import uuid
from datetime import datetime

from pydantic import BaseModel, Field, field_validator


class KioskDeviceCreate(BaseModel):
    name: str = Field(..., min_length=1, max_length=255)
    location: str | None = Field(None, max_length=255)

    @field_validator("name")
    @classmethod
    def name_not_blank(cls, v: str) -> str:
        if not v.strip():
            raise ValueError("Name darf nicht nur aus Leerzeichen bestehen.")
        return v.strip()


class KioskDeviceUpdate(BaseModel):
    name: str | None = Field(None, min_length=1, max_length=255)
    location: str | None = Field(None, max_length=255)

    @field_validator("name")
    @classmethod
    def name_not_blank(cls, v: str | None) -> str | None:
        if v is not None:
            if not v.strip():
                raise ValueError("Name darf nicht nur aus Leerzeichen bestehen.")
            return v.strip()
        return v
    is_active: bool | None = None


class KioskDeviceOut(BaseModel):
    model_config = {"from_attributes": True}

    id: uuid.UUID
    company_id: uuid.UUID
    name: str
    location: str | None
    is_active: bool
    last_seen_at: datetime | None
    created_at: datetime


class KioskDeviceCreated(KioskDeviceOut):
    """Wird nur einmalig bei Erstellung zurückgegeben – enthält den Klartext-Token."""
    token: str