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highschool / mapgood.js
document.addEventListener('DOMContentLoaded', () => {
	
  // 地図オブジェクトを作成し、中心座標とズームレベルを設定
  const map = L.map('map').setView([38.9175, 139.8353], 16);
  const markers = [];// 全てのマーカーを保存する配列(フィルタ用)
  
  // 地図タイルを読み込み(OpenStreetMap使用)
  L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
    attribution: '© OpenStreetMap contributors'
  }).addTo(map);
  
  // 現在地表示
  if (navigator.geolocation) {
    navigator.geolocation.getCurrentPosition(position => {
      const lat = position.coords.latitude;
      const lng = position.coords.longitude;
      L.marker([lat, lng], {
        icon: L.icon({
          iconUrl: 'images/favicon-32x32-now.png',
          iconSize: [24, 24],
          iconAnchor: [12, 12]
        })
      }).addTo(map).bindPopup('現在地');
    });
  }
  
  // 曜日を日本語に変換する配列
  const dayMap = ['日', '月', '火', '水', '木', '金', '土'];
  const today = new Date();
  const todayStr = dayMap[today.getDay()];// 今日の曜日を文字列で取得
  
  // ───── 関数:本日が定休日かどうかを判定 ─────
  function isClosedToday(desc1) {
    if (!desc1) return false;
    const closed = desc1.replace('定休日:', '').replace(/:/g, '').split(/[、,/・\/\s]/).filter(Boolean);// 曜日や不定休を抽出
    
    for (let entry of closed) {
      entry = entry.trim();
      if (entry.includes('不定休')) return true;
      if (entry.includes(todayStr) && !entry.match(/第\d/)) return true;
      
      // 第○○曜日のパターン
      const nthMatch = entry.match(/第(\d)(.)曜日/);
      if (nthMatch) {
        const nth = parseInt(nthMatch[1], 10);
        const day = nthMatch[2];
        if (day !== todayStr) continue;
        
        // 今月のその曜日が第何回か判定
        let count = 0;
        for (let d = 1; d <= 31; d++) {
          const date = new Date(today.getFullYear(), today.getMonth(), d);
          if (date.getMonth() !== today.getMonth()) break;
          if (date.getDay() === dayMap.indexOf(day)) count++;
          if (date.getDate() === today.getDate() && count === nth) return true;
        }
      }
    }
    return false;
  }
  
  // ───── 関数:現在時間が営業時間内か判定 ─────
  function isOpenNow(desc2) {
    if (!desc2) return false;
    const now = new Date();
    const day = now.getDay();
    const time = now.getHours() * 60 + now.getMinutes();// 現在時刻(分単位)
    
    // 複数の営業時間パターン(曜日ごと)を考慮
    const segments = desc2.split(/\/|\\n|\\r\\n/);
    for (let segment of segments) {
      // 曜日を含む営業時間フォーマットにマッチ
      const match = segment.match(/(月|火|水|木|金|土|日)(?:~(月|火|水|木|金|土|日))?[::]?\s*(\d{1,2})[::](\d{2})\s*〜\s*(\d{1,2})[::](\d{2})/);
      if (match) {
        const [_, startDay, endDay, sh, sm, eh, em] = match;
        const startMin = parseInt(sh) * 60 + parseInt(sm);
        let endMin = parseInt(eh) * 60 + parseInt(em);
        const dayIndex = { '日': 0, '月': 1, '火': 2, '水': 3, '木': 4, '金': 5, '土': 6 };
        let validDay = false;
        if (!endDay) {
          validDay = day === dayIndex[startDay];
        } else {
          const startIdx = dayIndex[startDay];
          const endIdx = dayIndex[endDay];
          validDay = startIdx <= endIdx ? day >= startIdx && day <= endIdx : day >= startIdx || day <= endIdx;
        }
        if (!validDay) continue;
        if (endMin <= startMin) endMin += 1440;// 翌日まで営業する場合
        const currentTime = time < startMin ? time + 1440 : time;
        if (currentTime >= startMin && currentTime <= endMin) return true;
      }
      
      // シンプルな時間フォーマット(曜日なし)
      const simple = segment.match(/(\d{1,2})[::](\d{2})\s*〜\s*(\d{1,2})[::](\d{2})/);
      if (simple) {
        const startMin = parseInt(simple[1]) * 60 + parseInt(simple[2]);
        let endMin = parseInt(simple[3]) * 60 + parseInt(simple[4]);
        if (endMin <= startMin) endMin += 1440;
        const currentTime = time < startMin ? time + 1440 : time;
        if (currentTime >= startMin && currentTime <= endMin) return true;
      }
    }
    return false;
  }

