config.py

import os
from typing import Optional

class Config:
    BINANCE_API_KEY: Optional[str] = os.getenv('BINANCE_API_KEY', None)
    BINANCE_API_SECRET: Optional[str] = os.getenv('BINANCE_API_SECRET', None)
    
    DEFAULT_LIMIT = 500
    DEFAULT_TIMEFRAME = '1h'
    DEFAULT_SYMBOL = 'BTCUSDT'
    
    RSI_PERIOD = 14
    STOCH_RSI_PERIOD = 14
    SMA_SHORT_PERIOD = 20
    SMA_LONG_PERIOD = 50
    EMA_PERIOD = 20
    BOLLINGER_PERIOD = 20
    KDJ_PERIOD = 14
    VOLUME_PERIOD = 20
    
    RSI_OVERSOLD = 30
    RSI_OVERBOUGHT = 70
    STOCH_OVERSOLD = 20
    STOCH_OVERBOUGHT = 80
    
    DECIMAL_PLACES = 4
    PERCENTAGE_PLACES = 2
    
    @classmethod
    def get_api_credentials(cls) -> tuple:
        return cls.BINANCE_API_KEY, cls.BINANCE_API_SECRET
    
    @classmethod
    def set_api_credentials(cls, api_key: str, api_secret: str):
        cls.BINANCE_API_KEY = api_key
        cls.BINANCE_API_SECRET = api_secret
        os.environ['BINANCE_API_KEY'] = api_key
        os.environ['BINANCE_API_SECRET'] = api_secret