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

require 'connection/RESTConnection'
require 'util/util'
require 'json/pure'

module App42
  module Game
    #
    # Allows ingame scoring. It has to be used for scoring for a parituclar Game
    # Session. If scores have to be stored across Game sessions then the service
    # ScoreBoard has to be used. It is especially useful for Multiplayer online or
    # mobile games. The Game service allows Game, User, Score and ScoreBoard
    # Management on the Cloud. The service allows Game Developer to create a Game
    # and then do in Game Scoring using the Score service. It also allows to
    # maintain a Scoreboard across game sessions using the ScoreBoard service. One
    # can query for average or highest score for user for a Game and highest and
    # average score across users for a Game. It also gives ranking of the user
    # against other users for a particular game. The Reward and RewardPoints allows
    # the Game Developer to assign rewards to a user and redeem the rewards. E.g.
    # One can give Swords or Energy etc. The services Game, Score, ScoreBoard,
    # Reward, RewardPoints can be used in Conjunction for complete Game Scoring and
    # Reward Management.
    #
    # @see Game, RewardPoint, RewardPoint, ScoreBoard
    #
    class ScoreService
      #
      # this is a constructor that takes
      #
      # @param apiKey
      # @param secretKey
      # @param baseURL
      #
      def initialize(api_key, secret_key, base_url)
        puts "Game->initialize"
        @api_key = api_key
        @secret_key = secret_key
        @base_url = base_url
        @resource = "game/score"
        @version = "1.0"
      end

      #
      # Adds game score for the specified user.
      #
      # @param gameName
      #      - Name of the game for which scores have to be added
      # @param gameUserName
      #      - The user for whom scores have to be added
      # @param gameScore
      #      - nThe scores that have to be added
      #
      # @return Game object containing the scores that has been added
      #
      # @raise App42Exception
      #

      def addScore(gameName, gameUserName, gameScore)
        puts "Add score Called "
        puts "Base url #{@base_url}"
        response = nil;
        scoreObj = nil;
        scoreObj = Game.new
        util = Util.new
        util.throwExceptionIfNullOrBlank(gameName, "Game Name");
        util.throwExceptionIfNullOrBlank(gameUserName, "User Name");
        begin
          connection = App42::Connection::RESTConnection.new(@base_url)
          body = {'app42' => {"game"=> {
            "name" => gameName,"scores" => { "score" => {
            "value" => gameScore,
            "userName" => gameUserName
            }}}}}.to_json
          puts "Body #{body}"
          query_params = Hash.new
          params = {
            'apiKey'=> @api_key,
            'version' => @version,
            'timeStamp' => util.get_timestamp_utc,
          }
          query_params = params.clone
          params.store("body", body)
          puts query_params
          signature = util.sign(@secret_key, params)
          resource_url = "#{@version}/#{@resource}/add"
          response = connection.post(signature, resource_url, query_params, body)
          puts "Response is #{response}"
          game = GameResponseBuilder.new()
          scoreObj = game.buildResponse(response)
        rescue  App42Exception =>e
          raise e
        rescue  Exception => e
          raise App42Exception.new(e)
        end
        return scoreObj
      end

      #
      # Deducts the score from users account for a particular Game
      #
      # @param gameName
      #      - Name of the game for which scores have to be deducted
      # @param gameUserName
      #      - The user for whom scores have to be deducted
      # @param gameScore
      #      - The scores that have to be deducted
      #
      # @return Game object containing the scores that has been deducted
      #
      # @raise App42Exception
      #

      def deductScore(gameName, gameUserName, gameScore)
        puts "Deduct Score Called "
        puts "Base url #{@base_url}"
        response = nil;
        scoreObj = nil;
        scoreObj = Game.new
        util = Util.new
        util.throwExceptionIfNullOrBlank(gameName, "Game Name");
        util.throwExceptionIfNullOrBlank(gameUserName, "User Name");
        begin
          connection = App42::Connection::RESTConnection.new(@base_url)
          body = {'app42' => {"game"=> {
            "name" => gameName,"scores" => { "score" => {
            "value" => gameScore,
            "userName" => gameUserName
            }}}}}.to_json
          puts "Body #{body}"
          query_params = Hash.new
          params = {
            'apiKey'=> @api_key,
            'version' => @version,
            'timeStamp' => util.get_timestamp_utc,
          }
          query_params = params.clone
          query_params = params.clone
          params.store("body", body)
          signature = util.sign(@secret_key, params)
          resource_url = "#{@version}/#{@resource}/deduct"
          response = connection.post(signature, resource_url, query_params,body)
          puts "Response is #{response}"
          game = GameResponseBuilder.new()
          scoreObj = game.buildResponse(response)
        rescue  App42Exception =>e
          raise e
        rescue  Exception => e
          raise App42Exception.new(e)
        end
        return scoreObj
      end
    end
  end
end