135 lines
4.3 KiB
Python
Executable File
135 lines
4.3 KiB
Python
Executable File
#!/usr/bin/env python3
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import argparse
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import logging
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import os
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import os.path
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import sys
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import time
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import traceback
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sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
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import mango # nopep8
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# We explicitly want argument parsing to be outside the main try-except block because some arguments
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# (like --help) will cause an exit, which our except: block traps.
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parser = argparse.ArgumentParser(
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description="Run a single pass of the liquidator for a Mango Markets group."
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)
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mango.ContextBuilder.add_command_line_parameters(parser)
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mango.Wallet.add_command_line_parameters(parser)
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parser.add_argument(
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"--notify-liquidations",
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type=mango.parse_notification_target,
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action="append",
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default=[],
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help="The notification target for liquidation events",
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)
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parser.add_argument(
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"--notify-successful-liquidations",
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type=mango.parse_notification_target,
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action="append",
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default=[],
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help="The notification target for successful liquidation events",
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)
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parser.add_argument(
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"--notify-failed-liquidations",
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type=mango.parse_notification_target,
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action="append",
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default=[],
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help="The notification target for failed liquidation events",
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)
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parser.add_argument(
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"--notify-errors",
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type=mango.parse_notification_target,
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action="append",
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default=[],
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help="The notification target for error events",
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)
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parser.add_argument(
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"--dry-run",
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action="store_true",
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default=False,
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help="runs as read-only and does not perform any transactions",
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)
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args: argparse.Namespace = mango.parse_args(parser)
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handler = mango.NotificationHandler(
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mango.CompoundNotificationTarget(args.notify_errors)
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)
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handler.setLevel(logging.ERROR)
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logging.getLogger().addHandler(handler)
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try:
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context = mango.ContextBuilder.from_command_line_parameters(args)
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wallet = mango.Wallet.from_command_line_parameters_or_raise(args)
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liquidator_name = args.name
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logging.info(f"Wallet address: {wallet.address}")
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group = mango.Group.load(context)
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logging.info("Checking wallet accounts.")
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scout = mango.AccountScout()
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report = scout.verify_account_prepared_for_group(context, group, wallet.address)
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logging.info(f"Wallet account report: {report}")
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if report.has_errors:
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raise Exception(
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f"Account '{wallet.address}' is not prepared for group '{group.address}'."
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)
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logging.info("Wallet accounts OK.")
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liquidations_publisher = mango.EventSource[mango.LiquidationEvent]()
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liquidations_publisher.subscribe(
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on_next=mango.CompoundNotificationTarget(args.notify_liquidations).send
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) # type: ignore[call-arg]
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on_success = mango.FilteringNotificationTarget(
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mango.CompoundNotificationTarget(args.notify_successful_liquidations),
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lambda item: isinstance(item, mango.LiquidationEvent) and item.succeeded,
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)
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liquidations_publisher.subscribe(on_next=on_success.send) # type: ignore[call-arg]
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on_failed = mango.FilteringNotificationTarget(
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mango.CompoundNotificationTarget(args.notify_failed_liquidations),
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lambda item: isinstance(item, mango.LiquidationEvent) and not item.succeeded,
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)
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liquidations_publisher.subscribe(on_next=on_failed.send) # type: ignore[call-arg]
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# TODO: Add proper liquidator classes here when they're written for V3
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if args.dry_run:
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account_liquidator: mango.AccountLiquidator = mango.NullAccountLiquidator()
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else:
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account_liquidator = mango.NullAccountLiquidator()
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wallet_balancer = mango.NullWalletBalancer()
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liquidation_processor = mango.LiquidationProcessor(
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context, liquidator_name, account_liquidator, wallet_balancer
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)
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started_at = time.time()
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liquidation_processor.update_accounts([])
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group = mango.Group.load(context) # Refresh group data
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# prices = group.fetch_token_prices(context)
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liquidation_processor.update_prices(group, [])
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time_taken = time.time() - started_at
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logging.info(
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f"Check of all margin accounts complete. Time taken: {time_taken:.2f} seconds."
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)
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except Exception as exception:
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logging.critical(
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f"Liquidator stopped because of exception: {exception} - {traceback.format_exc()}"
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)
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except:
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logging.critical(
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f"Liquidator stopped because of uncatchable error: {traceback.format_exc()}"
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)
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finally:
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logging.info("Liquidator completed.")
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