feat(payments): implement blockchain monitoring (API mode)

aisbf/payments/crypto/__init__.py

@@ -3,5 +3,6 @@ Crypto payment module
 """
 from aisbf.payments.crypto.wallet import CryptoWalletManager
 from aisbf.payments.crypto.pricing import CryptoPriceService
+from aisbf.payments.crypto.monitor import BlockchainMonitor
 
-__all__ = ['CryptoWalletManager', 'CryptoPriceService']
+__all__ = ['CryptoWalletManager', 'CryptoPriceService', 'BlockchainMonitor']

tests/payments/test_monitor.py

+import pytest
+from datetime import datetime
+from aisbf.database import DatabaseManager
+from aisbf.payments.migrations import PaymentMigrations
+from aisbf.payments.crypto.monitor import BlockchainMonitor
+from aisbf.payments.crypto.pricing import CryptoPriceService
+
+
+@pytest.fixture
+def db_manager(tmp_path):
+    """Create test database"""
+    db_path = tmp_path / "test.db"
+    db_config = {
+        'type': 'sqlite',
+        'sqlite_path': str(db_path)
+    }
+    db = DatabaseManager(db_config)
+    migrations = PaymentMigrations(db)
+    migrations.run_migrations()
+    return db
+
+
+@pytest.mark.anyio
+async def test_process_transaction(db_manager):
+    """Test transaction processing"""
+    config = {'currency_code': 'USD', 'btc_confirmations': 3}
+    monitor = BlockchainMonitor(db_manager, config)
+    
+    # Create user and address
+    with db_manager._get_connection() as conn:
+        cursor = conn.cursor()
+        cursor.execute("""
+            INSERT INTO user_crypto_addresses 
+            (user_id, crypto_type, address, derivation_path, derivation_index)
+            VALUES (1, 'btc', 'bc1qtest', 'm/44/0/0/0/0', 0)
+        """)
+        cursor.execute("""
+            INSERT INTO user_crypto_wallets
+            (user_id, crypto_type, balance_crypto, balance_fiat)
+            VALUES (1, 'btc', 0, 0)
+        """)
+        conn.commit()
+    
+    # Process transaction
+    await monitor.process_transaction(
+        user_id=1,
+        crypto_type='btc',
+        tx_hash='test_tx_hash',
+        from_address='bc1qfrom',
+        to_address='bc1qtest',
+        amount=0.001,
+        confirmations=3
+    )
+    
+    # Check transaction was recorded
+    with db_manager._get_connection() as conn:
+        cursor = conn.cursor()
+        cursor.execute(
+            "SELECT * FROM crypto_transactions WHERE tx_hash = ?",
+            ('test_tx_hash',)
+        )
+        tx = cursor.fetchone()
+    
+    assert tx is not None
+    assert tx[9] == 'confirmed'  # status column
+    assert float(tx[5]) == 0.001  # amount_crypto column