"""
Pydantic models for API request/response validation
"""
from pydantic import BaseModel, field_validator
from typing import Optional


class SingleAssessment(BaseModel):
    """Model for single location vulnerability assessment request"""
    latitude: float
    longitude: float
    height: Optional[float] = 0.0
    basement: Optional[float] = 0.0

    @field_validator('latitude')
    @classmethod
    def check_lat(cls, v: float) -> float:
        if not -90 <= v <= 90:
            raise ValueError('Latitude must be between -90 and 90')
        return v

    @field_validator('longitude')
    @classmethod
    def check_lon(cls, v: float) -> float:
        if not -180 <= v <= 180:
            raise ValueError('Longitude must be between -180 and 180')
        return v

    @field_validator('basement')
    @classmethod
    def check_basement(cls, v: float) -> float:
        if v > 0:
            raise ValueError('Basement height must be 0 or negative (e.g., -1, -2, -3)')
        return v