from app.config import Settings
from app.market.base import MarketDataSource
from app.market.replay import ReplaySource
from app.market.yahoo import YahooSource


def live_source(settings: Settings) -> MarketDataSource:
    if settings.live_source == "yahoo":
        return YahooSource(settings.yahoo_poll_seconds)
    if settings.live_source == "replay" and settings.replay_file:
        return ReplaySource(settings.replay_file)
    raise ValueError(f"Unsupported LIVE_SOURCE: {settings.live_source}")


def seed_source(settings: Settings) -> MarketDataSource | None:
    if settings.seed_source == "none":
        return None
    if settings.seed_source == "yahoo":
        return YahooSource(settings.yahoo_poll_seconds)
    if settings.seed_source == "replay" and settings.replay_file:
        return ReplaySource(settings.replay_file)
    raise ValueError(f"Unsupported SEED_SOURCE: {settings.seed_source}")