<?php
namespace App\Library;

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

    public function __destruct()
    {
        Logger::log(self::$logFile, "Подключение прервано!");
    }
    
    public function selectQuery(string $sql, array $params = []) : array
    {
        try {
            $stmt = $this->pdo->prepare($sql);
            // $params = array_values($params);
            for ($i = 0; $i < count($params); $i++) {
                $stmt->bindParam(":v".$i+1, $params[$i]);
            }
            $stmt->execute();
            $array = $stmt->fetchAll(PDO::FETCH_ASSOC);
        } catch (PDOException $e) {
            $message = "Ошибка запроса:" . $e->getMessage();
            Logger::log(self::$logFile, $message);
        } finally {
            return $array;
        }
    }

    public function insertQuery(string $sql, array $params)
    {
        try {
            $stmt = $this->pdo->prepare($sql);
            for ($i = 0; $i < count($params); $i++) {
                $stmt->bindParam(":spec_code".$i+1, $params[$i]['spec_code']);
                $stmt->bindParam(":spec_name".$i+1, $params[$i]['spec_name']);
                $stmt->bindParam(":edu_forms".$i+1, $params[$i]['edu_forms']);
                $stmt->bindParam(":edu_level".$i+1, $params[$i]['edu_level']);
                $stmt->bindParam(":contingent".$i+1, $params[$i]['contingent']);
                $stmt->bindParam(":org_id".$i+1, $params[$i]['org_id']);
                $stmt->bindParam(":spec_id".$i+1, $params[$i]['spec_id']);
            }
            $stmt->execute();
            Logger::log(self::$logFile, "Запрос выполнен успешно!");
        } catch (PDOException $e) {    
            $message = "Ошибка запроса:" . $e->getMessage();
            Logger::log(self::$logFile, $message);
        }
    }
}