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74 lines
3.5 KiB
Python
74 lines
3.5 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 MaxValueValidator, MinValueValidator
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#############################
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# TODO
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# Load hparams from .env file
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min_satoshis_trade = 10*1000
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max_satoshis_trade = 500*1000
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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 Currencies(models.IntegerChoices):
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USD = 1, 'USD'
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EUR = 2, 'EUR'
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ETH = 3, 'ETH'
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class Status(models.TextChoices):
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WFB = 0, 'Waiting for bond'
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PUB = 1, 'Published in order book'
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DEL = 2, 'Deleted from order book'
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TAK = 3, 'Taken'
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UCA = 4, 'Unilaterally cancelled'
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RET = 5, 'Returned to order book' # Probably same as 1 in most cases.
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WF2 = 6, 'Waiting for trade collateral and buyer invoice'
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WTC = 7, 'Waiting only for trade collateral'
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WBI = 8, 'Waiting only for buyer invoice'
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EXF = 9, 'Exchanging fiat / In chat'
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CCA = 10, 'Collaboratively cancelled'
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FSE = 11, 'Fiat sent'
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FCO = 12, 'Fiat confirmed'
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SUC = 13, 'Sucessfully settled'
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FAI = 14, 'Failed lightning network routing'
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UPI = 15, 'Updated invoice'
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DIS = 16, 'In dispute'
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MLD = 17, 'Maker lost dispute'
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TLD = 18, 'Taker lost dispute'
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EXP = 19, 'Expired'
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# order info, id = models.CharField(max_length=64, unique=True, null=False)
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status = models.PositiveSmallIntegerField(choices=Status.choices, default=Status.WFB)
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created_at = models.DateTimeField(auto_now_add=True)
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# order details
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type = models.PositiveSmallIntegerField(choices=Types.choices, null=False)
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currency = models.PositiveSmallIntegerField(choices=Currencies.choices, null=False)
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amount = models.DecimalField(max_digits=9, decimal_places=4, validators=[MinValueValidator(0.00001)])
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payment_method = models.CharField(max_length=30, null=False, default="Not specified")
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premium = models.DecimalField(max_digits=5, decimal_places=2, default=0, null=True, validators=[MinValueValidator(-100), MaxValueValidator(999)])
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satoshis = models.PositiveBigIntegerField(null=True, validators=[MinValueValidator(min_satoshis_trade), MaxValueValidator(max_satoshis_trade)])
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is_explicit = models.BooleanField(default=False, null=False) # pricing method. A explicit amount of sats, or a relative premium above/below market.
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# order participants
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maker = models.ForeignKey(User, related_name='maker', on_delete=models.SET_NULL, null=True, default=None) # unique = True, a maker can only make one order
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taker = models.ForeignKey(User, related_name='taker', on_delete=models.SET_NULL, null=True, default=None) # unique = True, a taker can only take one order
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# order collateral
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has_maker_bond = models.BooleanField(default=False, null=False)
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has_taker_bond = models.BooleanField(default=False, null=False)
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has_trade_collat = models.BooleanField(default=False, null=False)
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maker_bond_secret = models.CharField(max_length=300, unique=False, null=True, default=None)
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taker_bond_secret = models.CharField(max_length=300, unique=False, null=True, default=None)
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trade_collat_secret = models.CharField(max_length=300, unique=False, null=True, default=None)
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# buyer payment LN invoice
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has_invoice = models.BooleanField(default=False, null=False) # has invoice and is valid
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invoice = models.CharField(max_length=300, unique=False, null=True, default=None)
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