(function () {
  'use strict';

  function parseConfig(root) {
    try { return JSON.parse(root.getAttribute('data-identity-config') || '{}'); } catch (_) { return {}; }
  }

  function uuid() {
    if (window.crypto && crypto.randomUUID) return crypto.randomUUID();
    return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
      var r = Math.random() * 16 | 0;
      return (c === 'x' ? r : (r & 3 | 8)).toString(16);
    });
  }

  function request(url, config, options) {
    options = options || {};
    options.credentials = 'same-origin';
    options.headers = Object.assign({ 'X-WP-Nonce': config.nonce || '' }, options.headers || {});
    return fetch(url, options).then(function (response) {
      return response.json().then(function (payload) {
        if (!response.ok || !payload || payload.success === false) {
          throw new Error((payload && payload.message) || '请求失败');
        }
        return payload.data;
      });
    });
  }

  function loadScript(src) {
    return new Promise(function (resolve, reject) {
      var existing = document.querySelector('script[src="' + src + '"]');
      if (existing) {
        if (existing.dataset.loaded === '1') return resolve();
        existing.addEventListener('load', resolve, { once: true });
        existing.addEventListener('error', reject, { once: true });
        return;
      }
      var script = document.createElement('script');
      script.src = src;
      script.async = true;
      script.onload = function () { script.dataset.loaded = '1'; resolve(); };
      script.onerror = reject;
      document.head.appendChild(script);
    });
  }

  function aliyunMetaInfo(config) {
    if (config.provider !== 'aliyun') return Promise.resolve('');
    return loadScript('https://o.alicdn.com/yd-cloudauth/cloudauth-cdn/jsvm_all.js').then(function () {
      if (typeof window.getMetaInfo !== 'function') throw new Error('阿里云 MetaInfo 组件未加载成功');
      var meta = window.getMetaInfo();
      return typeof meta === 'string' ? meta : JSON.stringify(meta || {});
    });
  }

  function init(root) {
    if (!root || root.dataset.identityBound === '1') return;
    root.dataset.identityBound = '1';
    var config = parseConfig(root);
    var modal = root.querySelector('#uc-auth-modal');
    if (!modal) return;
    var currentUuid = config.currentUuid || '';
    var pollTimer = null;
    var shouldPoll = false;

    function open() { modal.classList.add('is-open'); modal.setAttribute('aria-hidden', 'false'); document.body.style.overflow = 'hidden'; }
    function close() { modal.classList.remove('is-open'); modal.setAttribute('aria-hidden', 'true'); document.body.style.overflow = ''; }
    root.querySelectorAll('[data-auth-modal-open]').forEach(function (button) { button.addEventListener('click', open); });
    modal.querySelectorAll('[data-auth-modal-close]').forEach(function (button) { button.addEventListener('click', close); });

    var statusBox = modal.querySelector('[data-auth-status]');
    var createForm = modal.querySelector('[data-auth-create]');
    var manualForm = modal.querySelector('[data-auth-manual]');
    var stageNode = modal.querySelector('[data-auth-stage]');
    var messageNode = modal.querySelector('[data-auth-status-message]');
    var continueLink = modal.querySelector('[data-auth-continue]');
    var refreshButton = modal.querySelector('[data-auth-refresh]');
    var manualButton = modal.querySelector('[data-auth-manual-open]');

    function render(data) {
      if (!data) return;
      currentUuid = data.uuid || currentUuid;
      if (statusBox) statusBox.hidden = false;
      if (createForm) createForm.hidden = true;
      if (stageNode) stageNode.textContent = data.stage || data.status || '认证处理中';
      if (messageNode) messageNode.textContent = data.message || '认证结果以站点服务端主动查询为准。';
      if (continueLink) {
        continueLink.hidden = !data.redirect_url;
        if (data.redirect_url) continueLink.href = data.redirect_url;
      }
      if (manualButton) manualButton.hidden = data.next_action !== 'manual_or_retry';
      shouldPoll = data.next_action === 'poll';
      if (data.status === 'verified') {
        shouldPoll = false;
        stopPolling();
        window.setTimeout(function () { window.location.reload(); }, 500);
      } else if (shouldPoll) {
        schedulePoll(data.poll_interval || 5);
      } else {
        stopPolling();
      }
    }

    function refresh() {
      if (!currentUuid) return Promise.resolve();
      return request(config.restBase + '/' + encodeURIComponent(currentUuid) + '/refresh', config, { method: 'POST' }).then(render);
    }
    function schedulePoll(seconds) { stopPolling(); shouldPoll = true; pollTimer = window.setTimeout(function () { refresh().catch(function () {}).finally(function () { if (shouldPoll && currentUuid) schedulePoll(seconds); }); }, Math.max(3, seconds) * 1000); }
    function stopPolling() { shouldPoll = false; if (pollTimer) window.clearTimeout(pollTimer); pollTimer = null; }
    if (refreshButton) refreshButton.addEventListener('click', function () { refresh().catch(function (error) { if (messageNode) messageNode.textContent = error.message; }); });
    document.addEventListener('visibilitychange', function () { if (document.visibilityState === 'visible' && currentUuid) refresh().catch(function () {}); });

    if (createForm) {
      var typeSelect = createForm.querySelector('[name="type"]');
      var enterprise = createForm.querySelector('[data-enterprise-fields]');
      var personLabel = createForm.querySelector('[data-auth-person-label]');
      var idLabel = createForm.querySelector('[data-auth-id-label]');
      function syncEnterprise() {
        var enabled = typeSelect && typeSelect.value === 'enterprise';
        if (enterprise) enterprise.hidden = !enabled;
        if (enterprise) enterprise.querySelectorAll('input').forEach(function (input) { input.required = enabled; });
        if (personLabel) personLabel.textContent = enabled ? '法定代表人姓名' : '真实姓名';
        if (idLabel) idLabel.textContent = enabled ? '法定代表人身份证号' : '身份证号码';
      }
      if (typeSelect) typeSelect.addEventListener('change', syncEnterprise);
      syncEnterprise();
      createForm.addEventListener('submit', function (event) {
        event.preventDefault();
        var form = new FormData(createForm);
        var payload = {};
        form.forEach(function (value, key) { payload[key] = value; });
        payload.consent = payload.consent === '1';
        payload.client_request_id = uuid();
        var button = createForm.querySelector('[type="submit"]');
        if (button) button.disabled = true;
        aliyunMetaInfo(config).then(function (metaInfo) {
          if (metaInfo) payload.meta_info = metaInfo;
          return request(config.restBase, config, {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify(payload)
          });
        }).then(render).catch(function (error) {
          var node = createForm.querySelector('[data-auth-message]');
          if (node) node.textContent = error.message;
          if (button) button.disabled = false;
        });
      });
    }

    if (manualButton) manualButton.addEventListener('click', function () { if (manualForm) manualForm.hidden = false; });
    if (manualForm) manualForm.addEventListener('submit', function (event) {
      event.preventDefault();
      if (!currentUuid) return;
      var files = manualForm.querySelector('[name="evidence[]"]');
      if (files && files.files.length > 3) return window.alert('证明材料最多上传 3 张');
      var body = new FormData();
      Array.prototype.forEach.call((files && files.files) || [], function (file) { body.append('evidence[]', file); });
      request(config.restBase + '/' + encodeURIComponent(currentUuid) + '/manual', config, { method: 'POST', body: body }).then(render).catch(function (error) { window.alert(error.message); });
    });

    if (currentUuid && ['provider_pending', 'provider_processing'].indexOf(config.currentStage) !== -1) schedulePoll(5);
  }

  window.AKSRTUserCenterAuth = { init: init };
})();