// frontend/src/components/settings/AdvancedStrategySection.jsx
import { SlidersHorizontal } from 'lucide-react';

const STRATEGY_OPTIONS = [
  {
    key: 'metadataFallback',
    defaultVal: true,
    label: '开启多源元数据轮询回退',
    desc: '仅控制 Netease / QQ / Spotify 的身份兜底查询；AcoustID 与 MusicBrainz 主链路始终参与匹配。'
  },
  {
    key: 'downloadAssets',
    defaultVal: true,
    label: '自动下载并补全资产 (封面/歌词)',
    desc: '仅控制 Discogs / Last.fm / Genius 的增强信息查询与来源决策，本轮不会真实下载文件。'
  },
  {
    key: 'replaceLowQualityDuplicates',
    defaultVal: false,
    label: '重复项自动替换低音质 (慎用)',
    desc: '若发现重复曲目且新文件比特率更高，自动覆盖库中旧文件，而非移入回收站产生冲突。'
  }
];

export default function AdvancedStrategySection({ advancedStrategy = {}, onUpdate }) {
  const getVal = (key, defaultVal) =>
    advancedStrategy[key] !== undefined ? advancedStrategy[key] : defaultVal;

  return (
    <div className="rounded-xl border border-slate-800 bg-slate-900 p-6 shadow-lg">
      <h3 className="mb-5 flex items-center border-b border-slate-800 pb-3 text-base font-semibold text-white">
        <SlidersHorizontal className="mr-2 h-5 w-5 text-purple-400" />
        高级运行策略 (Advanced Strategy)
      </h3>
      <div className="grid grid-cols-1 gap-6 md:grid-cols-3">
        {STRATEGY_OPTIONS.map(({ key, defaultVal, label, desc }) => (
          <label key={key} className="group flex h-full cursor-pointer items-start space-x-3 rounded-lg border border-slate-800/50 bg-slate-950/50 p-4 transition-colors hover:border-blue-500/30 hover:bg-slate-900">
            <input
              type="checkbox"
              checked={getVal(key, defaultVal)}
              onChange={(e) => onUpdate('advancedStrategy', { ...advancedStrategy, [key]: e.target.checked })}
              className="mt-1 shrink-0 cursor-pointer rounded border-slate-700 bg-slate-950 text-blue-500 focus:ring-blue-500"
            />
            <div>
              <span className="block text-sm font-medium text-white transition-colors group-hover:text-blue-400">{label}</span>
              <span className="mt-1.5 block text-xs leading-relaxed text-slate-500">{desc}</span>
            </div>
          </label>
        ))}
      </div>
    </div>
  );
}
