# frozen_string_literal: true

require 'spec_helper'

RSpec.describe API::ResourceStateEvents do
  let_it_be(:user) { create(:user) }
  let_it_be(:project, reload: true) { create(:project, :public, namespace: user.namespace) }

  before_all do
    project.add_developer(user)
  end

  shared_examples 'resource_state_events API' do |parent_type, eventable_type, id_name|
    describe "GET /#{parent_type}/:id/#{eventable_type}/:noteable_id/resource_state_events" do
      let!(:event) { create_event }

      it "returns an array of resource state events" do
        url = "/#{parent_type}/#{parent.id}/#{eventable_type}/#{eventable[id_name]}/resource_state_events"
        get api(url, user)

        expect(response).to have_gitlab_http_status(:ok)
        expect(response).to include_pagination_headers
        expect(json_response).to be_an Array
        expect(json_response.first['id']).to eq(event.id)
        expect(json_response.first['state']).to eq(event.state.to_s)
      end

      it "returns a 404 error when eventable id not found" do
        get api("/#{parent_type}/#{parent.id}/#{eventable_type}/#{non_existing_record_id}/resource_state_events", user)

        expect(response).to have_gitlab_http_status(:not_found)
      end

      it "returns 404 when not authorized" do
        parent.update!(visibility_level: Gitlab::VisibilityLevel::PRIVATE)
        private_user = create(:user)

        get api("/#{parent_type}/#{parent.id}/#{eventable_type}/#{eventable[id_name]}/resource_state_events", private_user)

        expect(response).to have_gitlab_http_status(:not_found)
      end
    end

    describe "GET /#{parent_type}/:id/#{eventable_type}/:noteable_id/resource_state_events/:event_id" do
      let!(:event) { create_event }

      it "returns a resource state event by id" do
        get api("/#{parent_type}/#{parent.id}/#{eventable_type}/#{eventable[id_name]}/resource_state_events/#{event.id}", user)

        expect(response).to have_gitlab_http_status(:ok)
        expect(json_response['id']).to eq(event.id)
        expect(json_response['state']).to eq(event.state.to_s)
      end

      it "returns 404 when not authorized" do
        parent.update!(visibility_level: Gitlab::VisibilityLevel::PRIVATE)
        private_user = create(:user)

        get api("/#{parent_type}/#{parent.id}/#{eventable_type}/#{eventable[id_name]}/resource_state_events/#{event.id}", private_user)

        expect(response).to have_gitlab_http_status(:not_found)
      end

      it "returns a 404 error if resource state event not found" do
        get api("/#{parent_type}/#{parent.id}/#{eventable_type}/#{eventable[id_name]}/resource_state_events/#{non_existing_record_id}", user)

        expect(response).to have_gitlab_http_status(:not_found)
      end
    end

    describe 'pagination' do
      # https://gitlab.com/gitlab-org/gitlab/-/issues/220192
      it 'returns the second page' do
        create_event
        event2 = create_event

        get api("/#{parent_type}/#{parent.id}/#{eventable_type}/#{eventable[id_name]}/resource_state_events?page=2&per_page=1", user)

        expect(response).to have_gitlab_http_status(:ok)
        expect(response).to include_pagination_headers
        expect(response.headers['X-Total']).to eq '2'
        expect(json_response.count).to eq(1)
        expect(json_response.first['id']).to eq(event2.id)
      end
    end

    def create_event(state: :opened)
      create(:resource_state_event, eventable.class.name.underscore => eventable, state: state)
    end
  end

  context 'when eventable is an Issue' do
    it_behaves_like 'resource_state_events API', 'projects', 'issues', 'iid' do
      let(:parent) { project }
      let(:eventable) { create(:issue, project: project, author: user) }
    end
  end

  context 'when eventable is a Merge Request' do
    it_behaves_like 'resource_state_events API', 'projects', 'merge_requests', 'iid' do
      let(:parent) { project }
      let(:eventable) { create(:merge_request, source_project: project, target_project: project, author: user) }
    end
  end
end