#!/usr/bin/env python3

import argparse
import os
import os.path
import sys


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

parser = argparse.ArgumentParser(
    description="Shows the current funding rates for a perp market in a Mango Markets Group.")
mango.ContextBuilder.add_command_line_parameters(parser)
parser.add_argument("--market", type=str, required=True, help="symbol of the market to look up, e.g. 'ETH-PERP'")
args: argparse.Namespace = mango.parse_args(parser)

context = mango.ContextBuilder.from_command_line_parameters(args)
group = mango.Group.load(context)

market = context.market_lookup.find_by_symbol(args.market)
if market is None:
    raise Exception(f"Could not find market {args.market}")

perp_market = mango.ensure_market_loaded(context, market)
if not isinstance(perp_market, mango.PerpMarket):
    raise Exception(f"Market {args.market} is not a perp market.")

mango.output(perp_market.fetch_funding(context))
