<?php

final class Database
{
    private static ?PDO $pdo = null;

    public static function pdo(): PDO
    {
        if (self::$pdo === null) {
            $host = Config::get('db.host');
            $name = Config::get('db.name');
            $user = Config::get('db.user');
            $pass = Config::get('db.pass');

            $dsn = "mysql:host={$host};dbname={$name};charset=utf8mb4";
            self::$pdo = new PDO($dsn, $user, $pass, [
                PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
                PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
                PDO::ATTR_EMULATE_PREPARES   => false,
            ]);
        }

        return self::$pdo;
    }
}