view.cr

abstract class LuckyWeb::HTMLView
  abstract def render

  def initialize
    @io = IO::Memory.new
  end

  EMPTY_HTML_ATTRS = {} of String => String

  def h6(&block)
    h6(EMPTY_HTML_ATTRS) do
      yield
    end
  end

  def h6(content, options)
    h6(options) do
      text content
    end
  end

  def h6(content, **options)
    h6(options) do
      text content
    end
  end

  def h6(content : String)
    h6(EMPTY_HTML_ATTRS) do
      text content
    end
  end

  def h6(options, &block)
    tag_attrs = build_tag_attrs(options)
    @io << %(<h6#{tag_attrs}>)
    yield
    @io << %(</h6>)
  end

  def text(content : String)
    @io << content
  end

  private def build_tag_attrs(options)
    tag_attrs = String.build do |attrs|
      options.each do |key, value|
        attrs << %( #{key}="#{value}")
      end
    end
  end

  private def build_tag_attrs(**options)
    tag_attrs = String.build do |attrs|
      options.each do |key, value|
        attrs << %( #{key}="#{value}")
      end
    end
  end
end