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',184,956,184,null],
['2日',360,null,null,null],
['3日',648,252,null,null],
['4日',671,442,null,null],
['5日',717,228,null,null],
['6日',825,437,null,null],
['7日',null,243,null,null],
['8日',296,470,null,null],
['9日',543,682,null,null],
['10日',708,839,null,null],
['11日',271,null,null,null],
['12日',453,752,null,null],
['13日',715,365,null,null],
['14日',542,609,null,null],
['15日',877,695,null,null],
['16日',799,805,null,null],
['17日',703,236,null,null],
['18日',264,268,null,null],
['19日',396,447,null,null],
['20日',121,209,121,null],
['21日',260,246,null,null],
['22日',265,449,null,null],
['23日',227,684,null,null],
['24日',387,520,null,null],
['25日',632,766,null,null],
['26日',242,678,null,null],
['27日',255,236,null,null],
['28日',334,457,null,null],
['29日',523,670,null,null],
['30日',783,686,null,null],
['31日',null,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:1000},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)
      }
    });
  }

});