"""角色模型。"""
from sqlalchemy import Column, Integer, String, Text, Boolean, TIMESTAMP, func
from insurance.db.compat import db


class Role(db.Model):
    """角色表。"""
    __tablename__ = "insurance_roles"

    id = Column(Integer, primary_key=True, autoincrement=True)
    name = Column(String(64), unique=True, nullable=False, comment="角色名称")
    description = Column(String(256), default="", comment="角色描述")
    permissions = Column(Text, default="[]", comment="权限列表JSON")
    builtin = Column(Boolean, default=False, comment="是否内置角色")
    created_at = Column(TIMESTAMP, server_default=func.now())
    updated_at = Column(TIMESTAMP, server_default=func.now(), onupdate=func.now())

    def to_dict(self):
        import json
        return {
            "id": f"role-{self.id}",
            "name": self.name,
            "description": self.description,
            "permissions": json.loads(self.permissions) if self.permissions else [],
            "builtin": self.builtin,
            "created_at": str(self.created_at) if self.created_at else None,
        }