$(function() {
    $.datepicker.setDefaults($.datepicker.regional["ja"]);

    function doSomething(element) {
      let selectedDate = $(element).data('datepicker-date'); 
      if (!selectedDate) return;

      // 共通の処理：土日の判定
      let dayOfWeek = selectedDate.getDay(); // 0:日, 6:土
      let isWeekend = (dayOfWeek === 0 || dayOfWeek === 6);
      
      // クラス名から対象のselectを特定
      let targetName = "";
      if($(element).hasClass('day1')) targetName = "date-hope1-time";
      if($(element).hasClass('day2')) targetName = "date-hope2-time";
      if($(element).hasClass('day3')) targetName = "date-hope3-time";

      if(targetName) {
        let $select = $('select[name="' + targetName + '"]');
        $select.prop("selectedIndex", 0); // 時間帯をリセット
        
        // 土日なら「18時以降」を無効化
        $select.find('option:last-child').prop('disabled', isWeekend);
      }

      // デバッグ表示用フォーマット
      var formattedDate = selectedDate.getFullYear() + '-' + 
                          ('0' + (selectedDate.getMonth() + 1)).slice(-2) + '-' + 
                          ('0' + selectedDate.getDate()).slice(-2);
      console.log("選択された日付 (" + targetName + "): " + formattedDate);
    }

    var numberOfMonths = (window.matchMedia && window.matchMedia('(max-device-width: 640px)').matches) ? 1 : 2;

    $(".date_hope").datepicker({
      numberOfMonths: numberOfMonths,
      autoSize: true,
      firstDay: 0, 
      dateFormat: 'yy/mm/dd',
      minDate: '2026/02/13',
      maxDate: '+3m',
      onSelect: function(dateText) {
          var parts = dateText.split('/');
          var parsedDate = new Date(parseInt(parts[0], 10), parseInt(parts[1], 10) - 1, parseInt(parts[2], 10));
          $(this).data('datepicker-date', parsedDate);
          doSomething(this);
      },
      beforeShowDay : function(date) {
        var disableDates = [
          "2025/04/22","2025/04/29","2025/05/03","2025/05/04","2025/05/05","2025/05/06","2025/05/27","2025/06/24","2025/07/21","2025/07/22","2025/08/11","2025/09/15","2025/09/23","2025/09/30","2025/10/13","2025/10/28","2025/11/03","2025/11/24","2025/12/29","2025/12/30","2025/12/31","2026/01/01","2026/01/02","2026/01/03","2026/01/12","2026/02/11","2026/02/23","2026/03/20","2026/04/29","2026/05/03","2026/05/04","2026/05/05","2026/05/06","2026/07/20","2026/08/10","2026/08/11","2026/09/21","2026/09/22","2026/09/23","2026/10/12","2026/11/03","2026/11/23","2026/12/28","2026/12/29","2026/12/30","2026/12/31","2027/01/01","2027/01/02","2027/01/03","2027/01/11","2027/02/11","2027/02/23","2027/03/22"
        ];
        var formatted = $.datepicker.formatDate('yy/mm/dd', date);

        if (date.getDay() === 3) { // 水曜日休診
          return [false, 'ui-state-disabled'];
        }
        return [(disableDates.indexOf(formatted) === -1), "", "診療日"];
      }
    });
    $('.date_hope').attr('readonly', true);
  });