[FInishes 114505177] Match route's path to endoint

lib/algernon.rb

@@ -2,4 +2,4 @@
 require "algernon/dependencies"
 require "utility/utility"
 require "algernon/application"
-require "algernon/route/router"
+require "algernon/routes/router"

lib/algernon/routes/finder.rb

@@ -0,0 +1,30 @@
+module Algernon
+  module Routes
+    class Finder
+      def intialize(endpoints)
+        @endpoints = endpoints
+      end
+
+      def locate_route(request)
+        @request = request
+        path = request.path_info
+        method = request.request_method.downcase.to_sym
+        result = @endpoints[method].detect do |endpoint|
+          find_path_with_pattern path, endpoint
+        end
+        return Route.new(@request, result[:class_and_method]) if result
+      end
+
+      def find_path_with_pattern(path, endpoint)
+        regex, placeholders = endpoint[:pattern]
+        if path.match(regex)
+          match_data = Regexp.last_match
+          placeholders.each do |placeholder|
+            @request.update_param(placeholder, match_data[placeholder])
+          end
+          true
+        end
+      end
+    end
+  end
+end

lib/algernon/routes/route.rb

@@ -0,0 +1,19 @@
+module Algernon
+  module Routes
+    class Route
+      attr_reader :klass_name, :request, :method_name
+      def initialize(request, klass_and_method)
+        @klass_name, @method_name = klass_and_method
+        @request = request
+      end
+
+      def klass
+        klass_name.constantize
+      end
+
+      def dispatch
+        klass.new(request).send(method_name)
+      end
+    end
+  end
+end

lib/algernon/route/router.rb → lib/algernon/routes/router.rb

@@ -1,5 +1,5 @@
 module Algernon
-  module Route
+  module Routes
     class Router
       def draw(&block)
         instance_eval(&block)

spec/unit/router_spec.rb

@@ -1,7 +1,7 @@
 require "spec_helper"
 
 module Algernon
-  module Route
+  module Routes
     class Router
       attr_reader :route_info
 
@@ -13,9 +13,9 @@ def draw(&block)
   end
 end
 
-describe Algernon::Route::Router do
+describe Algernon::Routes::Router do
   def draw(&block)
-    router = Algernon::Route::Router.new
+    router = Algernon::Routes::Router.new
     router.draw(&block).route_info
   end
 
@@ -52,7 +52,7 @@ def endpoint
   end
 
   context "get '/photos/:id/edit', to: 'photos#edit'" do
-    subject do
+    def endpoint
       draw { get "/photos/:id/edit", to: "photos#edit" }
     end
 
@@ -62,11 +62,11 @@ def endpoint
                    class_and_method: ["PhotosController", :edit]
                  }
 
-    it { is_expected.to eq route_info }
+    it { expect(endpoint).to eq route_info }
   end
 
   context "get 'album/:album_id/photos/:photo_id', to: 'photos#album_photo'" do
-    subject do
+    def endpoint
       draw { get "/album/:album_id/photos/:photo_id", to: "photos#album_photo" }
     end
 
@@ -76,6 +76,6 @@ def endpoint
                    class_and_method: ["PhotosController", :album_photo]
                  }
 
-    it { is_expected.to eq route_info }
+    it { expect(endpoint).to eq route_info }
   end
 end