(function () {
  var CODES = ["zh-Hans", "zh-Hant", "en", "ja", "ko", "es", "fr", "de", "pt", "ru", "ar", "th", "vi", "id", "it"];
  var NAMES = {
    "zh-Hans": "简体中文",
    "zh-Hant": "繁體中文",
    en: "English",
    ja: "日本語",
    ko: "한국어",
    es: "Español",
    fr: "Français",
    de: "Deutsch",
    pt: "Português",
    ru: "Русский",
    ar: "العربية",
    th: "ไทย",
    vi: "Tiếng Việt",
    id: "Bahasa Indonesia",
    it: "Italiano"
  };
  var STORAGE = "sleepheart-lang";

  function match(lang) {
    var l = (lang || "").toLowerCase().replace(/_/g, "-");
    if (l.indexOf("zh") === 0) {
      if (l.indexOf("tw") >= 0 || l.indexOf("hk") >= 0 || l.indexOf("mo") >= 0 || l.indexOf("hant") >= 0) return "zh-Hant";
      return "zh-Hans";
    }
    var base = l.split("-")[0];
    return CODES.indexOf(base) >= 0 ? base : "";
  }

  function preferred() {
    var saved = "";
    try { saved = localStorage.getItem(STORAGE) || ""; } catch (e) {}
    if (CODES.indexOf(saved) >= 0) return saved;
    var list = navigator.languages || [navigator.language || ""];
    for (var i = 0; i < list.length; i++) {
      var hit = match(list[i]);
      if (hit) return hit;
    }
    return "zh-Hans";
  }

  function esc(s) {
    return String(s).replace(/[&<>"']/g, function (c) {
      return { "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;", "'": "&#39;" }[c];
    });
  }

  function repl(s, a, b) { return String(s).split(a).join(b); }

  function linkify(s, ui) {
    var html = esc(s);
    html = repl(html, "{email}", '<a href="mailto:asd272940236@foxmail.com">asd272940236@foxmail.com</a>');
    html = repl(html, "{home}", '<a href="/">' + esc(ui.backHome) + "</a>");
    html = repl(html, "{delete}", '<a href="/delete">' + esc(ui.navDelete) + "</a>");
    html = repl(html, "{privacyDoc}", '<a href="/privacy">' + esc(ui.privacyDoc) + "</a>");
    html = repl(html, "{privacy}", '<a href="/privacy">' + esc(ui.navPrivacy) + "</a>");
    html = repl(html, "{terms}", '<a href="/terms">' + esc(ui.navTerms) + "</a>");
    return html;
  }

  function renderDoc(blocks, ui) {
    var html = "";
    var list = "";
    function closeList() {
      if (!list) return;
      html += list === "ol" ? "</ol>" : "</ul>";
      list = "";
    }
    blocks.forEach(function (block) {
      var tag = block[0];
      var inner = linkify(block[1], ui);
      if (tag === "step" || tag === "li") {
        var kind = tag === "step" ? "ol" : "ul";
        if (list && list !== kind) closeList();
        if (!list) {
          html += kind === "ol" ? '<ol class="steps">' : "<ul>";
          list = kind;
        }
        html += "<li>" + inner + "</li>";
        return;
      }
      closeList();
      if (tag === "meta") html += '<p class="meta">' + inner + "</p>";
      else if (tag === "lead") html += '<p class="lead">' + inner + "</p>";
      else if (tag === "note") html += '<p class="note">' + inner + "</p>";
      else html += "<" + tag + ">" + inner + "</" + tag + ">";
    });
    closeList();
    return html;
  }

  function apply(pack) {
    var page = document.body.getAttribute("data-page") || "home";
    var ui = pack.ui;
    document.documentElement.lang = pack.htmlLang;
    document.documentElement.dir = pack.dir || "ltr";
    if (pack.titles && pack.titles[page]) document.title = pack.titles[page];
    var desc = document.querySelector('meta[name="description"]');
    if (desc && pack.desc && pack.desc[page]) desc.setAttribute("content", pack.desc[page]);
    document.querySelectorAll("[data-i18n]").forEach(function (el) {
      var key = el.getAttribute("data-i18n");
      if (ui[key] == null) return;
      if (el.getAttribute("data-i18n-mode") === "html") el.innerHTML = linkify(ui[key], ui);
      else el.textContent = ui[key];
    });
    document.querySelectorAll("[data-i18n-alt]").forEach(function (el) {
      var key = el.getAttribute("data-i18n-alt");
      if (ui[key] != null) el.setAttribute("alt", ui[key]);
    });
    var doc = document.getElementById("doc");
    if (doc && pack[page]) doc.innerHTML = renderDoc(pack[page], ui);
    var select = document.getElementById("lang-select");
    if (select) {
      select.value = pack.code;
      select.setAttribute("aria-label", ui.langLabel);
    }
    var label = document.querySelector(".lang-label span");
    if (label) label.textContent = ui.langLabel;
    var nav = document.querySelector(".nav");
    if (nav) nav.setAttribute("aria-label", ui.navAria);
    var foot = document.querySelector(".foot-links");
    if (foot) foot.setAttribute("aria-label", ui.footAria);
  }

  function load(code) {
    if (window.SH_PACKS && window.SH_PACKS[code]) return Promise.resolve(window.SH_PACKS[code]);
    return new Promise(function (resolve, reject) {
      var s = document.createElement("script");
      s.src = "/assets/i18n/" + code + ".js?v=20261011lang";
      s.onload = function () {
        if (window.SH_PACKS && window.SH_PACKS[code]) resolve(window.SH_PACKS[code]);
        else reject(new Error("missing pack"));
      };
      s.onerror = function () { reject(new Error("load")); };
      document.head.appendChild(s);
    });
  }

  function boot() {
    var select = document.getElementById("lang-select");
    if (select && !select.options.length) {
      CODES.forEach(function (code) {
        var opt = document.createElement("option");
        opt.value = code;
        opt.textContent = NAMES[code];
        select.appendChild(opt);
      });
      select.addEventListener("change", function () {
        var code = select.value;
        try { localStorage.setItem(STORAGE, code); } catch (e) {}
        load(code).then(apply).catch(function () {
          if (window.SH_PACKS && window.SH_PACKS["zh-Hans"]) apply(window.SH_PACKS["zh-Hans"]);
        });
      });
    }
    var code = preferred();
    load(code).then(apply).catch(function () {
      if (window.SH_PACKS && window.SH_PACKS["zh-Hans"]) apply(window.SH_PACKS["zh-Hans"]);
    });
  }

  if (document.readyState === "loading") document.addEventListener("DOMContentLoaded", boot);
  else boot();
})();