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,408,49,null],
['2日',null,307,93,null],
['3日',null,367,122,null],
['4日',null,220,129,null],
['5日',null,270,135,null],
['6日',null,378,146,null],
['7日',null,399,106,null],
['8日',null,438,131,null],
['9日',null,406,177,null],
['10日',null,408,184,null],
['11日',135,120,135,120],
['12日',217,150,null,150],
['13日',306,219,null,null],
['14日',177,222,177,null],
['15日',235,260,null,null],
['16日',301,289,null,null],
['17日',283,304,null,null],
['18日',312,287,null,null],
['19日',340,465,null,null],
['20日',358,406,null,null],
['21日',323,293,null,null],
['22日',330,339,null,null],
['23日',421,479,null,null],
['24日',274,409,null,null],
['25日',296,310,null,null],
['26日',346,380,null,null],
['27日',362,422,null,null],
['28日',310,393,null,null],
['29日',384,433,null,null],
['30日',488,455,null,null],
['31日',402,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)
      }
    });
  }

});