Automate Shopify reconciliation in daily cron

modules/erp/import-integration/shopify-delta-run.php

@@ -33,6 +33,51 @@ function shopify_delta_start_run(PDO $pdo, string $cutoff, bool $dryRun): int
     return (int) $stmt->fetchColumn();
 }
 
+function shopify_delta_reconciliation_cutoff(PDO $pdo): string
+{
+    $stateStmt = $pdo->prepare(
+        'SELECT last_successful_cutoff
+         FROM shopify_delta_sync_state
+         WHERE process_name = :process_name'
+    );
+    $stateStmt->execute([':process_name' => 'erp.import-integration.shopify_delta_order_import']);
+    $state = $stateStmt->fetchColumn();
+    if ($state === false || trim((string) $state) === '') {
+        throw new RuntimeException('Shopify-Delta-Wasserstand fehlt');
+    }
+
+    $pendingStmt = $pdo->query(
+        "SELECT MIN(received_at)
+         FROM shopify_webhook_event
+         WHERE status IN ('received', 'processing', 'failed')
+           AND shopify_order_gid IS NOT NULL"
+    );
+    $pending = $pendingStmt->fetchColumn();
+    if ($pending === false || $pending === null) {
+        return (string) $state;
+    }
+
+    $stateDate = new DateTimeImmutable((string) $state);
+    $pendingDate = new DateTimeImmutable((string) $pending);
+    return ($pendingDate < $stateDate ? $pendingDate : $stateDate)->format(DATE_ATOM);
+}
+
+function shopify_delta_store_watermark(PDO $pdo, string $cutoff): void
+{
+    $stmt = $pdo->prepare(
+        'UPDATE shopify_delta_sync_state
+         SET last_successful_cutoff = :cutoff, updated_at = NOW()
+         WHERE process_name = :process_name'
+    );
+    $stmt->execute([
+        ':cutoff' => $cutoff,
+        ':process_name' => 'erp.import-integration.shopify_delta_order_import',
+    ]);
+    if ($stmt->rowCount() !== 1) {
+        throw new RuntimeException('Shopify-Delta-Wasserstand konnte nicht gespeichert werden');
+    }
+}
+
 function shopify_delta_finish_run(PDO $pdo, int $runId, string $status, array $result, ?Throwable $error = null): void
 {
     $stmt = $pdo->prepare(