Update server.js
This commit is contained in:
fcarraUniSa
153
server.js
153
server.js
@@ -1,3 +1,4 @@
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import express from 'express';
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import path from 'path';
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import { fileURLToPath } from 'url';
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@@ -14,12 +15,27 @@ const __dirname = path.dirname(__filename);
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const app = express();
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const PORT = process.env.PORT || 3000;
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// 1. CORS deve essere la prima cosa per gestire le richieste OPTIONS dei browser
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app.use(cors());
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app.use(express.json());
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app.options('*', cors());
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// 2. Logging immediato di ogni richiesta
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app.use((req, res, next) => {
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const start = Date.now();
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res.on('finish', () => {
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const duration = Date.now() - start;
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console.log(`[${new Date().toISOString()}] ${req.method} ${req.url} - Status: ${res.statusCode} (${duration}ms)`);
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});
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next();
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});
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// 3. Parser JSON con limite aumentato (fondamentale per template HTML grandi)
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app.use(express.json({ limit: '10mb' }));
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app.use(express.urlencoded({ limit: '10mb', extended: true }));
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// 4. File statici
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app.use(express.static(path.join(__dirname, 'dist')));
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// DB Configuration
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// Normalize DB_TYPE: allow 'postgres', 'postgresql', 'Postgres', etc.
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const rawDbType = (process.env.DB_TYPE || 'mysql').toLowerCase().trim();
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const DB_TYPE = (rawDbType === 'postgres' || rawDbType === 'postgresql') ? 'postgres' : 'mysql';
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@@ -31,83 +47,48 @@ const dbConfig = {
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port: process.env.DB_PORT || (DB_TYPE === 'postgres' ? 5432 : 3306),
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};
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// Debug Log: Print config to console (masking password)
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console.log('--- Database Configuration ---');
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console.log(`Type: ${DB_TYPE} (Input: ${process.env.DB_TYPE || 'default'})`);
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console.log(`Host: ${dbConfig.host}`);
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console.log(`User: ${dbConfig.user}`);
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console.log(`Database: ${dbConfig.database}`);
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console.log(`Port: ${dbConfig.port}`);
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console.log(`Password: ${dbConfig.password ? '******' : '(Not Set)'}`);
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console.log('------------------------------');
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console.log('--- App Version: 1.0.2 ---');
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console.log(`DB Type: ${DB_TYPE}`);
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console.log(`DB Host: ${dbConfig.host}`);
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let pool;
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// Initialize DB Connection
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const initDB = async () => {
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try {
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if (!dbConfig.host || !dbConfig.user || !dbConfig.database) {
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throw new Error("Missing required database environment variables (DB_HOST, DB_USER, or DB_NAME).");
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}
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const initDB = async (retries = 5) => {
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while (retries > 0) {
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try {
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if (!dbConfig.host || !dbConfig.user || !dbConfig.database) {
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throw new Error("Missing required database environment variables (DB_HOST, DB_USER, DB_NAME).");
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}
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if (DB_TYPE === 'postgres') {
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const { Pool } = pg;
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pool = new Pool(dbConfig);
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// Create table for Postgres
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// Using JSONB for variables
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await pool.query(`
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CREATE TABLE IF NOT EXISTS email_templates (
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id VARCHAR(255) PRIMARY KEY,
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template_key VARCHAR(255) UNIQUE NOT NULL,
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name VARCHAR(255) NOT NULL,
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description TEXT,
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subject VARCHAR(255),
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header_html TEXT,
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body_html TEXT,
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footer_html TEXT,
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full_html TEXT,
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required_variables JSONB,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
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);
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`);
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} else {
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// MySQL
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pool = mysql.createPool(dbConfig);
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// Create table for MySQL
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await pool.query(`
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CREATE TABLE IF NOT EXISTS email_templates (
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id VARCHAR(255) PRIMARY KEY,
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template_key VARCHAR(255) UNIQUE NOT NULL,
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name VARCHAR(255) NOT NULL,
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description TEXT,
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subject VARCHAR(255),
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header_html TEXT,
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body_html TEXT,
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footer_html TEXT,
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full_html TEXT,
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required_variables JSON,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP
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);
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`);
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if (DB_TYPE === 'postgres') {
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const { Pool } = pg;
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pool = new Pool(dbConfig);
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await pool.query('SELECT 1'); // Test connection
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} else {
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pool = mysql.createPool(dbConfig);
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await pool.query('SELECT 1'); // Test connection
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}
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console.log(`Connected to ${DB_TYPE} database successfully.`);
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return;
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} catch (err) {
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retries -= 1;
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console.error(`Database connection failed (${retries} retries left):`, err.message);
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if (retries === 0) {
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console.error("FATAL: Could not connect to database.");
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// Non usciamo per permettere al server di servire i file statici e mostrare errori via API
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} else {
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await new Promise(resolve => setTimeout(resolve, 5000));
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}
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}
