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

legenddistanceAlliance['OneWorld'] = 147964;
legenddistanceAlliance['Star Alliance'] = 86843;
legenddistanceAlliance['SkyTeam'] = 104185;
legenddistanceAlliance['No Alliance'] = 88784;
legenddistanceAirline['Qatar Airways'] = 41962;
legenddistanceAirline['Philippine Airlines'] = 2498;
legenddistanceAirline['SAS'] = 4239;
legenddistanceAirline['Thai'] = 14359;
legenddistanceAirline['TACA International'] = 1032;
legenddistanceAirline['United Airlines'] = 11316;
legenddistanceAirline['Alaska Airlines'] = 1756;
legenddistanceAirline['Lufthansa'] = 21411;
legenddistanceAirline['British Airways'] = 46065;
legenddistanceAirline['Croatia Airlines'] = 1955;
legenddistanceAirline['Easyjet'] = 4252;
legenddistanceAirline['Air Canada'] = 15014;
legenddistanceAirline['Blue1'] = 1395;
legenddistanceAirline['LOT Polish Airlines'] = 915;
legenddistanceAirline['Virgin America'] = 337;
legenddistanceAirline['American Airlines'] = 1542;
legenddistanceAirline['Delta'] = 8629;
legenddistanceAirline['Etihad'] = 6858;
legenddistanceAirline['Swiss'] = 1432;
legenddistanceAirline['IcelandAir'] = 2354;
legenddistanceAirline['Air Iceland'] = 140;
legenddistanceAirline['Air France'] = 3502;
legenddistanceAirline['Bmibaby'] = 315;
legenddistanceAirline['Cityjet'] = 338;
legenddistanceAirline['Thomas Cook (TCX)'] = 4216;
legenddistanceAirline['TAP Portugal'] = 2756;
legenddistanceAirline['Air Europa'] = 13626;
legenddistanceAirline['Air Asia X'] = 15173;
legenddistanceAirline['Air Asia'] = 19137;
legenddistanceAirline['BMI British Midland'] = 802;
legenddistanceAirline['Alrosa'] = 748;
legenddistanceAirline['Gazpromavia'] = 762;
legenddistanceAirline['Vladivostok Air'] = 871;
legenddistanceAirline['Aeroflot'] = 7775;
legenddistanceAirline['Alitalia'] = 3054;
legenddistanceAirline['Ukraine International'] = 6622;
legenddistanceAirline['Pegasus Airlines'] = 7732;
legenddistanceAirline['Turkish Airlines'] = 5931;
legenddistanceAirline['Air Koryo'] = 487;
legenddistanceAirline['Cathay Pacific'] = 20588;
legenddistanceAirline['Cathay Dragon'] = 2785;
legenddistanceAirline['Malaysia Airlines'] = 28551;
legenddistanceAirline['Sriwijaya Air'] = 545;
legenddistanceAirline['Saudia'] = 30929;
legenddistanceAirline['Braathens Regional Airlines'] = 313;
legenddistanceAirline['Ryanair'] = 593;
legenddistanceAirline['China Southern'] = 15102;
legenddistanceAirline['Biman Bangladesh'] = 65;
legenddistanceAirline['Garuda Indonesia'] = 1396;
legenddistanceAirline['Scoot'] = 184;
legenddistanceAirline['Vietnam Airlines'] = 14051;
legenddistanceAirline['Singapore Airlines'] = 6713;
legenddistanceAirline['Firefly'] = 172;
legenddistanceAirline['Malindo Air'] = 800;
legenddistanceAirline['China Airlines'] = 833;
legenddistanceAirline['Korean Air'] = 646;
legenddistanceAirline['Shanghai Airlines'] = 2351;
legenddistanceAirline['China Eastern'] = 780;
legenddistanceAirline['Cebgo'] = 254;
legenddistanceAirline['Sri Lankan Airlines'] = 1533;
legenddistanceAirline['Royal Brunei'] = 776;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 2907;
legenddistanceAirline['Thai Air Asia'] = 770;
legenddistanceAirline['Azerbaijan Airlines'] = 2582;
legenddistanceAirline['Cebu Pacific'] = 659;
legenddistanceAirline['Royal Jordanian'] = 2445;
legenddistanceAirline['Loganair'] = 804;
legenddistanceAirline['Eastern Airways'] = 824;
legenddistanceAirline['FlyBe'] = 1802;
legenddistanceAirline['EasyJet'] = 468;
legenddistanceAirline['LATAM Chile'] = 737;
legenddistanceAirline['Gol'] = 510;
legenddistanceAirline['OneWorld'] = 147964;
legenddistanceAirline['Star Alliance'] = 86843;
legenddistanceAirline['SkyTeam'] = 104185;
legenddistanceAirline['No Alliance'] = 88784;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 34.6,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (147964)',
						categories: ['Qatar Airways','British Airways','Cathay Pacific','Malaysia Airlines','Others'],
						data: [9.8,10.8,4.8,6.7,2.7],
						color: colors[0]
					}
				} ,{
					y: 20.3,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (86843)',
						categories: ['SAS','Thai','United Airlines','Lufthansa','Air Canada','Turkish Airlines','Singapore Airlines','Others'],
						data: [1,3.4,2.6,5,3.5,1.4,1.6,1.8],
						color: colors[1]
					}
				} ,{
					y: 24.4,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (104185)',
						categories: ['Delta','Air Europa','Aeroflot','Saudia','China Southern','Vietnam Airlines','Others'],
						data: [2,3.2,1.8,7.2,3.5,3.3,3.3],
						color: colors[2]
					}
				} ,{
					y: 20.8,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (88784)',
						categories: ['Easyjet','Etihad','Thomas Cook (TCX)','Air Asia X','Air Asia','Ukraine International','Pegasus Airlines','Others'],
						data: [1,1.6,1,3.5,4.5,1.5,1.8,5.8],
						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 "";
	}
}