/**
 * LandveX Intelligence Lab API
 *
 * Updated with API Key Management module.
 */

import express from 'express';
import cors from 'cors';
import helmet from 'helmet';

import missionImportRoutes from './routes/mission-import';
import versionRoutes from './routes/version';
import { createApiKeyRoutes } from './routes/api-keys';
import { ApiKeyService } from './services/api-key-service';
import { apiKeyAuth } from './middleware/api-key-auth';
import {
  PostgresApiKeyRepository,
  PostgresApiKeyUsageRepository,
  PostgresApiKeyConfig,
} from '../../infrastructure/src/adapters/postgresql/postgres-api-key-repository';

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

// PostgreSQL config from environment
const pgConfig: PostgresApiKeyConfig = {
  host: process.env.PG_HOST || 'localhost',
  port: parseInt(process.env.PG_PORT || '5432', 10),
  database: process.env.PG_DATABASE || 'landvex',
  user: process.env.PG_USER || 'landvex',
  password: process.env.PG_PASSWORD || '',
  ssl: process.env.PG_SSL === 'true' ? true : undefined,
};

// Initialize repositories and services
const apiKeyRepo = new PostgresApiKeyRepository(pgConfig);
const usageRepo = new PostgresApiKeyUsageRepository(pgConfig);
const apiKeyService = new ApiKeyService(apiKeyRepo, usageRepo);

// Initialize database tables (in production, use migrations instead)
async function initDatabase(): Promise<void> {
  await apiKeyRepo.init();
  await usageRepo.init();
}

// Middleware
app.use(helmet());
app.use(cors());
app.use(express.json());

// API Key authentication for protected routes
// Excludes health check, version, and admin API key management endpoints
app.use(apiKeyAuth({
  service: apiKeyService,
  excludePaths: ['/health', '/version', '/api-keys'],
}));

// Routes
app.use('/api/v1/missions', missionImportRoutes);
app.use('/version', versionRoutes);
app.use('/api-keys', createApiKeyRoutes(apiKeyService));

// Health check
app.get('/health', (_req, res) => {
  res.json({ status: 'ok', version: '0.2.0-apikeys' });
});

// Start server
async function start() {
  await initDatabase();

  app.listen(PORT, () => {
    console.log(`🚀 LandveX API running on port ${PORT}`);
    console.log(`📹 Mission Import: POST /api/v1/missions/import`);
    console.log(`🔑 API Key Mgmt:   POST /api-keys`);
    console.log(`🏥 Health Check:   GET /health`);
  });
}

if (require.main === module) {
  start().catch(err => {
    console.error('Failed to start server:', err);
    process.exit(1);
  });
}

export default app;