Rollback failed charge creation

This reverts commit 2bec934732.

db/README.md

@@ -18,6 +18,8 @@
 14. `db/migrations/0018_shopify_delta_sync_state.sql`
 15. `db/migrations/0019_allow_multiple_open_stock_lots.sql`
 16. `db/migrations/0020_include_stock_adjustments_in_balance.sql`
+17. `db/migrations/0021_stock_lot_activation_selection.sql`
+18. `db/migrations/0022_backfill_stock_lot_activation_selection.sql`
 
 ## Beispielausfuehrung
 

db/migrations/0021_stock_lot_activation_selection.sql

@@ -0,0 +1,119 @@
+BEGIN;
+
+ALTER TABLE stock_lot
+  ADD COLUMN IF NOT EXISTS next_active BOOLEAN NOT NULL DEFAULT FALSE;
+
+CREATE UNIQUE INDEX IF NOT EXISTS uq_stock_lot_one_next_active_per_product
+  ON stock_lot(product_id)
+  WHERE status = 'open' AND next_active = TRUE;
+
+CREATE OR REPLACE FUNCTION fn_auto_switch_lot_when_depleted()
+RETURNS TRIGGER
+LANGUAGE plpgsql
+AS $$
+DECLARE
+  v_product_id BIGINT;
+  v_open_lot_id BIGINT;
+  v_qualified_count INTEGER;
+  v_current_net NUMERIC;
+  v_event_key TEXT;
+BEGIN
+  SELECT product_id
+  INTO v_product_id
+  FROM stock_lot
+  WHERE id = NEW.lot_id;
+
+  IF NOT EXISTS (
+    SELECT 1 FROM stock_lot WHERE id = NEW.lot_id AND status = 'current'
+  ) THEN
+    RETURN NEW;
+  END IF;
+
+  SELECT qty_net
+  INTO v_current_net
+  FROM v_stock_lot_balance
+  WHERE stock_lot_id = NEW.lot_id;
+
+  IF COALESCE(v_current_net, 0) > 0 THEN
+    RETURN NEW;
+  END IF;
+
+  PERFORM 1
+  FROM stock_lot
+  WHERE product_id = v_product_id
+  FOR UPDATE;
+
+  IF NOT EXISTS (
+    SELECT 1 FROM stock_lot WHERE id = NEW.lot_id AND status = 'current'
+  ) THEN
+    RETURN NEW;
+  END IF;
+
+  SELECT sl.id
+  INTO v_open_lot_id
+  FROM stock_lot sl
+  INNER JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+  WHERE sl.product_id = v_product_id
+    AND sl.status = 'open'
+    AND sl.next_active = TRUE
+    AND NULLIF(TRIM(sl.lot_number), '') IS NOT NULL
+    AND sl.manufacturer_party_id IS NOT NULL
+    AND NULLIF(TRIM(sl.manufacturer_lot_number), '') IS NOT NULL
+    AND sl.mfg_date IS NOT NULL
+    AND sl.expiry_date IS NOT NULL
+    AND sl.purchase_date IS NOT NULL
+    AND v.qty_net > 0
+  LIMIT 1;
+
+  IF v_open_lot_id IS NULL THEN
+    SELECT COUNT(*), MIN(sl.id)
+    INTO v_qualified_count, v_open_lot_id
+    FROM stock_lot sl
+    INNER JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+    WHERE sl.product_id = v_product_id
+      AND sl.status = 'open'
+      AND NULLIF(TRIM(sl.lot_number), '') IS NOT NULL
+      AND sl.manufacturer_party_id IS NOT NULL
+      AND NULLIF(TRIM(sl.manufacturer_lot_number), '') IS NOT NULL
+      AND sl.mfg_date IS NOT NULL
+      AND sl.expiry_date IS NOT NULL
+      AND sl.purchase_date IS NOT NULL
+      AND v.qty_net > 0;
+
+    IF v_qualified_count <> 1 THEN
+      RETURN NEW;
+    END IF;
+
+    UPDATE stock_lot
+    SET next_active = TRUE, updated_at = NOW()
+    WHERE id = v_open_lot_id;
+  END IF;
+
+  UPDATE stock_lot
+  SET status = 'closed', updated_at = NOW()
+  WHERE id = NEW.lot_id;
+
+  UPDATE stock_lot
+  SET status = 'current', next_active = FALSE, updated_at = NOW()
+  WHERE id = v_open_lot_id;
+
+  v_event_key := format('lot.auto_switched:%s:%s', v_product_id, txid_current());
+
+  PERFORM fn_enqueue_event(
+    'lot.auto_switched',
+    v_event_key,
+    'stock_lot',
+    NEW.lot_id::TEXT,
+    jsonb_build_object(
+      'productId', v_product_id,
+      'closedLotId', NEW.lot_id,
+      'newCurrentLotId', v_open_lot_id,
+      'occurredAt', NOW()
+    )
+  );
+
+  RETURN NEW;
+END;
+$$;
+
+COMMIT;

db/migrations/0021_stock_lot_documents.sql

@@ -1,18 +0,0 @@
-BEGIN;
-
-CREATE TABLE stock_lot_document (
-  id BIGSERIAL PRIMARY KEY,
-  stock_lot_id BIGINT NOT NULL REFERENCES stock_lot(id) ON DELETE CASCADE,
-  original_filename TEXT NOT NULL,
-  stored_filename TEXT NOT NULL,
-  mime_type TEXT NOT NULL,
-  size_bytes BIGINT NOT NULL,
-  comment TEXT,
-  uploaded_by TEXT NOT NULL,
-  uploaded_at TIMESTAMP NOT NULL DEFAULT NOW(),
-  CONSTRAINT chk_stock_lot_document_size CHECK (size_bytes > 0 AND size_bytes <= 52428800)
-);
-
-CREATE INDEX idx_stock_lot_document_lot ON stock_lot_document(stock_lot_id, id);
-
-COMMIT;

db/migrations/0022_backfill_stock_lot_activation_selection.sql

@@ -0,0 +1,25 @@
+BEGIN;
+
+WITH qualified AS (
+  SELECT
+    sl.id,
+    sl.product_id,
+    COUNT(*) OVER (PARTITION BY sl.product_id) AS qualified_count
+  FROM stock_lot sl
+  INNER JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+  WHERE sl.status = 'open'
+    AND NULLIF(TRIM(sl.lot_number), '') IS NOT NULL
+    AND sl.manufacturer_party_id IS NOT NULL
+    AND NULLIF(TRIM(sl.manufacturer_lot_number), '') IS NOT NULL
+    AND sl.mfg_date IS NOT NULL
+    AND sl.expiry_date IS NOT NULL
+    AND sl.purchase_date IS NOT NULL
+    AND v.qty_net > 0
+)
+UPDATE stock_lot sl
+SET next_active = TRUE, updated_at = NOW()
+FROM qualified q
+WHERE sl.id = q.id
+  AND q.qualified_count = 1;
+
+COMMIT;

docs/modules/erp/lager/processes/main/erp.lager.stock_lot_forecast_refresh.md

@@ -4,7 +4,7 @@ Status: Verbindliche Prozess-Spezifikation
 
 ## 1. Zweck
 
-Tägliche Berechnung und Speicherung des voraussichtlichen Leer-Datums jeder aktuellen Charge aktiver Produkte.
+Tägliche Berechnung und Speicherung des voraussichtlichen Leer-Datums der aktuellen Charge und – sofern vorhanden – der qualifizierten, als nächste Charge markierten offenen Charge aktiver Produkte.
 
 ## 2. Prozess-Einbettung
 
@@ -13,18 +13,18 @@ Direkt ausgeführter Lager-Prozess mit zwei Triggern: synchron nach jeder erfolg
 ## 3. Input
 
 - optional eine einzelne `product_id` bei synchronem Verkaufstrigger
-- aktive Produkte, aktuelle Chargen, eingetragene Mengen aller offenen Folgechargen, physischer Chargenbestand und gültige Verkaufsallokationen aus dem eigenen Datenbestand
+- aktive Produkte, aktuelle Charge, qualifizierte als nächste Charge markierte offene Charge, physische Chargenbestände und gültige Verkaufsallokationen aus dem eigenen Datenbestand
 
 ## 4. Exakter Prozessablauf
 
 1. Bei einem Verkaufstrigger die betroffenen Produkt-IDs aus der erfolgreichen Allokation übernehmen; beim Cron-Trigger alle aktiven Produkte bestimmen.
-2. Aktive Produkte, ihre aktuelle Charge und die Nettobestände aller bereits angelegten offenen Folgechargen aus `product`, `stock_lot` und `v_stock_lot_balance` laden. Je offene Folgecharge wird nur eine positive Menge berücksichtigt.
+2. Aktive Produkte, ihre aktuelle Charge und die qualifizierte, als nächste Charge markierte offene Charge aus `product`, `stock_lot` und `v_stock_lot_balance` laden. Für jede Charge wird nur ihr eigener positiver Nettobestand berücksichtigt.
 3. Verkaufsallokationen der letzten 365 Tage aus `sales_order_line_lot_allocation`, `sales_order_line` und `sales_order` laden.
 4. `allocated`- und `reserved`-Mengen nach Bestell- beziehungsweise OTC-Verkaufsdatum je Produkt und Kalendertag aggregieren.
 5. Stornierte Auftrags- und Positionsmengen aus der Nachfrage herausrechnen.
 6. Den gewichteten Tagesabsatz mit einer Halbwertszeit von 60 Tagen berechnen.
-7. Für jede aktuelle Charge das Leer-Datum aus ihrem physischen Bestand zuzüglich der eingetragenen Mengen aller offenen Folgechargen und der gewichteten Nachfrage berechnen.
-8. Jede erfolgreiche Berechnung in `stock_lot_forecast_history` speichern und den aktuellen Snapshot in `stock_lot` aktualisieren.
+7. Das Leer-Datum der aktuellen Charge aus ihrem physischen Bestand und der gewichteten Nachfrage berechnen. Das Leer-Datum der nächsten Charge wird mit derselben Nachfrage ab dem Leer-Datum der aktuellen Charge weitergerechnet; bei bereits leerer aktueller Charge beginnt es am aktuellen Datum.
+8. Jede erfolgreiche Berechnung je Charge in `stock_lot_forecast_history` speichern und den jeweiligen Snapshot in `stock_lot` aktualisieren.
 9. Im Cron Fehler einzelner Produkte sammeln und mit den übrigen Produkten fortfahren.
 
 ## 5. Batch, Betriebsmodell und Einbettung
@@ -37,7 +37,8 @@ Ein normalisiertes JSON-Ergebnis mit Gesamtzahl, erfolgreich verarbeiteten Produ
 
 ## 7. Erfolgskriterien
 
-- Jede aktuelle Charge erhält täglich einen aktuellen Prognosesnapshot, der eingetragene Mengen aller offenen Folgechargen berücksichtigt.
+- Jede aktuelle Charge erhält täglich einen Prognosesnapshot nur für ihren eigenen Bestand.
+- Eine qualifizierte, als nächste Charge markierte offene Charge erhält einen separaten Prognosesnapshot nur für ihren eigenen Bestand.
 - Verkäufe ohne Bestand über virtuelle `reserved`-Allokationen beeinflussen die Nachfrage.
 - Die vollständige Berechnungshistorie bleibt erhalten.
 - Ein einzelner Produktfehler verhindert keine weiteren Berechnungen.

modules/erp/lager/api/lot.php

@@ -20,30 +20,6 @@ try {
         json_response(405, ['ok' => false, 'error' => 'Method Not Allowed']);
     }
 
-    $contentType = (string) ($_SERVER['CONTENT_TYPE'] ?? '');
-    if (str_starts_with($contentType, 'multipart/form-data')) {
-        if (!auth_validate_csrf_token($_POST['csrfToken'] ?? null)) {
-            json_response(403, ['ok' => false, 'error' => 'Invalid security token']);
-        }
-        if (($_POST['action'] ?? '') !== 'upload_document') {
-            json_response(422, ['ok' => false, 'error' => 'Unsupported action']);
-        }
-        $file = $_FILES['document'] ?? null;
-        if (!is_array($file)) {
-            throw new InvalidArgumentException('Dokumentdatei fehlt');
-        }
-        $document = upload_stock_lot_document(
-            $pdo,
-            (int) ($_POST['lotId'] ?? 0),
-            $file,
-            (string) ($currentUser['username'] ?? $currentUser['email'] ?? 'unknown')
-        );
-        json_response(201, ['ok' => true, 'document' => [
-            'id' => (int) $document['id'],
-            'original_filename' => (string) $document['original_filename'],
-        ]]);
-    }
-
     $jsonInput = file_get_contents('php://input');
     if ($jsonInput === false || trim($jsonInput) === '') {
         json_response(400, ['ok' => false, 'error' => 'Empty payload']);
@@ -87,9 +63,25 @@ try {
             $outQty
         );
         $productId = (int) $updatedLot['product_id'];
+        if (($updatedLot['status'] ?? '') === 'open') {
+            sync_open_lot_activation_selection($pdo, $productId);
+            $updatedLot['next_active'] = is_open_lot_selected_for_activation($pdo, (int) $updatedLot['id']);
+        } else {
+            ensure_current_lot_and_reconcile_virtual_shortage(
+                $pdo,
+                $productId,
+                (string) ($currentUser['username'] ?? $currentUser['email'] ?? 'unknown'),
+                'Verrechnung nach Pflege der aktiven Charge'
+            );
+        }
         refresh_lager_stock_lot_forecast_for_product($pdo, $productId);
         $forecast = get_lager_product_forecast($pdo, $productId);
-        json_response(200, ['ok' => true, 'productId' => $productId, 'lot' => $updatedLot, 'balance' => get_stock_lot_balance($pdo, (int) ($data['lotId'] ?? 0)), 'forecast' => $forecast]);
+        $currentLot = get_current_lot_snapshot($pdo, $productId);
+        json_response(200, ['ok' => true, 'productId' => $productId, 'lot' => $currentLot, 'balance' => [
+            'qty_net' => $currentLot['qty_net'],
+            'qty_in' => $currentLot['qty_in'],
+            'qty_out' => $currentLot['qty_out'],
+        ], 'forecast' => $forecast]);
     }
 
     if ($action === 'delete_open_lot') {
@@ -98,21 +90,29 @@ try {
             (int) ($data['lotId'] ?? 0),
             (string) ($currentUser['username'] ?? $currentUser['email'] ?? 'unknown')
         );
-        json_response(200, ['ok' => true, 'productId' => $productId, 'availableQty' => get_lager_product_available_qty($pdo, $productId)]);
-    }
-
-    if ($action === 'delete_document') {
-        delete_stock_lot_document($pdo, (int) ($data['documentId'] ?? 0));
-        json_response(200, ['ok' => true]);
+        sync_open_lot_activation_selection($pdo, $productId);
+        ensure_current_lot_and_reconcile_virtual_shortage(
+            $pdo,
+            $productId,
+            (string) ($currentUser['username'] ?? $currentUser['email'] ?? 'unknown'),
+            'Verrechnung nach Loeschung einer offenen Charge'
+        );
+        json_response(200, ['ok' => true, 'productId' => $productId, 'currentLot' => get_current_lot_snapshot($pdo, $productId), 'availableQty' => get_lager_product_available_qty($pdo, $productId)]);
     }
 
     if ($action === 'prepare_lot') {
         $productId = (int) ($data['productId'] ?? 0);
         $lotNumber = trim((string) ($data['lotNumber'] ?? ''));
         $lotId = (int) ($data['lotId'] ?? 0);
-        if ($lotNumber === '' && $lotId <= 0) {
-            throw new InvalidArgumentException('Naurua-Chargennummer fehlt');
-        }
+        $manufacturerPartyId = $data['manufacturerPartyId'] ?? null;
+        $manufacturerPartyId = $manufacturerPartyId === null || $manufacturerPartyId === '' ? null : (int) $manufacturerPartyId;
+        $manufacturerLotNumber = trim((string) ($data['manufacturerLotNumber'] ?? ''));
+        $mfgDate = trim((string) ($data['mfgDate'] ?? ''));
+        $expiryDate = trim((string) ($data['expiryDate'] ?? ''));
+        $purchaseDate = trim((string) ($data['purchaseDate'] ?? ''));
+        $receiptQty = isset($data['receiptQty']) && $data['receiptQty'] !== '' ? (float) $data['receiptQty'] : 0.0;
+        $targetQty = isset($data['targetQty']) && $data['targetQty'] !== '' ? (float) $data['targetQty'] : null;
+        $pdo->beginTransaction();
         if ($lotId > 0) {
             $lotStmt = $pdo->prepare(
                 "SELECT id
@@ -126,38 +126,71 @@ try {
                 throw new InvalidArgumentException('Offene Charge nicht gefunden');
             }
         } else {
-            $lotId = get_or_create_open_lot($pdo, $productId);
+            $lotId = create_open_lot($pdo, $productId);
         }
-        $manufacturerPartyId = $data['manufacturerPartyId'] ?? null;
-        $manufacturerPartyId = $manufacturerPartyId === null || $manufacturerPartyId === '' ? null : (int) $manufacturerPartyId;
-        $receiptQty = isset($data['receiptQty']) && $data['receiptQty'] !== '' ? (float) $data['receiptQty'] : 0.0;
-        $targetQty = isset($data['targetQty']) && $data['targetQty'] !== '' ? (float) $data['targetQty'] : null;
         $preparedLot = update_stock_lot_traceability(
             $pdo,
             $lotId,
             $manufacturerPartyId,
-            isset($data['manufacturerLotNumber']) ? (string) $data['manufacturerLotNumber'] : null,
-            isset($data['mfgDate']) ? (string) $data['mfgDate'] : null,
-            isset($data['expiryDate']) ? (string) $data['expiryDate'] : null,
-            isset($data['purchaseDate']) ? (string) $data['purchaseDate'] : null,
+            $manufacturerLotNumber,
+            $mfgDate,
+            $expiryDate,
+            $purchaseDate,
             (string) ($currentUser['username'] ?? $currentUser['email'] ?? 'unknown'),
             $receiptQty,
             0.0,
             0.0,
             $lotNumber,
             $targetQty,
-            $lotId > 0 && $lotNumber === ''
+            $lotNumber === ''
         );
+        sync_open_lot_activation_selection($pdo, $productId);
+        if (promote_open_lot_when_virtual_shortage_is_current($pdo, $productId, $lotId, (string) ($currentUser['username'] ?? $currentUser['email'] ?? 'unknown'))) {
+            $preparedLot['status'] = 'current';
+            $preparedLot['next_active'] = false;
+        } else {
+            $preparedLot['next_active'] = is_open_lot_selected_for_activation($pdo, $lotId);
+        }
         refresh_lager_stock_lot_forecast_for_product($pdo, $productId);
         $forecast = get_lager_product_forecast($pdo, $productId);
+        $pdo->commit();
         json_response(200, ['ok' => true, 'productId' => $productId, 'lot' => $preparedLot, 'balance' => get_stock_lot_balance($pdo, $lotId), 'availableQty' => get_lager_product_available_qty($pdo, $productId), 'forecast' => $forecast]);
     }
 
+    if ($action === 'select_open_lot') {
+        $productId = (int) ($data['productId'] ?? 0);
+        $lotId = (int) ($data['lotId'] ?? 0);
+        select_open_lot_for_activation($pdo, $productId, $lotId);
+        ensure_current_lot_and_reconcile_virtual_shortage(
+            $pdo,
+            $productId,
+            (string) ($currentUser['username'] ?? $currentUser['email'] ?? 'unknown'),
+            'Verrechnung nach Auswahl der naechsten aktiven Charge'
+        );
+        refresh_lager_stock_lot_forecast_for_product($pdo, $productId);
+        $currentLot = get_current_lot_snapshot($pdo, $productId);
+        json_response(200, ['ok' => true, 'productId' => $productId, 'selectedLotId' => $lotId, 'currentLot' => $currentLot, 'forecast' => get_lager_product_forecast($pdo, $productId)]);
+    }
+
     json_response(422, ['ok' => false, 'error' => 'Unsupported action']);
 } catch (JsonException) {
     json_response(400, ['ok' => false, 'error' => 'Invalid JSON payload']);
 } catch (InvalidArgumentException $error) {
     json_response(422, ['ok' => false, 'error' => $error->getMessage()]);
 } catch (Throwable $error) {
+    if (isset($pdo) && $pdo->inTransaction()) {
+        $pdo->rollBack();
+    }
+    try {
+        system_write_audit_log($pdo, 'lager_api', 'lager-charge.php', 'request_failed', $currentUser['username'] ?? $currentUser['email'] ?? 'unknown', [], [], [
+            'action' => $action ?? '',
+            'product_id' => $data['productId'] ?? null,
+            'lot_id' => $data['lotId'] ?? null,
+            'exception_class' => get_class($error),
+            'exception_message' => $error->getMessage(),
+        ]);
+    } catch (Throwable) {
+        error_log('lager-charge API failure audit logging failed');
+    }
     json_response(500, ['ok' => false, 'error' => 'Interner Serverfehler']);
 }

modules/erp/lager/forecast.php

@@ -35,15 +35,25 @@ function lager_forecast_load_current_lots(PDO $pdo): array
 {
     $stmt = $pdo->query(
         "SELECT p.id AS product_id, p.sku, sl.id AS lot_id,
-                COALESCE(v.qty_net, 0) + COALESCE((
-                    SELECT SUM(GREATEST(COALESCE(open_v.qty_net, 0), 0))
-                    FROM stock_lot open_lot
-                    LEFT JOIN v_stock_lot_balance open_v ON open_v.stock_lot_id = open_lot.id
-                    WHERE open_lot.product_id = p.id AND open_lot.status = 'open'
-                ), 0) AS physical_qty
+                COALESCE(v.qty_net, 0) AS physical_qty,
+                next_sl.id AS next_lot_id,
+                COALESCE(next_v.qty_net, 0) AS next_physical_qty
          FROM product p
          LEFT JOIN stock_lot sl ON sl.product_id = p.id AND sl.status = 'current'
          LEFT JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+         LEFT JOIN stock_lot next_sl
+             ON next_sl.product_id = p.id
+            AND next_sl.status = 'open'
+            AND next_sl.next_active = TRUE
+            AND NULLIF(TRIM(next_sl.lot_number), '') IS NOT NULL
+            AND next_sl.manufacturer_party_id IS NOT NULL
+            AND NULLIF(TRIM(next_sl.manufacturer_lot_number), '') IS NOT NULL
+            AND next_sl.mfg_date IS NOT NULL
+            AND next_sl.expiry_date IS NOT NULL
+            AND next_sl.purchase_date IS NOT NULL
+         LEFT JOIN v_stock_lot_balance next_v
+             ON next_v.stock_lot_id = next_sl.id
+            AND next_v.qty_net > 0
          WHERE p.status = 'active'
          ORDER BY p.id"
     );
@@ -54,15 +64,25 @@ function lager_forecast_load_current_lot(PDO $pdo, int $productId): ?array
 {
     $stmt = $pdo->prepare(
         "SELECT p.id AS product_id, p.sku, sl.id AS lot_id,
-                COALESCE(v.qty_net, 0) + COALESCE((
-                    SELECT SUM(GREATEST(COALESCE(open_v.qty_net, 0), 0))
-                    FROM stock_lot open_lot
-                    LEFT JOIN v_stock_lot_balance open_v ON open_v.stock_lot_id = open_lot.id
-                    WHERE open_lot.product_id = p.id AND open_lot.status = 'open'
-                ), 0) AS physical_qty
+                COALESCE(v.qty_net, 0) AS physical_qty,
+                next_sl.id AS next_lot_id,
+                COALESCE(next_v.qty_net, 0) AS next_physical_qty
          FROM product p
          LEFT JOIN stock_lot sl ON sl.product_id = p.id AND sl.status = 'current'
          LEFT JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+         LEFT JOIN stock_lot next_sl
+             ON next_sl.product_id = p.id
+            AND next_sl.status = 'open'
+            AND next_sl.next_active = TRUE
+            AND NULLIF(TRIM(next_sl.lot_number), '') IS NOT NULL
+            AND next_sl.manufacturer_party_id IS NOT NULL
+            AND NULLIF(TRIM(next_sl.manufacturer_lot_number), '') IS NOT NULL
+            AND next_sl.mfg_date IS NOT NULL
+            AND next_sl.expiry_date IS NOT NULL
+            AND next_sl.purchase_date IS NOT NULL
+         LEFT JOIN v_stock_lot_balance next_v
+             ON next_v.stock_lot_id = next_sl.id
+            AND next_v.qty_net > 0
          WHERE p.status = 'active' AND p.id = :product_id
          LIMIT 1"
     );
@@ -104,7 +124,12 @@ function lager_forecast_load_daily_sales(PDO $pdo, DateTimeImmutable $asOfDate,
     return $sales;
 }
 
