require "rails_helper"

RSpec.describe StartController, type: :request do
  let(:user) { create(:user) }
  let(:headers) { { "Accept" => "text/html" } }
  let(:page) { Capybara::Node::Simple.new(response.body) }
  let(:notify_client) { instance_double(Notifications::Client) }
  let(:devise_notify_mailer) { DeviseNotifyMailer.new }

  before do
    allow(DeviseNotifyMailer).to receive(:new).and_return(devise_notify_mailer)
    allow(devise_notify_mailer).to receive(:notify_client).and_return(notify_client)
    allow(notify_client).to receive(:send_email).and_return(true)
  end

  describe "GET" do
    context "when the user is not signed in" do
      it "routes user to the start page" do
        get "/", headers: headers, params: {}
        expect(path).to eq("/")
        expect(page).to have_content("Start now")
      end
    end

    context "when the user is signed in" do
      before do
        sign_in user
      end

      it "routes user to the home page" do
        get "/", headers:, params: {}
        expect(page).to have_content("Welcome back")
      end

      context "and 2023 collection window is open for editing" do
        before do
          allow(Time).to receive(:now).and_return(Time.zone.local(2024, 1, 1))
        end

        it "displays correct resources for 2022/23 and 2023/24 collection years" do
          get "/", headers: headers, params: {}
          expect(page).to have_content("Lettings 2023/24")
          expect(page).to have_content("Sales 2023/24")
        end
      end

      context "and 2023 collection window is closed for editing" do
        before do
          allow(Time).to receive(:now).and_return(Time.zone.local(2025, 1, 1))
        end

        it "displays correct resources for 2022/23 and 2023/24 collection years" do
          get "/", headers: headers, params: {}
          expect(page).not_to have_content("Lettings 2023/24")
          expect(page).not_to have_content("Sales 2023/24")
        end
      end

      it "shows guidance link" do
        get "/", headers: headers, params: {}
        expect(page).to have_content("Guidance for submitting social housing lettings and sales data (CORE)")
      end
    end
  end

  describe "guidance page" do
    context "when the user is not signed in" do
      it "routes user to the guidance page" do
        get "/guidance", headers:, params: {}
        expect(page).to have_content("Guidance for submitting social housing lettings and sales data")
      end
    end

    context "when the user is signed in" do
      before do
        sign_in user
      end

      it "routes user to the guidance page" do
        get "/guidance", headers:, params: {}
        expect(page).to have_content("Guidance for submitting social housing lettings and sales data")
      end
    end
  end
end