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

legenddistanceAlliance['OneWorld'] = 161940;
legenddistanceAlliance['Star Alliance'] = 784796;
legenddistanceAlliance['SkyTeam'] = 137393;
legenddistanceAlliance['No Alliance'] = 153166;
legenddistanceAirline['United Airlines'] = 50324;
legenddistanceAirline['Air Canada'] = 36902;
legenddistanceAirline['Lufthansa'] = 87175;
legenddistanceAirline['Swiss'] = 339354;
legenddistanceAirline['Singapore Airlines'] = 34438;
legenddistanceAirline['Air New Zealand'] = 103503;
legenddistanceAirline['Emirates'] = 5091;
legenddistanceAirline['Qantas'] = 4219;
legenddistanceAirline['Pacific Blue'] = 1481;
legenddistanceAirline['Fiji Airways'] = 4020;
legenddistanceAirline['GermanWings'] = 486;
legenddistanceAirline['US Airways'] = 4818;
legenddistanceAirline['SAS'] = 4180;
legenddistanceAirline['Air Berlin'] = 32369;
legenddistanceAirline['Finnair'] = 3076;
legenddistanceAirline['Alaska Airlines'] = 1716;
legenddistanceAirline['Air France'] = 12428;
legenddistanceAirline['Southwest'] = 18490;
legenddistanceAirline['Continental'] = 23816;
legenddistanceAirline['Malaysia Airlines'] = 47450;
legenddistanceAirline['Helvetic Airways'] = 1002;
legenddistanceAirline['Korean Air'] = 22842;
legenddistanceAirline['Freebird Airlines'] = 3870;
legenddistanceAirline['Czech Airlines'] = 634;
legenddistanceAirline['South African Airways'] = 21424;
legenddistanceAirline['Delta'] = 89684;
legenddistanceAirline['EasyJet'] = 5948;
legenddistanceAirline['Northwest'] = 4046;
legenddistanceAirline['Ryanair'] = 1330;
legenddistanceAirline['American Airlines'] = 14007;
legenddistanceAirline['Edelweiss'] = 27365;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 7759;
legenddistanceAirline['Condor'] = 13659;
legenddistanceAirline['Zoom'] = 16271;
legenddistanceAirline['Varig'] = 10770;
legenddistanceAirline['Thai'] = 63496;
legenddistanceAirline['EasyJet'] = 1471;
legenddistanceAirline['Air Chathams'] = 394;
legenddistanceAirline['Jetstar Airways'] = 4934;
legenddistanceAirline['Austrian Airlines'] = 11602;
legenddistanceAirline['Maldivian Air Taxi'] = 552;
legenddistanceAirline['Hawaiian Airlines'] = 2868;
legenddistanceAirline['Etihad'] = 15247;
legenddistanceAirline['LOT Polish Airlines'] = 641;
legenddistanceAirline['Virgin Australia'] = 1353;
legenddistanceAirline['British Airways'] = 8127;
legenddistanceAirline['Aegean Airlines'] = 1842;
legenddistanceAirline['Qatar Airways'] = 46158;
legenddistanceAirline['Norwegian Air Shuttle'] = 5620;
legenddistanceAirline['Norwegian Air International'] = 4559;
legenddistanceAirline['AIRPORT-OPERATED'] = 365;
legenddistanceAirline['Sun Country Airlines'] = 1026;
legenddistanceAirline['All Nippon Airways'] = 734;
legenddistanceAirline['Asiana Airlines'] = 576;
legenddistanceAirline['Eurowings Discover'] = 4668;
legenddistanceAirline['Air Rarotonga'] = 326;
legenddistanceAirline['Ethiopian Airlines'] = 4789;
legenddistanceAirline['OneWorld'] = 161940;
legenddistanceAirline['Star Alliance'] = 784796;
legenddistanceAirline['SkyTeam'] = 137393;
legenddistanceAirline['No Alliance'] = 153166;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 13.1,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (161940)',
						categories: ['Air Berlin','Malaysia Airlines','American Airlines','Qatar Airways','Others'],
						data: [2.6,3.8,1.1,3.7,1.7],
						color: colors[0]
					}
				} ,{
					y: 63.4,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (784796)',
						categories: ['United Airlines','Air Canada','Lufthansa','Swiss','Singapore Airlines','Air New Zealand','Continental','South African Airways','Thai','Others'],
						data: [4.1,3,7,27.4,2.8,8.4,1.9,1.7,5.1,1.9],
						color: colors[1]
					}
				} ,{
					y: 11.1,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (137393)',
						categories: ['Air France','Korean Air','Delta','Others'],
						data: [1,1.8,7.2,1],
						color: colors[2]
					}
				} ,{
					y: 12.4,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (153166)',
						categories: ['Southwest','Edelweiss','Condor','Zoom','Etihad','Others'],
						data: [1.5,2.2,1.1,1.3,1.2,4.9],
						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 "";
	}
}