Provide guide for immediate synchronization of order and delivery statuses

Add a guide document with SQL scripts and testing instructions for synchronizing order and delivery statuses, including fixing missing delivery dates.

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fix-delivery-order-sync-immediate.sql

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+-- Script de synchronisation immédiate des statuts commandes/livraisons
+-- Exécuter directement sur la base de données de production
+
+-- Étape 1: Diagnostic - Afficher les commandes problématiques
+SELECT 
+    o.id as order_id,
+    o.status as order_status,
+    d.id as delivery_id,
+    d.status as delivery_status,
+    d.delivered_date,
+    o.supplier_id,
+    s.name as supplier_name
+FROM orders o
+JOIN deliveries d ON d.order_id = o.id  
+JOIN suppliers s ON o.supplier_id = s.id
+WHERE d.status = 'delivered' AND o.status != 'delivered'
+ORDER BY o.id;
+
+-- Étape 2: Mise à jour automatique des statuts
+-- Marquer toutes les commandes comme "delivered" si au moins une de leurs livraisons est livrée
+UPDATE orders 
+SET status = 'delivered'
+WHERE id IN (
+    SELECT DISTINCT o.id 
+    FROM orders o
+    JOIN deliveries d ON d.order_id = o.id
+    WHERE d.status = 'delivered' AND o.status != 'delivered'
+);
+
+-- Étape 3: Mise à jour des dates de livraison manquantes
+-- Ajouter delivered_date aux livraisons qui ont le status 'delivered' mais pas de date
+UPDATE deliveries
+SET delivered_date = scheduled_date
+WHERE status = 'delivered' 
+  AND delivered_date IS NULL 
+  AND scheduled_date IS NOT NULL;
+
+-- Étape 4: Pour les livraisons sans scheduled_date, utiliser la date de création + 1 jour
+UPDATE deliveries
+SET delivered_date = DATE(created_at) + INTERVAL '1 day'
+WHERE status = 'delivered' 
+  AND delivered_date IS NULL 
+  AND scheduled_date IS NULL;
+
+-- Étape 5: Diagnostic final - Vérifier les résultats
+SELECT 
+    'RÉSULTAT FINAL' as status,
+    COUNT(*) as total_orders,
+    SUM(CASE WHEN status = 'delivered' THEN 1 ELSE 0 END) as delivered_orders,
+    SUM(CASE WHEN status = 'planned' THEN 1 ELSE 0 END) as planned_orders
+FROM orders;
+
+SELECT 
+    'LIVRAISONS MISES À JOUR' as status,
+    COUNT(*) as total_delivered_deliveries,
+    SUM(CASE WHEN delivered_date IS NOT NULL THEN 1 ELSE 0 END) as with_delivered_date,
+    SUM(CASE WHEN delivered_date IS NULL THEN 1 ELSE 0 END) as missing_delivered_date
+FROM deliveries 
+WHERE status = 'delivered';
+
+-- Afficher la commande CMD-55 spécifiquement
+SELECT 
+    'COMMANDE CMD-55' as status,
+    o.id,
+    o.status as order_status,
+    o.planned_date,
+    d.status as delivery_status, 
+    d.delivered_date,
+    d.scheduled_date,
+    s.name as supplier
+FROM orders o
+LEFT JOIN deliveries d ON d.order_id = o.id
+JOIN suppliers s ON o.supplier_id = s.id
+WHERE o.id = 55;