Update homepage greeting

index.js

@@ -1,36 +1,241 @@
-const express = require('express')
-const path = require('path')
-
-const port = process.env.PORT || 5006
-
-const app = express()
-
-app.use(express.static(path.join(__dirname, 'public')))
-app.set('views', path.join(__dirname, 'views'))
-app.set('view engine', 'ejs')
-
-app.get('/', (req, res) => {
-  console.log(`Rendering 'pages/index' for route '/'`)
-  res.render('pages/index')
-})
-
-const server = app.listen(port, () => {
-  console.log(`Listening on ${port}`)
-})
-
-// The number of seconds an idle Keep-Alive connection is kept open. This should be greater than the Heroku Router's
-// Keep-Alive idle timeout of 90 seconds:
-// - to ensure that the closing of idle connections is always initiated by the router and not the Node.js server
-// - to prevent a race condition if the router sends a request to the app just as Node.js is closing the connection
-// https://devcenter.heroku.com/articles/http-routing#keepalives
-// https://nodejs.org/api/http.html#serverkeepalivetimeout
-server.keepAliveTimeout = 95 * 1000
-
-process.on('SIGTERM', async () => {
-  console.log('SIGTERM signal received: gracefully shutting down')
-  if (server) {
-    server.close(() => {
-      console.log('HTTP server closed')
-    })
+const axios = require("axios");
+
+const SCRIPT_URL = "PASTE_YOUR_NEW_GOOGLE_SCRIPT_URL_HERE";
+const UPI_ID = "8121893882-2@ybl";
+
+let sessions = {};
+
+module.exports = async (req, res) => {
+  const msg = req.body.data?.body?.trim();
+  const from = req.body.data?.from;
+  const name = req.body.data?.notifyName || "";
+
+  if (!sessions[from]) {
+    sessions[from] = { step: "MENU", phone: from, name };
+  }
+
+  const s = sessions[from];
+
+  // BACK OPTION
+  if (msg === "0") {
+    s.step = "MENU";
+  }
+
+  let reply = "";
+
+  switch (s.step) {
+
+    // ---------------- MENU ----------------
+    case "MENU":
+      reply =
+`🥛 *Welcome to Bala Milk Dairy*
+
+Please choose an option:
+1️⃣ Buffalo Milk – ₹100/L
+2️⃣ Cow Milk – ₹120/L
+3️⃣ Paneer – ₹600/Kg
+4️⃣ Ghee – ₹1000/Kg
+5️⃣ Daily Milk Subscription
+6️⃣ Enquiry Only
+
+Reply with option number.`;
+      s.step = "PRODUCT";
+      break;
+
+    // ---------------- PRODUCT ----------------
+    case "PRODUCT":
+      if (msg === "6") {
+        s.type = "Enquiry";
+        s.step = "ENQUIRY";
+        reply = "✍️ Please type your enquiry.\n\n0️⃣ Back";
+        break;
+      }
+
+      const products = {
+        "1": { name: "Buffalo Milk", price: 100 },
+        "2": { name: "Cow Milk", price: 120 },
+        "3": { name: "Paneer", price: 600 },
+        "4": { name: "Ghee", price: 1000 }
+      };
+
+      if (!products[msg]) {
+        reply = "❌ Invalid option.\n0️⃣ Back";
+        break;
+      }
+
+      s.product = products[msg];
+      reply =
+`🧾 *${s.product.name}*
+
+Choose quantity:
+1️⃣ 500ml – ₹${s.product.price / 2}
+2️⃣ 1 L – ₹${s.product.price}
+3️⃣ 2 L – ₹${s.product.price * 2}
+
+0️⃣ Back`;
+      s.step = "QUANTITY";
+      break;
+
+    // ---------------- QUANTITY ----------------
+    case "QUANTITY":
+      const qtyMap = {
+        "1": { q: "500ml", m: 0.5 },
+        "2": { q: "1L", m: 1 },
+        "3": { q: "2L", m: 2 }
+      };
+
+      if (!qtyMap[msg]) {
+        reply = "❌ Choose valid quantity.\n0️⃣ Back";
+        break;
+      }
+
+      s.quantity = qtyMap[msg].q;
+      s.price = s.product.price * qtyMap[msg].m;
+
+      reply =
+`📍 Delivery Address:
+1️⃣ Send live location
+2️⃣ Type address manually
+
+0️⃣ Back`;
+      s.step = "ADDRESS";
+      break;
+
+    // ---------------- ADDRESS ----------------
+    case "ADDRESS":
+      if (msg === "1") {
+        reply = "📌 Please share live location now.";
+        s.step = "LOCATION";
+      } else if (msg === "2") {
+        reply = "✍️ Please type your full address.\n\n0️⃣ Back";
+        s.step = "ADDRESS_TEXT";
+      } else {
+        reply = "❌ Invalid option.\n0️⃣ Back";
+      }
+      break;
+
+    case "ADDRESS_TEXT":
+      s.address = msg;
+      s.step = "DELIVERY";
+      reply =
+`⏰ Delivery Slot:
+1️⃣ Morning
+2️⃣ Evening
+
+0️⃣ Back`;
+      break;
+
+    case "LOCATION":
+      s.address = "Live Location Shared";
+      s.step = "DELIVERY";
+      reply =
+`⏰ Delivery Slot:
+1️⃣ Morning
+2️⃣ Evening
+
+0️⃣ Back`;
+      break;
+
+    // ---------------- DELIVERY ----------------
+    case "DELIVERY":
+      if (msg === "1") s.delivery = "Morning";
+      else if (msg === "2") s.delivery = "Evening";
+      else {
+        reply = "❌ Invalid option.\n0️⃣ Back";
+        break;
+      }
+
+      reply =
+`🕒 Enter delivery time (example: 6:30 AM)\n\n0️⃣ Back`;
+      s.step = "TIME";
+      break;
+
+    case "TIME":
+      s.deliveryTime = `${s.delivery} ${msg}`;
+      reply =
+`💰 Payment Method:
+1️⃣ UPI
+2️⃣ Cash on Delivery
+
+0️⃣ Back`;
+      s.step = "PAYMENT";
+      break;
+
+    // ---------------- PAYMENT ----------------
+    case "PAYMENT":
+      if (msg === "1") {
+        s.payment = "UPI";
+        reply =
+`💳 Pay using UPI:
+👉 ${UPI_ID}
+
+📸 After payment, send screenshot.
+
+0️⃣ Back`;
+        s.step = "SCREENSHOT";
+      } else if (msg === "2") {
+        s.payment = "Cash on Delivery";
+        await saveToSheet(s, "COD");
+        reply =
+`✅ Order Confirmed!
+
+🙏 Thank you for ordering from *Bala Milk Dairy* 🥛`;
+        delete sessions[from];
+      } else {
+        reply = "❌ Invalid option.\n0️⃣ Back";
+      }
+      break;
+
+    // ---------------- SCREENSHOT ----------------
+    case "SCREENSHOT":
+      await saveToSheet(s, "UPI Screenshot");
+      reply =
+`✅ Payment received!
+
+🙏 Thank you for ordering from *Bala Milk Dairy* 🥛`;
+      delete sessions[from];
+      break;
+
+    // ---------------- ENQUIRY ----------------
+    case "ENQUIRY":
+      await saveToSheet({
+        phone: s.phone,
+        name: s.name,
+        type: "Enquiry",
+        product: msg
+      }, "Enquiry");
+
+      reply =
+`🙏 Thank you for contacting *Bala Milk Dairy*.
+We will get back to you soon.`;
+      delete sessions[from];
+      break;
   }
-})
+
+  await sendMessage(from, reply);
+  res.sendStatus(200);
+};
+
+// -------- SEND MESSAGE ----------
+async function sendMessage(to, body) {
+  await axios.post(process.env.WHATSAPP_API_URL, {
+    to,
+    body
+  });
+}
+
+// -------- SAVE TO GOOGLE SHEET ----------
+async function saveToSheet(s, method) {
+  await axios.post(SCRIPT_URL, {
+    OrderId: "ORD-" + Date.now(),
+    Phone: s.phone,
+    ContactName: s.name,
+    Type: s.type || "Payment",
+    Product: s.product?.name || "",
+    Quantity: s.quantity || "",
+    Price: s.price || "",
+    Address: s.address || "",
+    Delivery: s.deliveryTime || "",
+    Payment: method
+  });
+}

