require "abstract_unit"
require "rails/engine"
require "action_dispatch/routing/inspector"

class MountedRackApp
  def self.call(env)
  end
end

class Rails::DummyController
end

module ActionDispatch
  module Routing
    class RoutesInspectorTest < ActiveSupport::TestCase
      def setup
        @set = ActionDispatch::Routing::RouteSet.new
      end

      def draw(options = nil, &block)
        @set.draw(&block)
        inspector = ActionDispatch::Routing::RoutesInspector.new(@set.routes)
        inspector.format(ActionDispatch::Routing::ConsoleFormatter.new, options).split("\n")
      end

      def test_displaying_routes_for_engines
        engine = Class.new(Rails::Engine) do
          def self.inspect
            "Blog::Engine"
          end
        end
        engine.routes.draw do
          get "/cart", to: "cart#show"
        end

        output = draw do
          get "/custom/assets", to: "custom_assets#show"
          mount engine => "/blog", :as => "blog"
        end

        assert_equal [
          "       Prefix Verb URI Pattern              Controller#Action",
          "custom_assets GET  /custom/assets(.:format) custom_assets#show",
          "         blog      /blog                    Blog::Engine",
          "",
          "Routes for Blog::Engine:",
          "  cart GET  /cart(.:format) cart#show"
        ], output
      end

      def test_displaying_routes_for_engines_without_routes
        engine = Class.new(Rails::Engine) do
          def self.inspect
            "Blog::Engine"
          end
        end
        engine.routes.draw do
        end

        output = draw do
          mount engine => "/blog", as: "blog"
        end

        assert_equal [
          "Prefix Verb URI Pattern Controller#Action",
          "  blog      /blog       Blog::Engine",
          "",
          "Routes for Blog::Engine:"
        ], output
      end

      def test_cart_inspect
        output = draw do
          get "/cart", to: "cart#show"
        end

        assert_equal [
          "Prefix Verb URI Pattern     Controller#Action",
          "  cart GET  /cart(.:format) cart#show"
        ], output
      end

      def test_articles_inspect_with_multiple_verbs
        output = draw do
          match "articles/:id", to: "articles#update", via: [:put, :patch]
        end

        assert_equal [
          "Prefix Verb      URI Pattern             Controller#Action",
          "       PUT|PATCH /articles/:id(.:format) articles#update"
        ], output
      end

      def test_inspect_shows_custom_assets
        output = draw do
          get "/custom/assets", to: "custom_assets#show"
        end

        assert_equal [
          "       Prefix Verb URI Pattern              Controller#Action",
          "custom_assets GET  /custom/assets(.:format) custom_assets#show"
        ], output
      end

      def test_inspect_routes_shows_resources_route
        output = draw do
          resources :articles
        end

        assert_equal [
          "      Prefix Verb   URI Pattern                  Controller#Action",
          "    articles GET    /articles(.:format)          articles#index",
          "             POST   /articles(.:format)          articles#create",
          " new_article GET    /articles/new(.:format)      articles#new",
          "edit_article GET    /articles/:id/edit(.:format) articles#edit",
          "     article GET    /articles/:id(.:format)      articles#show",
          "             PATCH  /articles/:id(.:format)      articles#update",
          "             PUT    /articles/:id(.:format)      articles#update",
          "             DELETE /articles/:id(.:format)      articles#destroy"
        ], output
      end

      def test_inspect_routes_shows_root_route
        output = draw do
          root to: "pages#main"
        end

        assert_equal [
          "Prefix Verb URI Pattern Controller#Action",
          "  root GET  /           pages#main"
        ], output
      end

      def test_inspect_routes_shows_dynamic_action_route
        output = draw do
          ActiveSupport::Deprecation.silence do
            get "api/:action" => "api"
          end
        end

        assert_equal [
          "Prefix Verb URI Pattern            Controller#Action",
          "       GET  /api/:action(.:format) api#:action"
        ], output
      end

      def test_inspect_routes_shows_controller_and_action_only_route
        output = draw do
          ActiveSupport::Deprecation.silence do
            get ":controller/:action"
          end
        end

        assert_equal [
          "Prefix Verb URI Pattern                    Controller#Action",
          "       GET  /:controller/:action(.:format) :controller#:action"
        ], output
      end

      def test_inspect_routes_shows_controller_and_action_route_with_constraints
        output = draw do
          ActiveSupport::Deprecation.silence do
            get ":controller(/:action(/:id))", id: /\d+/
          end
        end

