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',315,328,null,null],
['2日',133,118,133,118],
['3日',null,null,141,146],
['4日',null,null,154,154],
['5日',null,177,150,177],
['6日',180,226,180,null],
['7日',233,242,null,null],
['8日',209,167,null,167],
['9日',232,194,null,194],
['10日',221,240,null,null],
['11日',207,214,null,null],
['12日',235,216,null,null],
['13日',277,233,null,null],
['14日',281,208,null,null],
['15日',318,224,null,null],
['16日',301,276,null,null],
['17日',190,149,190,149],
['18日',167,177,167,177],
['19日',236,212,null,null],
['20日',227,216,null,null],
['21日',229,260,null,null],
['22日',262,261,null,null],
['23日',189,219,189,null],
['24日',208,262,null,null],
['25日',222,247,null,null],
['26日',180,163,180,163],
['27日',229,212,null,null],
['28日',265,202,null,null],
['29日',308,254,null,null],
['30日',221,283,null,null],
['31日',269,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:350},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)
      }
    });
  }

});