from typing import List, Optional
from pydantic import BaseModel, Field, ConfigDict
from datetime import datetime
from bson import ObjectId


class Environment(BaseModel):
    id: Optional[str] = Field(None, alias="_id")
    character_id: str
    name: str = Field(..., min_length=1)
    description: Optional[str] = None
    asset_ids: List[str] = Field(default_factory=list)
    created_at: datetime = Field(default_factory=datetime.utcnow)
    updated_at: datetime = Field(default_factory=datetime.utcnow)

    model_config = ConfigDict(
        populate_by_name=True,
        json_encoders={ObjectId: str},
        arbitrary_types_allowed=True
    )