<?php
session_start();

function isLoggedIn() {
    return !empty($_SESSION['user_id']);
}

function requireLogin() {
    if (!isLoggedIn()) {
        header('Location: login.php');
        exit;
    }
}

function requireApiLogin() {
    if (!isLoggedIn()) {
        header('Content-Type: application/json');
        http_response_code(401);
        echo json_encode([
            'success' => false,
            'message' => 'Belum login',
            'redirect' => 'login.php'
        ]);
        exit;
    }
}

function isAdmin()    { return ($_SESSION['role'] ?? '') === 'admin'; }
function isOperator() { return ($_SESSION['role'] ?? '') === 'operator'; }
function myIbadahId() { return (int)($_SESSION['id_ibadah'] ?? 0); }
function myUserId()   { return (int)($_SESSION['user_id']  ?? 0); }