# frozen_string_literal: true

require 'spec_helper'

describe Challenge::GiftExchangeController do
  include LoginMacros
  include RedirectExpectationHelper

  let(:challenge) { GiftExchange.new }
  let(:collection) { create(:collection, challenge: challenge) }
  let(:owner) { collection.owners.first.user }

  before { fake_login_known_user(owner) }

  describe "new" do
    context "when a gift exchange challenge already exists for the collection" do
      before do
        post :new, params: { collection_id: collection.name }
      end

      it "sets a flash message" do
        expect(flash[:notice]).to eq("There is already a challenge set up for this collection.")
      end

      it "redirects to the collection's gift exchange edit page" do
        expect(response).to redirect_to(edit_collection_gift_exchange_path(collection))
      end
    end
  end

  describe "create" do
    let(:challenge) { nil }

    context "when freeform_num_required is negative (fails to save)" do
      it "renders the new template" do
        post :create, params: { collection_id: collection.name, gift_exchange: { requests_num_required: -1 } }
        expect(response).to render_template("new")
      end
    end

    it "parses dates in the specified time zone, but doesn't change Time.zone" do
      # Use travel_to so that we don't get any daylight savings time issues:
      travel_to Time.utc(2021, 6, 24) do
        expect do
          post :create, params: {
            collection_id: collection.name,
            gift_exchange: {
              signup_open: false,
              time_zone: "Sydney",
              signups_open_at_string: "2021-07-01 6:00 AM"
            }
          }
        end.not_to change { Time.zone }

        # Sydney is at +10, so we expect the UTC time to be 10 hours earlier:
        expect(collection.reload.challenge.signups_open_at).to eq(Time.utc(2021, 6, 30, 20))
      end
    end
  end

  describe "edit" do
    let(:challenge) do
      GiftExchange.new(time_zone: "Sydney",
                       signup_open: false,
                       signups_open_at: Time.utc(2021, 6, 30, 20))
    end

    it "displays dates in the challenge time zone, but doesn't change Time.zone" do
      # Use travel_to so that we don't get any daylight savings time issues:
      travel_to Time.utc(2021, 6, 24) do
        expect do
          get :edit, params: { collection_id: collection.name }
        end.not_to change { Time.zone }

        # Sydney is at +10, so the time in the form should be 10 hours after the UTC time:
        expect(assigns[:challenge].signups_open_at_string).to eq("2021-07-01 06:00AM")
      end
    end
  end

  describe "update" do
    context "when freeform_num_required is negative (fails to save)" do
      it "renders the edit template" do
        post :update, params: { collection_id: collection.name, gift_exchange: { requests_num_required: -1 } }
        expect(response).to render_template("edit")
      end
    end

    it "parses dates in the specified time zone, but doesn't change Time.zone" do
      # Use travel_to so that we don't get any daylight savings time issues:
      travel_to Time.utc(2021, 6, 24) do
        expect do
          post :create, params: {
            collection_id: collection.name,
            gift_exchange: {
              signup_open: false,
              time_zone: "Sydney",
              signups_open_at_string: "2021-07-01 6:00 AM"
            }
          }
        end.not_to change { Time.zone }

        # Sydney is at +10, so we expect the UTC time to be 10 hours earlier:
        expect(collection.reload.challenge.signups_open_at).to eq(Time.utc(2021, 6, 30, 20))
      end
    end
  end

  describe "destroy" do
    before do
      delete :destroy, params: { collection_id: collection.name }
    end

    it "removes challenge variables on Collection" do
      expect(collection.reload.challenge_id).to eq(nil)
      expect(collection.reload.challenge_type).to eq(nil)
    end

    it "redirects to the collection's main page with a notice" do
      it_redirects_to_with_notice(collection, "Challenge settings were deleted.")
    end
  end
end