<?php

declare(strict_types=1);

header('Content-Type: application/json; charset=utf-8');

require_once __DIR__ . '/../../../../src/Core/Db.php';
require_once __DIR__ . '/../../../../src/Modules/UpdateService/UpdateManager.php';

use Deploymentcenter\Core\Db;
use Deploymentcenter\Modules\UpdateService\UpdateManager;

function sendResponse(array $data, int $statusCode = 200): void {
    http_response_code($statusCode);
    echo json_encode($data, JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE | JSON_PRETTY_PRINT);
    exit;
}

try {
    $config = require __DIR__ . '/../../../../config/config.php';
    $pdo = Db::init($config);

    $uri = parse_url($_SERVER['REQUEST_URI'] ?? '/', PHP_URL_PATH);
    $method = strtoupper($_SERVER['REQUEST_METHOD'] ?? 'GET');

    $updateMgr = new UpdateManager($pdo);

    if (str_ends_with($uri, '/check') && ($method === 'GET' || $method === 'POST')) {
        $product = $_REQUEST['product'] ?? $_REQUEST['product_slug'] ?? '';
        $version = $_REQUEST['version'] ?? $_REQUEST['current_version'] ?? '0.0.0';

        if (empty($product)) {
            sendResponse(['error' => 'Bad Request', 'message' => 'Parameter "product" is required.'], 400);
        }

        $latest = $updateMgr->checkUpdate($product, $version);
        if ($latest) {
            sendResponse([
                'update_available' => true,
                'latest_release'   => $latest
            ]);
        } else {
            sendResponse([
                'update_available' => false,
                'message'          => 'Application is up to date.'
            ]);
        }
    }

    if (str_ends_with($uri, '/releases') && $method === 'GET') {
        $product = $_GET['product'] ?? null;
        $releases = $updateMgr->getReleases($product);
        sendResponse(['count' => count($releases), 'releases' => $releases]);
    }

    sendResponse(['error' => 'Not Found', 'message' => 'Endpoint not found'], 404);

} catch (Throwable $t) {
    sendResponse(['error' => 'Server Error', 'message' => $t->getMessage()], 500);
}