from datetime import timezone, datetime
from typing import TYPE_CHECKING
from pydantic import AwareDatetime
from sqlalchemy_utc import UtcDateTime
from sqlmodel import SQLModel, Field, Relationship, Text, JSON, func
if TYPE_CHECKING:
    from appserver.apps.account.models import User

class Calendar(SQLModel, table=True):
    __tablename__ = "calendars"

    id: int = Field(default=None, primary_key=True)
    topics: list[str] = Field(sa_type=JSON, default_factory=list, description="게스트와 나눌 주제들")  # ①
    description: str = Field(sa_type=Text, description="게스트에게 보여 줄 설명")
    google_calendar_id: str = Field(max_length=1024, description="Google Calendar ID")

    created_at: AwareDatetime = Field(
        default=None,
        nullable=False,
        sa_type=UtcDateTime,
        sa_column_kwargs={
            "server_default": func.now(),
        },
    )
    updated_at: AwareDatetime = Field(
        default=None,
        nullable=False,
        sa_type=UtcDateTime,
        sa_column_kwargs={
            "server_default": func.now(),
            "onupdate": lambda: datetime.now(timezone.utc),
        },
    )