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

legenddistanceAlliance['OneWorld'] = 526964;
legenddistanceAlliance['Star Alliance'] = 184772;
legenddistanceAlliance['SkyTeam'] = 41481;
legenddistanceAlliance['No Alliance'] = 12168;
legenddistanceAirline['Royal Jordanian'] = 69238;
legenddistanceAirline['British Airways'] = 310234;
legenddistanceAirline['Cathay Pacific'] = 68986;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 10414;
legenddistanceAirline['Hainan Airlines'] = 2602;
legenddistanceAirline['China Eastern'] = 2038;
legenddistanceAirline['Singapore Airlines'] = 89396;
legenddistanceAirline['Air Asia'] = 201;
legenddistanceAirline['United Airlines'] = 12588;
legenddistanceAirline['SAS'] = 5756;
legenddistanceAirline['Swiss'] = 4552;
legenddistanceAirline['Lufthansa'] = 16339;
legenddistanceAirline['Air China'] = 681;
legenddistanceAirline['Shanghai Airlines'] = 1742;
legenddistanceAirline['All Nippon Airways'] = 17081;
legenddistanceAirline['Air Canada'] = 4629;
legenddistanceAirline['American Airlines'] = 3442;
legenddistanceAirline['MaxJet'] = 3468;
legenddistanceAirline['Air France'] = 2972;
legenddistanceAirline['Finnair'] = 15720;
legenddistanceAirline['Cathay Dragon'] = 6988;
legenddistanceAirline['EasyJet'] = 2440;
legenddistanceAirline['Gulf Air'] = 302;
legenddistanceAirline['Qantas'] = 25865;
legenddistanceAirline['Japan Airlines'] = 11057;
legenddistanceAirline['Thai'] = 17276;
legenddistanceAirline['Malaysia Airlines'] = 11914;
legenddistanceAirline['Alitalia'] = 12822;
legenddistanceAirline['Iberia'] = 774;
legenddistanceAirline['Sri Lankan Airlines'] = 2190;
legenddistanceAirline['Air One'] = 951;
legenddistanceAirline['VLM'] = 380;
legenddistanceAirline['Asiana Airlines'] = 5520;
legenddistanceAirline['Continental'] = 6912;
legenddistanceAirline['Aegean Airlines'] = 3374;
legenddistanceAirline['Turkish Airlines'] = 668;
legenddistanceAirline['Virgin Atlantic'] = 11493;
legenddistanceAirline['FlyBe'] = 318;
legenddistanceAirline['EasyJet'] = 1506;
legenddistanceAirline['Air Berlin'] = 556;
legenddistanceAirline['OneWorld'] = 526964;
legenddistanceAirline['Star Alliance'] = 184772;
legenddistanceAirline['SkyTeam'] = 41481;
legenddistanceAirline['No Alliance'] = 12168;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 68.8,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (526964)',
						categories: ['Royal Jordanian','British Airways','Cathay Pacific','Finnair','Qantas','Japan Airlines','Malaysia Airlines','Others'],
						data: [9,40.5,9,2.1,3.4,1.4,1.6,1.8],
						color: colors[0]
					}
				} ,{
					y: 24.1,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (184772)',
						categories: ['Singapore Airlines','United Airlines','Lufthansa','All Nippon Airways','Thai','Others'],
						data: [11.7,1.6,2.1,2.2,2.3,4.2],
						color: colors[1]
					}
				} ,{
					y: 5.4,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (41481)',
						categories: ['KLM Royal Dutch Airlines','Alitalia','Virgin Atlantic','Others'],
						data: [1.4,1.7,1.5,0.9],
						color: colors[2]
					}
				} ,{
					y: 1.6,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (12168)',
						categories: ['Others'],
						data: [1.4],
						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 "";
	}
}