#!/usr/bin/env python3
"""
Reliable OKX credential loader.
Reads directly from ~/.bashrc file, bypassing env var quoting issues.

Usage:
    from okx_cred_loader import load_okx_creds, create_okx_exchange
    creds = load_okx_creds()
    exchange = create_okx_exchange(creds, default_type='swap')
"""
import re, os, ccxt


def load_okx_creds():
    """Load OKX credentials from ~/.bashrc, stripping quotes."""
    creds = {}
    bashrc = os.path.expanduser('~/.bashrc')
    with open(bashrc) as f:
        for line in f:
            m = re.match(r'export\s+(OKX_\w+)=(.*)', line.strip())
            if m:
                key, val = m.group(1), m.group(2).strip().strip('"').strip("'")
                creds[key] = val
    required = ['OKX_API_KEY', 'OKX_SECRET', 'OKX_PASSPHRASE']
    missing = [k for k in required if k not in creds]
    if missing:
        raise ValueError(f"Missing OKX creds in ~/.bashrc: {missing}")
    return creds


def create_okx_exchange(creds=None, default_type='swap'):
    """Create a configured ccxt.okx exchange instance."""
    if creds is None:
        creds = load_okx_creds()
    return ccxt.okx({
        'apiKey': creds['OKX_API_KEY'],
        'secret': creds['OKX_SECRET'],
        'password': creds['OKX_PASSPHRASE'],
        'proxies': {
            'http': 'http://127.0.0.1:7890',
            'https': 'http://127.0.0.1:7890',
        },
        'options': {'defaultType': default_type},
    })


if __name__ == '__main__':
    creds = load_okx_creds()
    print(f"OKX creds loaded: KEY={creds['OKX_API_KEY'][:8]}...")
    exchange = create_okx_exchange(creds)
    balance = exchange.fetch_balance()
    usdt = float(balance.get('USDT', {}).get('free', 0))
    print(f"USDT free: {usdt:.2f}")