import { z } from 'zod';

const envSchema = z.object({
  NEXT_PUBLIC_DJANGO_API_URL: z.string().url('NEXT_PUBLIC_DJANGO_API_URL must be a valid URL'),
  NEXT_PUBLIC_CLOUDFLARE_ACCOUNT_ID: z.string().optional(),
  NEXT_PUBLIC_CLOUDFLARE_IMAGE_URL: z.string().url().optional().or(z.literal('')),
});

function validateEnv() {
  try {
    return envSchema.parse({
      NEXT_PUBLIC_DJANGO_API_URL: process.env.NEXT_PUBLIC_DJANGO_API_URL,
      NEXT_PUBLIC_CLOUDFLARE_ACCOUNT_ID: process.env.NEXT_PUBLIC_CLOUDFLARE_ACCOUNT_ID,
      NEXT_PUBLIC_CLOUDFLARE_IMAGE_URL: process.env.NEXT_PUBLIC_CLOUDFLARE_IMAGE_URL,
    });
  } catch (error) {
    console.error('❌ Invalid environment variables:');
    if (error instanceof z.ZodError) {
      error.errors.forEach((err) => {
        console.error(`  - ${err.path.join('.')}: ${err.message}`);
      });
    }
    throw new Error('Environment validation failed');
  }
}

export const env = validateEnv();