trader.rb

require_relative 'trade_functions.rb'
require_relative 'lykke_private_api'
require 'time'
class Trader
  include TradeFunctions

  def initialize(trading,minimum_profit_per_trade)
    @trading = trading
    @min_profit = minimum_profit_per_trade
  end
  def wait_until_filled(order)
    filled = @private_api.get_order_by_id(order["payload"]["orderId"])["payload"]["status"]
    while filled != "Matched"
      filled = @private_api.get_order_by_id(order["payload"]["orderId"])["payload"]["status"]
      puts filled["status"]
      sleep 0.6
    end
    sleep  0.6
  end
  def trade_specified_chain(to_execute)
    if @trading
      @private_api = LykkeRestApi::PrivateClient.new
      if to_execute.profit.to_f >= @min_profit
        order1 = @private_api.place_a_limit_order(to_execute.start.assetPairId,'buy',to_execute.start_quantity,calculate_price(to_execute.start,:ask))
        puts "order 1 placed - #{to_execute.start.assetPairId}"
        unless @private_api.get_order_by_id(order1["payload"]["orderId"])["payload"]["status"]  == 'Matched'
          wait_until_filled(order1)
        end
        puts "order 1 filled - - #{to_execute.start.assetPairId}"
        order2 = @private_api.place_a_limit_order(to_execute.middle.assetPairId,'sell',to_execute.middle_quantity,calculate_price(to_execute.middle))
        puts "order 2 placed - #{to_execute.middle.assetPairId}"
        unless @private_api.get_order_by_id(order2["payload"]["orderId"])["payload"]["status"] == 'Matched'
          wait_until_filled(order2)
        end
        puts "order 2 filled - #{to_execute.middle.assetPairId}"
        order3 = @private_api.place_a_limit_order(to_execute.ending.assetPairId,'sell',to_execute.end_quantity,calculate_price(to_execute.ending))
        puts "order 3 placed - #{to_execute.ending.assetPairId}"
        unless @private_api.get_order_by_id(order3["payload"]["orderId"])["payload"]["status"] == 'Matched'
          wait_until_filled(order3)
        end
        puts "order 3 filled - #{to_execute.ending.assetPairId}"
      end
      sleep 0.6
    end
  end
end