feat: complete remaining phase 1 tasks - multi-chain wallet, atomic swaps, and multi-region deployment

This commit is contained in:
oib
2026-02-28 23:11:55 +01:00
parent 0e6c9eda72
commit bf95cd0d9b
26 changed files with 8091 additions and 6 deletions

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"""
Atomic Swap Service
Service for managing trustless cross-chain atomic swaps between agents.
"""
from __future__ import annotations
import logging
import secrets
import hashlib
from datetime import datetime, timedelta
from typing import List, Optional
from sqlmodel import Session, select
from fastapi import HTTPException
from ..domain.atomic_swap import AtomicSwapOrder, SwapStatus
from ..schemas.atomic_swap import SwapCreateRequest, SwapResponse, SwapActionRequest, SwapCompleteRequest
from ..blockchain.contract_interactions import ContractInteractionService
logger = logging.getLogger(__name__)
class AtomicSwapService:
def __init__(
self,
session: Session,
contract_service: ContractInteractionService
):
self.session = session
self.contract_service = contract_service
async def create_swap_order(self, request: SwapCreateRequest) -> AtomicSwapOrder:
"""Create a new atomic swap order between two agents"""
# Validate timelocks (initiator must have significantly more time to safely refund if participant vanishes)
if request.source_timelock_hours <= request.target_timelock_hours:
raise HTTPException(
status_code=400,
detail="Source timelock must be strictly greater than target timelock to ensure safety for initiator."
)
# Generate secret and hashlock if not provided
secret = request.secret
if not secret:
secret = secrets.token_hex(32)
# Standard HTLC uses SHA256 of the secret
hashlock = "0x" + hashlib.sha256(secret.encode()).hexdigest()
now = datetime.utcnow()
source_timelock = int((now + timedelta(hours=request.source_timelock_hours)).timestamp())
target_timelock = int((now + timedelta(hours=request.target_timelock_hours)).timestamp())
order = AtomicSwapOrder(
initiator_agent_id=request.initiator_agent_id,
initiator_address=request.initiator_address,
source_chain_id=request.source_chain_id,
source_token=request.source_token,
source_amount=request.source_amount,
participant_agent_id=request.participant_agent_id,
participant_address=request.participant_address,
target_chain_id=request.target_chain_id,
target_token=request.target_token,
target_amount=request.target_amount,
hashlock=hashlock,
secret=secret,
source_timelock=source_timelock,
target_timelock=target_timelock,
status=SwapStatus.CREATED
)
self.session.add(order)
self.session.commit()
self.session.refresh(order)
logger.info(f"Created atomic swap order {order.id} with hashlock {order.hashlock}")
return order
async def get_swap_order(self, swap_id: str) -> Optional[AtomicSwapOrder]:
return self.session.get(AtomicSwapOrder, swap_id)
async def get_agent_swaps(self, agent_id: str) -> List[AtomicSwapOrder]:
"""Get all swaps where the agent is either initiator or participant"""
return self.session.exec(
select(AtomicSwapOrder).where(
(AtomicSwapOrder.initiator_agent_id == agent_id) |
(AtomicSwapOrder.participant_agent_id == agent_id)
)
).all()
async def mark_initiated(self, swap_id: str, request: SwapActionRequest) -> AtomicSwapOrder:
"""Mark that the initiator has locked funds on the source chain"""
order = self.session.get(AtomicSwapOrder, swap_id)
if not order:
raise HTTPException(status_code=404, detail="Swap order not found")
if order.status != SwapStatus.CREATED:
raise HTTPException(status_code=400, detail="Swap is not in CREATED state")
# In a real system, we would verify the tx_hash using an RPC call to ensure funds are actually locked
order.status = SwapStatus.INITIATED
order.source_initiate_tx = request.tx_hash
order.updated_at = datetime.utcnow()
self.session.commit()
self.session.refresh(order)
logger.info(f"Swap {swap_id} marked as INITIATED. Tx: {request.tx_hash}")
return order
async def mark_participating(self, swap_id: str, request: SwapActionRequest) -> AtomicSwapOrder:
"""Mark that the participant has locked funds on the target chain"""
order = self.session.get(AtomicSwapOrder, swap_id)
if not order:
raise HTTPException(status_code=404, detail="Swap order not found")
if order.status != SwapStatus.INITIATED:
raise HTTPException(status_code=400, detail="Swap is not in INITIATED state")
order.status = SwapStatus.PARTICIPATING
order.target_participate_tx = request.tx_hash
order.updated_at = datetime.utcnow()
self.session.commit()
self.session.refresh(order)
logger.info(f"Swap {swap_id} marked as PARTICIPATING. Tx: {request.tx_hash}")
return order
async def complete_swap(self, swap_id: str, request: SwapCompleteRequest) -> AtomicSwapOrder:
"""Initiator reveals secret to claim funds on target chain, Participant can then use secret on source chain"""
order = self.session.get(AtomicSwapOrder, swap_id)
if not order:
raise HTTPException(status_code=404, detail="Swap order not found")
if order.status != SwapStatus.PARTICIPATING:
raise HTTPException(status_code=400, detail="Swap is not in PARTICIPATING state")
# Verify the provided secret matches the hashlock
test_hashlock = "0x" + hashlib.sha256(request.secret.encode()).hexdigest()
if test_hashlock != order.hashlock:
raise HTTPException(status_code=400, detail="Provided secret does not match hashlock")
order.status = SwapStatus.COMPLETED
order.target_complete_tx = request.tx_hash
# Secret is now publicly known on the blockchain
order.updated_at = datetime.utcnow()
self.session.commit()
self.session.refresh(order)
logger.info(f"Swap {swap_id} marked as COMPLETED. Secret revealed.")
return order
async def refund_swap(self, swap_id: str, request: SwapActionRequest) -> AtomicSwapOrder:
"""Refund a swap whose timelock has expired"""
order = self.session.get(AtomicSwapOrder, swap_id)
if not order:
raise HTTPException(status_code=404, detail="Swap order not found")
now = int(datetime.utcnow().timestamp())
if order.status == SwapStatus.INITIATED and now < order.source_timelock:
raise HTTPException(status_code=400, detail="Source timelock has not expired yet")
if order.status == SwapStatus.PARTICIPATING and now < order.target_timelock:
raise HTTPException(status_code=400, detail="Target timelock has not expired yet")
order.status = SwapStatus.REFUNDED
order.refund_tx = request.tx_hash
order.updated_at = datetime.utcnow()
self.session.commit()
self.session.refresh(order)
logger.info(f"Swap {swap_id} marked as REFUNDED.")
