import uuid
from sqlalchemy import Column, String, Boolean, Text, TIMESTAMP, UniqueConstraint
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.sql import func
from app.db.engine import Base


class MstrDepartment(Base):
    __tablename__ = "mstr_department"

    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    name = Column(String(100), nullable=False)
    code = Column(String(50), nullable=False)
    description = Column(Text, nullable=True)
    llm_system_prompt = Column(Text, nullable=False)
    llm_summary_prompt = Column(Text, nullable=False)
    is_active = Column(Boolean, nullable=False, default=True)
    created_at = Column(TIMESTAMP(timezone=True), server_default=func.now(), nullable=False)

    __table_args__ = (
        UniqueConstraint("name", "code", name="uq_dept_name_code"),
    )