var legenddistanceAirline = {};
var legenddistanceAlliance = {};

legenddistanceAlliance['OneWorld'] = 22242;
legenddistanceAlliance['Star Alliance'] = 76281;
legenddistanceAlliance['SkyTeam'] = 936;
legenddistanceAlliance['No Alliance'] = 33274;
legenddistanceAirline['EasyJet'] = 862;
legenddistanceAirline['Swiss'] = 24914;
legenddistanceAirline['Thai'] = 27156;
legenddistanceAirline['Singapore Airlines'] = 5283;
legenddistanceAirline['Scoot'] = 609;
legenddistanceAirline['Air Asia'] = 4698;
legenddistanceAirline['Lufthansa'] = 3067;
legenddistanceAirline['Turkish Airlines'] = 6211;
legenddistanceAirline['British Airways'] = 401;
legenddistanceAirline['Jet Airways'] = 12732;
legenddistanceAirline['Aer Lingus'] = 1124;
legenddistanceAirline['Vietnam Airlines'] = 649;
legenddistanceAirline['EasyJet'] = 1011;
legenddistanceAirline['Malaysia Airlines'] = 1227;
legenddistanceAirline['Firefly'] = 451;
legenddistanceAirline['Thai Air Asia'] = 331;
legenddistanceAirline['Asiana Airlines'] = 510;
legenddistanceAirline['United Airlines'] = 783;
legenddistanceAirline['Japan Airlines'] = 1496;
legenddistanceAirline['Jet2'] = 381;
legenddistanceAirline['Ryanair'] = 849;
legenddistanceAirline['Cathay Pacific'] = 17978;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 287;
legenddistanceAirline['Cathay Dragon'] = 1140;
legenddistanceAirline['Etihad'] = 8460;
legenddistanceAirline['Philippine Airlines'] = 1418;
legenddistanceAirline['Air Philippines'] = 348;
legenddistanceAirline['Air China'] = 1237;
legenddistanceAirline['All Nippon Airways'] = 7120;
legenddistanceAirline['OneWorld'] = 22242;
legenddistanceAirline['Star Alliance'] = 76281;
legenddistanceAirline['SkyTeam'] = 936;
legenddistanceAirline['No Alliance'] = 33274;


$(function () {
    var chart;
    $(document).ready(function() {

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 16.8,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (22242)',
						categories: ['Japan Airlines','Cathay Pacific','Others'],
						data: [1.1,13.5,2.1],
						color: colors[0]
					}
				} ,{
					y: 57.5,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (76281)',
						categories: ['Swiss','Thai','Singapore Airlines','Lufthansa','Turkish Airlines','All Nippon Airways','Others'],
						data: [18.8,20.5,4,2.3,4.7,5.4,1.9],
						color: colors[1]
					}
				} ,{
					y: 0.7,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (936)',
						categories: ['Others'],
						data: [0.7],
						color: colors[2]
					}
				} ,{
					y: 25.1,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (33274)',
						categories: ['Air Asia','Jet Airways','Etihad','Philippine Airlines','Others'],
						data: [3.5,9.6,6.4,1.1,4.4],
						color: colors[3]
					}
				} 

		];


        // Build the data arrays
        var allianceData = [];
        var carrierData = [];
        for (var i = 0; i < data.length; i++) {

            // add browser data
            allianceData.push({
                name: categories[i],
                y: data[i].y,
                color: data[i].color
            });

            // add version data
            for (var j = 0; j < data[i].drilldown.data.length; j++) {
                var brightness = 0.2 - (j / data[i].drilldown.data.length) / 5 ;
                carrierData.push({
                    name: data[i].drilldown.categories[j],
                    y: data[i].drilldown.data[j],
                    color: Highcharts.Color(data[i].color).brighten(brightness).get()
                });
            }
        }

        // Create the chart
        chart = new Highcharts.Chart({
            chart: {
                renderTo: 'airline_distance',
                type: 'pie'
            },
            title: {
                text: ''
            },
            yAxis: {
                title: {
                    text: ''
                }
            },
            plotOptions: {
                pie: {
                    allowPointSelect: true,
                    cursor: 'pointer',
                    dataLabels: {
                        enabled: true
                    },
                    showInLegend: false
                }
            },
            tooltip: {
        	    valueSuffix: '%'
            },
            series: [{
                name: 'proportion',
                data: allianceData,
                size: '80%',
                dataLabels: {
                    formatter: function() {
                        return this.y > 5 ? this.point.name : null;
                    },
                    color: 'white',
                    distance: -75
                }
            }, {
                name: 'proportion',
                data: carrierData,
                innerSize: '80%',
                dataLabels: {
                    formatter: function() {
                        // display only if larger than 1
                        return this.y > 1 ? '<b>'+ this.point.name +':</b> '+ this.y +
                        	'%' + getCountdistance(this.point.name) : null;
                    }
                }
            }]
        });
    });

});

function getCountdistance(airline)
{
	if(legenddistanceAirline[airline])
	{
		return " (" + parseInt(legenddistanceAirline[airline]).toLocaleString() + ")";
	}
	else
	{
		return "";
	}
}