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,179,null,179],
['2日',null,218,null,null],
['3日',null,247,null,null],
['4日',null,307,null,null],
['5日',null,110,null,110],
['6日',null,null,null,139],
['7日',null,null,null,154],
['8日',203,185,null,185],
['9日',222,249,null,null],
['10日',132,276,132,null],
['11日',237,241,null,null],
['12日',359,209,null,null],
['13日',431,194,null,194],
['14日',324,209,null,null],
['15日',156,205,156,null],
['16日',null,254,98,null],
['17日',null,180,120,180],
['18日',173,212,173,null],
['19日',218,260,null,null],
['20日',229,157,null,157],
['21日',232,null,null,192],
['22日',124,149,124,149],
['23日',null,214,82,null],
['24日',null,274,138,null],
['25日',155,288,155,null],
['26日',219,328,null,null],
['27日',227,130,null,130],
['28日',217,null,null,111],
['29日',220,135,null,135],
['30日',122,221,122,null],
['31日',null,null,116,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: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=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)
      }
    });
  }

});