"use strict";

import mongoose from "mongoose";
import { pinyin } from "pinyin-pro";

/**
 * Organization Schema
 * 组织/机构基础信息，支持医院、诊所、体检中心等多种机构类型
 */
const OrganizationSchema = mongoose.Schema(
  {
    // 基础信息
    name: { type: String, required: true, index: true, comment: "机构名称" },
    shortName: { type: String, default: "", comment: "机构简称" },
    pinyin: { type: String, default: "", index: true, comment: "机构名称全拼（小写无分隔，用于搜索）" },
    pinyinFL: { type: String, default: "", index: true, comment: "机构名称拼音首字母（用于搜索）" },
    code: { type: String, unique: true, sparse: true, comment: "机构编码（不填时字段缺省，避免与 unique sparse 索引冲突）" },

    // 机构类型
    type: {
      type: String,
      enum: ["hospital", "clinic", "checkup_center", "other"],
      default: "hospital",
      comment: "机构类型：医院、诊所、体检中心、其他",
    },

    // 等级/性质
    level: {
      type: String,
      enum: ["三级甲等", "三级乙等", "二级甲等", "二级乙等", "一级", "未定级", ""],
      default: "",
      comment: "医院等级",
    },
    nature: {
      type: String,
      enum: ["public", "private", "joint", "other", ""],
      default: "",
      comment: "机构性质：公立、私立、合资、其他",
    },

    // 联系方式
    contact: {
      phone: { type: String, default: "", comment: "联系电话" },
      email: { type: String, default: "", comment: "联系邮箱" },
      website: { type: String, default: "", comment: "官方网站" },
    },

    // 地址信息
    address: {
      province: { type: String, default: "", comment: "省份" },
      city: { type: String, default: "", comment: "城市" },
      district: { type: String, default: "", comment: "区县" },
      detail: { type: String, default: "", comment: "详细地址" },
      longitude: { type: Number, default: 0, comment: "经度" },
      latitude: { type: Number, default: 0, comment: "纬度" },
    },

    // 状态
    status: {
      type: String,
      enum: ["active", "inactive", "suspended"],
      default: "active",
      comment: "机构状态：正常、停用、暂停",
    },

    // 简介/备注
    description: { type: String, default: "", comment: "机构简介" },
    remark: { type: String, default: "", comment: "备注" },

    // 就医信息（agent-first：少字段、大文本；由 AI 助手录入维护，供查询与看病指导）
    forAgent: {
      updatedAt: { type: Date, comment: "最近更新时间" },
      updatedBy: { type: String, default: "", comment: "最近更新人" },

      // 医院级总览：门诊时间、挂号渠道、缴费、医保、异地备案、交通停车，一个文本块全包含
      overview: { type: String, default: "", comment: "医院级信息全文（门诊/挂号/缴费/医保/交通）" },

      // 医院/导引照片
      photos: [{
        url: { type: String, default: "", comment: "图片链接" },
        caption: { type: String, default: "", comment: "说明（医院照片/导引照片 + 描述）" },
      }],

      // 科室：name 是锚点；detail 包含位置/电话/临床还是医技/就诊提示全文
      departments: [{
        name: { type: String, comment: "科室名称（锚点）" },
        detail: { type: String, default: "", comment: "科室信息全文（位置/电话/类型/就诊提示）" },
        photo: { type: String, default: "", comment: "科室位置导引照片链接" },
      }],

      // 医生：name+department 是锚点；detail 包含职称/擅长/号别/坐班停诊全文
      doctors: [{
        name: { type: String, comment: "医生姓名（锚点）" },
        department: { type: String, comment: "所属科室（锚点）" },
        detail: { type: String, default: "", comment: "医生信息全文（职称/擅长/号别/坐班停诊）" },
        photo: { type: String, default: "", comment: "医生照片链接" },
      }],

      // 场景指南：初诊/复诊/住院/检查须知/老人服务等，键为场景名，值为文本，结构自由演化
      guides: { type: mongoose.Schema.Types.Mixed, comment: "场景指南（键为场景名，值为文本）" },
    },

    // 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: "organization",
    timestamps: false,
  }
);

// ==================== 拼音生成 ====================

/**
 * 机构名称 → 全拼（小写、无分隔，如 "北京协和医院" → "beijingxieheyiyuan"）
 */
const genPinyin = (name) =>
  pinyin(String(name), { toneType: "none", nonZh: "consecutive" }).toLowerCase().replace(/[^a-z0-9]/g, "");

/**
 * 机构名称 → 拼音首字母（如 "北京协和医院" → "bjxyy"）
 */
const genPinyinFL = (name) =>
  pinyin(String(name), { pattern: "first", toneType: "none", nonZh: "consecutive" }).toLowerCase().replace(/[^a-z0-9]/g, "");

// 保存时自动生成/同步拼音字段
OrganizationSchema.pre("save", function (next) {
  if (!this.name) return next();
  if (this.isModified("name") || !this.pinyin || !this.pinyinFL) {
    this.pinyin = genPinyin(this.name);
    this.pinyinFL = genPinyinFL(this.name);
  }
  next();
});

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

/**
 * 根据名称/拼音/拼音首字母模糊查询机构
 */
OrganizationSchema.statics.findByName = async function (name, options = {}) {
  const { page = 1, pageSize = 20 } = options;
  const skip = (page - 1) * pageSize;
  const escaped = String(name).replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
  const re = { $regex: escaped, $options: "i" };
  return await this.find({ $or: [{ name: re }, { pinyin: re }, { pinyinFL: re }] })
    .skip(skip)
    .limit(pageSize)
    .exec();
};

/**
 * 根据城市查询机构列表
 */
OrganizationSchema.statics.findByCity = async function (city, options = {}) {
  const { page = 1, pageSize = 20 } = options;
  const skip = (page - 1) * pageSize;
  return await this.find({ "address.city": city })
    .skip(skip)
    .limit(pageSize)
    .exec();
};

/**
 * 根据ID查找机构
 */
OrganizationSchema.statics.findByOrgId = async function (id) {
  return await this.findById(id).exec();
};

/**
 * 创建机构
 */
OrganizationSchema.statics.createOrg = async function (data) {
  data.meta = { createtime: Date.now(), updatetime: Date.now() };
  const doc = new this(data);
  return await doc.save();
};

/**
 * 更新机构
 */
OrganizationSchema.statics.updateOrg = async function (id, update) {
  if (update.name) {
    update.pinyin = genPinyin(update.name);
    update.pinyinFL = genPinyinFL(update.name);
  }
  update["meta.updatetime"] = Date.now();
  return await this.findByIdAndUpdate(id, { $set: update }, { new: true }).exec();
};

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

OrganizationSchema.index({ name: 1 });
OrganizationSchema.index({ code: 1 });
OrganizationSchema.index({ type: 1, status: 1 });
OrganizationSchema.index({ "address.city": 1, "address.district": 1 });
OrganizationSchema.index({ status: 1 });

export { OrganizationSchema };