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

legenddistanceAlliance['OneWorld'] = 5910;
legenddistanceAlliance['Star Alliance'] = 24057;
legenddistanceAlliance['SkyTeam'] = 6934;
legenddistanceAlliance['No Alliance'] = 52657;
legenddistanceAirline['Norwegian Air UK'] = 1970;
legenddistanceAirline['Swiss'] = 6920;
legenddistanceAirline['Lufthansa'] = 14469;
legenddistanceAirline['Germania Express'] = 2432;
legenddistanceAirline['Air Berlin'] = 2138;
legenddistanceAirline['Ryanair'] = 3736;
legenddistanceAirline['AIRPORT-OPERATED'] = 14525;
legenddistanceAirline['Tuifly'] = 3729;
legenddistanceAirline['GermanWings'] = 3558;
legenddistanceAirline['Condor'] = 14910;
legenddistanceAirline['Aer Lingus'] = 668;
legenddistanceAirline['HapagFly'] = 5585;
legenddistanceAirline['Iberia'] = 442;
legenddistanceAirline['Norwegian Air Shuttle'] = 910;
legenddistanceAirline['Wizz Air'] = 634;
legenddistanceAirline['LOT Polish Airlines'] = 1145;
legenddistanceAirline['Austrian Airlines'] = 477;
legenddistanceAirline['SAS'] = 514;
legenddistanceAirline['Spanair'] = 532;
legenddistanceAirline['Delta'] = 6934;
legenddistanceAirline['British Airways'] = 3330;
legenddistanceAirline['OneWorld'] = 5910;
legenddistanceAirline['Star Alliance'] = 24057;
legenddistanceAirline['SkyTeam'] = 6934;
legenddistanceAirline['No Alliance'] = 52657;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 6.6,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (5910)',
						categories: ['Air Berlin','British Airways','Others'],
						data: [2.4,3.7,0.5],
						color: colors[0]
					}
				} ,{
					y: 26.9,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (24057)',
						categories: ['Swiss','Lufthansa','LOT Polish Airlines','Others'],
						data: [7.7,16.2,1.3,1.7],
						color: colors[1]
					}
				} ,{
					y: 7.7,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (6934)',
						categories: ['Delta'],
						data: [7.7],
						color: colors[2]
					}
				} ,{
					y: 58.8,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (52657)',
						categories: ['Norwegian Air UK','Germania Express','Ryanair','AIRPORT-OPERATED','Tuifly','GermanWings','Condor','HapagFly','Norwegian Air Shuttle','Others'],
						data: [2.2,2.7,4.2,16.2,4.2,4,16.6,6.2,1,1.4],
						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 "";
	}
}