app.js

const express = require('express');
const mongoose = require('mongoose');
const session = require('express-session');
const MongoStore = require('connect-mongo');
const methodOverride = require('method-override');
const path = require('path');
require('dotenv').config();

const authRoutes = require('./routes/auth');
const projectRoutes = require('./routes/projects');
const taskRoutes = require('./routes/tasks');
const dashboardRoutes = require('./routes/dashboard');

const app = express();

// Connect to MongoDB
mongoose.connect(process.env.MONGO_URL)
  .then(() => console.log('MongoDB connected'))
  .catch(err => console.log(err));

// Middleware
app.set('view engine', 'ejs');
app.set('views', path.join(__dirname, 'views'));
app.use(express.urlencoded({ extended: true }));
app.use(express.json());
app.use(methodOverride('_method'));
app.use(express.static(path.join(__dirname, 'public')));

// Session
app.use(session({
  secret: process.env.SESSION_SECRET || 'taskmanagersecret',
  resave: false,
  saveUninitialized: false,
  cookie: { maxAge: 1000 * 60 * 60 * 24 } // 1 day
}));

// Pass currentUser to all views
app.use((req, res, next) => {
  res.locals.currentUser = req.session.user || null;
  next();
});

// Routes
app.use('/auth', authRoutes);
app.use('/dashboard', dashboardRoutes);
app.use('/projects', projectRoutes);
app.use('/tasks', taskRoutes);

// Home redirect
app.get('/', (req, res) => {
  if (req.session.user) return res.redirect('/dashboard');
  res.redirect('/auth/login');
});

// 404
app.use((req, res) => {
  res.status(404).render('404', { title: '404 - Not Found' });
});

// Error handler
app.use((err, req, res, next) => {
  console.error(err.stack);
  res.status(500).render('error', { title: 'Error', message: err.message });
});

const PORT = process.env.PORT || 8080;
app.listen(PORT, () => console.log(`Server running on port ${PORT}`));