mirror of
https://github.com/RoboSats/robosats.git
synced 2024-09-11 14:05:51 +03:00
765 lines
29 KiB
Python
765 lines
29 KiB
Python
from django.db import models
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from django.contrib.auth.models import User
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from django.core.validators import (
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MaxValueValidator,
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MinValueValidator,
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validate_comma_separated_integer_list,
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)
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from django.utils import timezone
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from django.db.models.signals import post_save, pre_delete
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from django.template.defaultfilters import truncatechars
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from django.dispatch import receiver
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from django.utils.html import mark_safe
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import uuid
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from django.conf import settings
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from decouple import config
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from pathlib import Path
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import json
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from control.models import BalanceLog
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MIN_TRADE = int(config("MIN_TRADE"))
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MAX_TRADE = int(config("MAX_TRADE"))
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MIN_SWAP_AMOUNT = int(config("MIN_SWAP_AMOUNT"))
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FEE = float(config("FEE"))
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DEFAULT_BOND_SIZE = float(config("DEFAULT_BOND_SIZE"))
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class Currency(models.Model):
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currency_dict = json.load(open("frontend/static/assets/currencies.json"))
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currency_choices = [(int(val), label)
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for val, label in list(currency_dict.items())]
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currency = models.PositiveSmallIntegerField(choices=currency_choices,
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null=False,
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unique=True)
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exchange_rate = models.DecimalField(
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max_digits=14,
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decimal_places=4,
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default=None,
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null=True,
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validators=[MinValueValidator(0)],
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)
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timestamp = models.DateTimeField(default=timezone.now)
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def __str__(self):
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# returns currency label ( 3 letters code)
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return self.currency_dict[str(self.currency)]
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class Meta:
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verbose_name = "Cached market currency"
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verbose_name_plural = "Currencies"
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class LNPayment(models.Model):
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class Types(models.IntegerChoices):
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NORM = 0, "Regular invoice"
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HOLD = 1, "hold invoice"
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class Concepts(models.IntegerChoices):
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MAKEBOND = 0, "Maker bond"
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TAKEBOND = 1, "Taker bond"
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TRESCROW = 2, "Trade escrow"
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PAYBUYER = 3, "Payment to buyer"
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WITHREWA = 4, "Withdraw rewards"
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class Status(models.IntegerChoices):
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INVGEN = 0, "Generated"
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LOCKED = 1, "Locked"
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SETLED = 2, "Settled"
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RETNED = 3, "Returned"
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CANCEL = 4, "Cancelled"
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EXPIRE = 5, "Expired"
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VALIDI = 6, "Valid"
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FLIGHT = 7, "In flight"
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SUCCED = 8, "Succeeded"
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FAILRO = 9, "Routing failed"
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class FailureReason(models.IntegerChoices):
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NOTYETF = 0, "Payment isn't failed (yet)"
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TIMEOUT = 1, "There are more routes to try, but the payment timeout was exceeded."
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NOROUTE = 2, "All possible routes were tried and failed permanently. Or there were no routes to the destination at all."
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NONRECO = 3, "A non-recoverable error has occurred."
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INCORRE = 4, "Payment details are incorrect (unknown hash, invalid amount or invalid final CLTV delta)."
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NOBALAN = 5, "Insufficient unlocked balance in RoboSats' node."
