import { Config } from '../types/index.js';
import path from 'path';
import { config as dotenvConfig } from 'dotenv';
import { fileURLToPath } from 'url';
import { dirname } from 'path';

const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

// Load .env file from root directory
dotenvConfig({ path: path.join(__dirname, '../../../.env') });

export const config: Config = {
  port: parseInt(process.env.PORT || '3000', 10),
  basePath: process.env.BASE_PATH || '/',
  maxmindDbPath: process.env.MAXMIND_DB_PATH || '/usr/share/GeoIP',
  seqUrl: process.env.SEQ_URL,
  seqApiKey: process.env.SEQ_API_KEY,
  apiKeys: {
    frontend: process.env.FRONTEND_API_KEY || 'frontend-default-key',
    external: (process.env.EXTERNAL_API_KEYS || 'external-default-key')
      .split(',')
      .map(key => key.trim()),
  },
  frontendAllowedOrigins: (
    process.env.FRONTEND_ALLOWED_ORIGINS || 'http://localhost:5173'
  )
    .split(',')
    .map(origin => origin.trim()),
  rateLimits: {
    frontend: {
      windowMs: parseInt(process.env.FRONTEND_RATE_WINDOW_MS || '60000', 10),
      max: parseInt(process.env.FRONTEND_RATE_MAX || '30', 10),
    },
    external: {
      windowMs: parseInt(process.env.EXTERNAL_RATE_WINDOW_MS || '60000', 10),
      max: parseInt(process.env.EXTERNAL_RATE_MAX || '1000', 10),
    },
  },
  batchLimit: parseInt(process.env.BATCH_LIMIT || '100', 10),
  debounceMs: parseInt(process.env.DEBOUNCE_MS || '2000', 10),
};

export default config;