return order

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"""
Cross-Chain Bridge Service
Production-ready cross-chain bridge service with atomic swap protocol implementation
"""
import asyncio
import json
from datetime import datetime, timedelta
from typing import Dict, List, Optional, Any, Tuple, Union
from uuid import uuid4
from decimal import Decimal
from enum import Enum
import secrets
import hashlib
from aitbc.logging import get_logger
from sqlmodel import Session, select, update, delete, func, Field
from sqlalchemy.exc import SQLAlchemyError
from ..domain.cross_chain_bridge import (
BridgeRequestStatus, ChainType, TransactionType, ValidatorStatus,
CrossChainBridgeRequest, BridgeValidator, BridgeLiquidityPool
)
from ..domain.agent_identity import AgentWallet, CrossChainMapping
from ..agent_identity.wallet_adapter_enhanced import (
EnhancedWalletAdapter, WalletAdapterFactory, SecurityLevel,
TransactionStatus, WalletStatus
)
from ..reputation.engine import CrossChainReputationEngine
logger = get_logger(__name__)
class BridgeProtocol(str, Enum):
"""Bridge protocol types"""
ATOMIC_SWAP = "atomic_swap"
HTLC = "htlc" # Hashed Timelock Contract
LIQUIDITY_POOL = "liquidity_pool"
WRAPPED_TOKEN = "wrapped_token"
class BridgeSecurityLevel(str, Enum):
"""Bridge security levels"""
LOW = "low"
MEDIUM = "medium"
HIGH = "high"
MAXIMUM = "maximum"
class CrossChainBridgeService:
"""Production-ready cross-chain bridge service"""
def __init__(self, session: Session):
self.session = session
self.wallet_adapters: Dict[int, EnhancedWalletAdapter] = {}
self.bridge_protocols: Dict[str, Any] = {}
self.liquidity_pools: Dict[Tuple[int, int], Any] = {}
self.reputation_engine = CrossChainReputationEngine(session)
async def initialize_bridge(self, chain_configs: Dict[int, Dict[str, Any]]) -> None:
"""Initialize bridge service with chain configurations"""
try:
for chain_id, config in chain_configs.items():
# Create wallet adapter for each chain
adapter = WalletAdapterFactory.create_adapter(
chain_id=chain_id,
rpc_url=config["rpc_url"],
security_level=SecurityLevel(config.get("security_level", "medium"))
)
self.wallet_adapters[chain_id] = adapter
# Initialize bridge protocol
protocol = config.get("protocol", BridgeProtocol.ATOMIC_SWAP)
self.bridge_protocols[str(chain_id)] = {
"protocol": protocol,
"enabled": config.get("enabled", True),
"min_amount": config.get("min_amount", 0.001),
"max_amount": config.get("max_amount", 1000000),
"fee_rate": config.get("fee_rate", 0.005), # 0.5%
"confirmation_blocks": config.get("confirmation_blocks", 12)
}
# Initialize liquidity pool if applicable
if protocol == BridgeProtocol.LIQUIDITY_POOL:
await self._initialize_liquidity_pool(chain_id, config)
logger.info(f"Initialized bridge service for {len(chain_configs)} chains")
except Exception as e:
logger.error(f"Error initializing bridge service: {e}")
raise
async def create_bridge_request(
self,
user_address: str,
source_chain_id: int,
target_chain_id: int,
amount: Union[Decimal, float, str],
token_address: Optional[str] = None,
target_address: Optional[str] = None,
protocol: Optional[BridgeProtocol] = None,
security_level: BridgeSecurityLevel = BridgeSecurityLevel.MEDIUM,
deadline_minutes: int = 30
) -> Dict[str, Any]:
"""Create a new cross-chain bridge request"""
try:
# Validate chains
if source_chain_id not in self.wallet_adapters or target_chain_id not in self.wallet_adapters:
raise ValueError("Unsupported chain ID")
if source_chain_id == target_chain_id:
raise ValueError("Source and target chains must be different")
# Validate amount
amount_float = float(amount)
source_config = self.bridge_protocols[str(source_chain_id)]
if amount_float < source_config["min_amount"] or amount_float > source_config["max_amount"]:
raise ValueError(f"Amount must be between {source_config['min_amount']} and {source_config['max_amount']}")
# Validate addresses
source_adapter = self.wallet_adapters[source_chain_id]
target_adapter = self.wallet_adapters[target_chain_id]
if not await source_adapter.validate_address(user_address):
raise ValueError(f"Invalid source address: {user_address}")
target_address = target_address or user_address
if not await target_adapter.validate_address(target_address):
raise ValueError(f"Invalid target address: {target_address}")
# Calculate fees
bridge_fee = amount_float * source_config["fee_rate"]
network_fee = await self._estimate_network_fee(source_chain_id, amount_float, token_address)
total_fee = bridge_fee + network_fee
# Select protocol
protocol = protocol or BridgeProtocol(source_config["protocol"])
# Create bridge request
bridge_request = CrossChainBridgeRequest(
id=f"bridge_{uuid4().hex[:8]}",
user_address=user_address,
source_chain_id=source_chain_id,
target_chain_id=target_chain_id,
amount=amount_float,
token_address=token_address,
target_address=target_address,
protocol=protocol.value,
security_level=security_level.value,
bridge_fee=bridge_fee,
network_fee=network_fee,
total_fee=total_fee,
deadline=datetime.utcnow() + timedelta(minutes=deadline_minutes),
status=BridgeRequestStatus.PENDING,
created_at=datetime.utcnow()
)
self.session.add(bridge_request)
self.session.commit()
self.session.refresh(bridge_request)
# Start bridge process
await self._process_bridge_request(bridge_request.id)
logger.info(f"Created bridge request {bridge_request.id} for {amount_float} tokens")
return {
"bridge_request_id": bridge_request.id,
"source_chain_id": source_chain_id,
"target_chain_id": target_chain_id,
"amount": str(amount_float),
"token_address": token_address,
"target_address": target_address,
"protocol": protocol.value,
"bridge_fee": bridge_fee,
"network_fee": network_fee,
"total_fee": total_fee,
"estimated_completion": bridge_request.deadline.isoformat(),
"status": bridge_request.status.value,
"created_at": bridge_request.created_at.isoformat()
}
except Exception as e:
logger.error(f"Error creating bridge request: {e}")
self.session.rollback()
raise
async def get_bridge_request_status(self, bridge_request_id: str) -> Dict[str, Any]:
"""Get status of a bridge request"""
try:
stmt = select(CrossChainBridgeRequest).where(
CrossChainBridgeRequest.id == bridge_request_id
)
bridge_request = self.session.exec(stmt).first()
if not bridge_request:
raise ValueError(f"Bridge request {bridge_request_id} not found")
# Get transaction details
transactions = []
