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

legenddistanceAlliance['OneWorld'] = 310215;
legenddistanceAlliance['Star Alliance'] = 79046;
legenddistanceAlliance['SkyTeam'] = 13917;
legenddistanceAlliance['No Alliance'] = 105150;
legenddistanceAirline['Air Canada'] = 28319;
legenddistanceAirline['British Airways'] = 88138;
legenddistanceAirline['Norwegian Air Shuttle'] = 3540;
legenddistanceAirline['Finnair'] = 12639;
legenddistanceAirline['Iberia'] = 4189;
legenddistanceAirline['Easyjet'] = 11887;
legenddistanceAirline['Wizz Air'] = 7019;
legenddistanceAirline['American Airlines'] = 10485;
legenddistanceAirline['Southwest'] = 1497;
legenddistanceAirline['Ryanair'] = 1730;
legenddistanceAirline['Singapore Airlines'] = 36453;
legenddistanceAirline['Qantas'] = 134225;
legenddistanceAirline['Lufthansa'] = 2347;
legenddistanceAirline['LOT Polish Airlines'] = 1475;
legenddistanceAirline['GermanWings'] = 2229;
legenddistanceAirline['JetBlue'] = 369;
legenddistanceAirline['Aer Lingus'] = 1417;
legenddistanceAirline['Qatar Airways'] = 20834;
legenddistanceAirline['Swiss'] = 910;
legenddistanceAirline['Monarch'] = 807;
legenddistanceAirline['Alaska Airlines'] = 2606;
legenddistanceAirline['Smartwings'] = 1276;
legenddistanceAirline['Cathay Pacific'] = 35296;
legenddistanceAirline['Jetstar Airways'] = 49030;
legenddistanceAirline['Delta'] = 13917;
legenddistanceAirline['WestJet'] = 6263;
legenddistanceAirline['Virgin Australia'] = 14208;
legenddistanceAirline['Cathay Dragon'] = 1803;
legenddistanceAirline['United Airlines'] = 9542;
legenddistanceAirline['Emirates'] = 3817;
legenddistanceAirline['Harbour Air'] = 61;
legenddistanceAirline['OneWorld'] = 310215;
legenddistanceAirline['Star Alliance'] = 79046;
legenddistanceAirline['SkyTeam'] = 13917;
legenddistanceAirline['No Alliance'] = 105150;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 61,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (310215)',
						categories: ['British Airways','Finnair','American Airlines','Qantas','Qatar Airways','Cathay Pacific','Others'],
						data: [17.3,2.5,2.1,26.4,4.1,6.9,1.7],
						color: colors[0]
					}
				} ,{
					y: 15.6,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (79046)',
						categories: ['Air Canada','Singapore Airlines','United Airlines','Others'],
						data: [5.6,7.2,1.9,1],
						color: colors[1]
					}
				} ,{
					y: 2.7,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (13917)',
						categories: ['Delta'],
						data: [2.7],
						color: colors[2]
					}
				} ,{
					y: 20.7,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (105150)',
						categories: ['Easyjet','Wizz Air','Jetstar Airways','WestJet','Virgin Australia','Others'],
						data: [2.3,1.4,9.6,1.2,2.8,3.4],
						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 "";
	}
}