import uuid
from datetime import datetime
from sqlalchemy import Column, String, DateTime, Text, ForeignKey, Index
from sqlalchemy.orm import relationship
from utils.utils import Base


class Systemconfiguration(Base):
    __tablename__ = "system_configurations"

    id = Column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
    key = Column(String(255), unique=True, nullable=False, index=True)
    value = Column(Text, nullable=False)
    data_type = Column(String(50), nullable=False)
    description = Column(Text, nullable=True)
    last_modified_date = Column(DateTime, nullable=False, default=datetime.utcnow, onupdate=datetime.utcnow)
    modified_by_user_id = Column(String(36), ForeignKey("users.id", ondelete="SET NULL"), nullable=True, index=True)
    created_at = Column(DateTime, default=datetime.utcnow, nullable=False)
    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow, nullable=False)

    modified_by_user = relationship("User", foreign_keys=[modified_by_user_id])

    __table_args__ = (
        Index("ix_system_configurations_key", "key"),
    )