TagBuilder

tagbuilder.rb

class TagBuilder
  def initialize(context, tag_name, content = nil, klass: nil, default_attributes: {}, **attributes, &block)
    @context            = context
    @tag_name           = tag_name
    @content            = content
    @klass              = klass
    @default_attributes = default_attributes
    @attributes         = attributes
    @block              = block
  end

  def render
    content_tag tag_name, content, class: merged_classes, **merged_attributes
  end

  private
    attr_reader :context, :tag_name, :content, :klass, :default_attributes, :attributes, :block
    delegate :content_tag, :class_names, to: :context

    def merged_classes
      @merged_classes ||= class_names(klass, attributes.delete(:class))
    end

    def merged_attributes
      @merged_attributes ||= default_attributes.deep_merge(attributes)
    end
end