"use strict";

import mongoose from "mongoose";

/**
 * HealthProfile Schema
 * 健康档案 - 记录患者的基本健康信息，内容保持简单
 */
const HealthProfileSchema = mongoose.Schema(
  {
    // 关联用户ID（可为空）
    userId: {
      type: mongoose.Schema.Types.ObjectId,
      ref: "user",
      index: { unique: false, sparse: true },
      comment: "所属用户ID",
    },

    // 患者信息
    profile: {
      name: { type: String, default: "", comment: "患者姓名" },
      mobile: { type: String, default: "", index: true, comment: "患者电话" },
      sex: { type: String, enum: ["male", "female", ""], default: "", comment: "性别" },
      age: { type: Number, default: 0, comment: "年龄" },
      idnumber: { type: String, default: "", comment: "身份证号" },
    },

    // 健康信息
    health: {
      height: { type: Number, default: 0, comment: "身高（cm）" },
      weight: { type: Number, default: 0, comment: "体重（kg）" },
      bloodType: { type: String, default: "", comment: "血型" },
      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: "health_profile",
    timestamps: false,
  }
);

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

/**
 * 根据用户ID查找健康档案
 */
HealthProfileSchema.statics.findByUserId = async function (userId) {
  return await this.findOne({ userId }).exec();
};

/**
 * 查询健康档案列表（支持分页与筛选）
 *
 * @param {Object} options - 查询选项
   * @param {number} [options.page=1] - 页码
   * @param {number} [options.pageSize=20] - 每页数量
   * @param {ObjectId} [options.userId] - 所属用户ID筛选（可选）
   * @param {string} [options.name] - 患者姓名模糊筛选（可选）
   * @param {string} [options.mobile] - 患者电话筛选（可选）
   * @param {string} [options.sortBy="createtime"] - 排序字段：createtime | updatetime（可选）
   * @returns {Promise<Object>} 返回 `{ list, total, page, pageSize }`
   */
  HealthProfileSchema.statics.findProfiles = async function (options = {}) {
    const { page = 1, pageSize = 20, userId, name, mobile, sortBy = "createtime" } = options;
    const filter = {};

    if (userId) {
      filter.userId = userId;
    }
    if (name) {
      filter["profile.name"] = { $regex: name, $options: "i" };
    }
    if (mobile) {
      filter["profile.mobile"] = mobile;
    }

    const sortField = sortBy === "updatetime" ? "meta.updatetime" : "meta.createtime";
    const skip = (page - 1) * pageSize;
    const [list, total] = await Promise.all([
      this.find(filter)
        .sort({ [sortField]: -1 })
      .skip(skip)
      .limit(pageSize)
      .exec(),
    this.countDocuments(filter).exec(),
  ]);

  return { list, total, page: parseInt(page), pageSize: parseInt(pageSize) };
};

/**
 * 根据ID查找健康档案
 */
HealthProfileSchema.statics.findProfileById = async function (id) {
  return await this.findById(id).exec();
};

/**
 * 创建健康档案
 */
HealthProfileSchema.statics.createProfile = async function (data) {
  data.meta = { createtime: Date.now(), updatetime: Date.now() };
  const doc = new this(data);
  return await doc.save();
};

/**
 * 根据ID更新健康档案
 */
HealthProfileSchema.statics.updateProfileById = async function (id, update) {
  update["meta.updatetime"] = Date.now();
  return await this.findByIdAndUpdate(id, { $set: update }, { new: true }).exec();
};

/**
 * 根据用户ID更新健康档案
 */
HealthProfileSchema.statics.updateProfile = async function (userId, update) {
  update["meta.updatetime"] = Date.now();
  return await this.findOneAndUpdate({ userId }, { $set: update }, { new: true }).exec();
};

/**
 * 根据ID删除健康档案
 */
HealthProfileSchema.statics.deleteProfileById = async function (id) {
  try {
    return await this.findByIdAndDelete(id).exec();
  } catch (error) {
    console.error("删除健康档案失败:", error);
    return null;
  }
};

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

HealthProfileSchema.index({ userId: 1 }, { sparse: true });
HealthProfileSchema.index({ "profile.mobile": 1 });

export { HealthProfileSchema };