# frozen_string_literal: true

module Labels
  class UpdateService < Labels::BaseService
    attr_reader :current_user

    def initialize(current_user = nil, params = {})
      @current_user = current_user
      @params = params.to_h.dup.with_indifferent_access
    end

    # returns the updated label
    def execute(label)
      params[:name] = params.delete(:new_name) if params.key?(:new_name)
      params[:color] = convert_color_name_to_hex if params[:color].present?
      params.delete(:lock_on_merge) unless allow_lock_on_merge?(label)

      label.update(params)
      label
    end

    private

    def allow_lock_on_merge?(label)
      return if label.template?
      return unless label.respond_to?(:parent_container)
      return unless label.parent_container.supports_lock_on_merge?

      # If we've made it here, then we're allowed to turn it on. However, we do _not_
      # want to allow it to be turned off. So if it's already set, then don't allow the possibility
      # that it could be turned off.
      !label.lock_on_merge
    end
  end
end

Labels::UpdateService.prepend_mod_with('Labels::UpdateService')
