<?php

declare(strict_types=1);

namespace App\Framework\Database;

use App\Framework\Core\Events\EventDispatcher;
use App\Framework\Database\Cache\EntityCacheManager;
use App\Framework\Database\Config\DatabaseConfig;
use App\Framework\Database\Platform\MySQLPlatform;
use App\Framework\DateTime\Clock;
use App\Framework\DateTime\Timer;
use App\Framework\DI\Container;
use App\Framework\DI\Initializer;
use App\Framework\Logging\Logger;

final readonly class EntityManagerInitializer
{
    #[Initializer]
    public function __invoke(Container $container): EntityManager
    {
        $databaseConfig = $container->get(DatabaseConfig::class);
        $eventDispatcher = $container->get(EventDispatcher::class);
        $clock = $container->get(Clock::class);
        $timer = $container->get(Timer::class);

        // Get optional dependencies for profiling
        $logger = null;
        if ($databaseConfig->profilingConfig->enabled && $container->has(Logger::class)) {
            $logger = $container->get(Logger::class);
        }

        // Create platform for the database (defaulting to MySQL)
        $platform = new MySQLPlatform();

        $db = new DatabaseManager(
            $databaseConfig,
            $platform,
            $timer,
            'database/migrations',
            $clock,
            $logger,
            $eventDispatcher
        );

        $container->singleton(DatabaseManager::class, $db);

        // Only register ConnectionInterface if not already registered
        if (! $container->has(ConnectionInterface::class)) {
            // Lazy connection - only create when requested
            $container->singleton(ConnectionInterface::class, fn () => $db->getConnection());
        }

        // Get cache manager if caching is enabled
        $cacheManager = null;
        if ($databaseConfig->cacheConfig->enabled) {
            $cacheManager = $container->get(EntityCacheManager::class);
        }

        return EntityManagerFactory::create($db, $eventDispatcher, $clock, $container, $cacheManager);
    }
}