google.load('visualization', '1.0', {'packages':['corechart']});
google.setOnLoadCallback(function(){
  var data = new google.visualization.DataTable();
       data.addColumn('string', '日');
       data.addColumn('number', '推測');
       data.addColumn({type:'string', role:'annotation'});
       data.addColumn({type:'string', role:'annotationText'});
       data.addColumn('number', '推測');
       data.addColumn({type:'string', role:'annotation'});
       data.addColumn({type:'string', role:'annotationText'});
       data.addColumn('number', 'iOS前月');
       data.addColumn({type:'string', role:'annotation'});
       data.addColumn({type:'string', role:'annotationText'});
       data.addColumn('number', 'iOS当月');
       data.addColumn({type:'string', role:'annotation'});
       data.addColumn({type:'string', role:'annotationText'});
       data.addRows([
        ['1日',null,null,null,null,null,null,100,null,null,148,null,null],
['2日',null,null,null,null,null,null,116,null,null,202,null,null],
['3日',null,null,null,null,null,null,108,null,null,246,null,null],
['4日',null,null,null,null,null,null,91,null,null,252,null,null],
['5日',null,null,null,null,null,null,58,null,null,306,null,null],
['6日',null,null,null,null,null,null,33,null,null,258,null,null],
['7日',null,null,null,null,null,null,71,null,null,295,null,null],
['8日',null,null,null,null,null,null,174,null,null,327,null,null],
['9日',null,null,null,null,null,null,321,null,null,225,null,null],
['10日',null,null,null,null,null,null,143,null,null,215,null,null],
['11日',null,null,null,null,null,null,152,'UP!','恋を叶える桜巫女ガチャ〜season1〜ピックアップガチャ第1弾: 04/11 → 04/18',271,null,null],
['12日',null,null,null,null,null,null,163,null,null,199,null,null],
['13日',null,null,null,null,null,null,219,'UP!','恋を叶える桜巫女ガチャ〜season1〜ピックアップガチャ第2弾: 04/13 → 04/18',295,null,null],
['14日',null,null,null,null,null,null,170,null,null,316,null,null],
['15日',null,null,null,null,null,null,278,'UP!','恋を叶える桜巫女ガチャ〜season1〜ピックアップガチャ第3弾: 04/15 → 04/18',397,null,null],
['16日',null,null,null,null,null,null,262,null,null,419,null,null],
['17日',null,null,null,null,null,null,284,'UP!','恋を叶える桜巫女ガチャ〜season2〜: 04/17 → 04/28',374,null,null],
['18日',null,null,null,null,null,null,86,null,null,326,null,null],
['19日',null,null,null,null,null,null,116,'UP!','恋を叶える桜巫女ガチャ〜season2〜ピックアップガチャ第1弾: 04/19 → 04/28',43,null,null],
['20日',null,null,null,null,null,null,152,null,null,56,null,null],
['21日',null,null,null,null,null,null,207,'UP!','恋を叶える桜巫女ガチャ〜season2〜ピックアップガチャ第2弾: 04/21 → 04/28',62,null,null],
['22日',null,null,null,null,null,null,162,null,null,94,null,null],
['23日',null,null,null,null,null,null,215,'UP!','恋を叶える桜巫女ガチャ〜season2〜ピックアップガチャ第3弾: 04/23 → 04/28',89,null,null],
['24日',null,null,null,null,null,null,105,null,null,108,null,null],
['25日',null,null,null,null,null,null,139,null,null,132,null,null],
['26日',null,null,null,null,null,null,177,null,null,101,null,null],
['27日',null,null,null,null,null,null,210,null,null,111,null,null],
['28日',null,null,null,null,null,null,151,null,null,147,null,null],
['29日',null,null,null,null,null,null,156,null,null,145,null,null],
['30日',null,null,null,null,null,null,288,'UP!','日向坂高校へようこそ！影山優佳ピックアップガチャ: 04/30 → 05/06',174,null,null],
['31日',null,null,null,null,null,null,null,null,null,195,null,null]
        ]);
  var options = {
    chartArea: {'width':'85%', 'height':'65%', 'left':60 },
    'pointSize': 3,
    hAxis: { titleTextStyle:{italic:false}, format:'#',ticks: [1,5,10,15,20,25,30] },
    vAxis: { title:'2021年5月ランキング',  titleTextStyle:{italic:false}, format:'#',viewWindow:{min:0,max:500},direction:-1 },
    legend: {position: 'top' },
    tooltip: { trigger: 'both' },
    focusTarget: 'category',
    colors:['skyblue','pink','#2980b9','#e74c3c']
  };

  var chart = new google.visualization.LineChart(document.getElementById('graphField'));
  chart.draw(data, options);

  var lastlogday=31 -1 ;
  var lastlogcat=10;

  if(lastlogday>=0){
    chart.setSelection([{
      row: lastlogday,
      column: lastlogcat
    }]);
  
    google.visualization.events.addListener(chart, 'click', function() {
      if(chart.getSelection()[0]){
        //chart.setSelection(null)
      }
    });
  }

});