Class: BitexBot::Robot

Inherits:
Object
  • Object
show all
Defined in:
lib/bitex_bot/robot.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.run! ⇒ Object

Trade constantly respecting cooldown times so that we don’t get banned by api clients.



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# File 'lib/bitex_bot/robot.rb', line 40

def self.run!
  setup
  logger.info("Loading trading robot, ctrl+c *once* to exit gracefully.")
  self.cooldown_until = Time.now
  bot = new
  
  while true
    start_time = Time.now
    next if start_time < cooldown_until
    self.current_cooldowns = 0
    bot.trade!
    # This global sleep is so that we don't stress bitex too much.
    sleep 0.3 unless test_mode
    self.cooldown_until = start_time + current_cooldowns.seconds
  end
end

.setup ⇒ Object 



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# File 'lib/bitex_bot/robot.rb', line 57

def self.setup
  Bitex.api_key = Settings.bitex
  Bitex.sandbox = Settings.sandbox
  taker.setup(Settings)
end

.with_cooldown(&block) ⇒ Object 



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# File 'lib/bitex_bot/robot.rb', line 63

def self.with_cooldown(&block)
  result = block.call
  return result if test_mode
  self.current_cooldowns += 1
  sleep 0.1 
  return result
end

Instance Method Details

#active_closing_flows? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bitex_bot/robot.rb', line 123

def active_closing_flows?
  BuyClosingFlow.active.exists? || SellClosingFlow.active.exists?
end

#active_opening_flows? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bitex_bot/robot.rb', line 215

def active_opening_flows?
  BuyOpeningFlow.active.exists? || SellOpeningFlow.active.exists?
end

#finalise_some_opening_flows ⇒ Object 



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# File 'lib/bitex_bot/robot.rb', line 97

def finalise_some_opening_flows
  [BuyOpeningFlow, SellOpeningFlow].each do |kind|
    flows = self.class.graceful_shutdown ? kind.active : kind.old_active
    flows.each{|flow| flow.finalise! }
  end
end

#notify(message) ⇒ Object 



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# File 'lib/bitex_bot/robot.rb', line 219

def notify(message)
  self.class.logger.error(message)
  if Settings.mailer
    mail = Mail.new do
      from Settings.mailer.from
      to Settings.mailer.to
      subject 'Notice from your robot trader'
      body message
    end
    mail.delivery_method(Settings.mailer.method.to_sym,
      Settings.mailer.options.symbolize_keys)
    mail.deliver!
  end
end

#open_positions? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/bitex_bot/robot.rb', line 108

def open_positions?
  OpenBuy.open.exists? || OpenSell.open.exists?
end

#start_closing_flows ⇒ Object 



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# File 'lib/bitex_bot/robot.rb', line 104

def start_closing_flows
  [BuyClosingFlow, SellClosingFlow].each{|kind| kind.close_open_positions}
end

#start_opening_flows_if_needed ⇒ Object 



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# File 'lib/bitex_bot/robot.rb', line 127

def start_opening_flows_if_needed
  if store.reload.hold?
    BitexBot::Robot.logger.debug("Not placing new orders because of hold")
    return
  end
  
  if active_closing_flows?
    BitexBot::Robot.logger.debug("Not placing new orders, closing flows.")
    return
  end
  
  if self.class.graceful_shutdown
    BitexBot::Robot.logger.debug("Not placing new orders, shutting down.")
    return
  end
  
  recent_buying, recent_selling =
    [BuyOpeningFlow, SellOpeningFlow].collect do |kind|
      threshold = (Settings.time_to_live / 2).seconds.ago
      kind.active.where('created_at > ?', threshold).first
    end

  if recent_buying && recent_selling
    BitexBot::Robot.logger.debug("Not placing new orders, recent ones exist.")
    return
  end
  
  balances = with_cooldown{ BitexBot::Robot.taker.balance }
  profile = Bitex::Profile.get
  
