from datetime import datetime

from sqlalchemy.orm import DeclarativeBase
from sqlalchemy.orm import mapped_column, Mapped
from sqlalchemy import String, func

import ulid



class BaseModel(DeclarativeBase):
    pass


class UserAccount(BaseModel):
    __tablename__ = "user_account"

    id: Mapped[str] = mapped_column(String(26), primary_key=True, insert_default=ulid.new().str)
    username: Mapped[str] = mapped_column(String(20), unique=True)
    email: Mapped[str] = mapped_column(String, unique=True)
    password: Mapped[str] = mapped_column(String)
    updated_at: Mapped[datetime] = mapped_column(insert_default=func.now())
    created_at: Mapped[datetime] = mapped_column(server_onupdate=func.now())

    def __repr__(self):
        return f'UserAccount(username={self.username}, email={self.email})'

    def to_json(self) -> dict:
        return {
            'username': self.username,
            'email': self.email,
        }