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

legenddistanceAlliance['OneWorld'] = 255981;
legenddistanceAlliance['Star Alliance'] = 361519;
legenddistanceAlliance['SkyTeam'] = 71160;
legenddistanceAlliance['No Alliance'] = 145951;
legenddistanceAirline['Qantas'] = 115631;
legenddistanceAirline['Air New Zealand'] = 287287;
legenddistanceAirline['Singapore Airlines'] = 16579;
legenddistanceAirline['All Nippon Airways'] = 816;
legenddistanceAirline['LATAM Chile'] = 8052;
legenddistanceAirline['Southwest'] = 3097;
legenddistanceAirline['British Airways'] = 19387;
legenddistanceAirline['EasyJet'] = 2347;
legenddistanceAirline['American Airlines'] = 62609;
legenddistanceAirline['Emirates'] = 23236;
legenddistanceAirline['JetStarAsia'] = 1594;
legenddistanceAirline['Jetstar Airways'] = 40114;
legenddistanceAirline['Cebu Pacific'] = 709;
legenddistanceAirline['Swiss'] = 11391;
legenddistanceAirline['Malaysia Airlines'] = 38161;
legenddistanceAirline['Virgin Australia'] = 5147;
legenddistanceAirline['Virgin Atlantic'] = 21156;
legenddistanceAirline['Air France'] = 6312;
legenddistanceAirline['United Airlines'] = 24201;
legenddistanceAirline['Ryanair'] = 26695;
legenddistanceAirline['China Southern'] = 17213;
legenddistanceAirline['Fiji Airways'] = 6855;
legenddistanceAirline['China Airlines'] = 1342;
legenddistanceAirline['Volaris'] = 4098;
legenddistanceAirline['Etihad'] = 10915;
legenddistanceAirline['SAS'] = 421;
legenddistanceAirline['Thai'] = 15690;
legenddistanceAirline['Aer Lingus'] = 279;
legenddistanceAirline['TAP Portugal'] = 618;
legenddistanceAirline['Norwegian Air Shuttle'] = 6934;
legenddistanceAirline['Vueling'] = 645;
legenddistanceAirline['Wizz Air'] = 6138;
legenddistanceAirline['Japan Airlines'] = 1840;
legenddistanceAirline['WestJet'] = 7148;
legenddistanceAirline['AeroMexico'] = 2013;
legenddistanceAirline['China Eastern'] = 23124;
legenddistanceAirline['Turkish Airlines'] = 3416;
legenddistanceAirline['Aegean Airlines'] = 1100;
legenddistanceAirline['Qatar Airways'] = 10301;
legenddistanceAirline['OneWorld'] = 255981;
legenddistanceAirline['Star Alliance'] = 361519;
legenddistanceAirline['SkyTeam'] = 71160;
legenddistanceAirline['No Alliance'] = 145951;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 30.7,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (255981)',
						categories: ['Qantas','LATAM Chile','British Airways','American Airlines','Malaysia Airlines','Qatar Airways','Others'],
						data: [13.9,1,2.3,7.5,4.6,1.2,0.2],
						color: colors[0]
					}
				} ,{
					y: 43.3,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (361519)',
						categories: ['Air New Zealand','Singapore Airlines','Swiss','United Airlines','Thai','Others'],
						data: [34.4,2,1.4,2.9,1.9,0.8],
						color: colors[1]
					}
				} ,{
					y: 8.5,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (71160)',
						categories: ['Virgin Atlantic','China Southern','China Eastern','Others'],
						data: [2.5,2.1,2.8,1.2],
						color: colors[2]
					}
				} ,{
					y: 17.5,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (145951)',
						categories: ['Emirates','Jetstar Airways','Ryanair','Etihad','Others'],
						data: [2.8,4.8,3.2,1.3,5.4],
						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 "";
	}
}