firefly-iii/app/Http/Controllers/HelpController.php
2018-07-27 04:46:21 +02:00

127 lines
3.5 KiB
PHP

<?php
/**
* HelpController.php
* Copyright (c) 2017 thegrumpydictator@gmail.com
*
* This file is part of Firefly III.
*
* Firefly III is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Firefly III is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Firefly III. If not, see <http://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace FireflyIII\Http\Controllers;
use FireflyIII\Helpers\Help\HelpInterface;
use Illuminate\Http\JsonResponse;
use Log;
/**
* Class HelpController.
*/
class HelpController extends Controller
{
/** @var HelpInterface Help interface. */
private $help;
/**
* HelpController constructor.
*/
public function __construct()
{
parent::__construct();
$this->middleware(
function ($request, $next) {
$this->help = app(HelpInterface::class);
return $next($request);
}
);
}
/**
* Show help for a route.
*
* @param $route
*
* @return JsonResponse
*/
public function show(string $route): JsonResponse
{
/** @var string $language */
$language = app('preferences')->get('language', config('firefly.default_language', 'en_US'))->data;
$html = $this->getHelpText($route, $language);
return response()->json(['html' => $html]);
}
/**
* Gets the help text.
*
* @param string $route
* @param string $language
*
* @return string
* @SuppressWarnings(PHPMD.ExcessiveMethodLength)
* @SuppressWarnings(PHPMD.CyclomaticComplexity)
*/
private function getHelpText(string $route, string $language): string
{
// get language and default variables.
$content = '<p>' . trans('firefly.route_has_no_help') . '</p>';
// if no such route, log error and return default text.
if (!$this->help->hasRoute($route)) {
Log::error('No such route: ' . $route);
return $content;
}
// help content may be cached:
if ($this->help->inCache($route, $language)) {
$content = $this->help->getFromCache($route, $language);
Log::debug(sprintf('Help text %s was in cache.', $language));
return $content;
}
// get help content from Github:
$content = $this->help->getFromGitHub($route, $language);
// content will have 0 length when Github failed. Try en_US when it does:
if ('' === $content) {
$language = 'en_US';
// also check cache first:
if ($this->help->inCache($route, $language)) {
Log::debug(sprintf('Help text %s was in cache.', $language));
$content = $this->help->getFromCache($route, $language);
return $content;
}
$content = $this->help->getFromGitHub($route, $language);
}
// help still empty?
if ('' !== $content) {
$this->help->putInCache($route, $language, $content);
return $content;
}
return '<p>' . trans('firefly.route_has_no_help') . '</p>';
}
}