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

legenddistanceAlliance['OneWorld'] = 347061;
legenddistanceAlliance['Star Alliance'] = 146124;
legenddistanceAlliance['SkyTeam'] = 145553;
legenddistanceAlliance['No Alliance'] = 136024;
legenddistanceAirline['Air Austral'] = 25472;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 26061;
legenddistanceAirline['Emirates'] = 58539;
legenddistanceAirline['Korean Air'] = 17676;
legenddistanceAirline['Alaska Airlines'] = 3243;
legenddistanceAirline['American Airlines'] = 33011;
legenddistanceAirline['British Airways'] = 90338;
legenddistanceAirline['Air France'] = 73352;
legenddistanceAirline['Air Mauritius'] = 17455;
legenddistanceAirline['Singapore Airlines'] = 372;
legenddistanceAirline['Malaysia Airlines'] = 201;
legenddistanceAirline['IcelandAir'] = 5012;
legenddistanceAirline['Continental'] = 1872;
legenddistanceAirline['Bangkok Airways'] = 412;
legenddistanceAirline['Japan Airlines'] = 7999;
legenddistanceAirline['Delta'] = 4580;
legenddistanceAirline['Lufthansa'] = 10468;
legenddistanceAirline['United Airlines'] = 4482;
legenddistanceAirline['Air Canada'] = 15984;
legenddistanceAirline['Aegean Airlines'] = 9758;
legenddistanceAirline['South African Airways'] = 11303;
legenddistanceAirline['EgyptAir'] = 37847;
legenddistanceAirline['Qatar Airways'] = 124762;
legenddistanceAirline['Aer Lingus'] = 865;
legenddistanceAirline['Turkish Airlines'] = 15105;
legenddistanceAirline['Etihad'] = 12459;
legenddistanceAirline['Royal Jordanian'] = 1172;
legenddistanceAirline['Swiss'] = 10488;
legenddistanceAirline['Brussels Airlines'] = 1032;
legenddistanceAirline['Alitalia'] = 5279;
legenddistanceAirline['Austrian Airlines'] = 852;
legenddistanceAirline['Finnair'] = 28031;
legenddistanceAirline['Cathay Pacific'] = 51136;
legenddistanceAirline['LATAM Chile'] = 2684;
legenddistanceAirline['Air New Zealand'] = 926;
legenddistanceAirline['Ethiopian Airlines'] = 25635;
legenddistanceAirline['Oman Air'] = 5291;
legenddistanceAirline['Vueling'] = 654;
legenddistanceAirline['Middle East Airlines'] = 1330;
legenddistanceAirline['Sri Lankan Airlines'] = 4484;
legenddistanceAirline['Kenya Airways'] = 17275;
legenddistanceAirline['Comair'] = 1576;
legenddistanceAirline['TAAG Angola Airlines'] = 3094;
legenddistanceAirline['FlySafair'] = 1570;
legenddistanceAirline['Norwegian Air Shuttle'] = 3625;
legenddistanceAirline['OneWorld'] = 347061;
legenddistanceAirline['Star Alliance'] = 146124;
legenddistanceAirline['SkyTeam'] = 145553;
legenddistanceAirline['No Alliance'] = 136024;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 44.8,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (347061)',
						categories: ['American Airlines','British Airways','Japan Airlines','Qatar Airways','Finnair','Cathay Pacific','Others'],
						data: [4.3,11.7,1,16.1,3.6,6.6,1.5],
						color: colors[0]
					}
				} ,{
					y: 18.9,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (146124)',
						categories: ['Lufthansa','Air Canada','Aegean Airlines','South African Airways','EgyptAir','Turkish Airlines','Swiss','Ethiopian Airlines','Others'],
						data: [1.4,2.1,1.3,1.5,4.9,1.9,1.4,3.3,1.1],
						color: colors[1]
					}
				} ,{
					y: 18.8,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (145553)',
						categories: ['KLM Royal Dutch Airlines','Korean Air','Air France','Kenya Airways','Others'],
						data: [3.4,2.3,9.5,2.2,1.5],
						color: colors[2]
					}
				} ,{
					y: 17.6,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (136024)',
						categories: ['Air Austral','Emirates','Air Mauritius','Etihad','Others'],
						data: [3.3,7.6,2.3,1.6,2.9],
						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 "";
	}
}