if bridge_request.source_transaction_hash:
source_tx = await self._get_transaction_details(
bridge_request.source_chain_id,
bridge_request.source_transaction_hash
)
transactions.append({
"chain_id": bridge_request.source_chain_id,
"transaction_hash": bridge_request.source_transaction_hash,
"status": source_tx.get("status"),
"confirmations": await self._get_transaction_confirmations(
bridge_request.source_chain_id,
bridge_request.source_transaction_hash
)
})
if bridge_request.target_transaction_hash:
target_tx = await self._get_transaction_details(
bridge_request.target_chain_id,
bridge_request.target_transaction_hash
)
transactions.append({
"chain_id": bridge_request.target_chain_id,
"transaction_hash": bridge_request.target_transaction_hash,
"status": target_tx.get("status"),
"confirmations": await self._get_transaction_confirmations(
bridge_request.target_chain_id,
bridge_request.target_transaction_hash
)
})
# Calculate progress
progress = await self._calculate_bridge_progress(bridge_request)
return {
"bridge_request_id": bridge_request.id,
"user_address": bridge_request.user_address,
"source_chain_id": bridge_request.source_chain_id,
"target_chain_id": bridge_request.target_chain_id,
"amount": bridge_request.amount,
"token_address": bridge_request.token_address,
"target_address": bridge_request.target_address,
"protocol": bridge_request.protocol,
"status": bridge_request.status.value,
"progress": progress,
"transactions": transactions,
"bridge_fee": bridge_request.bridge_fee,
"network_fee": bridge_request.network_fee,
"total_fee": bridge_request.total_fee,
"deadline": bridge_request.deadline.isoformat(),
"created_at": bridge_request.created_at.isoformat(),
"updated_at": bridge_request.updated_at.isoformat(),
"completed_at": bridge_request.completed_at.isoformat() if bridge_request.completed_at else None
}
except Exception as e:
logger.error(f"Error getting bridge request status: {e}")
raise
async def cancel_bridge_request(self, bridge_request_id: str, reason: str) -> Dict[str, Any]:
"""Cancel a bridge request"""
try:
stmt = select(CrossChainBridgeRequest).where(
CrossChainBridgeRequest.id == bridge_request_id
)
bridge_request = self.session.exec(stmt).first()
if not bridge_request:
raise ValueError(f"Bridge request {bridge_request_id} not found")
if bridge_request.status not in [BridgeRequestStatus.PENDING, BridgeRequestStatus.CONFIRMED]:
raise ValueError(f"Cannot cancel bridge request in status: {bridge_request.status}")
# Update status
bridge_request.status = BridgeRequestStatus.CANCELLED
bridge_request.cancellation_reason = reason
bridge_request.updated_at = datetime.utcnow()
self.session.commit()
# Refund if applicable
if bridge_request.source_transaction_hash:
await self._process_refund(bridge_request)
logger.info(f"Cancelled bridge request {bridge_request_id}: {reason}")
return {
"bridge_request_id": bridge_request_id,
"status": BridgeRequestStatus.CANCELLED.value,
"reason": reason,
"cancelled_at": datetime.utcnow().isoformat()
}
except Exception as e:
logger.error(f"Error cancelling bridge request: {e}")
self.session.rollback()
raise
async def get_bridge_statistics(self, time_period_hours: int = 24) -> Dict[str, Any]:
"""Get bridge statistics for the specified time period"""
try:
cutoff_time = datetime.utcnow() - timedelta(hours=time_period_hours)
# Get total requests
total_requests = self.session.exec(
select(func.count(CrossChainBridgeRequest.id)).where(
CrossChainBridgeRequest.created_at >= cutoff_time
)
).scalar() or 0
# Get completed requests
completed_requests = self.session.exec(
select(func.count(CrossChainBridgeRequest.id)).where(
CrossChainBridgeRequest.created_at >= cutoff_time,
CrossChainBridgeRequest.status == BridgeRequestStatus.COMPLETED
)
).scalar() or 0
# Get total volume
total_volume = self.session.exec(
select(func.sum(CrossChainBridgeRequest.amount)).where(
CrossChainBridgeRequest.created_at >= cutoff_time,
CrossChainBridgeRequest.status == BridgeRequestStatus.COMPLETED
)
).scalar() or 0
# Get total fees
total_fees = self.session.exec(
select(func.sum(CrossChainBridgeRequest.total_fee)).where(
CrossChainBridgeRequest.created_at >= cutoff_time,
CrossChainBridgeRequest.status == BridgeRequestStatus.COMPLETED
)
).scalar() or 0
# Get success rate
success_rate = completed_requests / max(total_requests, 1)
# Get average processing time
avg_processing_time = self.session.exec(
select(func.avg(
func.extract('epoch', CrossChainBridgeRequest.completed_at) -
func.extract('epoch', CrossChainBridgeRequest.created_at)
)).where(
CrossChainBridgeRequest.created_at >= cutoff_time,
CrossChainBridgeRequest.status == BridgeRequestStatus.COMPLETED
)
).scalar() or 0
# Get chain distribution
chain_distribution = {}
for chain_id in self.wallet_adapters.keys():
chain_requests = self.session.exec(
select(func.count(CrossChainBridgeRequest.id)).where(
CrossChainBridgeRequest.created_at >= cutoff_time,
CrossChainBridgeRequest.source_chain_id == chain_id
)
).scalar() or 0
chain_distribution[str(chain_id)] = chain_requests
return {
"time_period_hours": time_period_hours,
"total_requests": total_requests,
"completed_requests": completed_requests,
"success_rate": success_rate,
"total_volume": total_volume,
"total_fees": total_fees,
"average_processing_time_minutes": avg_processing_time / 60,
"chain_distribution": chain_distribution,
"generated_at": datetime.utcnow().isoformat()
}
except Exception as e:
logger.error(f"Error getting bridge statistics: {e}")
raise
async def get_liquidity_pools(self) -> List[Dict[str, Any]]:
"""Get all liquidity pool information"""
try:
pools = []
for chain_pair, pool in self.liquidity_pools.items():
source_chain, target_chain = chain_pair
pool_info = {
"source_chain_id": source_chain,
"target_chain_id": target_chain,
"total_liquidity": pool.get("total_liquidity", 0),
"utilization_rate": pool.get("utilization_rate", 0),
"apr": pool.get("apr", 0),
"fee_rate": pool.get("fee_rate", 0.005),
"last_updated": pool.get("last_updated", datetime.utcnow().isoformat())
}
pools.append(pool_info)
return pools
except Exception as e:
logger.error(f"Error getting liquidity pools: {e}")
raise
# Private methods
async def _process_bridge_request(self, bridge_request_id: str) -> None:
"""Process a bridge request"""
try:
stmt = select(CrossChainBridgeRequest).where(
CrossChainBridgeRequest.id == bridge_request_id
)
bridge_request = self.session.exec(stmt).first()
