/* v41 (2026-09-18, P0-16): 手机端"忘记密码"接入图形验证码防刷
   - 新增图形验证码（SVG，后端 /api/account-service/captcha 下发，一次性）
   - 原有捕获阶段拦截 #show-forgot-password 的逻辑保持不变 */
(function () {
  'use strict';
  if (window.__mobV41) return; window.__mobV41 = true;

  var API = 'https://api-gateway.duoweiying.cn';
  var capId = '';

  function el(id) { return document.getElementById(id); }
  function msg(t) { var m = el('v40Msg'); if (m) m.textContent = t; }

  function loadCaptcha() {
    var box = el('v40CapImg');
    if (!box) return;
    box.textContent = '加载中…';
    fetch(API + '/api/account-service/captcha')
      .then(function (r) { return r.json(); })
      .then(function (j) {
        if (j && j.success && j.data && j.data.svg) {
          capId = j.data.captcha_id;
          box.innerHTML = j.data.svg;
          var s = box.querySelector('svg');
          if (s) { s.style.width = '110px'; s.style.height = '42px'; }
        } else { box.textContent = '点击重试'; }
      })
      .catch(function () { box.textContent = '点击重试'; });
  }

  function inject() {
    var send = el('v40Send');
    if (!send || el('v40Cap')) return false;
    var row = document.createElement('div');
    row.style.cssText = 'display:flex;gap:8px;align-items:center;margin-bottom:10px;';
    row.innerHTML =
      '<input id="v40Cap" inputmode="numeric" style="flex:1;min-width:0;box-sizing:border-box;border:1px solid #e2e8f0;border-radius:10px;padding:10px;font-size:14px;" placeholder="图形验证码（计算结果）">' +
      '<div id="v40CapImg" style="cursor:pointer;border:1px solid #e2e8f0;border-radius:8px;width:110px;height:42px;flex:none;display:flex;align-items:center;justify-content:center;background:#f8fafc;font-size:11px;color:#94a3b8;">点击加载</div>';
    send.parentNode.insertBefore(row, send);
    el('v40CapImg').onclick = loadCaptcha;
    loadCaptcha();
    return true;
  }

  /* 覆盖 v40 的发送逻辑：先校验图形验证码再提交 */
  function hook() {
    var send = el('v40Send');
    if (!send || send._v41) return false;
    send._v41 = true;
    var clone = send.cloneNode(true);
    send.parentNode.replaceChild(clone, send);
    clone.onclick = function () {
      var acct = (el('v40Acct').value || '').trim();
      var cap = (el('v40Cap').value || '').trim();
      if (!acct) { msg('请输入手机号或用户名'); return; }
      if (!cap) { msg('请先填写右侧图形验证码的计算结果'); return; }
      msg('发送中…');
      fetch(API + '/api/account-service/send-code', {
        method: 'POST', headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ account: acct, captcha_id: capId, captcha_code: cap })
      }).then(function (r) { return r.json(); }).then(function (j) {
        if (j && j.success) {
          var s2 = el('v40Step2'); if (s2) s2.style.display = 'block';
          msg('📨 验证码已下发到您的通知中心，请到「我的 → 消息通知」查看（10 分钟内有效）');
        } else {
          msg('发送失败：' + ((j && (j.message || j.detail)) || '请稍后重试'));
          loadCaptcha();
          var c = el('v40Cap'); if (c) c.value = '';
        }
      }).catch(function () { msg('网络错误，请重试'); loadCaptcha(); });
    };
    return true;
  }

  var n = 0;
  var t = setInterval(function () {
    try { inject(); hook(); } catch (e) {}
    if (++n > 60) clearInterval(t);
  }, 300);
  document.addEventListener('DOMContentLoaded', function () { inject(); hook(); });
  console.log('[MobV41] 图形验证码接入就绪');
})();