"""
Exchange registry for supported exchanges.

This module contains the registry of supported exchanges and their capabilities,
separated to avoid circular import issues.
"""

# Exchange registry for factory pattern
EXCHANGE_REGISTRY = {
    'okx': {
        'collector': 'data.exchanges.okx.collector.OKXCollector',
        'websocket': 'data.exchanges.okx.websocket.OKXWebSocketClient',
        'name': 'OKX',
        'supported_pairs': ['BTC-USDT', 'ETH-USDT', 'SOL-USDT', 'DOGE-USDT', 'TON-USDT'],
        'supported_data_types': ['trade', 'orderbook', 'ticker', 'candles']
    }
}


def get_supported_exchanges():
    """Get list of supported exchange names."""
    return list(EXCHANGE_REGISTRY.keys())


def get_exchange_info(exchange_name: str):
    """Get information about a specific exchange."""
    return EXCHANGE_REGISTRY.get(exchange_name.lower())