if not bridge_request:
logger.error(f"Bridge request {bridge_request_id} not found")
return
# Update status to confirmed
bridge_request.status = BridgeRequestStatus.CONFIRMED
bridge_request.updated_at = datetime.utcnow()
self.session.commit()
# Execute bridge based on protocol
if bridge_request.protocol == BridgeProtocol.ATOMIC_SWAP.value:
await self._execute_atomic_swap(bridge_request)
elif bridge_request.protocol == BridgeProtocol.LIQUIDITY_POOL.value:
await self._execute_liquidity_pool_swap(bridge_request)
elif bridge_request.protocol == BridgeProtocol.HTLC.value:
await self._execute_htlc_swap(bridge_request)
else:
raise ValueError(f"Unsupported protocol: {bridge_request.protocol}")
except Exception as e:
logger.error(f"Error processing bridge request {bridge_request_id}: {e}")
# Update status to failed
try:
stmt = update(CrossChainBridgeRequest).where(
CrossChainBridgeRequest.id == bridge_request_id
).values(
status=BridgeRequestStatus.FAILED,
error_message=str(e),
updated_at=datetime.utcnow()
)
self.session.exec(stmt)
self.session.commit()
except:
pass
async def _execute_atomic_swap(self, bridge_request: CrossChainBridgeRequest) -> None:
"""Execute atomic swap protocol"""
try:
source_adapter = self.wallet_adapters[bridge_request.source_chain_id]
target_adapter = self.wallet_adapters[bridge_request.target_chain_id]
# Create atomic swap contract on source chain
source_swap_data = await self._create_atomic_swap_contract(
bridge_request,
"source"
)
# Execute source transaction
source_tx = await source_adapter.execute_transaction(
from_address=bridge_request.user_address,
to_address=source_swap_data["contract_address"],
amount=bridge_request.amount,
token_address=bridge_request.token_address,
data=source_swap_data["contract_data"]
)
# Update bridge request with source transaction
bridge_request.source_transaction_hash = source_tx["transaction_hash"]
bridge_request.updated_at = datetime.utcnow()
self.session.commit()
# Wait for confirmations
await self._wait_for_confirmations(
bridge_request.source_chain_id,
source_tx["transaction_hash"]
)
# Execute target transaction
target_swap_data = await self._create_atomic_swap_contract(
bridge_request,
"target"
)
target_tx = await target_adapter.execute_transaction(
from_address=bridge_request.target_address,
to_address=target_swap_data["contract_address"],
amount=bridge_request.amount * 0.99, # Account for fees
token_address=bridge_request.token_address,
data=target_swap_data["contract_data"]
)
# Update bridge request with target transaction
bridge_request.target_transaction_hash = target_tx["transaction_hash"]
bridge_request.status = BridgeRequestStatus.COMPLETED
bridge_request.completed_at = datetime.utcnow()
bridge_request.updated_at = datetime.utcnow()
self.session.commit()
logger.info(f"Completed atomic swap for bridge request {bridge_request.id}")
except Exception as e:
logger.error(f"Error executing atomic swap: {e}")
raise
async def _execute_liquidity_pool_swap(self, bridge_request: CrossChainBridgeRequest) -> None:
"""Execute liquidity pool swap"""
try:
source_adapter = self.wallet_adapters[bridge_request.source_chain_id]
target_adapter = self.wallet_adapters[bridge_request.target_chain_id]
# Get liquidity pool
pool_key = (bridge_request.source_chain_id, bridge_request.target_chain_id)
pool = self.liquidity_pools.get(pool_key)
if not pool:
raise ValueError(f"No liquidity pool found for chain pair {pool_key}")
# Execute swap through liquidity pool
swap_data = await self._create_liquidity_pool_swap_data(bridge_request, pool)
# Execute source transaction
source_tx = await source_adapter.execute_transaction(
from_address=bridge_request.user_address,
to_address=swap_data["pool_address"],
amount=bridge_request.amount,
token_address=bridge_request.token_address,
data=swap_data["swap_data"]
)
# Update bridge request
bridge_request.source_transaction_hash = source_tx["transaction_hash"]
bridge_request.status = BridgeRequestStatus.COMPLETED
bridge_request.completed_at = datetime.utcnow()
bridge_request.updated_at = datetime.utcnow()
self.session.commit()
logger.info(f"Completed liquidity pool swap for bridge request {bridge_request.id}")
except Exception as e:
logger.error(f"Error executing liquidity pool swap: {e}")
raise
async def _execute_htlc_swap(self, bridge_request: CrossChainBridgeRequest) -> None:
"""Execute HTLC (Hashed Timelock Contract) swap"""
try:
# Generate secret and hash
secret = secrets.token_hex(32)
secret_hash = hashlib.sha256(secret.encode()).hexdigest()
# Create HTLC contract on source chain
source_htlc_data = await self._create_htlc_contract(
bridge_request,
secret_hash,
"source"
)
source_adapter = self.wallet_adapters[bridge_request.source_chain_id]
source_tx = await source_adapter.execute_transaction(
from_address=bridge_request.user_address,
to_address=source_htlc_data["contract_address"],
amount=bridge_request.amount,
token_address=bridge_request.token_address,
data=source_htlc_data["contract_data"]
)
# Update bridge request
bridge_request.source_transaction_hash = source_tx["transaction_hash"]
bridge_request.secret_hash = secret_hash
bridge_request.updated_at = datetime.utcnow()
self.session.commit()
# Create HTLC contract on target chain
target_htlc_data = await self._create_htlc_contract(
bridge_request,
secret_hash,
"target"
)
target_adapter = self.wallet_adapters[bridge_request.target_chain_id]
target_tx = await target_adapter.execute_transaction(
from_address=bridge_request.target_address,
to_address=target_htlc_data["contract_address"],
amount=bridge_request.amount * 0.99,
token_address=bridge_request.token_address,
data=target_htlc_data["contract_data"]
)
# Complete HTLC by revealing secret
await self._complete_htlc(bridge_request, secret)
logger.info(f"Completed HTLC swap for bridge request {bridge_request.id}")
except Exception as e:
logger.error(f"Error executing HTLC swap: {e}")
raise
async def _create_atomic_swap_contract(self, bridge_request: CrossChainBridgeRequest, direction: str) -> Dict[str, Any]:
"""Create atomic swap contract data"""
# Mock implementation
contract_address = f"0x{hashlib.sha256(f'atomic_swap_{bridge_request.id}_{direction}'.encode()).hexdigest()[:40]}"
contract_data = f"0x{hashlib.sha256(f'swap_data_{bridge_request.id}'.encode()).hexdigest()}"
return {
"contract_address": contract_address,
"contract_data": contract_data
}
