store.py

   1 import time
   2 import requests
   3 import portfolio
   4 import simplejson as json
   5 from decimal import Decimal as D, ROUND_DOWN
   6 from datetime import date, datetime, timedelta
   7 import inspect
   8 from json import JSONDecodeError
   9 from simplejson.errors import JSONDecodeError as SimpleJSONDecodeError
  10
  11 __all__ = ["Portfolio", "BalanceStore", "ReportStore", "TradeStore"]
  12
  13 class ReportStore:
  14     def __init__(self, market, verbose_print=True):
  15         self.market = market
  16         self.verbose_print = verbose_print
  17
  18         self.print_logs = []
  19         self.logs = []
  20
  21     def merge(self, other_report):
  22         self.logs += other_report.logs
  23         self.logs.sort(key=lambda x: x["date"])
  24
  25         self.print_logs += other_report.print_logs
  26         self.print_logs.sort(key=lambda x: x[0])
  27
  28     def print_log(self, message):
  29         now = datetime.now()
  30         message = "{:%Y-%m-%d %H:%M:%S}: {}".format(now, str(message))
  31         self.print_logs.append([now, message])
  32         if self.verbose_print:
  33             print(message)
  34
  35     def add_log(self, hash_):
  36         hash_["date"] = datetime.now()
  37         self.logs.append(hash_)
  38
  39     @staticmethod
  40     def default_json_serial(obj):
  41         if isinstance(obj, (datetime, date)):
  42             return obj.isoformat()
  43         return str(obj)
  44
  45     def to_json(self):
  46         return json.dumps(self.logs, default=self.default_json_serial, indent="  ")
  47
  48     def to_json_array(self):
  49         for log in (x.copy() for x in self.logs):
  50             yield (
  51                     log.pop("date"),
  52                     log.pop("type"),
  53                     json.dumps(log, default=self.default_json_serial, indent="  ")
  54                     )
  55
  56     def set_verbose(self, verbose_print):
  57         self.verbose_print = verbose_print
  58
  59     def log_stage(self, stage, **kwargs):
  60         def as_json(element):
  61             if callable(element):
  62                 return inspect.getsource(element).strip()
  63             elif hasattr(element, "as_json"):
  64                 return element.as_json()
  65             else:
  66                 return element
  67
  68         args = { k: as_json(v) for k, v in kwargs.items() }
  69         args_str = ["{}={}".format(k, v) for k, v in args.items()]
  70         self.print_log("-" * (len(stage) + 8))
  71         self.print_log("[Stage] {} {}".format(stage, ", ".join(args_str)))
  72
  73         self.add_log({
  74             "type": "stage",
  75             "stage": stage,
  76             "args": args,
  77             })
  78
  79     def log_balances(self, tag=None):
  80         self.print_log("[Balance]")
  81         for currency, balance in self.market.balances.all.items():
  82             self.print_log("\t{}".format(balance))
  83
  84         self.add_log({
  85             "type": "balance",
  86             "tag": tag,
  87             "balances": self.market.balances.as_json()
  88             })
  89
  90     def log_tickers(self, amounts, other_currency,
  91             compute_value, type):
  92         values = {}
  93         rates = {}
  94         if callable(compute_value):
  95             compute_value = inspect.getsource(compute_value).strip()
  96
  97         for currency, amount in amounts.items():
  98             values[currency] = amount.as_json()["value"]
  99             rates[currency] = amount.rate
 100         self.add_log({
 101             "type": "tickers",
 102             "compute_value": compute_value,
 103             "balance_type": type,
 104             "currency": other_currency,
 105             "balances": values,
 106             "rates": rates,
 107             "total": sum(amounts.values()).as_json()["value"]
 108             })
 109
 110     def log_dispatch(self, amount, amounts, liquidity, repartition):
 111         self.add_log({
 112             "type": "dispatch",
 113             "liquidity": liquidity,
 114             "repartition_ratio": repartition,
 115             "total_amount": amount.as_json(),
 116             "repartition": { k: v.as_json()["value"] for k, v in amounts.items() }
 117             })
 118
 119     def log_trades(self, matching_and_trades, only):
 120         trades = []
 121         for matching, trade in matching_and_trades:
 122             trade_json = trade.as_json()
 123             trade_json["skipped"] = not matching
 124             trades.append(trade_json)
 125
 126         self.add_log({
 127             "type": "trades",
 128             "only": only,
 129             "debug": self.market.debug,
 130             "trades": trades
 131             })
 132
 133     def log_orders(self, orders, tick=None, only=None, compute_value=None):
 134         if callable(compute_value):
 135             compute_value = inspect.getsource(compute_value).strip()
 136         self.print_log("[Orders]")
 137         self.market.trades.print_all_with_order(ind="\t")