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console.log(`Connected to ${DB_TYPE} database successfully.`);
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} catch (err) {
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console.error('Database connection failed:', err);
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process.exit(1);
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}
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};
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initDB();
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// API Routes
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// GET All Templates
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app.get('/api/templates', async (req, res) => {
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try {
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if (!pool) return res.status(503).json({ error: "Database not connected" });
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let rows;
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if (DB_TYPE === 'postgres') {
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const result = await pool.query('SELECT * FROM email_templates ORDER BY updated_at DESC');
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@@ -117,7 +98,6 @@ app.get('/api/templates', async (req, res) => {
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rows = result;
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}
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// Map DB fields back to frontend types
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const templates = rows.map(row => ({
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id: row.id,
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name: row.name,
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@@ -126,21 +106,24 @@ app.get('/api/templates', async (req, res) => {
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header: row.header_html,
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body: row.body_html,
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footer: row.footer_html,
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variables: typeof row.required_variables === 'string' ? JSON.parse(row.required_variables) : row.required_variables,
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variables: typeof row.required_variables === 'string' ? JSON.parse(row.required_variables) : (row.required_variables || []),
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updatedAt: row.updated_at
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}));
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res.json(templates);
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} catch (err) {
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console.error(err);
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res.status(500).json({ error: 'Failed to fetch templates' });
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console.error("Fetch Error:", err);
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res.status(500).json({ error: 'Failed to fetch templates', details: err.message });
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}
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});
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// SAVE (Upsert) Template
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app.post('/api/templates', async (req, res) => {
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const t = req.body;
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// Ensure default values to prevent undefined errors in Postgres
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if (!t.name || !t.id) {
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return res.status(400).json({ error: "Name and ID are required" });
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}
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const header = t.header || '';
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const body = t.body || '';
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const footer = t.footer || '';
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@@ -162,8 +145,9 @@ app.post('/api/templates', async (req, res) => {
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];
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try {
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if (!pool) throw new Error("Database not connected");
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if (DB_TYPE === 'postgres') {
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// Postgres requires explicit casting for JSONB parameters when passed as strings ($10::jsonb)
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const query = `
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INSERT INTO email_templates (id, template_key, name, description, subject, header_html, body_html, footer_html, full_html, required_variables, updated_at)
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VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10::jsonb, NOW())
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@@ -182,8 +166,8 @@ app.post('/api/templates', async (req, res) => {
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await pool.query(query, params);
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} else {
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const query = `
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INSERT INTO email_templates (id, template_key, name, description, subject, header_html, body_html, footer_html, full_html, required_variables, updated_at)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, NOW())
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INSERT INTO email_templates (id, template_key, name, description, subject, header_html, body_html, footer_html, full_html, required_variables)
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VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
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ON DUPLICATE KEY UPDATE
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template_key = VALUES(template_key),
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name = VALUES(name),
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@@ -193,22 +177,20 @@ app.post('/api/templates', async (req, res) => {
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body_html = VALUES(body_html),
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footer_html = VALUES(footer_html),
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full_html = VALUES(full_html),
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required_variables = VALUES(required_variables),
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updated_at = NOW();
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required_variables = VALUES(required_variables);
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`;
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await pool.query(query, params);
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}
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res.json({ success: true });
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} catch (err) {
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console.error("Save Template Error:", err);
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// Return specific error details to help debugging on the client
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res.status(500).json({ error: 'Failed to save template', details: err.message });
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console.error("DB Save Error:", err.message);
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res.status(500).json({ error: 'Database save failed', details: err.message });
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}
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});
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// DELETE Template
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app.delete('/api/templates/:id', async (req, res) => {
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try {
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if (!pool) return res.status(503).json({ error: "Database not connected" });
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if (DB_TYPE === 'postgres') {
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await pool.query('DELETE FROM email_templates WHERE id = $1', [req.params.id]);
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} else {
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@@ -216,16 +198,15 @@ app.delete('/api/templates/:id', async (req, res) => {
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}
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res.json({ success: true });
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} catch (err) {
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console.error(err);
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console.error("Delete Error:", err);
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res.status(500).json({ error: 'Failed to delete template' });
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}
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});
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// Handle React Routing
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app.get('*', (req, res) => {
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res.sendFile(path.join(__dirname, 'dist', 'index.html'));
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});
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app.listen(PORT, () => {
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app.listen(PORT, '0.0.0.0', () => {
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console.log(`Server running on port ${PORT}`);
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});
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