get_libraries.php

<?php
declare(strict_types=1);

require_once __DIR__ . '/bootstrap.php';

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

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

$chatId = filter_input(INPUT_GET, 'chat_id', FILTER_SANITIZE_STRING);
$selectedMap = [];

if (!empty($chatId)) {
    $chatLibraries = get_chat_libraries($_SESSION['user_data']['userid'], $chatId);
    foreach ($chatLibraries as $lib) {
        $libId = (int)($lib['library_id'] ?? 0);
        if ($libId > 0) {
            $selectedMap[$libId] = [
                'selected' => true,
                'enabled' => !(isset($lib['enabled']) && !$lib['enabled']),
            ];
        }
    }
}

$libraries = get_available_libraries();
$output = [];
foreach ($libraries as $library) {
    $libId = (int)($library['id'] ?? 0);
    if ($libId <= 0) {
        continue;
    }
    $isSelected = isset($selectedMap[$libId]);
    $output[] = [
        'id' => $libId,
        'name' => (string)($library['name'] ?? ('Library ' . $libId)),
        'description' => (string)($library['description'] ?? ''),
        'type' => 'library',
        'prompt' => (string)($library['prompt'] ?? ''),
        'source' => (string)($library['source'] ?? 'library'),
        'ready' => (int)($library['ready'] ?? 0),
        'token_length' => (int)($library['library_token_length'] ?? 0),
        'full_text_available' => (int)($library['full_text_available'] ?? 0),
        'selected' => $isSelected,
        'enabled_in_chat' => $isSelected ? (bool)$selectedMap[$libId]['enabled'] : false,
    ];
}

echo json_encode(['libraries' => $output]);