import uuid
from datetime import datetime, timezone

from sqlalchemy import String, DateTime
from sqlalchemy.orm import Mapped, mapped_column

from app.database import Base


class Account(Base):
    """用户账号表"""

    __tablename__ = "accounts"

    id: Mapped[str] = mapped_column(
        String(36), primary_key=True, default=lambda: str(uuid.uuid4())
    )
    username: Mapped[str] = mapped_column(String(32), unique=True, index=True, nullable=False)
    password_hash: Mapped[str] = mapped_column(String(128), nullable=False)
    nickname: Mapped[str] = mapped_column(String(32), nullable=False)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), default=lambda: datetime.now(timezone.utc)
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        default=lambda: datetime.now(timezone.utc),
        onupdate=lambda: datetime.now(timezone.utc),
    )