# frozen_string_literal: true

module Playbook
  module PbButton
    class Button < Playbook::KitBase
      prop :disabled, type: Playbook::Props::Boolean,
                      default: false
      prop :full_width, type: Playbook::Props::Boolean,
                        default: false
      prop :icon
      prop :icon_right, type: Playbook::Props::Boolean,
                        default: false
      prop :link
      prop :loading, type: Playbook::Props::Boolean,
                     default: false
      prop :new_window, type: Playbook::Props::Boolean,
                        default: false
      prop :variant, type: Playbook::Props::Enum,
                     values: %w[primary secondary link reaction],
                     default: "primary"
      prop :count, type: Playbook::Props::Number
      prop :highlight, type: Playbook::Props::Boolean,
                       default: false
      prop :target
      prop :text
      prop :type
      prop :value
      prop :size, type: Playbook::Props::Enum,
                  values: ["sm", "md", "lg", nil],
                  default: nil
      prop :form, default: nil
      prop :icon_font_family, type: Playbook::Props::Enum,
                              values: %w[far fas fab fak],
                              default: "far"

      def options
        {
          aria: aria,
          class: classname,
          data: data,
          disabled: disabled,
          id: id,
          role: "button",
          tabindex: 0,
          type: type,
          value: value,
          form: form,
        }.compact
      end

      def target_attribute
        if target && link
          target
        elsif new_window
          "_blank"
        end
      end

      def link_options
        options.tap do |option|
          option[:href] = link
          option[:role] = "link"
          option[:target] = target_attribute if target_attribute.present?
          option[:tabindex] = 0
        end
      end

      def tag
        link ? "a" : "button"
      end

      def valid_emoji(icon)
        emoji_regex = /\p{Emoji}/
        emoji_regex.match?(icon)
      end

      def classname
        button_class = generate_classname("pb_button_kit", variant, full_width_class, disabled_class, loading_class)
        button_class + size_class + default_reaction_class + highlight_active
      end

    private

      def disabled_class
        disabled ? "disabled" : "enabled"
      end

      def full_width_class
        full_width ? "block" : "inline"
      end

      def loading_class
        loading ? "loading" : nil
      end

      def size_class
        size ? " size_#{size}" : ""
      end

      def default_reaction_class
        variant === "reaction" && !object.valid_emoji(object.icon) ? " reaction_default" : ""
      end

      def highlight_active
        variant === "reaction" && object.highlight ? " active" : ""
      end
    end
  end
end