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,494,null,null],
['2日',896,679,null,null],
['3日',417,427,null,null],
['4日',211,410,null,null],
['5日',314,574,null,null],
['6日',526,854,null,null],
['7日',282,270,null,null],
['8日',415,457,null,null],
['9日',573,214,null,null],
['10日',630,336,null,null],
['11日',925,563,null,null],
['12日',846,803,null,null],
['13日',833,694,null,null],
['14日',473,581,null,null],
['15日',419,518,null,null],
['16日',571,600,null,null],
['17日',652,471,null,null],
['18日',950,500,null,null],
['19日',587,558,null,null],
['20日',376,566,null,null],
['21日',490,478,null,null],
['22日',408,624,null,null],
['23日',587,460,null,null],
['24日',498,486,null,null],
['25日',385,325,null,null],
['26日',555,349,null,null],
['27日',423,504,null,null],
['28日',670,537,null,null],
['29日',762,806,null,null],
['30日',1000,727,null,null],
['31日',447,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:1100},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)
      }
    });
  }

});