from pydantic import BaseModel, ConfigDict, Field


class IsoThreadBase(BaseModel):
    diameter_mm: float = Field(..., gt=0, description="Nominal diameter in mm")
    pitch_mm: float = Field(..., gt=0, description="Thread pitch in mm")
    depth_mm: float | None = Field(None, gt=0, description="Thread depth in mm")


class IsoThreadCreate(IsoThreadBase):
    pass


class IsoThreadUpdate(BaseModel):
    diameter_mm: float | None = Field(None, gt=0)
    pitch_mm: float | None = Field(None, gt=0)
    depth_mm: float | None = Field(None, gt=0)


class IsoThreadRead(IsoThreadBase):
    model_config = ConfigDict(from_attributes=True)

    id: int