// TODO: log_ajax_error

/*
Namespace: Mindscape.util
  A namespace that provides utility helpers for the Mindscape JavaScript application architecture framework.
*/
Mindscape.util = Mindscape.util || {

    /*
    Function: log
    The function for logging messages. Delegates to console.log, console.warn, or console.error.

    Parameters:
    level - The integer for the level of logging severity.
    message - The object to be logged.
    */
    log: function (level, message) {
        if (Mindscape.config.debug) {
            if (typeof window.console !== 'undefined') {
                if (typeof level === 'number') {
                    console[(level === 1) ? 'log' : (level === 2) ? 'warn' : 'error'](message);
                } else {
                    console.log(level);
                }
            }
        } else {
            // send to server
        }
    },

    /*
    Function: isArray
    The function for checking if a value is an array. Delegates to jQuery.isArray.

    Parameters:
    value - The value to be checked.

    See:
    <isObject>
    */
    isArray: function (value) {
        return $m.jQuery.isArray(value);
    },

    /*
    Function: isObject
    The function for checking if a value is an object. Delegates to jQuery.isPlainObject.

    Parameters:
    value - The value to be checked.

    See:
    <isArray>
    */
    isObject: function (value) {
        return $m.jQuery.isPlainObject(value);
    },

    /*
    Function: ajax
    The function for performing AJAX requests. Delegates to jQuery.ajax.

    Parameters:
    options - The options to be used when performing the AJAX request.

    See:
    <toJSON>
    */
    ajax: function (options) {
        return $m.jQuery.ajax(options);
    },

    /*
    Function: toJSON
    The function for serializing an object to JSON. Delegates to jQuery.toJSON.

    Parameters:
    data - The object to be serialized.

    See:
    <ajax>
    */
    toJSON: function (data) {
        return $m.jQuery.toJSON(data);
    },


    /*
    Function: sha1
    The function for hashing a value using SHA-1. Delegates to jQuery.sha1.

    Parameters:
    value - The value being hashed.
    */
    sha1: function (value) {
        return $m.jQuery.sha1(value);
    },

    /*
    Function: each
    The function for looping through items in an object or array.  Delegates to jQuery.each

    Parameters
    data - The object or array to be itterated through
    method - Code to be extecuted on each itteration of data
    */
    each: function (data, method) {
        return $m.jQuery.each(data, method);
    }

};

/*
Function: String.prototype.toDate
  The function for converting a microsoft formatted datetime string to a javascript Date object.
*/
String.prototype.toDate = function() {
    var microsoftDate = /^\/Date\((d|-|.*)\)[\/|\\]$/;
    return new Date(parseInt(microsoftDate.exec(this)[1], 0));
};

var dateFormat = function () {
    var token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
	timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
	timezoneClip = /[^-+\dA-Z]/g,
	pad = function (val, len) {
		val = String(val);
		len = len || 2;
		while (val.length < len) val = "0" + val;
		return val;
	};

    // Regexes and supporting functions are cached through closure
    return function (date, mask, utc) {
        var dF = dateFormat;

        // You can't provide utc if you skip other args (use the "UTC:" mask prefix)
        if (arguments.length == 1 && Object.prototype.toString.call(date) == "[object String]" && !/\d/.test(date)) {
            mask = date;
            date = undefined;
        }

        // Passing date through Date applies Date.parse, if necessary
        date = date ? new Date(date) : new Date;
        if (isNaN(date)) throw SyntaxError("invalid date");

        mask = String(dF.masks[mask] || mask || dF.masks["default"]);

        // Allow setting the utc argument via the mask
        if (mask.slice(0, 4) == "UTC:") {
            mask = mask.slice(4);
            utc = true;
        }

        var _ = utc ? "getUTC" : "get",
		d = date[_ + "Date"](),
		D = date[_ + "Day"](),
		m = date[_ + "Month"](),
		y = date[_ + "FullYear"](),
		H = date[_ + "Hours"](),
		M = date[_ + "Minutes"](),
		s = date[_ + "Seconds"](),
		L = date[_ + "Milliseconds"](),
		o = utc ? 0 : date.getTimezoneOffset(),
		flags = {
			d: d,
			dd: pad(d),
			ddd: dF.i18n.dayNames[D],
			dddd: dF.i18n.dayNames[D + 7],
			m: m + 1,
			mm: pad(m + 1),
			mmm: dF.i18n.monthNames[m],
			mmmm: dF.i18n.monthNames[m + 12],
			yy: String(y).slice(2),
			yyyy: y,
			h: H % 12 || 12,
			hh: pad(H % 12 || 12),
			H: H,
			HH: pad(H),
			M: M,
			MM: pad(M),
			s: s,
			ss: pad(s),
			l: pad(L, 3),
			L: pad(L > 99 ? Math.round(L / 10) : L),
			t: H < 12 ? "a" : "p",
			tt: H < 12 ? "am" : "pm",
			T: H < 12 ? "A" : "P",
			TT: H < 12 ? "AM" : "PM",
			Z: utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
			o: (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
			S: ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
		};

        return mask.replace(token, function ($0) {
            return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
        });
    };
} ();

// Some common format strings
dateFormat.masks = {
    "default": "ddd mmm dd yyyy HH:MM:ss",
    shortDate: "m/d/yy",
    mediumDate: "mmm d, yyyy",
    longDate: "mmmm d, yyyy",
    fullDate: "dddd, mmmm d, yyyy",
    shortTime: "h:MM TT",
    mediumTime: "h:MM:ss TT",
    longTime: "h:MM:ss TT Z",
    isoDate: "yyyy-mm-dd",
    isoTime: "HH:MM:ss",
    isoDateTime: "yyyy-mm-dd'T'HH:MM:ss",
    isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
};

// Internationalization strings
dateFormat.i18n = {
    dayNames: [
	"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
	"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
],
    monthNames: [
	"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec",
	"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"
]
};

/*
Function: Date.prototype.format
  The function for formatting a Date object.
*/
Date.prototype.format = function (mask, utc) {
    return dateFormat(this, mask, utc);
};

String.prototype.startsWith = function(value) {
  return this.match('^' + value) == value;
};

String.prototype.endsWith = function(value) {
  return this.match(value + '$') == value;
};