/**
 * Centralized configuration management for the application.
 * This file defines the schema and provides a type-safe way to access environment variables.
 */

export const config = {
  env: process.env.NODE_ENV || 'development',
  isProduction: process.env.NODE_ENV === 'production',
  isDevelopment: process.env.NODE_ENV === 'development',
  isTest: process.env.NODE_ENV === 'test',

  baseUrl: process.env.NEXT_PUBLIC_BASE_URL || 'http://localhost:3000',

  analytics: {
    umami: {
      websiteId: process.env.NEXT_PUBLIC_UMAMI_WEBSITE_ID,
      scriptUrl: process.env.UMAMI_SCRIPT_URL || 'https://analytics.infra.mintel.me/script.js',
      // The proxied path used in the frontend
      proxyPath: '/stats/script.js',
      enabled: Boolean(process.env.NEXT_PUBLIC_UMAMI_WEBSITE_ID),
    },
  },

  errors: {
    glitchtip: {
      // Use SENTRY_DSN for both server and client (proxied)
      dsn: process.env.SENTRY_DSN,
      // The proxied origin used in the frontend
      proxyPath: '/errors',
      enabled: Boolean(process.env.SENTRY_DSN),
    },
  },

  cache: {
    redis: {
      url: process.env.REDIS_URL,
      keyPrefix: process.env.REDIS_KEY_PREFIX || 'klz:',
      enabled: Boolean(process.env.REDIS_URL),
    },
  },

  logging: {
    level: process.env.LOG_LEVEL || 'info',
  },

  mail: {
    host: process.env.MAIL_HOST,
    port: parseInt(process.env.MAIL_PORT || '587', 10),
    user: process.env.MAIL_USERNAME,
    pass: process.env.MAIL_PASSWORD,
    from: process.env.MAIL_FROM,
    recipients: process.env.MAIL_RECIPIENTS?.split(',') || [],
  },

  woocommerce: {
    url: process.env.WOOCOMMERCE_URL,
    consumerKey: process.env.WOOCOMMERCE_CONSUMER_KEY,
    consumerSecret: process.env.WOOCOMMERCE_CONSUMER_SECRET,
  },

  wordpress: {
    appPassword: process.env.WORDPRESS_APP_PASSWORD,
  },
} as const;

/**
 * Helper to get a masked version of the config for logging.
 */
export function getMaskedConfig() {
  const mask = (val: string | undefined) => (val ? `***${val.slice(-4)}` : 'not set');

  return {
    env: config.env,
    baseUrl: config.baseUrl,
    analytics: {
      umami: {
        websiteId: mask(config.analytics.umami.websiteId),
        scriptUrl: config.analytics.umami.scriptUrl,
        enabled: config.analytics.umami.enabled,
      },
    },
    errors: {
      glitchtip: {
        dsn: mask(config.errors.glitchtip.dsn),
        enabled: config.errors.glitchtip.enabled,
      },
    },
    cache: {
      redis: {
        url: mask(config.cache.redis.url),
        keyPrefix: config.cache.redis.keyPrefix,
        enabled: config.cache.redis.enabled,
      },
    },
    logging: {
      level: config.logging.level,
    },
  };
}