/**
* Copyright (c) 2005 - 2010, James Auldridge
* All rights reserved.
*
* Licensed under the BSD, MIT, and GPL (your choice!) Licenses:
*  http://code.google.com/p/cookies/wiki/License
*
*/
var jaaulde = window.jaaulde || {};
jaaulde.utils = jaaulde.utils || {};
jaaulde.utils.cookies = (function ()
{
    var resolveOptions, assembleOptionsString, parseCookies, constructor, defaultOptions = {
        expiresAt: null,
        path: '/',
        domain: null,
        secure: false
    };
    /**
    * resolveOptions - receive an options object and ensure all options are present and valid, replacing with defaults where necessary
    *
    * @access private
    * @static
    * @parameter Object options - optional options to start with
    * @return Object complete and valid options object
    */
    resolveOptions = function (options)
    {
        var returnValue, expireDate;

        if (typeof options !== 'object' || options === null)
        {
            returnValue = defaultOptions;
        }
        else
        {
            returnValue = {
                expiresAt: defaultOptions.expiresAt,
                path: defaultOptions.path,
                domain: defaultOptions.domain,
                secure: defaultOptions.secure
            };

            if (typeof options.expiresAt === 'object' && options.expiresAt instanceof Date)
            {
                returnValue.expiresAt = options.expiresAt;
            }
            else if (typeof options.hoursToLive === 'number' && options.hoursToLive !== 0)
            {
                expireDate = new Date();
                expireDate.setTime(expireDate.getTime() + (options.hoursToLive * 60 * 60 * 1000));
                returnValue.expiresAt = expireDate;
            }

            if (typeof options.path === 'string' && options.path !== '')
            {
                returnValue.path = options.path;
            }

            if (typeof options.domain === 'string' && options.domain !== '')
            {
                returnValue.domain = options.domain;
            }

            if (options.secure === true)
            {
                returnValue.secure = options.secure;
            }
        }

        return returnValue;
    };
    /**
    * assembleOptionsString - analyze options and assemble appropriate string for setting a cookie with those options
    *
    * @access private
    * @static
    * @parameter options OBJECT - optional options to start with
    * @return STRING - complete and valid cookie setting options
    */
    assembleOptionsString = function (options)
    {
        options = resolveOptions(options);

        return (
			(typeof options.expiresAt === 'object' && options.expiresAt instanceof Date ? '; expires=' + options.expiresAt.toGMTString() : '') +
			'; path=' + options.path +
			(typeof options.domain === 'string' ? '; domain=' + options.domain : '') +
			(options.secure === true ? '; secure' : '')
		);
    };
    /**
    * parseCookies - retrieve document.cookie string and break it into a hash with values decoded and unserialized
    *
    * @access private
    * @static
    * @return OBJECT - hash of cookies from document.cookie
    */
    parseCookies = function ()
    {
        var cookies = {}, i, pair, name, value, separated = document.cookie.split(';'), unparsedValue;
        for (i = 0; i < separated.length; i = i + 1)
        {
            pair = separated[i].split('=');
            name = pair[0].replace(/^\s*/, '').replace(/\s*$/, '');

            try
            {
                value = decodeURIComponent(pair[1]);
            }
            catch (e1)
            {
                value = pair[1];
            }

            if (typeof JSON === 'object' && JSON !== null && typeof JSON.parse === 'function')
            {
                try
                {
                    unparsedValue = value;
                    value = JSON.parse(value);
                }
                catch (e2)
                {
                    value = unparsedValue;
                }
            }

            cookies[name] = value;
        }
        return cookies;
    };

    constructor = function () { };

    /**
    * get - get one, several, or all cookies
    *
    * @access public
    * @paramater Mixed cookieName - String:name of single cookie; Array:list of multiple cookie names; Void (no param):if you want all cookies
    * @return Mixed - Value of cookie as set; Null:if only one cookie is requested and is not found; Object:hash of multiple or all cookies (if multiple or all requested);
    */
    constructor.prototype.get = function (cookieName)
    {
        var returnValue, item, cookies = parseCookies();

        if (typeof cookieName === 'string')
        {
            returnValue = (typeof cookies[cookieName] !== 'undefined') ? cookies[cookieName] : null;
        }
        else if (typeof cookieName === 'object' && cookieName !== null)
        {
            returnValue = {};
            for (item in cookieName)
            {
                if (typeof cookies[cookieName[item]] !== 'undefined')
                {
                    returnValue[cookieName[item]] = cookies[cookieName[item]];
                }
                else
                {
                    returnValue[cookieName[item]] = null;
                }
            }
        }
        else
        {
            returnValue = cookies;
        }

        return returnValue;
    };
    /**
    * filter - get array of cookies whose names match the provided RegExp
    *
    * @access public
    * @paramater Object RegExp - The regular expression to match against cookie names
    * @return Mixed - Object:hash of cookies whose names match the RegExp
    */
    constructor.prototype.filter = function (cookieNameRegExp)
    {
        var cookieName, returnValue = {}, cookies = parseCookies();

        if (typeof cookieNameRegExp === 'string')
        {
            cookieNameRegExp = new RegExp(cookieNameRegExp);
        }

        for (cookieName in cookies)
        {
            if (cookieName.match(cookieNameRegExp))
            {
                returnValue[cookieName] = cookies[cookieName];
            }
        }

