const express = require('express');
const mongoose = require('mongoose');
const cors = require('cors');
const config = require('./config');
const setupContainer = require('./di/container');
const errorHandler = require('./middleware/errorHandler');
const keycloakAuthMiddleware = require('./middleware/auth.keycloak');

const legacyApiRoutes = require('./routes/api');

const app = express();

app.use(cors());
app.use(express.json());

const container = setupContainer();

const sequelize = container.resolve('sequelize');

mongoose
  .connect(config.database.mongo.uri, config.database.mongo.options)
  .then(() => console.log('Connected to MongoDB'))
  .catch(err => {
    console.error('MongoDB connection error:', err);
    process.exit(1);
  });

app.use('/api', keycloakAuthMiddleware(sequelize));

app.use('/api/legacy', legacyApiRoutes(sequelize));

const v1Routes = require('./routes/v1');

app.use('/api/v1', v1Routes(container));
app.use('/api', v1Routes(container));

const healthRoutes = require('./routes/health.routes');

app.use('/', healthRoutes({ sequelize, mongoose }));

app.use(errorHandler);

sequelize
  .authenticate()
  .then(() => {
    console.log('Connected to PostgreSQL');
    return sequelize.sync({ alter: true });
  })
  .then(() => {
    console.log('PostgreSQL models synchronized');
  })
  .then(() => {
    app.listen(config.port, () => {
      console.log(`Server is running on http://localhost:${config.port}`);
      console.log(`Environment: ${config.nodeEnv}`);
      console.log(`API v1 endpoints available at /api/v1/`);
      console.log(`Legacy endpoints available at /api/legacy/`);
      console.log(`Health check available at /health`);
    });
  })
  .catch(err => {
    console.error('PostgreSQL connection or sync error:', err);
    process.exit(1);
  });