/** 举报与禁封申诉审核。仅在对应 native 后台页入队。 */
(function () {
  'use strict';

  var root = document.querySelector('.aksrt-ban-page');
  var dialog = document.getElementById('aksrt-ban-dialog');
  if (!root || !dialog || typeof dialog.showModal !== 'function') return;

  var opener = null;
  var activeForm = null;
  var submitting = false;
  var pointerStartedOutside = false;

  function lockScroll() {
    document.documentElement.classList.toggle('aksrt-ban-modal-open', !!dialog.open);
  }

  function attribute(element, name) {
    return element ? element.getAttribute(name) || '' : '';
  }

  function selectedDecision(form) {
    var radios = form.querySelectorAll('input[type="radio"]');
    for (var index = 0; index < radios.length; index += 1) {
      if (radios[index].checked) return radios[index].value;
    }
    return '';
  }

  function syncReview(form) {
    if (submitting) return;
    var decision = selectedDecision(form);
    var rejected = decision === 'reject' || decision === 'dismissed';
    var note = form.querySelector('textarea[name="note"]');
    var label = form.querySelector('[data-aksrt-ban-note-label]');
    var submit = form.querySelector('[data-aksrt-ban-submit]');
    if (note) {
      note.required = rejected;
      note.setCustomValidity(rejected && !note.value.trim() ? attribute(note, 'data-required-error') : '');
    }
    if (label) label.textContent = attribute(label, rejected ? 'data-required' : 'data-optional');
    if (submit) {
      submit.disabled = !decision;
      submit.textContent = attribute(submit, decision ? (rejected ? 'data-reject-label' : 'data-approve-label') : 'data-idle-label');
      submit.classList.toggle('is-danger', rejected);
    }
  }

  function setActionsDisabled(disabled) {
    dialog.querySelectorAll('[data-aksrt-ban-submit], [data-aksrt-dialog-close]').forEach(function (button) {
      button.disabled = disabled;
    });
  }

  function setupReview(form) {
    form.querySelectorAll('input[type="radio"]').forEach(function (radio) { radio.checked = false; });
    var note = form.querySelector('textarea[name="note"]');
    if (note) note.value = '';
    syncReview(form);
    form.addEventListener('input', function () { syncReview(form); });
    form.addEventListener('change', function () { syncReview(form); });
    form.addEventListener('submit', function (event) {
      if (submitting || form.dataset.submitting === '1') {
        event.preventDefault();
        return;
      }
      syncReview(form);
      if (!selectedDecision(form) || !form.reportValidity()) {
        event.preventDefault();
        return;
      }
      submitting = true;
      form.dataset.submitting = '1';
      form.setAttribute('aria-busy', 'true');
      setActionsDisabled(true);
      var submit = form.querySelector('[data-aksrt-ban-submit]');
      if (submit) submit.textContent = attribute(submit, 'data-busy-label');
    });
  }

  root.querySelectorAll('[data-aksrt-ban-view]').forEach(function (button) {
    button.addEventListener('click', function (event) {
      event.preventDefault();
      if (submitting || dialog.open) return;
      var template = document.getElementById('aksrt-ban-detail-' + attribute(button, 'data-aksrt-ban-view'));
      if (!template || !template.content) return;
      dialog.replaceChildren(template.content.cloneNode(true));
      opener = button;
      pointerStartedOutside = false;
      activeForm = dialog.querySelector('form[data-aksrt-ban-review]');
      if (activeForm) setupReview(activeForm);
      dialog.showModal();
      lockScroll();
    });
  });

  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('pointercancel', function () { pointerStartedOutside = false; });
  dialog.addEventListener('click', function (event) {
    var close = event.target.closest('[data-aksrt-dialog-close]');
    if (close || (pointerStartedOutside && event.target === dialog && isOutside(event))) {
      event.preventDefault();
      if (!submitting) dialog.close();
    }
    pointerStartedOutside = false;
  });
  dialog.addEventListener('cancel', function (event) {
    event.preventDefault();
    if (!submitting) dialog.close();
  });
  dialog.addEventListener('close', function () {
    dialog.replaceChildren();
    activeForm = null;
    submitting = false;
    pointerStartedOutside = false;
    lockScroll();
    var previousOpener = opener;
    opener = null;
    if (previousOpener && previousOpener.isConnected) previousOpener.focus();
  });

  window.addEventListener('pageshow', function () {
    submitting = false;
    if (activeForm) {
      delete activeForm.dataset.submitting;
      activeForm.removeAttribute('aria-busy');
      setActionsDisabled(false);
      syncReview(activeForm);
    }
    lockScroll();
  });
})();