require 'spec_helper'

describe API::Tags do
  let(:user) { create(:user) }
  let(:guest) { create(:user).tap { |u| project.add_guest(u) } }
  let(:project) { create(:project, :repository, creator: user, path: 'my.project') }
  let(:tag_name) { project.repository.find_tag('v1.1.0').name }

  let(:project_id) { project.id }
  let(:current_user) { nil }

  before do
    project.add_maintainer(user)
  end

  describe 'GET /projects/:id/repository/tags' do
    let(:route) { "/projects/#{project_id}/repository/tags" }

    context 'sorting' do
      let(:current_user) { user }

      it 'sorts by descending order by default' do
        get api(route, current_user)

        desc_order_tags = project.repository.tags.sort_by { |tag| tag.dereferenced_target.committed_date }
        desc_order_tags.reverse!.map! { |tag| tag.dereferenced_target.id }

        expect(json_response.map { |tag| tag['commit']['id'] }).to eq(desc_order_tags)
      end

      it 'sorts by ascending order if specified' do
        get api("#{route}?sort=asc", current_user)

        asc_order_tags = project.repository.tags.sort_by { |tag| tag.dereferenced_target.committed_date }
        asc_order_tags.map! { |tag| tag.dereferenced_target.id }

        expect(json_response.map { |tag| tag['commit']['id'] }).to eq(asc_order_tags)
      end

      it 'sorts by name in descending order when requested' do
        get api("#{route}?order_by=name", current_user)

        ordered_by_name = project.repository.tags.map { |tag| tag.name }.sort.reverse

        expect(json_response.map { |tag| tag['name'] }).to eq(ordered_by_name)
      end

      it 'sorts by name in ascending order when requested' do
        get api("#{route}?order_by=name&sort=asc", current_user)

        ordered_by_name = project.repository.tags.map { |tag| tag.name }.sort

        expect(json_response.map { |tag| tag['name'] }).to eq(ordered_by_name)
      end
    end

    shared_examples_for 'repository tags' do
      it 'returns the repository tags' do
        get api(route, current_user)

        expect(response).to have_gitlab_http_status(200)
        expect(response).to match_response_schema('public_api/v4/tags')
        expect(response).to include_pagination_headers
        expect(json_response.first['name']).to eq(tag_name)
      end

      context 'when repository is disabled' do
        include_context 'disabled repository'

        it_behaves_like '403 response' do
          let(:request) { get api(route, current_user) }
        end
      end
    end

    context 'when unauthenticated', 'and project is public' do
      let(:project) { create(:project, :public, :repository) }

      it_behaves_like 'repository tags'
    end

    context 'when unauthenticated', 'and project is private' do
      it_behaves_like '404 response' do
        let(:request) { get api(route) }
        let(:message) { '404 Project Not Found' }
      end
    end

    context 'when authenticated', 'as a maintainer' do
      let(:current_user) { user }

      it_behaves_like 'repository tags'

      context 'requesting with the escaped project full path' do
        let(:project_id) { CGI.escape(project.full_path) }

        it_behaves_like 'repository tags'
      end
    end

    context 'when authenticated', 'as a guest' do
      it_behaves_like '403 response' do
        let(:request) { get api(route, guest) }
      end
    end

    context 'with releases' do
      let(:description) { 'Awesome release!' }

      before do
        release = project.releases.find_or_initialize_by(tag: tag_name)
        release.update(description: description)
      end

      it 'returns an array of project tags with release info' do
        get api(route, user)

        expect(response).to have_gitlab_http_status(200)
        expect(response).to match_response_schema('public_api/v4/tags')
        expect(response).to include_pagination_headers
        expect(json_response.first['name']).to eq(tag_name)
        expect(json_response.first['message']).to eq('Version 1.1.0')
        expect(json_response.first['release']['description']).to eq(description)
      end
    end
  end

  describe 'GET /projects/:id/repository/tags/:tag_name' do
    let(:route) { "/projects/#{project_id}/repository/tags/#{tag_name}" }

    shared_examples_for 'repository tag' do
      it 'returns the repository branch' do
        get api(route, current_user)

        expect(response).to have_gitlab_http_status(200)
        expect(response).to match_response_schema('public_api/v4/tag')
        expect(json_response['name']).to eq(tag_name)
      end

      context 'when tag does not exist' do
        let(:tag_name) { 'unknown' }

        it_behaves_like '404 response' do
          let(:request) { get api(route, current_user) }
          let(:message) { '404 Tag Not Found' }
        end
      end

      context 'when repository is disabled' do
        include_context 'disabled repository'

