mango-explorer/bin/serum-sell

#!/usr/bin/env python3

import argparse
import logging
import os
import os.path
import sys

from decimal import Decimal

sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..")))
import mango  # nopep8

# We explicitly want argument parsing to be outside the main try-except block because some arguments
# (like --help) will cause an exit, which our except: block traps.
parser = argparse.ArgumentParser(description="Sells an SPL token in a Serum market.")
mango.ContextBuilder.add_command_line_parameters(parser)
mango.Wallet.add_command_line_parameters(parser)
parser.add_argument(
    "--symbol", type=str, required=True, help="market symbol to buy (e.g. ETH/USDC)"
)
parser.add_argument(
    "--quantity", type=Decimal, required=True, help="quantity of token to buy"
)
parser.add_argument(
    "--adjustment-factor",
    type=Decimal,
    default=Decimal("0.05"),
    help="factor by which to adjust the SELL price (akin to maximum slippage)",
)
parser.add_argument(
    "--wait",
    action="store_true",
    default=False,
    help="wait until the transactions are confirmed",
)
parser.add_argument(
    "--dry-run",
    action="store_true",
    default=False,
    help="runs as read-only and does not perform any transactions",
)
args: argparse.Namespace = mango.parse_args(parser)

with mango.ContextBuilder.from_command_line_parameters(args) as context:
    wallet = mango.Wallet.from_command_line_parameters_or_raise(args)

    adjustment_factor = args.adjustment_factor

    logging.info(f"Wallet address: {wallet.address}")

    if args.dry_run:
        trade_executor: mango.TradeExecutor = mango.NullTradeExecutor()
    else:
        trade_executor = mango.ImmediateTradeExecutor(
            context, wallet, None, adjustment_factor
        )

    order = trade_executor.sell(args.symbol, args.quantity)
    logging.info(f"Sell completed for {order}")