  // ───── CSVファイルから店舗情報を読み込んでマーカーを配置 ─────
  fetch('snack.csv')
    .then(response => response.text())
    .then(text => {
      const rows = text.split('\n').filter(row => row.trim());
      const headers = rows[0].split(',').map(h => h.trim());

      for (let i = 1; i < rows.length; i++) {
        const values = rows[i].split(',').map(v => v.replace(/^"|"$/g, '').trim());
        const data = {};
        headers.forEach((key, index) => data[key] = values[index] || '');

        const lat = parseFloat(data.latitude);
        const lng = parseFloat(data.longitude);
        if (isNaN(lat) || isNaN(lng)) continue;
        
        // 営業中アイコンか、休業中アイコンを選択
        const isOpen = !isClosedToday(data.description1) && isOpenNow(data.description2);
        const iconPath = isOpen ? (data.icon || 'images/snack-icon.png') : 'images/favicon-door-32x32.png';

        const customIcon = L.icon({
          iconUrl: iconPath,
          iconSize: [32, 32],
          iconAnchor: [16, 32],
          popupAnchor: [0, -32]
        });

        // 店舗の説明文と画像
        const description = [data.description1, data.description2, data.description3, data.mama]
          .filter(Boolean)
          .map(d => d.trim())
          .join('<br>');

        const image1 = data.img1 && data.img1.trim() !== '' ? data.img1 : 'images/snacktitle.png';
        const image2 = data.img2 && data.img2.trim() !== '' ? data.img2 : 'images/snacktitle.png';

	// ポップアップのHTML内容
        const popupContent = `
          <div class="popup-content">
            <h3>${data.name.replace(/"$/, '')}</h3>
            <p>${description}</p>
            <img src="${image1}" width="106" height="73" style="cursor: pointer;" onclick="openModal('${image1}')" />
            <img src="${image2}" width="106" height="73" style="cursor: pointer;" onclick="openModal('${image2}')" />
            <button onclick="addToFavorites('${data.name}')">行きたいお店リストに追加</button>
          </div>`;
        
        const marker = L.marker([lat, lng], { icon: customIcon }).addTo(map).bindPopup(popupContent);
        marker.isOpen = isOpen;
        markers.push(marker);// フィルタ機能のために保存
      }
    })
    .catch(error => {
      console.error('CSV読み込みエラー:', error);
    });

  // ───── 「空いてる店だけ表示」ボタンのUIと機能 ─────
  const toggleBtn = document.createElement('button');
  toggleBtn.textContent = '営業中の店を表示';
  toggleBtn.style.position = 'absolute';
  toggleBtn.style.top = '10px';
  toggleBtn.style.right = '10px';
  toggleBtn.style.zIndex = 1000;
  toggleBtn.style.padding = '10px 10px';
  toggleBtn.style.background = '#f3e8ff';
  toggleBtn.style.color = '#3e004f';
  toggleBtn.style.border = '1px solid #3e004f';
  toggleBtn.style.cursor = 'pointer';
  document.body.appendChild(toggleBtn);

  let showingOnlyOpen = false;
  toggleBtn.addEventListener('click', () => {
    showingOnlyOpen = !showingOnlyOpen;
    toggleBtn.textContent = showingOnlyOpen ? '全ての店を表示' : '営業中の店を表示';
    markers.forEach(marker => {
      if (showingOnlyOpen) {
        if (marker.isOpen) marker.addTo(map);
        else map.removeLayer(marker);
      } else {
        marker.addTo(map);
      }
    });
  });
});

// ローカルストレージに店舗名を追加(お気に入り機能)
window.addToFavorites = function(name) {
  const favorites = JSON.parse(localStorage.getItem('favorites') || '[]');
  favorites.push({ name, addedAt: new Date().toISOString() });
  localStorage.setItem('favorites', JSON.stringify(favorites));
  alert(`${name}を行きたいお店リストに追加しました!`);
};

// 画像モーダル表示用
window.openModal = function(src) {
  const modal = document.getElementById("modal");
  const modalImg = document.getElementById("modal-img");
  modal.style.display = "block";
  modalImg.src = src;
};

// モーダル閉じる
window.closeModal = function() {
  document.getElementById("modal").style.display = "none";
};