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

legenddistanceAlliance['OneWorld'] = 641559;
legenddistanceAlliance['Star Alliance'] = 275984;
legenddistanceAlliance['SkyTeam'] = 15732;
legenddistanceAlliance['No Alliance'] = 90325;
legenddistanceAirline['British Airways'] = 583023;
legenddistanceAirline['United Airlines'] = 45608;
legenddistanceAirline['Air Canada'] = 9121;
legenddistanceAirline['EasyJet'] = 6059;
legenddistanceAirline['Aer Lingus'] = 1356;
legenddistanceAirline['Lufthansa'] = 35622;
legenddistanceAirline['Pacific Blue'] = 860;
legenddistanceAirline['Qantas'] = 21285;
legenddistanceAirline['BMI British Midland'] = 5194;
legenddistanceAirline['Iberia'] = 1665;
legenddistanceAirline['Singapore Airlines'] = 97471;
legenddistanceAirline['Virgin Atlantic'] = 15732;
legenddistanceAirline['Thai'] = 27367;
legenddistanceAirline['Gulf Air'] = 23240;
legenddistanceAirline['Air New Zealand'] = 4409;
legenddistanceAirline['Eurostar'] = 422;
legenddistanceAirline['Virgin America'] = 1705;
legenddistanceAirline['Emirates'] = 1644;
legenddistanceAirline['All Nippon Airways'] = 1326;
legenddistanceAirline['American Airlines'] = 11160;
legenddistanceAirline['Swiss'] = 5261;
legenddistanceAirline['FlyBe'] = 318;
legenddistanceAirline['US Airways'] = 671;
legenddistanceAirline['Eos Airlines'] = 13872;
legenddistanceAirline['Cathay Pacific'] = 15006;
legenddistanceAirline['Titan Airways'] = 942;
legenddistanceAirline['Turkish Airlines'] = 3092;
legenddistanceAirline['South African Airways'] = 12443;
legenddistanceAirline['JetBlue'] = 231;
legenddistanceAirline['Jetstar Airways'] = 297;
legenddistanceAirline['Continental'] = 18914;
legenddistanceAirline['Alaska Airlines'] = 865;
legenddistanceAirline['Easyjet'] = 29068;
legenddistanceAirline['Ryanair'] = 7268;
legenddistanceAirline['Cathay Dragon'] = 902;
legenddistanceAirline['Silkair'] = 1324;
legenddistanceAirline['Qatar Airways'] = 6982;
legenddistanceAirline['Bangkok Airways'] = 1272;
legenddistanceAirline['Air India'] = 10156;
legenddistanceAirline['IndiGo'] = 447;
legenddistanceAirline['OneWorld'] = 641559;
legenddistanceAirline['Star Alliance'] = 275984;
legenddistanceAirline['SkyTeam'] = 15732;
legenddistanceAirline['No Alliance'] = 90325;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 62.7,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (641559)',
						categories: ['British Airways','Qantas','American Airlines','Cathay Pacific','Others'],
						data: [57,2.1,1.1,1.5,1.2],
						color: colors[0]
					}
				} ,{
					y: 27,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (275984)',
						categories: ['United Airlines','Lufthansa','Singapore Airlines','Thai','South African Airways','Continental','Air India','Others'],
						data: [4.5,3.5,9.5,2.7,1.2,1.8,1,2.7],
						color: colors[1]
					}
				} ,{
					y: 1.5,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (15732)',
						categories: ['Virgin Atlantic'],
						data: [1.5],
						color: colors[2]
					}
				} ,{
					y: 8.8,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (90325)',
						categories: ['Gulf Air','Eos Airlines','Easyjet','Others'],
						data: [2.3,1.4,2.8,2.2],
						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 "";
	}
}