From 258b1545c3b28bb44ddc7b23493debc28446541f Mon Sep 17 00:00:00 2001
From: Jordan Johnson-Doyle <jordan@doyle.la>
Date: Mon, 25 Feb 2019 22:19:35 +0000
Subject: [PATCH] Add routing method for posts page

---
 src/Routing/PostsRoute.php             | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/Routing/Routing.php                | 13 +++++++++++++
 src/Routing/RoutingServiceProvider.php |  1 +
 3 files changed, 87 insertions(+)

diff --git a/src/Routing/PostsRoute.php b/src/Routing/PostsRoute.php
index e69de29..291ded7 100644
--- a/src/Routing/PostsRoute.php
+++ b/src/Routing/PostsRoute.php
@@ -0,0 +1,73 @@
+<?php
+namespace Koselig\Routing;
+
+use Illuminate\Routing\Exceptions\UrlGenerationException;
+use Illuminate\Routing\Route;
+use Illuminate\Http\Request;
+use Koselig\Http\Request as KoseligRequest;
+use Koselig\Models\Post;
+use Koselig\Support\Wordpress;
+use ReflectionFunction;
+
+/**
+ * Posts route, this route is matched when the user visits the 'posts page' set in
+ * the Reading Settings.
+ *
+ * @author Jordan Doyle <jordan@doyle.wf>
+ */
+class PostsRoute extends Route
+{
+    /**
+     * Create a new Route instance.
+     *
+     * @param  array|string $methods
+     * @param  \Closure|array $action
+     *
+     * @return void
+     */
+    public function __construct($methods, $action)
+    {
+        if (!get_option('page_for_posts')) {
+            trigger_error('Attempted to define a posts route when the posts page isn\'t set. Set it in the Reading Settings in Wordpress.', E_USER_NOTICE);
+        }
+
+        parent::__construct($methods, wp_make_link_relative(get_permalink(get_option('page_for_posts'))) ?: '/posts', $action);
+    }
+
+    /**
+     * Determine if the route matches given request.
+     *
+     * @param  Request $request
+     * @param  bool $includingMethod
+     *
+     * @return bool
+     */
+    public function matches(Request $request, $includingMethod = true)
+    {
+        return query()->isPostsPage ?? false;
+    }
+
+    /**
+     * Run the route action and return the response.
+     *
+     * @return mixed
+     */
+    protected function runCallable()
+    {
+        // bind the current post to the parameters of the function
+        $function = new ReflectionFunction($this->action['uses']);
+        $params = $function->getParameters();
+
+        foreach ($params as $param) {
+            if ($param->getClass()
+                && ($param->getClass()->isSubclassOf(Post::class) || $param->getClass()->getName() === Post::class)) {
+                $builder = $param->getClass()->getMethod('query')->invoke(null);
+                $post = $builder->find(Wordpress::id());
+
+                $this->setParameter($param->getName(), $post);
+            }
+        }
+
+        return parent::runCallable();
+    }
+}
diff --git a/src/Routing/Routing.php b/src/Routing/Routing.php
index f3b8d2a..bf085f7 100644
--- a/src/Routing/Routing.php
+++ b/src/Routing/Routing.php
@@ -80,6 +80,19 @@ class Routing
         return Route::getRoutes()->add($route);
     }
 
+    public function posts($action)
+    {
+        $action = $this->formatAction($action);
+
+        $route = (new PostsRoute($action['method'], $action))
+            ->setRouter(app('router'))
+            ->setContainer(app(Container::class));
+
+        $route = $this->applyStack($route);
+
+        return Route::getRoutes()->add($route);
+    }
+
     /**
      * Register a new archive route with the router. Optionally supply
      * the post types you'd like to supply with this route.
diff --git a/src/Routing/RoutingServiceProvider.php b/src/Routing/RoutingServiceProvider.php
index e81e990..936ca26 100644
--- a/src/Routing/RoutingServiceProvider.php
+++ b/src/Routing/RoutingServiceProvider.php
@@ -30,5 +30,6 @@ class RoutingServiceProvider extends ServiceProvider
         Router::macro('singular', [$routing, 'singular']);
         Router::macro('author', [$routing, 'author']);
         Router::macro('category', [$routing, 'category']);
+        Router::macro('posts', [$routing, 'posts']);
     }
 }
--
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