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dashboard-ui/components/humanedate.js

@@ -0,0 +1,64 @@
+define([], function () {
+
+    /*
+     * Javascript Humane Dates
+     * Copyright (c) 2008 Dean Landolt (deanlandolt.com)
+     * Re-write by Zach Leatherman (zachleat.com)
+     *
+     * Adopted from the John Resig's pretty.js
+     * at http://ejohn.org/blog/javascript-pretty-date
+     * and henrah's proposed modification
+     * at http://ejohn.org/blog/javascript-pretty-date/#comment-297458
+     *
+     * Licensed under the MIT license.
+     */
+
+    function humane_date(date_str) {
+        var time_formats = [[90, 'a minute'], // 60*1.5
+        [3600, 'minutes', 60], // 60*60, 60
+        [5400, 'an hour'], // 60*60*1.5
+        [86400, 'hours', 3600], // 60*60*24, 60*60
+        [129600, 'a day'], // 60*60*24*1.5
+        [604800, 'days', 86400], // 60*60*24*7, 60*60*24
+        [907200, 'a week'], // 60*60*24*7*1.5
+        [2628000, 'weeks', 604800], // 60*60*24*(365/12), 60*60*24*7
+        [3942000, 'a month'], // 60*60*24*(365/12)*1.5
+        [31536000, 'months', 2628000], // 60*60*24*365, 60*60*24*(365/12)
+        [47304000, 'a year'], // 60*60*24*365*1.5
+        [3153600000, 'years', 31536000] // 60*60*24*365*100, 60*60*24*365
+        ];
+
+        var dt = new Date;
+        var date = parseISO8601Date(date_str, { toLocal: true });
+
+        var seconds = ((dt - date) / 1000);
+        var token = ' ago';
+        var i = 0;
+        var format;
+
+        if (seconds < 0) {
+            seconds = Math.abs(seconds);
+            token = '';
+        }
+
+        while (format = time_formats[i++]) {
+            if (seconds < format[0]) {
+                if (format.length == 2) {
+                    return format[1] + token;
+                } else {
+                    return Math.round(seconds / format[2]) + ' ' + format[1] + token;
+                }
+            }
+        }
+
+        // overflow for centuries
+        if (seconds > 4730400000)
+            return Math.round(seconds / 4730400000) + ' centuries' + token;
+
+        return date_str;
+    }
+
+    window.humane_date = humane_date;
+
+    return humane_date;
+});