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,321,null,null],
['2日',null,311,null,null],
['3日',357,336,null,null],
['4日',279,344,null,null],
['5日',342,368,null,null],
['6日',351,284,null,null],
['7日',328,364,null,null],
['8日',277,281,null,null],
['9日',329,268,null,null],
['10日',316,275,null,null],
['11日',329,335,null,null],
['12日',358,358,null,null],
['13日',379,306,null,null],
['14日',390,323,null,null],
['15日',319,326,null,null],
['16日',339,333,null,null],
['17日',425,359,null,null],
['18日',345,357,null,null],
['19日',340,354,null,null],
['20日',312,271,null,null],
['21日',370,350,null,null],
['22日',400,344,null,null],
['23日',325,330,null,null],
['24日',356,421,null,null],
['25日',282,324,null,null],
['26日',397,351,null,null],
['27日',385,412,null,null],
['28日',483,402,null,null],
['29日',417,280,null,null],
['30日',366,328,null,null],
['31日',327,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:500},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)
      }
    });
  }

});