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

legenddistanceAlliance['OneWorld'] = 792470;
legenddistanceAlliance['Star Alliance'] = 18745;
legenddistanceAlliance['SkyTeam'] = 13463;
legenddistanceAlliance['No Alliance'] = 66219;
legenddistanceAirline['Qatar Airways'] = 404101;
legenddistanceAirline['British Airways'] = 307060;
legenddistanceAirline['Ryanair UK'] = 5265;
legenddistanceAirline['SAS'] = 13718;
legenddistanceAirline['TAP Portugal'] = 1528;
legenddistanceAirline['EasyJet'] = 25274;
legenddistanceAirline['Finnair'] = 6000;
legenddistanceAirline['Virgin Atlantic'] = 11039;
legenddistanceAirline['Horizon Air'] = 129;
legenddistanceAirline['Delta'] = 1044;
legenddistanceAirline['Frontier Airlines'] = 405;
legenddistanceAirline['United Airlines'] = 1229;
legenddistanceAirline['US Airways'] = 986;
legenddistanceAirline['Iberia'] = 14062;
legenddistanceAirline['Cathay Pacific'] = 12276;
legenddistanceAirline['Cathay Dragon'] = 525;
legenddistanceAirline['Vietnam Airlines'] = 375;
legenddistanceAirline['Monarch'] = 112;
legenddistanceAirline['FlyBe'] = 3643;
legenddistanceAirline['Qantas'] = 15978;
legenddistanceAirline['IcelandAir'] = 3531;
legenddistanceAirline['American Airlines'] = 17600;
legenddistanceAirline['Hawaiian Airlines'] = 263;
legenddistanceAirline['Ryanair'] = 6462;
legenddistanceAirline['Sri Lankan Airlines'] = 6726;
legenddistanceAirline['Cinnamon Air'] = 128;
legenddistanceAirline['Air Astana'] = 2595;
legenddistanceAirline['Somon Air'] = 542;
legenddistanceAirline['Swiss'] = 468;
legenddistanceAirline['Jetstar Airways'] = 1474;
legenddistanceAirline['Air New Zealand'] = 630;
legenddistanceAirline['Air Malta'] = 1281;
legenddistanceAirline['Malaysia Airlines'] = 5902;
legenddistanceAirline['Aer Lingus'] = 3549;
legenddistanceAirline['Juneyao Airlines'] = 780;
legenddistanceAirline['Jetstar Pacific'] = 388;
legenddistanceAirline['VietJet Air'] = 343;
legenddistanceAirline['Smartwings'] = 775;
legenddistanceAirline['Air Baltic'] = 3333;
legenddistanceAirline['Volotea'] = 219;
legenddistanceAirline['Norwegian Air International'] = 611;
legenddistanceAirline['Cebu Pacific'] = 350;
legenddistanceAirline['Air Asia Zest'] = 814;
legenddistanceAirline['Jeju Air'] = 1581;
legenddistanceAirline['Loganair'] = 54;
legenddistanceAirline['Lufthansa'] = 955;
legenddistanceAirline['Brussels Airlines'] = 217;
legenddistanceAirline['Korean Air'] = 280;
legenddistanceAirline['Jin Air'] = 180;
legenddistanceAirline['EuroWings'] = 794;
legenddistanceAirline['Wizz Air'] = 910;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 425;
legenddistanceAirline['Luxair'] = 299;
legenddistanceAirline['Air Europa'] = 300;
legenddistanceAirline['Japan Airlines'] = 1254;
legenddistanceAirline['Sky Express'] = 135;
legenddistanceAirline['OneWorld'] = 792470;
legenddistanceAirline['Star Alliance'] = 18745;
legenddistanceAirline['SkyTeam'] = 13463;
legenddistanceAirline['No Alliance'] = 66219;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 89,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (792470)',
						categories: ['Qatar Airways','British Airways','Iberia','Cathay Pacific','Qantas','American Airlines','Others'],
						data: [45.4,34.5,1.6,1.4,1.8,2,2.5],
						color: colors[0]
					}
				} ,{
					y: 2.1,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (18745)',
						categories: ['SAS','Others'],
						data: [1.5,0.6],
						color: colors[1]
					}
				} ,{
					y: 1.5,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (13463)',
						categories: ['Virgin Atlantic','Others'],
						data: [1.2,0.1],
						color: colors[2]
					}
				} ,{
					y: 7.4,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (66219)',
						categories: ['EasyJet','Others'],
						data: [2.8,4.4],
						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 "";
	}
}