/* ============================================================
 * 微信工作台 — 登录 / 在线检测 / 登出模块
 * 依赖：core.js（window.Core）、wx.js（window.WxN）
 * ============================================================ */
(function (global) {
  "use strict";

  var Core = global.Core;
  var WxN = global.WxN;
  var $ = function (sel, root) { return (root || document).querySelector(sel); };

  function state() { return WxN.state; }

  // 登录地区列表
  var REGION_LIST = [
    { id: "110000", name: "北京市" }, { id: "120000", name: "天津市" },
    { id: "130000", name: "河北省" }, { id: "140000", name: "山西省" },
    { id: "210000", name: "辽宁省" }, { id: "220000", name: "吉林省" },
    { id: "230000", name: "黑龙江省" }, { id: "310000", name: "上海市" },
    { id: "320000", name: "江苏省" }, { id: "330000", name: "浙江省" },
    { id: "340000", name: "安徽省" }, { id: "350000", name: "福建省" },
    { id: "360000", name: "江西省" }, { id: "370000", name: "山东省" },
    { id: "410000", name: "河南省" }, { id: "420000", name: "湖北省" },
    { id: "430000", name: "湖南省" }, { id: "440000", name: "广东省" },
    { id: "450000", name: "广西省" }, { id: "460000", name: "海南省" },
    { id: "500000", name: "重庆市" }, { id: "510000", name: "四川省" },
    { id: "520000", name: "贵州省" }, { id: "530000", name: "云南省" },
    { id: "540000", name: "西藏" }, { id: "610000", name: "陕西省" },
    { id: "620000", name: "甘肃省" }, { id: "630000", name: "青海省" },
    { id: "640000", name: "宁夏" }
  ];

  /* ==================== 登录卡片 ==================== */
  function renderLoginCard() {
    var s = state();
    var box = $("#wxLoginCard", s.container);
    var app = s.app;
    if ((!app || !app.appId) || s.qr) {
      var qr = s.qr;
      var qrImg = qr && qr.img
        ? '<img src="' + (qr.img.indexOf("data:") === 0 ? qr.img : "data:image/png;base64," + qr.img) + '" alt="微信登录二维码">'
        : '<div class="empty" style="padding:24px 0"><div class="big">▣</div>点击下方按钮获取登录二维码</div>';
      var statusText = "等待获取二维码";
      if (qr) {
        statusText = qr.status === 0 ? "请使用微信扫码" : qr.status === 1 ? "已扫码，请在手机上确认登录" : "登录成功";
        if (qr.expired) statusText = "二维码已过期，请重新获取";
      }
      box.innerHTML =
        '<div class="wx-login-card">' +
        '<div class="row mb-1"><span class="badge blue"><span class="dot live"></span>微信未登录</span></div>' +
        '<div class="wx-qr-box">' + qrImg + '<div class="qrs">' + statusText + "</div></div>" +
        '<button class="btn primary sm block" id="wxQrBtn">' + (qr ? "重新获取二维码" : "获取登录二维码") + "</button>" +
        "</div>";
      $("#wxQrBtn", box).onclick = getQrCode;
      return;
    }
    box.innerHTML =
      '<div class="wx-login-card">' +
      '<div class="wx-user-row">' +
      (app.headImgUrl
        ? '<img class="wx-avatar" src="' + Core.esc(app.headImgUrl) + '" alt="" onerror="this.style.display=\'none\'">'
        : '<div class="wx-avatar">' + Core.esc(Core.initial(app.nickName || app.wxid)) + "</div>") +
      '<div style="min-width:0;flex:1">' +
      '<div class="ci-name">' + Core.esc(app.nickName || "微信用户") + "</div>" +
      '<div class="ci-sub mono">' + Core.esc(app.wxid || app.appId) + "</div>" +
      "</div>" +
      (s.online
        ? '<span class="badge green"><span class="dot live"></span>在线</span>'
        : '<span class="badge red"><span class="dot"></span>离线</span>') +
      "</div>" +
      '<div class="row mt-1">' +
      '<button class="btn ghost sm" id="wxOnlineBtn">检测在线</button>' +
      '<button class="btn danger sm" id="wxLogoutBtn">退出登录</button>' +
      "</div>" +
      "</div>";
    $("#wxOnlineBtn", box).onclick = function () { checkOnline().then(function () { renderLoginCard(); }); };
    $("#wxLogoutBtn", box).onclick = doLogout;
  }

