/** 付费文章：快速设置弹窗（填充、条件显隐、会员价校验、未保存提醒、防重复提交）。仅本页入队。 */
(function () {
  'use strict';

  var root = document.querySelector('.jio-products-page');
  var dialog = document.getElementById('jio-product-editor');
  if (!root || !dialog || typeof dialog.showModal !== 'function') return;

  var form = dialog.querySelector('[data-jio-product-form]');
  var submit = form.querySelector('[data-jio-product-submit]');
  var subject = form.querySelector('[data-jio-product-subject]');
  var editLink = form.querySelector('[data-jio-product-edit-link]');
  var submitLabel = submit.textContent;
  var opener = null;
  var snapshot = '';
  var pointerStartedOutside = false;

  function field(key) {
    return form.querySelectorAll('[name="jio_pay[' + key + ']"]');
  }

  function value(key) {
    var nodes = field(key);
    for (var i = 0; i < nodes.length; i += 1) {
      var node = nodes[i];
      if (node.type === 'radio') {
        if (node.checked) return node.value;
      } else if (node.type === 'checkbox') {
        return node.checked ? node.value : '';
      } else {
        return node.value;
      }
    }
    return '';
  }

  function paneActive(name) {
    switch (name) {
      case 'enabled': return value('pay_type') !== 'no';
      case 'disabled': return value('pay_type') === 'no';
      case 'cash': return value('pay_modo') !== 'points';
      case 'points': return value('pay_modo') === 'points';
      case 'expire': return value('order_expired_s') === '1';
      default: return true;
    }
  }

  /** 隐藏的分区连同其中的控件一起禁用：既不提交，也不参与必填校验。 */
  function syncPanes() {
    form.querySelectorAll('[data-jio-product-pane]').forEach(function (pane) {
      var active = paneActive(pane.getAttribute('data-jio-product-pane'));
      pane.hidden = !active;
      if (pane.tagName === 'FIELDSET') pane.disabled = !active;
    });
    form.querySelectorAll('input:not([type="hidden"]), select, textarea').forEach(function (control) {
      var node = control.parentElement;
      var disabled = false;
      while (node && node !== form) {
        if (node.hasAttribute('data-jio-product-pane') && node.hidden) {
          disabled = true;
          break;
        }
        node = node.parentElement;
      }
      control.disabled = disabled;
    });
    syncVip();
  }

  /** 现金按「分」比较，避免浮点误差。 */
  function amount(raw, mode) {
    var text = String(raw || '').trim();
    if (mode === 'points') return /^\d+$/.test(text) ? Number(text) : NaN;
    var match = text.match(/^(\d+)(?:\.(\d{1,2}))?$/);
    return match ? Number(match[1]) * 100 + Number((match[2] || '').padEnd(2, '0')) : NaN;
  }

  function syncVip() {
    ['cash', 'points'].forEach(function (mode) {
      var base = form.querySelector('[data-jio-product-base="' + mode + '"]');
      var message = form.getAttribute(mode === 'points' ? 'data-vip-points-error' : 'data-vip-error');
      form.querySelectorAll('[data-jio-product-vip="' + mode + '"]').forEach(function (input) {
        var vip = amount(input.value, mode);
        var limit = amount(base && base.value, mode);
        input.setCustomValidity(!input.disabled && vip > limit ? message : '');
      });
    });
  }

  function serialize() {
    return new URLSearchParams(new FormData(form)).toString();
  }

  function fill(payload) {
    var fields = payload.fields || {};
    form.reset();
    form.elements.post_id.value = String(payload.id || '');
    Object.keys(fields).forEach(function (key) {
      var current = String(fields[key]);
      field(key).forEach(function (node) {
        if (node.type === 'radio') {
          node.checked = node.value === current;
        } else if (node.type === 'checkbox') {
          node.checked = current === '1';
        } else {
          node.value = key === 'order_expired_time' && current === '0' ? '' : current;
        }
      });
    });
    subject.textContent = (payload.title || '') + ' · #' + String(payload.id || '');
    editLink.hidden = !payload.editUrl;
    editLink.href = payload.editUrl || '#';
    syncPanes();
  }

  function lockScroll() {
    document.documentElement.classList.toggle('jio-products-modal-open', dialog.open);
  }

  function requestClose() {
    if (form.dataset.submitting) return;
    if (serialize() !== snapshot && !window.confirm(form.getAttribute('data-discard'))) return;
    dialog.close();
  }

  root.addEventListener('click', function (event) {
    var button = event.target.closest('[data-jio-product-edit]');
    if (!button || dialog.open) return;
    var payload;
    try {
      payload = JSON.parse(button.getAttribute('data-jio-product-edit'));
    } catch (error) {
      return;
    }
    opener = button;
    fill(payload);
    snapshot = serialize();
    dialog.showModal();
    lockScroll();
  });

  form.addEventListener('change', syncPanes);
  form.addEventListener('input', syncVip);

  function isOutside(event) {
    var rect = dialog.getBoundingClientRect();
    return event.clientX < rect.left || event.clientX > rect.right || event.clientY < rect.top || event.clientY > rect.bottom;
  }

  dialog.addEventListener('pointerdown', function (event) {
    pointerStartedOutside = event.target === dialog && isOutside(event);
  });
  dialog.addEventListener('click', function (event) {
    if (event.target.closest('[data-jio-dialog-close]')
      || (pointerStartedOutside && event.target === dialog && isOutside(event))) {
      event.preventDefault();
      requestClose();
    }
    pointerStartedOutside = false;
  });
  dialog.addEventListener('cancel', function (event) {
    event.preventDefault();
    requestClose();
  });
  dialog.addEventListener('close', function () {
    lockScroll();
    if (opener && opener.isConnected) opener.focus();
    opener = null;
  });

  form.addEventListener('submit', function (event) {
    syncVip();
    if (form.dataset.submitting || !form.checkValidity()) {
      event.preventDefault();
      form.reportValidity();
      return;
    }
    form.dataset.submitting = '1';
    submit.textContent = form.getAttribute('data-busy-label');
    // 延后禁用：同步禁用 submit 按钮会让部分浏览器丢掉这次提交。
    setTimeout(function () { submit.disabled = true; }, 0);
  });

  // bfcache 返回时恢复按钮，避免弹窗停在保存中状态。
  window.addEventListener('pageshow', function () {
    delete form.dataset.submitting;
    submit.disabled = false;
    submit.textContent = submitLabel;
    lockScroll();
  });

  var highlighted = root.querySelector('.jio-products-table tr.is-highlight');
  if (highlighted && typeof highlighted.scrollIntoView === 'function') {
    highlighted.scrollIntoView({ block: 'center' });
  }
})();