module Pulitzer
  module ContentElementHelper

    def cms_content_present?(element)
      element.present? && element.has_content?
    end

    def render_cms_element(element,options = {})
      if element.image_type?
        render_image_element(element,options)
      elsif element.video_type?
        render_video_element(element,options)
      elsif element.clickable_type?
        render_clickable_element(element,options)
      else
        render_body(element,options)
      end
    end

    def render_image_element(element,options = {})
      if element.image?
        pulitzer_options = {'data-pulitzer-element' => element.id}
        if options.is_a? Hash
          pulitzer_options.merge!(options)
        end
        image_tag element.image_url(:cms), pulitzer_options
      end
    end

    def render_picture_source(element,options = {})
      content_tag(:source, nil, options.merge(srcset: element.image_url(:cms)))
    end

    def render_img_srcset(element,options = {})
      content_tag(:img, nil, options.merge(srcset: element.image_url(:cms)))
    end

    def render_cms_image_path(element,options = {})
      element.image_url(:cms)
    end

    def render_clickable_element(element, options = {})
      if element.custom_type?
        render_button(element, options)
      else
        render_link(element, options)
      end
    end

    def render_link(element,options = {})
      content_tag(:a, element.title, options.merge(href: element.content, class: element.style.css_class_name))
    end

    def render_button(element,options = {})
      content_tag(:button, element.title, options.merge('data-pulitzer-action' => element.content, class: element.style.css_class_name))
    end

    def render_video_element(element, options = {})
      content_tag(:iframe, nil, options.merge(src: element.video_link)) if element.video_link
    end

    def render_body(element, options = {})
      content_tag(:span, element.body.html_safe, options) if element.body
    end

    def render_cms_html(element, options = {})
      content_tag(:span, element.html, options) if element.html
    end

    def render_cms_url(element, options ={})
       element.body.html_safe if element.html
    end

    def render_cms_section(version, section_name)
      version.section(section_name).partials.collect do |partial|
        if partial.has_display?
          render partial: partial.full_view_path, locals: {partial: partial}
        end
      end.join.html_safe
    end
  end
end