/* 简航 SimpleNav —— 后台交互 */
(function () {
  'use strict';
  var $ = function (s) { return document.querySelector(s); };

  /* ---------- 自动获取网站信息 ---------- */
  var fetchBtn = $('#btn-fetch');
  if (fetchBtn) {
    fetchBtn.addEventListener('click', function () {
      var url = ($('#f-url') || {}).value || '';
      var hint = $('#fetch-hint');
      if (!url) { if (hint) hint.textContent = '请先填写网址'; return; }
      if (hint) hint.textContent = '正在获取…';
      fetchBtn.disabled = true;
      fetch(fetchBtn.getAttribute('data-url') + '?url=' + encodeURIComponent(url))
        .then(function (r) { return r.json(); })
        .then(function (d) {
          fetchBtn.disabled = false;
          if (!d.ok) { if (hint) hint.textContent = d.msg || '获取失败'; return; }
          if ($('#f-name')) $('#f-name').value = d.name || '';
          if ($('#f-short') && !$('#f-short').value) $('#f-short').value = d.short || d.name || '';
          if ($('#f-icon')) $('#f-icon').value = d.icon || '';
          if (hint) hint.textContent = (d.icon ? '已获取名称与图标' : '已获取名称（未找到图标）') + (d.url ? '：' + d.url : '');
        })
        .catch(function () { fetchBtn.disabled = false; if (hint) hint.textContent = '网络错误'; });
    });
  }
  var resetBtn = $('#btn-reset');
  if (resetBtn) {
    resetBtn.addEventListener('click', function () {
      ['f-id', 'f-url', 'f-name', 'f-short', 'f-icon'].forEach(function (id) { var el = $('#' + id); if (el) el.value = id === 'f-id' ? '0' : ''; });
      var v = $('#f-visible'); if (v) v.checked = true;
      var h = $('#fetch-hint'); if (h) h.textContent = '';
    });
  }

  /* ---------- 编辑网站：回填表单 ---------- */
  document.querySelectorAll('.edit-site').forEach(function (btn) {
    btn.addEventListener('click', function () {
      var d = btn.dataset;
      $('#f-id').value = d.id;
      $('#f-group').value = d.group;
      $('#f-url').value = d.url;
      $('#f-name').value = d.name;
      $('#f-short').value = d.short;
      $('#f-icon').value = d.icon;
      $('#f-visible').checked = d.visible === '1';
      window.scrollTo({ top: 0, behavior: 'smooth' });
    });
  });

  /* ---------- 编辑板块 / 引擎 ---------- */
  document.querySelectorAll('.edit-group').forEach(function (btn) {
    btn.addEventListener('click', function () {
      var d = btn.dataset;
      $('#g-id').value = d.id; $('#g-name').value = d.name;
      $('#g-display').value = d.display; $('#g-visible').checked = d.visible === '1';
      window.scrollTo({ top: 0, behavior: 'smooth' });
    });
  });
  var gReset = $('#g-reset');
  if (gReset) gReset.addEventListener('click', function () { $('#g-id').value = '0'; $('#g-name').value = ''; $('#g-display').value = 'grid'; $('#g-visible').checked = true; });

  document.querySelectorAll('.edit-engine').forEach(function (btn) {
    btn.addEventListener('click', function () {
      var d = btn.dataset;
      $('#e-id').value = d.id; $('#e-name').value = d.name; $('#e-slug').value = d.slug;
      $('#e-search').value = d.search; $('#e-param').value = d.param; $('#e-sug').value = d.sug;
      $('#e-sugtype').value = d.sugtype; $('#e-color').value = d.color; $('#e-active').checked = d.active === '1';
      window.scrollTo({ top: 0, behavior: 'smooth' });
    });
  });
  var eReset = $('#e-reset');
  if (eReset) eReset.addEventListener('click', function () {
    ['e-id', 'e-name', 'e-slug', 'e-search', 'e-sug', 'e-color'].forEach(function (id) { var el = $('#' + id); if (el) el.value = id === 'e-id' ? '0' : ''; });
    $('#e-param').value = 'q'; $('#e-active').checked = false;
  });

  /* ---------- 一键“全部更新”（分批循环） ---------- */
  var upBtn = $('#btn-update-all');
  if (upBtn) {
    upBtn.addEventListener('click', function () {
      if (!confirm('将批量刷新所有网站的图标与名称（用户自定义简称不受影响），确定继续？')) return;
      var base = upBtn.getAttribute('data-url');
      var total = 0, updated = 0, failed = 0, offset = 0;
      upBtn.disabled = true;
      function step() {
        fetch(base + '?offset=' + offset + '&limit=6')
          .then(function (r) { return r.json(); })
          .then(function (d) {
            total = d.total; updated += d.updated; failed += d.failed; offset = d.offset;
            upBtn.textContent = '⟳ 更新中 ' + Math.min(offset, total) + '/' + total;
            if (!d.done) { step(); }
            else {
              upBtn.disabled = false;
              upBtn.textContent = '⟳ 全部更新（图标+名称）';
              alert('更新完成：成功 ' + updated + '，失败/无变化 ' + failed + '，共 ' + total + ' 个网站。');
              location.reload();
            }
          })
          .catch(function () { upBtn.disabled = false; upBtn.textContent = '⟳ 全部更新（图标+名称）'; alert('更新中断，请重试。'); });
      }
      step();
    });
  }
})();