<?php
// ============================================================
//  config.php  —  Koneksi ke MySQL
//  Ganti nilai di bawah sesuai pengaturan XAMPP / phpMyAdmin
// ============================================================

define('DB_HOST', getenv('DB_HOST') ?: 'localhost');   
define('DB_NAME', getenv('DB_NAME') ?: 'gis_ptk'); // <--- Sudah diubah ke gis_ptk
define('DB_USER', getenv('DB_USER') ?: 'root');        
define('DB_PASS', getenv('DB_PASS') !== false ? getenv('DB_PASS') : '');            
define('DB_CHARSET', 'utf8mb4');

// ── Buat koneksi PDO ──────────────────────────────────────
function getDB(): PDO {
    static $pdo = null;
    if ($pdo === null) {
        $dsn = "mysql:host=" . DB_HOST . ";dbname=" . DB_NAME . ";charset=" . DB_CHARSET;
        $options = [
            PDO::ATTR_ERRMODE            => PDO::ERRMODE_EXCEPTION,
            PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
            PDO::ATTR_EMULATE_PREPARES   => false,
        ];
        try {
            $pdo = new PDO($dsn, DB_USER, DB_PASS, $options);
        } catch (PDOException $e) {
            http_response_code(500);
            echo json_encode(['error' => 'Koneksi database gagal: ' . $e->getMessage()]);
            exit;
        }
    }
    return $pdo;
}

// ── Header CORS & JSON (izinkan akses dari browser) ──────
header('Content-Type: application/json; charset=utf-8');
header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, POST, DELETE, OPTIONS');
header('Access-Control-Allow-Headers: Content-Type');

// Handle preflight OPTIONS request
if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
    http_response_code(204);
    exit;
}