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

legenddistanceAlliance['OneWorld'] = 280958;
legenddistanceAlliance['Star Alliance'] = 1362;
legenddistanceAlliance['SkyTeam'] = 24774;
legenddistanceAlliance['No Alliance'] = 24448;
legenddistanceAirline['British Airways'] = 158285;
legenddistanceAirline['Pacific Blue'] = 1342;
legenddistanceAirline['Emirates'] = 9052;
legenddistanceAirline['Qantas'] = 4940;
legenddistanceAirline['Scoot'] = 876;
legenddistanceAirline['China Airlines'] = 21188;
legenddistanceAirline['Aer Lingus'] = 558;
legenddistanceAirline['Air France'] = 676;
legenddistanceAirline['BMI British Midland'] = 150;
legenddistanceAirline['Tiger Airways'] = 422;
legenddistanceAirline['Malaysia Airlines'] = 16068;
legenddistanceAirline['Cebu Pacific'] = 3429;
legenddistanceAirline['FlyBe'] = 1332;
legenddistanceAirline['Ryanair'] = 3026;
legenddistanceAirline['Garuda Indonesia'] = 226;
legenddistanceAirline['LATAM Chile'] = 4026;
legenddistanceAirline['American Airlines'] = 12464;
legenddistanceAirline['Delta'] = 2910;
legenddistanceAirline['Qatar Airways'] = 42830;
legenddistanceAirline['Finnair'] = 126;
legenddistanceAirline['Vueling'] = 813;
legenddistanceAirline['Norwegian Air International'] = 1302;
legenddistanceAirline['Cathay Pacific'] = 41081;
legenddistanceAirline['Cebgo'] = 188;
legenddistanceAirline['Thai'] = 802;
legenddistanceAirline['Eastar Jet'] = 1286;
legenddistanceAirline['EasyJet'] = 596;
legenddistanceAirline['Cathay Dragon'] = 1138;
legenddistanceAirline['Swiss'] = 410;
legenddistanceAirline['OneWorld'] = 280958;
legenddistanceAirline['Star Alliance'] = 1362;
legenddistanceAirline['SkyTeam'] = 24774;
legenddistanceAirline['No Alliance'] = 24448;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 84.7,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (280958)',
						categories: ['British Airways','Qantas','Malaysia Airlines','LATAM Chile','American Airlines','Qatar Airways','Cathay Pacific','Others'],
						data: [47.7,1.5,4.8,1.2,3.8,12.9,12.4,0.3],
						color: colors[0]
					}
				} ,{
					y: 0.4,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (1362)',
						categories: ['Others'],
						data: [0.3],
						color: colors[1]
					}
				} ,{
					y: 7.5,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (24774)',
						categories: ['China Airlines','Others'],
						data: [6.4,1.1],
						color: colors[2]
					}
				} ,{
					y: 7.4,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (24448)',
						categories: ['Emirates','Cebu Pacific','Others'],
						data: [2.7,1,3.7],
						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 "";
	}
}