From 440c8cee1fcfaffc0ae3699877a10d6303fdfcfc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cau=C3=AA=20Faleiros?= <cauefaleiros@gmail.com>
Date: Wed, 27 May 2026 16:31:26 -0300
Subject: [PATCH] combine ready products in campaign payload

---
 backend/services/campaignService.js | 84 +++++++++++++++++++----------
 1 file changed, 56 insertions(+), 28 deletions(-)

diff --git a/backend/services/campaignService.js b/backend/services/campaignService.js
index 1ec26da..ac99730 100644
--- a/backend/services/campaignService.js
+++ b/backend/services/campaignService.js
@@ -111,21 +111,51 @@ const updateCampaignItemsStatus = async (ids, status, errorMessage = null) => {
     `, [status, errorMessage, ids]);
 };
 
-const sendWhatsappCampaign = async (baseProductName, items, customers) => {
-    const totalDelta = items.reduce((sum, item) => sum + Number(item.delta_estoque || 0), 0);
+const formatProductList = (productNames) => {
+    if (productNames.length <= 2) {
+        return productNames.join(' e ');
+    }
+
+    return `${productNames.slice(0, -1).join(', ')} e ${productNames[productNames.length - 1]}`;
+};
+
+const mapCampaignProducts = (groups) => {
+    return Object.entries(groups)
+        .sort(([, aItems], [, bItems]) => {
+            return new Date(aItems[0].created_at).getTime() - new Date(bItems[0].created_at).getTime();
+        })
+        .map(([baseProductName, items]) => {
+            const sortedItems = [...items].sort((a, b) => String(a.nome).localeCompare(String(b.nome), 'pt-BR'));
+
+            return {
+                baseProduct: baseProductName,
+                total_delta: sortedItems.reduce((sum, item) => sum + Number(item.delta_estoque || 0), 0),
+                sizes: sortedItems.map(item => ({
+                    id: item.produto_id,
+                    nome: item.nome,
+                    delta: item.delta_estoque,
+                    saldo: item.saldo
+                })),
+                itemIds: sortedItems.map(item => item.id)
+            };
+        });
+};
+
+const sendWhatsappCampaign = async (products, customers) => {
+    const productNames = products.map(product => product.baseProduct);
+    const productsText = formatProductList(productNames);
+    const allSizes = products.flatMap(product => product.sizes);
+    const totalDelta = products.reduce((sum, product) => sum + product.total_delta, 0);
 
     const response = await fetch(N8N_WHATSAPP_TRIGGER_URL, {
         method: 'POST',
         headers: { 'Content-Type': 'application/json' },
         body: JSON.stringify({
-            baseProduct: baseProductName,
+            baseProduct: productsText,
+            productsText,
             total_delta: totalDelta,
-            sizes: items.map(item => ({
-                id: item.produto_id,
-                nome: item.nome,
-                delta: item.delta_estoque,
-                saldo: item.saldo
-            })),
+            sizes: allSizes,
+            products: products.map(({ itemIds, ...product }) => product),
             customers
         })
     });
@@ -149,32 +179,30 @@ const processPendingStockCampaigns = async () => {
         return summary;
     }
 
-    const customers = await getTopBuyersAllTime();
     const groups = rows.reduce((acc, row) => {
         if (!acc[row.base_product_name]) acc[row.base_product_name] = [];
         acc[row.base_product_name].push(row);
         return acc;
     }, {});
+    const products = mapCampaignProducts(groups);
+    const ids = products.flatMap(product => product.itemIds);
+    const customers = await getTopBuyersAllTime();
 
-    for (const [baseProductName, items] of Object.entries(groups)) {
-        const ids = items.map(item => item.id);
+    if (!customers.length) {
+        await updateCampaignItemsStatus(ids, 'skipped', 'No customers with valid phone numbers found.');
+        summary.skippedGroups = products.length;
+        return summary;
+    }
 
-        if (!customers.length) {
-            await updateCampaignItemsStatus(ids, 'skipped', 'No customers with valid phone numbers found.');
-            summary.skippedGroups += 1;
-            continue;
-        }
-
-        try {
-            await sendWhatsappCampaign(baseProductName, items, customers);
-            await updateCampaignItemsStatus(ids, 'sent');
-            summary.sentGroups += 1;
-            console.log(`[Campaign Queue] Sent ${baseProductName} campaign to ${customers.length} all-time top buyers.`);
-        } catch (error) {
-            await updateCampaignItemsStatus(ids, 'failed', error.message);
-            summary.failedGroups += 1;
-            console.error(`[Campaign Queue] Failed to send ${baseProductName} campaign:`, error);
-        }
+    try {
+        await sendWhatsappCampaign(products, customers);
+        await updateCampaignItemsStatus(ids, 'sent');
+        summary.sentGroups = products.length;
+        console.log(`[Campaign Queue] Sent one campaign with ${products.length} products to ${customers.length} all-time top buyers.`);
+    } catch (error) {
+        await updateCampaignItemsStatus(ids, 'failed', error.message);
+        summary.failedGroups = products.length;
+        console.error('[Campaign Queue] Failed to send product list campaign:', error);
     }
 
     return summary;