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

legenddistanceAlliance['OneWorld'] = 183255;
legenddistanceAlliance['Star Alliance'] = 123836;
legenddistanceAlliance['SkyTeam'] = 7453;
legenddistanceAlliance['No Alliance'] = 12314;
legenddistanceAirline['Lufthansa'] = 60140;
legenddistanceAirline['US Airways'] = 44062;
legenddistanceAirline['British Airways'] = 65020;
legenddistanceAirline['American Airlines'] = 48288;
legenddistanceAirline['JetBlue'] = 186;
legenddistanceAirline['GermanWings'] = 1213;
legenddistanceAirline['Air Berlin'] = 4253;
legenddistanceAirline['Aer Lingus'] = 955;
legenddistanceAirline['Virgin America'] = 446;
legenddistanceAirline['Qantas'] = 12774;
legenddistanceAirline['Virgin Express'] = 1690;
legenddistanceAirline['Swiss'] = 5018;
legenddistanceAirline['Continental'] = 3653;
legenddistanceAirline['United Airlines'] = 14278;
legenddistanceAirline['Air France'] = 300;
legenddistanceAirline['LOT Polish Airlines'] = 570;
legenddistanceAirline['Brussels Airlines'] = 3846;
legenddistanceAirline['Alitalia'] = 6067;
legenddistanceAirline['Luxair'] = 2322;
legenddistanceAirline['Etihad'] = 3022;
legenddistanceAirline['Singapore Airlines'] = 21141;
legenddistanceAirline['Air Canada'] = 11389;
legenddistanceAirline['Finnair'] = 476;
legenddistanceAirline['SAS'] = 1258;
legenddistanceAirline['Iberia'] = 8382;
legenddistanceAirline['Delta'] = 1086;
legenddistanceAirline['VietJet Air'] = 1733;
legenddistanceAirline['Jetstar Pacific'] = 747;
legenddistanceAirline['TAP Portugal'] = 2158;
legenddistanceAirline['Austrian Airlines'] = 385;
legenddistanceAirline['OneWorld'] = 183255;
legenddistanceAirline['Star Alliance'] = 123836;
legenddistanceAirline['SkyTeam'] = 7453;
legenddistanceAirline['No Alliance'] = 12314;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 56.1,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (183255)',
						categories: ['US Airways','British Airways','American Airlines','Air Berlin','Qantas','Iberia','Others'],
						data: [13.5,19.9,14.8,1.3,3.9,2.6,0.1],
						color: colors[0]
					}
				} ,{
					y: 37.9,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (123836)',
						categories: ['Lufthansa','Swiss','Continental','United Airlines','Brussels Airlines','Singapore Airlines','Air Canada','Others'],
						data: [18.4,1.5,1.1,4.4,1.2,6.5,3.5,1.4],
						color: colors[1]
					}
				} ,{
					y: 2.3,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (7453)',
						categories: ['Alitalia','Others'],
						data: [1.9,0.4],
						color: colors[2]
					}
				} ,{
					y: 3.8,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (12314)',
						categories: ['Others'],
						data: [3.7],
						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 "";
	}
}