More tests.

app/Helpers/Help/Help.php

@@ -0,0 +1,85 @@
+<?php
+
+namespace FireflyIII\Helpers\Help;
+
+use Cache;
+use ErrorException;
+use League\CommonMark\CommonMarkConverter;
+use Log;
+use Route;
+
+/**
+ * Class Help
+ *
+ * @package FireflyIII\Helpers\Help
+ */
+class Help implements HelpInterface
+{
+
+    /**
+     * @param $key
+     *
+     * @return string
+     */
+    public function getFromCache($key)
+    {
+        return Cache::get($key);
+    }
+
+    /**
+     * @param $route
+     *
+     * @return array
+     */
+    public function getFromGithub($route)
+    {
+        $uri     = 'https://raw.githubusercontent.com/JC5/firefly-iii-help/master/' . e($route) . '.md';
+        $content = [
+            'text'  => '<p>There is no help for this route!</p>',
+            'title' => $route,
+        ];
+        try {
+            $content['text'] = file_get_contents($uri);
+        } catch (ErrorException $e) {
+            Log::error(trim($e->getMessage()));
+        }
+        if (strlen(trim($content['text'])) == 0) {
+            $content['text'] = '<p>There is no help for this route.</p>';
+        }
+        $converter       = new CommonMarkConverter();
+        $content['text'] = $converter->convertToHtml($content['text']);
+
+        return $content;
+
+    }
+
+    /**
+     * @return boolean
+     */
+    public function hasRoute($route)
+    {
+        return Route::has($route);
+    }
+
+    /**
+     * @param       $title
+     * @param array $content
+     *
+     * @return void
+     */
+    public function putInCache($route, array $content)
+    {
+        Cache::put('help.' . $route . '.text', $content['text'], 10080); // a week.
+        Cache::put('help.' . $route . '.title', $content['title'], 10080);
+    }
+
+    /**
+     * @param $route
+     *
+     * @return bool
+     */
+    public function inCache($route)
+    {
+        return Cache::has('help.' . $route . '.title') && Cache::has('help.' . $route . '.text');
+    }
+}