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,497,null,null],
['2日',null,411,null,null],
['3日',309,304,null,null],
['4日',348,400,null,null],
['5日',363,462,null,null],
['6日',343,592,null,null],
['7日',421,774,null,null],
['8日',496,578,null,null],
['9日',444,521,null,null],
['10日',423,340,null,null],
['11日',647,403,null,null],
['12日',515,282,null,null],
['13日',570,422,null,null],
['14日',699,463,null,null],
['15日',507,523,null,null],
['16日',299,489,null,null],
['17日',349,325,null,null],
['18日',340,350,null,null],
['19日',488,392,null,null],
['20日',624,387,null,null],
['21日',246,335,null,null],
['22日',312,392,null,null],
['23日',374,489,null,null],
['24日',320,342,null,null],
['25日',422,289,null,null],
['26日',501,221,null,null],
['27日',325,302,null,null],
['28日',359,405,null,null],
['29日',266,373,null,null],
['30日',322,374,null,null],
['31日',452,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:800},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)
      }
    });
  }

});