Revert "Remove lot document comments"

This reverts commit 3a3de9da22.

modules/erp/lager/api/lot.php

@@ -36,11 +36,13 @@ try {
             $pdo,
             (int) ($_POST['lotId'] ?? 0),
             $file,
+            (string) ($_POST['comment'] ?? ''),
             (string) ($currentUser['username'] ?? $currentUser['email'] ?? 'unknown')
         );
         json_response(201, ['ok' => true, 'document' => [
             'id' => (int) $document['id'],
             'original_filename' => (string) $document['original_filename'],
+            'comment' => $document['comment'] === null ? '' : (string) $document['comment'],
         ]]);
     }
 
@@ -101,6 +103,11 @@ try {
         json_response(200, ['ok' => true, 'productId' => $productId, 'availableQty' => get_lager_product_available_qty($pdo, $productId)]);
     }
 
+    if ($action === 'update_document_comment') {
+        update_stock_lot_document_comment($pdo, (int) ($data['documentId'] ?? 0), (string) ($data['comment'] ?? ''));
+        json_response(200, ['ok' => true]);
+    }
+
     if ($action === 'delete_document') {
         delete_stock_lot_document($pdo, (int) ($data['documentId'] ?? 0));
         json_response(200, ['ok' => true]);

modules/erp/lager/service.php

@@ -286,7 +286,7 @@ function get_stock_lot_documents_by_lot_ids(PDO $pdo, array $lotIds): array
 
     $placeholders = implode(',', array_fill(0, count($lotIds), '?'));
     $stmt = $pdo->prepare(
-        "SELECT id, stock_lot_id, original_filename, mime_type, size_bytes, uploaded_at
+        "SELECT id, stock_lot_id, original_filename, mime_type, size_bytes, comment, uploaded_at
          FROM stock_lot_document
          WHERE stock_lot_id IN ({$placeholders})
          ORDER BY stock_lot_id, id"
@@ -299,6 +299,7 @@ function get_stock_lot_documents_by_lot_ids(PDO $pdo, array $lotIds): array
             'original_filename' => (string) $row['original_filename'],
             'mime_type' => (string) $row['mime_type'],
             'size_bytes' => (int) $row['size_bytes'],
+            'comment' => $row['comment'] === null ? '' : (string) $row['comment'],
             'uploaded_at' => (string) $row['uploaded_at'],
         ];
     }
@@ -308,7 +309,7 @@ function get_stock_lot_documents_by_lot_ids(PDO $pdo, array $lotIds): array
 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
+        'SELECT id, stock_lot_id, original_filename, stored_filename, mime_type, size_bytes, comment
          FROM stock_lot_document WHERE id = :id'
     );
     $stmt->execute([':id' => $documentId]);
@@ -319,6 +320,22 @@ function get_stock_lot_document(PDO $pdo, int $documentId): array
     return $document;
 }
 
+function update_stock_lot_document_comment(PDO $pdo, int $documentId, string $comment): 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 bearbeitet werden');
+    }
+    $stmt = $pdo->prepare('UPDATE stock_lot_document SET comment = :comment WHERE id = :id');
+    $stmt->execute([':comment' => trim($comment) === '' ? null : trim($comment), ':id' => $documentId]);
+    if ($stmt->rowCount() !== 1) {
+        throw new RuntimeException('Dokument nicht gefunden');
+    }
+}
+
 function delete_stock_lot_document(PDO $pdo, int $documentId): void
 {
     $document = get_stock_lot_document($pdo, $documentId);
@@ -336,7 +353,7 @@ function delete_stock_lot_document(PDO $pdo, int $documentId): void
     }
 }
 
-function upload_stock_lot_document(PDO $pdo, int $lotId, array $file, string $uploadedBy): array
+function upload_stock_lot_document(PDO $pdo, int $lotId, array $file, string $comment, string $uploadedBy): array
 {
     if ($lotId <= 0 || !is_uploaded_file((string) ($file['tmp_name'] ?? ''))) {
         throw new InvalidArgumentException('Ungültige Dokumentdatei');
@@ -372,8 +389,8 @@ function upload_stock_lot_document(PDO $pdo, int $lotId, array $file, string $up
     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)
+                (stock_lot_id, original_filename, stored_filename, mime_type, size_bytes, comment, uploaded_by)
+             VALUES (:lot_id, :original_filename, :stored_filename, :mime_type, :size_bytes, :comment, :uploaded_by)
              RETURNING id'
         );
         $stmt->execute([
@@ -382,6 +399,7 @@ function upload_stock_lot_document(PDO $pdo, int $lotId, array $file, string $up
             ':stored_filename' => $storedFilename,
             ':mime_type' => $mimeType,
             ':size_bytes' => $size,
+            ':comment' => trim($comment) === '' ? null : trim($comment),
             ':uploaded_by' => $uploadedBy,
         ]);
         return get_stock_lot_document($pdo, (int) $stmt->fetchColumn());