package.json

@@ -1,30 +1,16 @@
 {
-  "name": "nodejs-getting-started",
-  "private": true,
-  "description": "A sample Node.js app using Express",
-  "engines": {
-    "node": "20.x || 22.x || 24.x"
-  },
+  "name": "bala-whatsapp-bot",
+  "version": "1.0.0",
+  "description": "WhatsApp Cloud API bot for Bala Milk Store",
   "main": "index.js",
   "scripts": {
-    "start": "node index.js",
-    "test": "jest"
-  },
-  "dependencies": {
-    "ejs": "^3.1.10",
-    "express": "^5.2.1"
+    "start": "node index.js"
   },
-  "devDependencies": {
-    "jest": "^30.2.0"
-  },
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/heroku/nodejs-getting-started"
+  "engines": {
+    "node": ">=18"
   },
-  "keywords": [
-    "node",
-    "heroku",
-    "express"
-  ],
-  "license": "MIT"
+  "dependencies": {
+    "axios": "^1.6.2",
+    "express": "^4.18.2"
+  }
 }

views/pages/index.ejs

@@ -13,7 +13,7 @@
     <a href="/" class="lang-logo">
       <img src="/lang-logo.png">
     </a>
-    <h1>Getting Started on Heroku with Node.js</h1>
+    <h1>Hello from Balaraju 🚀</h1>
     <p>This is a sample Node application deployed to Heroku. It's a reasonably simple app - but a good foundation for understanding how to get the most out of the Heroku platform.</p>
     <a type="button" class="btn btn-lg btn-default" href="https://devcenter.heroku.com/articles/getting-started-with-nodejs"><span class="glyphicon glyphicon-flash"></span> Getting Started on Heroku with Node.js</a>
     <a type="button" class="btn btn-lg btn-default" href="https://devcenter.heroku.com/articles/getting-started-with-nodejs-fir"><span class="glyphicon glyphicon-flash"></span> Getting Started on Heroku Fir with Node.js</a>