const { DataTypes } = require('sequelize');
const { sequelize } = require('../db');

const generateRecordId = () => {
  return `OPLOG_${Date.now().toString(36)}_${Math.random().toString(36).substr(2, 9)}`;
};

const OperationLog = sequelize.define(
  'OperationLog',
  {
    recordId: {
      type: DataTypes.STRING,
      primaryKey: true,
      allowNull: false,
      unique: true,
    },
    module: {
      type: DataTypes.STRING,
      allowNull: false,
      comment: '模块：device/user/role/consumable/rack/room',
    },
    operationType: {
      type: DataTypes.STRING,
      allowNull: false,
      comment:
        '操作类型: create/update/delete/batch_delete/batch_update/status_change/move/permission_change',
    },
    operationDescription: {
      type: DataTypes.TEXT,
      comment: '操作描述',
    },
    targetId: {
      type: DataTypes.STRING,
      comment: '目标对象ID',
    },
    targetName: {
      type: DataTypes.STRING,
      comment: '目标对象名称（冗余便于展示）',
    },
    operatorId: {
      type: DataTypes.STRING,
      allowNull: false,
      comment: '操作人ID',
    },
    operatorName: {
      type: DataTypes.STRING,
      allowNull: false,
      comment: '操作人姓名',
    },
    operatorRole: {
      type: DataTypes.STRING,
      comment: '操作人角色',
    },
    beforeState: {
      type: DataTypes.JSON,
      comment: '操作前状态',
    },
    afterState: {
      type: DataTypes.JSON,
      comment: '操作后状态',
    },
    result: {
      type: DataTypes.STRING,
      defaultValue: 'success',
      comment: '操作结果: success/failed',
    },
    ipAddress: {
      type: DataTypes.STRING,
      comment: 'IP地址',
    },
    userAgent: {
      type: DataTypes.STRING,
      comment: '用户代理',
    },
    metadata: {
      type: DataTypes.JSON,
      defaultValue: {},
      comment: '扩展字段',
    },
  },
  {
    tableName: 'operation_logs',
    timestamps: true,
    indexes: [
      { fields: ['module'] },
      { fields: ['operationType'] },
      { fields: ['targetId'] },
      { fields: ['operatorId'] },
      { fields: ['createdAt'] },
    ],
  }
);

module.exports = OperationLog;