From d3acae0f04bb28aa9c8a8b916ddc698acfe73a80 Mon Sep 17 00:00:00 2001
From: ssbg04 <143066036+ssbg04@users.noreply.github.com>
Date: Wed, 4 Jun 2025 11:24:10 +0800
Subject: [PATCH] Update index.js

---
 api/index.js | 136 ++++++++++++++++++++++++++++-----------------------
 1 file changed, 76 insertions(+), 60 deletions(-)

diff --git a/api/index.js b/api/index.js
index e95c4f2..f812b62 100644
--- a/api/index.js
+++ b/api/index.js
@@ -2,93 +2,109 @@ const express = require('express');
 const cors = require('cors');
 const path = require('path');
 const serverless = require('serverless-http');
-const db = require('./../firebase-config'); // make sure this works in Vercel
 
+// Load env variables locally
+require('dotenv').config();
+
+// --- Firebase Admin SDK Setup ---
+const admin = require('firebase-admin');
+
+let db;
+
+if (!admin.apps.length) {
+  try {
+    const serviceAccount = JSON.parse(process.env.FIREBASE_SERVICE_ACCOUNT);
+
+    admin.initializeApp({
+      credential: admin.credential.cert(serviceAccount),
+      // databaseURL optional unless using Realtime DB
+    });
+
+    db = admin.firestore();
+    console.log('✅ Firebase initialized');
+
+  } catch (error) {
+    console.error('❌ Firebase init error:', error);
+    throw new Error('Failed to initialize Firebase Admin SDK');
+  }
+} else {
+  db = admin.firestore();
+}
+
+// --- Express App ---
 const app = express();
 
 app.use(cors());
 app.use(express.json());
 app.use(express.static(path.join(__dirname, '../public')));
 
-// CREATE - Add a new user
+// Routes
+
+// CREATE
 app.post('/users', async (req, res) => {
-    try {
-        const { name, email } = req.body;
-        if (!name || !email) {
-            return res.status(400).json({ error: 'Name and email are required' });
-        }
+  try {
+    const { name, email } = req.body;
+    if (!name || !email) return res.status(400).json({ error: 'Name and email required' });
 
-        const docRef = await db.collection('users').add({ name, email });
-        res.status(201).json({ id: docRef.id, name, email });
-    } catch (err) {
-        res.status(500).json({ error: err.message });
-    }
+    const docRef = await db.collection('users').add({ name, email });
+    res.status(201).json({ id: docRef.id, name, email });
+
+  } catch (err) {
+    res.status(500).json({ error: err.message });
+  }
 });
 
-// READ - Get all users
+// READ all
 app.get('/users', async (req, res) => {
-    try {
-        const snapshot = await db.collection('users').get();
-        const users = [];
-        snapshot.forEach(doc => {
-            users.push({ id: doc.id, ...doc.data() });
-        });
-        res.json(users);
-    } catch (err) {
-        res.status(500).json({ error: err.message });
-    }
+  try {
+    const snapshot = await db.collection('users').get();
+    const users = snapshot.docs.map(doc => ({ id: doc.id, ...doc.data() }));
+    res.json(users);
+  } catch (err) {
+    res.status(500).json({ error: err.message });
+  }
 });
 
-// READ - Get a single user
+// READ one
 app.get('/users/:id', async (req, res) => {
-    try {
-        const userRef = db.collection('users').doc(req.params.id);
-        const doc = await userRef.get();
+  try {
+    const doc = await db.collection('users').doc(req.params.id).get();
+    if (!doc.exists) return res.status(404).json({ error: 'User not found' });
 
-        if (!doc.exists) {
-            return res.status(404).json({ error: 'User not found' });
-        }
-
-        res.json({ id: doc.id, ...doc.data() });
-    } catch (err) {
-        res.status(500).json({ error: err.message });
-    }
+    res.json({ id: doc.id, ...doc.data() });
+  } catch (err) {
+    res.status(500).json({ error: err.message });
+  }
 });
 
-// UPDATE - Update a user
+// UPDATE
 app.put('/users/:id', async (req, res) => {
-    try {
-        const { name, email } = req.body;
-        if (!name || !email) {
-            return res.status(400).json({ error: 'Name and email are required' });
-        }
+  try {
+    const { name, email } = req.body;
+    if (!name || !email) return res.status(400).json({ error: 'Name and email required' });
 
-        const userRef = db.collection('users').doc(req.params.id);
-        await userRef.update({ name, email });
-
-        res.json({ id: req.params.id, name, email });
-    } catch (err) {
-        res.status(500).json({ error: err.message });
-    }
+    await db.collection('users').doc(req.params.id).update({ name, email });
+    res.json({ id: req.params.id, name, email });
+  } catch (err) {
+    res.status(500).json({ error: err.message });
+  }
 });
 
-// DELETE - Delete a user
+// DELETE
 app.delete('/users/:id', async (req, res) => {
-    try {
-        const userRef = db.collection('users').doc(req.params.id);
-        await userRef.delete();
-
-        res.json({ message: 'User deleted successfully' });
-    } catch (err) {
-        res.status(500).json({ error: err.message });
-    }
+  try {
+    await db.collection('users').doc(req.params.id).delete();
+    res.json({ message: 'User deleted' });
+  } catch (err) {
+    res.status(500).json({ error: err.message });
+  }
 });
 
-// Serve index.html (optional — usually not needed in API routes)
+// Serve static HTML (optional)
 app.get('/', (req, res) => {
-    res.sendFile(path.join(__dirname, '../public', 'index.html'));
+  res.sendFile(path.join(__dirname, '../public', 'index.html'));
 });
 
-// Export for Vercel
+// Export for Vercel serverless
 module.exports = app;
 module.exports.handler = serverless(app);