submit-social-housing-lettings-and-sales-data/app/helpers/collection_time_helper.rb

module CollectionTimeHelper
  def current_collection_start_year
    today = Time.zone.now
    window_end_date = Time.zone.local(today.year, 4, 1)
    today < window_end_date ? today.year - 1 : today.year
  end

  def collection_start_date(date)
    window_end_date = Time.zone.local(date.year, 4, 1)
    date < window_end_date ? Time.zone.local(date.year - 1, 4, 1) : Time.zone.local(date.year, 4, 1)
  end

  def current_collection_start_date
    Time.zone.local(current_collection_start_year, 4, 1)
  end
end