import enum

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

from .engine import db
from .types import StringUUID


class DeptStatus(enum.StrEnum):
    ACTIVE = "active"
    CLOSED = "closed"


class Dept(db.Model):
    __tablename__ = "dept"
    __table_args__ = (
        db.PrimaryKeyConstraint("dept_id", name="dept_pkey"),
    )

    dept_id: Mapped[str] = mapped_column(StringUUID, server_default=db.text("uuid_generate_v4()"))
    dept_name = db.Column(db.String(255), nullable=False)
    parent_dept_id = db.Column(db.String(255))
    timezone = db.Column(db.String(255))
    status = db.Column(db.String(16), nullable=False, server_default=db.text("'active'::character varying"))
    created_at = db.Column(db.DateTime, nullable=False, server_default=func.current_timestamp())
    updated_at = db.Column(db.DateTime, nullable=False, server_default=func.current_timestamp())

    def get_status(self) -> DeptStatus:
        status_str = self.status
        return DeptStatus(status_str)