  total_usd = balances['usd_balance'].to_d + profile[:usd_balance]
  total_btc = balances['btc_balance'].to_d + profile[:btc_balance]
  
  last_log = `tail -c 61440 #{Settings.log.try(:file)}` if Settings.log.try(:file)
  
  store.update_attributes(taker_usd: balances['usd_balance'],
    taker_btc: balances['btc_balance'], log: last_log)
  
  if store.last_warning.nil? || store.last_warning < 30.minutes.ago 
    if store.usd_warning && total_usd <= store.usd_warning
      notify("USD balance is too low, it's #{total_usd},"\
        "make it #{store.usd_warning} to stop this warning.")
      store.update_attributes(last_warning: Time.now)
    end

    if store.btc_warning && total_btc <= store.btc_warning
      notify("BTC balance is too low, it's #{total_btc},"\
        "make it #{store.btc_warning} to stop this warning.")
      store.update_attributes(last_warning: Time.now)
    end
  end

  if store.usd_stop && total_usd <= store.usd_stop
    BitexBot::Robot.logger.debug("Not placing new orders, USD target not met")
    return
  end
  if store.btc_stop && total_btc <= store.btc_stop
    BitexBot::Robot.logger.debug("Not placing new orders, BTC target not met")
    return
  end

  order_book = with_cooldown{ BitexBot::Robot.taker.order_book }
  transactions = with_cooldown{ BitexBot::Robot.taker.transactions }
  
  unless recent_buying
    BuyOpeningFlow.create_for_market(
      balances['btc_available'].to_d,
      order_book['bids'],
      transactions,
      profile[:fee],
      balances['fee'].to_d,
      store)
  end
  unless recent_selling
    SellOpeningFlow.create_for_market(
      balances['usd_available'].to_d,
      order_book['asks'],
      transactions,
      profile[:fee],
      balances['fee'].to_d,
      store)
  end
end

#store ⇒ Object

The trader has a Store



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# File 'lib/bitex_bot/robot.rb', line 235

def store
  @store ||= Store.first || Store.create
end

#sync_closing_flows ⇒ Object 



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# File 'lib/bitex_bot/robot.rb', line 112

def sync_closing_flows
  orders = with_cooldown{ BitexBot::Robot.taker.orders }
  transactions = with_cooldown{ BitexBot::Robot.taker.user_transactions }

  [BuyClosingFlow, SellClosingFlow].each do |kind|
    kind.active.each do |flow|
      flow.sync_closed_positions(orders, transactions)
    end
  end
end

#sync_opening_flows ⇒ Object 



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# File 'lib/bitex_bot/robot.rb', line 211

def sync_opening_flows
  [SellOpeningFlow, BuyOpeningFlow].each{|o| o.sync_open_positions }
end

#trade! ⇒ Object 



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# File 'lib/bitex_bot/robot.rb', line 75

def trade!
  sync_opening_flows if active_opening_flows?
  finalise_some_opening_flows
  if(!active_opening_flows? && !open_positions? &&
    !active_closing_flows? && self.class.graceful_shutdown)
    self.class.logger.info("Shutdown completed")
    exit
  end
  start_closing_flows if open_positions?
  sync_closing_flows if active_closing_flows?
  start_opening_flows_if_needed
rescue CannotCreateFlow => e
  self.notify("#{e.message}:\n\n#{e.backtrace.join("\n")}")
  sleep (60 * 3) unless self.class.test_mode
rescue Curl::Err::TimeoutError => e
  self.class.logger.error("#{e.class} - #{e.message}:\n\n#{e.backtrace.join("\n")}")
  sleep 15 unless self.class.test_mode
rescue StandardError => e
  self.notify("#{e.class} - #{e.message}:\n\n#{e.backtrace.join("\n")}")
  sleep 120 unless self.class.test_mode
end

#with_cooldown(&block) ⇒ Object 



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# File 'lib/bitex_bot/robot.rb', line 71

def with_cooldown(&block)
  self.class.with_cooldown(&block)
end