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

legenddistanceAlliance['OneWorld'] = 33713;
legenddistanceAlliance['Star Alliance'] = 37455;
legenddistanceAlliance['SkyTeam'] = 16352;
legenddistanceAlliance['No Alliance'] = 24033;
legenddistanceAirline['British Airways'] = 16903;
legenddistanceAirline['KLM Royal Dutch Airlines'] = 1294;
legenddistanceAirline['SAS'] = 5216;
legenddistanceAirline['United Airlines'] = 10743;
legenddistanceAirline['	Seaborne Airlines'] = 214;
legenddistanceAirline['American Airlines'] = 2580;
legenddistanceAirline['Mexicana'] = 2373;
legenddistanceAirline['EgyptAir'] = 784;
legenddistanceAirline['Turkish Airlines'] = 3167;
legenddistanceAirline['Air France'] = 4211;
legenddistanceAirline['Kuwait Airways'] = 3267;
legenddistanceAirline['China Airlines'] = 5819;
legenddistanceAirline['Starlux Airlines'] = 1546;
legenddistanceAirline['Malaysia Airlines'] = 3167;
legenddistanceAirline['Regional Air'] = 707;
legenddistanceAirline['Air India'] = 707;
legenddistanceAirline['Singapore Airlines'] = 12117;
legenddistanceAirline['JetBlue'] = 7266;
legenddistanceAirline['Delta'] = 1803;
legenddistanceAirline['Viva Macau'] = 5143;
legenddistanceAirline['Japan Airlines'] = 965;
legenddistanceAirline['Asiana Airlines'] = 3060;
legenddistanceAirline['Korean Air'] = 200;
legenddistanceAirline['Ethiopian Airlines'] = 781;
legenddistanceAirline['Qatar Airways'] = 4993;
legenddistanceAirline['Thai'] = 880;
legenddistanceAirline['Finnair'] = 2732;
legenddistanceAirline['Saudia'] = 1582;
legenddistanceAirline['Royal Air Maroc'] = 5890;
legenddistanceAirline['AeroMexico'] = 1443;
legenddistanceAirline['OneWorld'] = 33713;
legenddistanceAirline['Star Alliance'] = 37455;
legenddistanceAirline['SkyTeam'] = 16352;
legenddistanceAirline['No Alliance'] = 24033;


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

        var colors = Highcharts.getOptions().colors,


            categories = ['OneWorld','Star Alliance','SkyTeam','No Alliance'],
            name = 'Carriers',
            data = [{
					y: 30.2,
					color: colors[0],
					drilldown: {
						name: 'OneWorld (33713)',
						categories: ['British Airways','American Airlines','Mexicana','Malaysia Airlines','Qatar Airways','Finnair','Others'],
						data: [15.2,2.3,2.1,2.8,4.5,2.4,0.9],
						color: colors[0]
					}
				} ,{
					y: 33.6,
					color: colors[1],
					drilldown: {
						name: 'Star Alliance (37455)',
						categories: ['SAS','United Airlines','Turkish Airlines','Singapore Airlines','Asiana Airlines','Others'],
						data: [4.7,9.6,2.8,10.9,2.7,2.8],
						color: colors[1]
					}
				} ,{
					y: 14.7,
					color: colors[2],
					drilldown: {
						name: 'SkyTeam (16352)',
						categories: ['KLM Royal Dutch Airlines','Air France','China Airlines','Delta','Saudia','AeroMexico','Others'],
						data: [1.2,3.8,5.2,1.6,1.4,1.3,0.2],
						color: colors[2]
					}
				} ,{
					y: 21.5,
					color: colors[3],
					drilldown: {
						name: 'No Alliance (24033)',
						categories: ['Kuwait Airways','Starlux Airlines','JetBlue','Viva Macau','Royal Air Maroc','Others'],
						data: [2.9,1.4,6.5,4.6,5.3,0.8],
						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 "";
	}
}