RecursionStuff

recursion.js

var colours = [
    { colour: 'white', value: '#ffffff' },
    { colour: 'black', value: '#182124' },
    { colour: 'yellow', value: '#efbd46' },
    { colour: 'blue', value: [
        { colour: 'navy', value:'#223157' },
        { colour: 'dark', value:'#016ca6' },
        { colour: 'flat', value:'#52a1cc' },
        { colour: 'slate', value:'#8fb7cc' },
        { colour: 'sky', value:'#50c1e9' },
        { colour: 'cool', value:'#99dbff' }
    ]},
    { colour: 'green', value: [
        { colour: 'grass', value:'#006f4d' },
        { colour: 'apple', value:'#6eb249' },
        { colour: 'lime', value:'#aac53e' },
        { colour: 'vibrant', value:'#c1e62e' },
        { colour: 'mint', value:'#7accb3' },
        { colour: 'aqua', value:'#17b2be' },
        { colour: 'teal', value:'#008f9a' }
    ]},
    { colour: 'red', value: [
        { colour:'flat', value:'#f5644c' },
        { colour:'vibrant', value:'#f54533' }
    ]},
    { colour: 'grey', value: [
        { colour:'90', value:'#333a3c'},
        { colour:'80', value:'#464d50'},
        { colour:'70', value:'#5d6365'},
        { colour:'60', value:'#747a7c'},
        { colour:'50', value:'#8b9091'},
        { colour:'40', value:'#a3a6a7'},
        { colour:'30', value:'#b9bcbd'},
        { colour:'20', value:'#ececec'},
        { colour:'10', value:'#f5f5f5'}
    ]}
];


function buildColourArray(colours) {
    var colour_list = [];
    function processColour(parent_colour, colour, next) {
        async.each(colour.value, function (item, callback) {
            if (_.isArray(colour.value)) {
                return processColour(colour.colour, item, callback);
            }
            return callback();
        }, function (err) {
            var colour_name = colour.colour;
            if (parent_colour) {
                colour_name = parent_colour + '-' + colour.colour
            }
            if (!_.isArray(colour.value)) {
                colour_list.push({
                    name: colour_name,
                    value: colour.value
                });
            }
            return next();
        });
    }

    async.each(colours, function (item, callback) {
        processColour('', item, callback);
    }, function (err) {
        if (err) {
            console.error(err);
        }
        console.log(colour_list);
        return colour_list
    });
}