import 'dotenv/config';

const home = process.env.HOME || process.env.USERPROFILE || '';
const defaultGrokBin = process.env.GROK_BIN
  || (home ? `${home}/.grok/bin/grok` : '')
  || '/usr/local/bin/grok';

export const env = {
  port: parseInt(process.env.PORT || '3000', 10),
  nodeEnv: process.env.NODE_ENV || 'development',
  appUrl: process.env.APP_URL || 'https://tesla-roadtrip.test',
  apiUrl: process.env.API_URL || 'https://api.tony.codes',

  // Auth
  authSecret: process.env.AUTH_SECRET || '',
  authUrl: process.env.AUTH_URL || 'https://auth.tony.codes',
  authClientId: process.env.AUTH_CLIENT_ID || 'tesla-roadtrip',

  // Database (optional — trips persist to memory if unset)
  databaseUrl: process.env.DATABASE_URL || '',

  // Grok / xAI — local personal CLI (your authenticated Heavy account) is preferred for development
  grokBin: defaultGrokBin,
  xaiApiKey: process.env.XAI_API_KEY || '',
  grokEnabled: process.env.GROK_ENABLED !== 'false',
  forceXaiApi: process.env.FORCE_XAI_API === 'true',

  // Owner auth — single-user gate for the Tesla integration until
  // auth.tony.codes is wired in. Set OWNER_SECRET to a long random string.
  ownerSecret: process.env.OWNER_SECRET || '',

  // Tesla Fleet API
  tesla: {
    // Public key served at /.well-known/appspecific/com.tesla.3p.public-key.pem
    // for domain verification. Set TESLA_FLEET_PUBLIC_KEY to the PEM contents
    // (multi-line; can include literal newlines).
    publicKey: process.env.TESLA_FLEET_PUBLIC_KEY || '',
    // OAuth client credentials Tesla gives you after partner approval.
    clientId: process.env.TESLA_FLEET_CLIENT_ID || '',
    clientSecret: process.env.TESLA_FLEET_CLIENT_SECRET || '',
    // Where Tesla redirects after the user authorises.
    redirectUri: process.env.TESLA_FLEET_REDIRECT_URI || 'https://roadtrip.tony.codes/api/auth/tesla/callback',
    // Region: 'eu' or 'na'.
    region: (process.env.TESLA_FLEET_REGION || 'eu') as 'eu' | 'na',
  },
} as const;