"""Routes for quantitative analysis: risk metrics, CAPM, normality, unit root."""

from fastapi import APIRouter, Path, Query

from models import ApiResponse
from route_utils import safe, validate_symbol
import quantitative_service

router = APIRouter(prefix="/api/v1")


@router.get("/stock/{symbol}/performance", response_model=ApiResponse)
@safe
async def stock_performance(
    symbol: str = Path(..., min_length=1, max_length=20),
    days: int = Query(default=365, ge=30, le=3650),
):
    """Performance metrics: Sharpe, Sortino, max drawdown, volatility."""
    symbol = validate_symbol(symbol)
    data = await quantitative_service.get_performance_metrics(symbol, days=days)
    return ApiResponse(data=data)


@router.get("/stock/{symbol}/capm", response_model=ApiResponse)
@safe
async def stock_capm(symbol: str = Path(..., min_length=1, max_length=20)):
    """CAPM: beta, alpha, systematic and idiosyncratic risk."""
    symbol = validate_symbol(symbol)
    data = await quantitative_service.get_capm(symbol)
    return ApiResponse(data=data)


@router.get("/stock/{symbol}/normality", response_model=ApiResponse)
@safe
async def stock_normality(
    symbol: str = Path(..., min_length=1, max_length=20),
    days: int = Query(default=365, ge=30, le=3650),
):
    """Normality tests: Jarque-Bera, Shapiro-Wilk on returns."""
    symbol = validate_symbol(symbol)
    data = await quantitative_service.get_normality_test(symbol, days=days)
    return ApiResponse(data=data)


@router.get("/stock/{symbol}/unitroot", response_model=ApiResponse)
@safe
async def stock_unitroot(
    symbol: str = Path(..., min_length=1, max_length=20),
    days: int = Query(default=365, ge=30, le=3650),
):
    """Unit root tests: ADF, KPSS for stationarity."""
    symbol = validate_symbol(symbol)
    data = await quantitative_service.get_unitroot_test(symbol, days=days)
    return ApiResponse(data=data)