"use strict";

import mongoose from "mongoose";

/**
 * Employee Schema
 * 员工/人员信息，支持陪诊员、护士、医生、管理员等角色
 */
const EmployeeSchema = mongoose.Schema(
  {
    // 基础信息
    name: { type: String, required: true, comment: "姓名" },
    employeeNo: { type: String, default: "", unique: true, sparse: true, comment: "工号" },

    // 登录账号（关联用户体系）
    userId: {
      type: mongoose.Schema.Types.ObjectId,
      ref: "user",
      index: true,
      comment: "关联用户ID",
    },

    // 所属机构
    orgId: {
      type: mongoose.Schema.Types.ObjectId,
      ref: "organization",
      index: true,
      comment: "所属机构ID",
    },

    // 角色/岗位
    role: {
      type: String,
      enum: ["attendant", "nurse", "doctor", "admin", "operator", "other"],
      default: "attendant",
      comment: "角色：陪诊员、护士、医生、管理员、运营、其他",
    },

    // 个人信息
    profile: {
      sex: { type: String, enum: ["male", "female", "other", ""], default: "", comment: "性别" },
      birthday: { type: Date, comment: "出生日期" },
      idNumber: { type: String, default: "", comment: "身份证号" },
      phone: { type: String, default: "", comment: "手机号" },
      email: { type: String, default: "", comment: "邮箱" },
      avatar: { type: String, default: "", comment: "头像URL" },
    },

    // 工作信息
    work: {
      department: { type: String, default: "", comment: "所属科室/部门" },
      title: { type: String, default: "", comment: "职称/头衔" },
      entryDate: { type: Date, comment: "入职日期" },
      workYears: { type: Number, default: 0, comment: "工作年限" },
      qualification: { type: String, default: "", comment: "资质证书编号" },
    },

    // 陪诊员特有信息
    attendantInfo: {
      serviceAreas: { type: [String], default: [], comment: "服务区域/城市列表" },
      specialties: { type: [String], default: [], comment: "擅长科室/领域" },
      languages: { type: [String], default: ["普通话"], comment: "掌握语言" },
      rating: { type: Number, default: 5.0, min: 1, max: 5, comment: "评分（1-5）" },
      orderCount: { type: Number, default: 0, comment: "接单数量" },
      isOnline: { type: Boolean, default: false, comment: "是否在线" },
    },

    // 紧急联系人
    emergencyContact: {
      name: { type: String, default: "", comment: "紧急联系人姓名" },
      phone: { type: String, default: "", comment: "紧急联系人电话" },
      relation: { type: String, default: "", comment: "关系" },
    },

    // 状态
    status: {
      type: String,
      enum: ["active", "inactive", "resigned", "suspended"],
      default: "active",
      comment: "状态：在职、停用、离职、暂停",
    },

    // 简介/备注
    introduction: { type: String, default: "", comment: "个人简介" },
    remark: { type: String, default: "", comment: "备注" },

    // 元数据
    meta: {
      createtime: { type: Date, default: Date.now, comment: "创建时间" },
      updatetime: { type: Date, default: Date.now, comment: "更新时间" },
    },
  },
  {
    minimize: false,
    strict: false,
    collection: "employee",
    timestamps: false,
  }
);

// ==================== 静态方法 ====================

/**
 * 根据机构ID查询员工列表
 */
EmployeeSchema.statics.findByOrg = async function (orgId, options = {}) {
  const { page = 1, pageSize = 20, role, status } = options;
  const filter = { orgId };
  if (role) filter.role = role;
  if (status) filter.status = status;
  const skip = (page - 1) * pageSize;
  return await this.find(filter)
    .skip(skip)
    .limit(pageSize)
    .exec();
};

/**
 * 根据角色查询员工
 */
EmployeeSchema.statics.findByRole = async function (role, options = {}) {
  const { page = 1, pageSize = 20, status = "active" } = options;
  const filter = { role };
  if (status) filter.status = status;
  const skip = (page - 1) * pageSize;
  return await this.find(filter)
    .skip(skip)
    .limit(pageSize)
    .exec();
};

/**
 * 根据用户ID查找员工
 */
EmployeeSchema.statics.findByUserId = async function (userId) {
  return await this.findOne({ userId }).exec();
};

/**
 * 根据ID查找员工
 */
EmployeeSchema.statics.findByEmployeeId = async function (id) {
  return await this.findById(id).exec();
};

/**
 * 创建员工
 */
EmployeeSchema.statics.createEmployee = async function (data) {
  data.meta = { createtime: Date.now(), updatetime: Date.now() };
  const doc = new this(data);
  return await doc.save();
};

/**
 * 更新员工
 */
EmployeeSchema.statics.updateEmployee = async function (id, update) {
  update["meta.updatetime"] = Date.now();
  return await this.findByIdAndUpdate(id, { $set: update }, { new: true }).exec();
};

/**
 * 查询在线陪诊员列表
 */
EmployeeSchema.statics.findOnlineAttendants = async function (options = {}) {
  const { page = 1, pageSize = 20 } = options;
  const skip = (page - 1) * pageSize;
  return await this.find({
    role: "attendant",
    status: "active",
    "attendantInfo.isOnline": true,
  })
    .sort({ "attendantInfo.rating": -1 })
    .skip(skip)
    .limit(pageSize)
    .exec();
};

// ==================== 索引定义 ====================

EmployeeSchema.index({ name: 1 });
EmployeeSchema.index({ employeeNo: 1 });
EmployeeSchema.index({ userId: 1 });
EmployeeSchema.index({ orgId: 1, role: 1, status: 1 });
EmployeeSchema.index({ role: 1, status: 1 });
EmployeeSchema.index({ "profile.phone": 1 });
EmployeeSchema.index({ status: 1 });

export { EmployeeSchema };