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,847,'UP!','一騎当千の黒騎士: 04/01 → 04/30',345,null,null],
['2日',null,null,null,null,null,null,222,null,null,388,null,null],
['3日',null,null,null,null,null,null,226,null,null,424,null,null],
['4日',null,null,null,null,null,null,294,null,null,498,null,null],
['5日',null,null,null,null,null,null,370,null,null,633,'UP!','至高★オールスター召喚（第2弾）: 05/05 → 05/09'],
['6日',null,null,null,null,null,null,373,null,null,443,null,null],
['7日',null,null,null,null,null,null,515,null,null,524,null,null],
['8日',null,null,null,null,null,null,548,null,null,545,null,null],
['9日',null,null,null,null,null,null,582,null,null,520,null,null],
['10日',null,null,null,null,null,null,661,null,null,582,'UP!','至高★オールスター召喚（第3弾）: 05/10 → 05/15'],
['11日',null,null,null,null,null,null,488,null,null,626,null,null],
['12日',null,null,null,null,null,null,498,null,null,844,null,null],
['13日',null,null,null,null,null,null,491,null,null,690,null,null],
['14日',null,null,null,null,null,null,504,null,null,914,null,null],
['15日',null,null,null,null,null,null,524,null,null,887,'UP!','戦姫の残滓を秘めた剣斧: 05/15 → 05/30'],
['16日',null,null,null,null,null,null,268,null,null,399,null,null],
['17日',null,null,null,null,null,null,332,null,null,230,null,null],
['18日',null,null,null,null,null,null,432,null,null,331,null,null],
['19日',null,null,null,null,null,null,418,null,null,451,null,null],
['20日',null,null,null,null,null,null,403,null,null,418,null,null],
['21日',null,null,null,null,null,null,525,null,null,472,null,null],
['22日',null,null,null,null,null,null,606,null,null,515,null,null],
['23日',null,null,null,null,null,null,551,null,null,532,null,null],
['24日',null,null,null,null,null,null,615,null,null,527,null,null],
['25日',null,null,null,null,null,null,675,null,null,546,null,null],
['26日',null,null,null,null,null,null,367,null,null,636,null,null],
['27日',null,null,null,null,null,null,341,null,null,408,null,null],
['28日',null,null,null,null,null,null,313,null,null,409,null,null],
['29日',null,null,null,null,null,null,350,null,null,474,'UP!','神聖樹の杖の真価 装備召喚: 05/29 → 06/04'],
['30日',null,null,null,null,null,null,354,'UP!','至高★オールスター召喚（第1弾）: 04/30 → 05/04',387,null,null],
['31日',null,null,null,null,null,null,null,null,null,395,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:'2020年5月ランキング',  titleTextStyle:{italic:false}, format:'#',viewWindow:{min:0,max:1000},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)
      }
    });
  }

});