Backport Todos API to V3

lib/api/api.rb

@@ -19,6 +19,7 @@ module API
       mount ::API::V3::Repositories
       mount ::API::V3::SystemHooks
       mount ::API::V3::Tags
+      mount ::API::V3::Todos
       mount ::API::V3::Templates
       mount ::API::V3::Users
     end

lib/api/v3/todos.rb

+module API
+  module V3
+    class Todos < Grape::API
+      before { authenticate! }
+
+      resource :todos do
+        desc 'Mark a todo as done' do
+          success ::API::Entities::Todo
+        end
+        params do
+          requires :id, type: Integer, desc: 'The ID of the todo being marked as done'
+        end
+        delete ':id' do
+          todo = current_user.todos.find(params[:id])
+          TodoService.new.mark_todos_as_done([todo], current_user)
+
+          present todo.reload, with: ::API::Entities::Todo, current_user: current_user
+        end
+
+        desc 'Mark all todos as done'
+        delete do
+          todos = TodosFinder.new(current_user, params).execute
+          TodoService.new.mark_todos_as_done(todos, current_user)
+        end
+      end
+    end
+  end
+end

spec/requests/api/v3/todos_spec.rb

+require 'spec_helper'
+
+describe API::V3::Todos, api: true do
+  include ApiHelpers
+
+  let(:project_1) { create(:empty_project) }
+  let(:project_2) { create(:empty_project) }
+  let(:author_1) { create(:user) }
+  let(:author_2) { create(:user) }
+  let(:john_doe) { create(:user, username: 'john_doe') }
+  let!(:pending_1) { create(:todo, :mentioned, project: project_1, author: author_1, user: john_doe) }
+  let!(:pending_2) { create(:todo, project: project_2, author: author_2, user: john_doe) }
+  let!(:pending_3) { create(:todo, project: project_1, author: author_2, user: john_doe) }
+  let!(:done) { create(:todo, :done, project: project_1, author: author_1, user: john_doe) }
+
+  before do
+    project_1.team << [john_doe, :developer]
+    project_2.team << [john_doe, :developer]
+  end
+
+  describe 'DELETE /todos/:id' do
+    context 'when unauthenticated' do
+      it 'returns authentication error' do
+        delete v3_api("/todos/#{pending_1.id}")
+
+        expect(response.status).to eq(401)
+      end
+    end
+
+    context 'when authenticated' do
+      it 'marks a todo as done' do
+        delete v3_api("/todos/#{pending_1.id}", john_doe)
+
+        expect(response.status).to eq(200)
+        expect(pending_1.reload).to be_done
+      end
+
+      it 'updates todos cache' do
+        expect_any_instance_of(User).to receive(:update_todos_count_cache).and_call_original
+
+        delete v3_api("/todos/#{pending_1.id}", john_doe)
+      end
+    end
+  end
+
+  describe 'DELETE /todos' do
+    context 'when unauthenticated' do
+      it 'returns authentication error' do
+        delete v3_api('/todos')
+
+        expect(response.status).to eq(401)
+      end
+    end
+
+    context 'when authenticated' do
+      it 'marks all todos as done' do
+        delete v3_api('/todos', john_doe)
+
+        expect(response.status).to eq(200)
+        expect(response.body).to eq('3')
+        expect(pending_1.reload).to be_done
+        expect(pending_2.reload).to be_done
+        expect(pending_3.reload).to be_done
+      end
+
+      it 'updates todos cache' do
+        expect_any_instance_of(User).to receive(:update_todos_count_cache).and_call_original
+
+        delete v3_api("/todos", john_doe)
+      end
+    end
+  end
+end