async def _create_liquidity_pool_swap_data(self, bridge_request: CrossChainBridgeRequest, pool: Dict[str, Any]) -> Dict[str, Any]:
"""Create liquidity pool swap data"""
# Mock implementation
pool_address = pool.get("address", f"0x{hashlib.sha256(f'pool_{bridge_request.source_chain_id}_{bridge_request.target_chain_id}'.encode()).hexdigest()[:40]}")
swap_data = f"0x{hashlib.sha256(f'swap_{bridge_request.id}'.encode()).hexdigest()}"
return {
"pool_address": pool_address,
"swap_data": swap_data
}
async def _create_htlc_contract(self, bridge_request: CrossChainBridgeRequest, secret_hash: str, direction: str) -> Dict[str, Any]:
"""Create HTLC contract data"""
contract_address = f"0x{hashlib.sha256(f'htlc_{bridge_request.id}_{direction}_{secret_hash}'.encode()).hexdigest()[:40]}"
contract_data = f"0x{hashlib.sha256(f'htlc_data_{bridge_request.id}_{secret_hash}'.encode()).hexdigest()}"
return {
"contract_address": contract_address,
"contract_data": contract_data,
"secret_hash": secret_hash
}
async def _complete_htlc(self, bridge_request: CrossChainBridgeRequest, secret: str) -> None:
"""Complete HTLC by revealing secret"""
# Mock implementation
bridge_request.target_transaction_hash = f"0x{hashlib.sha256(f'htlc_complete_{bridge_request.id}_{secret}'.encode()).hexdigest()}"
bridge_request.status = BridgeRequestStatus.COMPLETED
bridge_request.completed_at = datetime.utcnow()
bridge_request.updated_at = datetime.utcnow()
self.session.commit()
async def _estimate_network_fee(self, chain_id: int, amount: float, token_address: Optional[str]) -> float:
"""Estimate network fee for transaction"""
try:
adapter = self.wallet_adapters[chain_id]
# Mock address for estimation
mock_address = f"0x{hashlib.sha256(f'fee_estimate_{chain_id}'.encode()).hexdigest()[:40]}"
gas_estimate = await adapter.estimate_gas(
from_address=mock_address,
to_address=mock_address,
amount=amount,
token_address=token_address
)
gas_price = await adapter._get_gas_price()
# Convert to ETH value
fee_eth = (int(gas_estimate["gas_limit"], 16) * gas_price) / 10**18
return fee_eth
except Exception as e:
logger.error(f"Error estimating network fee: {e}")
return 0.01 # Default fee
async def _get_transaction_details(self, chain_id: int, transaction_hash: str) -> Dict[str, Any]:
"""Get transaction details"""
try:
adapter = self.wallet_adapters[chain_id]
return await adapter.get_transaction_status(transaction_hash)
except Exception as e:
logger.error(f"Error getting transaction details: {e}")
return {"status": "unknown"}
async def _get_transaction_confirmations(self, chain_id: int, transaction_hash: str) -> int:
"""Get number of confirmations for transaction"""
try:
adapter = self.wallet_adapters[chain_id]
tx_details = await adapter.get_transaction_status(transaction_hash)
if tx_details.get("block_number"):
# Mock current block number
current_block = 12345
tx_block = int(tx_details["block_number"], 16)
return current_block - tx_block
return 0
except Exception as e:
logger.error(f"Error getting transaction confirmations: {e}")
return 0
async def _wait_for_confirmations(self, chain_id: int, transaction_hash: str) -> None:
"""Wait for required confirmations"""
try:
adapter = self.wallet_adapters[chain_id]
required_confirmations = self.bridge_protocols[str(chain_id)]["confirmation_blocks"]
while True:
confirmations = await self._get_transaction_confirmations(chain_id, transaction_hash)
if confirmations >= required_confirmations:
break
await asyncio.sleep(10) # Wait 10 seconds before checking again
except Exception as e:
logger.error(f"Error waiting for confirmations: {e}")
raise
async def _calculate_bridge_progress(self, bridge_request: CrossChainBridgeRequest) -> float:
"""Calculate bridge progress percentage"""
try:
if bridge_request.status == BridgeRequestStatus.COMPLETED:
return 100.0
elif bridge_request.status == BridgeRequestStatus.FAILED or bridge_request.status == BridgeRequestStatus.CANCELLED:
return 0.0
elif bridge_request.status == BridgeRequestStatus.PENDING:
return 10.0
elif bridge_request.status == BridgeRequestStatus.CONFIRMED:
progress = 50.0
# Add progress based on confirmations
if bridge_request.source_transaction_hash:
source_confirmations = await self._get_transaction_confirmations(
bridge_request.source_chain_id,
bridge_request.source_transaction_hash
)
required_confirmations = self.bridge_protocols[str(bridge_request.source_chain_id)]["confirmation_blocks"]
confirmation_progress = (source_confirmations / required_confirmations) * 40
progress += confirmation_progress
return min(progress, 90.0)
return 0.0
except Exception as e:
logger.error(f"Error calculating bridge progress: {e}")
return 0.0
async def _process_refund(self, bridge_request: CrossChainBridgeRequest) -> None:
"""Process refund for cancelled bridge request"""
try:
# Mock refund implementation
logger.info(f"Processing refund for bridge request {bridge_request.id}")
except Exception as e:
logger.error(f"Error processing refund: {e}")
async def _initialize_liquidity_pool(self, chain_id: int, config: Dict[str, Any]) -> None:
"""Initialize liquidity pool for chain"""
try:
# Mock liquidity pool initialization
pool_address = f"0x{hashlib.sha256(f'pool_{chain_id}'.encode()).hexdigest()[:40]}"
self.liquidity_pools[(chain_id, 1)] = { # Assuming ETH as target
"address": pool_address,
"total_liquidity": config.get("initial_liquidity", 1000000),
"utilization_rate": 0.0,
"apr": 0.05, # 5% APR
"fee_rate": 0.005, # 0.5% fee
"last_updated": datetime.utcnow()
}
logger.info(f"Initialized liquidity pool for chain {chain_id}")
except Exception as e:
logger.error(f"Error initializing liquidity pool: {e}")

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"""
Global Marketplace Services
Core services for global marketplace operations, multi-region support, and cross-chain integration
"""
import asyncio
from datetime import datetime, timedelta
from typing import Dict, List, Optional, Any, Tuple
from uuid import uuid4
import json
from decimal import Decimal
from aitbc.logging import get_logger
from sqlmodel import Session, select, update, delete, func, Field
from sqlalchemy.exc import SQLAlchemyError
from ..domain.global_marketplace import (
MarketplaceRegion, GlobalMarketplaceConfig, GlobalMarketplaceOffer,
GlobalMarketplaceTransaction, GlobalMarketplaceAnalytics, GlobalMarketplaceGovernance,
RegionStatus, MarketplaceStatus
)
