# frozen_string_literal: true

require 'spec_helper'

RSpec.describe SearchController do
  include ExternalAuthorizationServiceHelpers

  let(:user) { create(:user) }

  before do
    sign_in(user)
  end

  shared_examples_for 'when the user cannot read cross project' do |action, params|
    before do
      allow(Ability).to receive(:allowed?).and_call_original
      allow(Ability).to receive(:allowed?)
                          .with(user, :read_cross_project, :global) { false }
    end

    it 'blocks access without a project_id' do
      get action, params: params

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

    it 'allows access with a project_id' do
      get action, params: params.merge(project_id: create(:project, :public).id)

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

  shared_examples_for 'with external authorization service enabled' do |action, params|
    let(:project) { create(:project, namespace: user.namespace) }
    let(:note) { create(:note_on_issue, project: project) }

    before do
      enable_external_authorization_service_check
    end

    it 'renders a 403 when no project is given' do
      get action, params: params

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

    it 'renders a 200 when a project was set' do
      get action, params: params.merge(project_id: project.id)

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

  describe 'GET #show' do
    it_behaves_like 'when the user cannot read cross project', :show, { search: 'hello' } do
      it 'still allows accessing the search page' do
        get :show

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

    it_behaves_like 'with external authorization service enabled', :show, { search: 'hello' }

    context 'uses the right partials depending on scope' do
      using RSpec::Parameterized::TableSyntax
      render_views

      let_it_be(:project) { create(:project, :public, :repository, :wiki_repo) }

      before do
        expect(::Gitlab::GitalyClient).to receive(:allow_ref_name_caching).and_call_original
      end

      subject { get(:show, params: { project_id: project.id, scope: scope, search: 'merge' }) }

      where(:partial, :scope) do
        '_blob'        | :blobs
        '_wiki_blob'   | :wiki_blobs
        '_commit'      | :commits
      end

      with_them do
        it do
          project_wiki = create(:project_wiki, project: project, user: user)
          create(:wiki_page, wiki: project_wiki, title: 'merge', content: 'merge')

          expect(subject).to render_template("search/results/#{partial}")
        end
      end
    end

    context 'global search' do
      using RSpec::Parameterized::TableSyntax
      render_views

      context 'when block_anonymous_global_searches is disabled' do
        before do
          stub_feature_flags(block_anonymous_global_searches: false)
        end

        it 'omits pipeline status from load' do
          project = create(:project, :public)
          expect(Gitlab::Cache::Ci::ProjectPipelineStatus).not_to receive(:load_in_batch_for_projects)

          get :show, params: { scope: 'projects', search: project.name }

          expect(assigns[:search_objects].first).to eq project
        end

        context 'check search term length' do
          let(:search_queries) do
            char_limit = SearchService::SEARCH_CHAR_LIMIT
            term_limit = SearchService::SEARCH_TERM_LIMIT
            {
              chars_under_limit: ('a' * (char_limit - 1)),
              chars_over_limit: ('a' * (char_limit + 1)),
              terms_under_limit: ('abc ' * (term_limit - 1)),
              terms_over_limit: ('abc ' * (term_limit + 1))
            }
          end

          where(:string_name, :expectation) do
            :chars_under_limit | :not_to_set_flash
            :chars_over_limit  | :set_chars_flash
            :terms_under_limit | :not_to_set_flash
            :terms_over_limit  | :set_terms_flash
          end

          with_them do
            it do
              get :show, params: { scope: 'projects', search: search_queries[string_name] }

              case expectation
              when :not_to_set_flash
                expect(controller).not_to set_flash[:alert]
              when :set_chars_flash
                expect(controller).to set_flash[:alert].to(/characters/)
              when :set_terms_flash
                expect(controller).to set_flash[:alert].to(/terms/)
              end
            end
          end
        end
      end

      context 'when block_anonymous_global_searches is enabled' do
        context 'for unauthenticated user' do
          before do
            sign_out(user)
          end

          it 'redirects to login page' do
            get :show, params: { scope: 'projects', search: '*' }

            expect(response).to redirect_to new_user_session_path
          end
        end

        context 'for authenticated user' do
          it 'succeeds' do
            get :show, params: { scope: 'projects', search: '*' }

