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,208,138,null],
['2日',null,226,186,null],
['3日',null,280,114,null],
['4日',126,158,126,158],
['5日',246,218,null,null],
['6日',198,195,198,195],
['7日',233,null,null,156],
['8日',127,123,127,123],
['9日',156,202,156,null],
['10日',228,245,null,null],
['11日',228,373,null,null],
['12日',272,166,null,166],
['13日',208,224,null,null],
['14日',240,161,null,161],
['15日',184,213,184,null],
['16日',null,138,148,138],
['17日',null,null,93,107],
['18日',146,117,146,117],
['19日',233,218,null,null],
['20日',209,224,null,null],
['21日',125,306,125,null],
['22日',null,300,138,null],
['23日',180,179,180,179],
['24日',220,null,null,164],
['25日',209,null,null,155],
['26日',186,null,186,68],
['27日',201,null,null,72],
['28日',195,155,195,155],
['29日',230,209,null,null],
['30日',287,259,null,null],
['31日',147,null,147,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:400},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)
      }
    });
  }

});