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

legenddistanceAlliance['OneWorld'] = 399447;
legenddistanceAlliance['Star Alliance'] = 140976;
legenddistanceAlliance['SkyTeam'] = 27932;
legenddistanceAlliance['No Alliance'] = 76542;
legenddistanceAirline['Lufthansa'] = 21796;
legenddistanceAirline['Air New Zealand'] = 12913;
legenddistanceAirline['Swiss'] = 20481;
legenddistanceAirline['Austrian Airlines'] = 41321;
legenddistanceAirline['British Airways'] = 303741;
legenddistanceAirline['American Airlines'] = 20059;
legenddistanceAirline['Iberia'] = 9203;
legenddistanceAirline['Air Canada'] = 444;
legenddistanceAirline['EasyJet'] = 20890;
legenddistanceAirline['Ryanair'] = 25983;
legenddistanceAirline['SAS'] = 1447;
legenddistanceAirline['Brussels Airlines'] = 217;
legenddistanceAirline['Air Berlin'] = 339;
legenddistanceAirline['Singapore Airlines'] = 34417;
legenddistanceAirline['Qatar Airways'] = 20941;
legenddistanceAirline['Qantas'] = 16238;
legenddistanceAirline['JetStarAsia'] = 2076;
legenddistanceAirline['Malaysia Airlines'] = 11291;
legenddistanceAirline['Finnair'] = 17635;
legenddistanceAirline['Scoot'] = 2756;
legenddistanceAirline['Jet Airways'] = 5154;
legenddistanceAirline['Virgin Atlantic'] = 6884;
legenddistanceAirline['Bangkok Airways'] = 578;
legenddistanceAirline['Thai'] = 1359;
legenddistanceAirline['Cebu Pacific'] = 778;
legenddistanceAirline['Vietnam Airlines'] = 1990;
legenddistanceAirline['Aegean Airlines'] = 135;
legenddistanceAirline['Air France'] = 12281;
legenddistanceAirline['Niki'] = 5005;
legenddistanceAirline['BMI British Midland'] = 2376;
legenddistanceAirline['Air Europa'] = 4637;
legenddistanceAirline['Wizz Air'] = 2618;
legenddistanceAirline['LOT Polish Airlines'] = 1826;
legenddistanceAirline['IndiGo'] = 286;
legenddistanceAirline['Spanair'] = 2244;
legenddistanceAirline['Lauda Air (NG)'] = 10418;
legenddistanceAirline['Delta'] = 2140;
legenddistanceAirline['OneWorld'] = 399447;
legenddistanceAirline['Star Alliance'] = 140976;
legenddistanceAirline['SkyTeam'] = 27932;
legenddistanceAirline['No Alliance'] = 76542;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 61.9,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (399447)',
						categories: ['British Airways','American Airlines','Iberia','Qatar Airways','Qantas','Malaysia Airlines','Finnair','Others'],
						data: [47.1,3.1,1.4,3.2,2.5,1.8,2.7,0.1],
						color: colors[0]
					}
				} ,{
					y: 21.9,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (140976)',
						categories: ['Lufthansa','Air New Zealand','Swiss','Austrian Airlines','Singapore Airlines','Others'],
						data: [3.4,2,3.2,6.4,5.3,1.5],
						color: colors[1]
					}
				} ,{
					y: 4.3,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (27932)',
						categories: ['Virgin Atlantic','Air France','Others'],
						data: [1.1,1.9,1.3],
						color: colors[2]
					}
				} ,{
					y: 11.9,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (76542)',
						categories: ['EasyJet','Ryanair','Lauda Air (NG)','Others'],
						data: [3.2,4,1.6,2.9],
						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 "";
	}
}