/**
 * 统一小程序入口
 * 职责：初始化全局状态、从缓存恢复登录态、提供 checkLogin 和状态映射方法。
 */
var auth = require("./utils/auth");
var request = require("./utils/request");
var status = require("./utils/status");
var subscribe = require("./utils/subscribe");
var ws = require("./utils/websocket");

App({
  globalData: {
    apiBaseUrl: require("./config").apiBaseUrl,
    authToken: "",
    statusBarHeight: 0,
    navBarHeight: 0,
    userRole: "",
  },

  // 事件处理器存储
  _eventHandlers: {},

  onLaunch: function () {
    var windowInfo = wx.getWindowInfo();
    this.globalData.statusBarHeight = windowInfo.statusBarHeight || 20;
    this.globalData.navBarHeight = 44;

    var token = auth.getToken();
    if (token) {
      this.globalData.authToken = token;
      this.globalData.userRole = auth.getUserRole();
      this.loadSubscribeTemplateIds();
      // 已登录则建立 WebSocket 连接
      ws.connect();
    }
  },

  request: request,

  loadSubscribeTemplateIds: async function () {
    var configKeys = [
      "wechat_template_order_status",
      "wechat_template_approval",
      "wechat_template_task_assigned",
      "wechat_template_logistics_timeout",
      "wechat_template_arrears",
      "wechat_template_inactive_customer",
    ];

    try {
      var results = await Promise.all(
        configKeys.map(function (configKey) {
          return request({ url: "/api/configs/" + configKey, method: "GET" });
        })
      );
      subscribe.applyConfigItems(results);
    } catch (error) {
      console.warn("[Subscribe] 加载模板 ID 失败，继续使用本地默认值:", error.message || error);
    }
  },

  checkLogin: function () {
    if (!auth.isLoggedIn()) {
      wx.redirectTo({ url: "/pages/login/login" });
      return false;
    }
    return true;
  },

  /**
   * 注册事件监听
   */
  on: function (eventName, handler) {
    if (!this._eventHandlers[eventName]) {
      this._eventHandlers[eventName] = [];
    }
    this._eventHandlers[eventName].push(handler);
  },

  /**
   * 移除事件监听
   */
  off: function (eventName, handler) {
    if (!this._eventHandlers[eventName]) return;
    if (handler) {
      this._eventHandlers[eventName] = this._eventHandlers[eventName].filter(function (h) {
        return h !== handler;
      });
    } else {
      delete this._eventHandlers[eventName];
    }
  },

  /**
   * 建立 WebSocket 连接（登录后调用）
   */
  connectWebSocket: function () {
    ws.connect();
  },

  /**
   * 断开 WebSocket 连接（登出时调用）
   */
  disconnectWebSocket: function () {
    ws.disconnect();
  },

  mapTaskStatus: status.mapTaskStatus,
  mapOrderStatus: status.mapOrderStatus,
});