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# payment use details
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type = models.PositiveSmallIntegerField(choices=Types.choices,
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null=False,
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default=Types.HOLD)
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concept = models.PositiveSmallIntegerField(choices=Concepts.choices,
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null=False,
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default=Concepts.MAKEBOND)
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status = models.PositiveSmallIntegerField(choices=Status.choices,
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null=False,
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default=Status.INVGEN)
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failure_reason = models.PositiveSmallIntegerField(choices=FailureReason.choices,
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null=True,
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default=None)
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# payment info
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payment_hash = models.CharField(max_length=100,
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unique=True,
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default=None,
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blank=True,
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primary_key=True)
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invoice = models.CharField(
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max_length=1200, unique=True, null=True, default=None,
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blank=True) # Some invoices with lots of routing hints might be long
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preimage = models.CharField(max_length=64,
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unique=True,
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null=True,
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default=None,
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blank=True)
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description = models.CharField(max_length=500,
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unique=False,
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null=True,
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default=None,
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blank=True)
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num_satoshis = models.PositiveBigIntegerField(validators=[
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MinValueValidator(100),
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MaxValueValidator(1.5 * MAX_TRADE),
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])
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# Fee in sats with mSats decimals fee_msat
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fee = models.DecimalField(max_digits=10, decimal_places=3, default=0, null=False, blank=False)
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created_at = models.DateTimeField()
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expires_at = models.DateTimeField()
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cltv_expiry = models.PositiveSmallIntegerField(null=True,
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default=None,
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blank=True)
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expiry_height = models.PositiveBigIntegerField(null=True,
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default=None,
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blank=True)
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# routing
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routing_attempts = models.PositiveSmallIntegerField(null=False, default=0)
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last_routing_time = models.DateTimeField(null=True,
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default=None,
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blank=True)
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in_flight = models.BooleanField(default=False, null=False, blank=False)
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# involved parties
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sender = models.ForeignKey(User,
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related_name="sender",
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on_delete=models.SET_NULL,
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null=True,
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default=None)
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receiver = models.ForeignKey(User,
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related_name="receiver",
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on_delete=models.SET_NULL,
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null=True,
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default=None)
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def __str__(self):
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return f"LN-{str(self.payment_hash)[:8]}: {self.Concepts(self.concept).label} - {self.Status(self.status).label}"
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class Meta:
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verbose_name = "Lightning payment"
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verbose_name_plural = "Lightning payments"
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@property
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def hash(self):
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# Payment hash is the primary key of LNpayments
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# However it is too long for the admin panel.
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# We created a truncated property for display 'hash'
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return truncatechars(self.payment_hash, 10)
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class OnchainPayment(models.Model):
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class Concepts(models.IntegerChoices):
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PAYBUYER = 3, "Payment to buyer"
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class Status(models.IntegerChoices):
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CREAT = 0, "Created" # User was given platform fees and suggested mining fees
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VALID = 1, "Valid" # Valid onchain address submitted
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MEMPO = 2, "In mempool" # Tx is sent to mempool
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CONFI = 3, "Confirmed" # Tx is confirme +2 blocks
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CANCE = 4, "Cancelled" # Cancelled tx
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def get_balance():
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balance = BalanceLog.objects.create()
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return balance.time
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# payment use details
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concept = models.PositiveSmallIntegerField(choices=Concepts.choices,
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null=False,
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default=Concepts.PAYBUYER)
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status = models.PositiveSmallIntegerField(choices=Status.choices,
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null=False,
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default=Status.CREAT)
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# payment info
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address = models.CharField(max_length=100,
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unique=False,
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default=None,
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null=True,
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blank=True)
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txid = models.CharField(max_length=64,
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unique=True,
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null=True,
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default=None,
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blank=True)
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num_satoshis = models.PositiveBigIntegerField(null=True,
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validators=[
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MinValueValidator(0.5 * MIN_SWAP_AMOUNT),
