module Coco
  module Concerns
    module ActsAsButtonGroup
      extend ActiveSupport::Concern

      BUTTON_TYPES = {
        menu: "Coco::MenuButton",
        color_picker: "Coco::ColorPickerButton",
        layout_picker: "Coco::LayoutPickerButton",
        image_picker: "Coco::ImagePickerButton"
      }

      included do
        renders_many :items, types: {
          noop: -> {},
          divider: ->(**kwargs) { tag.div(class: "divider") },
          html: ->(&block) { block.call },
          button: ->(*args, **kwargs, &block) { coco_button(*args, **button_kwargs(kwargs, :button), &block) },
          menu_button: ->(*args, **kwargs, &block) { instantiate_button(:menu, *args, **kwargs, &block) },
          color_picker_button: ->(*args, **kwargs, &block) { instantiate_button(:color_picker, *args, **kwargs, &block) },
          image_picker_button: ->(*args, **kwargs, &block) { instantiate_button(:image_picker, *args, **kwargs, &block) },
          layout_picker_button: ->(*args, **kwargs, &block) { instantiate_button(:layout_picker, *args, **kwargs, &block) }
        }
      end

      def instantiate_button(type, *args, **kwargs, &block)
        href, content = if block
          [args.first, nil]
        else
          (args.size == 1) ? [nil, args.first] : args[0..2].reverse!
        end
        component = BUTTON_TYPES[type].constantize.new(href: href, **button_kwargs(kwargs, type))
        component.with_content(content) if !block && content.present?
        component
      end

      def init_button_group
        with_item_noop
      end

      def with_divider(...)
        with_item_divider(...)
      end

      def with_button(...)
        with_item_button(...)
      end

      def with_button_html(...)
        with_item_html(...)
      end

      def with_menu_button(...)
        with_item_menu_button(...)
      end

      def with_color_picker_button(...)
        with_item_color_picker_button(...)
      end

      def with_image_picker_button(...)
        with_item_image_picker_button(...)
      end

      def with_layout_picker_button(...)
        with_item_layout_picker_button(...)
      end

      private

      def button_kwargs(kwargs, type = nil)
        {
          size: args[:size],
          resize: args[:resize],
          **kwargs
        }
      end
    end
  end
end