-function lager_forecast_calculate(DateTimeImmutable $asOfDate, float $physicalQty, array $dailySales): array
+function lager_forecast_calculate(
+    DateTimeImmutable $asOfDate,
+    float $physicalQty,
+    array $dailySales,
+    ?DateTimeImmutable $forecastStartDate = null
+): array
 {
     $lookbackDays = 365;
     $halfLifeDays = 60;
@@ -156,8 +181,9 @@ function lager_forecast_calculate(DateTimeImmutable $asOfDate, float $physicalQt
         ? 'high'
         : ($salesDays >= 10 ? 'medium' : 'low');
     $daysUntilDepleted = (int) ceil($physicalQty / $dailyDemand);
+    $forecastStartDate ??= $asOfDate;
     return [
-        'forecast_date' => $asOfDate->modify('+' . $daysUntilDepleted . ' days')->format('Y-m-d'),
+        'forecast_date' => $forecastStartDate->modify('+' . $daysUntilDepleted . ' days')->format('Y-m-d'),
         'forecast_status' => 'forecast', 'confidence' => $confidence, 'daily_demand' => $dailyDemand,
         'sales_units' => $salesUnits, 'sales_days' => $salesDays, 'observed_span_days' => $observedSpanDays,
         'lookback_days' => $lookbackDays, 'half_life_days' => $halfLifeDays,
@@ -235,6 +261,18 @@ function refresh_lager_stock_lot_forecast_for_product(PDO $pdo, int $productId):
         $dailySales[$productId] ?? []
     );
     lager_forecast_persist($pdo, $lot, $forecast, $asOfDate);
+    if ($lot['next_lot_id'] !== null && $forecast['forecast_date'] !== null) {
+        lager_forecast_persist($pdo, [
+            'lot_id' => $lot['next_lot_id'],
+            'product_id' => $productId,
+            'physical_qty' => $lot['next_physical_qty'],
+        ], lager_forecast_calculate(
+            $asOfDate,
+            (float) $lot['next_physical_qty'],
+            $dailySales[$productId] ?? [],
+            new DateTimeImmutable($forecast['forecast_date'])
+        ), $asOfDate);
+    }
 }
 
 function run_lager_stock_lot_forecast(PDO $pdo): array
@@ -260,6 +298,18 @@ function run_lager_stock_lot_forecast(PDO $pdo): array
             try {
                 $forecast = lager_forecast_calculate($asOfDate, (float) $lot['physical_qty'], $dailySales[$productId] ?? []);
                 lager_forecast_persist($pdo, $lot, $forecast, $asOfDate);
+                if ($lot['next_lot_id'] !== null && $forecast['forecast_date'] !== null) {
+                    lager_forecast_persist($pdo, [
+                        'lot_id' => $lot['next_lot_id'],
+                        'product_id' => $productId,
+                        'physical_qty' => $lot['next_physical_qty'],
+                    ], lager_forecast_calculate(
+                        $asOfDate,
+                        (float) $lot['next_physical_qty'],
+                        $dailySales[$productId] ?? [],
+                        new DateTimeImmutable($forecast['forecast_date'])
+                    ), $asOfDate);
+                }
                 $result['processed_products']++;
             } catch (Throwable $error) {
                 $result['failed_products']++;

modules/erp/lager/service.php

@@ -75,13 +75,7 @@ function get_lager_product_overview(PDO $pdo): array
             p.name,
             p.sku,
             p.uom,
-            COALESCE(SUM(v.qty_net), 0) + COALESCE((
-                SELECT SUM(open_v.qty_net)
-                FROM stock_lot open_sl
-                INNER JOIN v_stock_lot_balance open_v ON open_v.stock_lot_id = open_sl.id
-                WHERE open_sl.product_id = p.id
-                  AND open_sl.status = 'open'
-            ), 0) AS available_qty,
+            COALESCE(v.qty_net, 0) AS available_qty,
             COALESCE(v.qty_net, 0) AS current_qty,
             COALESCE(v.qty_in, 0) AS qty_in,
             sl.lot_number,
@@ -94,6 +88,11 @@ function get_lager_product_overview(PDO $pdo): array
             sl.purchase_date,
             sl.sellout_date,
             sl.sellout_forecast_status,
+            next_sl.id AS next_lot_id,
+            COALESCE(next_v.qty_net, 0) AS next_qty,
+            next_sl.sellout_date AS next_sellout_date,
+            next_sl.sellout_forecast_status AS next_sellout_forecast_status,
+            next_sl.expiry_date AS next_expiry_date,
             COALESCE((
                 SELECT SUM(a.qty)
                 FROM sales_order_line_lot_allocation a
@@ -117,10 +116,25 @@ function get_lager_product_overview(PDO $pdo): array
          LEFT JOIN party mp ON mp.id = sl.manufacturer_party_id
          LEFT JOIN v_stock_lot_balance v
              ON v.stock_lot_id = sl.id
+         LEFT JOIN stock_lot next_sl
+             ON next_sl.product_id = p.id
+            AND next_sl.status = 'open'
+            AND next_sl.next_active = TRUE
+            AND NULLIF(TRIM(next_sl.lot_number), '') IS NOT NULL
+            AND next_sl.manufacturer_party_id IS NOT NULL
+            AND NULLIF(TRIM(next_sl.manufacturer_lot_number), '') IS NOT NULL
+            AND next_sl.mfg_date IS NOT NULL
+            AND next_sl.expiry_date IS NOT NULL
+            AND next_sl.purchase_date IS NOT NULL
+         LEFT JOIN v_stock_lot_balance next_v
+             ON next_v.stock_lot_id = next_sl.id
+            AND next_v.qty_net > 0
          WHERE p.status = 'active'
          GROUP BY p.id, p.name, p.sku, p.uom, sl.id, sl.lot_number, sl.manufacturer_party_id,
                   sl.manufacturer_lot_number, mp.name, sl.mfg_date, sl.expiry_date, sl.purchase_date,
-                  sl.sellout_date, sl.sellout_forecast_status, v.qty_net, v.qty_in
+                  sl.sellout_date, sl.sellout_forecast_status, v.qty_net, v.qty_in,
+                  next_sl.id, next_v.qty_net, next_sl.sellout_date,
+                  next_sl.sellout_forecast_status, next_sl.expiry_date
          ORDER BY p.name ASC, p.id ASC"
     );
 
@@ -143,6 +157,11 @@ function get_lager_product_overview(PDO $pdo): array
             'purchase_date' => $row['purchase_date'],
             'sellout_date' => $row['sellout_date'],
             'sellout_forecast_status' => (string) ($row['sellout_forecast_status'] ?? 'no_demand'),
+            'next_lot_id' => $row['next_lot_id'] === null ? null : (int) $row['next_lot_id'],
+            'next_qty' => (float) ($row['next_qty'] ?? 0),
+            'next_sellout_date' => $row['next_sellout_date'],
+            'next_sellout_forecast_status' => (string) ($row['next_sellout_forecast_status'] ?? 'no_demand'),
+            'next_expiry_date' => $row['next_expiry_date'],
             'virtual_shortage_qty' => (float) ($row['virtual_shortage_qty'] ?? 0),
             'virtual_lot_number' => $row['virtual_lot_number'],
         ],
@@ -205,6 +224,7 @@ function get_lager_product_overview(PDO $pdo): array
             sl.mfg_date,
             sl.expiry_date,
             sl.purchase_date,
+            sl.next_active,
             COALESCE(v.qty_in, 0) AS qty_in,
             COALESCE(v.qty_net, 0) AS qty_net
          FROM stock_lot sl
@@ -223,9 +243,10 @@ function get_lager_product_overview(PDO $pdo): array
                 'manufacturer_name' => $openLot['manufacturer_name'],
                 'mfg_date' => $openLot['mfg_date'],
                 'expiry_date' => $openLot['expiry_date'],
-                'purchase_date' => $openLot['purchase_date'],
-                'qty_in' => (float) $openLot['qty_net'],
-                'qty_net' => (float) $openLot['qty_net'],
+            'purchase_date' => $openLot['purchase_date'],
+            'qty_in' => (float) $openLot['qty_net'],
+            'qty_net' => (float) $openLot['qty_net'],
+            'next_active' => (bool) $openLot['next_active'],
         ];
     }
 
@@ -235,32 +256,6 @@ function get_lager_product_overview(PDO $pdo): array
     }
     unset($product);
 
-    $lotIds = [];
-    foreach ($products as $product) {
-        if (!empty($product['lot_id'])) {
-            $lotIds[] = (int) $product['lot_id'];
-        }
-        foreach ($product['historical_lots'] as $lot) {
-            $lotIds[] = (int) ($lot['lot_id'] ?? 0);
-        }
-        foreach ($product['open_lots'] as $lot) {
-            $lotIds[] = (int) ($lot['lot_id'] ?? 0);
-        }
-    }
-    $documentsByLot = get_stock_lot_documents_by_lot_ids($pdo, $lotIds);
-    foreach ($products as &$product) {
-        $product['documents'] = $documentsByLot[(int) ($product['lot_id'] ?? 0)] ?? [];
-        foreach ($product['historical_lots'] as &$lot) {
-            $lot['documents'] = $documentsByLot[(int) ($lot['lot_id'] ?? 0)] ?? [];
-        }
-        unset($lot);
-        foreach ($product['open_lots'] as &$lot) {
-            $lot['documents'] = $documentsByLot[(int) ($lot['lot_id'] ?? 0)] ?? [];
-        }
-        unset($lot);
-    }
-    unset($product);
-
     return $products;
 }
 
@@ -277,127 +272,32 @@ function get_lager_product_available_qty(PDO $pdo, int $productId): float
     return (float) $stmt->fetchColumn();
 }
 
-function get_stock_lot_documents_by_lot_ids(PDO $pdo, array $lotIds): array
-{
-    $lotIds = array_values(array_unique(array_filter(array_map('intval', $lotIds), static fn (int $id): bool => $id > 0)));
-    if ($lotIds === []) {
-        return [];
-    }
-
-    $placeholders = implode(',', array_fill(0, count($lotIds), '?'));
-    $stmt = $pdo->prepare(
-        "SELECT id, stock_lot_id, original_filename, mime_type, size_bytes, uploaded_at
-         FROM stock_lot_document
-         WHERE stock_lot_id IN ({$placeholders})
-         ORDER BY stock_lot_id, id"
-    );
-    $stmt->execute($lotIds);
-    $documents = [];
-    foreach ($stmt->fetchAll() as $row) {
-        $documents[(int) $row['stock_lot_id']][] = [
-            'id' => (int) $row['id'],
-            'original_filename' => (string) $row['original_filename'],
-            'mime_type' => (string) $row['mime_type'],
-            'size_bytes' => (int) $row['size_bytes'],
-            'uploaded_at' => (string) $row['uploaded_at'],
-        ];
-    }
-    return $documents;
-}
-
-function get_stock_lot_document(PDO $pdo, int $documentId): array
-{
-    $stmt = $pdo->prepare(
-        'SELECT id, stock_lot_id, original_filename, stored_filename, mime_type, size_bytes
-         FROM stock_lot_document WHERE id = :id'
-    );
-    $stmt->execute([':id' => $documentId]);
-    $document = $stmt->fetch();
-    if (!is_array($document)) {
-        throw new RuntimeException('Dokument nicht gefunden');
-    }
-    return $document;
-}
-
-function delete_stock_lot_document(PDO $pdo, int $documentId): void
-{
-    $document = get_stock_lot_document($pdo, $documentId);
-    $statusStmt = $pdo->prepare('SELECT status FROM stock_lot WHERE id = :id');
-    $statusStmt->execute([':id' => (int) $document['stock_lot_id']]);
-    $status = $statusStmt->fetchColumn();
-    if ($status !== 'current' && $status !== 'open') {
-        throw new InvalidArgumentException('Dokumente vergangener Chargen können nicht gelöscht werden');
-    }
-    $stmt = $pdo->prepare('DELETE FROM stock_lot_document WHERE id = :id');
-    $stmt->execute([':id' => $documentId]);
-    $path = dirname(__DIR__, 3) . '/runtime/uploads/lager/' . basename((string) $document['stored_filename']);
-    if (is_file($path) && !unlink($path)) {
-        throw new RuntimeException('Dokumentdatei konnte nicht gelöscht werden');
-    }
-}
-
-function upload_stock_lot_document(PDO $pdo, int $lotId, array $file, string $uploadedBy): array
-{
-    if ($lotId <= 0 || !is_uploaded_file((string) ($file['tmp_name'] ?? ''))) {
-        throw new InvalidArgumentException('Ungültige Dokumentdatei');
-    }
-    $error = (int) ($file['error'] ?? UPLOAD_ERR_NO_FILE);
-    if ($error !== UPLOAD_ERR_OK) {
-        throw new InvalidArgumentException('Dokument konnte nicht hochgeladen werden');
-    }
-    $size = (int) ($file['size'] ?? 0);
-    if ($size <= 0 || $size > 52428800) {
-        throw new InvalidArgumentException('Dokument darf maximal 50 MB groß sein');
-    }
-    $originalFilename = basename((string) ($file['name'] ?? ''));
-    if ($originalFilename === '') {
-        throw new InvalidArgumentException('Dateiname fehlt');
-    }
-    $lotStmt = $pdo->prepare("SELECT id FROM stock_lot WHERE id = :id AND status IN ('current', 'open')");
-    $lotStmt->execute([':id' => $lotId]);
-    if ($lotStmt->fetchColumn() === false) {
-        throw new InvalidArgumentException('Charge nicht gefunden');
-    }
-
-    $directory = dirname(__DIR__, 3) . '/runtime/uploads/lager';
-    if (!is_dir($directory) && !mkdir($directory, 0770, true) && !is_dir($directory)) {
-        throw new RuntimeException('Dokumentenverzeichnis konnte nicht erstellt werden');
-    }
-    $storedFilename = bin2hex(random_bytes(16));
-    $targetPath = $directory . '/' . $storedFilename;
-    if (!move_uploaded_file((string) $file['tmp_name'], $targetPath)) {
-        throw new RuntimeException('Dokument konnte nicht gespeichert werden');
-    }
-    $mimeType = (new finfo(FILEINFO_MIME_TYPE))->file($targetPath) ?: 'application/octet-stream';
-    try {
-        $stmt = $pdo->prepare(
-            'INSERT INTO stock_lot_document
-                (stock_lot_id, original_filename, stored_filename, mime_type, size_bytes, uploaded_by)
-             VALUES (:lot_id, :original_filename, :stored_filename, :mime_type, :size_bytes, :uploaded_by)
-             RETURNING id'
-        );
-        $stmt->execute([
-            ':lot_id' => $lotId,
-            ':original_filename' => $originalFilename,
-            ':stored_filename' => $storedFilename,
-            ':mime_type' => $mimeType,
-            ':size_bytes' => $size,
-            ':uploaded_by' => $uploadedBy,
-        ]);
-        return get_stock_lot_document($pdo, (int) $stmt->fetchColumn());
-    } catch (Throwable $error) {
-        unlink($targetPath);
-        throw $error;
-    }
-}
-
 function get_lager_product_forecast(PDO $pdo, int $productId): array
 {
     $stmt = $pdo->prepare(
-        "SELECT sellout_date, sellout_forecast_status, expiry_date
+        "SELECT stock_lot.sellout_date, stock_lot.sellout_forecast_status, stock_lot.expiry_date,
+                next_lot.sellout_date AS next_sellout_date,
+                next_lot.sellout_forecast_status AS next_sellout_forecast_status,
+                next_lot.expiry_date AS next_expiry_date
          FROM stock_lot
-         WHERE product_id = :product_id
-           AND status = 'current'
+         LEFT JOIN LATERAL (
+             SELECT sl.sellout_date, sl.sellout_forecast_status, sl.expiry_date
+             FROM stock_lot sl
+             INNER JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+             WHERE sl.product_id = stock_lot.product_id
+               AND sl.status = 'open'
+               AND sl.next_active = TRUE
+               AND NULLIF(TRIM(sl.lot_number), '') IS NOT NULL
+               AND sl.manufacturer_party_id IS NOT NULL
+               AND NULLIF(TRIM(sl.manufacturer_lot_number), '') IS NOT NULL
+               AND sl.mfg_date IS NOT NULL
+               AND sl.expiry_date IS NOT NULL
+               AND sl.purchase_date IS NOT NULL
+               AND v.qty_net > 0
+             LIMIT 1
+         ) next_lot ON TRUE
+         WHERE stock_lot.product_id = :product_id
+           AND stock_lot.status = 'current'
          LIMIT 1"
     );
     $stmt->execute([':product_id' => $productId]);
@@ -409,6 +309,18 @@ function get_lager_product_forecast(PDO $pdo, int $productId): array
         'date' => $forecast['sellout_date'],
         'status' => (string) $forecast['sellout_forecast_status'],
         'expiryDate' => $forecast['expiry_date'],
+        'current' => [
+            'date' => $forecast['sellout_date'],
+            'status' => (string) $forecast['sellout_forecast_status'],
+            'expiryDate' => $forecast['expiry_date'],
+        ],
+        'next' => $forecast['next_sellout_date'] === null && $forecast['next_expiry_date'] === null
+            ? null
+            : [
+                'date' => $forecast['next_sellout_date'],
+                'status' => (string) ($forecast['next_sellout_forecast_status'] ?? 'no_demand'),
+                'expiryDate' => $forecast['next_expiry_date'],
+            ],
     ];
 }
 
@@ -590,7 +502,7 @@ function update_stock_lot_traceability(
         ]);
 
         if ($receiptQty > 0 || $adjustmentQty !== 0.0 || $outQty > 0) {
-            book_stock_lot_movements($pdo, (int) $before['product_id'], $lotId, $receiptQty, $adjustmentQty, $outQty);
+            book_stock_lot_movements($pdo, (int) $before['product_id'], $lotId, $receiptQty, $adjustmentQty, $outQty, $changedBy);
         }
 
         if ($startedTransaction) {
@@ -606,6 +518,506 @@ function update_stock_lot_traceability(
     }
 }
 