 138         self.add_log({
 139             "type": "orders",
 140             "only": only,
 141             "compute_value": compute_value,
 142             "tick": tick,
 143             "orders": [order.as_json() for order in orders if order is not None]
 144             })
 145
 146     def log_order(self, order, tick, finished=False, update=None,
 147             new_order=None, compute_value=None):
 148         if callable(compute_value):
 149             compute_value = inspect.getsource(compute_value).strip()
 150         if finished:
 151             self.print_log("[Order] Finished {}".format(order))
 152         elif update == "waiting":
 153             self.print_log("[Order] {}, tick {}, waiting".format(order, tick))
 154         elif update == "adjusting":
 155             self.print_log("[Order] {}, tick {}, cancelling and adjusting to {}".format(order, tick, new_order))
 156         elif update == "market_fallback":
 157             self.print_log("[Order] {}, tick {}, fallbacking to market value".format(order, tick))
 158         elif update == "market_adjust":
 159             self.print_log("[Order] {}, tick {}, market value, cancelling and adjusting to {}".format(order, tick, new_order))
 160
 161         self.add_log({
 162             "type": "order",
 163             "tick": tick,
 164             "update": update,
 165             "order": order.as_json(),
 166             "compute_value": compute_value,
 167             "new_order": new_order.as_json() if new_order is not None else None
 168             })
 169
 170     def log_move_balances(self, needed, moving):
 171         self.add_log({
 172             "type": "move_balances",
 173             "debug": self.market.debug,
 174             "needed": { k: v.as_json()["value"] if isinstance(v, portfolio.Amount) else v for k, v in needed.items() },
 175             "moving": { k: v.as_json()["value"] if isinstance(v, portfolio.Amount) else v for k, v in moving.items() },
 176             })
 177
 178     def log_http_request(self, method, url, body, headers, response):
 179         if isinstance(response, Exception):
 180             self.add_log({
 181                 "type": "http_request",
 182                 "method": method,
 183                 "url": url,
 184                 "body": body,
 185                 "headers": headers,
 186                 "status": -1,
 187                 "response": None,
 188                 "error": response.__class__.__name__,
 189                 "error_message": str(response),
 190                 })
 191         else:
 192             self.add_log({
 193                 "type": "http_request",
 194                 "method": method,
 195                 "url": url,
 196                 "body": body,
 197                 "headers": headers,
 198                 "status": response.status_code,
 199                 "response": response.text
 200                 })
 201
 202     def log_error(self, action, message=None, exception=None):
 203         self.print_log("[Error] {}".format(action))
 204         if exception is not None:
 205             self.print_log(str("\t{}: {}".format(exception.__class__.__name__, exception)))
 206         if message is not None:
 207             self.print_log("\t{}".format(message))
 208
 209         self.add_log({
 210             "type": "error",
 211             "action": action,
 212             "exception_class": exception.__class__.__name__ if exception is not None else None,
 213             "exception_message": str(exception) if exception is not None else None,
 214             "message": message,
 215             })
 216
 217     def log_debug_action(self, action):
 218         self.print_log("[Debug] {}".format(action))
 219
 220         self.add_log({
 221             "type": "debug_action",
 222             "action": action,
 223             })
 224
 225     def log_market(self, args, user_id, market_id):
 226         self.add_log({
 227             "type": "market",
 228             "commit": "$Format:%H$",
 229             "args": vars(args),
 230             "user_id": user_id,
 231             "market_id": market_id,
 232             })
 233
 234 class BalanceStore:
 235     def __init__(self, market):
 236         self.market = market
 237         self.all = {}
 238
 239     def currencies(self):
 240         return self.all.keys()
 241
 242     def in_currency(self, other_currency, compute_value="average", type="total"):
 243         amounts = {}
 244         for currency, balance in self.all.items():
 245             other_currency_amount = getattr(balance, type)\
 246                     .in_currency(other_currency, self.market, compute_value=compute_value)
 247             amounts[currency] = other_currency_amount
 248         self.market.report.log_tickers(amounts, other_currency,
 249                 compute_value, type)
 250         return amounts
 251
 252     def fetch_balances(self, tag=None):
 253         all_balances = self.market.ccxt.fetch_all_balances()
 254         for currency, balance in all_balances.items():
