def update_ticks(self, ask_order_dict, bid_order_dict, traded_quantity): """ Update ticks according to a TrustChain block containing the status of the ask/bid orders. :type ask_order_dict: dict :type bid_order_dict: dict :type traded_quantity: int """ ask_order_id = OrderId(TraderId(unhexlify(ask_order_dict["trader_id"])), OrderNumber(ask_order_dict["order_number"])) bid_order_id = OrderId(TraderId(unhexlify(bid_order_dict["trader_id"])), OrderNumber(bid_order_dict["order_number"])) self._logger.debug("Updating ticks in order book: %s and %s (traded quantity: %s)", str(ask_order_id), str(bid_order_id), str(traded_quantity)) # Update ask tick ask_exists = self.tick_exists(ask_order_id) if ask_exists and ask_order_dict["traded"] >= self.get_tick(ask_order_id).traded: tick = self.get_tick(ask_order_id) tick.traded = ask_order_dict["traded"] if tick.traded >= tick.assets.first.amount: self.remove_tick(tick.order_id) self.completed_orders.add(tick.order_id) elif not ask_exists and ask_order_dict["traded"] < ask_order_dict["assets"]["first"]["amount"] and \ ask_order_id not in self.completed_orders: new_pair = AssetPair.from_dictionary(ask_order_dict["assets"]) ask = Ask(ask_order_id, new_pair, Timeout(ask_order_dict["timeout"]), Timestamp(ask_order_dict["timestamp"]), traded=ask_order_dict["traded"]) self.insert_ask(ask) elif not ask_exists and ask_order_dict["traded"] >= ask_order_dict["assets"]["first"]["amount"]: self.completed_orders.add(ask_order_id) # Update bid tick bid_exists = self.tick_exists(bid_order_id) if bid_exists and bid_order_dict["traded"] >= self.get_tick(bid_order_id).traded: tick = self.get_tick(bid_order_id) tick.traded = bid_order_dict["traded"] if tick.traded >= tick.assets.first.amount: self.remove_tick(tick.order_id) self.completed_orders.add(tick.order_id) elif not bid_exists and bid_order_dict["traded"] < bid_order_dict["assets"]["first"]["amount"] and \ bid_order_id not in self.completed_orders: new_pair = AssetPair.from_dictionary(bid_order_dict["assets"]) bid = Bid(bid_order_id, new_pair, Timeout(bid_order_dict["timeout"]), Timestamp(bid_order_dict["timestamp"]), traded=bid_order_dict["traded"]) self.insert_bid(bid) elif not bid_exists and bid_order_dict["traded"] >= bid_order_dict["assets"]["first"]["amount"]: self.completed_orders.add(bid_order_id)
def test_from_dictionary(asset_pairs): """ Test the method to create an AssetPair object from a given dictionary """ assert AssetPair.from_dictionary({ "first": { "amount": 2, "type": "BTC", }, "second": { "amount": 2, "type": "MB" } }) == asset_pairs[0]
def from_tx_init_block(cls, tx_init_block): """ Create a transaction from an incoming tx_init block. :param tx_init_block: The tx_init block containing the transaction information :return: The created transaction :rtype: Transaction """ tx_dict = tx_init_block.transaction["tx"] order_id = OrderId(TraderId(unhexlify(tx_dict["partner_trader_id"])), OrderNumber(tx_dict["partner_order_number"])) partner_order_id = OrderId(TraderId(unhexlify(tx_dict["trader_id"])), OrderNumber(tx_dict["order_number"])) return cls(TransactionId(tx_init_block.hash), AssetPair.from_dictionary(tx_dict["assets"]), order_id, partner_order_id, Timestamp.now())
def test_from_dictionary(self): """ Test the method to create an AssetPair object from a given dictionary """ self.assertEqual( AssetPair.from_dictionary({ "first": { "amount": 2, "type": "BTC", }, "second": { "amount": 2, "type": "MB" } }), self.assetpair1)
def from_block(cls, block): """ Restore a bid from a TrustChain block :param data: TrustChainBlock :return: Restored bid :rtype: Bid """ tx_dict = block.transaction["tick"] return cls(OrderId(TraderId(unhexlify(tx_dict["trader_id"])), OrderNumber(tx_dict["order_number"])), AssetPair.from_dictionary(tx_dict["assets"]), Timeout(tx_dict["timeout"]), Timestamp(tx_dict["timestamp"]), traded=tx_dict["traded"], block_hash=block.hash)