"""
Per-pair signal producers.

Each pair module exposes:
    make_config(primary_tf, confirmation_tfs) -> PlatformConfig

To add a new pair: create pair_signals/<pair>.py with make_config(),
then register it in this file.
"""

from typing import Optional, List, Dict, Callable

from config import PlatformConfig, Timeframe
from signal_aggregator import SignalAggregator, SignalReport
from data_provider import ForexDataProvider

PAIR_PRODUCERS: Dict[str, Callable] = {}


def register_pair(symbol: str, config_factory: Callable):
    PAIR_PRODUCERS[symbol] = config_factory


def get_supported_pairs() -> List[str]:
    return list(PAIR_PRODUCERS.keys())


def produce_signal(
    symbol: str,
    primary_tf: Timeframe,
    data_provider: ForexDataProvider,
    confirmation_tfs: Optional[List[Timeframe]] = None,
) -> SignalReport:
    config_factory = PAIR_PRODUCERS.get(symbol)
    if config_factory is None:
        raise ValueError(
            f"No signal producer registered for {symbol}. "
            f"Available: {list(PAIR_PRODUCERS.keys())}"
        )

    config = config_factory(primary_tf, confirmation_tfs)
    aggregator = SignalAggregator(config)
    aggregator.data_provider = data_provider
    return aggregator.analyze_pair(symbol=symbol)


from pair_signals import xauusd as _xau_mod
from pair_signals import eurusd as _eur_mod
from config import XAUUSD, EURUSD

register_pair(XAUUSD, _xau_mod.make_config)
register_pair(EURUSD, _eur_mod.make_config)