#!/usr/bin/env python3

import argparse
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

parser = argparse.ArgumentParser(description="Withdraw funds from a Mango account")
mango.ContextBuilder.add_command_line_parameters(parser)
mango.Wallet.add_command_line_parameters(parser)
parser.add_argument("--symbol", type=str, required=True, help="token symbol to withdraw (e.g. USDC)")
parser.add_argument("--quantity", type=Decimal, required=True, help="quantity token to withdraw")
parser.add_argument("--account-index", type=int, default=0,
                    help="index of the account to use, if more than one available")
parser.add_argument("--allow-borrow", action="store_true", default=False,
                    help="allow borrowing to fund the withdrawal")
args: argparse.Namespace = mango.parse_args(parser)

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

group = mango.Group.load(context, context.group_address)
accounts = mango.Account.load_all_for_owner(context, wallet.address, group)
if len(accounts) == 0:
    raise Exception(f"Could not find any margin accounts for '{wallet.address}'.")
account = accounts[args.account_index]

token = context.token_lookup.find_by_symbol(args.symbol.upper())
if token is None:
    raise Exception(f"Could not find token with symbol '{args.symbol}'.")

token_account = mango.TokenAccount.fetch_or_create_largest_for_owner_and_token(context, wallet.keypair, token)
withdrawal_value = mango.TokenValue(token, args.quantity)
withdrawal_token_account = mango.TokenAccount(
    token_account.account_info, token_account.version, token_account.owner, withdrawal_value)


root_bank = None
for token_info in group.tokens:
    if token_info is not None and token_info.token is not None and token_info.token.mint == token.mint:
        root_bank = token_info.root_bank
if root_bank is None:
    raise Exception(f"Could not find token root bank for symbol '{args.symbol}'.")

node_bank = root_bank.pick_node_bank(context)

signers: mango.CombinableInstructions = mango.CombinableInstructions.from_wallet(wallet)
withdraw = mango.build_withdraw_instructions(
    context, wallet, group, account, root_bank, node_bank, withdrawal_token_account, args.allow_borrow)

all_instructions = signers + withdraw
transaction_ids = all_instructions.execute(context)
print("Transaction IDs:", transaction_ids)