<?php

namespace App\Services\Database;

use PDO;
use Exception;

class Connection
{
    private ?PDO $pdo = null;

    public function __construct()
    {
        $config = require __DIR__ . '/../../../config/database.php';
        
        $dsn = sprintf(
            "mysql:host=%s;port=%s;dbname=%s;charset=%s",
            $config['host'],
            $config['port'],
            $config['database'],
            $config['charset']
        );

        try {
            $this->pdo = new PDO($dsn, $config['username'], $config['password'], [
                PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
                PDO::ATTR_EMULATE_PREPARES => false,
            ]);
        } catch (\PDOException $e) {
            throw new Exception("Database connection failed: " . $e->getMessage());
        }
    }

    /**
     * Get active PDO instance.
     */
    public function getPdo(): PDO
    {
        return $this->pdo;
    }
}