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

    it 'finds issue comments' do
      project = create(:project, :public)
      note = create(:note_on_issue, project: project)

      get :show, params: { project_id: project.id, scope: 'notes', search: note.note }

      expect(assigns[:search_objects].first).to eq note
    end

    context 'unique users tracking' do
      before do
        allow(Gitlab::UsageDataCounters::HLLRedisCounter).to receive(:track_event)
      end

      it_behaves_like 'tracking unique hll events', :search_track_unique_users do
        subject(:request) { get :show, params: { scope: 'projects', search: 'term' } }

        let(:target_id) { 'i_search_total' }
        let(:expected_type) { instance_of(String) }
      end
    end

    context 'on restricted projects' do
      context 'when signed out' do
        before do
          sign_out(user)
        end

        it "doesn't expose comments on issues" do
          project = create(:project, :public, :issues_private)
          note = create(:note_on_issue, project: project)

          get :show, params: { project_id: project.id, scope: 'notes', search: note.note }

          expect(assigns[:search_objects].count).to eq(0)
        end
      end

      it "doesn't expose comments on merge_requests" do
        project = create(:project, :public, :merge_requests_private)
        note = create(:note_on_merge_request, project: project)

        get :show, params: { project_id: project.id, scope: 'notes', search: note.note }

        expect(assigns[:search_objects].count).to eq(0)
      end

      it "doesn't expose comments on snippets" do
        project = create(:project, :public, :snippets_private)
        note = create(:note_on_project_snippet, project: project)

        get :show, params: { project_id: project.id, scope: 'notes', search: note.note }

        expect(assigns[:search_objects].count).to eq(0)
      end
    end
  end

  describe 'GET #count' do
    it_behaves_like 'when the user cannot read cross project', :count, { search: 'hello', scope: 'projects' }
    it_behaves_like 'with external authorization service enabled', :count, { search: 'hello', scope: 'projects' }

    it 'returns the result count for the given term and scope' do
      create(:project, :public, name: 'hello world')
      create(:project, :public, name: 'foo bar')

      get :count, params: { search: 'hello', scope: 'projects' }

      expect(response).to have_gitlab_http_status(:ok)
      expect(json_response).to eq({ 'count' => '1' })
    end

    it 'raises an error if search term is missing' do
      expect do
        get :count, params: { scope: 'projects' }
      end.to raise_error(ActionController::ParameterMissing)
    end

    it 'raises an error if search scope is missing' do
      expect do
        get :count, params: { search: 'hello' }
      end.to raise_error(ActionController::ParameterMissing)
    end
  end

  describe 'GET #autocomplete' do
    it_behaves_like 'when the user cannot read cross project', :autocomplete, { term: 'hello' }
    it_behaves_like 'with external authorization service enabled', :autocomplete, { term: 'hello' }
  end

  describe '#append_info_to_payload' do
    it 'appends search metadata for logging' do
      last_payload = nil
      original_append_info_to_payload = controller.method(:append_info_to_payload)

      expect(controller).to receive(:append_info_to_payload) do |payload|
        original_append_info_to_payload.call(payload)
        last_payload = payload
      end

      get :show, params: { scope: 'issues', search: 'hello world', group_id: '123', project_id: '456', confidential: true, state: true, force_search_results: true }

      expect(last_payload[:metadata]['meta.search.group_id']).to eq('123')
      expect(last_payload[:metadata]['meta.search.project_id']).to eq('456')
      expect(last_payload[:metadata]['meta.search.search']).to eq('hello world')
      expect(last_payload[:metadata]['meta.search.scope']).to eq('issues')
      expect(last_payload[:metadata]['meta.search.force_search_results']).to eq('true')
      expect(last_payload[:metadata]['meta.search.filters.confidential']).to eq('true')
      expect(last_payload[:metadata]['meta.search.filters.state']).to eq('true')
    end
  end
end