        return returnValue;
    };
    /**
    * set - set or delete a cookie with desired options
    *
    * @access public
    * @paramater String cookieName - name of cookie to set
    * @paramater Mixed value - Any JS value. If not a string, will be JSON encoded; NULL to delete
    * @paramater Object options - optional list of cookie options to specify
    * @return void
    */
    constructor.prototype.set = function (cookieName, value, options)
    {
        if (typeof options !== 'object' || options === null)
        {
            options = {};
        }

        if (typeof value === 'undefined' || value === null)
        {
            value = '';
            options.hoursToLive = -8760;
        }

        else if (typeof value !== 'string')
        {
            if (typeof JSON === 'object' && JSON !== null && typeof JSON.stringify === 'function')
            {
                value = JSON.stringify(value);
            }
            else
            {
                throw new Error('cookies.set() received non-string value and could not serialize.');
            }
        }


        var optionsString = assembleOptionsString(options);

        document.cookie = cookieName + '=' + encodeURIComponent(value) + optionsString;
    };
    /**
    * del - delete a cookie (domain and path options must match those with which the cookie was set; this is really an alias for set() with parameters simplified for this use)
    *
    * @access public
    * @paramater MIxed cookieName - String name of cookie to delete, or Bool true to delete all
    * @paramater Object options - optional list of cookie options to specify ( path, domain )
    * @return void
    */
    constructor.prototype.del = function (cookieName, options)
    {
        var allCookies = {}, name;

        if (typeof options !== 'object' || options === null)
        {
            options = {};
        }

        if (typeof cookieName === 'boolean' && cookieName === true)
        {
            allCookies = this.get();
        }
        else if (typeof cookieName === 'string')
        {
            allCookies[cookieName] = true;
        }

        for (name in allCookies)
        {
            if (typeof name === 'string' && name !== '')
            {
                this.set(name, null, options);
            }
        }
    };
    /**
    * test - test whether the browser is accepting cookies
    *
    * @access public
    * @return Boolean
    */
    constructor.prototype.test = function ()
    {
        var returnValue = false, testName = 'cT', testValue = 'data';

        this.set(testName, testValue);

        if (this.get(testName) === testValue)
        {
            this.del(testName);
            returnValue = true;
        }

        return returnValue;
    };
    /**
    * setOptions - set default options for calls to cookie methods
    *
    * @access public
    * @param Object options - list of cookie options to specify
    * @return void
    */
    constructor.prototype.setOptions = function (options)
    {
        if (typeof options !== 'object')
        {
            options = null;
        }

        defaultOptions = resolveOptions(options);
    };

    return new constructor();
})();

(function ()
{
    if (window.jQuery)
    {
        (function ($)
        {
            $.cookies = jaaulde.utils.cookies;

            var extensions = {
                /**
                * $( 'selector' ).cookify - set the value of an input field, or the innerHTML of an element, to a cookie by the name or id of the field or element
                *                           (field or element MUST have name or id attribute)
                *
                * @access public
                * @param options OBJECT - list of cookie options to specify
                * @return jQuery
                */
                cookify: function (options)
                {
                    return this.each(function ()
                    {
                        var i, nameAttrs = ['name', 'id'], name, $this = $(this), value;

                        for (i in nameAttrs)
                        {
                            if (!isNaN(i))
                            {
                                name = $this.attr(nameAttrs[i]);
                                if (typeof name === 'string' && name !== '')
                                {
                                    if ($this.is(':checkbox, :radio'))
                                    {
                                        if ($this.attr('checked'))
                                        {
                                            value = $this.val();
                                        }
                                    }
                                    else if ($this.is(':input'))
                                    {
                                        value = $this.val();
                                    }
                                    else
                                    {
                                        value = $this.html();
                                    }

                                    if (typeof value !== 'string' || value === '')
                                    {
                                        value = null;
                                    }

                                    $.cookies.set(name, value, options);

                                    break;
                                }
                            }
                        }
                    });
                },
                /**
                * $( 'selector' ).cookieFill - set the value of an input field or the innerHTML of an element from a cookie by the name or id of the field or element
                *
                * @access public
                * @return jQuery
                */
                cookieFill: function ()
                {
                    return this.each(function ()
                    {
                        var n, getN, nameAttrs = ['name', 'id'], name, $this = $(this), value;

                        getN = function ()
                        {
                            n = nameAttrs.pop();
                            return !!n;
                        };

                        while (getN())
                        {
                            name = $this.attr(n);
                            if (typeof name === 'string' && name !== '')
                            {
                                value = $.cookies.get(name);
                                if (value !== null)
                                {
                                    if ($this.is(':checkbox, :radio'))
                                    {
                                        if ($this.val() === value)
                                        {
                                            $this.attr('checked', 'checked');
                                        }
                                        else
                                        {
                                            $this.removeAttr('checked');
                                        }
                                    }
                                    else if ($this.is(':input'))
                                    {
                                        $this.val(value);
                                    }
                                    else
                                    {
                                        $this.html(value);
                                    }
                                }

                                break;
                            }
                        }
                    });
                },
                /**
                * $( 'selector' ).cookieBind - call cookie fill on matching elements, and bind their change events to cookify()
                *
                * @access public
                * @param options OBJECT - list of cookie options to specify
                * @return jQuery
                */
                cookieBind: function (options)
                {
                    return this.each(function ()
                    {
                        var $this = $(this);
                        $this.cookieFill().change(function ()
                        {
                            $this.cookify(options);
                        });
                    });
                }
            };

            $.each(extensions, function (i)
            {
                $.fn[i] = this;
            });

        })(window.jQuery);
    }
})();