"""
@model SettingModel (Backend/app/models/SettingModel.py)
@purpose Robust key-value setting model for system configuration across Core, Storefront, Shipping, and Repair domains.
"""
from sqlalchemy import Column, String, Boolean, JSON
from app.models.db_base import Base
from app.models.audit_base import AuditBaseMixin

class Setting(Base, AuditBaseMixin):
    __tablename__ = "settings"

    setting_id = Column(String(36), primary_key=True, index=True)
    setting_key = Column(String(128), unique=True, index=True, nullable=False)
    group = Column(String(64), nullable=False, default="storefront", index=True)
    type = Column(String(32), nullable=False, default="string")
    setting_value = Column(JSON, nullable=False)
    description = Column(String(500), nullable=True)
    is_public = Column(Boolean, default=True, nullable=False, index=True)
    is_editable = Column(Boolean, default=True, nullable=False)
    validation_rule = Column(String(255), nullable=True)