export interface Config {
  databaseUrl: string
  port: number
  /** Public URL users open in their browser; HTTPS here turns on secure cookies. */
  publicUrl: string
  secureCookies: boolean
  production: boolean
  /** Built web app to serve, if present. */
  staticDir: string
}

export function loadConfig(env: NodeJS.ProcessEnv = process.env): Config {
  const publicUrl = env.PUBLIC_URL ?? `http://localhost:${env.PORT ?? 3000}`
  return {
    databaseUrl: env.DATABASE_URL ?? 'pglite://./data/pglite',
    port: Number(env.PORT ?? 3000),
    publicUrl,
    secureCookies: publicUrl.startsWith('https://'),
    production: env.NODE_ENV === 'production',
    staticDir: env.STATIC_DIR ?? 'dist',
  }
}