        assert_equal [
          "Prefix Verb URI Pattern                            Controller#Action",
          "       GET  /:controller(/:action(/:id))(.:format) :controller#:action {:id=>/\\d+/}"
        ], output
      end

      def test_rails_routes_shows_route_with_defaults
        output = draw do
          get "photos/:id" => "photos#show", :defaults => { format: "jpg" }
        end

        assert_equal [
          "Prefix Verb URI Pattern           Controller#Action",
          '       GET  /photos/:id(.:format) photos#show {:format=>"jpg"}'
        ], output
      end

      def test_rails_routes_shows_route_with_constraints
        output = draw do
          get "photos/:id" => "photos#show", :id => /[A-Z]\d{5}/
        end

        assert_equal [
          "Prefix Verb URI Pattern           Controller#Action",
          "       GET  /photos/:id(.:format) photos#show {:id=>/[A-Z]\\d{5}/}"
        ], output
      end

      def test_rails_routes_shows_routes_with_dashes
        output = draw do
          get "about-us" => "pages#about_us"
          get "our-work/latest"

          resources :photos, only: [:show] do
            get "user-favorites", on: :collection
            get "preview-photo", on: :member
            get "summary-text"
          end
        end

        assert_equal [
          "               Prefix Verb URI Pattern                              Controller#Action",
          "             about_us GET  /about-us(.:format)                      pages#about_us",
          "      our_work_latest GET  /our-work/latest(.:format)               our_work#latest",
          "user_favorites_photos GET  /photos/user-favorites(.:format)         photos#user_favorites",
          "  preview_photo_photo GET  /photos/:id/preview-photo(.:format)      photos#preview_photo",
          "   photo_summary_text GET  /photos/:photo_id/summary-text(.:format) photos#summary_text",
          "                photo GET  /photos/:id(.:format)                    photos#show"
        ], output
      end

      def test_rails_routes_shows_route_with_rack_app
        output = draw do
          get "foo/:id" => MountedRackApp, :id => /[A-Z]\d{5}/
        end

        assert_equal [
          "Prefix Verb URI Pattern        Controller#Action",
          "       GET  /foo/:id(.:format) MountedRackApp {:id=>/[A-Z]\\d{5}/}"
        ], output
      end

      def test_rails_routes_shows_named_route_with_mounted_rack_app
        output = draw do
          mount MountedRackApp => "/foo"
        end

        assert_equal [
          "          Prefix Verb URI Pattern Controller#Action",
          "mounted_rack_app      /foo        MountedRackApp"
        ], output
      end

      def test_rails_routes_shows_overridden_named_route_with_mounted_rack_app_with_name
        output = draw do
          mount MountedRackApp => "/foo", as: "blog"
        end

        assert_equal [
          "Prefix Verb URI Pattern Controller#Action",
          "  blog      /foo        MountedRackApp"
        ], output
      end

      def test_rails_routes_shows_route_with_rack_app_nested_with_dynamic_constraints
        constraint = Class.new do
          def inspect
            "( my custom constraint )"
          end
        end

        output = draw do
          scope constraint: constraint.new do
            mount MountedRackApp => "/foo"
          end
        end

        assert_equal [
          "          Prefix Verb URI Pattern Controller#Action",
          "mounted_rack_app      /foo        MountedRackApp {:constraint=>( my custom constraint )}"
        ], output
      end

      def test_rails_routes_dont_show_app_mounted_in_assets_prefix
        output = draw do
          get "/sprockets" => MountedRackApp
        end
        assert_no_match(/MountedRackApp/, output.first)
        assert_no_match(/\/sprockets/, output.first)
      end

      def test_rails_routes_shows_route_defined_in_under_assets_prefix
        output = draw do
          scope "/sprockets" do
            get "/foo" => "foo#bar"
          end
        end
        assert_equal [
          "Prefix Verb URI Pattern              Controller#Action",
          "   foo GET  /sprockets/foo(.:format) foo#bar"
        ], output
      end

      def test_redirect
        output = draw do
          get "/foo"    => redirect("/foo/bar"), :constraints => { subdomain: "admin" }
          get "/bar"    => redirect(path: "/foo/bar", status: 307)
          get "/foobar" => redirect { "/foo/bar" }
        end

