module Thredded
  class TopicDecorator < SimpleDelegator
    include Rails.application.routes.url_helpers
    include ActionView::Helpers::UrlHelper

    attr_reader :topic

    def initialize(topic)
      super
      @topic = topic
    end

    def css_class
      classes = []
      classes << 'locked' if locked?
      classes << 'sticky' if sticky?
      classes << 'private' if private?
      classes += ['category'] + categories.map(&:name) if categories.present?
      classes.join(' ')
    end

    def last_user_link
      if last_user.nil?
        'Anonymous'
      else
        "<a href='/users/#{last_user}'>#{last_user}</a>".html_safe
      end
    end

    def original
      topic
    end

    def updated_at_timeago
      if updated_at.nil?
        <<-eohtml.html_safe
          <abbr>
            a little while ago
          </abbr>
        eohtml
      else
        <<-eohtml.html_safe
          <abbr class="timeago" title="#{updated_at_utc}">
            #{updated_at_str}
          </abbr>
        eohtml
      end
    end

    def created_at_timeago
      if created_at.nil?
        <<-eohtml.html_safe
          <abbr class="started_at">
            a little while ago
          </abbr>
        eohtml
      else
        <<-eohtml.html_safe
          <abbr class="started_at timeago" title="#{created_at_utc}">
            #{created_at_str}
          </abbr>
        eohtml
      end
    end

    def gravatar_url
      super.gsub /http:/, ''
    end

    private

    def updated_at_str
      updated_at.to_s
    end

    def updated_at_utc
      updated_at.getutc.iso8601
    end

    def created_at_str
      created_at.to_s
    end

    def created_at_utc
      created_at.getutc.iso8601
    end
  end
end