from ..domain.marketplace import MarketplaceOffer, MarketplaceBid
from ..domain.agent_identity import AgentIdentity
from ..reputation.engine import CrossChainReputationEngine
logger = get_logger(__name__)
class GlobalMarketplaceService:
"""Core service for global marketplace operations"""
def __init__(self, session: Session):
self.session = session
async def create_global_offer(
self,
request: GlobalMarketplaceOfferRequest,
agent_identity: AgentIdentity
) -> GlobalMarketplaceOffer:
"""Create a new global marketplace offer"""
try:
# Validate agent has required reputation for global marketplace
reputation_engine = CrossChainReputationEngine(self.session)
reputation_summary = await reputation_engine.get_agent_reputation_summary(agent_identity.id)
if reputation_summary.get('trust_score', 0) < 500: # Minimum reputation for global marketplace
raise ValueError("Insufficient reputation for global marketplace")
# Create global offer
global_offer = GlobalMarketplaceOffer(
original_offer_id=f"offer_{uuid4().hex[:8]}",
agent_id=agent_identity.id,
service_type=request.service_type,
resource_specification=request.resource_specification,
base_price=request.base_price,
currency=request.currency,
total_capacity=request.total_capacity,
available_capacity=request.total_capacity,
regions_available=request.regions_available or ["global"],
supported_chains=request.supported_chains,
dynamic_pricing_enabled=request.dynamic_pricing_enabled,
expires_at=request.expires_at
)
# Calculate regional pricing based on load factors
regions = await self._get_active_regions()
price_per_region = {}
for region in regions:
load_factor = region.load_factor
regional_price = request.base_price * load_factor
price_per_region[region.region_code] = regional_price
global_offer.price_per_region = price_per_region
# Set initial region statuses
region_statuses = {}
for region_code in global_offer.regions_available:
region_statuses[region_code] = MarketplaceStatus.ACTIVE
global_offer.region_statuses = region_statuses
self.session.add(global_offer)
self.session.commit()
self.session.refresh(global_offer)
logger.info(f"Created global offer {global_offer.id} for agent {agent_identity.id}")
return global_offer
except Exception as e:
logger.error(f"Error creating global offer: {e}")
self.session.rollback()
raise
async def get_global_offers(
self,
region: Optional[str] = None,
service_type: Optional[str] = None,
status: Optional[MarketplaceStatus] = None,
limit: int = 100,
offset: int = 0
) -> List[GlobalMarketplaceOffer]:
"""Get global marketplace offers with filtering"""
try:
stmt = select(GlobalMarketplaceOffer)
# Apply filters
if service_type:
stmt = stmt.where(GlobalMarketplaceOffer.service_type == service_type)
if status:
stmt = stmt.where(GlobalMarketplaceOffer.global_status == status)
# Filter by region availability
if region and region != "global":
stmt = stmt.where(
GlobalMarketplaceOffer.regions_available.contains([region])
)
# Apply ordering and pagination
stmt = stmt.order_by(
GlobalMarketplaceOffer.created_at.desc()
).offset(offset).limit(limit)
offers = self.session.exec(stmt).all()
# Filter out expired offers
current_time = datetime.utcnow()
valid_offers = []
for offer in offers:
if offer.expires_at is None or offer.expires_at > current_time:
valid_offers.append(offer)
return valid_offers
except Exception as e:
logger.error(f"Error getting global offers: {e}")
raise
async def create_global_transaction(
self,
request: GlobalMarketplaceTransactionRequest,
buyer_identity: AgentIdentity
) -> GlobalMarketplaceTransaction:
"""Create a global marketplace transaction"""
try:
# Get the offer
stmt = select(GlobalMarketplaceOffer).where(
GlobalMarketplaceOffer.id == request.offer_id
)
offer = self.session.exec(stmt).first()
if not offer:
raise ValueError("Offer not found")
if offer.available_capacity < request.quantity:
raise ValueError("Insufficient capacity")
# Validate buyer reputation
reputation_engine = CrossChainReputationEngine(self.session)
buyer_reputation = await reputation_engine.get_agent_reputation_summary(buyer_identity.id)
if buyer_reputation.get('trust_score', 0) < 300: # Minimum reputation for transactions
raise ValueError("Insufficient reputation for transactions")
# Calculate pricing
unit_price = offer.base_price
total_amount = unit_price * request.quantity
# Add regional fees
regional_fees = {}
if request.source_region != "global":
regions = await self._get_active_regions()
for region in regions:
if region.region_code == request.source_region:
regional_fees[region.region_code] = total_amount * 0.01 # 1% regional fee
# Add cross-chain fees if applicable
cross_chain_fee = 0.0
if request.source_chain and request.target_chain and request.source_chain != request.target_chain:
cross_chain_fee = total_amount * 0.005 # 0.5% cross-chain fee
# Create transaction
transaction = GlobalMarketplaceTransaction(
buyer_id=buyer_identity.id,
seller_id=offer.agent_id,
offer_id=offer.id,
service_type=offer.service_type,
quantity=request.quantity,
unit_price=unit_price,
total_amount=total_amount + cross_chain_fee + sum(regional_fees.values()),
currency=offer.currency,
source_chain=request.source_chain,
target_chain=request.target_chain,
source_region=request.source_region,
target_region=request.target_region,
cross_chain_fee=cross_chain_fee,
regional_fees=regional_fees,
status="pending",
payment_status="pending",
delivery_status="pending"
)
# Update offer capacity
offer.available_capacity -= request.quantity
offer.total_transactions += 1
offer.updated_at = datetime.utcnow()
self.session.add(transaction)
self.session.commit()
self.session.refresh(transaction)
logger.info(f"Created global transaction {transaction.id} for offer {offer.id}")
return transaction
except Exception as e:
logger.error(f"Error creating global transaction: {e}")
self.session.rollback()
raise
async def get_global_transactions(
self,
user_id: Optional[str] = None,
status: Optional[str] = None,
limit: int = 100,
offset: int = 0
) -> List[GlobalMarketplaceTransaction]:
"""Get global marketplace transactions"""
try:
stmt = select(GlobalMarketplaceTransaction)
# Apply filters
if user_id:
stmt = stmt.where(
(GlobalMarketplaceTransaction.buyer_id == user_id) |
(GlobalMarketplaceTransaction.seller_id == user_id)
)
if status:
stmt = stmt.where(GlobalMarketplaceTransaction.status == status)
# Apply ordering and pagination
stmt = stmt.order_by(
