DynamoMTL/mercury-engine

module PagesHelper
  SIMPLE_TAGS = %w(h1 h2 h3 h4 h5 h6 a span label)

  def format_content(content)
    content.reduce({}) do |hash, (key, data)|
      hash[key.to_s] = data[:value] || data[:attributes][:src]
      hash
    end
  end

  def editable(id, tag=:div, options={}, &block)
    content        = content_for(id)
    type           = options[:type] || find_type_for_tag(tag)

    if tag.is_a?(Hash)
      options = tag if tag.is_a?(Hash)
      tag = :div
    end

    options[:id] = id

    set_mercury_options(options, type)

    if type == :simple
      if content
        content_tag(tag, content, options.except(:type))
      else
        content_tag(tag, options.except(:type), &block)
      end
    else
      content_tag(tag, options.except(:type), false) do
        raw(content || (block.call if block))
      end
    end
  end
  
  def editable_image(id, default=nil, options = {})
    options.symbolize_keys!
    source  = content_for(id) || default
    opts = {id: id}
    opts.merge! options

    set_mercury_options(opts, :image)
    image_tag(source, opts)
  end

  def title
    editable(:title, :h1) { @page.content[:title] }
  end

  def content_for(id)
    @page.content[id.to_s] if @page
  end

  def set_mercury_options(options, type)
    if params[:mercury_frame]
      options[:data] ||= {}
      options[:data][:mercury] = type
    end
  end

  def find_type_for_tag(tag)
    if SIMPLE_TAGS.include?(tag.to_s)
      :simple
    else
      :full
    end
  end

  def template_path(path)
    return 'index' if path.blank?

    if template_exists?(path + '/index', %w(pages))
      path + '/index'
    else
      path
    end
  end
end