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MaxValueValidator(1.5 * MAX_TRADE),
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])
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sent_satoshis = models.PositiveBigIntegerField(null=True,
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validators=[
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MinValueValidator(0.5 * MIN_SWAP_AMOUNT),
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MaxValueValidator(1.5 * MAX_TRADE),
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])
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# fee in sats/vbyte with mSats decimals fee_msat
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suggested_mining_fee_rate = models.DecimalField(max_digits=6,
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decimal_places=3,
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default=1.05,
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null=False,
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blank=False)
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mining_fee_rate = models.DecimalField(max_digits=6,
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decimal_places=3,
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default=1.05,
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null=False,
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blank=False)
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mining_fee_sats = models.PositiveBigIntegerField(default=0,
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null=False,
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blank=False)
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# platform onchain/channels balance at creation, swap fee rate as percent of total volume
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balance = models.ForeignKey(BalanceLog,
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related_name="balance",
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on_delete=models.SET_NULL,
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null=True,
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default=get_balance)
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swap_fee_rate = models.DecimalField(max_digits=4,
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decimal_places=2,
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default=float(config("MIN_SWAP_FEE"))*100,
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null=False,
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blank=False)
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created_at = models.DateTimeField(default=timezone.now)
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# involved parties
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receiver = models.ForeignKey(User,
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related_name="tx_receiver",
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on_delete=models.SET_NULL,
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null=True,
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default=None)
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def __str__(self):
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return f"TX-{str(self.id)}: {self.Concepts(self.concept).label} - {self.Status(self.status).label}"
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class Meta:
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verbose_name = "Onchain payment"
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verbose_name_plural = "Onchain payments"
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@property
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def hash(self):
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# Display txid as 'hash' truncated
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return truncatechars(self.txid, 10)
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class Order(models.Model):
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class Types(models.IntegerChoices):
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BUY = 0, "BUY"
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SELL = 1, "SELL"
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class Status(models.IntegerChoices):
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WFB = 0, "Waiting for maker bond"
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PUB = 1, "Public"
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PAU = 2, "Paused"
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TAK = 3, "Waiting for taker bond"
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UCA = 4, "Cancelled"
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EXP = 5, "Expired"
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WF2 = 6, "Waiting for trade collateral and buyer invoice"
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WFE = 7, "Waiting only for seller trade collateral"
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WFI = 8, "Waiting only for buyer invoice"
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CHA = 9, "Sending fiat - In chatroom"
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FSE = 10, "Fiat sent - In chatroom"
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DIS = 11, "In dispute"
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CCA = 12, "Collaboratively cancelled"
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PAY = 13, "Sending satoshis to buyer"
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SUC = 14, "Sucessful trade"
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FAI = 15, "Failed lightning network routing"
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WFR = 16, "Wait for dispute resolution"
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MLD = 17, "Maker lost dispute"
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TLD = 18, "Taker lost dispute"
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class ExpiryReasons(models.IntegerChoices):
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NTAKEN = 0, "Expired not taken"
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NMBOND = 1, "Maker bond not locked"
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NESCRO = 2, "Escrow not locked"
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NINVOI = 3, "Invoice not submitted"
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NESINV = 4, "Neither escrow locked or invoice submitted"
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# order info
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status = models.PositiveSmallIntegerField(choices=Status.choices,
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null=False,
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default=Status.WFB)
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created_at = models.DateTimeField(default=timezone.now)
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expires_at = models.DateTimeField()
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expiry_reason = models.PositiveSmallIntegerField(choices=ExpiryReasons.choices,
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null=True,
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blank=True,
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default=None)
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# order details
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type = models.PositiveSmallIntegerField(choices=Types.choices, null=False)
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currency = models.ForeignKey(Currency,
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null=True,
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on_delete=models.SET_NULL)
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amount = models.DecimalField(max_digits=18, decimal_places=8, null=True, blank=True)
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has_range = models.BooleanField(default=False, null=False, blank=False)
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min_amount = models.DecimalField(max_digits=18, decimal_places=8, null=True, blank=True)
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max_amount = models.DecimalField(max_digits=18, decimal_places=8, null=True, blank=True)
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payment_method = models.CharField(max_length=70,
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null=False,
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default="not specified",
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blank=True)
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bondless_taker = models.BooleanField(default=False, null=False, blank=False)
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# order pricing method. A explicit amount of sats, or a relative premium above/below market.
