(function(){
  // 状態の翻訳（完全一致）
  var statusDict = {
    '空き': 'Available', '運転中': 'In Use', '運転': 'In Use', '異常': 'Error'
  };
  var statusReverse = {};
  for (var k in statusDict) statusReverse[statusDict[k]] = k;

  // 種類の翻訳（部分一致で前方から検索、長い順にマッチ）
  var typeMap = [
    ['小型洗濯乾燥機', 'Small Washer/Dryer'],
    ['中型洗濯乾燥機', 'Med Washer/Dryer'],
    ['靴洗濯乾燥機', 'Shoe Washer/Dryer'],
    ['中型乾燥機上段', 'Med Dryer Upper'],
    ['中型乾燥機下段', 'Med Dryer Lower'],
    ['大型乾燥機', 'Large Dryer'],
    ['中型乾燥機', 'Med Dryer'],
    ['小型乾燥機', 'Small Dryer'],
    ['洗濯乾燥機', 'Washer/Dryer'],
    ['乾燥機', 'Dryer'],
    ['洗濯機', 'Washer']
  ];
  var typeReverse = typeMap.map(function(p){ return [p[1], p[0]]; });

  function translateType(text, toLang) {
    var pairs = toLang === 'en' ? typeMap : typeReverse;
    for (var i = 0; i < pairs.length; i++) {
      if (text.indexOf(pairs[i][0]) !== -1) {
        return text.replace(pairs[i][0], pairs[i][1]);
      }
    }
    return text;
  }

  // 機械名: X号機 <-> #X
  function translateMachine(text, toLang) {
    if (toLang === 'en') return text.replace(/(\d+)号機/, '#$1');
    return text.replace(/#(\d+)/, '$1号機');
  }

  function translateMinutes(text, toLang) {
    if (toLang === 'en') return text.replace(/(\d+)分/, '$1 min');
    return text.replace(/(\d+) min/, '$1分');
  }

  function translateUpdate(text, toLang) {
    if (toLang === 'en') return text.replace('更新:', 'Updated:');
    return text.replace('Updated:', '更新:');
  }

  function applyLang(lang) {
    var sMap = lang === 'en' ? statusDict : statusReverse;
    document.querySelectorAll('#main td').forEach(function(td) {
      var col = td.getAttribute('data-col');
      var t = td.textContent.trim();
      if (col === 'machineName') {
        td.textContent = translateMachine(t, lang);
      } else if (col === 'status') {
        if (sMap[t]) td.textContent = sMap[t];
      } else if (col === 'minutes') {
        td.textContent = translateMinutes(td.textContent, lang);
      } else if (col === 'type') {
        td.textContent = translateType(t, lang);
      }
    });
    var upd = document.querySelector('[data-i18n="update"]');
    if (upd) upd.textContent = translateUpdate(upd.textContent, lang);

    var dir = document.querySelector('[data-i18n="directions"]');
    if (dir) dir.textContent = lang === 'en' ? '📍 Get Directions on Google Maps' : '📍 Googleマップで道案内';

    var btn = document.getElementById('lang-toggle');
    if (btn) btn.className = 'lang-' + lang;
  }

  var lang = localStorage.getItem('beloved-lang') || 'ja';
  document.addEventListener('DOMContentLoaded', function() {
    applyLang(lang);
    var btn = document.getElementById('lang-toggle');
    if (btn) {
      btn.addEventListener('click', function() {
        lang = lang === 'ja' ? 'en' : 'ja';
        localStorage.setItem('beloved-lang', lang);
        applyLang(lang);
      });
    }
  });
})();