# frozen_string_literal: true

require 'spec_helper'

RSpec.describe 'User creates a merge request', :js do
  include ProjectForksHelper

  shared_examples 'creates a merge request' do
    specify do
      visit(project_new_merge_request_path(project))

      compare_source_and_target('fix', 'feature')

      page.within('.merge-request-form') do
        expect(page.find('#merge_request_description')['placeholder']).to eq 'Describe the goal of the changes and what reviewers should be aware of.'
      end

      fill_in('Title', with: title)
      click_button('Create merge request')

      page.within('.merge-request') do
        expect(page).to have_content(title)
      end
    end
  end

  shared_examples 'renders not found' do
    specify do
      visit project_new_merge_request_path(project)

      expect(page).to have_title('Not Found')
      expect(page).to have_content('Page Not Found')
    end
  end

  context 'when user is a direct project member' do
    let_it_be(:project) { create(:project, :repository) }
    let_it_be(:user) { create(:user) }

    let(:title) { 'Some feature' }

    before do
      project.add_maintainer(user)
      sign_in(user)
    end

    it_behaves_like 'creates a merge request'

    context 'with XSS branch name' do
      before do
        project.repository.create_branch("<img/src='x'/onerror=alert('oops')>", 'master')
      end

      it 'does not execute the suspicious branch name' do
        visit(project_new_merge_request_path(project))

        compare_source_and_target("<img/src='x'/onerror=alert('oops')>", 'feature')

        expect { page.driver.browser.switch_to.alert }.to raise_error(Selenium::WebDriver::Error::NoSuchAlertError)
      end
    end

    context 'to a forked project' do
      let(:forked_project) { fork_project(project, user, namespace: user.namespace, repository: true) }

      it 'creates a merge request', :sidekiq_might_not_need_inline do
        visit(project_new_merge_request_path(forked_project))

        expect(page).to have_content('Source branch').and have_content('Target branch')
        expect(find('#merge_request_target_project_id', visible: false).value).to eq(project.id.to_s)

        click_button('Compare branches and continue')

        expect(page).to have_content('You must select source and target branch')

        first('.js-source-project').click
        first('.dropdown-source-project a', text: forked_project.full_path)

        first('.js-target-project').click
        first('.dropdown-target-project a', text: project.full_path)

        first('.js-source-branch').click

        wait_for_requests

        source_branch = 'fix'

        first('.js-source-branch-dropdown .dropdown-content a', text: source_branch).click

        click_button('Compare branches and continue')

        expect(page).to have_text _('New merge request')

        page.within('form#new_merge_request') do
          fill_in('Title', with: title)
        end

        expect(find('.js-assignee-search')['data-project-id']).to eq(project.id.to_s)
        find('.js-assignee-search').click

        page.within('.dropdown-menu-user') do
          expect(page).to have_content('Unassigned')
                      .and have_content(user.name)
                      .and have_content(project.users.first.name)
        end
        find('.js-assignee-search').click

        click_button('Create merge request')

        expect(page).to have_content(title).and have_content("requested to merge #{forked_project.full_path}:#{source_branch} into master")
      end
    end
  end

  context 'when user is an inherited member from the group' do
    let_it_be(:group) { create(:group, :public) }

    let(:user) { create(:user) }

    context 'when project is public and merge requests are private' do
      let_it_be(:project) do
        create(:project,
               :public,
               :repository,
               group: group,
               merge_requests_access_level: ProjectFeature::DISABLED)
      end

      context 'and user is a guest' do
        before do
          group.add_guest(user)
          sign_in(user)
        end

        it_behaves_like 'renders not found'
      end
    end

    context 'when project is private' do
      let_it_be(:project) { create(:project, :private, :repository, group: group) }

      context 'and user is a guest' do
        before do
          group.add_guest(user)
          sign_in(user)
        end

        it_behaves_like 'renders not found'
      end
    end
  end

  private

  def compare_source_and_target(source_branch, target_branch)
    find('.js-source-branch').click
    click_link(source_branch)

    find('.js-target-branch').click
    click_link(target_branch)

    click_button('Compare branches')
  end
end