server.js

require('dotenv').config();
const express = require('express');
const cors = require('cors');
const path = require('path');
const fs = require('fs');

const authRoutes = require('./routes/auth');
const examRoutes = require('./routes/exams');
const submissionRoutes = require('./routes/submissions');
const compilerRoutes = require('./routes/compiler');
const behaviorRoutes = require('./routes/behavior');

const app = express();
const PORT = process.env.PORT || 3000;

// Garante pasta temp pra compilação
const tempDir = path.join(__dirname, 'temp');
if (!fs.existsSync(tempDir)) fs.mkdirSync(tempDir, { recursive: true });

app.use(cors({
  origin: process.env.NODE_ENV === 'production'
    ? process.env.ALLOWED_ORIGIN
    : '*',
  methods: ['GET', 'POST', 'PUT', 'DELETE', 'PATCH'],
  allowedHeaders: ['Content-Type', 'Authorization'],
}));

app.use(express.json({ limit: '2mb' }));
app.use(express.urlencoded({ extended: true }));
app.use(express.static(path.join(__dirname, 'public')));

app.use('/api/auth', authRoutes);
app.use('/api/exams', examRoutes);
app.use('/api/submissions', submissionRoutes);
app.use('/api/compiler', compilerRoutes);
app.use('/api/behavior', behaviorRoutes);

app.get('/', (req, res) => {
  res.sendFile(path.join(__dirname, 'public', 'index.html'));
});

app.get('/secret', (req, res) => {
  res.sendFile(path.join(__dirname, 'public', 'secret', 'index.html'));
});

app.get('/secret/*', (req, res) => {
  res.sendFile(path.join(__dirname, 'public', 'secret', 'index.html'));
});

app.use((req, res) => {
  res.status(404).json({ error: 'Rota não encontrada' });
});

app.use((err, req, res, next) => {
  console.error('[ERRO]', err.stack);
  res.status(500).json({ error: 'Erro interno do servidor' });
});

app.listen(PORT, () => {
  console.log(`✅ WEProg rodando na porta ${PORT}`);
  console.log(`   Ambiente: ${process.env.NODE_ENV}`);
});