// 卡片三栏降级布局纯函数（UMD：Node require / 浏览器挂 window.cards）
// Card three-column fallback layout pure function (UMD: Node require / browser window.cards)
(function (root, factory) {
  if (typeof module === 'object' && module.exports) module.exports = factory();
  else root.cards = factory();
})(this, function () {
  // cards: [{id, priority, enabled}]，time 卡为内置始终保留
  // 返回三栏分配结果，优先级数字小者优先；disabled 的卡不占位
  // cards: [{id, priority, enabled}], time card is builtin and always kept
  // Returns the three-column assignment; smaller priority comes first; disabled cards are skipped
  function layout(cards) {
    const columns = [[], [], []];
    const active = cards
      .filter((c) => c.enabled !== false)
      .sort((a, b) => a.priority - b.priority);
    active.forEach((c, i) => columns[i % 3].push(c.id));
    return columns;
  }
  return { layout };
});