generate_key.js

define(['jquery', 'app'], function ($, app) {

    return app.factory('Acronym', [function () {

        var factory = {

            desiredKeyLength: 2,

            maxKeyLength: 5,

            ignoredWords: ["THE", "A", "AN", "AS", "AND", "OF", "OR"],

            characterMap: {
                199: "C",
                231: "c",
                252: "u",
                251: "u",
                250: "u",
                249: "u",
                233: "e",
                234: "e",
                235: "e",
                232: "e",
                226: "a",
                228: "a",
                224: "a",
                229: "a",
                225: "a",
                239: "i",
                238: "i",
                236: "i",
                237: "i",
                196: "A",
                197: "A",
                201: "E",
                230: "ae",
                198: "Ae",
                244: "o",
                246: "o",
                242: "o",
                243: "o",
                220: "U",
                255: "Y",
                214: "O",
                241: "n",
                209: "N"
            },
            
            getTotalLength: function(words) {
                return words.join("").length
            },
        
            removeIgnoredWords: function(word) {
                return $.grep(word, function (b) {
                    return $.inArray(b, factory.ignoredWords) === -1
                })
            },

            createAcronym: function(b) {
                var a = "";
                AJS.$.each(b, function (c, d) {
                    a += d.charAt(0)
                });
                return a
            },
            
            getFirstSyllable: function(c) {
                var b = false;
                var a;
                for (a = 0; a < c.length; a++) {
                    if (factory.isVowelOrY(c[a])) {
                        b = true
                    } else {
                        if (b) {
                            return c.substring(0, a + 1)
                        }
                    }
                }
                return c
            },
            
            isVowelOrY: function(a) {
                return a && a.length === 1 && a.search("[AEIOUY]") !== -1
            },
            
            generate: function(b) {
                b = $.trim(b);
                if (!b) {
                    return ""
                }

                var a = [];
                for (var d = 0, f = b.length; d < f; d++) {
                    var e = factory.characterMap[b.charCodeAt(d)];
                    a.push(e ? e : b[d]);
                }

                b = a.join("");
                var h = [];
                $.each(b.split(/\s+/), function (j, k) {
                    if (k) {
                        k = k.replace(/[^a-zA-Z]/g, "");
                        k = k.toUpperCase();
                        k.length && h.push(k);
                    }
                });

                if (factory.desiredKeyLength && 
                        factory.getTotalLength(h) > factory.desiredKeyLength) {
                    h = factory.removeIgnoredWords(h);
                }

                var c;
                if (!h.length) {
                    c = ""
                } else {
                    if (h.length === 1) {
                        var g = h[0];
                        if (factory.desiredKeyLength && g.length > factory.desiredKeyLength) {
                            c = factory.getFirstSyllable(g)
                        } else {
                            c = g
                        }
                    } else {
                        c = factory.createAcronym(h)
                    }
                }

                if (factory.maxKeyLength && c.length > factory.maxKeyLength) {
                    c = c.substr(0, factory.maxKeyLength)
                }

                return c
            }

        };

        return factory;
    }]);

});