 255             if balance["exchange_total"] != 0 or balance["margin_total"] != 0 or \
 256                     currency in self.all:
 257                 self.all[currency] = portfolio.Balance(currency, balance)
 258         self.market.report.log_balances(tag=tag)
 259
 260     def dispatch_assets(self, amount, liquidity="medium", repartition=None):
 261         if repartition is None:
 262             repartition = Portfolio.repartition(liquidity=liquidity)
 263         sum_ratio = sum([v[0] for k, v in repartition.items()])
 264         amounts = {}
 265         for currency, (ptt, trade_type) in repartition.items():
 266             amounts[currency] = ptt * amount / sum_ratio
 267             if trade_type == "short":
 268                 amounts[currency] = - amounts[currency]
 269             self.all.setdefault(currency, portfolio.Balance(currency, {}))
 270         self.market.report.log_dispatch(amount, amounts, liquidity, repartition)
 271         return amounts
 272
 273     def as_json(self):
 274         return { k: v.as_json() for k, v in self.all.items() }
 275
 276 class TradeStore:
 277     def __init__(self, market):
 278         self.market = market
 279         self.all = []
 280
 281     @property
 282     def pending(self):
 283         return list(filter(lambda t: t.pending, self.all))
 284
 285     def compute_trades(self, values_in_base, new_repartition, only=None):
 286         computed_trades = []
 287         base_currency = sum(values_in_base.values()).currency
 288         for currency in self.market.balances.currencies():
 289             if currency == base_currency:
 290                 continue
 291             value_from = values_in_base.get(currency, portfolio.Amount(base_currency, 0))
 292             value_to = new_repartition.get(currency, portfolio.Amount(base_currency, 0))
 293
 294             if value_from.value * value_to.value < 0:
 295                 computed_trades.append(self.trade_if_matching(
 296                         value_from, portfolio.Amount(base_currency, 0),
 297                         currency, only=only))
 298                 computed_trades.append(self.trade_if_matching(
 299                         portfolio.Amount(base_currency, 0), value_to,
 300                         currency, only=only))
 301             else:
 302                 computed_trades.append(self.trade_if_matching(
 303                         value_from, value_to,
 304                         currency, only=only))
 305         for matching, trade in computed_trades:
 306             if matching:
 307                 self.all.append(trade)
 308         self.market.report.log_trades(computed_trades, only)
 309
 310     def trade_if_matching(self, value_from, value_to, currency,
 311             only=None):
 312         trade = portfolio.Trade(value_from, value_to, currency,
 313                 self.market)
 314         matching = only is None or trade.action == only
 315         return [matching, trade]
 316
 317     def prepare_orders(self, only=None, compute_value="default"):
 318         orders = []
 319         for trade in self.pending:
 320             if only is None or trade.action == only:
 321                 orders.append(trade.prepare_order(compute_value=compute_value))
 322         self.market.report.log_orders(orders, only, compute_value)
 323
 324     def close_trades(self):
 325         for trade in self.all:
 326             trade.close()
 327
 328     def print_all_with_order(self, ind=""):
 329         for trade in self.all:
 330             trade.print_with_order(ind=ind)
 331
 332     def run_orders(self):
 333         orders = self.all_orders(state="pending")
 334         for order in orders:
 335             order.run()
 336         self.market.report.log_stage("run_orders")
 337         self.market.report.log_orders(orders)
 338
 339     def all_orders(self, state=None):
 340         all_orders = sum(map(lambda v: v.orders, self.all), [])
 341         if state is None:
 342             return all_orders
 343         else:
 344             return list(filter(lambda o: o.status == state, all_orders))
 345
 346     def update_all_orders_status(self):
 347         for order in self.all_orders(state="open"):
 348             order.get_status()
 349
 350 class NoopLock:
 351     def __enter__(self, *args):
 352         pass
 353     def __exit__(self, *args):
 354         pass
 355
 356 class LockedVar:
 357     def __init__(self, value):
 358         self.lock = NoopLock()
 359         self.val = value
 360
 361     def start_lock(self):
 362         import threading
 363         self.lock = threading.Lock()
 364
 365     def set(self, value):
 366         with self.lock:
 367             self.val = value
 368
 369     def get(self, key=None):
 370         with self.lock:
 371             if key is not None and isinstance(self.val, dict):
 372                 return self.val.get(key)
 373             else:
 374                 return self.val
 375
 376     def __getattr__(self, key):
 377         with self.lock:
 378             return getattr(self.val, key)
 379
 380 class Portfolio:
 381     URL = "https://cryptoportfolio.io/wp-content/uploads/portfolio/json/cryptoportfolio.json"
 382     data = LockedVar(None)
 383     liquidities = LockedVar({})
 384     last_date = LockedVar(None)
 385     report = LockedVar(ReportStore(None))
 386     worker = None
 387     worker_started = False
 388     worker_notify = None
 389     callback = None
 390
 391     @classmethod
 392     def start_worker(cls, poll=30):
 393         import threading
 394
 395         cls.worker = threading.Thread(name="portfolio", daemon=True,
 396                 target=cls.wait_for_notification, kwargs={"poll": poll})
 397         cls.worker_notify = threading.Event()
 398         cls.callback = threading.Event()
 399
 400         cls.last_date.start_lock()
 401         cls.liquidities.start_lock()
 402         cls.report.start_lock()
 403
 404         cls.worker_started = True
 405         cls.worker.start()
 406
 407     @classmethod
 408     def is_worker_thread(cls):
 409         if cls.worker is None:
 410             return False
 411         else:
 412             import threading
 413             return cls.worker == threading.current_thread()
 414
 415     @classmethod
 416     def wait_for_notification(cls, poll=30):
 417         if not cls.is_worker_thread():
 418             raise RuntimeError("This method needs to be ran with the worker")
 419         while cls.worker_started:
 420             cls.worker_notify.wait()
 421             cls.worker_notify.clear()
 422             cls.report.print_log("Fetching cryptoportfolio")
 423             cls.get_cryptoportfolio(refetch=True)
 424             cls.callback.set()
 425             time.sleep(poll)
 426
 427     @classmethod
 428     def notify_and_wait(cls):
 429         cls.callback.clear()
 430         cls.worker_notify.set()
 431         cls.callback.wait()
 432
 433     @classmethod
 434     def wait_for_recent(cls, delta=4, poll=30):
 435         cls.get_cryptoportfolio()
 436         while cls.last_date.get() is None or datetime.now() - cls.last_date.get() > timedelta(delta):
 437             if cls.worker is None:
 438                 time.sleep(poll)
 439                 cls.report.print_log("Attempt to fetch up-to-date cryptoportfolio")
 440             cls.get_cryptoportfolio(refetch=True)
 441
 442     @classmethod
 443     def repartition(cls, liquidity="medium"):
 444         cls.get_cryptoportfolio()
 445         liquidities = cls.liquidities.get(liquidity)
 446         return liquidities[cls.last_date.get()]
 447
 448     @classmethod
 449     def get_cryptoportfolio(cls, refetch=False):
 450         if cls.data.get() is not None and not refetch:
 451             return
 452         if cls.worker is not None and not cls.is_worker_thread():
 453             cls.notify_and_wait()
 454             return
 455         try:
 456             r = requests.get(cls.URL)
 457             cls.report.log_http_request(r.request.method,
 458                     r.request.url, r.request.body, r.request.headers, r)
 459         except Exception as e:
 460             cls.report.log_error("get_cryptoportfolio", exception=e)
 461             return
 462         try:
 463             cls.data.set(r.json(parse_int=D, parse_float=D))
 464             cls.parse_cryptoportfolio()
 465         except (JSONDecodeError, SimpleJSONDecodeError):
 466             cls.data.set(None)
 467             cls.last_date.set(None)
 468             cls.liquidities.set({})
 469
 470     @classmethod
 471     def parse_cryptoportfolio(cls):
 472         def filter_weights(weight_hash):
 473             if weight_hash[1][0] == 0:
 474                 return False
 475             if weight_hash[0] == "_row":
 476                 return False
 477             return True
 478
 479         def clean_weights(i):
 480             def clean_weights_(h):
 481                 if h[0].endswith("s"):
 482                     return [h[0][0:-1], (h[1][i], "short")]
 483                 else:
 484                     return [h[0], (h[1][i], "long")]
 485             return clean_weights_
 486
 487         def parse_weights(portfolio_hash):
 488             if "weights" not in portfolio_hash:
 489                 return {}
 490             weights_hash = portfolio_hash["weights"]
 491             weights = {}
 492             for i in range(len(weights_hash["_row"])):
 493                 date = datetime.strptime(weights_hash["_row"][i], "%Y-%m-%d")
 494                 weights[date] = dict(filter(
 495                         filter_weights,
 496                         map(clean_weights(i), weights_hash.items())))
 497             return weights
 498
 499         high_liquidity = parse_weights(cls.data.get("portfolio_1"))
 500         medium_liquidity = parse_weights(cls.data.get("portfolio_2"))
 501
 502         cls.liquidities.set({
 503             "medium": medium_liquidity,
 504             "high":   high_liquidity,
 505             })
 506         cls.last_date.set(max(
 507             max(medium_liquidity.keys(), default=datetime(1, 1, 1)),
 508             max(high_liquidity.keys(), default=datetime(1, 1, 1))
 509             ))
 510
 511