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is_explicit = models.BooleanField(default=False, null=False)
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# marked to market
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premium = models.DecimalField(
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max_digits=5,
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decimal_places=2,
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default=0,
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null=True,
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validators=[MinValueValidator(-100),
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MaxValueValidator(999)],
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blank=True,
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)
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# explicit
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satoshis = models.PositiveBigIntegerField(
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null=True,
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validators=[
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MinValueValidator(MIN_TRADE),
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MaxValueValidator(MAX_TRADE)
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],
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blank=True,
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)
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# optionally makers can choose the public order duration length (seconds)
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public_duration = models.PositiveBigIntegerField(
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default=60*60*int(config("DEFAULT_PUBLIC_ORDER_DURATION"))-1,
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null=False,
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validators=[
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MinValueValidator(60*60*float(config("MIN_PUBLIC_ORDER_DURATION"))), # Min is 10 minutes
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MaxValueValidator(60*60*float(config("MAX_PUBLIC_ORDER_DURATION"))), # Max is 24 Hours
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],
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blank=False,
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)
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# optionally makers can choose the escrow lock / invoice submission step length (seconds)
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escrow_duration = models.PositiveBigIntegerField(
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default=60 * int(config("INVOICE_AND_ESCROW_DURATION"))-1,
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null=False,
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validators=[
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MinValueValidator(60*30), # Min is 30 minutes
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MaxValueValidator(60*60*8), # Max is 8 Hours
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],
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blank=False,
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)
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# optionally makers can choose the fidelity bond size of the maker and taker (%)
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bond_size = models.DecimalField(
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max_digits=4,
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decimal_places=2,
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default=DEFAULT_BOND_SIZE,
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null=False,
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validators=[
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MinValueValidator(float(config("MIN_BOND_SIZE"))), # 1 %
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MaxValueValidator(float(config("MAX_BOND_SIZE"))), # 15 %
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],
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blank=False,
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)
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# how many sats at creation and at last check (relevant for marked to market)
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t0_satoshis = models.PositiveBigIntegerField(
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null=True,
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validators=[
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MinValueValidator(MIN_TRADE),
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MaxValueValidator(MAX_TRADE)
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],
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blank=True,
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) # sats at creation
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last_satoshis = models.PositiveBigIntegerField(
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null=True,
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validators=[MinValueValidator(0),
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MaxValueValidator(MAX_TRADE * 2)],
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blank=True,
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) # sats last time checked. Weird if 2* trade max...
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# timestamp of last_satoshis
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last_satoshis_time = models.DateTimeField(null=True, default=None, blank=True)
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# time the fiat exchange is confirmed and Sats released to buyer
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contract_finalization_time = models.DateTimeField(null=True, default=None, blank=True)
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# order participants
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maker = models.ForeignKey(
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User,
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related_name="maker",
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on_delete=models.SET_NULL,
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null=True,
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default=None) # unique = True, a maker can only make one order
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taker = models.ForeignKey(
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User,
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related_name="taker",
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on_delete=models.SET_NULL,
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null=True,
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default=None,
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blank=True,
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) # unique = True, a taker can only take one order
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maker_last_seen = models.DateTimeField(null=True, default=None, blank=True)
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taker_last_seen = models.DateTimeField(null=True, default=None, blank=True)
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# When collaborative cancel is needed and one partner has cancelled.
