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('number', '推測');
       data.addColumn('number', 'iOS前月');
       data.addColumn('number', 'iOS当月');
       data.addRows([
        ['1日',null,255,null,null],
['2日',null,144,null,144],
['3日',null,232,null,null],
['4日',null,81,null,81],
['5日',177,null,177,128],
['6日',232,null,null,154],
['7日',67,null,67,161],
['8日',null,145,96,145],
['9日',null,204,171,null],
['10日',null,200,153,200],
['11日',187,233,187,null],
['12日',204,247,null,null],
['13日',215,252,null,null],
['14日',160,232,160,null],
['15日',188,222,188,null],
['16日',207,251,null,null],
['17日',196,244,196,null],
['18日',244,216,null,null],
['19日',240,204,null,null],
['20日',241,252,null,null],
['21日',210,278,null,null],
['22日',137,180,137,180],
['23日',235,252,null,null],
['24日',249,264,null,null],
['25日',247,182,null,182],
['26日',208,245,null,null],
['27日',186,242,186,null],
['28日',null,280,123,null],
['29日',null,230,151,null],
['30日',181,227,181,null],
['31日',214,null,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:'2024年4月ランキング',  titleTextStyle:{italic:false}, format:'#',viewWindow:{min:0,max:300},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=30 -1 ;
  var lastlogcat=2;

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

});