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

const ConsumableLog = sequelize.define(
  'ConsumableLog',
  {
    id: {
      type: DataTypes.INTEGER,
      primaryKey: true,
      autoIncrement: true,
    },
    consumableId: {
      type: DataTypes.STRING,
      allowNull: false,
      comment: '耗材ID',
    },
    consumableName: {
      type: DataTypes.STRING,
      allowNull: false,
      comment: '耗材名称',
    },
    operationType: {
      type: DataTypes.ENUM('in', 'out', 'create', 'update', 'delete', 'adjust', 'import'),
      allowNull: false,
      comment: '操作类型',
    },
    quantity: {
      type: DataTypes.INTEGER,
      defaultValue: 0,
      comment: '变动数量（入库为正，出库为负）',
    },
    previousStock: {
      type: DataTypes.INTEGER,
      allowNull: false,
      comment: '操作前库存',
    },
    currentStock: {
      type: DataTypes.INTEGER,
      allowNull: false,
      comment: '操作后库存',
    },
    operator: {
      type: DataTypes.STRING,
      comment: '操作人',
    },
    reason: {
      type: DataTypes.STRING,
      comment: '操作原因',
    },
    notes: {
      type: DataTypes.TEXT,
      comment: '备注',
    },
    relatedId: {
      type: DataTypes.STRING,
      comment: '关联ID（如订单号、盘点ID等）',
    },
    isEditable: {
      type: DataTypes.BOOLEAN,
      defaultValue: true,
      comment: '是否可编辑（创建、导入的记录可编辑，系统生成的出入库记录不可编辑）',
    },
    originalLogId: {
      type: DataTypes.INTEGER,
      allowNull: true,
      comment: '原始日志ID（用于追踪修改历史链）',
    },
    modifiedBy: {
      type: DataTypes.STRING,
      allowNull: true,
      comment: '修改人',
    },
    modifiedAt: {
      type: DataTypes.DATE,
      allowNull: true,
      comment: '修改时间',
    },
    modificationReason: {
      type: DataTypes.STRING,
      allowNull: true,
      comment: '修改原因',
    },
    isConsumableDeleted: {
      type: DataTypes.BOOLEAN,
      defaultValue: false,
      comment: '关联耗材是否已被删除',
    },
    consumableSnapshot: {
      type: DataTypes.JSON,
      allowNull: true,
      comment: '耗材快照信息（分类、单位、供应商等），用于耗材删除后追溯',
    },
    snList: {
      type: DataTypes.JSON,
      allowNull: true,
      defaultValue: [],
      comment: '本次操作的SN序列号列表',
    },
    deviceId: {
      type: DataTypes.STRING,
      allowNull: true,
      comment: '目标设备ID（出库时关联）',
    },
    deviceName: {
      type: DataTypes.STRING,
      allowNull: true,
      comment: '目标设备名称',
    },
    rackId: {
      type: DataTypes.STRING,
      allowNull: true,
      comment: '机柜ID',
    },
    rackName: {
      type: DataTypes.STRING,
      allowNull: true,
      comment: '机柜名称',
    },
    roomId: {
      type: DataTypes.STRING,
      allowNull: true,
      comment: '机房ID',
    },
    roomName: {
      type: DataTypes.STRING,
      allowNull: true,
      comment: '机房名称',
    },
    lastNameSyncAt: {
      type: DataTypes.DATE,
      allowNull: true,
      comment: '名称最后同步时间（名称变更时更新）',
    },
  },
  {
    tableName: 'consumable_logs',
    timestamps: true,
    comment: '耗材操作日志表',
    indexes: [
      { fields: ['consumableId'] },
      { fields: ['operationType'] },
      { fields: ['createdAt'] },
      { fields: ['consumableId', 'createdAt'] },
      { fields: ['originalLogId'] },
      { fields: ['isEditable'] },
      { fields: ['isConsumableDeleted'] },
      { fields: ['deviceId'] },
    ],
  }
);

module.exports = ConsumableLog;