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

legenddistanceAlliance['OneWorld'] = 1063834;
legenddistanceAlliance['Star Alliance'] = 60864;
legenddistanceAlliance['SkyTeam'] = 19964;
legenddistanceAlliance['No Alliance'] = 218175;
legenddistanceAirline['AIRPORT-OPERATED'] = 8865;
legenddistanceAirline['British Airways'] = 558088;
legenddistanceAirline['Qantas'] = 226608;
legenddistanceAirline['Malaysia Airlines'] = 52884;
legenddistanceAirline['Singapore Airlines'] = 34467;
legenddistanceAirline['Vietnam Airlines'] = 1505;
legenddistanceAirline['Cathay Pacific'] = 85194;
legenddistanceAirline['Cathay Dragon'] = 4760;
legenddistanceAirline['Thai'] = 12528;
legenddistanceAirline['Air France'] = 9629;
legenddistanceAirline['Unknown'] = 2514;
legenddistanceAirline['Thomas Cook (MT)'] = 10626;
legenddistanceAirline['Tunisair'] = 3642;
legenddistanceAirline['Afriqyah Airways'] = 631;
legenddistanceAirline['Buraq Air'] = 834;
legenddistanceAirline['Libyan Arab Airlines'] = 399;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 4902;
legenddistanceAirline['TAP Portugal'] = 10018;
legenddistanceAirline['Cyprus Airways'] = 646;
legenddistanceAirline['Jet2'] = 3900;
legenddistanceAirline['EasyJet'] = 696;
legenddistanceAirline['Britannia Airways'] = 1508;
legenddistanceAirline['TUI Airways'] = 1490;
legenddistanceAirline['Monarch'] = 3518;
legenddistanceAirline['Wizz Air'] = 2890;
legenddistanceAirline['JetStarAsia'] = 1404;
legenddistanceAirline['Silkair'] = 1404;
legenddistanceAirline['Air Chathams'] = 2822;
legenddistanceAirline['Alaska Airlines'] = 10659;
legenddistanceAirline['Eurostar'] = 410;
legenddistanceAirline['Brussels Airlines'] = 768;
legenddistanceAirline['Austrian Airlines'] = 1152;
legenddistanceAirline['Emirates'] = 127236;
legenddistanceAirline['Qatar Airways'] = 83469;
legenddistanceAirline['Swiss'] = 923;
legenddistanceAirline['Virgin Australia'] = 30295;
legenddistanceAirline['Air North'] = 690;
legenddistanceAirline['Jetstar Airways'] = 4447;
legenddistanceAirline['BMI British Midland'] = 331;
legenddistanceAirline['Air Canada'] = 469;
legenddistanceAirline['Hawaiian Airlines'] = 422;
legenddistanceAirline['American Airlines'] = 40592;
legenddistanceAirline['US Airways'] = 369;
legenddistanceAirline['Aer Lingus'] = 216;
legenddistanceAirline['Rex'] = 2802;
legenddistanceAirline['Wideroe'] = 382;
legenddistanceAirline['SAS'] = 208;
legenddistanceAirline['Diners Club'] = 694;
legenddistanceAirline['Finnair'] = 1211;
legenddistanceAirline['Thomson Airways'] = 1736;
legenddistanceAirline['EuroWings'] = 1056;
legenddistanceAirline['Delta'] = 3928;
legenddistanceAirline['OneWorld'] = 1063834;
legenddistanceAirline['Star Alliance'] = 60864;
legenddistanceAirline['SkyTeam'] = 19964;
legenddistanceAirline['No Alliance'] = 218175;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 78.1,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (1063834)',
						categories: ['British Airways','Qantas','Malaysia Airlines','Cathay Pacific','Qatar Airways','American Airlines','Others'],
						data: [41,16.6,3.9,6.3,6.1,3,1.2],
						color: colors[0]
					}
				} ,{
					y: 4.5,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (60864)',
						categories: ['Singapore Airlines','Others'],
						data: [2.5,1.9],
						color: colors[1]
					}
				} ,{
					y: 1.5,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (19964)',
						categories: ['Others'],
						data: [1.5],
						color: colors[2]
					}
				} ,{
					y: 16,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (218175)',
						categories: ['Emirates','Virgin Australia','Others'],
						data: [9.3,2.2,4.5],
						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 "";
	}
}