from sqlalchemy import Column, Integer, String, Text, DateTime, ForeignKey
from sqlalchemy.sql import text
from database import Base

class OperationLog(Base):
    __tablename__ = "operation_logs"
    
    id = Column(Integer, primary_key=True, index=True, comment='主键ID')
    user_id = Column(Integer, nullable=False, server_default="0", comment='操作人ID')
    username = Column(String(50), nullable=False, server_default="", comment='操作人用户名')
    company_code = Column(String(50), nullable=False, server_default="", index=True, comment='操作所属公司编码')
    module = Column(String(50), nullable=False, server_default="", comment='操作模块（如：user, company, product等）')
    operation_type = Column(String(20), nullable=False, server_default="", comment='操作类型：add, edit, delete')
    operation_detail = Column(Text, nullable=False, default="", comment='操作详情')
    before_data = Column(Text, nullable=False, default="", comment='修改前的数据')
    after_data = Column(Text, nullable=False, default="", comment='修改后的数据')
    created_at = Column(DateTime(timezone=True), nullable=False, server_default=text('CURRENT_TIMESTAMP'), comment='操作时间')