client.mjs

// @ts-check
import { clientEnv, clientSchema } from './schema.mjs';

const _clientEnv = clientSchema.safeParse(clientEnv);

export const formatErrors = (
  /** @type {import('zod').ZodFormattedError<Map<string,string>,string>} */
  errors,
) =>
  Object.entries(errors)
    .map(([name, value]) => {
      if (value && '_errors' in value) return `${name}: ${value._errors.join(', ')}\n`;
    })
    .filter(Boolean);

if (!_clientEnv.success) {
  console.error('❌ Invalid environment variables:\n', ...formatErrors(_clientEnv.error.format()));
  throw new Error('Invalid environment variables');
}

for (let key of Object.keys(_clientEnv.data)) {
  if (!key.startsWith('NEXT_PUBLIC_')) {
    console.warn(`❌ Invalid public environment variable name: ${key}. It must begin with 'NEXT_PUBLIC_'`);

    throw new Error('Invalid public environment variable name');
  }
}

export const env = _clientEnv.data;