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',135,361,135,null],
['3日',null,380,164,null],
['4日',194,390,194,null],
['5日',212,456,null,null],
['6日',243,473,null,null],
['7日',268,355,null,null],
['8日',272,414,null,null],
['9日',307,370,null,null],
['10日',275,326,null,null],
['11日',282,315,null,null],
['12日',309,328,null,null],
['13日',263,448,null,null],
['14日',226,368,null,null],
['15日',239,333,null,null],
['16日',293,460,null,null],
['17日',324,467,null,null],
['18日',223,281,null,null],
['19日',195,354,195,null],
['20日',223,330,null,null],
['21日',177,348,177,null],
['22日',207,332,null,null],
['23日',259,433,null,null],
['24日',270,553,null,null],
['25日',333,545,null,null],
['26日',354,84,null,84],
['27日',334,159,null,159],
['28日',265,217,null,null],
['29日',189,152,189,152],
['30日',256,225,null,null],
['31日',284,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:600},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)
      }
    });
  }

});