from pydantic import BaseModel, Field
from datetime import datetime
from typing import Optional

class ServerTimeBase(BaseModel):
    timezone: str = Field(default="UTC", description="Timezone for the server")

class ServerTimeCreate(ServerTimeBase):
    current_time: Optional[datetime] = Field(default_factory=datetime.now, description="Current server time")

    class Config:
        schema_extra = {
            "example": {
                "current_time": "2024-01-01T12:00:00",
                "timezone": "UTC"
            }
        }

class ServerTime(ServerTimeBase):
    current_time: datetime = Field(..., description="Current server time")

    class Config:
        orm_mode = True
        schema_extra = {
            "example": {
                "current_time": "2024-01-01T12:00:00",
                "timezone": "UTC"
            }
        }