<?php
namespace App\Library;

use App\Library\DatabaseConfig;
use PDOException;
use PDO;
class Database
{
    private PDO $pdo;
    public function __construct(DatabaseConfig $config)
    {
        try {
            $dsn = $config->getDsn();
            $username = $config->getUsername();
            $password = $config->getPassword();
            $this->pdo = new PDO(
                $dsn, 
                $username, 
                $password, 
                [PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION]
            );
            echo "Подлючено успешно!\n";
        } catch (PDOException $e) {
            echo "Ошибка подключения:". $e->getMessage() . "\n";
        }
    }

    public function __destruct()
    {
        echo "Подключение прервано!\n";
    }
    
    public function executeQuery(string $sql, array $params) : array|null
    {
        try {
            $stmt = $this->pdo->prepare($sql);
            $params = array_values($params);
            for ($i = 0; $i < count($params); $i++) { 
                $stmt->bindParam(":v".$i++, $params[$i]);
            }
            $stmt->execute();
            $array = $stmt->fetchAll(PDO::FETCH_ASSOC);
        } catch (PDOException $e) {
            echo "Ошибка запроса: " . $e->getMessage() . "\n";    
        } finally {
            return $array;
        }
    }
}