require "spec_helper"

shared_examples_for "chat service" do |service_name|
  describe "Associations" do
    it { is_expected.to belong_to :project }
    it { is_expected.to have_one :service_hook }
  end

  describe "Validations" do
    context "when service is active" do
      before do
        subject.active = true
      end

      it { is_expected.to validate_presence_of(:webhook) }
      it_behaves_like "issue tracker service URL attribute", :webhook
    end

    context "when service is inactive" do
      before do
        subject.active = false
      end

      it { is_expected.not_to validate_presence_of(:webhook) }
    end
  end

  describe '.supported_events' do
    it 'does not support deployment_events' do
      expect(described_class.supported_events).not_to include('deployment')
    end
  end

  describe "#execute" do
    let(:user) { create(:user) }
    let(:project) { create(:project, :repository) }
    let(:webhook_url) { "https://example.gitlab.com/" }

    before do
      allow(subject).to receive_messages(
        project: project,
        project_id: project.id,
        service_hook: true,
        webhook: webhook_url
      )

      WebMock.stub_request(:post, webhook_url)
    end

    shared_examples "#{service_name} service" do
      it "calls #{service_name} API" do
        subject.execute(sample_data)

        expect(WebMock).to have_requested(:post, webhook_url).with { |req| req.body =~ /\A{"#{content_key}":.+}\Z/ }.once
      end
    end

    context "with push events" do
      let(:sample_data) do
        Gitlab::DataBuilder::Push.build_sample(project, user)
      end

      it_behaves_like "#{service_name} service"

      it "specifies the webhook when it is configured" do
        expect(client).to receive(:new).with(client_arguments).and_return(double(:chat_service).as_null_object)

        subject.execute(sample_data)
      end

      context "with not default branch" do
        let(:sample_data) do
          Gitlab::DataBuilder::Push.build(project: project, user: user, ref: "not-the-default-branch")
        end

        context "when notify_only_default_branch enabled" do
          before do
            subject.notify_only_default_branch = true
          end

          it "does not call the Discord Webhooks API" do
            result = subject.execute(sample_data)

            expect(result).to be_falsy
          end
        end

        context "when notify_only_default_branch disabled" do
          before do
            subject.notify_only_default_branch = false
          end

          it_behaves_like "#{service_name} service"
        end
      end
    end

    context "with issue events" do
      let(:opts) { { title: "Awesome issue", description: "please fix" } }
      let(:sample_data) do
        service = Issues::CreateService.new(project, user, opts)
        issue = service.execute
        service.hook_data(issue, "open")
      end

      it_behaves_like "#{service_name} service"
    end

    context "with merge events" do
      let(:opts) do
        {
          title: "Awesome merge_request",
          description: "please fix",
          source_branch: "feature",
          target_branch: "master"
        }
      end

      let(:sample_data) do
        service = MergeRequests::CreateService.new(project, user, opts)
        merge_request = service.execute
        service.hook_data(merge_request, "open")
      end

      before do
        project.add_developer(user)
      end

      it_behaves_like "#{service_name} service"
    end

    context "with wiki page events" do
      let(:opts) do
        {
          title: "Awesome wiki_page",
          content: "Some text describing some thing or another",
          format: "md",
          message: "user created page: Awesome wiki_page"
        }
      end
      let(:wiki_page) { create(:wiki_page, wiki: project.wiki, attrs: opts) }
      let(:sample_data) { Gitlab::DataBuilder::WikiPage.build(wiki_page, user, "create") }

      it_behaves_like "#{service_name} service"
    end

    context "with note events" do
      let(:sample_data) { Gitlab::DataBuilder::Note.build(note, user) }

      context "with commit comment" do
        let(:note) do
          create(:note_on_commit,
                 author: user,
                 project: project,
                 commit_id: project.repository.commit.id,
                 note: "a comment on a commit")
        end

        it_behaves_like "#{service_name} service"
      end

      context "with merge request comment" do
        let(:note) do
          create(:note_on_merge_request, project: project, note: "merge request note")
        end

        it_behaves_like "#{service_name} service"
      end

      context "with issue comment" do
        let(:note) do
          create(:note_on_issue, project: project, note: "issue note")
        end

        it_behaves_like "#{service_name} service"
      end

      context "with snippet comment" do
        let(:note) do
          create(:note_on_project_snippet, project: project, note: "snippet note")
        end

        it_behaves_like "#{service_name} service"
      end
    end

    context "with pipeline events" do
      let(:pipeline) do
        create(:ci_pipeline,
               project: project, status: status,
               sha: project.commit.sha, ref: project.default_branch)
      end
      let(:sample_data) { Gitlab::DataBuilder::Pipeline.build(pipeline) }

      context "with failed pipeline" do
        let(:status) { "failed" }

        it_behaves_like "#{service_name} service"
      end

      context "with succeeded pipeline" do
        let(:status) { "success" }

        context "with default notify_only_broken_pipelines" do
          it "does not call Discord Webhooks API" do
            result = subject.execute(sample_data)

            expect(result).to be_falsy
          end
        end

        context "when notify_only_broken_pipelines is false" do
          before do
            subject.notify_only_broken_pipelines = false
          end

          it_behaves_like "#{service_name} service"
        end
      end

      context "with not default branch" do
        let(:pipeline) do
          create(:ci_pipeline, project: project, status: "failed", ref: "not-the-default-branch")
        end

        context "when notify_only_default_branch enabled" do
          before do
            subject.notify_only_default_branch = true
          end

          it "does not call the Discord Webhooks API" do
            result = subject.execute(sample_data)

            expect(result).to be_falsy
          end
        end

        context "when notify_only_default_branch disabled" do
          before do
            subject.notify_only_default_branch = false
          end

          it_behaves_like "#{service_name} service"
        end
      end
    end
  end
end