<?php
header('Content-Type: application/json; charset=UTF-8');
require_once '../auth_helper.php';
requireAdmin();
require_once '../db_connect.php';

$data = json_decode(file_get_contents('php://input'), true);

$id        = intval($data['id'] ?? 0);
$username  = trim($data['username'] ?? '');
$password  = trim($data['password'] ?? '');
$role      = trim($data['role'] ?? 'pengelola');
$ibadah_id = !empty($data['ibadah_id']) ? intval($data['ibadah_id']) : null;

if (!$id || empty($username)) {
    echo json_encode(['status' => 'error', 'message' => 'Data tidak lengkap']);
    exit;
}

if ($role !== 'admin' && $role !== 'pengelola') {
    echo json_encode(['status' => 'error', 'message' => 'Role tidak valid']);
    exit;
}

// Cek apakah username sudah ada di user lain
$stmt = $conn->prepare("SELECT id FROM users WHERE username = ? AND id != ?");
$stmt->bind_param('si', $username, $id);
$stmt->execute();
if ($stmt->get_result()->num_rows > 0) {
    echo json_encode(['status' => 'error', 'message' => 'Username sudah digunakan oleh user lain']);
    exit;
}

if (!empty($password)) {
    // Hash new password
    $hashed_password = password_hash($password, PASSWORD_BCRYPT);
    $stmt = $conn->prepare("UPDATE users SET username = ?, password = ?, role = ?, ibadah_id = ? WHERE id = ?");
    $stmt->bind_param('ssssi', $username, $hashed_password, $role, $ibadah_id, $id);
} else {
    // Keep existing password
    $stmt = $conn->prepare("UPDATE users SET username = ?, role = ?, ibadah_id = ? WHERE id = ?");
    $stmt->bind_param('sssi', $username, $role, $ibadah_id, $id);
}

if ($stmt->execute()) {
    echo json_encode(['status' => 'success', 'message' => 'User berhasil diperbarui']);
} else {
    echo json_encode(['status' => 'error', 'message' => 'Gagal memperbarui user: ' . $conn->error]);
}

$conn->close();
?>