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maker_asked_cancel = models.BooleanField(default=False, null=False)
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taker_asked_cancel = models.BooleanField(default=False, null=False)
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is_fiat_sent = models.BooleanField(default=False, null=False)
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# in dispute
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is_disputed = models.BooleanField(default=False, null=False)
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maker_statement = models.TextField(max_length=5000,
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null=True,
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default=None,
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blank=True)
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taker_statement = models.TextField(max_length=5000,
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null=True,
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default=None,
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blank=True)
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# LNpayments
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# Order collateral
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maker_bond = models.OneToOneField(
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LNPayment,
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related_name="order_made",
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on_delete=models.SET_NULL,
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null=True,
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default=None,
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blank=True,
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)
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taker_bond = models.OneToOneField(
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LNPayment,
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related_name="order_taken",
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on_delete=models.SET_NULL,
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null=True,
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default=None,
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blank=True,
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)
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trade_escrow = models.OneToOneField(
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LNPayment,
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related_name="order_escrow",
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on_delete=models.SET_NULL,
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null=True,
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default=None,
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blank=True,
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)
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# is buyer payout a LN invoice (false) or on chain address (true)
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is_swap = models.BooleanField(default=False, null=False)
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# buyer payment LN invoice
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payout = models.OneToOneField(
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LNPayment,
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related_name="order_paid_LN",
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on_delete=models.SET_NULL,
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null=True,
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default=None,
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blank=True,
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)
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# buyer payment address
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payout_tx = models.OneToOneField(
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OnchainPayment,
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related_name="order_paid_TX",
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on_delete=models.SET_NULL,
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null=True,
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default=None,
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blank=True,
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)
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# ratings
