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

const InventoryTask = sequelize.define('InventoryTask', {
  taskId: {
    type: DataTypes.STRING,
    primaryKey: true,
    allowNull: false,
    unique: true
  },
  planId: {
    type: DataTypes.STRING,
    allowNull: false
  },
  targetType: {
    type: DataTypes.STRING,
    allowNull: false,
    comment: 'room:机房, rack:机柜, device:设备'
  },
  targetId: {
    type: DataTypes.STRING,
    allowNull: false,
    comment: '目标ID（机房ID/机柜ID/设备ID）'
  },
  targetName: {
    type: DataTypes.STRING,
    allowNull: true,
    comment: '目标名称'
  },
  status: {
    type: DataTypes.STRING,
    defaultValue: 'pending',
    comment: 'pending:待执行, in_progress:进行中, completed:已完成, skipped:已跳过'
  },
  totalDevices: {
    type: DataTypes.INTEGER,
    defaultValue: 0,
    comment: '设备总数'
  },
  checkedDevices: {
    type: DataTypes.INTEGER,
    defaultValue: 0,
    comment: '已盘点设备数'
  },
  normalDevices: {
    type: DataTypes.INTEGER,
    defaultValue: 0,
    comment: '正常设备数'
  },
  abnormalDevices: {
    type: DataTypes.INTEGER,
    defaultValue: 0,
    comment: '异常设备数'
  },
  assignedTo: {
    type: DataTypes.STRING,
    allowNull: true
  },
  assignedAt: {
    type: DataTypes.DATE,
    allowNull: true
  },
  completedAt: {
    type: DataTypes.DATE,
    allowNull: true
  },
  remark: {
    type: DataTypes.TEXT,
    allowNull: true
  }
}, {
  tableName: 'inventory_tasks',
  timestamps: true,
  indexes: [
    { fields: ['planId'] },
    { fields: ['status'] },
    { fields: ['assignedTo'] }
  ]
});

module.exports = InventoryTask;