require('dotenv').config();
const express = require('express');
const cors = require('cors');
const helmet = require('helmet');
const rateLimit = require('express-rate-limit');
const cookieParser = require('cookie-parser');
const path = require('path');
const http = require('http');
const loggingMiddleware = require('./src/middleware/logging');

const app = express();
const server = http.createServer(app);

app.use(helmet({ contentSecurityPolicy: false, crossOriginEmbedderPolicy: false }));
app.use(cors());
app.use(cookieParser());
app.use(express.json({ limit: '50mb' }));
app.use('/api/', rateLimit({ windowMs: 60000, max: 60, message: { error: 'Too many requests' } }));
app.use(loggingMiddleware);
app.use(express.static(path.join(__dirname, 'public')));

// Routes
app.use('/api/auth', require('./src/routes/auth'));
app.use('/api/admin', require('./src/routes/admin'));
app.use('/api', require('./src/routes/transcribe'));
app.use('/api', require('./src/routes/hpi'));
app.use('/api', require('./src/routes/hospitalCourse'));
app.use('/api', require('./src/routes/chartReview'));
app.use('/api', require('./src/routes/milestones'));
app.use('/api', require('./src/routes/soap'));
app.use('/api', require('./src/routes/tts'));
app.use('/api', require('./src/routes/nextcloud'));
app.use('/api', require('./src/routes/refine'));
app.use('/api', require('./src/routes/logs'));

const { getAvailableModels, activeProvider: modelsProvider } = require('./src/utils/models');
app.get('/api/models', (req, res) => res.json({ models: getAvailableModels(), provider: modelsProvider }));

const { activeProvider } = require('./src/utils/ai');
app.get('/api/health', (req, res) => {
  res.json({
    status: 'running', version: '2.1.0', provider: activeProvider,
    timestamp: new Date().toISOString(),
    openrouter: process.env.OPENROUTER_API_KEY ? 'configured' : 'missing',
    bedrock: process.env.AWS_BEDROCK_REGION ? 'configured' : 'not configured',
    azure: process.env.AZURE_OPENAI_ENDPOINT ? 'configured' : 'not configured',
    whisper: process.env.OPENAI_API_KEY ? 'configured' : 'missing'
  });
});

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

const PORT = process.env.PORT || 3000;
server.listen(PORT, () => {
  console.log('');
  console.log('==========================================');
  console.log('🏥 PEDIATRIC AI SCRIBE v2.1');
  console.log('==========================================');
  console.log('🌐 http://localhost:' + PORT);
  console.log('🤖 Provider: ' + activeProvider);
  console.log('==========================================');
});