#!/usr/bin/env python3

import argparse
import os
import os.path
import sys

from decimal import Decimal
from solana.publickey import PublicKey

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

parser = argparse.ArgumentParser(
    description="Sends a notification if an account's SOL balance is below the '--minimum-sol-balance' parameter threshold."
)
mango.ContextBuilder.add_command_line_parameters(parser)
parser.add_argument(
    "--address", type=PublicKey, required=True, help="address of the account"
)
parser.add_argument(
    "--minimum-sol-balance",
    type=Decimal,
    default=Decimal("0.1"),
    help="the minimum SOL balance required for the alert. A SOL balance less than this value will trigger a nifitication.",
)
parser.add_argument(
    "--notify",
    type=mango.parse_notification_target,
    action="append",
    default=[],
    help="The notification target for low balance events",
)
args: argparse.Namespace = mango.parse_args(parser)

with mango.ContextBuilder.from_command_line_parameters(args) as context:
    account_info = mango.AccountInfo.load(context, args.address)
    if account_info is None:
        raise Exception(f"No account at '{args.address}'")

    if account_info.sols < args.minimum_sol_balance:
        notify: mango.NotificationTarget = mango.CompoundNotificationTarget(args.notify)
        report = f'Account "{args.name} [{args.address}]" on {context.client.cluster_name} has only {account_info.sols} SOL, which is below the minimum required balance of {args.minimum_sol_balance} SOL.'
        notify.send(report)
        mango.output(f"Notification sent: {report}")
