<?php

namespace App\User;

use RuntimeException;

class EnvironmentInitialAdminCredentialsProvider implements
    InitialAdminCredentialsProvider
{
    public function getCredentials(): InitialAdminCredentials
    {
        return new InitialAdminCredentials(
            email: $this->requiredEnvironmentValue(
                'RABBI_GERZI_INITIAL_ADMIN_EMAIL',
            ),
            password: $this->requiredEnvironmentValue(
                'RABBI_GERZI_INITIAL_ADMIN_PASSWORD',
            ),
        );
    }

    private function requiredEnvironmentValue(string $key): string
    {
        $value = getenv($key);
        if (! is_string($value) || trim($value) === '') {
            throw new RuntimeException("$key is required");
        }

        return $value;
    }
}