<?php
// koneksi.php
session_start();

define('DB_HOST', 'localhost');
define('DB_USER', 'root');
define('DB_PASS', '');
define('DB_NAME', 'db_bantuan');
define('APP_NAME', 'WebGIS Poverty Mapping');
define('APP_VERSION', '2.0');

$conn = new mysqli(DB_HOST, DB_USER, DB_PASS, DB_NAME);
if ($conn->connect_error) {
    die(json_encode(['status'=>'error','message'=>'Koneksi DB gagal: '.$conn->connect_error]));
}
$conn->set_charset('utf8mb4');

// Helper: sanitasi
function bersih($str, $conn) {
    return $conn->real_escape_string(htmlspecialchars(strip_tags(trim($str))));
}

// Helper: cek login
function cekLogin() {
    if (!isset($_SESSION['user_id'])) {
        header('Location: login.php');
        exit;
    }
}

// Helper: cek role
function cekRole(...$roles) {
    if (!in_array($_SESSION['role'] ?? '', $roles)) {
        header('Location: index.php?error=akses_ditolak');
        exit;
    }
}

// Helper: format rupiah
function rupiah($angka) {
    return 'Rp ' . number_format($angka, 0, ',', '.');
}

// Helper: usia dari tanggal lahir
function hitungUsia($tgl) {
    if (!$tgl || $tgl === '0000-00-00') return '-';
    $lahir = new DateTime($tgl);
    $sekarang = new DateTime();
    return $lahir->diff($sekarang)->y . ' th';
}