require 'spec_helper'

describe Import::BitbucketController do
  include ImportSpecHelper

  let(:user) { create(:user) }
  let(:token) { "asdasd12345" }
  let(:secret) { "sekrettt" }
  let(:refresh_token) { SecureRandom.hex(15) }
  let(:access_params) { { token: token, expires_at: nil, expires_in: nil, refresh_token: nil } }
  let(:code) { SecureRandom.hex(8) }

  def assign_session_tokens
    session[:bitbucket_token] = token
  end

  before do
    sign_in(user)
    allow(controller).to receive(:bitbucket_import_enabled?).and_return(true)
  end

  describe "GET callback" do
    before do
      session[:oauth_request_token] = {}
    end

    it "updates access token" do
      expires_at = Time.now + 1.day
      expires_in = 1.day
      access_token = double(token: token,
                            secret: secret,
                            expires_at: expires_at,
                            expires_in: expires_in,
                            refresh_token: refresh_token)
      allow_any_instance_of(OAuth2::Client)
        .to receive(:get_token)
        .with(hash_including(
                'grant_type' => 'authorization_code',
                'code' => code,
                redirect_uri: users_import_bitbucket_callback_url),
              {})
        .and_return(access_token)
      stub_omniauth_provider('bitbucket')

      get :callback, params: { code: code }

      expect(session[:bitbucket_token]).to eq(token)
      expect(session[:bitbucket_refresh_token]).to eq(refresh_token)
      expect(session[:bitbucket_expires_at]).to eq(expires_at)
      expect(session[:bitbucket_expires_in]).to eq(expires_in)
      expect(controller).to redirect_to(status_import_bitbucket_url)
    end
  end

  describe "GET status" do
    before do
      @repo = double(slug: 'vim', owner: 'asd', full_name: 'asd/vim', "valid?" => true)
      assign_session_tokens
    end

    it "assigns variables" do
      @project = create(:project, import_type: 'bitbucket', creator_id: user.id)
      allow_any_instance_of(Bitbucket::Client).to receive(:repos).and_return([@repo])

      get :status

      expect(assigns(:already_added_projects)).to eq([@project])
      expect(assigns(:repos)).to eq([@repo])
      expect(assigns(:incompatible_repos)).to eq([])
    end

    it "does not show already added project" do
      @project = create(:project, import_type: 'bitbucket', creator_id: user.id, import_source: 'asd/vim')
      allow_any_instance_of(Bitbucket::Client).to receive(:repos).and_return([@repo])

      get :status

      expect(assigns(:already_added_projects)).to eq([@project])
      expect(assigns(:repos)).to eq([])
    end
  end

  describe "POST create" do
    let(:bitbucket_username) { user.username }

    let(:bitbucket_user) do
      double(username: bitbucket_username)
    end

    let(:bitbucket_repo) do
      double(slug: "vim", owner: bitbucket_username, name: 'vim')
    end

    let(:project) { create(:project) }

    before do
      allow_any_instance_of(Bitbucket::Client).to receive(:repo).and_return(bitbucket_repo)
      allow_any_instance_of(Bitbucket::Client).to receive(:user).and_return(bitbucket_user)
      assign_session_tokens
    end

    it 'returns 200 response when the project is imported successfully' do
      allow(Gitlab::BitbucketImport::ProjectCreator)
        .to receive(:new).with(bitbucket_repo, bitbucket_repo.name, user.namespace, user, access_params)
        .and_return(double(execute: project))

      post :create, format: :json

      expect(response).to have_gitlab_http_status(200)
    end

    it 'returns 422 response when the project could not be imported' do
      allow(Gitlab::BitbucketImport::ProjectCreator)
        .to receive(:new).with(bitbucket_repo, bitbucket_repo.name, user.namespace, user, access_params)
        .and_return(double(execute: build(:project)))

      post :create, format: :json

      expect(response).to have_gitlab_http_status(422)
    end

    context "when the repository owner is the Bitbucket user" do
      context "when the Bitbucket user and GitLab user's usernames match" do
        it "takes the current user's namespace" do
          expect(Gitlab::BitbucketImport::ProjectCreator)
            .to receive(:new).with(bitbucket_repo, bitbucket_repo.name, user.namespace, user, access_params)
            .and_return(double(execute: project))

          post :create, format: :json
        end
      end

      context "when the Bitbucket user and GitLab user's usernames don't match" do
        let(:bitbucket_username) { "someone_else" }

        it "takes the current user's namespace" do
          expect(Gitlab::BitbucketImport::ProjectCreator)
            .to receive(:new).with(bitbucket_repo, bitbucket_repo.name, user.namespace, user, access_params)
            .and_return(double(execute: project))

          post :create, format: :json
        end
      end

      context 'when the Bitbucket user is unauthorized' do
        render_views

        it 'returns unauthorized' do
          allow(controller).to receive(:current_user).and_return(user)
          allow(user).to receive(:can?).and_return(false)

          post :create, format: :json
        end
      end
    end

    context "when the repository owner is not the Bitbucket user" do
      let(:other_username) { "someone_else" }

      before do
        allow(bitbucket_repo).to receive(:owner).and_return(other_username)
      end

      context "when a namespace with the Bitbucket user's username already exists" do
        let!(:existing_namespace) { create(:group, name: other_username) }