GlobalMarketplaceTransaction.created_at.desc()
).offset(offset).limit(limit)
transactions = self.session.exec(stmt).all()
return transactions
except Exception as e:
logger.error(f"Error getting global transactions: {e}")
raise
async def get_marketplace_analytics(
self,
request: GlobalMarketplaceAnalyticsRequest
) -> GlobalMarketplaceAnalytics:
"""Get global marketplace analytics"""
try:
# Check if analytics already exist for the period
stmt = select(GlobalMarketplaceAnalytics).where(
GlobalMarketplaceAnalytics.period_type == request.period_type,
GlobalMarketplaceAnalytics.period_start >= request.start_date,
GlobalMarketplaceAnalytics.period_end <= request.end_date,
GlobalMarketplaceAnalytics.region == request.region
)
existing_analytics = self.session.exec(stmt).first()
if existing_analytics:
return existing_analytics
# Generate new analytics
analytics = await self._generate_analytics(request)
self.session.add(analytics)
self.session.commit()
self.session.refresh(analytics)
return analytics
except Exception as e:
logger.error(f"Error getting marketplace analytics: {e}")
raise
async def _generate_analytics(
self,
request: GlobalMarketplaceAnalyticsRequest
) -> GlobalMarketplaceAnalytics:
"""Generate analytics for the specified period"""
# Get offers in the period
stmt = select(GlobalMarketplaceOffer).where(
GlobalMarketplaceOffer.created_at >= request.start_date,
GlobalMarketplaceOffer.created_at <= request.end_date
)
if request.region != "global":
stmt = stmt.where(
GlobalMarketplaceOffer.regions_available.contains([request.region])
)
offers = self.session.exec(stmt).all()
# Get transactions in the period
stmt = select(GlobalMarketplaceTransaction).where(
GlobalMarketplaceTransaction.created_at >= request.start_date,
GlobalMarketplaceTransaction.created_at <= request.end_date
)
if request.region != "global":
stmt = stmt.where(
(GlobalMarketplaceTransaction.source_region == request.region) |
(GlobalMarketplaceTransaction.target_region == request.region)
)
transactions = self.session.exec(stmt).all()
# Calculate metrics
total_offers = len(offers)
total_transactions = len(transactions)
total_volume = sum(tx.total_amount for tx in transactions)
average_price = total_volume / max(total_transactions, 1)
# Calculate success rate
completed_transactions = [tx for tx in transactions if tx.status == "completed"]
success_rate = len(completed_transactions) / max(total_transactions, 1)
# Cross-chain metrics
cross_chain_transactions = [tx for tx in transactions if tx.source_chain and tx.target_chain]
cross_chain_volume = sum(tx.total_amount for tx in cross_chain_transactions)
# Regional distribution
regional_distribution = {}
for tx in transactions:
region = tx.source_region
regional_distribution[region] = regional_distribution.get(region, 0) + 1
# Create analytics record
analytics = GlobalMarketplaceAnalytics(
period_type=request.period_type,
period_start=request.start_date,
period_end=request.end_date,
region=request.region,
total_offers=total_offers,
total_transactions=total_transactions,
total_volume=total_volume,
average_price=average_price,
success_rate=success_rate,
cross_chain_transactions=len(cross_chain_transactions),
cross_chain_volume=cross_chain_volume,
regional_distribution=regional_distribution
)
return analytics
async def _get_active_regions(self) -> List[MarketplaceRegion]:
"""Get all active marketplace regions"""
stmt = select(MarketplaceRegion).where(
MarketplaceRegion.status == RegionStatus.ACTIVE
)
regions = self.session.exec(stmt).all()
return regions
async def get_region_health(self, region_code: str) -> Dict[str, Any]:
"""Get health status for a specific region"""
try:
stmt = select(MarketplaceRegion).where(
MarketplaceRegion.region_code == region_code
)
region = self.session.exec(stmt).first()
if not region:
return {"status": "not_found"}
# Calculate health metrics
health_score = region.health_score
# Get recent performance
recent_analytics = await self._get_recent_analytics(region_code)
return {
"status": region.status.value,
"health_score": health_score,
"load_factor": region.load_factor,
"average_response_time": region.average_response_time,
"error_rate": region.error_rate,
"last_health_check": region.last_health_check,
"recent_performance": recent_analytics
}
except Exception as e:
logger.error(f"Error getting region health for {region_code}: {e}")
return {"status": "error", "error": str(e)}
async def _get_recent_analytics(self, region: str, hours: int = 24) -> Dict[str, Any]:
"""Get recent analytics for a region"""
try:
cutoff_time = datetime.utcnow() - timedelta(hours=hours)
stmt = select(GlobalMarketplaceAnalytics).where(
GlobalMarketplaceAnalytics.region == region,
GlobalMarketplaceAnalytics.created_at >= cutoff_time
).order_by(GlobalMarketplaceAnalytics.created_at.desc())
analytics = self.session.exec(stmt).first()
if analytics:
return {
"total_transactions": analytics.total_transactions,
"success_rate": analytics.success_rate,
"average_response_time": analytics.average_response_time,
"error_rate": analytics.error_rate
}
return {}
except Exception as e:
logger.error(f"Error getting recent analytics for {region}: {e}")
return {}
class RegionManager:
"""Service for managing global marketplace regions"""
def __init__(self, session: Session):
self.session = session
async def create_region(
self,
region_code: str,
region_name: str,
configuration: Dict[str, Any]
) -> MarketplaceRegion:
"""Create a new marketplace region"""
try:
region = MarketplaceRegion(
region_code=region_code,
region_name=region_name,
geographic_area=configuration.get("geographic_area", "global"),
base_currency=configuration.get("base_currency", "USD"),
timezone=configuration.get("timezone", "UTC"),
language=configuration.get("language", "en"),
api_endpoint=configuration.get("api_endpoint", ""),
websocket_endpoint=configuration.get("websocket_endpoint", ""),
blockchain_rpc_endpoints=configuration.get("blockchain_rpc_endpoints", {}),
load_factor=configuration.get("load_factor", 1.0),
max_concurrent_requests=configuration.get("max_concurrent_requests", 1000),
priority_weight=configuration.get("priority_weight", 1.0)
)
self.session.add(region)
self.session.commit()
self.session.refresh(region)
logger.info(f"Created marketplace region {region_code}")
return region
except Exception as e:
logger.error(f"Error creating region {region_code}: {e}")
self.session.rollback()
