import dotenv from 'dotenv';
dotenv.config();

function require(key: string): string {
  const val = process.env[key];
  if (!val) throw new Error(`Missing required environment variable: ${key}`);
  return val;
}

export const config = {
  env:  process.env.NODE_ENV || 'production',
  port: parseInt(process.env.PORT || '4000', 10),
  host: process.env.HOST || '0.0.0.0',

  db: {
    host:     process.env.DB_HOST     || '127.0.0.1',
    port:     parseInt(process.env.DB_PORT || '3306', 10),
    user:     require('DB_USER'),
    password: require('DB_PASSWORD'),
    name:     require('DB_NAME'),
  },

  jwt: {
    secret:    require('JWT_SECRET'),
    expiresIn: process.env.JWT_EXPIRES_IN || '7d',
  },

  stripe: {
    secretKey:     require('STRIPE_SECRET_KEY'),
    webhookSecret: require('STRIPE_WEBHOOK_SECRET'),
    plans: {
      // Stripe Price IDs — set after creating products in Stripe dashboard
      solo_monthly:   process.env.STRIPE_PRICE_SOLO_MONTHLY   || '',
      solo_annual:    process.env.STRIPE_PRICE_SOLO_ANNUAL     || '',
      host_monthly:   process.env.STRIPE_PRICE_HOST_MONTHLY    || '',
      host_annual:    process.env.STRIPE_PRICE_HOST_ANNUAL     || '',
      agency_monthly: process.env.STRIPE_PRICE_AGENCY_MONTHLY  || '',
      agency_annual:  process.env.STRIPE_PRICE_AGENCY_ANNUAL   || '',
    },
  },

  licensingServer: {
    url:    require('LICENSING_SERVER_URL'),
    apiKey: require('LICENSING_SERVER_API_KEY'),
  },

  mail: {
    host:     process.env.MAIL_HOST     || 'smtp.mailgun.org',
    port:     parseInt(process.env.MAIL_PORT || '587', 10),
    user:     process.env.MAIL_USER     || '',
    password: process.env.MAIL_PASSWORD || '',
    from:     process.env.MAIL_FROM     || 'noreply@nixpanel.io',
  },

  appUrl: process.env.APP_URL || 'https://nixpanel.io',

  cors: {
    origin: process.env.CORS_ORIGIN || 'https://nixpanel.io',
  },
};