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,278,null,null],
['2日',null,268,null,null],
['3日',null,284,null,null],
['4日',null,219,null,null],
['5日',null,142,null,142],
['6日',null,158,null,158],
['7日',null,205,null,null],
['8日',77,211,77,null],
['9日',131,234,131,null],
['10日',218,217,null,null],
['11日',173,211,173,null],
['12日',212,234,null,null],
['13日',202,238,null,null],
['14日',161,222,161,null],
['15日',null,280,101,null],
['16日',176,259,176,null],
['17日',216,190,null,190],
['18日',203,225,null,null],
['19日',186,202,186,null],
['20日',243,223,null,null],
['21日',227,265,null,null],
['22日',209,285,null,null],
['23日',204,276,null,null],
['24日',219,152,null,152],
['25日',214,215,null,null],
['26日',214,228,null,null],
['27日',191,218,191,null],
['28日',null,252,124,null],
['29日',null,246,135,null],
['30日',171,237,171,null],
['31日',248,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)
      }
    });
  }

});