import { createEnv } from '@t3-oss/env-nextjs';
import { z } from 'zod';

export const env = createEnv({
  /**
   * Specify your shared environment variables schema here. This way you can ensure the app
   * isn't built with invalid env vars.
   */
  shared: {
    NODE_ENV: z
      .enum(['development', 'production', 'test'])
      .default('development'),
  },

  /**
   * Specify your server-side environment variables schema here. This way you can ensure the app
   * isn't built with invalid env vars.
   */
  server: {
    // Database
    DATABASE_URL: z.string().url(),
    // Resend
    RESEND_API_KEY: z.string().min(1).startsWith('re_'),
    RESEND_AUDIENCE_ID: z.string().min(1),
    EMAIL_FROM: z.string().email(),
    // Authentication
    BETTER_AUTH_SECRET:
      process.env.NODE_ENV === 'production'
        ? z.string().min(1)
        : z.string().min(1).optional(),
    BETTER_AUTH_URL: z.string().min(1).optional(),
    // Google
    GOOGLE_CLIENT_ID: z.string().min(1),
    GOOGLE_CLIENT_SECRET: z.string().min(1),
    // Github
    GITHUB_CLIENT_ID: z.string().min(1),
    GITHUB_CLIENT_SECRET: z.string().min(1),
    NODE_ENV: z
      .enum(['development', 'test', 'production'])
      .default('development'),
  },

  /**
   * Specify your client-side environment variables schema here. This way you can ensure the app
   * isn't built with invalid env vars. To expose them to the client, prefix them with
   * `NEXT_PUBLIC_`.
   */
  client: {
    // Analytics
    NEXT_PUBLIC_UMAMI_URL: z.string().url().optional(),
    NEXT_PUBLIC_UMAMI_WEBSITE_ID: z.string().uuid().optional(),
  },

  /**
   * You can't destruct `process.env` as a regular object in the Next.js edge runtimes (e.g.
   * middlewares) or client-side so we need to destruct manually.
   */
  experimental__runtimeEnv: {
    NODE_ENV: process.env.NODE_ENV,

    NEXT_PUBLIC_UMAMI_URL: process.env.NEXT_PUBLIC_UMAMI_URL,
    NEXT_PUBLIC_UMAMI_WEBSITE_ID: process.env.NEXT_PUBLIC_UMAMI_WEBSITE_ID,
  },
  /**
   * Run `build` or `dev` with `SKIP_ENV_VALIDATION` to skip env validation. This is especially
   * useful for Docker builds.
   */
  skipValidation: !!process.env.SKIP_ENV_VALIDATION,
  /**
   * Makes it so that empty strings are treated as undefined. `SOME_VAR: z.string()` and
   * `SOME_VAR=''` will throw an error.
   */
  emptyStringAsUndefined: true,
});