Combine URL generator classes into one

src/Http/UrlGenerator.php

@@ -0,0 +1,59 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Flarum\Http;
+
+use Flarum\Foundation\Application;
+
+class UrlGenerator
+{
+    /**
+     * @var array
+     */
+    protected $routes = [];
+
+    /**
+     * @param Application $app
+     */
+    public function __construct(Application $app)
+    {
+        $this->app = $app;
+    }
+
+    /**
+     * Register a named route collection for URL generation.
+     *
+     * @param string $key
+     * @param RouteCollection $routes
+     * @param string $prefix
+     * @return static
+     */
+    public function addCollection($key, RouteCollection $routes, $prefix = null)
+    {
+        $this->routes[$key] = new RouteCollectionUrlGenerator(
+            $this->app->url($prefix),
+            $routes
+        );
+
+        return $this;
+    }
+
+    /**
+     * Retrieve an URL generator instance for the given named route collection.
+     *
+     * @param string $collection
+     * @return RouteCollectionUrlGenerator
+     */
+    public function to($collection)
+    {
+        return $this->routes[$collection];
+    }
+}