require 'rails_helper'

describe 'Merge request > User uses quick actions', :js do
  include QuickActionsHelpers

  let(:project) { create(:project, :public, :repository) }
  let(:user) { project.creator }
  let(:guest) { create(:user) }
  let(:merge_request) { create(:merge_request, source_project: project) }
  let!(:milestone) { create(:milestone, project: project, title: 'ASAP') }

  it_behaves_like 'issuable record that supports quick actions in its description and notes', :merge_request do
    let(:issuable) { create(:merge_request, source_project: project) }
    let(:new_url_opts) { { merge_request: { source_branch: 'feature', target_branch: 'master' } } }
  end

  describe 'merge-request-only commands' do
    let(:user) { create(:user) }
    let(:project) { create(:project, :public, :repository) }
    let(:merge_request) { create(:merge_request, source_project: project) }
    let!(:milestone) { create(:milestone, project: project, title: 'ASAP') }

    before do
      project.add_master(user)
      sign_in(user)
      visit project_merge_request_path(project, merge_request)
    end

    describe 'time tracking' do
      it_behaves_like 'issuable time tracker'
    end

    describe 'toggling the WIP prefix in the title from note' do
      context 'when the current user can toggle the WIP prefix' do
        it 'adds the WIP: prefix to the title' do
          write_note("/wip")

          expect(page).not_to have_content '/wip'
          expect(page).to have_content 'Commands applied'

          expect(merge_request.reload.work_in_progress?).to eq true
        end

        it 'removes the WIP: prefix from the title' do
          merge_request.title = merge_request.wip_title
          merge_request.save
          write_note("/wip")

          expect(page).not_to have_content '/wip'
          expect(page).to have_content 'Commands applied'

          expect(merge_request.reload.work_in_progress?).to eq false
        end
      end

      context 'when the current user cannot toggle the WIP prefix' do
        before do
          project.add_guest(guest)
          sign_out(:user)
          sign_in(guest)
          visit project_merge_request_path(project, merge_request)
        end

        it 'does not change the WIP prefix' do
          write_note("/wip")

          expect(page).not_to have_content '/wip'
          expect(page).not_to have_content 'Commands applied'

          expect(merge_request.reload.work_in_progress?).to eq false
        end
      end
    end

    describe 'merging the MR from the note' do
      context 'when the current user can merge the MR' do
        it 'merges the MR' do
          write_note("/merge")

          expect(page).to have_content 'Commands applied'

          expect(merge_request.reload).to be_merged
        end
      end

      context 'when the head diff changes in the meanwhile' do
        before do
          merge_request.source_branch = 'another_branch'
          merge_request.save
        end

        it 'does not merge the MR' do
          write_note("/merge")

          expect(page).not_to have_content 'Your commands have been executed!'

          expect(merge_request.reload).not_to be_merged
        end
      end

      context 'when the current user cannot merge the MR' do
        before do
          project.add_guest(guest)
          sign_out(:user)
          sign_in(guest)
          visit project_merge_request_path(project, merge_request)
        end

        it 'does not merge the MR' do
          write_note("/merge")

          expect(page).not_to have_content 'Your commands have been executed!'

          expect(merge_request.reload).not_to be_merged
        end
      end
    end

    describe 'adding a due date from note' do
      it 'does not recognize the command nor create a note' do
        write_note('/due 2016-08-28')

        expect(page).not_to have_content '/due 2016-08-28'
      end
    end

    describe '/target_branch command in merge request' do
      let(:another_project) { create(:project, :public, :repository) }
      let(:new_url_opts) { { merge_request: { source_branch: 'feature' } } }

      before do
        sign_out(:user)
        another_project.add_master(user)
        sign_in(user)
      end

      it 'changes target_branch in new merge_request' do
        visit project_new_merge_request_path(another_project, new_url_opts)

        fill_in "merge_request_title", with: 'My brand new feature'
        fill_in "merge_request_description", with: "le feature \n/target_branch fix\nFeature description:"
        click_button "Submit merge request"

        merge_request = another_project.merge_requests.first
        expect(merge_request.description).to eq "le feature \nFeature description:"
        expect(merge_request.target_branch).to eq 'fix'
      end

      it 'does not change target branch when merge request is edited' do
        new_merge_request = create(:merge_request, source_project: another_project)

        visit edit_project_merge_request_path(another_project, new_merge_request)
        fill_in "merge_request_description", with: "Want to update target branch\n/target_branch fix\n"
        click_button "Save changes"

        new_merge_request = another_project.merge_requests.first
        expect(new_merge_request.description).to include('/target_branch')
        expect(new_merge_request.target_branch).not_to eq('fix')
      end
    end

    describe '/target_branch command from note' do
      context 'when the current user can change target branch' do
        it 'changes target branch from a note' do
          write_note("message start \n/target_branch merge-test\n message end.")

          wait_for_requests
          expect(page).not_to have_content('/target_branch')
          expect(page).to have_content('message start')
          expect(page).to have_content('message end.')

          expect(merge_request.reload.target_branch).to eq 'merge-test'
        end

        it 'does not fail when target branch does not exists' do
          write_note('/target_branch totally_not_existing_branch')

          expect(page).not_to have_content('/target_branch')

          expect(merge_request.target_branch).to eq 'feature'
        end
      end

      context 'when current user can not change target branch' do
        before do
          project.add_guest(guest)
          sign_out(:user)
          sign_in(guest)
          visit project_merge_request_path(project, merge_request)
        end

        it 'does not change target branch' do
          write_note('/target_branch merge-test')

          expect(page).not_to have_content '/target_branch merge-test'

          expect(merge_request.target_branch).to eq 'feature'
        end
      end
    end
  end
end
