from typing import Any, Literal

from pydantic import BaseModel, Field


class Point(BaseModel):
    lat: float = Field(ge=-90, le=90)
    lon: float = Field(ge=-180, le=180)


class AntennaPoint(Point):
    height_agl: float = Field(ge=0)


class TxPoint(AntennaPoint):
    power_dbm: float | None = None
    gain_dbi: float | None = None
    frequency_mhz: float | None = Field(default=None, gt=0)


class RxPoint(AntennaPoint):
    gain_dbi: float | None = None
    sensitivity_dbm: float | None = None


GeoJSON = dict[str, Any]
SurfaceKind = Literal["dtm", "dsm"]
OutputFormat = Literal["geotiff", "png", "geojson"]