+function is_qualified_open_lot(PDO $pdo, int $lotId): bool
+{
+    $stmt = $pdo->prepare(
+        "SELECT EXISTS (
+            SELECT 1
+            FROM stock_lot sl
+            INNER JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+            WHERE sl.id = :lot_id
+              AND sl.status = 'open'
+              AND NULLIF(TRIM(sl.lot_number), '') IS NOT NULL
+              AND sl.manufacturer_party_id IS NOT NULL
+              AND NULLIF(TRIM(sl.manufacturer_lot_number), '') IS NOT NULL
+              AND sl.mfg_date IS NOT NULL
+              AND sl.expiry_date IS NOT NULL
+              AND sl.purchase_date IS NOT NULL
+              AND v.qty_net > 0
+        )"
+    );
+    $stmt->execute([':lot_id' => $lotId]);
+    return (bool) $stmt->fetchColumn();
+}
+
+function is_open_lot_selected_for_activation(PDO $pdo, int $lotId): bool
+{
+    $stmt = $pdo->prepare(
+        "SELECT next_active
+         FROM stock_lot
+         WHERE id = :lot_id
+           AND status = 'open'"
+    );
+    $stmt->execute([':lot_id' => $lotId]);
+    return (bool) $stmt->fetchColumn();
+}
+
+function sync_open_lot_activation_selection(PDO $pdo, int $productId): void
+{
+    $startedTransaction = !$pdo->inTransaction();
+    if ($startedTransaction) {
+        $pdo->beginTransaction();
+    }
+
+    try {
+        $lockStmt = $pdo->prepare(
+            "SELECT id
+             FROM stock_lot
+             WHERE product_id = :product_id
+               AND status = 'open'
+             FOR UPDATE"
+        );
+        $lockStmt->execute([':product_id' => $productId]);
+
+        $qualifiedStmt = $pdo->prepare(
+            "SELECT sl.id
+             FROM stock_lot sl
+             INNER JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+             WHERE sl.product_id = :product_id
+               AND sl.status = 'open'
+               AND NULLIF(TRIM(sl.lot_number), '') IS NOT NULL
+               AND sl.manufacturer_party_id IS NOT NULL
+               AND NULLIF(TRIM(sl.manufacturer_lot_number), '') IS NOT NULL
+               AND sl.mfg_date IS NOT NULL
+               AND sl.expiry_date IS NOT NULL
+               AND sl.purchase_date IS NOT NULL
+               AND v.qty_net > 0
+             ORDER BY sl.id"
+        );
+        $qualifiedStmt->execute([':product_id' => $productId]);
+        $qualifiedIds = array_map('intval', $qualifiedStmt->fetchAll(PDO::FETCH_COLUMN));
+
+        if (count($qualifiedIds) === 1) {
+            $clearStmt = $pdo->prepare(
+                "UPDATE stock_lot
+                 SET next_active = FALSE, updated_at = NOW()
+                 WHERE product_id = :product_id AND status = 'open'"
+            );
+            $clearStmt->execute([':product_id' => $productId]);
+            $selectStmt = $pdo->prepare(
+                "UPDATE stock_lot
+                 SET next_active = TRUE, updated_at = NOW()
+                 WHERE id = :lot_id"
+            );
+            $selectStmt->execute([':lot_id' => $qualifiedIds[0]]);
+        } elseif ($qualifiedIds === []) {
+            $clearStmt = $pdo->prepare(
+                "UPDATE stock_lot
+                 SET next_active = FALSE, updated_at = NOW()
+                 WHERE product_id = :product_id AND status = 'open'"
+            );
+            $clearStmt->execute([':product_id' => $productId]);
+        } else {
+            $selectedStmt = $pdo->prepare(
+                "SELECT id
+                 FROM stock_lot
+                 WHERE product_id = :product_id
+                   AND status = 'open'
+                   AND next_active = TRUE
+                 LIMIT 1
+                 FOR UPDATE"
+            );
+            $selectedStmt->execute([':product_id' => $productId]);
+            $selectedId = $selectedStmt->fetchColumn();
+            if ($selectedId === false || !in_array((int) $selectedId, $qualifiedIds, true)) {
+                $clearStmt = $pdo->prepare(
+                    "UPDATE stock_lot
+                     SET next_active = FALSE, updated_at = NOW()
+                     WHERE product_id = :product_id AND status = 'open'"
+                );
+                $clearStmt->execute([':product_id' => $productId]);
+            }
+        }
+
+        if ($startedTransaction) {
+            $pdo->commit();
+        }
+    } catch (Throwable $error) {
+        if ($startedTransaction && $pdo->inTransaction()) {
+            $pdo->rollBack();
+        }
+        throw $error;
+    }
+}
+
+function promote_open_lot_when_virtual_shortage_is_current(PDO $pdo, int $productId, int $lotId, string $changedBy): bool
+{
+    $startedTransaction = !$pdo->inTransaction();
+    if ($startedTransaction) {
+        $pdo->beginTransaction();
+    }
+
+    try {
+        $realCurrentStmt = $pdo->prepare(
+            "SELECT id
+             FROM stock_lot
+             WHERE product_id = :product_id
+               AND status = 'current'
+             LIMIT 1
+             FOR UPDATE"
+        );
+        $realCurrentStmt->execute([':product_id' => $productId]);
+        $realCurrent = $realCurrentStmt->fetch();
+        if (is_array($realCurrent)) {
+            $realCurrentBalanceStmt = $pdo->prepare(
+                "SELECT COALESCE(qty_net, 0)
+                 FROM v_stock_lot_balance
+                 WHERE stock_lot_id = :lot_id"
+            );
+            $realCurrentBalanceStmt->execute([':lot_id' => (int) $realCurrent['id']]);
+            $realCurrentQty = (float) ($realCurrentBalanceStmt->fetchColumn() ?: 0);
+        } else {
+            $realCurrentQty = 0.0;
+        }
+        if ($realCurrentQty > 0.0000001) {
+            if ($startedTransaction) {
+                $pdo->commit();
+            }
+            return false;
+        }
+
+        $currentStmt = $pdo->prepare(
+            "SELECT id
+             FROM stock_lot
+             WHERE product_id = :product_id
+               AND status = 'virtual_shortage'
+             ORDER BY id
+             LIMIT 1
+             FOR UPDATE"
+        );
+        $currentStmt->execute([':product_id' => $productId]);
+        $virtualShortageLotId = $currentStmt->fetchColumn();
+        if (!is_qualified_open_lot($pdo, $lotId)) {
+            if ($startedTransaction) {
+                $pdo->commit();
+            }
+            return false;
+        }
+
+        $lotStmt = $pdo->prepare(
+            "SELECT id
+             FROM stock_lot
+             WHERE id = :lot_id
+               AND product_id = :product_id
+               AND status = 'open'
+             FOR UPDATE"
+        );
+        $lotStmt->execute([':lot_id' => $lotId, ':product_id' => $productId]);
+        if ($lotStmt->fetchColumn() === false) {
+            if ($startedTransaction) {
+                $pdo->commit();
+            }
+            return false;
+        }
+
+        if (is_array($realCurrent)) {
+            $closeStmt = $pdo->prepare(
+                "UPDATE stock_lot
+                 SET status = 'closed', updated_at = NOW()
+                 WHERE id = :lot_id"
+            );
+            $closeStmt->execute([':lot_id' => (int) $realCurrent['id']]);
+        }
+
+        $promoteStmt = $pdo->prepare(
+            "UPDATE stock_lot
+             SET status = 'current', next_active = FALSE, updated_at = NOW()
+             WHERE id = :lot_id"
+        );
+        $promoteStmt->execute([':lot_id' => $lotId]);
+
+        if ($virtualShortageLotId !== false) {
+            reconcile_virtual_shortage_allocations(
+                $pdo,
+                (int) $virtualShortageLotId,
+                $lotId,
+                $changedBy,
+                'Automatische Verrechnung bei Aktivierung einer echten Charge'
+            );
+        }
+
+        if ($startedTransaction) {
+            $pdo->commit();
+        }
+        return true;
+    } catch (Throwable $error) {
+        if ($startedTransaction && $pdo->inTransaction()) {
+            $pdo->rollBack();
+        }
+        throw $error;
+    }
+}
+
+function reconcile_virtual_shortage_allocations(
+    PDO $pdo,
+    int $virtualLotId,
+    int $realLotId,
+    string $changedBy,
+    string $reason
+): void {
+    $allocationStmt = $pdo->prepare(
+        "SELECT id, qty
+         FROM sales_order_line_lot_allocation
+         WHERE lot_id = :lot_id
+           AND allocation_status = 'reserved'
+         ORDER BY id
+         FOR UPDATE"
+    );
+    $allocationStmt->execute([':lot_id' => $virtualLotId]);
+    $allocations = $allocationStmt->fetchAll();
+
+    foreach ($allocations as $allocation) {
+        $balanceStmt = $pdo->prepare(
+            "SELECT COALESCE(qty_net, 0)
+             FROM v_stock_lot_balance
+             WHERE stock_lot_id = :lot_id"
+        );
+        $balanceStmt->execute([':lot_id' => $realLotId]);
+        $availableQty = (float) ($balanceStmt->fetchColumn() ?: 0);
+        if ($availableQty <= 0.0000001) {
+            break;
+        }
+
+        $replaceQty = min((float) $allocation['qty'], $availableQty);
+        replace_virtual_lot_allocation(
+            $pdo,
+            (int) $allocation['id'],
+            $realLotId,
+            $replaceQty,
+            $changedBy,
+            $reason
+        );
+    }
+
+    $remainingStmt = $pdo->prepare(
+        "SELECT COUNT(*)
+         FROM sales_order_line_lot_allocation
+         WHERE lot_id = :lot_id
+           AND allocation_status = 'reserved'"
+    );
+    $remainingStmt->execute([':lot_id' => $virtualLotId]);
+    if ((int) $remainingStmt->fetchColumn() !== 0) {
+        return;
+    }
+
+    $closeStmt = $pdo->prepare(
+        "UPDATE stock_lot
+         SET status = 'closed', next_active = FALSE, updated_at = NOW()
+         WHERE id = :lot_id
+           AND status = 'virtual_shortage'"
+    );
+    $closeStmt->execute([':lot_id' => $virtualLotId]);
+    if ($closeStmt->rowCount() !== 1) {
+        throw new RuntimeException('Virtuelle Fehlbestandscharge konnte nicht aufgeloest werden');
+    }
+    system_write_audit_log($pdo, 'stock_lot', (string) $virtualLotId, 'closed', $changedBy, [
+        'status' => 'virtual_shortage',
+    ], [
+        'status' => 'closed',
+    ], [
+        'module' => 'erp.lager',
+        'reason' => $reason,
+    ]);
+}
+
+function ensure_current_lot_and_reconcile_virtual_shortage(
+    PDO $pdo,
+    int $productId,
+    string $changedBy,
+    string $reason
+): void {
+    $startedTransaction = !$pdo->inTransaction();
+    if ($startedTransaction) {
+        $pdo->beginTransaction();
+    }
+
+    try {
+        $currentStmt = $pdo->prepare(
+            "SELECT id
+             FROM stock_lot
+             WHERE product_id = :product_id
+               AND status = 'current'
+             LIMIT 1
+             FOR UPDATE"
+        );
+        $currentStmt->execute([':product_id' => $productId]);
+        $currentLotId = $currentStmt->fetchColumn();
+        if ($currentLotId === false) {
+            throw new RuntimeException("Keine aktuelle Charge fuer Produkt {$productId} vorhanden");
+        }
+
+        $balanceStmt = $pdo->prepare(
+            "SELECT COALESCE(qty_net, 0)
+             FROM v_stock_lot_balance
+             WHERE stock_lot_id = :lot_id"
+        );
+        $balanceStmt->execute([':lot_id' => (int) $currentLotId]);
+        $currentQty = (float) ($balanceStmt->fetchColumn() ?: 0);
+
+        if ($currentQty <= 0.0000001) {
+            sync_open_lot_activation_selection($pdo, $productId);
+
+            $selectedStmt = $pdo->prepare(
+                "SELECT sl.id
+                 FROM stock_lot sl
+                 INNER JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+                 WHERE sl.product_id = :product_id
+                   AND sl.status = 'open'
+                   AND sl.next_active = TRUE
+                   AND NULLIF(TRIM(sl.lot_number), '') IS NOT NULL
+                   AND sl.manufacturer_party_id IS NOT NULL
+                   AND NULLIF(TRIM(sl.manufacturer_lot_number), '') IS NOT NULL
+                   AND sl.mfg_date IS NOT NULL
+                   AND sl.expiry_date IS NOT NULL
+                   AND sl.purchase_date IS NOT NULL
+                   AND v.qty_net > 0
+                 LIMIT 1"
+            );
+            $selectedStmt->execute([':product_id' => $productId]);
+            $nextLotId = $selectedStmt->fetchColumn();
+
+            if ($nextLotId === false) {
+                $countStmt = $pdo->prepare(
+                    "SELECT COUNT(*), MIN(sl.id)
+                     FROM stock_lot sl
+                     INNER JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+                     WHERE sl.product_id = :product_id
+                       AND sl.status = 'open'
+                       AND NULLIF(TRIM(sl.lot_number), '') IS NOT NULL
+                       AND sl.manufacturer_party_id IS NOT NULL
+                       AND NULLIF(TRIM(sl.manufacturer_lot_number), '') IS NOT NULL
+                       AND sl.mfg_date IS NOT NULL
+                       AND sl.expiry_date IS NOT NULL
+                       AND sl.purchase_date IS NOT NULL
+                       AND v.qty_net > 0"
+                );
+                $countStmt->execute([':product_id' => $productId]);
+                $candidate = $countStmt->fetch(PDO::FETCH_NUM);
+                if (is_array($candidate) && (int) $candidate[0] === 1) {
+                    $nextLotId = $candidate[1];
+                }
+            }
+
+            if ($nextLotId !== false && $nextLotId !== null) {
+                promote_open_lot_when_virtual_shortage_is_current(
+                    $pdo,
+                    $productId,
+                    (int) $nextLotId,
+                    $changedBy
+                );
+            }
+        }
+
+        for ($iteration = 0; $iteration < 100; $iteration++) {
+            $currentStmt->execute([':product_id' => $productId]);
+            $currentLotId = $currentStmt->fetchColumn();
+            if ($currentLotId === false) {
+                throw new RuntimeException("Keine aktuelle Charge fuer Produkt {$productId} vorhanden");
+            }
+
+            $balanceStmt->execute([':lot_id' => (int) $currentLotId]);
+            $currentQty = (float) ($balanceStmt->fetchColumn() ?: 0);
+            if ($currentQty <= 0.0000001) {
+                break;
+            }
+
+            $virtualStmt = $pdo->prepare(
+                "SELECT id
+                 FROM stock_lot
+                 WHERE product_id = :product_id
+                   AND status = 'virtual_shortage'
+                 ORDER BY id
+                 LIMIT 1
+                 FOR UPDATE"
+            );
+            $virtualStmt->execute([':product_id' => $productId]);
+            $virtualLotId = $virtualStmt->fetchColumn();
+            if ($virtualLotId === false) {
+                break;
+            }
+
+            reconcile_virtual_shortage_allocations(
+                $pdo,
+                (int) $virtualLotId,
+                (int) $currentLotId,
+                $changedBy,
+                $reason
+            );
+
+            $remainingStmt = $pdo->prepare(
+                "SELECT COUNT(*)
+                 FROM sales_order_line_lot_allocation
+                 WHERE lot_id = :lot_id
+                   AND allocation_status = 'reserved'"
+            );
+            $remainingStmt->execute([':lot_id' => (int) $virtualLotId]);
+            if ((int) $remainingStmt->fetchColumn() === 0) {
+                break;
+            }
+        }
+        if ($iteration >= 100) {
+            throw new RuntimeException("Virtuelle Fehlbestandscharge fuer Produkt {$productId} konnte nicht vollstaendig verrechnet werden");
+        }
+
+        if ($startedTransaction) {
+            $pdo->commit();
+        }
+    } catch (Throwable $error) {
+        if ($startedTransaction && $pdo->inTransaction()) {
+            $pdo->rollBack();
+        }
+        throw $error;
+    }
+}
+
+function select_open_lot_for_activation(PDO $pdo, int $productId, int $lotId): void
+{
+    if ($productId <= 0 || $lotId <= 0) {
+        throw new InvalidArgumentException('Nur eine qualifizierte offene Charge kann ausgewaehlt werden');
+    }
+    $startedTransaction = !$pdo->inTransaction();
+    if ($startedTransaction) {
+        $pdo->beginTransaction();
+    }
+    try {
+        $lotStmt = $pdo->prepare(
+            "SELECT product_id, status
+             FROM stock_lot
+             WHERE id = :lot_id
+             FOR UPDATE"
+        );
+        $lotStmt->execute([':lot_id' => $lotId]);
+        $lot = $lotStmt->fetch();
+        if (!is_array($lot) || (int) $lot['product_id'] !== $productId || (string) $lot['status'] !== 'open') {
+            throw new InvalidArgumentException('Offene Charge nicht gefunden');
+        }
+        if (!is_qualified_open_lot($pdo, $lotId)) {
+            throw new InvalidArgumentException('Nur eine qualifizierte offene Charge kann ausgewaehlt werden');
+        }
+
+        $clearStmt = $pdo->prepare(
+            "UPDATE stock_lot
+             SET next_active = FALSE, updated_at = NOW()
+             WHERE product_id = :product_id AND status = 'open'"
+        );
+        $clearStmt->execute([':product_id' => $productId]);
+        $selectStmt = $pdo->prepare(
+            "UPDATE stock_lot
+             SET next_active = TRUE, updated_at = NOW()
+             WHERE id = :lot_id"
+        );
+        $selectStmt->execute([':lot_id' => $lotId]);
+        if ($startedTransaction) {
+            $pdo->commit();
+        }
+    } catch (Throwable $error) {
+        if ($startedTransaction && $pdo->inTransaction()) {
+            $pdo->rollBack();
+        }
+        throw $error;
+    }
+}
+
 function get_current_lot_balance_for_update(PDO $pdo, int $productId): array
 {
     $stmt = $pdo->prepare(
@@ -659,6 +1071,46 @@ function get_stock_lot_balance(PDO $pdo, int $lotId): array
     ];
 }
 
+function get_current_lot_snapshot(PDO $pdo, int $productId): array
+{
+    $stmt = $pdo->prepare(
+        "SELECT sl.id, sl.product_id, sl.lot_number, sl.status, sl.next_active,
+                sl.manufacturer_party_id, sl.manufacturer_lot_number,
+                mp.name AS manufacturer_name, sl.mfg_date, sl.expiry_date, sl.purchase_date,
+                COALESCE(v.qty_net, 0) AS qty_net,
+                COALESCE(v.qty_in, 0) AS qty_in,
+                COALESCE(v.qty_out, 0) AS qty_out
+         FROM stock_lot sl
+         LEFT JOIN party mp ON mp.id = sl.manufacturer_party_id
+         LEFT JOIN v_stock_lot_balance v ON v.stock_lot_id = sl.id
+         WHERE sl.product_id = :product_id
+           AND sl.status = 'current'
+         LIMIT 1"
+    );
+    $stmt->execute([':product_id' => $productId]);
+    $row = $stmt->fetch();
+    if (!is_array($row)) {
+        throw new RuntimeException("Keine aktuelle Charge fuer Produkt {$productId} vorhanden");
+    }
+
+    return [
+        'id' => (int) $row['id'],
+        'product_id' => (int) $row['product_id'],
+        'lot_number' => $row['lot_number'],
+        'status' => (string) $row['status'],
+        'next_active' => (bool) $row['next_active'],
+        'manufacturer_party_id' => $row['manufacturer_party_id'] === null ? null : (int) $row['manufacturer_party_id'],
+        'manufacturer_lot_number' => $row['manufacturer_lot_number'],
+        'manufacturer_name' => $row['manufacturer_name'],
+        'mfg_date' => $row['mfg_date'],
+        'expiry_date' => $row['expiry_date'],
+        'purchase_date' => $row['purchase_date'],
+        'qty_net' => (float) $row['qty_net'],
+        'qty_in' => (float) $row['qty_in'],
+        'qty_out' => (float) $row['qty_out'],
+    ];
+}
+
 function insert_stock_move_out(
     PDO $pdo,
     int $productId,
@@ -767,7 +1219,8 @@ function book_stock_lot_movements(
     int $lotId,
     float $receiptQty,
     float $adjustmentQty,
-    float $outQty
+    float $outQty,
+    string $changedBy
 ): void {
     $locations = get_default_location_ids($pdo);
     $balanceStmt = $pdo->prepare(
@@ -802,6 +1255,12 @@ function book_stock_lot_movements(
             insert_stock_move_adjustment($pdo, $productId, $lotId, $correctionQty, $locations['storage'], null, 'Manuelle Bestandskorrektur via Chargenformular');
         }
         $balance += $adjustmentQty;
+        ensure_current_lot_and_reconcile_virtual_shortage(
+            $pdo,
+            $productId,
+            $changedBy,
+            'Verrechnung nach manueller Bestandskorrektur'
+        );
     }
 
     if ($outQty > $balance) {
@@ -809,6 +1268,12 @@ function book_stock_lot_movements(
     }
     if ($outQty > 0) {
         insert_stock_move_out($pdo, $productId, $lotId, $outQty, $locations['storage'], $locations['dispatch'], 'Manueller Lagerabgang via Chargenformular');
+        ensure_current_lot_and_reconcile_virtual_shortage(
+            $pdo,
+            $productId,
+            $changedBy,
+            'Verrechnung nach manuellem Lagerabgang'
+        );
     }
 }
 
@@ -960,23 +1425,8 @@ function get_or_create_virtual_shortage_lot(PDO $pdo, int $productId): int
     return (int) $newLotId;
 }
 
-function get_or_create_open_lot(PDO $pdo, int $productId): int
+function create_open_lot(PDO $pdo, int $productId): int
 {
-    $select = $pdo->prepare(
-        "SELECT id
-         FROM stock_lot
-         WHERE product_id = :product_id
-           AND status = 'open'
-         ORDER BY id
-         LIMIT 1
-         FOR UPDATE"
-    );
-    $select->execute([':product_id' => $productId]);
-    $lotId = $select->fetchColumn();
-    if ($lotId !== false) {
-        return (int) $lotId;
-    }
-
     $insert = $pdo->prepare(
         "INSERT INTO stock_lot (product_id, status, created_at, updated_at)
          VALUES (:product_id, 'open', NOW(), NOW())
@@ -1103,8 +1553,7 @@ function replace_virtual_lot_allocation(
         $balanceStmt = $pdo->prepare(
             "SELECT COALESCE(v.qty_net, 0)
              FROM v_stock_lot_balance v
-             WHERE v.stock_lot_id = :lot_id
-             FOR UPDATE"
+             WHERE v.stock_lot_id = :lot_id"
         );
         $balanceStmt->execute([':lot_id' => $realLotId]);
         $available = (float) ($balanceStmt->fetchColumn() ?: 0);
@@ -1227,6 +1676,12 @@ function allocate_components_for_line(
                 throw new RuntimeException("Allokationsschutz ausgelost fuer Produkt {$productId}");
             }
 
+            ensure_current_lot_and_reconcile_virtual_shortage(
+                $pdo,
+                $productId,
+                'system',
+                "Verrechnung vor Verkaufsallokation: order={$orderId}:line={$lineNo}"
+            );
             $current = get_current_lot_balance_for_update($pdo, $productId);
             $lotId = $current['lot_id'];
             $available = $current['qty_net'];
@@ -1248,6 +1703,12 @@ function allocate_components_for_line(
                     (int) $locations['dispatch'],
                     "{$movementSource}:order={$orderId}:line={$lineNo}:product={$productId}"
                 );
+                ensure_current_lot_and_reconcile_virtual_shortage(
+                    $pdo,
+                    $productId,
+                    'system',
+                    "Verrechnung nach Verkaufsabgang: order={$orderId}:line={$lineNo}"
+                );
                 $allocationStatus = 'allocated';
             }
 

modules/shared/auth/ui/home.php

@@ -189,6 +189,30 @@ function auth_render_bestellungen_content(array $bestellungenTable): string
 