        context "when the namespace is owned by the GitLab user" do
          before do
            existing_namespace.add_owner(user)
          end

          it "takes the existing namespace" do
            expect(Gitlab::BitbucketImport::ProjectCreator)
              .to receive(:new).with(bitbucket_repo, bitbucket_repo.name, existing_namespace, user, access_params)
              .and_return(double(execute: project))

            post :create, format: :json
          end
        end

        context "when the namespace is not owned by the GitLab user" do
          it "doesn't create a project" do
            expect(Gitlab::BitbucketImport::ProjectCreator)
              .not_to receive(:new)

            post :create, format: :json
          end
        end
      end

      context "when a namespace with the Bitbucket user's username doesn't exist" do
        context "when current user can create namespaces" do
          it "creates the namespace" do
            expect(Gitlab::BitbucketImport::ProjectCreator)
              .to receive(:new).and_return(double(execute: project))

            expect { post :create, format: :json }.to change(Namespace, :count).by(1)
          end

          it "takes the new namespace" do
            expect(Gitlab::BitbucketImport::ProjectCreator)
              .to receive(:new).with(bitbucket_repo, bitbucket_repo.name, an_instance_of(Group), user, access_params)
              .and_return(double(execute: project))

            post :create, format: :json
          end
        end

        context "when current user can't create namespaces" do
          before do
            user.update_attribute(:can_create_group, false)
          end

          it "doesn't create the namespace" do
            expect(Gitlab::BitbucketImport::ProjectCreator)
              .to receive(:new).and_return(double(execute: project))

            expect { post :create, format: :json }.not_to change(Namespace, :count)
          end

          it "takes the current user's namespace" do
            expect(Gitlab::BitbucketImport::ProjectCreator)
              .to receive(:new).with(bitbucket_repo, bitbucket_repo.name, user.namespace, user, access_params)
              .and_return(double(execute: project))

            post :create, format: :json
          end
        end
      end
    end

    context 'user has chosen an existing nested namespace and name for the project', :postgresql do
      let(:parent_namespace) { create(:group, name: 'foo') }
      let(:nested_namespace) { create(:group, name: 'bar', parent: parent_namespace) }
      let(:test_name) { 'test_name' }

      before do
        parent_namespace.add_owner(user)
        nested_namespace.add_owner(user)
      end

      it 'takes the selected namespace and name' do
        expect(Gitlab::BitbucketImport::ProjectCreator)
          .to receive(:new).with(bitbucket_repo, test_name, nested_namespace, user, access_params)
            .and_return(double(execute: project))

        post :create, params: { target_namespace: nested_namespace.full_path, new_name: test_name }, format: :json
      end
    end

    context 'user has chosen a non-existent nested namespaces and name for the project', :postgresql do
      let(:test_name) { 'test_name' }

      it 'takes the selected namespace and name' do
        expect(Gitlab::BitbucketImport::ProjectCreator)
          .to receive(:new).with(bitbucket_repo, test_name, kind_of(Namespace), user, access_params)
            .and_return(double(execute: project))

        post :create, params: { target_namespace: 'foo/bar', new_name: test_name }, format: :json
      end

      it 'creates the namespaces' do
        allow(Gitlab::BitbucketImport::ProjectCreator)
          .to receive(:new).with(bitbucket_repo, test_name, kind_of(Namespace), user, access_params)
            .and_return(double(execute: project))

        expect { post :create, params: { target_namespace: 'foo/bar', new_name: test_name }, format: :json }
          .to change { Namespace.count }.by(2)
      end

      it 'new namespace has the right parent' do
        allow(Gitlab::BitbucketImport::ProjectCreator)
          .to receive(:new).with(bitbucket_repo, test_name, kind_of(Namespace), user, access_params)
            .and_return(double(execute: project))

        post :create, params: { target_namespace: 'foo/bar', new_name: test_name }, format: :json

        expect(Namespace.find_by_path_or_name('bar').parent.path).to eq('foo')
      end
    end

    context 'user has chosen existent and non-existent nested namespaces and name for the project', :postgresql do
      let(:test_name) { 'test_name' }
      let!(:parent_namespace) { create(:group, name: 'foo') }

      before do
        parent_namespace.add_owner(user)
      end

      it 'takes the selected namespace and name' do
        expect(Gitlab::BitbucketImport::ProjectCreator)
          .to receive(:new).with(bitbucket_repo, test_name, kind_of(Namespace), user, access_params)
            .and_return(double(execute: project))

        post :create, params: { target_namespace: 'foo/foobar/bar', new_name: test_name }, format: :json
      end

      it 'creates the namespaces' do
        allow(Gitlab::BitbucketImport::ProjectCreator)
          .to receive(:new).with(bitbucket_repo, test_name, kind_of(Namespace), user, access_params)
            .and_return(double(execute: project))

        expect { post :create, params: { target_namespace: 'foo/foobar/bar', new_name: test_name }, format: :json }
          .to change { Namespace.count }.by(2)
      end
    end

    context 'when user can not create projects in the chosen namespace' do
      it 'returns 422 response' do
        other_namespace = create(:group, name: 'other_namespace')

        post :create, params: { target_namespace: other_namespace.name }, format: :json

        expect(response).to have_gitlab_http_status(422)
      end
    end
  end
end