        it_behaves_like '403 response' do
          let(:request) { get api(route, current_user) }
        end
      end
    end

    context 'when unauthenticated', 'and project is public' do
      let(:project) { create(:project, :public, :repository) }

      it_behaves_like 'repository tag'
    end

    context 'when unauthenticated', 'and project is private' do
      it_behaves_like '404 response' do
        let(:request) { get api(route) }
        let(:message) { '404 Project Not Found' }
      end
    end

    context 'when authenticated', 'as a maintainer' do
      let(:current_user) { user }

      it_behaves_like 'repository tag'

      context 'requesting with the escaped project full path' do
        let(:project_id) { CGI.escape(project.full_path) }

        it_behaves_like 'repository tag'
      end
    end

    context 'when authenticated', 'as a guest' do
      it_behaves_like '403 response' do
        let(:request) { get api(route, guest) }
      end
    end
  end

  describe 'POST /projects/:id/repository/tags' do
    let(:tag_name) { 'new_tag' }
    let(:route) { "/projects/#{project_id}/repository/tags" }

    shared_examples_for 'repository new tag' do
      it 'creates a new tag' do
        post api(route, current_user), tag_name: tag_name, ref: 'master'

        expect(response).to have_gitlab_http_status(201)
        expect(response).to match_response_schema('public_api/v4/tag')
        expect(json_response['name']).to eq(tag_name)
      end

      context 'when repository is disabled' do
        include_context 'disabled repository'

        it_behaves_like '403 response' do
          let(:request) { post api(route, current_user) }
        end
      end
    end

    context 'when unauthenticated', 'and project is private' do
      it_behaves_like '404 response' do
        let(:request) { post api(route) }
        let(:message) { '404 Project Not Found' }
      end
    end

    context 'when authenticated', 'as a guest' do
      it_behaves_like '403 response' do
        let(:request) { post api(route, guest) }
      end
    end

    context 'when authenticated', 'as a maintainer' do
      let(:current_user) { user }

      context "when a protected branch doesn't already exist" do
        it_behaves_like 'repository new tag'

        context 'when tag contains a dot' do
          let(:tag_name) { 'v7.0.1' }

          it_behaves_like 'repository new tag'
        end

        context 'requesting with the escaped project full path' do
          let(:project_id) { CGI.escape(project.full_path) }

          it_behaves_like 'repository new tag'

          context 'when tag contains a dot' do
            let(:tag_name) { 'v7.0.1' }

            it_behaves_like 'repository new tag'
          end
        end
      end

      it 'returns 400 if tag name is invalid' do
        post api(route, current_user), tag_name: 'new design', ref: 'master'

        expect(response).to have_gitlab_http_status(400)
        expect(json_response['message']).to eq('Tag name invalid')
      end

      it 'returns 400 if tag already exists' do
        post api(route, current_user), tag_name: 'new_design1', ref: 'master'

        expect(response).to have_gitlab_http_status(201)
        expect(response).to match_response_schema('public_api/v4/tag')

        post api(route, current_user), tag_name: 'new_design1', ref: 'master'

        expect(response).to have_gitlab_http_status(400)
        expect(json_response['message']).to eq('Tag new_design1 already exists')
      end

      it 'returns 400 if ref name is invalid' do
        post api(route, current_user), tag_name: 'new_design3', ref: 'foo'

        expect(response).to have_gitlab_http_status(400)
        expect(json_response['message']).to eq('Target foo is invalid')
      end

      context 'lightweight tags with release notes' do
        it 'creates a new tag' do
          post api(route, current_user), tag_name: tag_name, ref: 'master', release_description: 'Wow'

          expect(response).to have_gitlab_http_status(201)
          expect(response).to match_response_schema('public_api/v4/tag')
          expect(json_response['name']).to eq(tag_name)
          expect(json_response['release']['description']).to eq('Wow')
        end
      end

      context 'annotated tag' do
        it 'creates a new annotated tag' do
          # Identity must be set in .gitconfig to create annotated tag.
          repo_path = Gitlab::GitalyClient::StorageSettings.allow_disk_access do
            project.repository.path_to_repo
          end

          system(*%W(#{Gitlab.config.git.bin_path} --git-dir=#{repo_path} config user.name #{user.name}))
          system(*%W(#{Gitlab.config.git.bin_path} --git-dir=#{repo_path} config user.email #{user.email}))

          post api(route, current_user), tag_name: 'v7.1.0', ref: 'master', message: 'Release 7.1.0'

