toggle_library.php

<?php
declare(strict_types=1);

require_once __DIR__ . '/bootstrap.php';

header('Content-Type: application/json');

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    http_response_code(405);
    echo json_encode(['error' => 'Method not allowed']);
    exit;
}

if (empty($_SESSION['user_data']['userid']) || empty($_SESSION['authorized'])) {
    http_response_code(401);
    echo json_encode(['error' => 'Authentication required']);
    exit;
}

$payload = json_decode(file_get_contents('php://input') ?: '[]', true);
$chatId = isset($payload['chat_id']) ? trim((string)$payload['chat_id']) : '';
$libraryId = isset($payload['library_id']) ? (int)$payload['library_id'] : 0;
$requestedState = $payload['enabled'] ?? null;

if ($chatId === '' || $libraryId <= 0) {
    http_response_code(400);
    echo json_encode(['error' => 'chat_id and library_id are required']);
    exit;
}

try {
    $newState = toggle_library_for_chat($_SESSION['user_data']['userid'], $chatId, $libraryId, $requestedState);
    if ($newState === null) {
        http_response_code(404);
        echo json_encode(['error' => 'Library selection not found for this chat']);
        exit;
    }

    echo json_encode([
        'ok' => true,
        'chat_id' => $chatId,
        'library_id' => $libraryId,
        'enabled' => (bool)$newState,
    ]);
} catch (Throwable $e) {
    error_log('toggle_library error: ' . $e->getMessage());
    http_response_code(500);
    echo json_encode(['error' => 'Unable to toggle library']);
}