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,243,129,null],
['2日',null,28,65,28],
['3日',null,null,87,37],
['4日',null,null,119,70],
['5日',169,null,169,88],
['6日',202,null,null,136],
['7日',243,154,null,154],
['8日',309,203,null,null],
['9日',287,201,null,null],
['10日',309,221,null,null],
['11日',360,208,null,null],
['12日',379,237,null,null],
['13日',418,136,null,136],
['14日',427,null,null,138],
['15日',461,null,null,171],
['16日',495,null,null,122],
['17日',375,146,null,146],
['18日',407,203,null,null],
['19日',23,231,23,null],
['20日',null,244,34,null],
['21日',null,219,69,null],
['22日',null,273,81,null],
['23日',null,289,105,null],
['24日',null,341,94,null],
['25日',null,339,113,null],
['26日',null,295,199,null],
['27日',null,17,153,17],
['28日',null,null,165,28],
['29日',null,null,176,48],
['30日',186,67,186,67],
['31日',217,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=4;

  if(lastlogday>=0){
    chart.setSelection([{
      row: lastlogday,
      column: lastlogcat
    }]);
  
    google.visualization.events.addListener(chart, 'click', function() {
      if(chart.getSelection()[0]){
        //chart.setSelection(null)
      }
    });
  }

});