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,238,null,null],
['2日',null,40,null,40],
['3日',null,null,null,77],
['4日',96,null,96,27],
['5日',null,null,118,36],
['6日',null,null,26,74],
['7日',null,null,62,83],
['8日',null,null,102,98],
['9日',143,null,143,44],
['10日',210,null,null,63],
['11日',204,null,null,96],
['12日',50,null,50,59],
['13日',null,null,85,130],
['14日',null,200,163,200],
['15日',null,283,51,null],
['16日',null,93,91,93],
['17日',null,null,41,27],
['18日',null,null,61,62],
['19日',null,null,132,100],
['20日',null,null,160,153],
['21日',null,null,145,164],
['22日',null,null,109,78],
['23日',null,null,152,32],
['24日',100,null,100,65],
['25日',209,106,null,106],
['26日',247,223,null,null],
['27日',162,182,162,182],
['28日',214,190,null,190],
['29日',255,270,null,null],
['30日',244,219,null,null],
['31日',266,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)
      }
    });
  }

});