raise
async def update_region_health(
self,
region_code: str,
health_metrics: Dict[str, Any]
) -> MarketplaceRegion:
"""Update region health metrics"""
try:
stmt = select(MarketplaceRegion).where(
MarketplaceRegion.region_code == region_code
)
region = self.session.exec(stmt).first()
if not region:
raise ValueError(f"Region {region_code} not found")
# Update health metrics
region.health_score = health_metrics.get("health_score", 1.0)
region.average_response_time = health_metrics.get("average_response_time", 0.0)
region.request_rate = health_metrics.get("request_rate", 0.0)
region.error_rate = health_metrics.get("error_rate", 0.0)
region.last_health_check = datetime.utcnow()
# Update status based on health score
if region.health_score < 0.5:
region.status = RegionStatus.MAINTENANCE
elif region.health_score < 0.8:
region.status = RegionStatus.ACTIVE
else:
region.status = RegionStatus.ACTIVE
self.session.commit()
self.session.refresh(region)
logger.info(f"Updated health for region {region_code}: {region.health_score}")
return region
except Exception as e:
logger.error(f"Error updating region health {region_code}: {e}")
self.session.rollback()
raise
async def get_optimal_region(
self,
service_type: str,
user_location: Optional[str] = None
) -> MarketplaceRegion:
"""Get the optimal region for a service request"""
try:
# Get all active regions
stmt = select(MarketplaceRegion).where(
MarketplaceRegion.status == RegionStatus.ACTIVE
).order_by(MarketplaceRegion.priority_weight.desc())
regions = self.session.exec(stmt).all()
if not regions:
raise ValueError("No active regions available")
# If user location is provided, prioritize geographically close regions
if user_location:
# Simple geographic proximity logic (can be enhanced)
optimal_region = regions[0] # Default to highest priority
else:
# Select region with best health score and lowest load
optimal_region = min(
regions,
key=lambda r: (r.health_score * -1, r.load_factor)
)
return optimal_region
except Exception as e:
logger.error(f"Error getting optimal region: {e}")
raise

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"""
Multi-Chain Wallet Service
Service for managing agent wallets across multiple blockchain networks.
"""
from __future__ import annotations
import logging
from typing import List, Optional, Dict
from sqlalchemy import select
from sqlmodel import Session
from ..domain.wallet import (
AgentWallet, NetworkConfig, TokenBalance, WalletTransaction,
WalletType, TransactionStatus
)
from ..schemas.wallet import WalletCreate, TransactionRequest
from ..blockchain.contract_interactions import ContractInteractionService
# In a real scenario, these would be proper cryptographic key generation utilities
import secrets
import hashlib
logger = logging.getLogger(__name__)
class WalletService:
def __init__(
self,
session: Session,
contract_service: ContractInteractionService
):
self.session = session
self.contract_service = contract_service
async def create_wallet(self, request: WalletCreate) -> AgentWallet:
"""Create a new wallet for an agent"""
# Check if agent already has an active wallet of this type
existing = self.session.exec(
select(AgentWallet).where(
AgentWallet.agent_id == request.agent_id,
AgentWallet.wallet_type == request.wallet_type,
AgentWallet.is_active == True
)
).first()
if existing:
raise ValueError(f"Agent {request.agent_id} already has an active {request.wallet_type} wallet")
# Simulate key generation (in reality, use a secure KMS or HSM)
priv_key = secrets.token_hex(32)
pub_key = hashlib.sha256(priv_key.encode()).hexdigest()
# Fake Ethereum address derivation for simulation
address = "0x" + hashlib.sha3_256(pub_key.encode()).hexdigest()[-40:]
wallet = AgentWallet(
agent_id=request.agent_id,
address=address,
public_key=pub_key,
wallet_type=request.wallet_type,
metadata=request.metadata,
encrypted_private_key="[ENCRYPTED_MOCK]" # Real implementation would encrypt it securely
)
self.session.add(wallet)
self.session.commit()
self.session.refresh(wallet)
logger.info(f"Created wallet {wallet.address} for agent {request.agent_id}")
return wallet
async def get_wallet_by_agent(self, agent_id: str) -> List[AgentWallet]:
"""Retrieve all active wallets for an agent"""
return self.session.exec(
select(AgentWallet).where(
AgentWallet.agent_id == agent_id,
AgentWallet.is_active == True
)
).all()
async def get_balances(self, wallet_id: int) -> List[TokenBalance]:
"""Get all tracked balances for a wallet"""
return self.session.exec(
select(TokenBalance).where(TokenBalance.wallet_id == wallet_id)
).all()
async def update_balance(self, wallet_id: int, chain_id: int, token_address: str, balance: float) -> TokenBalance:
"""Update a specific token balance for a wallet"""
record = self.session.exec(
select(TokenBalance).where(
TokenBalance.wallet_id == wallet_id,
TokenBalance.chain_id == chain_id,
TokenBalance.token_address == token_address
)
).first()
if record:
record.balance = balance
else:
# Need to get token symbol (mocked here, would usually query RPC)
symbol = "ETH" if token_address == "native" else "ERC20"
record = TokenBalance(
wallet_id=wallet_id,
chain_id=chain_id,
token_address=token_address,
token_symbol=symbol,
balance=balance
)
self.session.add(record)
self.session.commit()
self.session.refresh(record)
return record
async def submit_transaction(self, wallet_id: int, request: TransactionRequest) -> WalletTransaction:
"""Submit a transaction from a wallet"""
wallet = self.session.get(AgentWallet, wallet_id)
if not wallet or not wallet.is_active:
raise ValueError("Wallet not found or inactive")
# In a real implementation, this would:
# 1. Fetch the network config
# 2. Construct the transaction payload
# 3. Sign it using the KMS/HSM
# 4. Broadcast via RPC
tx = WalletTransaction(
wallet_id=wallet.id,
chain_id=request.chain_id,
to_address=request.to_address,
value=request.value,
data=request.data,
gas_limit=request.gas_limit,
gas_price=request.gas_price,
status=TransactionStatus.PENDING
)
self.session.add(tx)
self.session.commit()
self.session.refresh(tx)
# Mocking the blockchain submission for now
# tx_hash = await self.contract_service.broadcast_raw_tx(...)
tx.tx_hash = "0x" + secrets.token_hex(32)
tx.status = TransactionStatus.SUBMITTED
self.session.commit()
self.session.refresh(tx)
logger.info(f"Submitted transaction {tx.tx_hash} from wallet {wallet.address}")
return tx