 function auth_render_lager_table(string $title, array $rows, array $columns, string $tableKey): string
 {
+    $renderForecast = static function (?string $date, string $status, ?string $expiryDate, bool $available): array {
+        if (!$available) {
+            return ['text' => '-', 'warning' => false, 'mhdWarning' => false];
+        }
+        if ($date === null || $date === '') {
+            return ['text' => 'Keine Prognose', 'warning' => false, 'mhdWarning' => false];
+        }
+        $dateObject = new DateTimeImmutable($date);
+        $text = $dateObject->format('d.m.Y');
+        if ($status === 'depleted') {
+            return ['text' => $text . ' (BESTAND ENDE)', 'warning' => true, 'mhdWarning' => false];
+        }
+        $warning = false;
+        $mhdWarning = false;
+        if ($expiryDate !== null && $expiryDate !== '') {
+            $expiryObject = new DateTimeImmutable($expiryDate);
+            $warning = $dateObject >= $expiryObject->modify('-3 months') && $dateObject <= $expiryObject;
+            $mhdWarning = $dateObject > $expiryObject;
+            if ($warning || $mhdWarning) {
+                $text .= ' (MHD: ' . $expiryObject->format('d.m.Y') . ')';
+            }
+        }
+        return ['text' => $text, 'warning' => $warning, 'mhdWarning' => $mhdWarning];
+    };
     $html = [];
     $html[] = '<article class="sg-card sg-large-table sg-large-table--lager" data-component="large-table" data-lager-table="true" data-lager-table-key="' . auth_escape_html($tableKey) . '" role="table" aria-label="' . auth_escape_html($title) . '">';
     $html[] = '<div class="sg-card-segment sg-card-segment--header sg-card-segment--darkblue sg-large-table__title-segment" data-component-part="large-table-header"><div class="sg-strong">' . auth_escape_html($title) . '</div></div>';
@@ -209,40 +233,31 @@ function auth_render_lager_table(string $title, array $rows, array $columns, str
         $value = $tableKey === 'products'
             ? (string) max(0, (int) round((float) ($row['available_qty'] ?? 0)))
             : (string) ($row['item_code'] ?? '');
-        $forecastText = '';
-        $forecastWarning = false;
-        $forecastMhdWarning = false;
+        $currentForecast = ['text' => '', 'warning' => false, 'mhdWarning' => false];
+        $nextForecast = ['text' => '-', 'warning' => false, 'mhdWarning' => false];
         if ($tableKey === 'products') {
-            $forecastStatus = (string) ($row['sellout_forecast_status'] ?? 'no_demand');
-            $forecastDate = $row['sellout_date'] ?? null;
-            if ($forecastDate !== null && $forecastDate !== '') {
-                $forecastDateObject = new DateTimeImmutable((string) $forecastDate);
-                $forecastText = $forecastDateObject->format('d.m.Y');
-                if ($forecastStatus === 'depleted') {
-                    $forecastWarning = true;
-                    $forecastText .= ' (CHARGE ENDE)';
-                } elseif (!empty($row['expiry_date'])) {
-                    $expiryDate = new DateTimeImmutable((string) $row['expiry_date']);
-                    $forecastWarning = $forecastDateObject >= $expiryDate->modify('-3 months')
-                        && $forecastDateObject <= $expiryDate;
-                    $forecastMhdWarning = $forecastDateObject > $expiryDate;
-                    if ($forecastWarning || $forecastMhdWarning) {
-                        $forecastText .= ' (MHD: ' . $expiryDate->format('d.m.Y') . ')';
-                    }
-                }
-            } else {
-                $forecastText = 'Keine Prognose';
-            }
+            $currentForecast = $renderForecast(
+                $row['sellout_date'] ?? null,
+                (string) ($row['sellout_forecast_status'] ?? 'no_demand'),
+                $row['expiry_date'] ?? null,
+                true
+            );
+            $nextForecast = $renderForecast(
+                $row['next_sellout_date'] ?? null,
+                (string) ($row['next_sellout_forecast_status'] ?? 'no_demand'),
+                $row['next_expiry_date'] ?? null,
+                $row['next_lot_id'] !== null
+            );
         }
         $nameData = ' data-lager-drawer-name="' . auth_escape_html($name) . '"';
         $valueData = ' data-lager-drawer-value="' . auth_escape_html($value) . '"';
         $typeData = ' data-lager-drawer-type="' . auth_escape_html($tableKey === 'products' ? 'Produkt' : 'Artikel') . '"';
         $detailData = '';
         if ($tableKey === 'products') {
-            $detailData = ' data-lager-drawer-forecast="' . auth_escape_html($forecastText) . '"'
-                . ' data-lager-drawer-forecast-status="' . auth_escape_html($forecastStatus) . '"'
-                . ' data-lager-drawer-forecast-warning="' . ($forecastWarning ? 'true' : 'false') . '"'
-                . ' data-lager-drawer-forecast-mhd-warning="' . ($forecastMhdWarning ? 'true' : 'false') . '"'
+            $detailData = ' data-lager-drawer-forecast="' . auth_escape_html($currentForecast['text']) . '"'
+                . ' data-lager-drawer-forecast-status="' . auth_escape_html((string) ($row['sellout_forecast_status'] ?? 'no_demand')) . '"'
+                . ' data-lager-drawer-forecast-warning="' . ($currentForecast['warning'] ? 'true' : 'false') . '"'
+                . ' data-lager-drawer-forecast-mhd-warning="' . ($currentForecast['mhdWarning'] ? 'true' : 'false') . '"'
                 . ' data-lager-drawer-current-qty="' . auth_escape_html(auth_format_lager_quantity((float) ($row['current_qty'] ?? 0))) . '"'
                 . ' data-lager-drawer-qty-in="' . auth_escape_html(auth_format_lager_quantity((float) ($row['qty_in'] ?? 0))) . '"'
                 . ' data-lager-drawer-virtual-shortage-qty="' . auth_escape_html(auth_format_lager_quantity((float) ($row['virtual_shortage_qty'] ?? 0))) . '"'
@@ -254,7 +269,6 @@ function auth_render_lager_table(string $title, array $rows, array $columns, str
                 . ' data-lager-drawer-mfg-date="' . auth_escape_html((string) ($row['mfg_date'] ?? '')) . '"'
                 . ' data-lager-drawer-expiry-date="' . auth_escape_html((string) ($row['expiry_date'] ?? '')) . '"'
                 . ' data-lager-drawer-purchase-date="' . auth_escape_html((string) ($row['purchase_date'] ?? '')) . '"'
-                . ' data-lager-drawer-documents="' . auth_escape_html((string) json_encode($row['documents'] ?? [], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES)) . '"'
                 . ' data-lager-drawer-virtual-lot-number="' . auth_escape_html((string) ($row['virtual_lot_number'] ?? '')) . '"';
             $openLot = $row['open_lots'][0] ?? [];
             $detailData .= ' data-lager-open-lot-id="' . auth_escape_html((string) ($openLot['lot_id'] ?? '')) . '"'
@@ -270,10 +284,15 @@ function auth_render_lager_table(string $title, array $rows, array $columns, str
         $html[] = '<div class="sg-large-table__cell" role="cell"><a class="sg-hyperlink" href="#" aria-haspopup="dialog" aria-expanded="false" data-lager-drawer-open="true"' . $nameData . $valueData . $typeData . $detailData . '>' . auth_escape_html($name) . '</a></div>';
         $html[] = '<div class="sg-large-table__cell" role="cell"><a class="sg-hyperlink" href="#" aria-haspopup="dialog" aria-expanded="false" data-lager-drawer-open="true"' . $nameData . $valueData . $typeData . $detailData . '>' . auth_escape_html($value) . '</a></div>';
         if ($tableKey === 'products') {
-            $forecastClass = $forecastWarning
+            $forecastClass = $currentForecast['warning']
                 ? ' sg-strong lager-forecast-warning'
-                : ($forecastMhdWarning ? ' sg-strong lager-forecast-mhd-warning' : '');
-            $html[] = '<div class="sg-large-table__cell' . $forecastClass . '" role="cell">' . auth_escape_html($forecastText) . '</div>';
+                : ($currentForecast['mhdWarning'] ? ' sg-strong lager-forecast-mhd-warning' : '');
+            $nextForecastClass = $nextForecast['warning']
+                ? ' sg-strong lager-forecast-warning'
+                : ($nextForecast['mhdWarning'] ? ' sg-strong lager-forecast-mhd-warning' : '');
+            $html[] = '<div class="sg-large-table__cell' . $forecastClass . '" role="cell">' . auth_escape_html($currentForecast['text']) . '</div>';
+            $html[] = '<div class="sg-large-table__cell" role="cell">' . auth_escape_html((string) max(0, (int) round((float) ($row['next_qty'] ?? 0)))) . '</div>';
+            $html[] = '<div class="sg-large-table__cell' . $nextForecastClass . '" role="cell">' . auth_escape_html($nextForecast['text']) . '</div>';
         }
         $html[] = '</div>';
     }
@@ -298,48 +317,12 @@ function auth_format_lager_quantity(float $value): string
         : number_format($value, 2, ',', '.');
 }
 
-function auth_render_lager_documents(array $documents, bool $editable, string $scope): string
-{
-    $segmentClass = $editable ? ' sg-card-segment--gray' : '';
-    $segmentState = $editable ? ' hidden data-lager-edit-documents="' . auth_escape_html($scope) . '"' : '';
-    $html = '<div class="sg-card-segment sg-card-segment--body' . $segmentClass . '" data-lager-documents="' . auth_escape_html($scope) . '"' . $segmentState . '>';
-    if ($editable) {
-        $html .= '<div class="sg-form-sections-card-wrapper" data-pattern="form-sections" aria-label="Dokumente"><section class="sg-form-sections-card"><div class="sg-form-sections-card__body"><section class="sg-form-sections-card__chapter"><h2 class="sg-strong sg-form-sections-card__chapter-title">Dokumente</h2>';
-    } else {
-        $html .= '<section class="sg-form-sections-card__chapter"><h2 class="sg-strong sg-form-sections-card__chapter-title">Dokumente</h2>';
-    }
-    if (!$editable) {
-        $html .= '<div data-lager-documents-read="' . auth_escape_html($scope) . '">';
-        if ($documents === []) {
-            $html .= '<p class="sg-body">Keine Dokumente vorhanden.</p>';
-        } else {
-            foreach ($documents as $document) {
-                $documentId = (int) ($document['id'] ?? 0);
-                $filename = (string) ($document['original_filename'] ?? 'Dokument');
-                $html .= '<p class="sg-body" data-lager-document-row="' . $documentId . '"><a class="sg-hyperlink" href="/api/lager-document.php?id=' . $documentId . '" data-component="hyperlink">' . auth_escape_html($filename) . '</a></p>';
-            }
-        }
-        $html .= '</div>';
-    }
-    if ($editable) {
-        $html .= '<div data-lager-documents-edit="' . auth_escape_html($scope) . '">';
-        foreach ($documents as $document) {
-            $documentId = (int) ($document['id'] ?? 0);
-            $filename = (string) ($document['original_filename'] ?? 'Dokument');
-            $html .= '<div class="sg-form-sections-card__field-group" data-lager-document-edit-row="' . $documentId . '"><span class="sg-body">' . auth_escape_html($filename) . ' <span class="sg-tab-button-group" role="tablist" aria-label="Dokument entfernen" data-component="tab-navigation" data-component-size="compact"><button class="sg-interaction-element sg-button sg-tab-button sg-tab-button--compact" type="button" role="tab" aria-selected="false" data-component-part="tab-button" aria-label="Dokument entfernen: ' . auth_escape_html($filename) . '" data-lager-document-delete="' . $documentId . '">×</button></span></span></div>';
-        }
-        $html .= '<div class="sg-file-upload" data-pattern="file-upload" data-lager-document-upload-form="' . auth_escape_html($scope) . '"><div class="sg-file-input" data-component="file-input"><div class="sg-file-upload__dropzone sg-labeled-input-row"><label class="sg-label" for="lager-document-file-' . auth_escape_html($scope) . '">Dateien auswählen</label><input class="sg-file-input__control" id="lager-document-file-' . auth_escape_html($scope) . '" type="file" multiple aria-describedby="lager-document-file-status-' . auth_escape_html($scope) . '" data-lager-document-file><button class="sg-interaction-element sg-button sg-button--active sg-file-input__trigger" type="button" data-lager-document-file-trigger>Dateien auswählen</button></div></div><ul class="sg-file-upload__files" data-lager-document-selected-files hidden></ul><p class="sg-body sg-file-upload__status" id="lager-document-file-status-' . auth_escape_html($scope) . '" data-lager-document-status aria-live="polite">Noch keine Dateien ausgewählt.</p></div>';
-        $html .= '</div>';
-    }
-    return $html . ($editable ? '</section></div></section></div></div>' : '</section></div>');
-}
-
 function auth_render_lager_historical_lots(array $lagerProducts): string
 {
     $html = [];
     foreach ($lagerProducts as $product) {
         $productId = (int) ($product['id'] ?? 0);
-        $html[] = '<div data-lager-historical-product="' . $productId . '" hidden>';
+        $html[] = '<div data-lager-historical-product="' . $productId . '" hidden><div class="sg-content-group-box" data-component="content-group-box">';
         foreach (($product['historical_lots'] ?? []) as $lot) {
             $qtyNet = (float) ($lot['qty_net'] ?? 0);
             $emptyDate = $qtyNet <= 0 ? auth_format_lager_date($lot['last_out_at'] ?? null) : 'Nicht eindeutig';
@@ -355,11 +338,9 @@ function auth_render_lager_historical_lots(array $lagerProducts): string
                 . '<strong>MHD:</strong> ' . auth_format_lager_date($lot['expiry_date'] ?? null) . '<br>'
                 . '<strong>Hersteller:</strong> ' . auth_escape_html((string) ($lot['manufacturer_name'] ?? 'Nicht hinterlegt')) . '<br>'
                 . '<strong>Hersteller-Chargennummer:</strong> ' . auth_escape_html((string) ($lot['manufacturer_lot_number'] ?? 'Nicht hinterlegt')) . '</p>'
-                . '</div>'
-                . auth_render_lager_documents($lot['documents'] ?? [], false, 'historical-' . (int) ($lot['lot_id'] ?? 0))
-                . '</article>';
+                . '</div></article>';
         }
-        $html[] = '</div>';
+        $html[] = '</div></div>';
     }
 
     return implode('', $html);
@@ -370,12 +351,22 @@ function auth_render_lager_open_lots(array $lagerProducts, string $manufacturerO
     $html = [];
     foreach ($lagerProducts as $product) {
         $productId = (int) ($product['id'] ?? 0);
-        $html[] = '<div data-lager-open-product="' . $productId . '" hidden>';
+        $html[] = '<div data-lager-open-product="' . $productId . '" hidden><div class="sg-content-group-box" data-component="content-group-box" data-lager-open-lot-list>';
         foreach (($product['open_lots'] ?? []) as $lot) {
             $lotId = (int) ($lot['lot_id'] ?? 0);
-            $html[] = '<div class="sg-delete-confirmation-pattern__stage sg-delete-confirmation-pattern__host" data-pattern="overlay-card" data-dialog-open="false" data-lager-open-card-wrapper="' . $lotId . '"><article class="sg-card sg-card--content-card sg-delete-confirmation-pattern__target" data-component="content-card" data-pattern="overlay-card" aria-label="Offene Charge">'
-                . '<div class="sg-card-segment sg-card-segment--header sg-card-segment--darkgreen sg-object-card__header" data-component-part="card-header"><div class="sg-strong sg-text-on-dark">Offene Charge</div><div class="sg-component-row"><button class="sg-interaction-element sg-button sg-button--warning" type="button" data-component="button" data-component-variant="warning" data-lager-open-delete>Löschen</button><button class="sg-interaction-element sg-button sg-button--active" type="button" data-lager-open-edit-open>Bearbeiten</button></div></div>'
-                . '<div class="sg-card-segment sg-card-segment--body" data-component-part="card-body" data-lager-open-card="' . (int) ($lot['lot_id'] ?? 0) . '"><p class="sg-body"><strong>Naurua-Chargennummer:</strong> <span data-lager-open-card-lot-number>' . auth_escape_html((string) ($lot['lot_number'] ?? 'Nicht hinterlegt')) . '</span><br>'
+            $selectedClass = !empty($lot['next_active']) ? ' sg-lager-open-lot--next-active' : '';
+            $selectedText = !empty($lot['next_active']) ? 'Als nächste aktive Charge ausgewählt' : 'Nicht ausgewählt';
+            $isQualified = trim((string) ($lot['lot_number'] ?? '')) !== ''
+                && (int) ($lot['manufacturer_party_id'] ?? 0) > 0
+                && trim((string) ($lot['manufacturer_lot_number'] ?? '')) !== ''
+                && trim((string) ($lot['mfg_date'] ?? '')) !== ''
+                && trim((string) ($lot['expiry_date'] ?? '')) !== ''
+                && trim((string) ($lot['purchase_date'] ?? '')) !== ''
+                && (float) ($lot['qty_net'] ?? 0) > 0;
+            $selectButton = '<button class="sg-interaction-element sg-button sg-button--active" type="button" data-lager-open-select data-lager-open-selectable="' . ($isQualified ? 'true' : 'false') . '"' . ($isQualified && empty($lot['next_active']) ? '' : ' disabled aria-disabled="true"') . '>Als nächste aktive auswählen</button>';
+            $html[] = '<div class="sg-delete-confirmation-pattern__stage sg-delete-confirmation-pattern__host' . $selectedClass . '" data-pattern="overlay-card" data-dialog-open="false" data-lager-open-card-wrapper="' . $lotId . '"><article class="sg-card sg-card--content-card sg-delete-confirmation-pattern__target" data-component="content-card" data-pattern="overlay-card" aria-label="Offene Charge">'
+                . '<div class="sg-card-segment sg-card-segment--header sg-card-segment--darkgreen sg-object-card__header" data-component-part="card-header"><div class="sg-strong sg-text-on-dark">Offene Charge</div><div class="sg-component-row">' . $selectButton . '<button class="sg-interaction-element sg-button sg-button--warning" type="button" data-component="button" data-component-variant="warning" data-lager-open-delete>Löschen</button><button class="sg-interaction-element sg-button sg-button--active" type="button" data-lager-open-edit-open>Bearbeiten</button></div></div>'
+                . '<div class="sg-card-segment sg-card-segment--body" data-component-part="card-body" data-lager-open-card="' . (int) ($lot['lot_id'] ?? 0) . '"><p class="sg-body"><strong>Auswahl:</strong> <span data-lager-open-card-next-active>' . auth_escape_html($selectedText) . '</span><br><strong>Naurua-Chargennummer:</strong> <span data-lager-open-card-lot-number>' . auth_escape_html((string) ($lot['lot_number'] ?? 'Nicht hinterlegt')) . '</span><br>'
                 . '<strong>Status:</strong> Vorbereitet<br>'
                 . '<strong>Bestand:</strong> <span data-lager-open-card-qty-net>' . auth_format_lager_quantity((float) ($lot['qty_net'] ?? 0)) . '</span><br>'
                 . '<strong>Eingangsmenge:</strong> <span data-lager-open-card-qty-in>' . auth_format_lager_quantity((float) ($lot['qty_in'] ?? 0)) . '</span><br>'
@@ -384,8 +375,7 @@ function auth_render_lager_open_lots(array $lagerProducts, string $manufacturerO
                 . '<strong>Herstellungsdatum:</strong> <span data-lager-open-card-mfg-date>' . auth_format_lager_date($lot['mfg_date'] ?? null) . '</span><br>'
                 . '<strong>MHD:</strong> <span data-lager-open-card-expiry-date>' . auth_format_lager_date($lot['expiry_date'] ?? null) . '</span><br>'
                 . '<strong>Einkaufsdatum:</strong> <span data-lager-open-card-purchase-date>' . auth_format_lager_date($lot['purchase_date'] ?? null) . '</span></p></div>'
-                . auth_render_lager_documents($lot['documents'] ?? [], false, 'open-read-' . $lotId)
-                . '<div class="sg-card-segment sg-card-segment--body sg-card-segment--gray" data-lager-open-edit-form hidden><div class="sg-form-sections-card-wrapper" data-pattern="form-sections" aria-label="Offene Charge bearbeiten"><form class="sg-form-sections-card" id="lager-open-edit-form-' . $lotId . '" data-lager-open-edit-form-element><div class="sg-form-sections-card__body" data-pattern-part="form-body"><h2 class="sg-strong sg-form-sections-card__title">Offene Charge bearbeiten</h2>'
+                . '<div class="sg-card-segment sg-card-segment--body sg-card-segment--gray" data-lager-open-edit-form hidden><div class="sg-form-sections-card-wrapper" data-pattern="form-sections" aria-label="Offene Charge bearbeiten"><form class="sg-form-sections-card" data-lager-open-edit-form-element><div class="sg-form-sections-card__body" data-pattern-part="form-body"><h2 class="sg-strong sg-form-sections-card__title">Offene Charge bearbeiten</h2>'
                 . '<section class="sg-form-sections-card__chapter" aria-labelledby="lager-open-charge-data-' . $lotId . '"><h2 id="lager-open-charge-data-' . $lotId . '" class="sg-strong sg-form-sections-card__chapter-title">Chargendaten</h2>'
                 . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Naurua-Chargennummer</span><input class="sg-interaction-element sg-input-single-line" type="text" data-lager-open-lot-number value="' . auth_escape_html((string) ($lot['lot_number'] ?? '')) . '"></label></div>'
                 . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Hersteller</span><select class="sg-interaction-element sg-input-single-line" data-lager-open-manufacturer>' . str_replace('value="' . (int) ($lot['manufacturer_party_id'] ?? 0) . '"', 'value="' . (int) ($lot['manufacturer_party_id'] ?? 0) . '" selected', $manufacturerOptions) . '</select></label></div>'
@@ -394,14 +384,11 @@ function auth_render_lager_open_lots(array $lagerProducts, string $manufacturerO
                 . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">MHD</span><input class="sg-interaction-element sg-input-single-line" type="date" data-lager-open-expiry-date value="' . auth_escape_html((string) ($lot['expiry_date'] ?? '')) . '"></label></div>'
                 . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Einkaufsdatum</span><input class="sg-interaction-element sg-input-single-line" type="date" data-lager-open-purchase-date value="' . auth_escape_html((string) ($lot['purchase_date'] ?? '')) . '"></label></div>'
                 . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Menge</span><input class="sg-interaction-element sg-input-single-line" type="number" min="0" step="1" inputmode="numeric" data-lager-open-target-qty value="' . auth_escape_html((string) ($lot['qty_net'] ?? 0)) . '"></label></div>'
-                . '</section></div></form></div></div>'
-                . auth_render_lager_documents($lot['documents'] ?? [], true, 'open-edit-' . $lotId)
-                . '<footer class="sg-card-segment sg-card-segment--body sg-card-segment--gray" data-lager-open-edit-actions hidden><div class="sg-form-sections-card-wrapper" data-pattern="form-sections"><div class="sg-form-sections-card"><div class="sg-form-sections-card__actions" data-pattern-part="form-actions"><button class="sg-interaction-element sg-button sg-button--active sg-form-sections-card__action" type="button" data-lager-open-edit-close>Abbrechen</button><button class="sg-interaction-element sg-button sg-button--process sg-form-sections-card__action" type="submit" form="lager-open-edit-form-' . $lotId . '">Speichern</button></div><p class="sg-body" data-lager-open-edit-status aria-live="polite"></p></div></div></footer>'
-                . '</article>'
+                . '</section><footer class="sg-form-sections-card__actions-segment" data-pattern-part="form-actions-segment"><div class="sg-form-sections-card__actions" data-pattern-part="form-actions"><button class="sg-interaction-element sg-button sg-button--active sg-form-sections-card__action" type="button" data-lager-open-edit-close>Abbrechen</button><button class="sg-interaction-element sg-button sg-button--process sg-form-sections-card__action" type="submit">Speichern</button></div></footer><p class="sg-body" data-lager-open-edit-status aria-live="polite"></p></div></form></div></div></article>'
                 . '<article class="sg-card sg-card--overlay-host sg-delete-confirmation-pattern__floating-card" aria-label="Leere Felder bestätigen" role="dialog" aria-modal="true" aria-labelledby="lager-open-confirmation-title-' . $lotId . '" data-lager-open-confirmation-card hidden><div class="sg-card-segment sg-card-segment--body sg-delete-confirmation-pattern__body"><p class="sg-body sg-delete-confirmation-pattern__text" id="lager-open-confirmation-title-' . $lotId . '"><strong>Leere Felder speichern?</strong></p><p class="sg-body sg-delete-confirmation-pattern__text">Die folgenden Felder werden leer gespeichert:</p><div class="sg-delete-confirmation-pattern__list" data-lager-open-confirmation-empty-fields aria-label="Leer zu speichernde Felder"></div><div class="sg-delete-confirmation-pattern__actions"><button class="sg-interaction-element sg-button sg-button--active" type="button" data-lager-open-confirmation-cancel>Abbrechen</button><button class="sg-interaction-element sg-button sg-button--process" type="button" data-lager-open-confirmation-submit>Speichern</button></div></div></article>'
                 . '<article class="sg-card sg-card--overlay-host sg-delete-confirmation-pattern__floating-card" aria-label="Löschbestätigung" role="dialog" aria-modal="true" aria-labelledby="lager-open-delete-title-' . $lotId . '" data-overlay-dialog="delete" data-lager-open-delete-confirmation hidden><div class="sg-card-segment sg-card-segment--body sg-delete-confirmation-pattern__body"><p class="sg-body sg-delete-confirmation-pattern__text" id="lager-open-delete-title-' . $lotId . '"><strong>Möchtest du diese offene Charge wirklich löschen?</strong></p><p class="sg-body sg-delete-confirmation-pattern__text">Du kannst das nicht rückgängig machen. Bestätige durch Eingabe von <span class="sg-delete-confirmation-pattern__code">DELETE</span>.</p><label class="sg-labeled-input-row sg-delete-confirmation-pattern__input-row"><span class="sg-label">Bestätigung</span><input class="sg-interaction-element sg-input-single-line sg-input-single-line--inactive-selectable sg-form-inactive-selectable" type="text" placeholder="DELETE" aria-label="Löschbestätigung durch DELETE" data-lager-open-delete-confirmation-input></label><p class="sg-body" data-lager-open-delete-status aria-live="polite"></p><div class="sg-delete-confirmation-pattern__actions"><button class="sg-interaction-element sg-button sg-button--active" type="button" data-lager-open-delete-confirmation-cancel>Abbrechen</button><button class="sg-interaction-element sg-button sg-button--process sg-button--process-inactive" type="button" disabled aria-disabled="true" data-lager-open-delete-confirmation-submit>Löschen</button></div></div></article></div>';
         }
-        $html[] = '</div>';
+        $html[] = '</div></div>';
     }
 
     return implode('', $html);
@@ -415,8 +402,24 @@ function auth_render_lager_content(array $lagerProducts, array $lagerArtikel, ar
     }
 
