(function (window, document) {
  'use strict';

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

  function parseResponse(response) {
    var payload = response && (response.data !== undefined ? response.data : response.json);
    return payload && payload.data !== undefined ? payload.data : payload;
  }

  function errorMessage(error, fallback) {
    if (error && error.json) return error.json.message || fallback;
    return error && error.message ? error.message : fallback;
  }

  function toast(message, type, time, id) {
    if (message && typeof window.notyf === 'function') window.notyf(message, type || 'success', time, id);
  }

  function init(root) {
    if (!root || root.dataset.identityBound === '1') return;
    root.dataset.identityBound = '1';

    var config = configFor(root);
    var template = root.querySelector('[data-auth-modal-template]');
    var runtime = window.AksrtModalRuntime;
    if (!template || !runtime || !window.AksrtRequest) return;

    function open() {
      runtime.open({
        html: template.innerHTML,
        height: 320,
        kind: 'identity',
        className: 'aksrt-identity-modal-shell',
        mobileBottom: true,
        onContent: function (_, session) {
          var shell = session && session.shell;
          var form = shell && shell.querySelector('[data-auth-create]');
          var input = form && form.querySelector('[data-auth-evidence]');
          var preview = form && form.querySelector('[data-auth-preview]');
          if (!form || !input || !preview) return;
          shell.setAttribute('aria-labelledby', 'uc-auth-modal-title');

          var selectedFiles = [];
          function renderPreview() {
            preview.replaceChildren();
            selectedFiles.forEach(function (entry, index) {
              var item = document.createElement('div');
              item.className = 'preview-item';
              var image = document.createElement('img');
              image.className = 'fit-cover';
              image.src = entry.url;
              image.alt = entry.file.name;
              var remove = document.createElement('button');
              remove.type = 'button';
              remove.className = 'uc-auth-preview-remove';
              remove.dataset.authRemove = String(index);
              remove.setAttribute('aria-label', '移除 ' + entry.file.name);
              remove.textContent = '×';
              item.appendChild(image);
              item.appendChild(remove);
              preview.appendChild(item);
            });

            if (selectedFiles.length < 3) {
              var add = document.createElement('button');
              add.type = 'button';
              add.className = 'add';
              add.dataset.authFilePicker = '';
              add.setAttribute('aria-label', '选择证明材料图片');
              preview.appendChild(add);
            }
          }

          function releasePreviewUrls() {
            selectedFiles.forEach(function (entry) { window.URL.revokeObjectURL(entry.url); });
            selectedFiles = [];
          }

          function onModalClose(event) {
            if (!event.detail || event.detail.shell !== shell) return;
            document.removeEventListener('aksrt:modal:close', onModalClose);
            releasePreviewUrls();
          }

          document.addEventListener('aksrt:modal:close', onModalClose);
          preview.addEventListener('click', function (event) {
            var remove = event.target.closest('[data-auth-remove]');
            if (remove) {
              var index = Number(remove.dataset.authRemove);
              var entry = selectedFiles[index];
              if (entry) window.URL.revokeObjectURL(entry.url);
              selectedFiles.splice(index, 1);
              renderPreview();
              return;
            }
            if (event.target.closest('[data-auth-file-picker]')) input.click();
          });
          input.addEventListener('change', function () {
            var files = Array.prototype.slice.call(input.files || []);
            input.value = '';
            if (!files.length) return;

            var unsupported = files.some(function (file) { return !/^image\/(gif|jpe?g|png|webp)$/i.test(file.type); });
            if (unsupported) {
              toast('证明材料仅支持 JPG、PNG、GIF 或 WebP 图片', 'danger');
              return;
            }
            if (files.some(function (file) { return file.size > 2 * 1024 * 1024; })) {
              toast('单张证明材料不能超过 2MB', 'danger');
              return;
            }

            var uniqueFiles = files.filter(function (file, index) {
              var key = [file.name, file.size, file.lastModified].join(':');
              return !selectedFiles.some(function (entry) { return entry.key === key; }) &&
                files.findIndex(function (candidate) {
                  return [candidate.name, candidate.size, candidate.lastModified].join(':') === key;
                }) === index;
            });
            if (selectedFiles.length + uniqueFiles.length > 3) {
              toast('证明材料最多上传 3 张', 'danger');
              return;
            }

