(() => {
  // <stdin>
  (function() {
    const searchParams = new URLSearchParams(window.location.search);
    const keywords = searchParams.get("search").trim();
    const searchInput = document.getElementById("search-input");
    const resultContainer = document.getElementById("search-result");
    const emptyResult = document.getElementById("search-result-empty");
    if (keywords) {
      searchInput.value = keywords;
      search(keywords);
    } else {
      return;
    }
    const fuseOptions = {
      includeScore: true,
      includeMatches: true,
      minMatchCharLength: searchOptions.minMatchCharLength,
      threshold: searchOptions.threshold,
      // refer layouts/search/search.json
      keys: [
        { name: "title", weight: 0.8 },
        { name: "content", weight: 0.5 },
        { name: "tags", weight: 0.2 },
        { name: "categories", weight: 0.2 }
      ]
    };
    function search(keywords2) {
      fetch("./index.json").then((response) => response.json()).then((data) => {
        const fuse = new Fuse(data, fuseOptions);
        const result = fuse.search(keywords2);
        if (result.length > 0) {
          showResult(keywords2, result);
          emptyResult.classList.add("hidden");
        } else {
          resultContainer.innerHTML = "";
          emptyResult.classList.remove("hidden");
        }
      });
    }
    const resultTemplate = `
  <article class="flex flex-col gap-y-3 p-6 mt-6 mx-2 md:mx-0 rounded-lg shadow-md bg-white dark:bg-gray-700" id="result-{{= it.index }}">
    <h2 class="text-4xl font-semibold text-slate-800 dark:text-slate-200">
      <a href="{{= it.permalink }}">{{! it.title }}</a>
    </h2>
    <h3 class="my-4 text-large text-slate-600 dark:text-slate-300">
      {{! it.snippet }}
    </h3>
    <ul class="flex flex-row flex-wrap text-slate-500 dark:text-slate-300">
      {{~ it.categories :v }}
      <li>
        <span
          class="text-sm mr-2 px-2 py-1 rounded border border-emerald-800 bg-emerald-800 text-slate-50">
          {{!v}}
        </span>
      </li>
      {{~}}
      {{~ it.tags :v }}
      <li>
        <span
          class="flex flex-row text-sm mr-2 py-1">
          {{= it.tagIcon }}
          <span class="ml-0">{{!v}}</span>
        </span>
      </li>
      {{~}}
    </ul>
  </article>
  `;
    function showResult(keywords2, result) {
      const templateFn = doT.template(resultTemplate);
      const tagIcon = document.getElementById("tag-icon").innerHTML;
      resultContainer.innerHTML = "";
      for (const [index, entry] of result.entries()) {
        const item = entry.item;
        const content = entry.item.content;
        item.snippet = content.substring(0, searchOptions.summaryInclude * 2) + "&hellip;";
        item.tagIcon = tagIcon;
        item.index = index;
        resultContainer.innerHTML += templateFn(item);
      }
      const instance = new Mark(resultContainer);
      instance.mark(keywords2);
    }
  })();
})();