     $tables = $sectionTitle === 'Lager'
-        ? auth_render_lager_table('Produkte', $lagerProducts, ['Produktname', 'Anzahl im Lager', 'Verbraucht bis'], 'products')
+        ? auth_render_lager_table('Produkte', $lagerProducts, ['Produktname', 'Lager aktuell', 'Verkauf bis aktuell', 'Lager neu', 'Verkauf bis neu'], 'products')
         : auth_render_lager_table('Artikel', $lagerArtikel, ['Artikel-Name', 'Artikelnummer'], 'articles');
+    $openLotCardTemplate = auth_render_lager_open_lots([[
+        'id' => 0,
+        'open_lots' => [[
+            'lot_id' => 0,
+            'lot_number' => null,
+            'manufacturer_party_id' => null,
+            'manufacturer_name' => null,
+            'manufacturer_lot_number' => null,
+            'mfg_date' => null,
+            'expiry_date' => null,
+            'purchase_date' => null,
+            'qty_net' => 0,
+            'qty_in' => 0,
+            'next_active' => false,
+        ]],
+    ]], $manufacturerOptions);
 
     return '<div data-lager-content="true" data-lager-csrf-token="' . auth_escape_html($csrfToken) . '">'
         . '<section class="sg-card-list-page" aria-label="' . auth_escape_html($sectionTitle) . '">'
@@ -439,7 +442,7 @@ function auth_render_lager_content(array $lagerProducts, array $lagerArtikel, ar
         . '<div class="sg-card-segment sg-card-segment--body sg-card-segment--gray"><div class="sg-form-sections-card-wrapper" data-pattern="form-sections" aria-label="Neue Charge anlegen"><form class="sg-form-sections-card" data-lager-new-lot-form-element><div class="sg-form-sections-card__body" data-pattern-part="form-body"><h2 class="sg-strong sg-form-sections-card__title">Neue Charge anlegen</h2>'
         . '<div class="sg-notifications-pattern" data-lager-new-lot-notification-wrapper hidden><article class="sg-card sg-notifications-pattern__card" data-pattern="notification-small" data-component="notification-card"><div class="sg-card-segment sg-card-segment--header sg-card-segment--signal-green sg-notifications-pattern__text-segment sg-notifications-pattern__text-segment--small" data-component-part="card-header"><p class="sg-body" data-lager-new-lot-notification></p></div></article></div>'
         . '<section class="sg-form-sections-card__chapter" aria-labelledby="lager-new-charge-data-title"><h2 id="lager-new-charge-data-title" class="sg-strong sg-form-sections-card__chapter-title">Chargendaten</h2>'
-        . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Naurua-Chargennummer</span><input class="sg-interaction-element sg-input-single-line" type="text" data-lager-new-lot-number required></label></div>'
+        . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Naurua-Chargennummer</span><input class="sg-interaction-element sg-input-single-line" type="text" data-lager-new-lot-number></label></div>'
         . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Hersteller</span><select class="sg-interaction-element sg-input-single-line" data-lager-new-manufacturer>' . $manufacturerOptions . '</select></label></div>'
         . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Hersteller-Chargennummer</span><input class="sg-interaction-element sg-input-single-line" type="text" data-lager-new-manufacturer-lot></label></div>'
         . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Herstellungsdatum</span><input class="sg-interaction-element sg-input-single-line" type="date" data-lager-new-mfg-date></label></div>'
@@ -447,13 +450,15 @@ function auth_render_lager_content(array $lagerProducts, array $lagerArtikel, ar
         . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Einkaufsdatum</span><input class="sg-interaction-element sg-input-single-line" type="date" data-lager-new-purchase-date></label></div>'
         . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Eingangsmenge</span><input class="sg-interaction-element sg-input-single-line" type="number" min="0" step="1" inputmode="numeric" data-lager-new-receipt-qty placeholder="Menge"></label></div>'
         . '</section><footer class="sg-form-sections-card__actions-segment" data-pattern-part="form-actions-segment"><div class="sg-form-sections-card__actions" data-pattern-part="form-actions"><button class="sg-interaction-element sg-button sg-button--active sg-form-sections-card__action" type="button" data-lager-new-lot-close>Abbrechen</button><button class="sg-interaction-element sg-button sg-button--process sg-form-sections-card__action" type="submit">Speichern</button></div></footer><p class="sg-body" data-lager-new-lot-status aria-live="polite"></p></div></form></div></div>'
+        . '<article class="sg-card sg-card--overlay-host sg-delete-confirmation-pattern__floating-card" aria-label="Leere Felder bestätigen" role="dialog" aria-modal="true" aria-labelledby="lager-new-confirmation-title" data-lager-new-confirmation-card hidden><div class="sg-card-segment sg-card-segment--body sg-delete-confirmation-pattern__body"><p class="sg-body sg-delete-confirmation-pattern__text" id="lager-new-confirmation-title"><strong>Leere Felder speichern?</strong></p><p class="sg-body sg-delete-confirmation-pattern__text">Die folgenden Felder werden leer gespeichert:</p><div class="sg-delete-confirmation-pattern__list" data-lager-new-confirmation-empty-fields aria-label="Leer zu speichernde Felder"></div><div class="sg-delete-confirmation-pattern__actions"><button class="sg-interaction-element sg-button sg-button--active" type="button" data-lager-new-confirmation-cancel>Abbrechen</button><button class="sg-interaction-element sg-button sg-button--process" type="button" data-lager-new-confirmation-submit>Speichern</button></div></div></article>'
         . '</article>'
+        . '<template data-lager-open-lot-template>' . $openLotCardTemplate . '</template>'
         . '<div data-lager-drawer-topic="open-lots" aria-label="Offene Chargen">' . auth_render_lager_open_lots($lagerProducts, $manufacturerOptions) . '</div>'
         . '<article class="sg-card sg-card--content-card" data-component="content-card" data-lager-drawer-topic="lot" aria-label="Aktive Charge">'
         . '<div class="sg-card-segment sg-card-segment--header sg-card-segment--darkgreen sg-object-card__header" data-component-part="card-header"><div class="sg-strong sg-text-on-dark">Aktive Charge</div><button class="sg-interaction-element sg-button sg-button--active" type="button" data-lager-edit-open>Bearbeiten</button></div>'
-        . '<div class="sg-card-segment sg-card-segment--body" data-component-part="card-body" data-lager-read-view><p class="sg-body"><strong>Naurua-Chargennummer:</strong> <span data-lager-drawer-lot-number></span><br><strong>Aktueller Bestand:</strong> <span data-lager-drawer-current-qty></span><br><strong>Eingangsmenge:</strong> <span data-lager-drawer-qty-in></span><br><strong>Hersteller:</strong> <span data-lager-drawer-manufacturer-name></span><br><strong>Hersteller-Chargennummer:</strong> <span data-lager-drawer-manufacturer-lot-number></span><br><strong>Herstellungsdatum:</strong> <span data-lager-drawer-mfg-date></span><br><strong>MHD:</strong> <span data-lager-drawer-expiry-date></span><br><strong>Einkaufsdatum:</strong> <span data-lager-drawer-purchase-date></span></p></div>' . auth_render_lager_documents([], false, 'current-read')
+        . '<div class="sg-card-segment sg-card-segment--body" data-component-part="card-body" data-lager-read-view><p class="sg-body"><strong>Naurua-Chargennummer:</strong> <span data-lager-drawer-lot-number></span><br><strong>Aktueller Bestand:</strong> <span data-lager-drawer-current-qty></span><br><strong>Eingangsmenge:</strong> <span data-lager-drawer-qty-in></span><br><strong>Hersteller:</strong> <span data-lager-drawer-manufacturer-name></span><br><strong>Hersteller-Chargennummer:</strong> <span data-lager-drawer-manufacturer-lot-number></span><br><strong>Herstellungsdatum:</strong> <span data-lager-drawer-mfg-date></span><br><strong>MHD:</strong> <span data-lager-drawer-expiry-date></span><br><strong>Einkaufsdatum:</strong> <span data-lager-drawer-purchase-date></span></p></div>'
         . '<div class="sg-card-segment sg-card-segment--body sg-card-segment--gray" data-lager-edit-form hidden><div class="sg-form-sections-card-wrapper" data-pattern="form-sections" aria-label="Aktive Charge bearbeiten">'
-        . '<form class="sg-form-sections-card" id="lager-edit-form" data-lager-edit-form-element><div class="sg-form-sections-card__body" data-pattern-part="form-body"><h2 class="sg-strong sg-form-sections-card__title">Aktive Charge bearbeiten</h2>'
+        . '<form class="sg-form-sections-card" data-lager-edit-form-element><div class="sg-form-sections-card__body" data-pattern-part="form-body"><h2 class="sg-strong sg-form-sections-card__title">Aktive Charge bearbeiten</h2>'
         . '<section class="sg-form-sections-card__chapter" aria-labelledby="lager-charge-traceability-title"><h2 id="lager-charge-traceability-title" class="sg-strong sg-form-sections-card__chapter-title">Rückverfolgbarkeit</h2>'
         . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Naurua-Chargennummer</span><input class="sg-interaction-element sg-input-single-line sg-form-inactive-selectable" type="text" data-lager-lot-number readonly></label></div>'
         . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Hersteller</span><select class="sg-interaction-element sg-input-single-line" id="lager-manufacturer" data-lager-manufacturer>' . $manufacturerOptions . '</select></label></div>'
@@ -466,14 +471,13 @@ function auth_render_lager_content(array $lagerProducts, array $lagerArtikel, ar
         . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Zugang buchen</span><input class="sg-interaction-element sg-input-single-line" type="number" min="0" step="0.01" inputmode="decimal" data-lager-receipt-qty placeholder="Menge"></label></div>'
         . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Bestandskorrektur (+ / −)</span><input class="sg-interaction-element sg-input-single-line" type="number" step="1" inputmode="numeric" data-lager-adjustment-qty placeholder="+ / − Menge"></label></div>'
         . '<div class="sg-form-sections-card__field-group"><label class="sg-labeled-input-row"><span class="sg-label">Abgang buchen</span><input class="sg-interaction-element sg-input-single-line" type="number" min="0" step="0.01" inputmode="decimal" data-lager-out-qty placeholder="Menge"></label></div>'
-        . '</section></div></form></div></div>'
-        . auth_render_lager_documents([], true, 'current-edit')
-        . '<footer class="sg-card-segment sg-card-segment--body sg-card-segment--gray" data-lager-edit-actions hidden><div class="sg-form-sections-card-wrapper" data-pattern="form-sections"><div class="sg-form-sections-card"><div class="sg-form-sections-card__actions" data-pattern-part="form-actions"><button class="sg-interaction-element sg-button sg-button--active sg-form-sections-card__action" type="button" data-lager-edit-close>Abbrechen</button><button class="sg-interaction-element sg-button sg-button--process sg-form-sections-card__action" type="submit" form="lager-edit-form">Speichern</button></div><p class="sg-body" data-lager-edit-status aria-live="polite"></p></div></div></footer>'
+        . '</section><footer class="sg-form-sections-card__actions-segment" data-pattern-part="form-actions-segment"><div class="sg-form-sections-card__actions" data-pattern-part="form-actions"><button class="sg-interaction-element sg-button sg-button--active sg-form-sections-card__action" type="button" data-lager-edit-close>Abbrechen</button><button class="sg-interaction-element sg-button sg-button--process sg-form-sections-card__action" type="submit">Speichern</button></div></footer><p class="sg-body" data-lager-edit-status aria-live="polite"></p></div></form>'
+        . '</div></div>'
         . '</article>'
         . '<div data-lager-drawer-topic="historical-lots" aria-label="Vergangene Chargen">' . auth_render_lager_historical_lots($lagerProducts) . '</div>'
         . '<article class="sg-card sg-card--content-card" data-component="content-card" data-lager-drawer-topic="virtual-lot" aria-label="Virtuelle Charge">'
         . '<div class="sg-card-segment sg-card-segment--header sg-card-segment--darkgreen" data-component-part="card-header"><div class="sg-strong sg-text-on-dark">Virtuelle Charge</div></div>'
-        . '<div class="sg-card-segment sg-card-segment--body" data-component-part="card-body"><p class="sg-body" data-lager-drawer-virtual-lot-value></p></div>'
+        . '<div class="sg-card-segment sg-card-segment--body" data-component-part="card-body"><p class="sg-body"><span data-lager-drawer-virtual-lot-value></span><br><span data-lager-drawer-virtual-lot-qty></span></p></div>'
         . '</article>'
         . '</div>'
         . '</aside>'
@@ -846,55 +850,49 @@ function render_auth_home_page(array $user, array $otcProducts = [], array $best
     echo "    restoreLagerMobileDetail();";
     echo "  };";
     echo "  const getDrawer = () => document.querySelector('[data-lager-mobile-drawer]') || contentRoot.querySelector('[data-lager-drawer]');";
+    echo "  document.addEventListener('click', (event) => { const trigger = event.target.closest('[data-lager-drawer-open][data-lager-drawer-type=\"Produkt\"]'); if (!trigger) { return; } const drawer = getDrawer(); const lotValue = drawer?.querySelector('[data-lager-drawer-virtual-lot-value]'); const qtyValue = drawer?.querySelector('[data-lager-drawer-virtual-lot-qty]'); if (lotValue) { lotValue.textContent = trigger.dataset.lagerDrawerVirtualLotNumber ? 'Virtuelle Charge: ' + trigger.dataset.lagerDrawerVirtualLotNumber : 'Keine virtuelle Fehlbestandscharge vorhanden.'; } if (qtyValue) { qtyValue.textContent = 'Bereits virtuell verkauft: ' + (trigger.dataset.lagerDrawerVirtualShortageQty || '0'); } });";
     echo "  const setDrawerState = (open) => {";
     echo "    const drawer = getDrawer(); const backdrop = contentRoot.querySelector('[data-lager-drawer-backdrop]');";
     echo "    if (!drawer || !backdrop) { return; }";
     echo "    drawer.dataset.open = String(open); drawer.setAttribute('aria-hidden', String(!open)); backdrop.dataset.open = String(open); backdrop.setAttribute('aria-hidden', String(!open)); document.body.classList.toggle('sg-card-list-page-drawer-open', open);";
     echo "  };";
-    echo "  const getLagerWarningTitle = (trigger) => trigger.dataset.lagerDrawerForecastStatus === 'depleted' ? 'Warnung: Charge ist aufgebraucht' : (trigger.dataset.lagerDrawerForecastMhdWarning === 'true' ? 'Warnung: MHD wird vor Chargenende erreicht' : (trigger.dataset.lagerDrawerForecastWarning === 'true' ? 'Warnung: Charge wird innerhalb von drei Monaten aufgebraucht sein' : 'Keine Warnung'));";
-    echo "  const escapeLagerHtml = (value) => String(value ?? '').replace(/[&<>\"']/g, (character) => ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '\"': '&quot;', \"'\": '&#39;' }[character] || character));";
-    echo "  const renderLagerDocumentRows = (documents, editable) => { if (!documents.length) { return '<p class=\"sg-body\">Keine Dokumente vorhanden.</p>'; } return documents.map((document) => { const id = Number(document.id || 0); const filename = escapeLagerHtml(document.original_filename || 'Dokument'); if (!editable) { return '<p class=\"sg-body\" data-lager-document-row=\"' + id + '\"><a class=\"sg-hyperlink\" href=\"/api/lager-document.php?id=' + id + '\" data-component=\"hyperlink\">' + filename + '</a></p>'; } return '<div class=\"sg-form-sections-card__field-group\" data-lager-document-edit-row=\"' + id + '\"><span class=\"sg-body\">' + filename + ' <span class=\"sg-tab-button-group\" role=\"tablist\" aria-label=\"Dokument entfernen\" data-component=\"tab-navigation\" data-component-size=\"compact\"><button class=\"sg-interaction-element sg-button sg-tab-button sg-tab-button--compact\" type=\"button\" role=\"tab\" aria-selected=\"false\" data-component-part=\"tab-button\" aria-label=\"Dokument entfernen: ' + filename + '\" data-lager-document-delete=\"' + id + '\">×</button></span></span></div>'; }).join(''); };";
-    echo "  const syncLagerDocumentViews = (root, documents) => { const read = root?.querySelector('[data-lager-documents-read]'); const edit = root?.querySelector('[data-lager-documents-edit]'); const upload = root?.querySelector('[data-lager-document-upload-form]'); if (read) { read.innerHTML = renderLagerDocumentRows(documents, false); } if (edit) { edit.innerHTML = renderLagerDocumentRows(documents, true); if (upload) { edit.appendChild(upload); } } };";
-    echo "  const syncLagerCurrentDocuments = (trigger) => { const drawer = getDrawer(); if (!drawer) { return; } let documents = []; try { documents = JSON.parse(trigger.dataset.lagerDrawerDocuments || '[]'); } catch (error) { documents = []; } syncLagerDocumentViews(drawer.querySelector('[data-lager-documents=\"current-read\"]'), documents); syncLagerDocumentViews(drawer.querySelector('[data-lager-documents=\"current-edit\"]'), documents); };";
-    echo "  const renderLagerSelectedFiles = (scope) => { const input = scope?.querySelector('[data-lager-document-file]'); const list = scope?.querySelector('[data-lager-document-selected-files]'); const status = scope?.querySelector('[data-lager-document-status]'); if (!input || !list) { return; } const files = Array.from(input.files || []); list.replaceChildren(...files.map((file, index) => { const item = document.createElement('li'); item.className = 'sg-file-upload__file'; const name = document.createElement('span'); name.className = 'sg-file-upload__file-name sg-body'; name.append(document.createTextNode(file.name + ' ')); const navigation = document.createElement('span'); navigation.className = 'sg-tab-button-group'; navigation.setAttribute('role', 'tablist'); navigation.setAttribute('aria-label', 'Datei entfernen'); navigation.dataset.component = 'tab-navigation'; navigation.dataset.componentSize = 'compact'; const remove = document.createElement('button'); remove.className = 'sg-interaction-element sg-button sg-tab-button sg-tab-button--compact sg-file-upload__remove'; remove.type = 'button'; remove.setAttribute('role', 'tab'); remove.setAttribute('aria-selected', 'false'); remove.setAttribute('data-component-part', 'tab-button'); remove.setAttribute('aria-label', 'Datei entfernen: ' + file.name); remove.dataset.lagerDocumentRemoveIndex = String(index); remove.textContent = '×'; navigation.append(remove); name.append(navigation); item.append(name); return item; })); list.hidden = files.length === 0; if (status && !status.textContent.includes('Upload') && !status.textContent.includes('hochgeladen')) { status.textContent = files.length ? files.length + ' Datei(en) ausgewählt.' : 'Noch keine Dateien ausgewählt.'; } };";
+    echo "  const getLagerWarningTitle = (trigger) => trigger.dataset.lagerDrawerForecastStatus === 'depleted' ? 'Warnung: Bestand ist aufgebraucht' : (trigger.dataset.lagerDrawerForecastMhdWarning === 'true' ? 'Warnung: MHD wird vor Bestandsende erreicht' : (trigger.dataset.lagerDrawerForecastWarning === 'true' ? 'Warnung: Bestand wird innerhalb von drei Monaten aufgebraucht sein' : 'Keine Warnung'));";
     echo "  const closeDrawer = () => { setDrawerState(false); contentRoot.querySelectorAll('[data-lager-drawer-open]').forEach((trigger) => trigger.setAttribute('aria-expanded', 'false')); };";
-    echo "  document.addEventListener('click', (event) => { const trigger = event.target.closest('[data-lager-drawer-open]'); if (!trigger || trigger.dataset.lagerDrawerType !== 'Produkt') { return; } const drawer = getDrawer(); const forecast = drawer?.querySelector('[data-lager-drawer-forecast-value]'); if (forecast) { forecast.textContent = trigger.dataset.lagerDrawerForecast || 'Keine Prognose'; } syncLagerCurrentDocuments(trigger); });";
-    echo "  const getLagerForecastWarningText = (forecast, trigger, text) => { if (forecast?.status === 'depleted' || trigger?.dataset.lagerDrawerForecastStatus === 'depleted') { return 'Die Charge ist aufgebraucht. Voraussichtlich leer: ' + text + '.'; } if (trigger?.dataset.lagerDrawerForecastMhdWarning === 'true') { const expiry = trigger.dataset.lagerDrawerExpiryDate ? new Date(trigger.dataset.lagerDrawerExpiryDate + 'T00:00:00').toLocaleDateString('de-CH') : 'dem MHD'; return 'Das MHD wird am ' + expiry + ' erreicht, bevor das Lager leer ist. Voraussichtlich leer: ' + text + '.'; } if (trigger?.dataset.lagerDrawerForecastWarning === 'true') { return 'Voraussichtlich leer: ' + text + '.'; } return 'Keine akute Warnung.'; };";
+    echo "  document.addEventListener('click', (event) => { const trigger = event.target.closest('[data-lager-drawer-open]'); if (!trigger || trigger.dataset.lagerDrawerType !== 'Produkt') { return; } const drawer = getDrawer(); const forecast = drawer?.querySelector('[data-lager-drawer-forecast-value]'); if (forecast) { forecast.textContent = trigger.dataset.lagerDrawerForecast || 'Keine Prognose'; } });";
+    echo "  const getLagerForecastWarningText = (forecast, trigger, text) => { if (forecast?.status === 'depleted' || trigger?.dataset.lagerDrawerForecastStatus === 'depleted') { return 'Der Bestand ist aufgebraucht. Voraussichtlich leer: ' + text + '.'; } if (trigger?.dataset.lagerDrawerForecastMhdWarning === 'true') { const expiry = trigger.dataset.lagerDrawerExpiryDate ? new Date(trigger.dataset.lagerDrawerExpiryDate + 'T00:00:00').toLocaleDateString('de-CH') : 'dem MHD'; const forecastDate = forecast?.date ? new Date(forecast.date + 'T00:00:00').toLocaleDateString('de-CH') : text.replace(/\\s+\\(MHD:.*\\)$/, ''); return 'Das MHD wird am ' + expiry + ' erreicht, bevor der Bestand leer ist. Voraussichtlich leer: ' + forecastDate + '.'; } if (trigger?.dataset.lagerDrawerForecastWarning === 'true') { return 'Voraussichtlich leer: ' + text + '.'; } return 'Keine akute Warnung.'; };";
     echo "  document.addEventListener('click', (event) => { const trigger = event.target.closest('[data-lager-drawer-open]'); if (!trigger || trigger.dataset.lagerDrawerType !== 'Produkt') { return; } const drawer = getDrawer(); const warningValue = drawer?.querySelector('[data-lager-drawer-warning-value]'); if (warningValue) { warningValue.textContent = getLagerForecastWarningText(null, trigger, trigger.dataset.lagerDrawerForecast || 'Keine Prognose'); } });";
-    echo "  const syncLagerForecast = (forecast, productId) => { const drawer = getDrawer(); const trigger = contentRoot.querySelector('[data-lager-drawer-open][aria-expanded=\"true\"]') || contentRoot.querySelector('[data-lager-row][data-lager-id=\"' + (productId || '') + '\"] [data-lager-drawer-open]'); if (!forecast || !drawer) { return; } const forecastDate = forecast.date ? new Date(forecast.date + 'T00:00:00') : null; const expiryDate = forecast.expiryDate ? new Date(forecast.expiryDate + 'T00:00:00') : null; const mhdWarning = Boolean(forecastDate && expiryDate && forecastDate > expiryDate); const nearExpiryWarning = Boolean(forecastDate && expiryDate && forecastDate >= new Date(new Date(expiryDate).setMonth(expiryDate.getMonth() - 3)) && forecastDate <= expiryDate); const depleted = forecast.status === 'depleted'; const forecastWarning = depleted || nearExpiryWarning; const date = forecastDate ? forecastDate.toLocaleDateString('de-CH') : 'Keine Prognose'; const text = depleted ? date + ' (CHARGE ENDE)' : (nearExpiryWarning || mhdWarning ? date + ' (MHD: ' + expiryDate.toLocaleDateString('de-CH') + ')' : date); const value = drawer.querySelector('[data-lager-drawer-forecast-value]'); if (value) { value.textContent = text; } const header = drawer.querySelector('[data-lager-drawer-warning-header]'); const title = drawer.querySelector('[data-lager-drawer-warning-title]'); const warningValue = drawer.querySelector('[data-lager-drawer-warning-value]'); if (trigger) { trigger.dataset.lagerDrawerForecast = text; trigger.dataset.lagerDrawerForecastStatus = forecast.status || 'no_demand'; trigger.dataset.lagerDrawerForecastWarning = forecastWarning ? 'true' : 'false'; trigger.dataset.lagerDrawerForecastMhdWarning = mhdWarning ? 'true' : 'false'; if (header) { header.classList.toggle('sg-card-segment--darkgreen', !forecastWarning && !mhdWarning); header.classList.toggle('sg-card-segment--signal-red', forecastWarning); header.classList.toggle('sg-card-segment--signal-yellow', mhdWarning); } if (title) { title.textContent = getLagerWarningTitle(trigger); } if (warningValue) { warningValue.textContent = forecastWarning || mhdWarning ? text : 'Keine akute Warnung.'; warningValue.classList.toggle('sg-strong', forecastWarning || mhdWarning); warningValue.classList.toggle('lager-forecast-warning', forecastWarning); warningValue.classList.toggle('lager-forecast-mhd-warning', mhdWarning); } const row = trigger.closest('[data-lager-row]'); const cells = row?.querySelectorAll('[role=\"cell\"]'); const forecastCell = cells?.[cells.length - 1]; if (forecastCell && cells.length === 3) { forecastCell.textContent = text; } } };";
-    echo "  document.addEventListener('lager-save-complete', (event) => { const forecast = event.detail?.forecast; const productId = event.detail?.productId || ''; const trigger = contentRoot.querySelector('[data-lager-drawer-open][aria-expanded=\"true\"]') || contentRoot.querySelector('[data-lager-row][data-lager-id=\"' + productId + '\"] [data-lager-drawer-open]'); const drawer = getDrawer(); if (!forecast || !drawer) { return; } const date = forecast.date ? new Date(forecast.date + 'T00:00:00').toLocaleDateString('de-CH') : 'Keine Prognose'; const text = forecast.status === 'depleted' ? date + ' (CHARGE ENDE)' : date; const value = drawer.querySelector('[data-lager-drawer-forecast-value]'); if (value) { value.textContent = text; } if (trigger) { trigger.dataset.lagerDrawerForecast = text; const row = trigger.closest('[data-lager-row]'); const cells = row?.querySelectorAll('[role=\"cell\"]'); const forecastCell = cells?.[cells.length - 1]; if (forecastCell && cells.length === 3) { forecastCell.textContent = text; } } });";
+    echo "  const syncLagerForecast = (forecast, productId) => { const drawer = getDrawer(); const trigger = contentRoot.querySelector('[data-lager-drawer-open][aria-expanded=\"true\"]') || contentRoot.querySelector('[data-lager-row][data-lager-id=\"' + (productId || '') + '\"] [data-lager-drawer-open]'); if (!forecast || !drawer) { return; } const forecastDate = forecast.date ? new Date(forecast.date + 'T00:00:00') : null; const expiryDate = forecast.expiryDate ? new Date(forecast.expiryDate + 'T00:00:00') : null; const mhdWarning = Boolean(forecastDate && expiryDate && forecastDate > expiryDate); const nearExpiryWarning = Boolean(forecastDate && expiryDate && forecastDate >= new Date(new Date(expiryDate).setMonth(expiryDate.getMonth() - 3)) && forecastDate <= expiryDate); const depleted = forecast.status === 'depleted'; const forecastWarning = depleted || nearExpiryWarning; const date = forecastDate ? forecastDate.toLocaleDateString('de-CH') : 'Keine Prognose'; const text = depleted ? date + ' (BESTAND ENDE)' : (nearExpiryWarning || mhdWarning ? date + ' (MHD: ' + expiryDate.toLocaleDateString('de-CH') + ')' : date); const value = drawer.querySelector('[data-lager-drawer-forecast-value]'); if (value) { value.textContent = text; } const header = drawer.querySelector('[data-lager-drawer-warning-header]'); const title = drawer.querySelector('[data-lager-drawer-warning-title]'); const warningValue = drawer.querySelector('[data-lager-drawer-warning-value]'); if (trigger) { trigger.dataset.lagerDrawerForecast = text; trigger.dataset.lagerDrawerForecastStatus = forecast.status || 'no_demand'; trigger.dataset.lagerDrawerForecastWarning = forecastWarning ? 'true' : 'false'; trigger.dataset.lagerDrawerForecastMhdWarning = mhdWarning ? 'true' : 'false'; if (header) { header.classList.toggle('sg-card-segment--darkgreen', !forecastWarning && !mhdWarning); header.classList.toggle('sg-card-segment--signal-red', forecastWarning); header.classList.toggle('sg-card-segment--signal-yellow', mhdWarning); } if (title) { title.textContent = getLagerWarningTitle(trigger); } if (warningValue) { warningValue.textContent = forecastWarning || mhdWarning ? text : 'Keine akute Warnung.'; warningValue.classList.toggle('sg-strong', forecastWarning || mhdWarning); warningValue.classList.toggle('lager-forecast-warning', forecastWarning); warningValue.classList.toggle('lager-forecast-mhd-warning', mhdWarning); } const row = trigger.closest('[data-lager-row]'); const cells = row?.querySelectorAll('[role=\"cell\"]'); const forecastCell = cells?.[cells.length - 1]; if (forecastCell && cells.length === 3) { forecastCell.textContent = text; } } };";
+    echo "  document.addEventListener('lager-save-complete', (event) => { const forecast = event.detail?.forecast; const productId = event.detail?.productId || ''; const trigger = contentRoot.querySelector('[data-lager-drawer-open][aria-expanded=\"true\"]') || contentRoot.querySelector('[data-lager-row][data-lager-id=\"' + productId + '\"] [data-lager-drawer-open]'); const drawer = getDrawer(); if (!forecast || !drawer) { return; } const date = forecast.date ? new Date(forecast.date + 'T00:00:00').toLocaleDateString('de-CH') : 'Keine Prognose'; const text = forecast.status === 'depleted' ? date + ' (BESTAND ENDE)' : date; const value = drawer.querySelector('[data-lager-drawer-forecast-value]'); if (value) { value.textContent = text; } if (trigger) { trigger.dataset.lagerDrawerForecast = text; const row = trigger.closest('[data-lager-row]'); const cells = row?.querySelectorAll('[role=\"cell\"]'); const forecastCell = cells?.[cells.length - 1]; if (forecastCell && cells.length === 3) { forecastCell.textContent = text; } } });";
