require "rails_helper"

RSpec.describe SchemesController, type: :request do
  let(:organisation) { user.organisation }
  let(:headers) { { "Accept" => "text/html" } }
  let(:page) { Capybara::Node::Simple.new(response.body) }
  let(:user) { FactoryBot.create(:user, :support) }
  let!(:schemes) { FactoryBot.create_list(:scheme, 5) }

  describe "#index" do
    context "when not signed in" do
      it "redirects to the sign in page" do
        get "/supported-housing"
        expect(response).to redirect_to("/account/sign-in")
      end
    end

    context "when signed in as a data provider user" do
      let(:user) { FactoryBot.create(:user) }

      before do
        sign_in user
        get "/supported-housing"
      end

      it "returns 401 unauthorized" do
        request
        expect(response).to have_http_status(:unauthorized)
      end
    end

    context "when signed in as a data coordinator user" do
      let(:user) { FactoryBot.create(:user, :data_coordinator) }

      before do
        sign_in user
        get "/supported-housing"
      end

      it "redirects to the organisation schemes path" do
        follow_redirect!
        expect(path).to match("/organisations/#{user.organisation.id}/supported-housing")
      end
    end

    context "when signed in as a support user" do
      before do
        allow(user).to receive(:need_two_factor_authentication?).and_return(false)
        sign_in user
        get "/supported-housing"
      end

      it "has page heading" do
        expect(page).to have_content("Supported housing services")
      end

      it "shows all schemes" do
        schemes.each do |scheme|
          expect(page).to have_content(scheme.code)
        end
      end

      it "shows a search bar" do
        expect(page).to have_field("search", type: "search")
      end

      it "has correct title" do
        expect(page).to have_title("Supported housing services - Submit social housing lettings and sales data (CORE) - GOV.UK")
      end

      it "shows the total organisations count" do
        expect(CGI.unescape_html(response.body)).to match("<strong>#{schemes.count}</strong> total schemes.")
      end

      it "has hidden accebility field with description" do
        expected_field = "<h2 class=\"govuk-visually-hidden\">Supported housing services</h2>"
        expect(CGI.unescape_html(response.body)).to include(expected_field)
      end

      context "when paginating over 20 results" do
        let(:total_schemes_count) { Scheme.count }

        before do
          FactoryBot.create_list(:scheme, 20)
        end

        context "when on the first page" do
          before do
            get "/supported-housing"
          end

          it "shows the total schemes count" do
            expect(CGI.unescape_html(response.body)).to match("<strong>#{total_schemes_count}</strong> total schemes.")
          end

          it "shows which schemes are being shown on the current page" do
            expect(CGI.unescape_html(response.body)).to match("Showing <b>1</b> to <b>20</b> of <b>#{total_schemes_count}</b> schemes")
          end

          it "has correct page 1 of 2 title" do
            expect(page).to have_title("Supported housing services (page 1 of 2) - Submit social housing lettings and sales data (CORE) - GOV.UK")
          end

          it "has pagination links" do
            expect(page).to have_content("Previous")
            expect(page).not_to have_link("Previous")
            expect(page).to have_content("Next")
            expect(page).to have_link("Next")
          end
        end

        context "when on the second page" do
          before do
            get "/supported-housing?page=2"
          end

          it "shows the total schemes count" do
            expect(CGI.unescape_html(response.body)).to match("<strong>#{total_schemes_count}</strong> total schemes.")
          end

          it "has pagination links" do
            expect(page).to have_content("Previous")
            expect(page).to have_link("Previous")
            expect(page).to have_content("Next")
            expect(page).not_to have_link("Next")
          end

          it "shows which schemes are being shown on the current page" do
            expect(CGI.unescape_html(response.body)).to match("Showing <b>21</b> to <b>25</b> of <b>#{total_schemes_count}</b> schemes")
          end

          it "has correct page 1 of 2 title" do
            expect(page).to have_title("Supported housing services (page 2 of 2) - Submit social housing lettings and sales data (CORE) - GOV.UK")
          end
        end
      end

      context "when searching" do
        let!(:searched_scheme) { FactoryBot.create(:scheme, code: "CODE321") }
        let(:search_param) { "CODE321" }

        before do
          get "/supported-housing?search=#{search_param}"
        end

        it "returns matching results" do
          expect(page).to have_content(searched_scheme.code)
          schemes.each do |scheme|
            expect(page).not_to have_content(scheme.code)
          end
        end

        it "updates the table caption" do
          expect(page).to have_content("1 scheme found matching ‘#{search_param}’")
        end

        it "has search in the title" do
          expect(page).to have_title("Supported housing services (1 scheme matching ‘#{search_param}’) - Submit social housing lettings and sales data (CORE) - GOV.UK")
        end
      end
    end
  end
end