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maker_rated = models.BooleanField(default=False, null=False)
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taker_rated = models.BooleanField(default=False, null=False)
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maker_platform_rated = models.BooleanField(default=False, null=False)
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taker_platform_rated = models.BooleanField(default=False, null=False)
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def __str__(self):
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if self.has_range and self.amount == None:
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amt = str(float(self.min_amount))+"-"+ str(float(self.max_amount))
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else:
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amt = float(self.amount)
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return f"Order {self.id}: {self.Types(self.type).label} BTC for {amt} {self.currency}"
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def t_to_expire(self, status):
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t_to_expire = {
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0: int(config("EXP_MAKER_BOND_INVOICE")), # 'Waiting for maker bond'
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|
1: self.public_duration, # 'Public'
|
|
2: 0, # 'Deleted'
|
|
3: int(config("EXP_TAKER_BOND_INVOICE")), # 'Waiting for taker bond'
|
|
4: 0, # 'Cancelled'
|
|
5: 0, # 'Expired'
|
|
6: int(self.escrow_duration), # 'Waiting for trade collateral and buyer invoice'
|
|
7: 60 * int(config("INVOICE_AND_ESCROW_DURATION")), # 'Waiting only for seller trade collateral'
|
|
8: 60 * int(config("INVOICE_AND_ESCROW_DURATION")), # 'Waiting only for buyer invoice'
|
|
9: 60 * 60 * int(config("FIAT_EXCHANGE_DURATION")), # 'Sending fiat - In chatroom'
|
|
10: 60 * 60 * int(config("FIAT_EXCHANGE_DURATION")),# 'Fiat sent - In chatroom'
|
|
11: 1 * 24 * 60 * 60, # 'In dispute'
|
|
12: 0, # 'Collaboratively cancelled'
|
|
13: 100 * 24 * 60 * 60, # 'Sending satoshis to buyer'
|
|
14: 100 * 24 * 60 * 60, # 'Sucessful trade'
|
|
15: 100 * 24 * 60 * 60, # 'Failed lightning network routing'
|
|
16: 100 * 24 * 60 * 60, # 'Wait for dispute resolution'
|
|
17: 100 * 24 * 60 * 60, # 'Maker lost dispute'
|
|
18: 100 * 24 * 60 * 60, # 'Taker lost dispute'
|
|
}
|
|
|
|
return t_to_expire[status]
|
|
|
|
|
|
@receiver(pre_delete, sender=Order)
|
|
def delete_lnpayment_at_order_deletion(sender, instance, **kwargs):
|
|
to_delete = (
|
|
instance.maker_bond,
|
|
instance.payout,
|
|
instance.taker_bond,
|
|
instance.trade_escrow,
|
|
)
|
|
|
|
for lnpayment in to_delete:
|
|
try:
|
|
lnpayment.delete()
|
|
except:
|
|
pass
|
|
|
|
|
|
class Profile(models.Model):
|
|
user = models.OneToOneField(User, on_delete=models.CASCADE)
|
|
|
|
# PGP keys, used for E2E chat encryption. Priv key is encrypted with user's passphrase (highEntropyToken)
|
|
public_key = models.TextField(
|
|
# Actualy only 400-500 characters for ECC, but other types might be longer
|
|
max_length=2000,
|
|
null=True,
|
|
default=None,
|
|
blank=True,
|
|
)
|
|
encrypted_private_key = models.TextField(
|
|
max_length=2000,
|
|
null=True,
|
|
default=None,
|
|
blank=True,
|
|
)
|
|
|
|
# Total trades
|
|
total_contracts = models.PositiveIntegerField(null=False, default=0)
|
|
|
|
# Ratings stored as a comma separated integer list
|
|
total_ratings = models.PositiveIntegerField(null=False, default=0)
|
|
latest_ratings = models.CharField(
|
|
max_length=999,
|
|
null=True,
|
|
default=None,
|
|
validators=[validate_comma_separated_integer_list],
|
|
blank=True,
|
|
) # Will only store latest rating
|
|
avg_rating = models.DecimalField(
|
|
max_digits=4,
|
|
decimal_places=1,
|
|
default=None,
|
|
null=True,
|
|
validators=[MinValueValidator(0),
|
|
MaxValueValidator(100)],
|
|
blank=True,
|
|
)
|
|
# Used to deep link telegram chat in case telegram notifications are enabled
|
|
telegram_token = models.CharField(
|
|
max_length=20,
|
|
null=True,
|
|
blank=True
|
|
)
|
|
telegram_chat_id = models.BigIntegerField(
|
|
null=True,
|
|
default=None,
|
|
blank=True
|
|
)
|
|
telegram_enabled = models.BooleanField(
|
|
default=False,
|
|
null=False
|
|
)
|
|
telegram_lang_code = models.CharField(
|
|
max_length=10,
|
|
null=True,
|
|
blank=True
|
|
)
|
|
telegram_welcomed = models.BooleanField(
|
|
default=False,
|
|
null=False
|
|
)
|
|
|
|
# Referral program
|
|
is_referred = models.BooleanField(
|
|
default=False,
|
|
null=False
|
|
)
|
|
referred_by = models.ForeignKey(
|
|
'self',
|
