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

legenddistanceAlliance['OneWorld'] = 113880;
legenddistanceAlliance['Star Alliance'] = 19980;
legenddistanceAlliance['SkyTeam'] = 18898;
legenddistanceAlliance['No Alliance'] = 167316;
legenddistanceAirline['American Airlines'] = 5768;
legenddistanceAirline['Easyjet'] = 70391;
legenddistanceAirline['British Airways'] = 81922;
legenddistanceAirline['Monarch'] = 34557;
legenddistanceAirline['Ryanair'] = 14730;
legenddistanceAirline['BMI British Midland'] = 2326;
legenddistanceAirline['South African Airways'] = 816;
legenddistanceAirline['AIRPORT-OPERATED'] = 224;
legenddistanceAirline['Virgin Atlantic'] = 18898;
legenddistanceAirline['SATA Air Acores'] = 1549;
legenddistanceAirline['Air New Zealand'] = 10886;
legenddistanceAirline['Malaysia Airlines'] = 13582;
legenddistanceAirline['US Airways'] = 12608;
legenddistanceAirline['Etihad'] = 6516;
legenddistanceAirline['Bangkok Airways'] = 802;
legenddistanceAirline['Thai'] = 5952;
legenddistanceAirline['LIAT'] = 491;
legenddistanceAirline['Royal Air Maroc'] = 2961;
legenddistanceAirline['Wizz Air'] = 6209;
legenddistanceAirline['Bmibaby'] = 500;
legenddistanceAirline['Norwegian Air Shuttle'] = 6934;
legenddistanceAirline['Britannia Airways'] = 8028;
legenddistanceAirline['Norwegian Air International'] = 1529;
legenddistanceAirline['Azores Airlines'] = 1550;
legenddistanceAirline['Thomson Airways'] = 1844;
legenddistanceAirline['EasyJet'] = 967;
legenddistanceAirline['Easyjet'] = 818;
legenddistanceAirline['JetBlue'] = 6716;
legenddistanceAirline['OneWorld'] = 113880;
legenddistanceAirline['Star Alliance'] = 19980;
legenddistanceAirline['SkyTeam'] = 18898;
legenddistanceAirline['No Alliance'] = 167316;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 35.6,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (113880)',
						categories: ['American Airlines','British Airways','Malaysia Airlines','US Airways'],
						data: [1.8,25.6,4.2,3.9],
						color: colors[0]
					}
				} ,{
					y: 6.2,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (19980)',
						categories: ['Air New Zealand','Thai','Others'],
						data: [3.4,1.9,1],
						color: colors[1]
					}
				} ,{
					y: 5.9,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (18898)',
						categories: ['Virgin Atlantic'],
						data: [5.9],
						color: colors[2]
					}
				} ,{
					y: 52.3,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (167316)',
						categories: ['Easyjet','Monarch','Ryanair','Etihad','Wizz Air','Norwegian Air Shuttle','Britannia Airways','JetBlue','Others'],
						data: [22,10.8,4.6,2,1.9,2.2,2.5,2.1,4.4],
						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 "";
	}
}