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

legenddistanceAlliance['OneWorld'] = 89136;
legenddistanceAlliance['Star Alliance'] = 283007;
legenddistanceAlliance['SkyTeam'] = 47541;
legenddistanceAlliance['No Alliance'] = 146596;
legenddistanceAirline['Monarch'] = 14192;
legenddistanceAirline['Singapore Airlines'] = 77799;
legenddistanceAirline['Swiss'] = 50619;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 14135;
legenddistanceAirline['Thomas Cook (MT)'] = 13628;
legenddistanceAirline['South African Airways'] = 32617;
legenddistanceAirline['Air Mauritius'] = 7969;
legenddistanceAirline['Thai'] = 63660;
legenddistanceAirline['Lufthansa'] = 49125;
legenddistanceAirline['Bmibaby'] = 5382;
legenddistanceAirline['BMI British Midland'] = 6928;
legenddistanceAirline['British Airways'] = 81316;
legenddistanceAirline['Qantas'] = 7820;
legenddistanceAirline['Emirates'] = 44887;
legenddistanceAirline['Air Malta'] = 16206;
legenddistanceAirline['Austrian Airlines'] = 2259;
legenddistanceAirline['EasyJet'] = 2326;
legenddistanceAirline['Aer Lingus'] = 400;
legenddistanceAirline['Thomson Airways'] = 5432;
legenddistanceAirline['Virgin Atlantic'] = 21154;
legenddistanceAirline['Ryanair'] = 14124;
legenddistanceAirline['FlyBe'] = 4044;
legenddistanceAirline['Air France'] = 11542;
legenddistanceAirline['Thomas Cook (TCX)'] = 13836;
legenddistanceAirline['Jet2'] = 4170;
legenddistanceAirline['Czech Airlines'] = 710;
legenddistanceAirline['OneWorld'] = 89136;
legenddistanceAirline['Star Alliance'] = 283007;
legenddistanceAirline['SkyTeam'] = 47541;
legenddistanceAirline['No Alliance'] = 146596;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 15.7,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (89136)',
						categories: ['British Airways','Qantas'],
						data: [14.4,1.4],
						color: colors[0]
					}
				} ,{
					y: 50,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (283007)',
						categories: ['Singapore Airlines','Swiss','South African Airways','Thai','Lufthansa','BMI British Midland','Others'],
						data: [13.7,8.9,5.8,11.2,8.7,1.2,0.4],
						color: colors[1]
					}
				} ,{
					y: 8.4,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (47541)',
						categories: ['KLM Royal Dutch Airlines','Virgin Atlantic','Air France','Others'],
						data: [2.5,3.7,2,0.1],
						color: colors[2]
					}
				} ,{
					y: 25.9,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (146596)',
						categories: ['Monarch','Thomas Cook (MT)','Air Mauritius','Bmibaby','Emirates','Air Malta','Thomson Airways','Ryanair','Thomas Cook (TCX)','Others'],
						data: [2.5,2.4,1.4,1,7.9,2.9,1,2.5,2.4,1.9],
						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 "";
	}
}