From a98df65de995454fe1aa31f82759fab9e3504f7c Mon Sep 17 00:00:00 2001
From: Jordan Doyle <jordan@doyle.wf>
Date: Tue, 4 Oct 2016 20:48:57 +0100
Subject: [PATCH] Multisite routing support

---
 src/Routing/ArchiveRoute.php  |  4 ++++
 src/Routing/PageRoute.php     |  4 ++++
 src/Routing/Routing.php       | 35 ++++++++++++++++++++++++++++++++++-
 src/Routing/SingularRoute.php |  4 ++++
 src/Routing/TemplateRoute.php |  4 ++++
 src/Support/Wordpress.php     | 30 ++++++++++++++++++++++++++++++
 6 files changed, 80 insertions(+), 1 deletion(-)

diff --git a/src/Routing/ArchiveRoute.php b/src/Routing/ArchiveRoute.php
index 49113ed..dfb0d36 100644
--- a/src/Routing/ArchiveRoute.php
+++ b/src/Routing/ArchiveRoute.php
@@ -55,6 +55,10 @@ class ArchiveRoute extends Route
      */
     public function matches(Request $request, $includingMethod = true)
     {
+        if (!empty($this->getAction()['domain']) && !Wordpress::multisite($this->getAction()['domain'])) {
+            return false;
+        }
+
         return Wordpress::archive($this->postTypes);
     }
 }
diff --git a/src/Routing/PageRoute.php b/src/Routing/PageRoute.php
index 7b97b65..5641d91 100644
--- a/src/Routing/PageRoute.php
+++ b/src/Routing/PageRoute.php
@@ -39,6 +39,10 @@ class PageRoute extends Route
             return false;
         }
 
+        if (!empty($this->getAction()['domain']) && !Wordpress::multisite($this->getAction()['domain'])) {
+            return false;
+        }
+
         return $this->uri === $id;
     }
 }
diff --git a/src/Routing/Routing.php b/src/Routing/Routing.php
index 3d218e1..1ff2d70 100644
--- a/src/Routing/Routing.php
+++ b/src/Routing/Routing.php
@@ -21,6 +21,8 @@ class Routing
             ->setRouter(app('router'))
             ->setContainer(app(Container::class));
 
+        $route = $this->applyStack($route);
+
         return Route::getRoutes()->add($route);
     }
 
@@ -39,6 +41,8 @@ class Routing
             ->setRouter(app('router'))
             ->setContainer(app(Container::class));
 
+        $route = $this->applyStack($route);
+
         return Route::getRoutes()->add($route);
     }
 
@@ -67,6 +71,8 @@ class Routing
             ->setRouter(app('router'))
             ->setContainer(app(Container::class));
 
+        $route = $this->applyStack($route);
+
         return Route::getRoutes()->add($route);
     }
 
@@ -90,6 +96,8 @@ class Routing
             ->setRouter(app('router'))
             ->setContainer(app(Container::class));
 
+        $route = $this->applyStack($route);
+
         return Route::getRoutes()->add($route);
     }
 
@@ -99,7 +107,7 @@ class Routing
      * @param $action
      * @return array|string
      */
-    private function formatAction($action)
+    protected function formatAction($action)
     {
         if (!($action instanceof $action) && (is_string($action) || (isset($action['uses'])
                     && is_string($action['uses'])))) {
@@ -127,4 +135,29 @@ class Routing
 
         return $action;
     }
+
+    /**
+     * Apply group stack properties to the route and apply global "wheres" to the
+     * route.
+     *
+     * @param $route
+     * @return mixed
+     */
+    protected function applyStack($route)
+    {
+        // If we have groups that need to be merged, we will merge them now after this
+        // route has already been created and is ready to go. After we're done with
+        // the merge we will be ready to return the route back out to the caller.
+        if (Route::hasGroupStack()) {
+            $action = Route::mergeWithLastGroup($route->getAction());
+
+            $route->setAction($action);
+        }
+
+        $where = isset($route->getAction()['where']) ? $route->getAction()['where'] : [];
+
+        $route->where(array_merge(Route::getPatterns(), $where));
+
+        return $route;
+    }
 }
diff --git a/src/Routing/SingularRoute.php b/src/Routing/SingularRoute.php
index 1d0bc55..8753b29 100644
--- a/src/Routing/SingularRoute.php
+++ b/src/Routing/SingularRoute.php
@@ -60,6 +60,10 @@ class SingularRoute extends Route
             return false;
         }
 
+        if (!empty($this->getAction()['domain']) && !Wordpress::multisite($this->getAction()['domain'])) {
+            return false;
+        }
+
         return Wordpress::singular($this->types);
     }
 }
diff --git a/src/Routing/TemplateRoute.php b/src/Routing/TemplateRoute.php
index 65d46b2..93cb598 100644
--- a/src/Routing/TemplateRoute.php
+++ b/src/Routing/TemplateRoute.php
@@ -39,6 +39,10 @@ class TemplateRoute extends Route
             return false;
         }
 
+        if (!empty($this->getAction()['domain']) && !Wordpress::multisite($this->getAction()['domain'])) {
+            return false;
+        }
+
         return $this->uri === $slug;
     }
 }
diff --git a/src/Support/Wordpress.php b/src/Support/Wordpress.php
index e6a51cd..933bf60 100644
--- a/src/Support/Wordpress.php
+++ b/src/Support/Wordpress.php
@@ -66,6 +66,36 @@ class Wordpress
     }
 
     /**
+     * Check if we are on a multisite, and optionally check the multisite we are on.
+     *
+     * @param null|int|array $id id (or ids) to check against the site, or null if you want to just check
+     *                           if we are actually on a multisite
+     * @return bool
+     */
+    public static function multisite($id = null)
+    {
+        if (is_array($id)) {
+            foreach ($id as $i) {
+                if (static::multisite($i)) {
+                    return true;
+                }
+            }
+        }
+
+        return $id === null ? is_multisite() : ($id === static::getMultisite());
+    }
+
+    /**
+     * Get the current multisite id.
+     *
+     * @return int
+     */
+    public static function getMultisite()
+    {
+        return get_current_blog_id();
+    }
+
+    /**
      * Get the current logged in user.
      *
      * @return \WP_User
--
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