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

legenddistanceAlliance['OneWorld'] = 55447;
legenddistanceAlliance['Star Alliance'] = 235716;
legenddistanceAlliance['SkyTeam'] = 26934;
legenddistanceAlliance['No Alliance'] = 65338;
legenddistanceAirline['Austrian Airlines'] = 72727;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 1744;
legenddistanceAirline['Lufthansa'] = 28868;
legenddistanceAirline['EasyJet'] = 1554;
legenddistanceAirline['Emirates'] = 9384;
legenddistanceAirline['TWA'] = 12247;
legenddistanceAirline['British Airways'] = 53425;
legenddistanceAirline['Southwest'] = 3819;
legenddistanceAirline['Alitalia'] = 2828;
legenddistanceAirline['Lauda Air (NG)'] = 24930;
legenddistanceAirline['Air France'] = 10480;
legenddistanceAirline['Olympic Airlines'] = 1970;
legenddistanceAirline['Czech Airlines'] = 1970;
legenddistanceAirline['Air China'] = 1237;
legenddistanceAirline['Delta'] = 8456;
legenddistanceAirline['Air Canada'] = 11773;
legenddistanceAirline['Ryanair'] = 1712;
legenddistanceAirline['Tunisair'] = 1804;
legenddistanceAirline['Tyrolean Airways'] = 220;
legenddistanceAirline['Lufthansa Cityline'] = 880;
legenddistanceAirline['United Airlines'] = 1518;
legenddistanceAirline['Niki'] = 1686;
legenddistanceAirline['SkyEurope'] = 1844;
legenddistanceAirline['Swiss'] = 18988;
legenddistanceAirline['Air Dolomiti'] = 654;
legenddistanceAirline['Thai'] = 67766;
legenddistanceAirline['Turkish Airlines'] = 30483;
legenddistanceAirline['Air Berlin'] = 1584;
legenddistanceAirline['EuroWings'] = 968;
legenddistanceAirline['Croatia Airlines'] = 330;
legenddistanceAirline['Tarom'] = 1456;
legenddistanceAirline['Air New Zealand'] = 926;
legenddistanceAirline['Qantas'] = 438;
legenddistanceAirline['Virgin Australia'] = 465;
legenddistanceAirline['Jetstar Airways'] = 2301;
legenddistanceAirline['OneWorld'] = 55447;
legenddistanceAirline['Star Alliance'] = 235716;
legenddistanceAirline['SkyTeam'] = 26934;
legenddistanceAirline['No Alliance'] = 65338;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 14.5,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (55447)',
						categories: ['British Airways','Others'],
						data: [13.9,0.5],
						color: colors[0]
					}
				} ,{
					y: 61.5,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (235716)',
						categories: ['Austrian Airlines','Lufthansa','Air Canada','Swiss','Thai','Turkish Airlines','Others'],
						data: [19,7.5,3.1,5,17.7,7.9,1.3],
						color: colors[1]
					}
				} ,{
					y: 7,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (26934)',
						categories: ['Air France','Delta','Others'],
						data: [2.7,2.2,2.1],
						color: colors[2]
					}
				} ,{
					y: 17,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (65338)',
						categories: ['Emirates','TWA','Southwest','Lauda Air (NG)','Others'],
						data: [2.4,3.2,1,6.5,3.9],
						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 "";
	}
}