  /* ---------- 扫码登录 ---------- */
  function showRegionDialog() {
    return new Promise(function (resolve) {
      var optionsHtml = REGION_LIST.map(function (r) {
        return '<option value="' + r.id + '">' + Core.esc(r.name) + '</option>';
      }).join('');
      var m = Core.modal({
        title: '选择登录地区',
        body: '<div style="font-size:13px;line-height:1.8;margin-bottom:10px">请选择您当前所在的省市地区，用于微信登录接入。</div>' +
          '<div class="field"><label class="label">登录地区</label>' +
          '<select id="wx-region-select" class="select">' + optionsHtml + '</select></div>' +
          '<div class="fs-12 c-dim" style="line-height:1.8">' +
          '· 请选择最近的省市，若没有您的地区可自行采购 socks5 代理 IP<br>' +
          '· 平台代理仅做测试，长用建议自己采购独占代理</div>' +
          '<div id="wx-geo-hint" class="fs-12 c-dim" style="margin-top:6px"></div>',
        footer: '<button class="btn ghost rg-cancel">取消</button><button class="btn primary rg-ok">确认</button>'
      });
      $('.rg-cancel', m.root).onclick = function () { m.close(); resolve(null); };
      $('.rg-ok', m.root).onclick = function () {
        var regionId = $('#wx-region-select', m.root).value;
        m.close();
        resolve(regionId);
      };
      var geoHint = $('#wx-geo-hint', m.root);
      if (navigator.geolocation && geoHint) {
        geoHint.textContent = '正在尝试定位…';
        navigator.geolocation.getCurrentPosition(
          function (pos) {
            var lat = pos.coords.latitude;
            var lng = pos.coords.longitude;
            var guessed = guessRegionByCoords(lat, lng);
            if (guessed) {
              $('#wx-region-select', m.root).value = guessed;
              geoHint.innerHTML = '<span class="c-success">已自动定位到 ' + Core.esc(REGION_LIST.filter(function(r){return r.id===guessed;})[0].name) + '，可手动修改</span>';
            } else {
              geoHint.textContent = '定位成功但无法匹配地区，请手动选择';
            }
          },
          function () { geoHint.textContent = '无法获取定位，请手动选择地区'; },
          { timeout: 5000 }
        );
      }
    });
  }

  function guessRegionByCoords(lat, lng) {
    var coords = [
      { id: "110000", lat: 39.9, lng: 116.4 }, { id: "120000", lat: 39.1, lng: 117.2 },
      { id: "310000", lat: 31.2, lng: 121.5 }, { id: "440000", lat: 23.1, lng: 113.3 },
      { id: "330000", lat: 30.3, lng: 120.2 }, { id: "320000", lat: 32.1, lng: 118.8 },
      { id: "510000", lat: 30.6, lng: 104.1 }, { id: "420000", lat: 30.6, lng: 114.3 },
      { id: "430000", lat: 28.2, lng: 112.9 }, { id: "370000", lat: 36.7, lng: 117.0 },
      { id: "410000", lat: 34.8, lng: 113.7 }, { id: "130000", lat: 38.0, lng: 114.5 },
      { id: "210000", lat: 41.8, lng: 123.4 }, { id: "610000", lat: 34.3, lng: 108.9 },
      { id: "340000", lat: 31.8, lng: 117.3 }, { id: "350000", lat: 26.1, lng: 119.3 },
      { id: "360000", lat: 28.7, lng: 115.9 }, { id: "500000", lat: 29.6, lng: 106.5 },
      { id: "530000", lat: 25.0, lng: 102.7 }, { id: "520000", lat: 26.6, lng: 106.7 },
      { id: "450000", lat: 22.8, lng: 108.3 }, { id: "460000", lat: 20.0, lng: 110.3 },
      { id: "140000", lat: 37.9, lng: 112.5 }, { id: "220000", lat: 43.9, lng: 125.3 },
      { id: "230000", lat: 45.8, lng: 126.5 }, { id: "620000", lat: 36.1, lng: 103.8 },
      { id: "630000", lat: 36.6, lng: 101.8 }, { id: "640000", lat: 38.5, lng: 106.3 },
      { id: "540000", lat: 29.6, lng: 91.1 }
    ];
    var minDist = Infinity, matched = null;
    for (var i = 0; i < coords.length; i++) {
      var d = Math.pow(lat - coords[i].lat, 2) + Math.pow(lng - coords[i].lng, 2);
      if (d < minDist) { minDist = d; matched = coords[i].id; }
    }
    return matched;
  }

