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,221,null,null],
['2日',null,314,null,null],
['3日',570,429,null,null],
['4日',665,544,null,null],
['5日',509,356,null,null],
['6日',524,456,null,null],
['7日',461,330,null,null],
['8日',410,400,null,null],
['9日',312,284,null,null],
['10日',234,367,null,null],
['11日',295,367,null,null],
['12日',226,222,null,null],
['13日',275,227,null,null],
['14日',330,303,null,null],
['15日',421,307,null,null],
['16日',434,217,null,null],
['17日',371,305,null,null],
['18日',420,285,null,null],
['19日',476,222,null,null],
['20日',333,142,null,142],
['21日',221,204,null,null],
['22日',274,246,null,null],
['23日',249,356,null,null],
['24日',284,272,null,null],
['25日',419,353,null,null],
['26日',245,488,null,null],
['27日',229,658,null,null],
['28日',219,872,null,null],
['29日',248,null,null,null],
['30日',220,225,null,null],
['31日',173,null,173,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:900},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)
      }
    });
  }

});