trustieforge/app/api/mobile/entities/jours.rb

module Mobile
  module Entities
    #普通留言
    class Jours < Grape::Entity
      include Redmine::I18n
      def self.jours_expose(field)
        expose field do |f,opt|
          if f.is_a?(Hash) && f.key?(field)
            f[field]
          elsif f.is_a?(::JournalsForMessage) && f.respond_to?(field)
            if field == :created_on
              format_time(f.send(field))
            else
              f.send(field)
            end
          else
            case field
              when :lasted_comment
                time_from_now f.created_on
              when :comment_count
                # f.children.count
                all_comments = []
                get_all_children(all_comments, f).count
              when :praise_count
                get_activity_praise_num(f)
              when :act_type
                'JournalsForMessage'
              when :act_id
                f.id
              when :content
                f.notes
            end
          end
        end
      end

      jours_expose :act_type
      jours_expose :act_id
      jours_expose :id
      jours_expose :jour_type
      jours_expose :jour_id
      expose :user,using: Mobile::Entities::User do |f, opt|
        f.user
      end
      jours_expose :created_on
      jours_expose :lasted_comment
      jours_expose :content
      jours_expose :m_reply_id
      jours_expose :m_parent_id
      jours_expose :comment_count
      jours_expose :praise_count
      expose :course,using:Mobile::Entities::Course do |f,opt|
        if f.is_a?(::JournalsForMessage) && f[:jour_type] == "Course"
          f.course
        end
      end
      expose :reply_user,using: Mobile::Entities::User do |f, opt|
        f.at_user
      end
      expose :all_children,using: Mobile::Entities::Jours do |f, opt|
        if f.is_a?(::JournalsForMessage)
          # f.children.reverse
          if !opt[:children] && opt[:comment_type].nil?
            if f.parent.nil? && opt[:type] == 0
              opt[:children] = true
              all_comments = []
              tStart = opt[:page]*5
              tEnd = (opt[:page]+1)*5 - 1

              all_comments = get_all_children(all_comments, f)[tStart..tEnd]
              all_comments
            end
          end
        end
      end
      expose :has_praise , if: lambda { |instance, options| options[:user] } do |instance, options|
        has_praise = false
        current_user = options[:user]
        obj = PraiseTread.where("praise_tread_object_id=? and praise_tread_object_type=? and user_id=?",instance.id,instance.class.to_s,current_user.id)
        has_praise = obj.empty? ? false : true
        has_praise
      end

      expose :parents_count, if: lambda { |instance, options| options[:user] } do |instance, options|
        parents_reply = []

        if options[:comment_type].nil?
          parents_reply = get_reply_parents_no_root(parents_reply, instance)
        elsif options[:comment_type] == "homework"
          parents_reply = get_reply_parents(parents_reply, instance)
        end
        parents_reply.count
      end

      expose :parents_reply_bottom, using:Mobile::Entities::Jours do |f,opt|
        if f.is_a? (::JournalsForMessage)
          #取二级回复的底楼层
          parents_reply = []
          if opt[:comment_type].nil?
            parents_reply = get_reply_parents_no_root(parents_reply, f)
          elsif opt[:comment_type] == "homework"
            parents_reply = get_reply_parents(parents_reply, f)
          end
          if parents_reply.count > 0 && !opt[:bottom]
            if opt[:type] == 1
              # opt[:bottom] = true
              # parents_reply[opt[:page]..opt[:page]]
            else
              opt[:bottom] = true
              parents_reply[0..0]
            end
          else
            []
          end
        end
      end

      expose :parents_reply_top, using:Mobile::Entities::Jours do |f,opt|
        if f.is_a? (::JournalsForMessage)
          #取二级回复的顶楼层
          parents_reply = []

          if opt[:comment_type].nil?
            parents_reply = get_reply_parents_no_root(parents_reply, f)
          elsif opt[:comment_type] == "homework"
            parents_reply = get_reply_parents(parents_reply, f)
          end
          if parents_reply.count > 2 && !opt[:top]
            if opt[:type] == 1
              opt[:top] = true
              tStart = (opt[:page]-1)*5+2
              tEnd = (opt[:page])*5+2 - 1

              if tEnd >= parents_reply.count - 1
                tEnd = parents_reply.count - 2
              end

              if tStart <= parents_reply.count - 2
                parents_reply = parents_reply.reverse[tStart..tEnd]
                parents_reply.reverse
              else
                []
              end
            else
              opt[:top] = true
              parents_reply = parents_reply.reverse[0..1]
              parents_reply.reverse
            end
          elsif parents_reply.count == 2 && !opt[:top]
              opt[:top] = true
              parents_reply = parents_reply.reverse[0..0]
              parents_reply.reverse
          else
            []
          end
        end
      end

    end
  end
end