        assert_equal [
          "Prefix Verb URI Pattern       Controller#Action",
          "   foo GET  /foo(.:format)    redirect(301, /foo/bar) {:subdomain=>\"admin\"}",
          "   bar GET  /bar(.:format)    redirect(307, path: /foo/bar)",
          "foobar GET  /foobar(.:format) redirect(301)"
        ], output
      end

      def test_routes_can_be_filtered
        output = draw("posts") do
          resources :articles
          resources :posts
        end

        assert_equal ["   Prefix Verb   URI Pattern               Controller#Action",
                      "    posts GET    /posts(.:format)          posts#index",
                      "          POST   /posts(.:format)          posts#create",
                      " new_post GET    /posts/new(.:format)      posts#new",
                      "edit_post GET    /posts/:id/edit(.:format) posts#edit",
                      "     post GET    /posts/:id(.:format)      posts#show",
                      "          PATCH  /posts/:id(.:format)      posts#update",
                      "          PUT    /posts/:id(.:format)      posts#update",
                      "          DELETE /posts/:id(.:format)      posts#destroy"], output
      end

      def test_routes_can_be_filtered_with_namespaced_controllers
        output = draw("admin/posts") do
          resources :articles
          namespace :admin do
            resources :posts
          end
        end

        assert_equal ["         Prefix Verb   URI Pattern                     Controller#Action",
                      "    admin_posts GET    /admin/posts(.:format)          admin/posts#index",
                      "                POST   /admin/posts(.:format)          admin/posts#create",
                      " new_admin_post GET    /admin/posts/new(.:format)      admin/posts#new",
                      "edit_admin_post GET    /admin/posts/:id/edit(.:format) admin/posts#edit",
                      "     admin_post GET    /admin/posts/:id(.:format)      admin/posts#show",
                      "                PATCH  /admin/posts/:id(.:format)      admin/posts#update",
                      "                PUT    /admin/posts/:id(.:format)      admin/posts#update",
                      "                DELETE /admin/posts/:id(.:format)      admin/posts#destroy"], output
      end

      def test_regression_route_with_controller_regexp
        output = draw do
          ActiveSupport::Deprecation.silence do
            get ":controller(/:action)", controller: /api\/[^\/]+/, format: false
          end
        end

        assert_equal ["Prefix Verb URI Pattern            Controller#Action",
                      "       GET  /:controller(/:action) :controller#:action"], output
      end

      def test_inspect_routes_shows_resources_route_when_assets_disabled
        @set = ActionDispatch::Routing::RouteSet.new

        output = draw do
          get "/cart", to: "cart#show"
        end

        assert_equal [
          "Prefix Verb URI Pattern     Controller#Action",
          "  cart GET  /cart(.:format) cart#show"
        ], output
      end

      def test_routes_with_undefined_filter
        output = draw(controller: "Rails::MissingController") do
          get "photos/:id" => "photos#show", :id => /[A-Z]\d{5}/
        end

        assert_equal [
          "No routes were found for this controller",
          "For more information about routes, see the Rails guide: http://guides.rubyonrails.org/routing.html."
        ], output
      end

      def test_no_routes_matched_filter
        output = draw("rails/dummy") do
          get "photos/:id" => "photos#show", :id => /[A-Z]\d{5}/
        end

        assert_equal [
          "No routes were found for this controller",
          "For more information about routes, see the Rails guide: http://guides.rubyonrails.org/routing.html."
        ], output
      end

      def test_no_routes_were_defined
        output = draw("Rails::DummyController") {}

        assert_equal [
          "You don't have any routes defined!",
          "",
          "Please add some routes in config/routes.rb.",
          "",
          "For more information about routes, see the Rails guide: http://guides.rubyonrails.org/routing.html."
        ], output
      end

      def test_displaying_routes_for_internal_engines
        engine = Class.new(Rails::Engine) do
          def self.inspect
            "Blog::Engine"
          end
        end
        engine.routes.draw do
          get "/cart", to: "cart#show"
          post "/cart", to: "cart#create"
          patch "/cart", to: "cart#update"
        end

        output = draw do
          get "/custom/assets", to: "custom_assets#show"
          mount engine => "/blog", as: "blog", internal: true
        end

        assert_equal [
          "       Prefix Verb URI Pattern              Controller#Action",
          "custom_assets GET  /custom/assets(.:format) custom_assets#show",
        ], output
      end
    end
  end
end