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,300,null,null],
['2日',193,211,193,null],
['3日',null,190,156,190],
['4日',null,null,153,169],
['5日',null,null,143,159],
['6日',null,null,119,131],
['7日',137,null,137,153],
['8日',221,199,null,199],
['9日',219,263,null,null],
['10日',233,332,null,null],
['11日',236,286,null,null],
['12日',194,313,194,null],
['13日',224,326,null,null],
['14日',222,249,null,null],
['15日',236,289,null,null],
['16日',176,260,176,null],
['17日',null,282,169,null],
['18日',null,272,135,null],
['19日',null,293,196,null],
['20日',null,201,199,null],
['21日',189,175,189,175],
['22日',257,null,null,127],
['23日',293,190,null,190],
['24日',258,202,null,null],
['25日',269,217,null,null],
['26日',299,269,null,null],
['27日',328,331,null,null],
['28日',280,279,null,null],
['29日',298,280,null,null],
['30日',296,304,null,null],
['31日',267,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)
      }
    });
  }

});