from fastapi import APIRouter

from app.schemas.numeric import NumericCheckItem
from app.schemas.numeric_request import DerivativeValidationRequest
from app.services.numeric_validator import validate_derivative

router = APIRouter(tags=["numeric"])


@router.post("/validate-numeric", response_model=NumericCheckItem)
async def validate_numeric(payload: DerivativeValidationRequest) -> NumericCheckItem:
    return validate_derivative(
        expression=payload.expression,
        expected_derivative=payload.expected_derivative,
        variable=payload.variable,
    )