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

legenddistanceAlliance['OneWorld'] = 836836;
legenddistanceAlliance['Star Alliance'] = 124972;
legenddistanceAlliance['SkyTeam'] = 75265;
legenddistanceAlliance['No Alliance'] = 22400;
legenddistanceAirline['Continental'] = 11077;
legenddistanceAirline['British Airways'] = 547007;
legenddistanceAirline['United Airlines'] = 173;
legenddistanceAirline['American Airlines'] = 117007;
legenddistanceAirline['Singapore Airlines'] = 28184;
legenddistanceAirline['Finnair'] = 2543;
legenddistanceAirline['Binter Canarias'] = 256;
legenddistanceAirline['Qantas'] = 1342;
legenddistanceAirline['Virgin Atlantic'] = 22937;
legenddistanceAirline['Malaysia Airlines'] = 50517;
legenddistanceAirline['Iberia'] = 19627;
legenddistanceAirline['Alitalia'] = 292;
legenddistanceAirline['VLM'] = 852;
legenddistanceAirline['Air France'] = 29115;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 9657;
legenddistanceAirline['Qatar Airways'] = 27487;
legenddistanceAirline['Delta'] = 6103;
legenddistanceAirline['Aerolineas Argentinas'] = 2900;
legenddistanceAirline['LATAM Chile'] = 5800;
legenddistanceAirline['Olympic Airlines'] = 1508;
legenddistanceAirline['Emirates'] = 2034;
legenddistanceAirline['Czech Airlines'] = 2910;
legenddistanceAirline['Japan Airlines'] = 552;
legenddistanceAirline['Cathay Pacific'] = 37388;
legenddistanceAirline['EasyJet'] = 5364;
legenddistanceAirline['Air Europa'] = 1351;
legenddistanceAirline['South African Airways'] = 2121;
legenddistanceAirline['Southwest'] = 459;
legenddistanceAirline['Lufthansa'] = 5798;
legenddistanceAirline['Euroline'] = 1939;
legenddistanceAirline['Hainan Airlines'] = 668;
legenddistanceAirline['Asiana Airlines'] = 1847;
legenddistanceAirline['Jet Airways'] = 1578;
legenddistanceAirline['LOT Polish Airlines'] = 1830;
legenddistanceAirline['Royal Jordanian'] = 27566;
legenddistanceAirline['Blue Islands'] = 374;
legenddistanceAirline['EasyJet'] = 3892;
legenddistanceAirline['IcelandAir'] = 1177;
legenddistanceAirline['FlyBe'] = 1690;
legenddistanceAirline['Air Canada'] = 324;
legenddistanceAirline['Thai'] = 73233;
legenddistanceAirline['Austrian Airlines'] = 385;
legenddistanceAirline['Silkair'] = 609;
legenddistanceAirline['OneWorld'] = 836836;
legenddistanceAirline['Star Alliance'] = 124972;
legenddistanceAirline['SkyTeam'] = 75265;
legenddistanceAirline['No Alliance'] = 22400;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 79,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (836836)',
						categories: ['British Airways','American Airlines','Malaysia Airlines','Iberia','Qatar Airways','Cathay Pacific','Royal Jordanian','Others'],
						data: [51.6,11,4.8,1.9,2.6,3.5,2.6,0.9],
						color: colors[0]
					}
				} ,{
					y: 11.8,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (124972)',
						categories: ['Continental','Singapore Airlines','Thai','Others'],
						data: [1,2.7,6.9,1.1],
						color: colors[1]
					}
				} ,{
					y: 7.1,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (75265)',
						categories: ['Virgin Atlantic','Air France','Others'],
						data: [2.2,2.7,2.2],
						color: colors[2]
					}
				} ,{
					y: 2.1,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (22400)',
						categories: ['Others'],
						data: [2.1],
						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 "";
	}
}