          expect(response).to have_gitlab_http_status(201)
          expect(response).to match_response_schema('public_api/v4/tag')
          expect(json_response['name']).to eq('v7.1.0')
          expect(json_response['message']).to eq('Release 7.1.0')
        end
      end
    end
  end

  describe 'DELETE /projects/:id/repository/tags/:tag_name' do
    let(:route) { "/projects/#{project_id}/repository/tags/#{tag_name}" }

    before do
      allow_any_instance_of(Repository).to receive(:rm_tag).and_return(true)
    end

    shared_examples_for 'repository delete tag' do
      it 'deletes a tag' do
        delete api(route, current_user)

        expect(response).to have_gitlab_http_status(204)
      end

      it_behaves_like '412 response' do
        let(:request) { api(route, current_user) }
      end

      context 'when tag does not exist' do
        let(:tag_name) { 'unknown' }

        it_behaves_like '404 response' do
          let(:request) { delete api(route, current_user) }
          let(:message) { '404 Tag Not Found' }
        end
      end

      context 'when repository is disabled' do
        include_context 'disabled repository'

        it_behaves_like '403 response' do
          let(:request) { delete api(route, current_user) }
        end
      end
    end

    context 'when authenticated', 'as a maintainer' do
      let(:current_user) { user }

      it_behaves_like 'repository delete tag'

      context 'requesting with the escaped project full path' do
        let(:project_id) { CGI.escape(project.full_path) }

        it_behaves_like 'repository delete tag'
      end
    end
  end

  describe 'POST /projects/:id/repository/tags/:tag_name/release' do
    let(:route) { "/projects/#{project_id}/repository/tags/#{tag_name}/release" }
    let(:description) { 'Awesome release!' }

    shared_examples_for 'repository new release' do
      it 'creates description for existing git tag' do
        post api(route, user), description: description

        expect(response).to have_gitlab_http_status(201)
        expect(response).to match_response_schema('public_api/v4/release')
        expect(json_response['tag_name']).to eq(tag_name)
        expect(json_response['description']).to eq(description)
      end

      context 'when tag does not exist' do
        let(:tag_name) { 'unknown' }

        it_behaves_like '404 response' do
          let(:request) { post api(route, current_user), description: description }
          let(:message) { 'Tag does not exist' }
        end
      end

      context 'when repository is disabled' do
        include_context 'disabled repository'

        it_behaves_like '403 response' do
          let(:request) { post api(route, current_user), description: description }
        end
      end
    end

    context 'when authenticated', 'as a maintainer' do
      let(:current_user) { user }

      it_behaves_like 'repository new release'

      context 'requesting with the escaped project full path' do
        let(:project_id) { CGI.escape(project.full_path) }

        it_behaves_like 'repository new release'
      end

      context 'on tag with existing release' do
        before do
          release = project.releases.find_or_initialize_by(tag: tag_name)
          release.update(description: description)
        end

        it 'returns 409 if there is already a release' do
          post api(route, user), description: description

          expect(response).to have_gitlab_http_status(409)
          expect(json_response['message']).to eq('Release already exists')
        end
      end
    end
  end

  describe 'PUT id/repository/tags/:tag_name/release' do
    let(:route) { "/projects/#{project_id}/repository/tags/#{tag_name}/release" }
    let(:description) { 'Awesome release!' }
    let(:new_description) { 'The best release!' }

    shared_examples_for 'repository update release' do
      context 'on tag with existing release' do
        before do
          release = project.releases.find_or_initialize_by(tag: tag_name)
          release.update(description: description)
        end

        it 'updates the release description' do
          put api(route, current_user), description: new_description

          expect(response).to have_gitlab_http_status(200)
          expect(json_response['tag_name']).to eq(tag_name)
          expect(json_response['description']).to eq(new_description)
        end
      end

      context 'when tag does not exist' do
        let(:tag_name) { 'unknown' }

        it_behaves_like '404 response' do
          let(:request) { put api(route, current_user), description: new_description }
          let(:message) { 'Tag does not exist' }
        end
      end

      context 'when repository is disabled' do
        include_context 'disabled repository'

        it_behaves_like '403 response' do
          let(:request) { put api(route, current_user), description: new_description }
        end
      end
    end

    context 'when authenticated', 'as a maintainer' do
      let(:current_user) { user }

      it_behaves_like 'repository update release'

      context 'requesting with the escaped project full path' do
        let(:project_id) { CGI.escape(project.full_path) }

        it_behaves_like 'repository update release'
      end

      context 'when release does not exist' do
        it_behaves_like '404 response' do
          let(:request) { put api(route, current_user), description: new_description }
          let(:message) { 'Release does not exist' }
        end
      end
    end
  end
end
