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

legenddistanceAlliance['OneWorld'] = 43561;
legenddistanceAlliance['Star Alliance'] = 145119;
legenddistanceAlliance['SkyTeam'] = 169739;
legenddistanceAlliance['No Alliance'] = 106511;
legenddistanceAirline['Thai'] = 41382;
legenddistanceAirline['Thai Vietjet'] = 666;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 94559;
legenddistanceAirline['Japan Airlines'] = 6807;
legenddistanceAirline['Cebu Pacific'] = 385;
legenddistanceAirline['EVA'] = 68604;
legenddistanceAirline['Philippine Airlines'] = 385;
legenddistanceAirline['Thai Air Asia'] = 3343;
legenddistanceAirline['EasyJet'] = 7374;
legenddistanceAirline['Emirates'] = 25032;
legenddistanceAirline['Ryanair'] = 4320;
legenddistanceAirline['Lufthansa'] = 11272;
legenddistanceAirline['British Airways'] = 14168;
legenddistanceAirline['Nok Air'] = 3953;
legenddistanceAirline['China Eastern'] = 12153;
legenddistanceAirline['Shanghai Airlines'] = 1800;
legenddistanceAirline['Thai Lion Air'] = 2219;
legenddistanceAirline['Finnair'] = 7749;
legenddistanceAirline['FlyBe'] = 642;
legenddistanceAirline['VLM'] = 590;
legenddistanceAirline['Aeroflot'] = 10162;
legenddistanceAirline['EuroWings'] = 224;
legenddistanceAirline['Mahan Air'] = 11704;
legenddistanceAirline['Swiss'] = 1263;
legenddistanceAirline['Transavia'] = 20494;
legenddistanceAirline['Iberia Express'] = 907;
legenddistanceAirline['Air Europa'] = 1814;
legenddistanceAirline['China Airlines'] = 25631;
legenddistanceAirline['Bangkok Airways'] = 3128;
legenddistanceAirline['Qatar Airways'] = 13077;
legenddistanceAirline['Siem Reap Airways'] = 146;
legenddistanceAirline['Air Asia'] = 1655;
legenddistanceAirline['Thai Smile'] = 1184;
legenddistanceAirline['Myanmar Airways International'] = 379;
legenddistanceAirline['Myanmar National Airlines'] = 268;
legenddistanceAirline['Golden Myanmar Airlines'] = 123;
legenddistanceAirline['Mann Yadanarpon Airlines'] = 76;
legenddistanceAirline['Cathay Pacific'] = 1760;
legenddistanceAirline['Kenya Airways'] = 13127;
legenddistanceAirline['EZ Air'] = 74;
legenddistanceAirline['TAP Portugal'] = 1319;
legenddistanceAirline['Austrian Airlines'] = 2384;
legenddistanceAirline['Non-existent'] = 359;
legenddistanceAirline['Tarom'] = 1146;
legenddistanceAirline['Brussels Airlines'] = 559;
legenddistanceAirline['Singapore Airlines'] = 7413;
legenddistanceAirline['Vueling'] = 13009;
legenddistanceAirline['Asiana Airlines'] = 2279;
legenddistanceAirline['Vietnam Airlines'] = 6649;
legenddistanceAirline['SAS'] = 1894;
legenddistanceAirline['Air France'] = 2698;
legenddistanceAirline['Air India'] = 5786;
legenddistanceAirline['Air Japan'] = 2889;
legenddistanceAirline['Starflyer'] = 268;
legenddistanceAirline['Norwegian Air International'] = 715;
legenddistanceAirline['Lufthansa City'] = 964;
legenddistanceAirline['OneWorld'] = 43561;
legenddistanceAirline['Star Alliance'] = 145119;
legenddistanceAirline['SkyTeam'] = 169739;
legenddistanceAirline['No Alliance'] = 106511;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 9.4,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (43561)',
						categories: ['Japan Airlines','British Airways','Finnair','Qatar Airways','Others'],
						data: [1.5,3,1.7,2.8,0.4],
						color: colors[0]
					}
				} ,{
					y: 31.2,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (145119)',
						categories: ['Thai','EVA','Lufthansa','Singapore Airlines','Air India','Others'],
						data: [8.9,14.8,2.4,1.6,1.2,2.3],
						color: colors[1]
					}
				} ,{
					y: 36.5,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (169739)',
						categories: ['KLM Royal Dutch Airlines','China Eastern','Aeroflot','China Airlines','Kenya Airways','Vietnam Airlines','Others'],
						data: [20.3,2.6,2.2,5.5,2.8,1.4,1.6],
						color: colors[2]
					}
				} ,{
					y: 22.9,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (106511)',
						categories: ['EasyJet','Emirates','Mahan Air','Transavia','Vueling','Others'],
						data: [1.6,5.4,2.5,4.4,2.8,6.3],
						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 "";
	}
}