Started work on generating API docs

app/Http/Controllers/Api/ApiDocsController.php

@@ -0,0 +1,47 @@
+<?php namespace BookStack\Http\Controllers\Api;
+
+use BookStack\Api\ApiDocsGenerator;
+use Cache;
+use Illuminate\Support\Collection;
+
+class ApiDocsController extends ApiController
+{
+
+    /**
+     * Load the docs page for the API.
+     */
+    public function display()
+    {
+        $docs = $this->getDocs();
+        dd($docs);
+        // TODO - Build view for API docs
+        return view('');
+    }
+
+    /**
+     * Show a JSON view of the API docs data.
+     */
+    public function json() {
+        $docs = $this->getDocs();
+        return response()->json($docs);
+    }
+
+    /**
+     * Get the base docs data.
+     * Checks and uses the system cache for quick re-fetching.
+     */
+    protected function getDocs(): Collection
+    {
+        $appVersion = trim(file_get_contents(base_path('version')));
+        $cacheKey = 'api-docs::' . $appVersion;
+        if (Cache::has($cacheKey) && config('app.env') === 'production') {
+            $docs = Cache::get($cacheKey);
+        } else {
+            $docs = (new ApiDocsGenerator())->generate();
+            Cache::put($cacheKey, $docs, 60*24);
+        }
+
+        return $docs;
+    }
+
+}