|
related_name="referee",
|
|
on_delete=models.SET_NULL,
|
|
null=True,
|
|
default=None,
|
|
blank=True,
|
|
)
|
|
referral_code = models.CharField(
|
|
max_length=15,
|
|
null=True,
|
|
blank=True
|
|
)
|
|
# Recent rewards from referred trades that will be "earned" at a later point to difficult spionage.
|
|
pending_rewards = models.PositiveIntegerField(null=False, default=0)
|
|
# Claimable rewards
|
|
earned_rewards = models.PositiveIntegerField(null=False, default=0)
|
|
# Total claimed rewards
|
|
claimed_rewards = models.PositiveIntegerField(null=False, default=0)
|
|
|
|
# Disputes
|
|
num_disputes = models.PositiveIntegerField(null=False, default=0)
|
|
lost_disputes = models.PositiveIntegerField(null=False, default=0)
|
|
num_disputes_started = models.PositiveIntegerField(null=False, default=0)
|
|
orders_disputes_started = models.CharField(
|
|
max_length=999,
|
|
null=True,
|
|
default=None,
|
|
validators=[validate_comma_separated_integer_list],
|
|
blank=True,
|
|
) # Will only store ID of orders
|
|
|
|
# RoboHash
|
|
avatar = models.ImageField(
|
|
default=("static/assets/avatars/" + "unknown_avatar.png"),
|
|
verbose_name="Avatar",
|
|
blank=True,
|
|
)
|
|
|
|
# Penalty expiration (only used then taking/cancelling repeatedly orders in the book before comitting bond)
|
|
penalty_expiration = models.DateTimeField(null=True,
|
|
default=None,
|
|
blank=True)
|
|
|
|
# Platform rate
|
|
platform_rating = models.PositiveIntegerField(null=True,
|
|
default=None,
|
|
blank=True)
|
|
|
|
@receiver(post_save, sender=User)
|
|
def create_user_profile(sender, instance, created, **kwargs):
|
|
if created:
|
|
Profile.objects.create(user=instance)
|
|
|
|
@receiver(post_save, sender=User)
|
|
def save_user_profile(sender, instance, **kwargs):
|
|
instance.profile.save()
|
|
|
|
@receiver(pre_delete, sender=User)
|
|
def del_avatar_from_disk(sender, instance, **kwargs):
|
|
try:
|
|
avatar_file = Path(settings.AVATAR_ROOT +
|
|
instance.profile.avatar.url.split("/")[-1])
|
|
avatar_file.unlink()
|
|
except:
|
|
pass
|
|
|
|
def __str__(self):
|
|
return self.user.username
|
|
|
|
# to display avatars in admin panel
|
|
def get_avatar(self):
|
|
if not self.avatar:
|
|
return settings.STATIC_ROOT + "unknown_avatar.png"
|
|
return self.avatar.url
|
|
|
|
# method to create a fake table field in read only mode
|
|
def avatar_tag(self):
|
|
return mark_safe('<img src="%s" width="50" height="50" />' %
|
|
self.get_avatar())
|
|
|
|
|
|
class MarketTick(models.Model):
|
|
"""
|
|
Records tick by tick Non-KYC Bitcoin price.
|
|
Data to be aggregated and offered via public API.
|
|
|
|
It is checked against current CEX price for useful
|
|
insight on the historical premium of Non-KYC BTC
|
|
|
|
Price is set when taker bond is locked. Both
|
|
maker and taker are commited with bonds (contract
|
|
is finished and cancellation has a cost)
|
|
"""
|
|
|
|
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
|
|
price = models.DecimalField(
|
|
max_digits=16,
|
|
decimal_places=2,
|
|
default=None,
|
|
null=True,
|
|
validators=[MinValueValidator(0)],
|
|
)
|
|
volume = models.DecimalField(
|
|
max_digits=8,
|
|
decimal_places=8,
|
|
default=None,
|
|
null=True,
|
|
validators=[MinValueValidator(0)],
|
|
)
|
|
premium = models.DecimalField(
|
|
max_digits=5,
|
|
decimal_places=2,
|
|
default=None,
|
|
null=True,
|
|
validators=[MinValueValidator(-100),
|
|
MaxValueValidator(999)],
|
|
blank=True,
|
|
)
|
|
currency = models.ForeignKey(Currency,
|
|
null=True,
|
|
on_delete=models.SET_NULL)
|
|
timestamp = models.DateTimeField(default=timezone.now)
|
|
|
|
# Relevant to keep record of the historical fee, so the insight on the premium can be better analyzed
|
|
fee = models.DecimalField(
|
|
max_digits=4,
|
|
decimal_places=4,
|
|
default=FEE,
|
|
validators=[MinValueValidator(0),
|
|
MaxValueValidator(1)],
|
|
)
|
|
|
|
def log_a_tick(order):
|
|
"""
|
|
Creates a new tick
|
|
"""
|
|
|
|
if not order.taker_bond:
|
|
return None
|
|
|
|
elif order.taker_bond.status == LNPayment.Status.LOCKED:
|
|
volume = order.last_satoshis / 100000000
|
|
price = float(order.amount) / volume # Amount Fiat / Amount BTC
|
|
market_exchange_rate = float(order.currency.exchange_rate)
|
|
premium = 100 * (price / market_exchange_rate - 1)
|
|
|
|
tick = MarketTick.objects.create(price=price,
|
|
volume=volume,
|
|
premium=premium,
|
|
currency=order.currency)
|
|
|
|
tick.save()
|
|
|
|
def __str__(self):
|
|
return f"Tick: {str(self.id)[:8]}"
|
|
|
|
class Meta:
|
|
verbose_name = "Market tick"
|
|
verbose_name_plural = "Market ticks" |