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

legenddistanceAlliance['OneWorld'] = 1122052;
legenddistanceAlliance['Star Alliance'] = 131728;
legenddistanceAlliance['SkyTeam'] = 108486;
legenddistanceAlliance['No Alliance'] = 112787;
legenddistanceAirline['British Airways'] = 938029;
legenddistanceAirline['EuroWings'] = 870;
legenddistanceAirline['Air France'] = 25265;
legenddistanceAirline['Etihad'] = 36622;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 13801;
legenddistanceAirline['Virgin Atlantic'] = 58081;
legenddistanceAirline['Oman Air'] = 3466;
legenddistanceAirline['Delta'] = 11339;
legenddistanceAirline['Ryanair'] = 5868;
legenddistanceAirline['Air Canada'] = 17970;
legenddistanceAirline['Alaska Airlines'] = 1356;
legenddistanceAirline['American Airlines'] = 103902;
legenddistanceAirline['Emirates'] = 13146;
legenddistanceAirline['Aer Lingus'] = 558;
legenddistanceAirline['Iberia'] = 8017;
legenddistanceAirline['Cathay Pacific'] = 33120;
legenddistanceAirline['Air New Zealand'] = 12525;
legenddistanceAirline['Qantas'] = 27344;
legenddistanceAirline['BMI British Midland'] = 2057;
legenddistanceAirline['Gulf Air'] = 32283;
legenddistanceAirline['US Airways'] = 1061;
legenddistanceAirline['Thai'] = 16684;
legenddistanceAirline['United Airlines'] = 20849;
legenddistanceAirline['MaxJet'] = 5230;
legenddistanceAirline['EasyJet'] = 3286;
legenddistanceAirline['Malev'] = 2329;
legenddistanceAirline['Lufthansa'] = 12967;
legenddistanceAirline['Austrian Airlines'] = 1564;
legenddistanceAirline['Singapore Airlines'] = 47112;
legenddistanceAirline['Royal Brunei'] = 3416;
legenddistanceAirline['Air Arabia'] = 310;
legenddistanceAirline['Easyjet'] = 4908;
legenddistanceAirline['FlyBe'] = 1778;
legenddistanceAirline['Loganair'] = 546;
legenddistanceAirline['WestJet'] = 500;
legenddistanceAirline['Qatar Airways'] = 6894;
legenddistanceAirline['OneWorld'] = 1122052;
legenddistanceAirline['Star Alliance'] = 131728;
legenddistanceAirline['SkyTeam'] = 108486;
legenddistanceAirline['No Alliance'] = 112787;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 76.1,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (1122052)',
						categories: ['British Airways','American Airlines','Cathay Pacific','Qantas','Others'],
						data: [63.6,7,2.2,1.9,1.4],
						color: colors[0]
					}
				} ,{
					y: 8.9,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (131728)',
						categories: ['Air Canada','Thai','United Airlines','Singapore Airlines','Others'],
						data: [1.2,1.1,1.4,3.2,1.9],
						color: colors[1]
					}
				} ,{
					y: 7.4,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (108486)',
						categories: ['Air France','Virgin Atlantic','Others'],
						data: [1.7,3.9,1.7],
						color: colors[2]
					}
				} ,{
					y: 7.6,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (112787)',
						categories: ['Etihad','Gulf Air','Others'],
						data: [2.5,2.2,2.8],
						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 "";
	}
}