# frozen_string_literal: true

module Decidim
  module DecidimAwesome
    module AmendmentsHelperOverride
      extend ActiveSupport::Concern

      included do
        # original method
        alias_method :decidim_amendments_form_field_for, :amendments_form_field_for

        # override with custom fields if scope applies
        def amendments_form_field_for(attribute, form, original_resource)
          custom_fields = awesome_custom_fields(attribute, form)
          return decidim_amendments_form_field_for(attribute, form, original_resource) if custom_fields.blank?

          render_amendment_custom_fields_override(custom_fields, attribute, form, original_resource)
        end

        private

        def render_amendment_custom_fields_override(fields, attribute, form, original_resource)
          custom_fields = Decidim::DecidimAwesome::CustomFields.new(fields)
          custom_fields.translate!
          body = amendments_form_fields_value(original_resource, attribute)
          custom_fields.apply_xml(body) if body.present?
          # TODO: find a way to add errors as form is not the parent form
          # form.object.errors.add(attribute, custom_fields.errors) if custom_fields.errors
          render partial: "decidim/decidim_awesome/custom_fields/form_render", locals: { spec: custom_fields.to_json, form: form, name: attribute }
        end

        # Amendments don't use a URL specifying participatory space and component
        # context for awesome config constraints must be obtained from the resource
        def awesome_custom_fields(attribute, _form)
          return unless attribute == :body

          component = amendable.try(:component)
          return unless component
          return if component.settings.participatory_texts_enabled?

          awesome_config = Decidim::DecidimAwesome::Config.new(component.organization)
          awesome_config.context_from_component(component)
          awesome_config.collect_sub_configs_values("proposal_custom_field")
        end
      end
    end
  end
end