require 'spec_helper'

describe Groups::CreateService, '#execute' do
  let!(:user) { create(:user) }
  let!(:group_params) { { path: "group_path", visibility_level: Gitlab::VisibilityLevel::PUBLIC } }

  subject { service.execute }

  describe 'visibility level restrictions' do
    let!(:service) { described_class.new(user, group_params) }

    context "create groups without restricted visibility level" do
      it { is_expected.to be_persisted }
    end

    context "cannot create group with restricted visibility level" do
      before do
        allow_any_instance_of(ApplicationSetting).to receive(:restricted_visibility_levels).and_return([Gitlab::VisibilityLevel::PUBLIC])
      end

      it { is_expected.not_to be_persisted }
    end
  end

  describe 'creating a top level group' do
    let(:service) { described_class.new(user, group_params) }

    context 'when user can create a group' do
      before do
        user.update_attribute(:can_create_group, true)
      end

      it { is_expected.to be_persisted }
    end

    context 'when user can not create a group' do
      before do
        user.update_attribute(:can_create_group, false)
      end

      it { is_expected.not_to be_persisted }
    end
  end

  describe 'creating subgroup', :nested_groups do
    let!(:group) { create(:group) }
    let!(:service) { described_class.new(user, group_params.merge(parent_id: group.id)) }

    context 'as group owner' do
      before do
        group.add_owner(user)
      end

      it { is_expected.to be_persisted }

      context 'when nested groups feature is disabled' do
        it 'does not save group and returns an error' do
          allow(Group).to receive(:supports_nested_groups?).and_return(false)

          is_expected.not_to be_persisted
          expect(subject.errors[:parent_id]).to include('You don’t have permission to create a subgroup in this group.')
          expect(subject.parent_id).to be_nil
        end
      end
    end

    context 'when nested groups feature is enabled' do
      before do
        allow(Group).to receive(:supports_nested_groups?).and_return(true)
      end

      context 'as guest' do
        it 'does not save group and returns an error' do
          is_expected.not_to be_persisted

          expect(subject.errors[:parent_id].first).to eq('You don’t have permission to create a subgroup in this group.')
          expect(subject.parent_id).to be_nil
        end
      end

      context 'as owner' do
        before do
          group.add_owner(user)
        end

        it { is_expected.to be_persisted }
      end
    end
  end

  describe 'creating a mattermost team' do
    let!(:params) { group_params.merge(create_chat_team: "true") }
    let!(:service) { described_class.new(user, params) }

    before do
      stub_mattermost_setting(enabled: true)
    end

    it 'create the chat team with the group' do
      allow_any_instance_of(Mattermost::Team).to receive(:create)
        .and_return({ 'name' => 'tanuki', 'id' => 'lskdjfwlekfjsdifjj' })

      expect { subject }.to change { ChatTeam.count }.from(0).to(1)
    end
  end
end