from datetime import datetime

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

FILE_NAME_MAX_LENGTH = 450
FILE_PATH_MAX_LENGTH = 1000
FILE_EXTENSION_MAX_LENGTH = 100


class BaseModel(DeclarativeBase):
    created_at: Mapped[datetime] = mapped_column(
        TIMESTAMP(timezone=True), server_default=func.now()
    )
    updated_at: Mapped[datetime] = mapped_column(
        TIMESTAMP(timezone=True), server_default=func.now(), onupdate=func.now()
    )