import { registerAs } from '@nestjs/config';

export const appConfig = registerAs('app', () => ({
  env: process.env.NODE_ENV || 'development',
  port: parseInt(process.env.PORT || '3000', 10),
  isDevelopment: process.env.NODE_ENV === 'development',
  isProduction: process.env.NODE_ENV === 'production',
}));

export const databaseConfig = registerAs('database', () => ({
  url: process.env.DATABASE_URL,
}));

export const jwtConfig = registerAs('jwt', () => ({
  secret: process.env.JWT_SECRET,
  accessExpiration: process.env.JWT_ACCESS_EXPIRATION || '15m',
  refreshExpiration: process.env.JWT_REFRESH_EXPIRATION || '7d',
}));

export const redisConfig = registerAs('redis', () => ({
  host: process.env.REDIS_HOST || 'localhost',
  port: parseInt(process.env.REDIS_PORT || '6379', 10),
  password: process.env.REDIS_PASSWORD || undefined,
}));

export const i18nConfig = registerAs('i18n', () => ({
  defaultLanguage: process.env.DEFAULT_LANGUAGE || 'en',
  fallbackLanguage: process.env.FALLBACK_LANGUAGE || 'en',
}));

export const featuresConfig = registerAs('features', () => ({
  mail: process.env.ENABLE_MAIL === 'true',
  s3: process.env.ENABLE_S3 === 'true',
  websocket: process.env.ENABLE_WEBSOCKET === 'true',
  multiTenancy: process.env.ENABLE_MULTI_TENANCY === 'true',
}));

export const mailConfig = registerAs('mail', () => ({
  host: process.env.MAIL_HOST,
  port: parseInt(process.env.MAIL_PORT || '587', 10),
  user: process.env.MAIL_USER,
  password: process.env.MAIL_PASSWORD,
  from: process.env.MAIL_FROM,
}));

export const s3Config = registerAs('s3', () => ({
  endpoint: process.env.S3_ENDPOINT,
  accessKey: process.env.S3_ACCESS_KEY,
  secretKey: process.env.S3_SECRET_KEY,
  bucket: process.env.S3_BUCKET,
  region: process.env.S3_REGION || 'us-east-1',
}));

export const throttleConfig = registerAs('throttle', () => ({
  ttl: parseInt(process.env.THROTTLE_TTL || '60000', 10),
  limit: parseInt(process.env.THROTTLE_LIMIT || '100', 10),
}));