import stripe from django.conf import settings from django.contrib.auth.models import AbstractUser from django.db import models from core.exchanges.alpaca import AlpacaExchange from core.exchanges.oanda import OANDAExchange from core.lib.customers import get_or_create, update_customer_fields from core.util import logs log = logs.get_logger(__name__) EXCHANGE_MAP = {"alpaca": AlpacaExchange, "oanda": OANDAExchange} class Plan(models.Model): name = models.CharField(max_length=255, unique=True) description = models.CharField(max_length=1024, null=True, blank=True) cost = models.IntegerField() product_id = models.CharField(max_length=255, unique=True, null=True, blank=True) image = models.CharField(max_length=1024, null=True, blank=True) def __str__(self): return f"{self.name} (£{self.cost})" class User(AbstractUser): # Stripe customer ID stripe_id = models.CharField(max_length=255, null=True, blank=True) last_payment = models.DateTimeField(null=True, blank=True) plans = models.ManyToManyField(Plan, blank=True) email = models.EmailField(unique=True) def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self._original = self def save(self, *args, **kwargs): """ Override the save function to create a Stripe customer. """ if settings.STRIPE_ENABLED: if not self.stripe_id: # stripe ID not stored self.stripe_id = get_or_create( self.email, self.first_name, self.last_name ) to_update = {} if self.email != self._original.email: to_update["email"] = self.email if self.first_name != self._original.first_name: to_update["first_name"] = self.first_name if self.last_name != self._original.last_name: to_update["last_name"] = self.last_name update_customer_fields(self.stripe_id, **to_update) super().save(*args, **kwargs) def delete(self, *args, **kwargs): if settings.STRIPE_ENABLED: if self.stripe_id: stripe.Customer.delete(self.stripe_id) log.info(f"Deleted Stripe customer {self.stripe_id}") super().delete(*args, **kwargs) def has_plan(self, plan): plan_list = [plan.name for plan in self.plans.all()] return plan in plan_list class Account(models.Model): EXCHANGE_CHOICES = ( ("alpaca", "Alpaca"), ("oanda", "OANDA") ) user = models.ForeignKey(User, on_delete=models.CASCADE) name = models.CharField(max_length=255) exchange = models.CharField(choices=EXCHANGE_CHOICES, max_length=255) api_key = models.CharField(max_length=255) api_secret = models.CharField(max_length=255) sandbox = models.BooleanField(default=False) supported_symbols = models.JSONField(default=list) instruments = models.JSONField(default=list) currency = models.CharField(max_length=255, null=True, blank=True) def __str__(self): name = f"{self.name} ({self.exchange})" if self.sandbox: name += " (sandbox)" return name def save(self, *args, **kwargs): """ Override the save function to update supported symbols. """ client = self.get_client() if client: response = client.get_instruments() supported_symbols = client.get_supported_assets(response) currency = client.get_account()["currency"] log.debug(f"Supported symbols for {self.name}: {supported_symbols}") self.supported_symbols = supported_symbols self.instruments = response self.currency = currency super().save(*args, **kwargs) def get_client(self): if self.exchange in EXCHANGE_MAP: return EXCHANGE_MAP[self.exchange](self) else: raise Exception(f"Exchange not supported : {self.exchange}") @property def client(self): """ Convenience property for one-off API calls. """ return self.get_client() @property def rawclient(self): """ Convenience property for one-off API calls. """ return self.get_client().client @classmethod def get_by_id(cls, account_id, user): return cls.objects.get(id=account_id, user=user) class Session(models.Model): user = models.ForeignKey(User, on_delete=models.CASCADE) request = models.CharField(max_length=255, null=True, blank=True) session = models.CharField(max_length=255, null=True, blank=True) subscription_id = models.CharField(max_length=255, null=True, blank=True) plan = models.ForeignKey(Plan, null=True, blank=True, on_delete=models.CASCADE) class Hook(models.Model): DIRECTION_CHOICES = ( ("buy", "Buy"), ("sell", "Sell"), ) user = models.ForeignKey(User, on_delete=models.CASCADE) name = models.CharField(max_length=1024, null=True, blank=True, unique=True) hook = models.CharField(max_length=255, unique=True) direction = models.CharField(choices=DIRECTION_CHOICES, max_length=255) received = models.IntegerField(default=0) def __str__(self): return f"{self.name} ({self.hook})" class Trade(models.Model): TYPE_CHOICES = ( ("market", "Market"), ("limit", "Limit"), ) DIRECTION_CHOICES = ( ("buy", "Buy"), ("sell", "Sell"), ) user = models.ForeignKey(User, on_delete=models.CASCADE) account = models.ForeignKey(Account, on_delete=models.CASCADE) hook = models.ForeignKey(Hook, on_delete=models.CASCADE, null=True, blank=True) symbol = models.CharField(max_length=255) type = models.CharField(choices=TYPE_CHOICES, max_length=255) amount = models.FloatField(null=True, blank=True) amount_usd = models.FloatField(null=True, blank=True) price = models.FloatField(null=True, blank=True) stop_loss = models.FloatField(null=True, blank=True) take_profit = models.FloatField(null=True, blank=True) status = models.CharField(max_length=255, null=True, blank=True) direction = models.CharField(choices=DIRECTION_CHOICES, max_length=255) # To populate from the trade order_id = models.CharField(max_length=255, null=True, blank=True) client_order_id = models.CharField(max_length=255, null=True, blank=True) response = models.JSONField(null=True, blank=True) def __init__(self, *args, **kwargs): super().__init__(*args, **kwargs) self._original = self def post(self): return self.account.client.post_trade(self) def delete(self, *args, **kwargs): # close the trade super().delete(*args, **kwargs) class Callback(models.Model): hook = models.ForeignKey(Hook, on_delete=models.CASCADE) title = models.CharField(max_length=1024, null=True, blank=True) message = models.CharField(max_length=1024, null=True, blank=True) period = models.CharField(max_length=255, null=True, blank=True) sent = models.BigIntegerField(null=True, blank=True) trade = models.BigIntegerField(null=True, blank=True) exchange = models.CharField(max_length=255, null=True, blank=True) base = models.CharField(max_length=255, null=True, blank=True) quote = models.CharField(max_length=255, null=True, blank=True) contract = models.CharField(max_length=255, null=True, blank=True) price = models.FloatField(null=True, blank=True) symbol = models.CharField(max_length=255) class Strategy(models.Model): user = models.ForeignKey(User, on_delete=models.CASCADE) name = models.CharField(max_length=255) description = models.TextField(null=True, blank=True) account = models.ForeignKey(Account, on_delete=models.CASCADE) hooks = models.ManyToManyField(Hook) enabled = models.BooleanField(default=False) take_profit_percent = models.FloatField(default=1.5) stop_loss_percent = models.FloatField(default=1.0) price_slippage_percent = models.FloatField(default=2.5) trade_size_percent = models.FloatField(default=0.5) def __str__(self): return self.name # class Perms(models.Model): # class Meta: # permissions = ( # ("bypass_hashing", "Can bypass field hashing"), # # ("bypass_blacklist", "Can bypass the blacklist"), # # ("bypass_encryption", "Can bypass field encryption"), # # ("bypass_obfuscation", "Can bypass field obfuscation"), # # ("bypass_delay", "Can bypass data delay"), # # ("bypass_randomisation", "Can bypass data randomisation"), # # ("post_irc", "Can post to IRC"), # ("post_discord", "Can post to Discord"), # ("query_search", "Can search with query strings"), # # ("use_insights", "Can use the Insights page"), # ("index_int", "Can use the internal index"), # ("index_meta", "Can use the meta index"), # ("restricted_sources", "Can access restricted sources"), # )