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

legenddistanceAlliance['OneWorld'] = 729323;
legenddistanceAlliance['Star Alliance'] = 743726;
legenddistanceAlliance['SkyTeam'] = 86448;
legenddistanceAlliance['No Alliance'] = 27556;
legenddistanceAirline['Cathay Pacific'] = 591987;
legenddistanceAirline['Air Canada'] = 161083;
legenddistanceAirline['Singapore Airlines'] = 366597;
legenddistanceAirline['Air New Zealand'] = 75505;
legenddistanceAirline['Qantas'] = 45379;
legenddistanceAirline['British Airways'] = 66559;
legenddistanceAirline['BMI British Midland'] = 460;
legenddistanceAirline['Asiana Airlines'] = 7211;
legenddistanceAirline['All Nippon Airways'] = 35029;
legenddistanceAirline['Thai'] = 56052;
legenddistanceAirline['SAS'] = 5740;
legenddistanceAirline['Air France'] = 17094;
legenddistanceAirline['Malaysia Airlines'] = 368;
legenddistanceAirline['Swiss'] = 24833;
legenddistanceAirline['Southwest'] = 1784;
legenddistanceAirline['Japan Airlines'] = 13961;
legenddistanceAirline['American Airlines'] = 5792;
legenddistanceAirline['Lufthansa'] = 8316;
legenddistanceAirline['Cathay Dragon'] = 2854;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 3722;
legenddistanceAirline['Korean Air'] = 65346;
legenddistanceAirline['Scoot'] = 4782;
legenddistanceAirline['Etihad'] = 3817;
legenddistanceAirline['LATAM Chile'] = 1342;
legenddistanceAirline['Pacific Blue'] = 3278;
legenddistanceAirline['Alaska Airlines'] = 1081;
legenddistanceAirline['Bangkok Airways'] = 2544;
legenddistanceAirline['Jetstar Airways'] = 594;
legenddistanceAirline['Alitalia'] = 286;
legenddistanceAirline['Hong Kong Airlines'] = 1049;
legenddistanceAirline['United Airlines'] = 2257;
legenddistanceAirline['Austrian Airlines'] = 643;
legenddistanceAirline['Cebu Pacific'] = 350;
legenddistanceAirline['Garuda Indonesia'] = 4026;
legenddistanceAirline['IcelandAir'] = 3928;
legenddistanceAirline['Air Asia'] = 1404;
legenddistanceAirline['OneWorld'] = 729323;
legenddistanceAirline['Star Alliance'] = 743726;
legenddistanceAirline['SkyTeam'] = 86448;
legenddistanceAirline['No Alliance'] = 27556;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 46,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (729323)',
						categories: ['Cathay Pacific','Qantas','British Airways','Others'],
						data: [37.3,2.9,4.2,1.7],
						color: colors[0]
					}
				} ,{
					y: 46.9,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (743726)',
						categories: ['Air Canada','Singapore Airlines','Air New Zealand','All Nippon Airways','Thai','Swiss','Others'],
						data: [10.1,23.1,4.8,2.2,3.5,1.6,1.5],
						color: colors[1]
					}
				} ,{
					y: 5.4,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (86448)',
						categories: ['Air France','Korean Air','Others'],
						data: [1.1,4.1,0.2],
						color: colors[2]
					}
				} ,{
					y: 1.7,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (27556)',
						categories: ['Others'],
						data: [1.7],
						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 "";
	}
}