from sqlalchemy import Column, Date, DateTime, ForeignKey, String, Text, Index, text
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.sql import func
from backend.app.db.base import Base


class DutyItem(Base):
    __tablename__ = "duty_items"
    __table_args__ = (Index("idx_duty_date", "date"),)

    id = Column(UUID(as_uuid=True), primary_key=True, server_default=text("gen_random_uuid()"))
    date = Column(Date, nullable=False)
    staff_id = Column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="RESTRICT"), nullable=False)
    duty_type = Column(String, nullable=False)
    contact = Column(String)
    note = Column(Text)
    created_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
    updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now(), nullable=False)