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,295,null,null],
['2日',null,161,null,161],
['3日',null,209,null,null],
['4日',null,295,null,null],
['5日',null,366,null,null],
['6日',null,387,null,null],
['7日',205,361,null,null],
['8日',214,317,null,null],
['9日',150,395,150,null],
['10日',196,287,196,null],
['11日',226,181,null,181],
['12日',266,253,null,null],
['13日',332,331,null,null],
['14日',92,320,92,null],
['15日',112,182,112,182],
['16日',245,250,null,null],
['17日',265,293,null,null],
['18日',176,379,176,null],
['19日',254,411,null,null],
['20日',258,449,null,null],
['21日',280,405,null,null],
['22日',263,402,null,null],
['23日',228,448,null,null],
['24日',293,490,null,null],
['25日',253,47,null,47],
['26日',265,null,null,69],
['27日',238,null,null,160],
['28日',56,182,56,182],
['29日',null,235,96,null],
['30日',170,318,170,null],
['31日',258,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: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)
      }
    });
  }

});