module Coco
  module App
    module Elements
      class SystemBanner < Coco::Component
        include Concerns::AcceptsOptions
        include Concerns::WrapsComponent

        accepts_option :dismissable, from: [true, false], default: false

        wraps_component :alert do |args|
          theme = vivid_theme_name(args.fetch(:theme, nil)) || :info_vivid
          Coco::App::Elements::Alert.new(
            **args,
            theme: theme,
            banner: true,
            cloak: false,
            single_line: true,
            dismissable: dismissable?,
            condensed: true
          )
        end

        %i[action secondary_action link].each do |slot_name|
          renders_one slot_name, ->(*args, **kwargs, &block) do
            alert.send("with_#{slot_name}".to_sym, *args, **kwargs, &block)
          end
        end

        renders_one :title, ->(text = nil, **kwargs, &block) do
          alert.public_send(:with_title, **kwargs) { text.presence || block.call }
        end

        renders_one :message, ->(text = nil, **kwargs, &block) do
          alert.public_send(:with_message, **kwargs) { text.presence || block.call }
        end

        before_render do
          if dismissable? && id.blank?
            raise ArgumentError, "Dismissable banners must be given an ID"
          end
        end

        attr_reader :dismiss_for, :id

        def initialize(id: nil, dismiss_for: nil, **)
          @id = id
          @dismiss_for = dismiss_for
          set_tag_attr(:id, id)
        end

        def dismissable?
          get_option_value(:dismissable) == true
        end

        def render?
          helpers.cookies[dismiss_cookie_name] != "true"
        end

        def dismiss_cookie_name
          "cb_system_banner_#{tag_attr(:id)&.underscore}_dismissed".to_sym
        end

        def alpine_data
          dismissable? ? {
            cookie_name: dismiss_cookie_name,
            cookie_expiry: dismiss_for&.in_days&.to_i,
            cookie_value: "true"
          } : {}
        end

        private

        def vivid_theme_name(theme)
          if theme.present?
            "#{theme.to_s.underscore.gsub("_vivid", "")}_vivid".to_sym
          end
        end
      end
    end
  end
end