Handle loading and creating assets

For now, the show always returns a static asset and the create always succeeds but doesn't do any saving.

Note that the /internalapi/asset/.../get/ route is dictated by Scratch.

Author: zetter-rpf

app/controllers/api/scratch/assets_controller.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+module Api
+  module Scratch
+    class AssetsController < ScratchController
+      skip_before_action :authorize_user, only: [:show]
+      skip_before_action :check_scratch_feature, only: [:show]
+
+      def show
+        render :show, formats: [:svg]
+      end
+
+      def create
+        render json: { status: 'ok', 'content-name': params[:id] }, status: :created
+      end
+    end
+  end
+end

app/views/api/scratch/assets/show.svg

@@ -35,6 +35,8 @@
   namespace :api do
     namespace :scratch do
       resources :projects, only: %i[show update]
+      get '/assets/internalapi/asset/:id(.:format)/get/' => 'assets#show'
+      post '/assets/:id(.:format)' => 'assets#create'
     end
 
     resource :default_project, only: %i[show] do

config/routes.rb

@@ -0,0 +1,41 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'Creating a Scratch asset', type: :request do
+  let(:school) { create(:school) }
+  let(:teacher) { create(:teacher, school:) }
+  let(:cookie_headers) { { 'Cookie' => "scratch_auth=#{UserProfileMock::TOKEN}" } }
+
+  before do
+    Flipper.disable :cat_mode
+    Flipper.disable_actor :cat_mode, school
+  end
+
+  it 'responds 401 Unauthorized when no cookie is provided' do
+    post '/api/scratch/assets/example.svg'
+
+    expect(response).to have_http_status(:unauthorized)
+  end
+
+  it 'responds 404 Not Found when cat_mode is not enabled' do
+    authenticated_in_hydra_as(teacher)
+
+    post '/api/scratch/assets/example.svg', headers: cookie_headers
+
+    expect(response).to have_http_status(:not_found)
+  end
+
+  it 'creates an asset when cat_mode is enabled and a cookie is provided' do
+    authenticated_in_hydra_as(teacher)
+    Flipper.enable_actor :cat_mode, school
+
+    post '/api/scratch/assets/example.svg', headers: cookie_headers
+
+    expect(response).to have_http_status(:created)
+
+    data = JSON.parse(response.body, symbolize_names: true)
+    expect(data[:status]).to eq('ok')
+    expect(data[:'content-name']).to eq('example')
+  end
+end

spec/features/scratch/creating_a_scratch_asset_spec.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe 'Showing a Scratch asset', type: :request do
+  it 'returns scratch asset SVG' do
+    get '/api/scratch/assets/internalapi/asset/example.svg/get/'
+
+    expect(response).to have_http_status(:ok)
+    expect(response.body).to include('<svg')
+  end
+end