require "rails_helper"

RSpec.describe "Search", type: :request, proper_status: true do
  let(:authorized_user) { create(:user) }

  describe "GET /search/tags" do
    before do
      sign_in authorized_user
    end

    context "when using Elasticsearch" do
      let(:mock_documents) do
        [{ "name" => "tag1" }, { "name" => "tag2" }, { "name" => "tag3" }]
      end

      it "returns json" do
        allow(Search::Tag).to receive(:search_documents).and_return(mock_documents)

        get search_tags_path

        expect(response.parsed_body).to eq("result" => mock_documents)
      end

      it "returns an empty array when a Bad Request error is raised" do
        allow(Search::Client).to receive(:search).and_raise(Search::Errors::Transport::BadRequest)

        get search_tags_path

        expect(response.parsed_body).to eq("result" => [])
      end
    end

    context "when using PostgreSQL" do
      before do
        allow(FeatureFlag).to receive(:enabled?).with(:search_2_tags).and_return(true)
      end

      # NOTE: [@rhymes] ES returns all tags if no parameter is given **but** this endpoint is only used by
      # the `Tags` Preact component so there's no need for us to return all tags. After all it's a search endpoint,
      # not an index page
      it "returns nothing if there is no name parameter" do
        get search_tags_path
        expect(response.parsed_body["result"]).to be_empty
      end

      it "finds a tag by a partial name" do
        tag = create(:tag, name: "elixir")

        get search_tags_path(name: "eli")

        expect(response.parsed_body["result"].first).to include("name" => tag.name)
      end
    end
  end

  describe "GET /search/chat_channels" do
    let(:authorized_user) { create(:user) }
    let(:mock_documents) do
      [{ "channel_name" => "channel1" }]
    end

    it "returns json" do
      sign_in authorized_user
      allow(Search::Postgres::ChatChannelMembership).to receive(:search_documents).and_return(
        mock_documents,
      )
      get "/search/chat_channels"
      expect(response.parsed_body).to eq("result" => mock_documents)
    end
  end

  describe "GET /search/listings" do
    context "when using Elasticsearch" do
      let(:mock_documents) do
        [{ "title" => "listing1" }]
      end

      it "returns json" do
        allow(Search::Listing).to receive(:search_documents).and_return(
          mock_documents,
        )
        get "/search/listings"
        expect(response.parsed_body).to eq("result" => mock_documents)
      end
    end

    context "when using PostgreSQL" do
      before do
        allow(FeatureFlag).to receive(:enabled?).with(:search_2_listings).and_return(true)
      end

      it "returns the correct keys" do
        create(:listing)
        get search_listings_path
        expect(response.parsed_body["result"]).to be_present
      end

      it "supports the search params" do
        listing = create(:listing)

        get search_listings_path(
          category: listing.category,
          page: 0,
          per_page: 1,
          term: listing.title.downcase,
        )

        expect(response.parsed_body["result"].first).to include("title" => listing.title)
      end
    end
  end

  describe "GET /search/users" do
    let(:mock_documents) { [{ "username" => "firstlast" }] }

    it "returns json" do
      allow(Search::User).to receive(:search_documents).and_return(
        mock_documents,
      )
      get "/search/users"
      expect(response.parsed_body).to eq("result" => mock_documents)
    end
  end

  describe "GET /search/usernames" do
    before do
      sign_in authorized_user
    end

    context "when using Elasticsearch" do
      let(:result) do
        {
          "username" => "molly",
          "name" => "Molly",
          "profile_image_90" => "something"
        }
      end

      it "returns json" do
        allow(Search::User).to receive(:search_usernames).and_return(
          result,
        )
        get "/search/usernames"
        expect(response.parsed_body).to eq("result" => result)
      end
    end

    context "when using PostgreSQL" do
      before do
        allow(FeatureFlag).to receive(:enabled?).with(:search_2_usernames).and_return(true)
      end

      it "returns nothing if there is no username parameter" do
        get search_usernames_path
        expect(response.parsed_body["result"]).to be_empty
      end

      it "finds a username by a partial name" do
        user = create(:user, username: "Sloan")

        get search_usernames_path(username: "slo")

        expect(response.parsed_body["result"].first).to include("username" => user.username)
      end
    end
  end

  describe "GET /search/feed_content" do
    let(:mock_documents) { [{ "title" => "article1" }] }

    it "returns json" do
      allow(Search::FeedContent).to receive(:search_documents).and_return(
        mock_documents,
      )

      get "/search/feed_content"
      expect(response.parsed_body["result"]).to eq(mock_documents)
    end

    it "queries only the user index if class_name=User" do
      allow(Search::FeedContent).to receive(:search_documents)
      allow(Search::User).to receive(:search_documents).and_return(
        mock_documents,
      )

      get "/search/feed_content?class_name=User"
      expect(Search::User).to have_received(:search_documents)
      expect(Search::FeedContent).not_to have_received(:search_documents)
    end

    it "queries for Articles, Podcast Episodes and Users if no class_name filter is present" do
      allow(Search::FeedContent).to receive(:search_documents).and_return(
        mock_documents,
      )
      allow(Search::User).to receive(:search_documents).and_return(
        mock_documents,
      )

      get "/search/feed_content"
      expect(Search::User).to have_received(:search_documents)
      expect(Search::FeedContent).to have_received(:search_documents)
    end

    it "queries for only Articles and Podcast Episodes if class_name!=User" do
      allow(Search::FeedContent).to receive(:search_documents).and_return(
        mock_documents,
      )
      allow(Search::User).to receive(:search_documents)

      get "/search/feed_content?class_name=Article"
      expect(Search::User).not_to have_received(:search_documents)
      expect(Search::FeedContent).to have_received(:search_documents)
    end

    it "queries for approved" do
      allow(Search::FeedContent).to receive(:search_documents).and_return(
        mock_documents,
      )

      get "/search/feed_content?class_name=Article&approved=true"
      expect(Search::FeedContent).to have_received(:search_documents).with(
        params: { "approved" => "true", "class_name" => "Article" },
      )
    end
  end

  describe "GET /search/reactions" do
    before do
      sign_in authorized_user
    end

    context "when using Elasticsearch" do
      let(:mock_response) do
        { "reactions" => [{ id: 123 }], "total" => 100 }
      end

      before do
        allow(Search::ReadingList).to receive(:search_documents).and_return(mock_response)
      end

      it "returns json with reactions and total" do
        get search_reactions_path

        expect(response.parsed_body).to eq("result" => [{ "id" => 123 }], "total" => 100)
      end

      it "accepts array of tag names" do
        get search_reactions_path(tag_names: [1, 2])

        expect(Search::ReadingList).to(
          have_received(:search_documents)
            .with(params: { "tag_names" => %w[1 2] }, user: authorized_user),
        )
      end
    end

    context "when using PostgreSQL" do
      let(:article) { create(:article) }

      before do
        allow(FeatureFlag).to receive(:enabled?).with(:search_2_reading_list).and_return(true)
        create(:reaction, category: :readinglist, reactable: article, user: authorized_user)
      end

      it "returns the correct keys", :aggregate_failures do
        get search_reactions_path

        expect(response.parsed_body["result"]).to be_present
        expect(response.parsed_body["total"]).to eq(1)
      end

      it "supports the search params" do
        article.update_columns(title: "Title", cached_tag_list: "ruby, python")

        get search_reactions_path(page: 0, per_page: 1, status: %w[valid], tags: %w[ruby], term: "title")

        expect(response.parsed_body["result"].first["reactable"]).to include("title" => "Title")
      end
    end
  end
end