# frozen_string_literal: true

module Decidim
  module ParticipatoryProcesses
    module Admin
      # A command with all the business logic when creating a new participatory
      # process group in the system.
      class UpdateParticipatoryProcessGroup < Rectify::Command
        # Public: Initializes the command.
        #
        # participatory_process_group - the ParticipatoryProcessGroup to update
        # form - A form object with the params.
        def initialize(participatory_process_group, form)
          @participatory_process_group = participatory_process_group
          @form = form
        end

        # Executes the command. Broadcasts these events:
        #
        # - :ok when everything is valid.
        # - :invalid if the form wasn't valid and we couldn't proceed.
        #
        # Returns nothing.
        def call
          return broadcast(:invalid) if form.invalid?

          update_participatory_process_group

          if @participatory_process_group.valid?
            broadcast(:ok, @participatory_process_group)
          else
            form.errors.add(:hero_image, @participatory_process_group.errors[:hero_image]) if @participatory_process_group.errors.include? :hero_image
            broadcast(:invalid)
          end
        end

        private

        attr_reader :form

        def update_participatory_process_group
          Decidim.traceability.perform_action!(
            "update",
            @participatory_process_group,
            form.current_user
          ) do
            @participatory_process_group.assign_attributes(attributes)
            @participatory_process_group.save! if @participatory_process_group.valid?
          end
        end

        def attributes
          {
            name: form.name,
            hero_image: form.hero_image,
            remove_hero_image: form.remove_hero_image,
            description: form.description,
            participatory_processes: participatory_processes
          }
        end

        def participatory_processes
          Decidim::ParticipatoryProcess.where(id: form.participatory_process_ids)
        end
      end
    end
  end
end