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,333,null,null],
['2日',356,327,null,null],
['3日',382,313,null,null],
['4日',358,304,null,null],
['5日',256,314,null,null],
['6日',238,297,null,null],
['7日',248,217,null,null],
['8日',274,244,null,null],
['9日',286,280,null,null],
['10日',309,265,null,null],
['11日',266,272,null,null],
['12日',204,273,null,null],
['13日',169,301,169,null],
['14日',248,382,null,null],
['15日',154,235,154,null],
['16日',264,136,null,136],
['17日',129,248,129,null],
['18日',null,209,73,null],
['19日',183,304,183,null],
['20日',232,236,null,null],
['21日',263,231,null,null],
['22日',256,238,null,null],
['23日',249,202,null,null],
['24日',264,228,null,null],
['25日',243,316,null,null],
['26日',243,379,null,null],
['27日',271,329,null,null],
['28日',250,325,null,null],
['29日',264,296,null,null],
['30日',280,312,null,null],
['31日',312,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:400},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)
      }
    });
  }

});