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

legenddistanceAlliance['OneWorld'] = 11640;
legenddistanceAlliance['Star Alliance'] = 702549;
legenddistanceAlliance['SkyTeam'] = 18710;
legenddistanceAlliance['No Alliance'] = 124726;
legenddistanceAirline['TAP Portugal'] = 319707;
legenddistanceAirline['SATA Air Acores'] = 22281;
legenddistanceAirline['Azores Airlines'] = 56945;
legenddistanceAirline['Norwegian Air UK'] = 891;
legenddistanceAirline['SAS'] = 20114;
legenddistanceAirline['Air Canada'] = 145935;
legenddistanceAirline['BMI British Midland'] = 1452;
legenddistanceAirline['LATAM Brasil'] = 248;
legenddistanceAirline['Swiss'] = 101006;
legenddistanceAirline['Lufthansa'] = 11806;
legenddistanceAirline['Augsburg Airways'] = 1513;
legenddistanceAirline['Lufthansa Cityline'] = 2934;
legenddistanceAirline['US Airways'] = 9028;
legenddistanceAirline['Canadian Pacific Airlines'] = 1137;
legenddistanceAirline['Northwest'] = 348;
legenddistanceAirline['Continental'] = 1899;
legenddistanceAirline['Belair Airlines'] = 1264;
legenddistanceAirline['Air Berlin'] = 1342;
legenddistanceAirline['Brussels Airlines'] = 17652;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 10428;
legenddistanceAirline['EuroWings'] = 841;
legenddistanceAirline['British Airways'] = 1022;
legenddistanceAirline['Turkish Airlines'] = 3273;
legenddistanceAirline['Delta'] = 5337;
legenddistanceAirline['Helvetic Airways'] = 2339;
legenddistanceAirline['Air France'] = 2597;
legenddistanceAirline['LOT Polish Airlines'] = 6925;
legenddistanceAirline['United Airlines'] = 22288;
legenddistanceAirline['Portugalia'] = 23687;
legenddistanceAirline['Copa Airlines'] = 3601;
legenddistanceAirline['Insel Air'] = 634;
legenddistanceAirline['Etihad Regional'] = 666;
legenddistanceAirline['Aegean Airlines'] = 31558;
legenddistanceAirline['SkyWork'] = 6084;
legenddistanceAirline['Austrian Airlines'] = 10646;
legenddistanceAirline['Olympic Airlines'] = 1953;
legenddistanceAirline['Porter Airlines'] = 433;
legenddistanceAirline['Ethiopian Airlines'] = 240;
legenddistanceAirline['Bulgaria Air'] = 383;
legenddistanceAirline['Edelweiss'] = 5188;
legenddistanceAirline['OneWorld'] = 11640;
legenddistanceAirline['Star Alliance'] = 702549;
legenddistanceAirline['SkyTeam'] = 18710;
legenddistanceAirline['No Alliance'] = 124726;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 1.4,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (11640)',
						categories: ['US Airways','Others'],
						data: [1.1,0.3],
						color: colors[0]
					}
				} ,{
					y: 81.9,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (702549)',
						categories: ['TAP Portugal','SAS','Air Canada','Swiss','Lufthansa','Brussels Airlines','United Airlines','Aegean Airlines','Austrian Airlines','Others'],
						data: [37.3,2.3,17,11.8,1.4,2.1,2.6,3.7,1.2,2.5],
						color: colors[1]
					}
				} ,{
					y: 2.2,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (18710)',
						categories: ['KLM Royal Dutch Airlines','Others'],
						data: [1.2,0.9],
						color: colors[2]
					}
				} ,{
					y: 14.5,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (124726)',
						categories: ['SATA Air Acores','Azores Airlines','Portugalia','Others'],
						data: [2.6,6.6,2.8,2.5],
						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 "";
	}
}