<?php
require_once __DIR__ . '/logger.php';

$config = require __DIR__ . '/../config/config.php';

try {
    $dsn = sprintf(
        'mysql:host=%s;dbname=%s;charset=%s',
        $config['db']['host'],
        $config['db']['name'],
        $config['db']['charset']
    );
    $pdo = new PDO($dsn, $config['db']['user'], $config['db']['pass'], [
        PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
        PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
        PDO::ATTR_EMULATE_PREPARES   => false,
    ]);
} catch (PDOException $e) {
    (new Logger('db'))->error('Database connection failed', ['error' => $e->getMessage()]);
    http_response_code(503);
    die(json_encode(['success' => false, 'message' => 'Database connection error.']));
}

return $pdo;