# frozen_string_literal: true

require 'spec_helper'

RSpec.describe WhatsNewController do
  describe 'whats_new_path' do
    context 'with whats_new_drawer feature enabled' do
      let(:fixture_dir_glob) { Dir.glob(File.join('spec', 'fixtures', 'whats_new', '*.yml')) }

      before do
        stub_feature_flags(whats_new_drawer: true)
        allow(Dir).to receive(:glob).with(Rails.root.join('data', 'whats_new', '*.yml')).and_return(fixture_dir_glob)
      end

      context 'with no page param' do
        it 'responds with paginated data and headers' do
          get whats_new_path, xhr: true

          expect(response.body).to eq([{ title: "bright and sunshinin' day", release: "01.05" }].to_json)
          expect(response.headers['X-Next-Page']).to eq(2)
        end
      end

      context 'with page param' do
        it 'responds with paginated data and headers' do
          get whats_new_path(page: 2), xhr: true

          expect(response.body).to eq([{ title: 'bright' }].to_json)
          expect(response.headers['X-Next-Page']).to eq(3)
        end

        it 'returns a 404 if page param is negative' do
          get whats_new_path(page: -1), xhr: true

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

        context 'when there are no more paginated results' do
          it 'responds with nil X-Next-Page header' do
            get whats_new_path(page: 3), xhr: true
            expect(response.body).to eq([{ title: "It's gonna be a bright" }].to_json)
            expect(response.headers['X-Next-Page']).to be nil
          end
        end
      end
    end

    context 'with whats_new_drawer feature disabled' do
      before do
        stub_feature_flags(whats_new_drawer: false)
      end

      it 'returns a 404' do
        get whats_new_path, xhr: true

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