"""Market price cache model for storing Yahoo Finance data."""
from sqlalchemy import Column, Integer, String, Numeric, DateTime, Index
from datetime import datetime

from app.database import Base


class MarketPrice(Base):
    """
    Cache table for market prices from Yahoo Finance.

    Stores the last fetched price for each symbol to reduce API calls.
    """

    __tablename__ = "market_prices"

    id = Column(Integer, primary_key=True, index=True)
    symbol = Column(String(20), unique=True, nullable=False, index=True)
    price = Column(Numeric(precision=20, scale=6), nullable=False)
    fetched_at = Column(DateTime, nullable=False, default=datetime.utcnow)
    source = Column(String(50), default="yahoo_finance")

    # Index for quick lookups by symbol and freshness checks
    __table_args__ = (
        Index('idx_symbol_fetched', 'symbol', 'fetched_at'),
    )

    def __repr__(self):
        return f"<MarketPrice(symbol={self.symbol}, price={self.price}, fetched_at={self.fetched_at})>"