  function getQrCode() {
    stopLoginPolling();
    showRegionDialog().then(function (regionId) {
      if (!regionId) return;
      Core.loading(true, "正在获取登录二维码…");
      Core.wxApi("login/getLoginQrCode", { appId: "", regionId: regionId, type: "mac" })
        .then(function (data) {
          Core.loading(false);
          if (!data || !data.uuid) { Core.toast("获取二维码失败", "err"); return; }
          state().qr = { uuid: data.uuid, img: data.qrImgBase64, status: 0, expired: false, appId: data.appId || "", regionId: regionId };
          // 将接口返回的 appId 更新到销售的 wx_device_id
          var hashMatch = (location.hash || '').match(/wx-advicer=(\d+)/);
          var advicerId = hashMatch ? Number(hashMatch[1]) : 0;
          if (data.appId && advicerId) {
            Core.api("advicer/wx_device/update", { advicerId: advicerId, wxDeviceId: data.appId })
              .then(function () { console.log("[getQrCode] wx_device_id updated: " + data.appId); })
              .catch(function (e) { console.warn("[getQrCode] update wx_device_id failed:", e); });
          }
          renderLoginCard();
          startLoginPolling();
        })
        .catch(function (e) { Core.loading(false); Core.toast("获取二维码失败：" + e.message, "err"); });
    });
  }

  function startLoginPolling() {
    stopLoginPolling();
    var s = state();
    s.loginTimer = setInterval(function () {
      s = state();
      if (!s || !s.qr) return;
      Core.wxApi("login/checkLogin", {
        appId: s.qr.appId || "", uuid: s.qr.uuid,
        autoSliding: true, proxyIp: "", captchCode: ""
      }).then(function (data) {
        if (!data) return;
        if (s.qr) {
          s.qr.status = data.status;
          if (typeof data.expiredTime === "number" && data.status !== 2 && data.expiredTime <= 0) {
            s.qr.expired = true;
          }
        }
        if (data.status === 2) {
          stopLoginPolling();
          var app = {
            appId: s.qr.appId || "",
            wxid: data.loginInfo ? data.loginInfo.wxid : "",
            nickName: data.nickName || (data.loginInfo && data.loginInfo.nickName) || "",
            headImgUrl: data.headImgUrl || ""
          };
          s.app = app;
          Core.store(Core.KEYS.wxApp, app);
          s.qr = null;
          Core.toast("微信登录成功：" + (app.nickName || app.wxid), "ok");
          renderLoginCard();
          checkOnlineLoop();
          WxN.loadProfile().then(function () { WxN.loadConversations(); });
          WxN.loadContacts();
        } else {
          renderLoginCard();
        }
      }).catch(function () { });
    }, 10000);
  }

  function stopLoginPolling() {
    var s = state();
    if (s && s.loginTimer) { clearInterval(s.loginTimer); s.loginTimer = null; }
  }

  function checkOnlineLoop() {
    WxN.connectWs();
    checkOnline();
  }

  function checkOnline() {
    var s = state();
    if (!s || !s.app || !s.app.appId) {
      console.log("[checkOnline] skipped: state=" + !!s + ", app=" + (s && s.app ? s.app.appId : "null"));
      return Promise.resolve(false);
    }
    console.log("[checkOnline] calling with appId=" + s.app.appId);
    return Core.wxApi("login/checkOnline", { appId: s.app.appId })
      .then(function (v) {
        s.online = v === true;
        renderLoginCard();
        return s.online;
      })
      .catch(function () {
        state().online = false;
        renderLoginCard();
        return false;
      });
  }

  function resetToOffline() {
    WxN.disconnectWs();
    var s = state();
    s.app = null;
    s.online = false;
    s.contacts = { friends: [], chatrooms: [], ghs: [] };
    s.conversations = [];
    s.convMsgs = {};
    s.brief = {};
    s.msgs = {};
    s.active = null;
    Core.store(Core.KEYS.wxApp, null);
    if (location.hash) history.replaceState(null, '', location.pathname + location.search);
    WxN.clearBriefCache();
    renderLoginCard();
    WxN.renderContacts();
    WxN.renderChat();
  }

