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,175,null,175],
['2日',null,206,null,null],
['3日',258,211,null,null],
['4日',204,211,null,null],
['5日',208,211,null,null],
['6日',232,205,null,null],
['7日',196,165,196,165],
['8日',209,181,null,181],
['9日',216,226,null,null],
['10日',190,208,190,null],
['11日',null,195,196,195],
['12日',null,219,186,null],
['13日',null,154,162,154],
['14日',196,196,196,196],
['15日',212,232,null,null],
['16日',191,213,191,null],
['17日',218,188,null,188],
['18日',236,158,null,158],
['19日',216,205,null,null],
['20日',154,157,154,157],
['21日',null,null,180,174],
['22日',null,null,197,173],
['23日',null,null,196,176],
['24日',192,171,192,171],
['25日',201,201,null,null],
['26日',159,151,159,151],
['27日',175,203,175,null],
['28日',206,212,null,null],
['29日',202,185,null,185],
['30日',212,162,null,162],
['31日',180,null,180,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:300},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)
      }
    });
  }

});