feat(payments): add Pydantic models

aisbf/payments/__init__.py

@@ -2,5 +2,15 @@
 Payment system module
 """
 from aisbf.payments.migrations import PaymentMigrations
+from aisbf.payments.models import (
+    CryptoAddress,
+    CryptoWallet,
+    AddCryptoPaymentMethodRequest
+)
 
-__all__ = ['PaymentMigrations']
+__all__ = [
+    'PaymentMigrations',
+    'CryptoAddress',
+    'CryptoWallet',
+    'AddCryptoPaymentMethodRequest'
+]

aisbf/payments/models.py

+"""
+Pydantic models for payment system
+"""
+from pydantic import BaseModel
+from typing import Optional
+from datetime import datetime
+from decimal import Decimal
+
+
+class CryptoAddress(BaseModel):
+    """Crypto address model"""
+    crypto_type: str
+    address: str
+    derivation_path: str
+    derivation_index: int
+
+
+class CryptoWallet(BaseModel):
+    """Crypto wallet balance model"""
+    crypto_type: str
+    balance_crypto: Decimal
+    balance_fiat: Decimal
+    last_sync_at: Optional[datetime] = None
+
+
+class AddCryptoPaymentMethodRequest(BaseModel):
+    """Request to add crypto payment method"""
+    crypto_type: str