     echo "  document.addEventListener('click', (event) => {";
     echo "    const trigger = event.target.closest('[data-lager-drawer-open]');";
     echo "    if (trigger) { event.preventDefault(); if (window.matchMedia('(max-width: 767px)').matches) { openLagerMobileDetail(trigger); return; } const drawer = getDrawer(); if (!drawer) { return; } const type = trigger.dataset.lagerDrawerType || 'Lager'; const name = trigger.dataset.lagerDrawerName || ''; const value = trigger.dataset.lagerDrawerValue || ''; drawer.querySelector('[data-lager-drawer-title]').textContent = type + ': ' + name; drawer.querySelector('[data-lager-drawer-name-value]').textContent = name; const valueRow = drawer.querySelector('[data-lager-drawer-value-row]'); if (valueRow) { valueRow.hidden = false; } drawer.querySelector('[data-lager-drawer-value-label]').textContent = type === 'Produkt' ? 'Anzahl im Lager:' : 'Artikelnummer:'; drawer.querySelector('[data-lager-drawer-value-value]').textContent = value; drawer.querySelectorAll('[data-lager-drawer-topic]').forEach((card) => { card.hidden = type !== 'Produkt'; }); if (type === 'Produkt') { const forecast = trigger.dataset.lagerDrawerForecast || 'Keine Prognose'; const warning = trigger.dataset.lagerDrawerForecastWarning === 'true' || trigger.dataset.lagerDrawerForecastMhdWarning === 'true'; const warningValue = drawer.querySelector('[data-lager-drawer-warning-value]'); if (warningValue) { warningValue.textContent = warning ? forecast : 'Keine akute Warnung.'; warningValue.classList.toggle('sg-strong', warning); warningValue.classList.toggle('lager-forecast-warning', trigger.dataset.lagerDrawerForecastWarning === 'true'); warningValue.classList.toggle('lager-forecast-mhd-warning', trigger.dataset.lagerDrawerForecastMhdWarning === 'true'); } drawer.querySelector('[data-lager-drawer-lot-number]').textContent = trigger.dataset.lagerDrawerLotNumber || 'Nicht hinterlegt'; drawer.querySelector('[data-lager-drawer-manufacturer-name]').textContent = trigger.dataset.lagerDrawerManufacturerName || 'Nicht hinterlegt'; drawer.querySelector('[data-lager-drawer-manufacturer-lot-number]').textContent = trigger.dataset.lagerDrawerManufacturerLotNumber || 'Nicht hinterlegt'; drawer.querySelector('[data-lager-drawer-mfg-date]').textContent = trigger.dataset.lagerDrawerMfgDate || 'Nicht hinterlegt'; drawer.querySelector('[data-lager-drawer-expiry-date]').textContent = trigger.dataset.lagerDrawerExpiryDate || 'Nicht hinterlegt'; drawer.querySelector('[data-lager-drawer-purchase-date]').textContent = trigger.dataset.lagerDrawerPurchaseDate || 'Nicht hinterlegt'; const virtualLot = trigger.dataset.lagerDrawerVirtualLotNumber || ''; drawer.querySelector('[data-lager-drawer-virtual-lot-value]').textContent = virtualLot ? 'Virtuelle Charge: ' + virtualLot : 'Keine virtuelle Fehlbestandscharge vorhanden.'; const manufacturer = drawer.querySelector('[data-lager-manufacturer]'); if (manufacturer) { manufacturer.value = trigger.dataset.lagerDrawerManufacturerPartyId || ''; } const manufacturerLot = drawer.querySelector('[data-lager-manufacturer-lot]'); if (manufacturerLot) { manufacturerLot.value = trigger.dataset.lagerDrawerManufacturerLotNumber || ''; } const mfgDate = drawer.querySelector('[data-lager-mfg-date]'); if (mfgDate) { mfgDate.value = trigger.dataset.lagerDrawerMfgDate || ''; } const expiryDate = drawer.querySelector('[data-lager-expiry-date]'); if (expiryDate) { expiryDate.value = trigger.dataset.lagerDrawerExpiryDate || ''; } const purchaseDate = drawer.querySelector('[data-lager-purchase-date]'); if (purchaseDate) { purchaseDate.value = trigger.dataset.lagerDrawerPurchaseDate || ''; } const editForm = drawer.querySelector('[data-lager-edit-form]'); if (editForm) { editForm.hidden = true; } drawer.dataset.lagerActiveLotId = trigger.dataset.lagerDrawerLotId || ''; } setDrawerState(true); contentRoot.querySelectorAll('[data-lager-drawer-open]').forEach((button) => button.setAttribute('aria-expanded', String(button === trigger))); return; }";
-    echo "  document.addEventListener('click', (event) => { const trigger = event.target.closest('[data-lager-drawer-open]'); if (trigger?.dataset.lagerDrawerType === 'Produkt') { syncLagerCurrentDocuments(trigger); } });";
     echo "    if (event.target.closest('[data-lager-drawer-close]') || event.target.closest('[data-lager-drawer-backdrop]')) { closeDrawer(); }";
     echo "  });";
     echo "  document.addEventListener('click', (event) => { const trigger = event.target.closest('[data-lager-drawer-open]'); if (!trigger || trigger.dataset.lagerDrawerType !== 'Produkt' || window.matchMedia('(max-width: 767px)').matches) { return; } const header = contentRoot.querySelector('[data-lager-drawer-warning-header]'); const title = contentRoot.querySelector('[data-lager-drawer-warning-title]'); if (!header || !title) { return; } const forecastWarning = trigger.dataset.lagerDrawerForecastWarning === 'true'; const mhdWarning = trigger.dataset.lagerDrawerForecastMhdWarning === 'true'; title.textContent = getLagerWarningTitle(trigger); header.classList.toggle('sg-card-segment--darkgreen', !forecastWarning && !mhdWarning); header.classList.toggle('sg-card-segment--signal-red', forecastWarning); header.classList.toggle('sg-card-segment--signal-yellow', mhdWarning); });";
     echo "  document.addEventListener('click', (event) => { const trigger = event.target.closest('[data-lager-drawer-open]'); if (!trigger || trigger.dataset.lagerDrawerType !== 'Produkt' || window.matchMedia('(max-width: 767px)').matches) { return; } setLagerEditMode(false); const drawer = getDrawer(); const currentQty = drawer?.querySelector('[data-lager-drawer-current-qty]'); const qtyIn = drawer?.querySelector('[data-lager-drawer-qty-in]'); const lotNumber = drawer?.querySelector('[data-lager-lot-number]'); if (currentQty) { currentQty.textContent = trigger.dataset.lagerDrawerCurrentQty || '0'; } if (qtyIn) { qtyIn.textContent = trigger.dataset.lagerDrawerQtyIn || '0'; } if (lotNumber) { lotNumber.value = trigger.dataset.lagerDrawerLotNumber || ''; } const productId = trigger.closest('[data-lager-row]')?.dataset.lagerId || ''; contentRoot.querySelectorAll('[data-lager-historical-product]').forEach((product) => { product.hidden = product.dataset.lagerHistoricalProduct !== productId; }); });";
     echo "  const postLagerChange = async (payload) => { const response = await fetch('/api/lager-charge.php', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify({ ...payload, csrfToken: contentRoot.querySelector('[data-lager-csrf-token]')?.dataset.lagerCsrfToken || '' }) }); const result = await response.json(); if (!response.ok || result.ok !== true) { throw new Error(result.error || 'Speichern fehlgeschlagen'); } syncLagerForecast(result.forecast, result.productId); const trigger = contentRoot.querySelector('[data-lager-drawer-open][aria-expanded=\"true\"]') || contentRoot.querySelector('[data-lager-row][data-lager-id=\"' + (result.productId || '') + '\"] [data-lager-drawer-open]'); const drawer = getDrawer(); const warningValue = drawer?.querySelector('[data-lager-drawer-warning-value]'); if (warningValue) { warningValue.textContent = getLagerForecastWarningText(result.forecast, trigger, trigger?.dataset.lagerDrawerForecast || 'Keine Prognose'); } return result; };";
-    echo "  document.addEventListener('click', (event) => { const remove = event.target.closest('[data-lager-document-remove-index]'); if (remove) { const scope = remove.closest('[data-lager-document-upload-form]'); const input = scope?.querySelector('[data-lager-document-file]'); const index = Number(remove.dataset.lagerDocumentRemoveIndex); if (input && Number.isInteger(index)) { const data = new DataTransfer(); Array.from(input.files || []).forEach((file, fileIndex) => { if (fileIndex !== index) { data.items.add(file); } }); input.files = data.files; input.dispatchEvent(new Event('change', { bubbles: true })); } return; } const trigger = event.target.closest('[data-lager-document-file-trigger]'); const input = trigger?.closest('[data-lager-document-upload-form]')?.querySelector('[data-lager-document-file]'); if (!input) { return; } event.preventDefault(); input.click(); });";
-    echo "  document.addEventListener('dragover', (event) => { const dropzone = event.target.closest('[data-lager-document-upload-form] .sg-file-upload__dropzone'); if (!dropzone) { return; } event.preventDefault(); dropzone.dataset.dragOver = 'true'; });";
-    echo "  document.addEventListener('dragleave', (event) => { const dropzone = event.target.closest('[data-lager-document-upload-form] .sg-file-upload__dropzone'); if (dropzone && !dropzone.contains(event.relatedTarget)) { delete dropzone.dataset.dragOver; } });";
-    echo "  document.addEventListener('drop', (event) => { const dropzone = event.target.closest('[data-lager-document-upload-form] .sg-file-upload__dropzone'); if (!dropzone) { return; } event.preventDefault(); delete dropzone.dataset.dragOver; const input = dropzone.closest('[data-lager-document-upload-form]')?.querySelector('[data-lager-document-file]'); if (input && event.dataTransfer?.files) { input.files = event.dataTransfer.files; input.dispatchEvent(new Event('change', { bubbles: true })); } });";
-    echo "  document.addEventListener('change', (event) => { const input = event.target.closest('[data-lager-document-file]'); if (!input) { return; } const form = input.closest('[data-lager-document-upload-form]'); renderLagerSelectedFiles(form); });";
-    echo "  const uploadLagerDocuments = async (scope, lotId) => { const files = Array.from(scope?.querySelectorAll('[data-lager-document-file]') || []).flatMap((input) => Array.from(input.files || [])); if (!files.length) { return []; } const status = scope.querySelector('[data-lager-document-status]'); const uploaded = []; const errorMessage = (error) => error instanceof Error ? error.message : 'Upload fehlgeschlagen'; if (files.some((file) => file.size > 52428800)) { const error = new Error('Dokument darf maximal 50 MB groß sein.'); if (status) { status.textContent = error.message; } throw error; } if (status) { status.textContent = 'Upload läuft …'; } try { for (const file of files) { const data = new FormData(); data.append('action', 'upload_document'); data.append('csrfToken', contentRoot.querySelector('[data-lager-csrf-token]')?.dataset.lagerCsrfToken || ''); data.append('lotId', lotId || ''); data.append('document', file); const response = await fetch('/api/lager-charge.php', { method: 'POST', body: data }); const result = await response.json(); if (!response.ok || result.ok !== true) { throw new Error(result.error || 'Upload fehlgeschlagen'); } uploaded.push(result.document); } } catch (error) { if (status) { status.textContent = errorMessage(error); } throw error; } if (status) { status.textContent = files.length + ' Datei(en) hochgeladen.'; } return uploaded; };";
-    echo "  document.addEventListener('click', async (event) => { const remove = event.target.closest('[data-lager-document-delete]'); if (!remove) { return; } remove.disabled = true; try { await postLagerChange({ action: 'delete_document', documentId: remove.dataset.lagerDocumentDelete }); window.location.reload(); } catch (error) { remove.disabled = false; remove.setCustomValidity(error instanceof Error ? error.message : 'Dokument konnte nicht entfernt werden'); remove.reportValidity(); } });";
     echo "  document.addEventListener('click', (event) => { const editButton = event.target.closest('[data-lager-edit-open]'); if (editButton) { const drawer = getDrawer(); const editForm = drawer?.querySelector('[data-lager-edit-form]'); if (editForm) { editForm.hidden = false; } return; } const closeButton = event.target.closest('[data-lager-edit-close]'); if (closeButton) { const drawer = getDrawer(); const editForm = drawer?.querySelector('[data-lager-edit-form]'); if (editForm) { editForm.hidden = true; } } });";
-    echo "  const setLagerEditMode = (editing) => { const drawer = getDrawer(); const readView = drawer?.querySelector('[data-lager-read-view]'); const readDocuments = drawer?.querySelector('[data-lager-documents=\"current-read\"]'); const editForm = drawer?.querySelector('[data-lager-edit-form]'); const documents = drawer?.querySelector('[data-lager-edit-documents=\"current-edit\"]'); const actions = drawer?.querySelector('[data-lager-edit-actions]'); if (readView) { readView.hidden = editing; } if (readDocuments) { readDocuments.hidden = editing; } if (editForm) { editForm.hidden = !editing; } if (documents) { documents.hidden = !editing; } if (actions) { actions.hidden = !editing; } };";
+    echo "  const setLagerEditMode = (editing) => { const drawer = getDrawer(); const readView = drawer?.querySelector('[data-lager-read-view]'); const editForm = drawer?.querySelector('[data-lager-edit-form]'); if (readView) { readView.hidden = editing; } if (editForm) { editForm.hidden = !editing; } };";
     echo "  document.addEventListener('click', (event) => { if (event.target.closest('[data-lager-edit-open]')) { setLagerEditMode(true); } if (event.target.closest('[data-lager-edit-close]')) { clearLagerMovementInputs(); setLagerEditMode(false); } });";
     echo "  const syncLagerReadView = () => { const drawer = getDrawer(); if (!drawer) { return; } const manufacturer = drawer.querySelector('[data-lager-manufacturer]'); const values = { '[data-lager-drawer-manufacturer-name]': manufacturer?.selectedOptions?.[0]?.textContent || 'Nicht hinterlegt', '[data-lager-drawer-manufacturer-lot-number]': drawer.querySelector('[data-lager-manufacturer-lot]')?.value || 'Nicht hinterlegt', '[data-lager-drawer-mfg-date]': drawer.querySelector('[data-lager-mfg-date]')?.value || 'Nicht hinterlegt', '[data-lager-drawer-expiry-date]': drawer.querySelector('[data-lager-expiry-date]')?.value || 'Nicht hinterlegt', '[data-lager-drawer-purchase-date]': drawer.querySelector('[data-lager-purchase-date]')?.value || 'Nicht hinterlegt' }; Object.entries(values).forEach(([selector, value]) => { const target = drawer.querySelector(selector); if (target) { target.textContent = value; } }); const trigger = contentRoot.querySelector('[data-lager-drawer-open][aria-expanded=\"true\"]'); if (trigger) { trigger.dataset.lagerDrawerManufacturerName = values['[data-lager-drawer-manufacturer-name]']; trigger.dataset.lagerDrawerManufacturerLotNumber = values['[data-lager-drawer-manufacturer-lot-number]']; trigger.dataset.lagerDrawerMfgDate = values['[data-lager-drawer-mfg-date]']; trigger.dataset.lagerDrawerExpiryDate = values['[data-lager-drawer-expiry-date]']; trigger.dataset.lagerDrawerPurchaseDate = values['[data-lager-drawer-purchase-date]']; } };";
     echo "  const syncLagerBalanceView = (balance) => { const drawer = getDrawer(); if (!drawer || !balance) { return; } const currentQty = drawer.querySelector('[data-lager-drawer-current-qty]'); const qtyIn = drawer.querySelector('[data-lager-drawer-qty-in]'); if (currentQty) { currentQty.textContent = String(balance.qty_net ?? 0); } if (qtyIn) { qtyIn.textContent = String(balance.qty_in ?? 0); } const trigger = contentRoot.querySelector('[data-lager-drawer-open][aria-expanded=\"true\"]'); if (trigger) { trigger.dataset.lagerDrawerCurrentQty = String(balance.qty_net ?? 0); trigger.dataset.lagerDrawerQtyIn = String(balance.qty_in ?? 0); } };";
+    echo "  const syncLagerActiveLotView = (lot) => { const drawer = getDrawer(); const trigger = contentRoot.querySelector('[data-lager-drawer-open][aria-expanded=\"true\"]'); if (!drawer || !lot || !trigger) { return; } const manufacturer = drawer.querySelector('[data-lager-manufacturer]'); if (manufacturer) { manufacturer.value = lot.manufacturer_party_id ?? ''; } const manufacturerName = manufacturer?.selectedOptions?.[0]?.textContent || 'Nicht hinterlegt'; const values = { '[data-lager-drawer-lot-number]': lot.lot_number || 'Nicht hinterlegt', '[data-lager-drawer-manufacturer-name]': manufacturerName, '[data-lager-drawer-manufacturer-lot-number]': lot.manufacturer_lot_number || 'Nicht hinterlegt', '[data-lager-drawer-mfg-date]': lot.mfg_date || 'Nicht hinterlegt', '[data-lager-drawer-expiry-date]': lot.expiry_date || 'Nicht hinterlegt', '[data-lager-drawer-purchase-date]': lot.purchase_date || 'Nicht hinterlegt' }; Object.entries(values).forEach(([selector, value]) => { const target = drawer.querySelector(selector); if (target) { target.textContent = value; } }); const formValues = { '[data-lager-lot-number]': lot.lot_number || '', '[data-lager-manufacturer-lot]': lot.manufacturer_lot_number || '', '[data-lager-mfg-date]': lot.mfg_date || '', '[data-lager-expiry-date]': lot.expiry_date || '', '[data-lager-purchase-date]': lot.purchase_date || '' }; Object.entries(formValues).forEach(([selector, value]) => { const input = drawer.querySelector(selector); if (input) { input.value = value; } }); trigger.dataset.lagerDrawerLotId = String(lot.id || lot.lot_id || ''); trigger.dataset.lagerDrawerLotNumber = lot.lot_number || ''; trigger.dataset.lagerDrawerManufacturerPartyId = String(lot.manufacturer_party_id ?? ''); trigger.dataset.lagerDrawerManufacturerName = manufacturerName; trigger.dataset.lagerDrawerManufacturerLotNumber = lot.manufacturer_lot_number || ''; trigger.dataset.lagerDrawerMfgDate = lot.mfg_date || ''; trigger.dataset.lagerDrawerExpiryDate = lot.expiry_date || ''; trigger.dataset.lagerDrawerPurchaseDate = lot.purchase_date || ''; drawer.dataset.lagerActiveLotId = String(lot.id || lot.lot_id || ''); };";
     echo "  const clearLagerMovementInputs = () => { const drawer = getDrawer(); if (!drawer) { return; } drawer.querySelectorAll('[data-lager-receipt-qty], [data-lager-adjustment-qty], [data-lager-out-qty]').forEach((input) => { input.value = ''; }); };";
-    echo "  const syncLagerOpenLotCard = (lot, balance) => { const drawer = getDrawer(); const card = drawer?.querySelector('[data-lager-open-card=\"' + (lot?.id || '') + '\"]'); if (!card) { return; } const values = { '[data-lager-open-card-lot-number]': lot?.lot_number || 'Nicht hinterlegt', '[data-lager-open-card-qty-net]': String(balance?.qty_net ?? 0), '[data-lager-open-card-qty-in]': String(balance?.qty_net ?? 0), '[data-lager-open-card-manufacturer]': drawer.querySelector('[data-lager-new-manufacturer]')?.selectedOptions?.[0]?.textContent || 'Nicht hinterlegt', '[data-lager-open-card-manufacturer-lot]': lot?.manufacturer_lot_number || 'Nicht hinterlegt', '[data-lager-open-card-mfg-date]': lot?.mfg_date || 'Nicht hinterlegt', '[data-lager-open-card-expiry-date]': lot?.expiry_date || 'Nicht hinterlegt', '[data-lager-open-card-purchase-date]': lot?.purchase_date || 'Nicht hinterlegt' }; Object.entries(values).forEach(([selector, value]) => { const target = card.querySelector(selector); if (target) { target.textContent = value; } }); const wrapper = card.closest('[data-lager-open-card-wrapper]'); wrapper?.querySelector('[data-lager-edit-documents]')?.setAttribute('hidden', ''); wrapper?.querySelector('[data-lager-open-edit-actions]')?.setAttribute('hidden', ''); wrapper?.querySelector('[data-lager-documents^=\"open-read-\"]')?.removeAttribute('hidden'); };";
-    echo "  document.addEventListener('click', (event) => { const trigger = event.target.closest('[data-lager-drawer-open]'); if (!trigger || trigger.dataset.lagerDrawerType !== 'Produkt' || window.matchMedia('(max-width: 767px)').matches) { return; } const drawer = getDrawer(); const productId = trigger.closest('[data-lager-row]')?.dataset.lagerId || ''; const openProduct = drawer?.querySelector('[data-lager-open-product=\"' + productId + '\"]'); drawer?.querySelectorAll('[data-lager-open-product]').forEach((product) => { product.hidden = product !== openProduct; product.querySelectorAll('[data-lager-open-edit-form]').forEach((form) => { form.hidden = true; }); product.querySelectorAll('[data-lager-open-edit-actions]').forEach((actions) => { actions.hidden = true; }); product.querySelectorAll('[data-lager-open-card]').forEach((readView) => { readView.hidden = false; }); product.querySelectorAll('[data-lager-documents^=\"open-read-\"]').forEach((readDocuments) => { readDocuments.hidden = false; }); product.querySelectorAll('[data-lager-edit-documents]').forEach((documents) => { documents.hidden = true; }); }); const newForm = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-form\"]'); const newAction = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-action\"]'); if (newForm) { newForm.hidden = true; } if (newAction) { newAction.hidden = false; } const notificationWrapper = drawer?.querySelector('[data-lager-new-lot-notification-wrapper]'); const notification = drawer?.querySelector('[data-lager-new-lot-notification]'); const shortageQty = trigger.dataset.lagerDrawerVirtualShortageQty || '0'; const hasShortage = shortageQty !== '0' && shortageQty !== '0,00'; if (notificationWrapper) { notificationWrapper.hidden = !hasShortage; } if (notification && hasShortage) { notification.textContent = 'Für dieses Produkt bestehen virtuelle Fehlbestände in Höhe von ' + shortageQty + '. Die Eingangsmenge wird nach Aktivierung der Charge zur Nachallokation verwendet.'; } const setValue = (selector, value) => { const field = drawer?.querySelector(selector); if (field) { field.value = value || ''; } }; setValue('[data-lager-new-lot-number]', trigger.dataset.lagerOpenLotNumber); setValue('[data-lager-new-manufacturer]', trigger.dataset.lagerOpenManufacturerPartyId); setValue('[data-lager-new-manufacturer-lot]', trigger.dataset.lagerOpenManufacturerLotNumber); setValue('[data-lager-new-mfg-date]', trigger.dataset.lagerOpenMfgDate); setValue('[data-lager-new-expiry-date]', trigger.dataset.lagerOpenExpiryDate); setValue('[data-lager-new-purchase-date]', trigger.dataset.lagerOpenPurchaseDate); if (drawer) { drawer.dataset.lagerOpenLotId = trigger.dataset.lagerOpenLotId || ''; drawer.dataset.lagerProductId = productId; } });";
-    echo "  document.addEventListener('click', (event) => { const openButton = event.target.closest('[data-lager-new-lot-open]'); if (openButton) { const drawer = getDrawer(); const form = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-form\"]'); const action = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-action\"]'); if (form) { form.hidden = false; } if (action) { action.hidden = true; } return; } if (event.target.closest('[data-lager-new-lot-close]')) { const drawer = getDrawer(); const form = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-form\"]'); const action = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-action\"]'); if (form) { form.hidden = true; } if (action) { action.hidden = false; } } });";
-    echo "  document.addEventListener('click', (event) => { const editButton = event.target.closest('[data-lager-open-edit-open]'); if (editButton) { const card = editButton.closest('[data-lager-open-card-wrapper]'); const form = card?.querySelector('[data-lager-open-edit-form]'); const readView = card?.querySelector('[data-lager-open-card]'); const readDocuments = card?.querySelector('[data-lager-documents^=\"open-read-\"]'); const documents = card?.querySelector('[data-lager-edit-documents]'); const actions = card?.querySelector('[data-lager-open-edit-actions]'); if (form) { form.hidden = false; } if (readView) { readView.hidden = true; } if (readDocuments) { readDocuments.hidden = true; } if (documents) { documents.hidden = false; } if (actions) { actions.hidden = false; } return; } const closeButton = event.target.closest('[data-lager-open-edit-close]'); if (closeButton) { const card = closeButton.closest('[data-lager-open-card-wrapper]'); const form = card?.querySelector('[data-lager-open-edit-form]'); const readView = card?.querySelector('[data-lager-open-card]'); const readDocuments = card?.querySelector('[data-lager-documents^=\"open-read-\"]'); const documents = card?.querySelector('[data-lager-edit-documents]'); const actions = card?.querySelector('[data-lager-open-edit-actions]'); if (form) { form.hidden = true; } if (readView) { readView.hidden = false; } if (readDocuments) { readDocuments.hidden = false; } if (documents) { documents.hidden = true; } if (actions) { actions.hidden = true; } } });";
+    echo "  const syncLagerOpenLotCard = (lot, balance, exactCard = null) => { const drawer = getDrawer(); const lotId = lot?.id || lot?.lot_id || ''; const card = exactCard || drawer?.querySelector('[data-lager-open-card=\"' + lotId + '\"]'); if (!card) { return; } const manufacturerSelect = card.querySelector('[data-lager-open-manufacturer]') || drawer?.querySelector('[data-lager-new-manufacturer]'); const qualified = Boolean(lot?.lot_number && lot?.manufacturer_party_id && lot?.manufacturer_lot_number && lot?.mfg_date && lot?.expiry_date && lot?.purchase_date && Number(balance?.qty_net || 0) > 0); const selected = lot?.next_active === true; const values = { '[data-lager-open-card-lot-number]': lot?.lot_number || 'Nicht hinterlegt', '[data-lager-open-card-qty-net]': String(balance?.qty_net ?? 0), '[data-lager-open-card-qty-in]': String(balance?.qty_in ?? 0), '[data-lager-open-card-manufacturer]': manufacturerSelect?.selectedOptions?.[0]?.textContent || 'Nicht hinterlegt', '[data-lager-open-card-manufacturer-lot]': lot?.manufacturer_lot_number || 'Nicht hinterlegt', '[data-lager-open-card-mfg-date]': lot?.mfg_date || 'Nicht hinterlegt', '[data-lager-open-card-expiry-date]': lot?.expiry_date || 'Nicht hinterlegt', '[data-lager-open-card-purchase-date]': lot?.purchase_date || 'Nicht hinterlegt' }; Object.entries(values).forEach(([selector, value]) => { const target = card.querySelector(selector); if (target) { target.textContent = value; } }); card.classList.toggle('sg-lager-open-lot--next-active', selected); const selectedLabel = card.querySelector('[data-lager-open-card-next-active]'); if (selectedLabel) { selectedLabel.textContent = selected ? 'Als nächste aktive Charge ausgewählt' : 'Nicht ausgewählt'; } const selectButton = card.querySelector('[data-lager-open-select]'); if (selectButton) { selectButton.dataset.lagerOpenSelectable = String(qualified); selectButton.disabled = !qualified || selected; selectButton.setAttribute('aria-disabled', String(!qualified || selected)); } };";
+    echo "  const appendLagerOpenLotCard = (lot, balance) => { if (lot?.status === 'current') { syncLagerActiveLotView(lot); syncLagerBalanceView(balance); return null; } const drawer = getDrawer(); const product = drawer?.querySelector('[data-lager-open-product=\"' + (drawer?.dataset.lagerProductId || '') + '\"]'); const list = product?.querySelector('[data-lager-open-lot-list]'); const templateProduct = drawer?.querySelector('[data-lager-open-lot-template]')?.content.querySelector('[data-lager-open-product]'); const card = templateProduct?.querySelector('[data-lager-open-card-wrapper]')?.cloneNode(true); const lotId = String(lot?.id || lot?.lot_id || ''); if (!list || !card || !lotId) { return null; } card.dataset.lagerOpenCardWrapper = lotId; const readView = card.querySelector('[data-lager-open-card]'); if (readView) { readView.dataset.lagerOpenCard = lotId; } const editTitle = card.querySelector('[id^=\"lager-open-charge-data-\"]'); if (editTitle) { editTitle.id = 'lager-open-charge-data-' + lotId; editTitle.closest('section')?.setAttribute('aria-labelledby', editTitle.id); } const confirmationTitle = card.querySelector('[id^=\"lager-open-confirmation-title-\"]'); if (confirmationTitle) { confirmationTitle.id = 'lager-open-confirmation-title-' + lotId; confirmationTitle.closest('[data-lager-open-confirmation-card]')?.setAttribute('aria-labelledby', confirmationTitle.id); } const deleteTitle = card.querySelector('[id^=\"lager-open-delete-title-\"]'); if (deleteTitle) { deleteTitle.id = 'lager-open-delete-title-' + lotId; deleteTitle.closest('[data-lager-open-delete-confirmation]')?.setAttribute('aria-labelledby', deleteTitle.id); } const setValue = (selector, value) => { const input = card.querySelector(selector); if (input) { input.value = value ?? ''; } }; setValue('[data-lager-open-lot-number]', lot.lot_number); setValue('[data-lager-open-manufacturer]', lot.manufacturer_party_id); setValue('[data-lager-open-manufacturer-lot]', lot.manufacturer_lot_number); setValue('[data-lager-open-mfg-date]', lot.mfg_date); setValue('[data-lager-open-expiry-date]', lot.expiry_date); setValue('[data-lager-open-purchase-date]', lot.purchase_date); setValue('[data-lager-open-target-qty]', balance?.qty_net ?? 0); const qualified = Boolean(lot.lot_number && lot.manufacturer_party_id && lot.manufacturer_lot_number && lot.mfg_date && lot.expiry_date && lot.purchase_date && Number(balance?.qty_net || 0) > 0); const selected = lot.next_active === true; card.classList.toggle('sg-lager-open-lot--next-active', selected); const selectedLabel = card.querySelector('[data-lager-open-card-next-active]'); if (selectedLabel) { selectedLabel.textContent = selected ? 'Als nächste aktive Charge ausgewählt' : 'Nicht ausgewählt'; } const selectButton = card.querySelector('[data-lager-open-select]'); if (selectButton) { selectButton.dataset.lagerOpenSelectable = String(qualified); selectButton.disabled = !qualified || selected; selectButton.setAttribute('aria-disabled', String(!qualified || selected)); } list.append(card); syncLagerOpenLotCard(lot, balance, card); return card; };";
