require "rails_helper"

RSpec.describe Forms::BulkUploadLettings::Year do
  subject(:form) { described_class.new }

  describe "#options" do
    before do
      allow(FormHandler.instance).to receive(:lettings_forms).and_return({ "current_lettings" => instance_double(Form, start_date: Time.zone.local(2024, 4, 1)) })
      allow(FormHandler.instance).to receive(:previous_lettings_form).and_return(instance_double(Form, start_date: Time.zone.local(2023, 4, 1)))
      allow(FormHandler.instance).to receive(:next_lettings_form).and_return(instance_double(Form, start_date: Time.zone.local(2025, 4, 1)))
    end

    context "when in a crossover period" do
      before do
        allow(FormHandler.instance).to receive(:lettings_in_crossover_period?).and_return(true)
      end

      it "returns current and previous years" do
        expect(form.options.map(&:id)).to eql([2024, 2023])
        expect(form.options.map(&:name)).to eql(%w[2024/2025 2023/2024])
      end
    end

    context "when not in a crossover period" do
      before do
        allow(FormHandler.instance).to receive(:lettings_in_crossover_period?).and_return(false)
      end

      it "returns the current year" do
        expect(form.options.map(&:id)).to eql([2024])
        expect(form.options.map(&:name)).to eql(%w[2024/2025])
      end
    end

    context "when allow_future_form_use is toggled on" do
      before do
        allow(FormHandler.instance).to receive(:lettings_in_crossover_period?).and_return(false)
        allow(FeatureToggle).to receive(:allow_future_form_use?).and_return(true)
      end

      it "returns current and next years" do
        expect(form.options.map(&:id)).to eql([2024, 2025])
        expect(form.options.map(&:name)).to eql(%w[2024/2025 2025/2026])
      end
    end
  end
end