<?php

declare(strict_types=1);

namespace App\Core;

use Predis\Client;
use Exception;

final class Redis
{
    private static ?Client $instance = null;

    public static function getInstance(): Client
    {
        if (self::$instance === null) {
            try {
                self::$instance = new Client([
                    'scheme' => 'tcp',
                    'host'   => $_ENV['REDIS_HOST'] ?? '127.0.0.1',
                    'port'   => $_ENV['REDIS_PORT'] ?? 6379,
                    'password' => $_ENV['REDIS_PASSWORD'] ?: null,
                ]);
            } catch (Exception $e) {
                // If Redis fails, we might want to log it or handle gracefully
                // depending on how critical it is.
                throw new Exception("Redis Connection Error: " . $e->getMessage());
            }
        }

        return self::$instance;
    }
}