# -----------------------------------------------------------------------
#  Copyright © 2012 ShepHertz Technologies Pvt Ltd. All rights reserved.
# -----------------------------------------------------------------------

require 'json/pure'
require 'App42_Ruby_API/App42ResponseBuilder'
require 'geo/Geo'
require 'geo/GeoPoint'

module App42
  module Geo
    #
    #
    # GeoResponseBuilder class converts the JSON response retrieved from the server
    # to the value object i.e Geo
    #
    #
    class GeoResponseBuilder < App42ResponseBuilder
      #
      # Converts the response in JSON format to the value object i.e Geo
      #
      # @param json
      #      - response in JSON format
      #
      # @return Geo object filled with json data
      #
      #
      def buildResponse(json)
        puts "testing #{json}"
        geoObj = Geo.new()
        pointList = Array.new
        geoObj.pointList=(pointList)

        geoObj.strResponse=json
        jsonObj = JSON.parse(json)
        jsonObjApp42 = jsonObj.fetch("app42")
        jsonObjResponse = jsonObjApp42.fetch("response")
        geoObj.isResponseSuccess = jsonObjResponse.fetch("success")
        jsonObjGeoStorage = jsonObjResponse.fetch("geo").fetch("storage")

        buildObjectFromJSONTree(geoObj, jsonObjGeoStorage);

        if jsonObjGeoStorage.key?("points") == false
          return geoObj
        end

        buildInternalObj(geoObj, jsonObjGeoStorage);
        return geoObj;
      end

      #
      # Converts the response in JSON format to the list of value objects i.e Geo
      #
      # @param json
      #      - response in JSON format
      #
      # @return List of Geo Points object filled with json data
      #
      #

      def buildArrayResponse(json)
        geoObjList = Array.new

        jsonObj = JSON.parse(json)
        jsonObjApp42 = jsonObj.fetch("app42")
        jsonObjResponse = jsonObjApp42.fetch("response")
        jsonObjGeoStorage = jsonObjResponse.fetch("geo")

        if jsonObjGeoStorage.fetch("storage").instance_of?(Hash)
          #Single Item
          jsonObjGeoStorage = jsonObjGeoStorage.fetch("storage");
          geoObj = App42::Geo::Geo.new()
          pointList = Array.new
          geoObj.pointList=pointList
          geoObj.strResponse=json
          geoObj.isResponseSuccess = jsonObjResponse.fetch("success")

          buildObjectFromJSONTree(geoObj, jsonObjGeoStorage);
          geoObjList.push(geoObj)

          if jsonObjGeoStorage.key?("points")
            buildInternalObj(geoObj,jsonObjGeoStorage);
          end

        else
          jsonStorageArray = jsonObjGeoStorage.fetch("storage");

          jsonStorageArray.length.times do |i|
            jsonObjStorage = jsonStorageArray[i]
            geoObj = App42::Geo::Geo.new()
            pointList = Array.new
            geoObj.pointList=pointList
            geoObj.strResponse=json
            geoObj.isResponseSuccess = jsonObjResponse.fetch("success")
            buildObjectFromJSONTree(geoObj, jsonObjStorage);
            geoObjList.push(geoObj)

            if jsonObjStorage.key?("points")
              buildInternalObj(geoObj,jsonObjStorage);
            end

          end
        end
        return geoObjList
      end

      #
      # Converts the Geo JSON object to the value object i.e Geo
      #
      # @param jsonObjGeoStorage
      #      - geo data as JSONObject
      # @param geoObj
      #      - new geo object
      #
      # @return Geo object filled with json data
      #
      #

      def buildInternalObj(geoObj, jsonObjGeoStorage)
        jsonGeoPoints = jsonObjGeoStorage.fetch("points");

        if jsonGeoPoints.key?("point") == false
          return geoObj
        end

        if jsonGeoPoints.fetch("point").instance_of?(Hash)
          #Only One attribute is there
          jsonObjPoint = jsonGeoPoints.fetch("point")
          pointsItem = App42::Geo::Point.new(geoObj)
          buildObjectFromJSONTree(pointsItem, jsonObjPoint);
        else
          #There is an Array of attribute
          jsonObjPointsArray = jsonGeoPoints.fetch("point");
          jsonObjPointsArray.length.times do |i|
            jsonObjPoint = jsonObjPointsArray[i]
            pointsItem = App42::Geo::Point.new(geoObj)
            buildObjectFromJSONTree(pointsItem, jsonObjPoint);

          end
        end
        return geoObj;
      end
    end
  end
end