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

legenddistanceAlliance['OneWorld'] = 1686229;
legenddistanceAlliance['Star Alliance'] = 17279;
legenddistanceAlliance['SkyTeam'] = 4347;
legenddistanceAlliance['No Alliance'] = 34343;
legenddistanceAirline['British Airways'] = 1242551;
legenddistanceAirline['Qatar Airways'] = 78451;
legenddistanceAirline['Finnair'] = 112286;
legenddistanceAirline['Cathay Pacific'] = 34744;
legenddistanceAirline['Iberia'] = 28136;
legenddistanceAirline['Vueling'] = 556;
legenddistanceAirline['Lufthansa'] = 10776;
legenddistanceAirline['US Airways'] = 5746;
legenddistanceAirline['Norwegian Air Shuttle'] = 2500;
legenddistanceAirline['JetBlue'] = 372;
legenddistanceAirline['Delta'] = 1092;
legenddistanceAirline['Jet2'] = 7402;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 3255;
legenddistanceAirline['Brussels Airlines'] = 999;
legenddistanceAirline['Bmibaby'] = 1482;
legenddistanceAirline['Ryanair'] = 3853;
legenddistanceAirline['FlyBe'] = 3519;
legenddistanceAirline['Thomson Airways'] = 1155;
legenddistanceAirline['EasyJet'] = 1009;
legenddistanceAirline['American Airlines'] = 121592;
legenddistanceAirline['Cathay Dragon'] = 8182;
legenddistanceAirline['Malaysia Airlines'] = 6806;
legenddistanceAirline['Silkair'] = 1378;
legenddistanceAirline['SAS'] = 2888;
legenddistanceAirline['Japan Airlines'] = 24674;
legenddistanceAirline['Eastern Airways'] = 906;
legenddistanceAirline['Cambodia Angkor Air'] = 292;
legenddistanceAirline['Aer Lingus'] = 2279;
legenddistanceAirline['GermanWings'] = 408;
legenddistanceAirline['EasyJet'] = 3307;
legenddistanceAirline['LATAM Chile'] = 11692;
legenddistanceAirline['Air China'] = 681;
legenddistanceAirline['Bangkok Airways'] = 523;
legenddistanceAirline['Alaska Airlines'] = 8054;
legenddistanceAirline['Loganair (LC)'] = 187;
legenddistanceAirline['Swiss'] = 978;
legenddistanceAirline['IcelandAir'] = 1177;
legenddistanceAirline['Loganair'] = 1381;
legenddistanceAirline['Aurigny'] = 318;
legenddistanceAirline['Royal Jordanian'] = 3315;
legenddistanceAirline['Austrian Airlines'] = 957;
legenddistanceAirline['Iberia Express'] = 339;
legenddistanceAirline['OneWorld'] = 1686229;
legenddistanceAirline['Star Alliance'] = 17279;
legenddistanceAirline['SkyTeam'] = 4347;
legenddistanceAirline['No Alliance'] = 34343;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 96.8,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (1686229)',
						categories: ['British Airways','Qatar Airways','Finnair','Cathay Pacific','Iberia','American Airlines','Japan Airlines','Others'],
						data: [71.3,4.5,6.4,2,1.6,7,1.4,2.6],
						color: colors[0]
					}
				} ,{
					y: 1,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (17279)',
						categories: ['Others'],
						data: [1.1],
						color: colors[1]
					}
				} ,{
					y: 0.2,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (4347)',
						categories: ['Others'],
						data: [0.3],
						color: colors[2]
					}
				} ,{
					y: 2,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (34343)',
						categories: ['Others'],
						data: [1.9],
						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 "";
	}
}