            uniqueFiles.forEach(function (file) {
              selectedFiles.push({
                file: file,
                key: [file.name, file.size, file.lastModified].join(':'),
                url: window.URL.createObjectURL(file),
              });
            });
            renderPreview();
          });

          var header = shell.querySelector('.uc-auth-modal__header');
          if (header) {
            var touchStartY = null;
            header.addEventListener('touchstart', function (event) {
              touchStartY = event.touches.length ? event.touches[0].clientY : null;
            }, { passive: true });
            header.addEventListener('touchend', function (event) {
              var touchEndY = event.changedTouches.length ? event.changedTouches[0].clientY : null;
              if (touchStartY !== null && touchEndY !== null && touchEndY - touchStartY > 60 &&
                runtime.getActive && runtime.getActive() === shell) {
                runtime.close('swipe');
              }
              touchStartY = null;
            }, { passive: true });
          }

          form.addEventListener('submit', function (event) {
            event.preventDefault();
            var invalidField = form.querySelector(':invalid');
            if (!form.checkValidity()) {
              toast((invalidField && invalidField.validationMessage) || '请检查申请信息是否填写完整', 'danger');
              if (invalidField && typeof invalidField.focus === 'function') invalidField.focus();
              return;
            }
            var button = form.querySelector('[type="submit"]');
            var formData = new FormData(form);
            selectedFiles.forEach(function (entry) {
              formData.append('evidence[]', entry.file, entry.file.name);
            });
            var submitLabel = button ? button.innerHTML : '';
            if (button) {
              button.disabled = true;
              button.innerHTML = '<i class="fa fas fa-spinner fa-spin mr6" aria-hidden="true"></i>正在提交…';
            }
            toast('正在提交申请…', 'load', '', 'aksrt_identity_submit');
            window.AksrtRequest.request(config.restBase, {
              method: 'POST',
              credentials: 'same-origin',
              headers: { 'X-WP-Nonce': config.nonce || '' },
              body: formData,
            }).then(function (response) {
              var result = parseResponse(response);
              if (!result || result.success === false) throw new Error((result && result.message) || '申请提交失败，请稍后重试');
              toast('申请已提交，请耐心等待管理员审核。', 'success', '', 'aksrt_identity_submit');
              var summary = root.querySelector('[data-auth-summary]');
              if (summary) {
                summary.replaceChildren();
                var pending = document.createElement('div');
                pending.className = 'c-red mb10';
                pending.textContent = '您的申请正在审核中，请耐心等待';
                var name = document.createElement('div');
                name.textContent = result.name || '';
                summary.appendChild(pending);
                summary.appendChild(name);
                if (result.description) {
                  var description = document.createElement('div');
                  description.className = 'muted-2-color mt10';
                  description.textContent = result.description;
                  summary.appendChild(description);
                }
                if (result.message) {
                  var applicationMessage = document.createElement('div');
                  applicationMessage.className = 'muted-2-color mt10';
                  applicationMessage.textContent = '申请说明：' + result.message;
                  summary.appendChild(applicationMessage);
                }
                (Array.isArray(result.evidence) ? result.evidence : []).forEach(function (item) {
                  if (!item || !item.url || !item.thumbnail_url) return;
                  var link = document.createElement('a');
                  link.href = item.url;
                  link.target = '_blank';
                  link.rel = 'noopener noreferrer';
                  var image = document.createElement('img');
                  image.src = item.thumbnail_url;
                  image.alt = '身份认证证明材料';
                  image.width = 64;
                  image.height = 64;
                  image.style.objectFit = 'cover';
                  image.style.borderRadius = '4px';
                  link.appendChild(image);
                  summary.appendChild(link);
                });
              }
              if (runtime.getActive && runtime.getActive() === shell) runtime.close('submit');
            }).catch(function (error) {
              toast(errorMessage(error, '申请提交失败，请稍后重试'), 'danger', '', 'aksrt_identity_submit');
            }).finally(function () {
              if (button) {
                button.disabled = false;
                button.innerHTML = submitLabel;
              }
            });
          });
        },
      });
    }

    root.querySelectorAll('[data-auth-modal-open]').forEach(function (button) {
      button.addEventListener('click', function (event) {
        event.preventDefault();
        open();
      });
    });
  }

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