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,424,null,null],
['2日',null,633,null,null],
['3日',423,593,null,null],
['4日',606,856,null,null],
['5日',304,431,null,null],
['6日',281,625,null,null],
['7日',402,588,null,null],
['8日',614,404,null,null],
['9日',351,497,null,null],
['10日',323,378,null,null],
['11日',351,464,null,null],
['12日',462,555,null,null],
['13日',353,465,null,null],
['14日',508,446,null,null],
['15日',293,543,null,null],
['16日',235,775,null,null],
['17日',243,351,null,null],
['18日',327,372,null,null],
['19日',268,567,null,null],
['20日',259,842,null,null],
['21日',361,330,null,null],
['22日',386,485,null,null],
['23日',349,713,null,null],
['24日',450,609,null,null],
['25日',598,403,null,null],
['26日',283,644,null,null],
['27日',345,923,null,null],
['28日',481,null,null,null],
['29日',624,null,null,null],
['30日',508,375,null,null],
['31日',693,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)
      }
    });
  }

});