  /* ---------- 在线状态 WebSocket 事件 ---------- */
  function handleOnlineStatus(data) {
    if (!data) return;
    var s = state();
    var wasOnline = s.online;
    s.online = data.online === true;
    if (!s.online && wasOnline) {
      Core.toast("微信已离线", "warn");
      renderLoginCard();
    } else if (s.online && !wasOnline) {
      Core.toast("微信已恢复在线", "ok");
      renderLoginCard();
    } else {
      renderLoginCard();
    }
  }

  function doLogout() {
    var s = state();
    Core.confirm("确定退出微信登录？退出后需重新扫码。").then(function (ok) {
      if (!ok) return;
      Core.wxApi("login/logout", { appId: state().app.appId })
        .then(function () {
          Core.toast("已退出微信登录", "ok");
          resetToOffline();
        })
        .catch(function (e) {
          Core.wxApi("login/checkOnline", { appId: state().app.appId })
            .then(function (online) {
              if (online !== true) {
                Core.toast("微信已离线，自动回到未登录状态", "warn");
                resetToOffline();
              } else {
                Core.toast("退出登录失败：" + e.message, "err");
              }
            })
            .catch(function () { Core.toast("退出登录失败：" + e.message, "err"); });
        });
    });
  }

  /* ---------- 消息回调设置 ---------- */
  function openCallbackDialog() {
    Core.loading(true, "获取回调配置…");
    Core.api("wx/callback/info", {}).then(function (info) {
      Core.loading(false);
      var suggested = (info && info.callbackUrl) || (location.origin + "/api/v1/advicer/wx/callback");
      var m = Core.modal({
        title: "设置消息回调",
        body:
          '<div class="field"><label class="label">回调地址<span class="req">*</span></label>' +
          '<input id="wcb-url" class="input mono" value="' + Core.esc(suggested) + '"></div>' +
          '<div class="fs-12 c-dim" style="line-height:1.9">' +
          "· 需为公网可访问地址，微信协议服务会把客户与销售的消息推送到该地址；<br>" +
          "· 配置成功后消息自动入库，用于客户画像迭代、每晚等级评估与 AI 主动对话；<br>" +
          "· 若服务器部署在反向代理后，请把域名替换为实际公网访问地址。" +
          "</div>",
        footer: '<button class="btn ghost mf-cancel">取消</button><button class="btn primary mf-save">保存并生效</button>'
      });
      $(".mf-cancel", m.root).onclick = m.close;
      $(".mf-save", m.root).onclick = function () {
        var url = $("#wcb-url", m.root).value.trim();
        if (!url) { Core.toast("请输入回调地址", "err"); return; }
        Core.loading(true, "正在设置回调…");
        Core.api("wx/callback/set", { appId: (state().app && state().app.appId) || "", callbackUrl: url })
          .then(function () { Core.loading(false); m.close(); Core.toast("回调地址已设置并生效", "ok"); })
          .catch(function (e) { Core.loading(false); Core.toast("设置失败：" + e.message, "err"); });
      };
    }).catch(function (e) { Core.loading(false); Core.toast(e.message, "err"); });
  }

  /* ==================== 导出 ==================== */
  WxN.renderLoginCard = renderLoginCard;
  WxN.getQrCode = getQrCode;
  WxN.checkOnline = checkOnline;
  WxN.checkOnlineLoop = checkOnlineLoop;
  WxN.resetToOffline = resetToOffline;
  WxN.handleOnlineStatus = handleOnlineStatus;
  WxN.doLogout = doLogout;
  WxN.openCallbackDialog = openCallbackDialog;
  WxN.stopLoginPolling = stopLoginPolling;

})(window);