+    echo "  const resetLagerNewLotConfirmation = () => { const drawer = getDrawer(); const confirmation = drawer?.querySelector('[data-lager-new-confirmation-card]'); const list = drawer?.querySelector('[data-lager-new-confirmation-empty-fields]'); const form = drawer?.querySelector('[data-lager-new-lot-form-element]'); if (confirmation) { confirmation.hidden = true; } if (list) { list.replaceChildren(); } if (form) { form.dataset.confirmationAccepted = 'false'; } if (drawer) { drawer.dataset.dialogOpen = 'false'; } };";
+    echo "  const resetLagerOpenLotConfirmations = () => { const drawer = getDrawer(); drawer?.querySelectorAll('[data-lager-open-card-wrapper]').forEach((card) => { const confirmation = card.querySelector('[data-lager-open-confirmation-card]'); const list = card.querySelector('[data-lager-open-confirmation-empty-fields]'); const form = card.querySelector('[data-lager-open-edit-form-element]'); if (confirmation) { confirmation.hidden = true; } if (list) { list.replaceChildren(); } if (form) { form.dataset.confirmationAccepted = 'false'; } card.dataset.dialogOpen = 'false'; }); };";
+    echo "  document.addEventListener('click', (event) => { const trigger = event.target.closest('[data-lager-drawer-open]'); if (!trigger || trigger.dataset.lagerDrawerType !== 'Produkt' || window.matchMedia('(max-width: 767px)').matches) { return; } const drawer = getDrawer(); const productId = trigger.closest('[data-lager-row]')?.dataset.lagerId || ''; const openProduct = drawer?.querySelector('[data-lager-open-product=\"' + productId + '\"]'); drawer?.querySelectorAll('[data-lager-open-product]').forEach((product) => { product.hidden = product !== openProduct; product.querySelectorAll('[data-lager-open-edit-form]').forEach((form) => { form.hidden = true; }); product.querySelectorAll('[data-lager-open-card]').forEach((readView) => { readView.hidden = false; }); }); resetLagerNewLotConfirmation(); resetLagerOpenLotConfirmations(); const newForm = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-form\"]'); const newAction = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-action\"]'); if (newForm) { newForm.hidden = true; } if (newAction) { newAction.hidden = false; } const notificationWrapper = drawer?.querySelector('[data-lager-new-lot-notification-wrapper]'); const notification = drawer?.querySelector('[data-lager-new-lot-notification]'); const shortageQty = trigger.dataset.lagerDrawerVirtualShortageQty || '0'; const hasShortage = shortageQty !== '0' && shortageQty !== '0,00'; if (notificationWrapper) { notificationWrapper.hidden = !hasShortage; } if (notification && hasShortage) { notification.textContent = 'Für dieses Produkt bestehen virtuelle Fehlbestände in Höhe von ' + shortageQty + '. Die Eingangsmenge wird nach Aktivierung der Charge zur Nachallokation verwendet.'; } const setValue = (selector, value) => { const field = drawer?.querySelector(selector); if (field) { field.value = value || ''; } }; setValue('[data-lager-new-lot-number]', ''); setValue('[data-lager-new-manufacturer]', ''); setValue('[data-lager-new-manufacturer-lot]', ''); setValue('[data-lager-new-mfg-date]', ''); setValue('[data-lager-new-expiry-date]', ''); setValue('[data-lager-new-purchase-date]', ''); setValue('[data-lager-new-receipt-qty]', ''); if (drawer) { drawer.dataset.lagerOpenLotId = ''; drawer.dataset.lagerProductId = productId; } });";
+    echo "  document.addEventListener('click', (event) => { const openButton = event.target.closest('[data-lager-new-lot-open]'); if (openButton) { const drawer = getDrawer(); const form = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-form\"]'); const action = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-action\"]'); resetLagerNewLotConfirmation(); if (form) { form.hidden = false; } if (action) { action.hidden = true; } return; } if (event.target.closest('[data-lager-new-lot-close]')) { const drawer = getDrawer(); const form = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-form\"]'); const action = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-action\"]'); resetLagerNewLotConfirmation(); if (form) { form.hidden = true; } if (action) { action.hidden = false; } } });";
+    echo "  document.addEventListener('click', (event) => { const editButton = event.target.closest('[data-lager-open-edit-open]'); if (editButton) { const card = editButton.closest('[data-lager-open-card-wrapper]'); const form = card?.querySelector('[data-lager-open-edit-form]'); const readView = card?.querySelector('[data-lager-open-card]'); resetLagerOpenLotConfirmations(); if (form) { form.hidden = false; } if (readView) { readView.hidden = true; } return; } const closeButton = event.target.closest('[data-lager-open-edit-close]'); if (closeButton) { const card = closeButton.closest('[data-lager-open-card-wrapper]'); const form = card?.querySelector('[data-lager-open-edit-form]'); const readView = card?.querySelector('[data-lager-open-card]'); resetLagerOpenLotConfirmations(); if (form) { form.hidden = true; } if (readView) { readView.hidden = false; } } });";
     echo "  document.addEventListener('input', (event) => { const input = event.target.closest('[data-lager-open-delete-confirmation-input]'); if (!input) { return; } const card = input.closest('[data-lager-open-card-wrapper]'); const submit = card?.querySelector('[data-lager-open-delete-confirmation-submit]'); const valid = input.value === 'DELETE'; if (submit) { submit.disabled = !valid; submit.setAttribute('aria-disabled', String(!valid)); submit.classList.toggle('sg-button--process-inactive', !valid); } });";
-    echo "  document.addEventListener('click', async (event) => { const deleteButton = event.target.closest('[data-lager-open-delete]'); if (deleteButton) { const card = deleteButton.closest('[data-lager-open-card-wrapper]'); const confirmation = card?.querySelector('[data-lager-open-delete-confirmation]'); const input = card?.querySelector('[data-lager-open-delete-confirmation-input]'); const submit = card?.querySelector('[data-lager-open-delete-confirmation-submit]'); if (input) { input.value = ''; } if (submit) { submit.disabled = true; submit.setAttribute('aria-disabled', 'true'); submit.classList.add('sg-button--process-inactive'); } if (confirmation) { confirmation.hidden = false; } if (card) { card.dataset.dialogOpen = 'true'; } return; } const cancel = event.target.closest('[data-lager-open-delete-confirmation-cancel]'); if (cancel) { const card = cancel.closest('[data-lager-open-card-wrapper]'); const confirmation = card?.querySelector('[data-lager-open-delete-confirmation]'); if (confirmation) { confirmation.hidden = true; } if (card) { card.dataset.dialogOpen = 'false'; } return; } const submit = event.target.closest('[data-lager-open-delete-confirmation-submit]'); if (!submit || submit.disabled) { return; } const card = submit.closest('[data-lager-open-card-wrapper]'); const confirmation = card?.querySelector('[data-lager-open-delete-confirmation]'); const status = card?.querySelector('[data-lager-open-delete-status]'); if (status) { status.textContent = 'Löschen läuft …'; } submit.disabled = true; try { await postLagerChange({ action: 'delete_open_lot', lotId: card?.dataset.lagerOpenCardWrapper || '' }); card?.remove(); } catch (error) { if (status) { status.textContent = error instanceof Error ? error.message : 'Löschen fehlgeschlagen'; } submit.disabled = false; } });";
+    echo "  document.addEventListener('click', async (event) => { const selectButton = event.target.closest('[data-lager-open-select]'); if (!selectButton) { return; } const card = selectButton.closest('[data-lager-open-card-wrapper]'); const product = card?.closest('[data-lager-open-product]'); const drawer = getDrawer(); const productId = product?.dataset.lagerOpenProduct || drawer?.dataset.lagerProductId || ''; const lotId = card?.dataset.lagerOpenCardWrapper || ''; if (!productId || !lotId) { return; } selectButton.disabled = true; try { const result = await postLagerChange({ action: 'select_open_lot', productId, lotId }); if (result.currentLot?.id && String(result.currentLot.id) === String(lotId)) { card?.remove(); syncLagerActiveLotView(result.currentLot); syncLagerBalanceView({ qty_net: result.currentLot.qty_net, qty_in: result.currentLot.qty_in, qty_out: result.currentLot.qty_out }); return; } product.querySelectorAll('[data-lager-open-card-wrapper]').forEach((candidate) => { const selected = candidate === card; candidate.classList.toggle('sg-lager-open-lot--next-active', selected); const label = candidate.querySelector('[data-lager-open-card-next-active]'); if (label) { label.textContent = selected ? 'Als nächste aktive Charge ausgewählt' : 'Nicht ausgewählt'; } const button = candidate.querySelector('[data-lager-open-select]'); if (button) { button.disabled = selected || button.dataset.lagerOpenSelectable !== 'true'; button.setAttribute('aria-disabled', String(button.disabled)); } }); } catch (error) { const status = card?.querySelector('[data-lager-open-edit-status]'); if (status) { status.textContent = error instanceof Error ? error.message : 'Auswahl fehlgeschlagen'; } selectButton.disabled = false; selectButton.setAttribute('aria-disabled', 'false'); } });";
+    echo "  document.addEventListener('click', async (event) => { const deleteButton = event.target.closest('[data-lager-open-delete]'); if (deleteButton) { const card = deleteButton.closest('[data-lager-open-card-wrapper]'); const confirmation = card?.querySelector('[data-lager-open-delete-confirmation]'); const input = card?.querySelector('[data-lager-open-delete-confirmation-input]'); const submit = card?.querySelector('[data-lager-open-delete-confirmation-submit]'); if (input) { input.value = ''; } if (submit) { submit.disabled = true; submit.setAttribute('aria-disabled', 'true'); submit.classList.add('sg-button--process-inactive'); } if (confirmation) { confirmation.hidden = false; } if (card) { card.dataset.dialogOpen = 'true'; } return; } const cancel = event.target.closest('[data-lager-open-delete-confirmation-cancel]'); if (cancel) { const card = cancel.closest('[data-lager-open-card-wrapper]'); const confirmation = card?.querySelector('[data-lager-open-delete-confirmation]'); if (confirmation) { confirmation.hidden = true; } if (card) { card.dataset.dialogOpen = 'false'; } return; } const submit = event.target.closest('[data-lager-open-delete-confirmation-submit]'); if (!submit || submit.disabled) { return; } const card = submit.closest('[data-lager-open-card-wrapper]'); const confirmation = card?.querySelector('[data-lager-open-delete-confirmation]'); const status = card?.querySelector('[data-lager-open-delete-status]'); if (status) { status.textContent = 'Löschen läuft …'; } submit.disabled = true; try { const result = await postLagerChange({ action: 'delete_open_lot', lotId: card?.dataset.lagerOpenCardWrapper || '' }); if (result.currentLot) { syncLagerActiveLotView(result.currentLot); syncLagerBalanceView({ qty_net: result.currentLot.qty_net, qty_in: result.currentLot.qty_in, qty_out: result.currentLot.qty_out }); } const productId = card?.closest('[data-lager-open-product]')?.dataset.lagerOpenProduct || ''; contentRoot.querySelectorAll('[data-lager-drawer-open]').forEach((trigger) => { if (trigger.closest('[data-lager-row]')?.dataset.lagerId === productId) { trigger.dataset.lagerOpenLotId = ''; } }); const drawer = getDrawer(); if (drawer) { drawer.dataset.lagerOpenLotId = ''; } card?.remove(); } catch (error) { if (status) { status.textContent = error instanceof Error ? error.message : 'Löschen fehlgeschlagen'; } submit.disabled = false; } });";
     echo "  document.addEventListener('click', (event) => { const cancel = event.target.closest('[data-lager-open-confirmation-cancel]'); if (cancel) { const card = cancel.closest('[data-lager-open-card-wrapper]'); const confirmation = card?.querySelector('[data-lager-open-confirmation-card]'); if (confirmation) { confirmation.hidden = true; } if (card) { card.dataset.dialogOpen = 'false'; } const form = card?.querySelector('[data-lager-open-edit-form-element]'); if (form) { form.dataset.confirmationAccepted = 'false'; } return; } const confirm = event.target.closest('[data-lager-open-confirmation-submit]'); if (confirm) { const card = confirm.closest('[data-lager-open-card-wrapper]'); const confirmation = card?.querySelector('[data-lager-open-confirmation-card]'); const form = card?.querySelector('[data-lager-open-edit-form-element]'); if (confirmation) { confirmation.hidden = true; } if (card) { card.dataset.dialogOpen = 'false'; } if (form) { form.dataset.confirmationAccepted = 'true'; form.requestSubmit(); } } });";
-    echo "  document.addEventListener('submit', async (event) => { const openLotForm = event.target.closest('[data-lager-open-edit-form-element]'); if (!openLotForm) { return; } event.preventDefault(); const drawer = getDrawer(); const card = openLotForm.closest('[data-lager-open-card-wrapper]'); const editSection = card?.querySelector('[data-lager-open-edit-form]'); const fields = [{ label: 'Naurua-Chargennummer', input: openLotForm.querySelector('[data-lager-open-lot-number]') }, { label: 'Hersteller', input: openLotForm.querySelector('[data-lager-open-manufacturer]') }, { label: 'Hersteller-Chargennummer', input: openLotForm.querySelector('[data-lager-open-manufacturer-lot]') }, { label: 'Herstellungsdatum', input: openLotForm.querySelector('[data-lager-open-mfg-date]') }, { label: 'MHD', input: openLotForm.querySelector('[data-lager-open-expiry-date]') }, { label: 'Einkaufsdatum', input: openLotForm.querySelector('[data-lager-open-purchase-date]') }, { label: 'Menge', input: openLotForm.querySelector('[data-lager-open-target-qty]') }]; const emptyFields = fields.filter((field) => (field.input?.value || '').trim() === ''); if (emptyFields.length > 0 && openLotForm.dataset.confirmationAccepted !== 'true') { const confirmation = card?.querySelector('[data-lager-open-confirmation-card]'); const emptyFieldsList = card?.querySelector('[data-lager-open-confirmation-empty-fields]'); if (emptyFieldsList) { emptyFieldsList.replaceChildren(...emptyFields.map((field) => { const item = document.createElement('div'); item.className = 'sg-body'; item.textContent = field.label; return item; })); } if (confirmation) { confirmation.hidden = false; } if (card) { card.dataset.dialogOpen = 'true'; } return; } openLotForm.dataset.confirmationAccepted = 'false'; const status = openLotForm.closest('[data-lager-open-edit-form]')?.querySelector('[data-lager-open-edit-status]'); if (status) { status.textContent = 'Speichern läuft …'; } try { const lotId = card?.dataset.lagerOpenCardWrapper || ''; const uploadedDocuments = await uploadLagerDocuments(card?.querySelector('[data-lager-documents=open-edit-' + lotId + ']'), lotId); const existingDocuments = Array.from(card?.querySelectorAll('[data-lager-documents^=\"open-read-\"] [data-lager-document-row]') || []).map((row) => ({ id: Number(row.dataset.lagerDocumentRow || 0), original_filename: row.querySelector('a')?.textContent || 'Dokument' })); const targetQtyInput = openLotForm.querySelector('[data-lager-open-target-qty]'); const result = await postLagerChange({ action: 'prepare_lot', productId: drawer?.dataset.lagerProductId || '', lotId, lotNumber: openLotForm.querySelector('[data-lager-open-lot-number]')?.value || '', manufacturerPartyId: openLotForm.querySelector('[data-lager-open-manufacturer]')?.value || null, manufacturerLotNumber: openLotForm.querySelector('[data-lager-open-manufacturer-lot]')?.value || '', mfgDate: openLotForm.querySelector('[data-lager-open-mfg-date]')?.value || '', expiryDate: openLotForm.querySelector('[data-lager-open-expiry-date]')?.value || '', purchaseDate: openLotForm.querySelector('[data-lager-open-purchase-date]')?.value || '', targetQty: targetQtyInput?.value.trim() === '' ? '0' : targetQtyInput?.value || '' }); syncLagerDocumentViews(card, [...existingDocuments, ...uploadedDocuments]); syncLagerOpenLotCard(result.lot, result.balance); if (editSection) { editSection.hidden = true; } card?.querySelector('[data-lager-open-card]')?.removeAttribute('hidden'); if (status) { status.textContent = ''; } } catch (error) { if (status) { status.textContent = error instanceof Error ? error.message : 'Speichern fehlgeschlagen'; } } });";
-    echo "  document.addEventListener('submit', async (event) => { const newLotForm = event.target.closest('[data-lager-new-lot-form-element]'); if (!newLotForm) { return; } event.preventDefault(); const drawer = getDrawer(); const status = drawer?.querySelector('[data-lager-new-lot-status]'); if (status) { status.textContent = 'Speichern läuft …'; } try { const result = await postLagerChange({ action: 'prepare_lot', productId: drawer?.dataset.lagerProductId || '', lotId: drawer?.dataset.lagerOpenLotId || '', lotNumber: drawer?.querySelector('[data-lager-new-lot-number]')?.value || '', manufacturerPartyId: drawer?.querySelector('[data-lager-new-manufacturer]')?.value || null, manufacturerLotNumber: drawer?.querySelector('[data-lager-new-manufacturer-lot]')?.value || '', mfgDate: drawer?.querySelector('[data-lager-new-mfg-date]')?.value || '', expiryDate: drawer?.querySelector('[data-lager-new-expiry-date]')?.value || '', purchaseDate: drawer?.querySelector('[data-lager-new-purchase-date]')?.value || '', receiptQty: drawer?.querySelector('[data-lager-new-receipt-qty]')?.value || '' }); syncLagerOpenLotCard(result.lot, result.balance); const form = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-form\"]'); const action = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-action\"]'); if (form) { form.hidden = true; } if (action) { action.hidden = false; } if (status) { status.textContent = ''; } } catch (error) { if (status) { status.textContent = error instanceof Error ? error.message : 'Speichern fehlgeschlagen'; } } });";
-    echo "  document.addEventListener('submit', async (event) => { const editForm = event.target.closest('[data-lager-edit-form-element]'); if (!editForm) { return; } event.preventDefault(); const drawer = getDrawer(); const status = drawer?.querySelector('[data-lager-edit-status]'); if (status) { status.textContent = 'Speichern läuft …'; } try { const lotId = drawer?.dataset.lagerActiveLotId || ''; const uploadedDocuments = await uploadLagerDocuments(drawer?.querySelector('[data-lager-documents=\"current-edit\"]'), lotId); const result = await postLagerChange({ action: 'update_lot', lotId, manufacturerPartyId: drawer?.querySelector('[data-lager-manufacturer]')?.value || null, manufacturerLotNumber: drawer?.querySelector('[data-lager-manufacturer-lot]')?.value || '', mfgDate: drawer?.querySelector('[data-lager-mfg-date]')?.value || '', expiryDate: drawer?.querySelector('[data-lager-expiry-date]')?.value || '', purchaseDate: drawer?.querySelector('[data-lager-purchase-date]')?.value || '', receiptQty: drawer?.querySelector('[data-lager-receipt-qty]')?.value || '', adjustmentQty: drawer?.querySelector('[data-lager-adjustment-qty]')?.value || '', outQty: drawer?.querySelector('[data-lager-out-qty]')?.value || '' }); const trigger = contentRoot.querySelector('[data-lager-drawer-open][aria-expanded=\"true\"]'); if (trigger && uploadedDocuments.length) { let existingDocuments = []; try { existingDocuments = JSON.parse(trigger.dataset.lagerDrawerDocuments || '[]'); } catch (error) { existingDocuments = []; } trigger.dataset.lagerDrawerDocuments = JSON.stringify([...existingDocuments, ...uploadedDocuments]); syncLagerCurrentDocuments(trigger); } syncLagerReadView(); syncLagerBalanceView(result.balance); clearLagerMovementInputs(); setLagerEditMode(false); if (status) { status.textContent = ''; } } catch (error) { if (status) { status.textContent = error instanceof Error ? error.message : 'Speichern fehlgeschlagen'; } } });";
+    echo "  document.addEventListener('submit', async (event) => { const openLotForm = event.target.closest('[data-lager-open-edit-form-element]'); if (!openLotForm) { return; } event.preventDefault(); const drawer = getDrawer(); const card = openLotForm.closest('[data-lager-open-card-wrapper]'); const editSection = card?.querySelector('[data-lager-open-edit-form]'); const fields = [{ label: 'Naurua-Chargennummer', input: openLotForm.querySelector('[data-lager-open-lot-number]') }, { label: 'Hersteller', input: openLotForm.querySelector('[data-lager-open-manufacturer]') }, { label: 'Hersteller-Chargennummer', input: openLotForm.querySelector('[data-lager-open-manufacturer-lot]') }, { label: 'Herstellungsdatum', input: openLotForm.querySelector('[data-lager-open-mfg-date]') }, { label: 'MHD', input: openLotForm.querySelector('[data-lager-open-expiry-date]') }, { label: 'Einkaufsdatum', input: openLotForm.querySelector('[data-lager-open-purchase-date]') }, { label: 'Menge', input: openLotForm.querySelector('[data-lager-open-target-qty]') }]; const emptyFields = fields.filter((field) => (field.input?.value || '').trim() === ''); if (emptyFields.length > 0 && openLotForm.dataset.confirmationAccepted !== 'true') { const confirmation = card?.querySelector('[data-lager-open-confirmation-card]'); const emptyFieldsList = card?.querySelector('[data-lager-open-confirmation-empty-fields]'); if (emptyFieldsList) { emptyFieldsList.replaceChildren(...emptyFields.map((field) => { const item = document.createElement('div'); item.className = 'sg-body'; item.textContent = field.label; return item; })); } if (confirmation) { confirmation.hidden = false; } if (card) { card.dataset.dialogOpen = 'true'; } return; } openLotForm.dataset.confirmationAccepted = 'false'; const status = openLotForm.querySelector('[data-lager-open-edit-status]'); if (status) { status.textContent = 'Speichern läuft …'; } try { const targetQtyInput = openLotForm.querySelector('[data-lager-open-target-qty]'); const result = await postLagerChange({ action: 'prepare_lot', productId: drawer?.dataset.lagerProductId || '', lotId: card?.dataset.lagerOpenCardWrapper || '', lotNumber: openLotForm.querySelector('[data-lager-open-lot-number]')?.value || '', manufacturerPartyId: openLotForm.querySelector('[data-lager-open-manufacturer]')?.value || null, manufacturerLotNumber: openLotForm.querySelector('[data-lager-open-manufacturer-lot]')?.value || '', mfgDate: openLotForm.querySelector('[data-lager-open-mfg-date]')?.value || '', purchaseDate: openLotForm.querySelector('[data-lager-open-purchase-date]')?.value || '', expiryDate: openLotForm.querySelector('[data-lager-open-expiry-date]')?.value || '', targetQty: targetQtyInput?.value.trim() === '' ? '0' : targetQtyInput?.value || '' }); if (result.lot?.status === 'current') { card?.remove(); syncLagerActiveLotView(result.lot); syncLagerBalanceView(result.balance); } else { syncLagerOpenLotCard(result.lot, result.balance); } if (editSection) { editSection.hidden = true; } card?.querySelector('[data-lager-open-card]')?.removeAttribute('hidden'); if (status) { status.textContent = ''; } } catch (error) { if (status) { status.textContent = error instanceof Error ? error.message : 'Speichern fehlgeschlagen'; } } });";
+    echo "  document.addEventListener('click', (event) => { const cancel = event.target.closest('[data-lager-new-confirmation-cancel]'); if (cancel) { const drawer = getDrawer(); const confirmation = drawer?.querySelector('[data-lager-new-confirmation-card]'); if (confirmation) { confirmation.hidden = true; } if (drawer) { drawer.dataset.dialogOpen = 'false'; } const form = drawer?.querySelector('[data-lager-new-lot-form-element]'); if (form) { form.dataset.confirmationAccepted = 'false'; } return; } const confirm = event.target.closest('[data-lager-new-confirmation-submit]'); if (confirm) { const drawer = getDrawer(); const confirmation = drawer?.querySelector('[data-lager-new-confirmation-card]'); const form = drawer?.querySelector('[data-lager-new-lot-form-element]'); if (confirmation) { confirmation.hidden = true; } if (drawer) { drawer.dataset.dialogOpen = 'false'; } if (form) { form.dataset.confirmationAccepted = 'true'; form.requestSubmit(); } } });";
+    echo "  document.addEventListener('submit', async (event) => { const newLotForm = event.target.closest('[data-lager-new-lot-form-element]'); if (!newLotForm) { return; } event.preventDefault(); const drawer = getDrawer(); const fields = [{ label: 'Naurua-Chargennummer', input: drawer?.querySelector('[data-lager-new-lot-number]') }, { label: 'Hersteller', input: drawer?.querySelector('[data-lager-new-manufacturer]') }, { label: 'Hersteller-Chargennummer', input: drawer?.querySelector('[data-lager-new-manufacturer-lot]') }, { label: 'Herstellungsdatum', input: drawer?.querySelector('[data-lager-new-mfg-date]') }, { label: 'MHD', input: drawer?.querySelector('[data-lager-new-expiry-date]') }, { label: 'Einkaufsdatum', input: drawer?.querySelector('[data-lager-new-purchase-date]') }, { label: 'Eingangsmenge', input: drawer?.querySelector('[data-lager-new-receipt-qty]') }]; const emptyFields = fields.filter((field) => (field.input?.value || '').trim() === ''); if (emptyFields.length > 0 && newLotForm.dataset.confirmationAccepted !== 'true') { const confirmation = drawer?.querySelector('[data-lager-new-confirmation-card]'); const emptyFieldsList = drawer?.querySelector('[data-lager-new-confirmation-empty-fields]'); if (emptyFieldsList) { emptyFieldsList.replaceChildren(...emptyFields.map((field) => { const item = document.createElement('div'); item.className = 'sg-body'; item.textContent = field.label; return item; })); } if (confirmation) { confirmation.hidden = false; } if (drawer) { drawer.dataset.dialogOpen = 'true'; } return; } newLotForm.dataset.confirmationAccepted = 'false'; const status = drawer?.querySelector('[data-lager-new-lot-status]'); if (status) { status.textContent = 'Speichern läuft …'; } try { const result = await postLagerChange({ action: 'prepare_lot', productId: drawer?.dataset.lagerProductId || '', lotId: '', lotNumber: drawer?.querySelector('[data-lager-new-lot-number]')?.value || '', manufacturerPartyId: drawer?.querySelector('[data-lager-new-manufacturer]')?.value || null, manufacturerLotNumber: drawer?.querySelector('[data-lager-new-manufacturer-lot]')?.value || '', mfgDate: drawer?.querySelector('[data-lager-new-mfg-date]')?.value || '', expiryDate: drawer?.querySelector('[data-lager-new-expiry-date]')?.value || '', purchaseDate: drawer?.querySelector('[data-lager-new-purchase-date]')?.value || '', receiptQty: drawer?.querySelector('[data-lager-new-receipt-qty]')?.value || '' }); appendLagerOpenLotCard(result.lot, result.balance); resetLagerNewLotConfirmation(); const form = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-form\"]'); const action = drawer?.querySelector('[data-lager-drawer-topic=\"new-lot-action\"]'); if (form) { form.hidden = true; } if (action) { action.hidden = false; } if (status) { status.textContent = ''; } } catch (error) { if (status) { status.textContent = error instanceof Error ? error.message : 'Speichern fehlgeschlagen'; } } });";
+    echo "  document.addEventListener('submit', async (event) => { const editForm = event.target.closest('[data-lager-edit-form-element]'); if (!editForm) { return; } event.preventDefault(); const drawer = getDrawer(); const status = drawer?.querySelector('[data-lager-edit-status]'); if (status) { status.textContent = 'Speichern läuft …'; } try { const result = await postLagerChange({ action: 'update_lot', lotId: drawer?.dataset.lagerActiveLotId || '', manufacturerPartyId: drawer?.querySelector('[data-lager-manufacturer]')?.value || null, manufacturerLotNumber: drawer?.querySelector('[data-lager-manufacturer-lot]')?.value || '', mfgDate: drawer?.querySelector('[data-lager-mfg-date]')?.value || '', expiryDate: drawer?.querySelector('[data-lager-expiry-date]')?.value || '', purchaseDate: drawer?.querySelector('[data-lager-purchase-date]')?.value || '', receiptQty: drawer?.querySelector('[data-lager-receipt-qty]')?.value || '', adjustmentQty: drawer?.querySelector('[data-lager-adjustment-qty]')?.value || '', outQty: drawer?.querySelector('[data-lager-out-qty]')?.value || '' }); syncLagerActiveLotView(result.lot); syncLagerBalanceView(result.balance); clearLagerMovementInputs(); setLagerEditMode(false); if (status) { status.textContent = ''; } } catch (error) { if (status) { status.textContent = error instanceof Error ? error.message : 'Speichern fehlgeschlagen'; } } });";
     echo "  document.addEventListener('click', (event) => { if (event.target.closest('[data-lager-detail-back]')) { event.preventDefault(); closeLagerMobileDetail(); } });";
     echo "  document.addEventListener('keydown', (event) => { if (event.key === 'Escape') { closeDrawer(); closeLagerMobileDetail(); } });";
     echo "  window.addEventListener('popstate', (event) => { if (lagerMobileDetailOpen && (!event.state || event.state.lagerView !== 'detail')) { restoreLagerMobileDetail(); } });";

