Class: BitexBot::ClosingFlow

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/bitex_bot/models/closing_flow.rb

Overview

Close buy/sell positions.

Direct Known Subclasses

BuyClosingFlow, SellClosingFlow

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.close_open_positions ⇒ Object

Start a new CloseBuy that closes exising OpenBuy’s by selling on another exchange what was just bought on bitex.



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# File 'lib/bitex_bot/models/closing_flow.rb', line 9

def self.close_open_positions
  open_positions = open_position_class.open
  return if open_positions.empty?

  quantity = open_positions.map(&:quantity).sum
  amount = open_positions.map(&:amount).sum
  price = suggested_amount(open_positions) / quantity

  # Don't even bother trying to close a position that's too small.
  return unless Robot.taker.enough_order_size?(quantity, price)
  create_closing_flow!(price, quantity, amount, open_positions)
end

.create_closing_flow!(price, quantity, amount, open_positions) ⇒ Object 



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# File 'lib/bitex_bot/models/closing_flow.rb', line 27

def self.create_closing_flow!(price, quantity, amount, open_positions)
  create!(desired_price: price, quantity: quantity, amount: amount, open_positions: open_positions)
    .create_initial_order_and_close_position!
  nil
end

.suggested_amount(positions) ⇒ Object

close_open_positions helpers



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# File 'lib/bitex_bot/models/closing_flow.rb', line 23

def self.suggested_amount(positions)
  positions.map { |p| p.quantity * p.opening_flow.suggested_closing_price }.sum
end

Instance Method Details

#create_initial_order_and_close_position! ⇒ Object

end: close_open_positions helpers



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# File 'lib/bitex_bot/models/closing_flow.rb', line 34

def create_initial_order_and_close_position!
  create_order_and_close_position(quantity, desired_price)
end

#estimate_fiat_profit ⇒ Object 



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# File 'lib/bitex_bot/models/closing_flow.rb', line 44

def estimate_fiat_profit
  raise 'self subclass responsibility'
end

#positions_balance_amount ⇒ Object 



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# File 'lib/bitex_bot/models/closing_flow.rb', line 48

def positions_balance_amount
  close_positions.sum(:amount) * fx_rate
end

#sync_closed_positions(orders, transactions) ⇒ Object

TODO: should receive a order_ids and user_transaccions array, then each Wrapper should know how to search for them.



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# File 'lib/bitex_bot/models/closing_flow.rb', line 39

def sync_closed_positions(orders, transactions)
  # Maybe we couldn't create the bitstamp order when this flow was created, so we try again when syncing.
  latest_close.nil? ? create_initial_order_and_close_position! : create_or_cancel!(orders, transactions)
end