public/api/lager-document.php

@@ -1,30 +0,0 @@
-<?php
-declare(strict_types=1);
-
-require_once __DIR__ . '/../../modules/shared/db.php';
-require_once __DIR__ . '/../../modules/shared/auth/service.php';
-require_once __DIR__ . '/../../modules/erp/lager/service.php';
-
-$env = expand_env_values(parse_env_file(__DIR__ . '/../../.env'));
-
-try {
-    $pdo = connect_database($env);
-    auth_bootstrap_session();
-    if (auth_current_user($pdo) === null) {
-        http_response_code(401);
-        exit('Unauthorized');
-    }
-    $document = get_stock_lot_document($pdo, (int) ($_GET['id'] ?? 0));
-    $path = dirname(__DIR__, 2) . '/runtime/uploads/lager/' . basename((string) $document['stored_filename']);
-    if (!is_file($path)) {
-        http_response_code(404);
-        exit('Not Found');
-    }
-    header('Content-Type: application/octet-stream');
-    header('Content-Length: ' . (string) filesize($path));
-    header("Content-Disposition: attachment; filename*=UTF-8''" . rawurlencode((string) $document['original_filename']));
-    readfile($path);
-} catch (Throwable) {
-    http_response_code(404);
-    exit('Not Found');
-}

public/assets/styles.portal.css

@@ -247,7 +247,7 @@ body.sg-lager-mobile-detail-open > :not([data-lager-mobile-detail-host]) {
 }
 
 .sg-large-table--lager[data-lager-table-key="products"] .sg-large-table__row {
-  grid-template-columns: repeat(3, minmax(0, 1fr));
+  grid-template-columns: repeat(5, minmax(0, 1fr));
 }
 
 .sg-large-table--lager[data-lager-table-key="products"] .sg-large-table__cell:last-child {
@@ -275,21 +275,10 @@ body.sg-lager-mobile-detail-open > :not([data-lager-mobile-detail-host]) {
 .sg-card-list-page-drawer [data-lager-drawer-topic="new-lot-form"][hidden],
 .sg-card-list-page-drawer [data-lager-new-lot-notification-wrapper][hidden],
 .sg-card-list-page-drawer [data-lager-open-edit-form][hidden],
-.sg-card-list-page-drawer [data-lager-open-edit-actions][hidden],
-.sg-card-list-page-drawer [data-lager-open-card][hidden],
-.sg-card-list-page-drawer [data-lager-edit-documents][hidden],
-.sg-card-list-page-drawer [data-lager-edit-actions][hidden] {
+.sg-card-list-page-drawer [data-lager-open-card][hidden] {
   display: none;
 }
 
-.sg-card-list-page-drawer .sg-file-upload {
-  max-width: none;
-}
-
-.sg-card-list-page-drawer .sg-file-upload__dropzone {
-  box-sizing: border-box;
-}
-
 .sg-card-list-page-drawer [data-lager-drawer-topic="new-lot-action"] {
   display: flex;
   align-items: center;