/*
* https://raw.github.com/jboesch/Gritter/master/js/jquery.gritter.js
* Gritter for jQuery
* http://www.boedesign.com/
*
* Copyright (c) 2011 Jordan Boesch
* Dual licensed under the MIT and GPL licenses.
*
* Date: March 29, 2011
* Version: 1.7.1
*/

(function ($) {

    /**
    * Set it up as an object under the jQuery namespace
    */
    $.gritter = {};

    /**
    * Set up global options that the user can over-ride
    */
    $.gritter.options = {
        position: '',
        fade_in_speed: 'medium', // how fast notifications fade in
        fade_out_speed: 1000, // how fast the notices fade out
        time: 6000 // hang on the screen for...
    }

    /**
    * Add a gritter notification to the screen
    * @see Gritter#add();
    */
    $.gritter.add = function (params) {

        try {
            return Gritter.add(params || {});
        } catch (e) {

            var err = 'Gritter Error: ' + e;
            (typeof (console) != 'undefined' && console.error) ?
				console.error(err, params) :
				alert(err);

        }

    }

    /**
    * Remove a gritter notification from the screen
    * @see Gritter#removeSpecific();
    */
    $.gritter.remove = function (id, params) {
        Gritter.removeSpecific(id, params || {});
    }

    /**
    * Remove all notifications
    * @see Gritter#stop();
    */
    $.gritter.removeAll = function (params) {
        Gritter.stop(params || {});
    }

    /**
    * Big fat Gritter object
    * @constructor (not really since it's object literal)
    */
    var Gritter = {

        // Public - options to over-ride with $.gritter.options in "add"
        position: '',
        fade_in_speed: '',
        fade_out_speed: '',
        time: '',

        // Private - no touchy the private parts
        _custom_timer: 0,
        _item_count: 0,
        _is_setup: 0,
        _tpl_close: '<div class="gritter-close"></div>',
        _tpl_item: '<div id="gritter-item-[[number]]" class="gritter-item-wrapper [[item_class]]" style="display:none"><div class="gritter-top"></div><div class="gritter-item">[[close]][[image]]<div class="[[class_name]]"><span class="gritter-title">[[username]]</span><p>[[text]]</p></div><div style="clear:both"></div></div><div class="gritter-bottom"></div></div>',
        _tpl_wrap: '<div id="gritter-notice-wrapper"></div>',

        /**
        * Add a gritter notification to the screen
        * @param {Object} params The object that contains all the options for drawing the notification
        * @return {Integer} The specific numeric id to that gritter notification
        */
        add: function (params) {

            // We might have some issues if we don't have a title or text!
            if (!params.title) {
                throw 'You need to fill out the first 2 params: "title" and "text"';
            }

            // Check the options and set them once
            if (!this._is_setup) {
                this._runSetup();
            }

            // Basics
            var user = params.title,
				text = params.text,
				image = params.image || '',
                icon = params.icon || '',
				sticky = params.sticky || false,
				item_class = params.class_name || '',
                position = $.gritter.options.position,
				time_alive = params.time || '';

            this._verifyWrapper();

            this._item_count++;
            var number = this._item_count,
				tmp = this._tpl_item;

            // Assign callbacks
            $(['before_open', 'after_open', 'before_close', 'after_close']).each(function (i, val) {
                Gritter['_' + val + '_' + number] = ($.isFunction(params[val])) ? params[val] : function () { }
            });

            // Reset
            this._custom_timer = 0;

            // A custom fade time set
            if (time_alive) {
                this._custom_timer = time_alive;
            }

            var image_str = (image != '') ? '<img src="' + image + '" class="gritter-image" />' : '';
            var icon_str = (icon != '') ? '<i class="' + icon + ' gritter-icon"></i>' : '';
            var class_name = (image != ''|| icon != '') ? 'gritter-with-image' : 'gritter-without-image';

            var iconImage = '';
            
            if (image_str != '')
                iconImage = image_str;
            
            if (icon_str != '')
                iconImage = icon_str;

            // String replacements on the template
            tmp = this._str_replace(
				['[[username]]', '[[text]]', '[[close]]', '[[image]]', '[[number]]', '[[class_name]]', '[[item_class]]'],
				[user, text, this._tpl_close, iconImage, this._item_count, class_name, item_class], tmp
			);

            this['_before_open_' + number]();
            $('#gritter-notice-wrapper').addClass(position).append(tmp);

            var item = $('#gritter-item-' + this._item_count);

            item.fadeIn(this.fade_in_speed, function () {
                Gritter['_after_open_' + number]($(this));
            });

            if (!sticky) {
                this._setFadeTimer(item, number);
            }

            // Bind the hover/unhover states
            $(item).bind('mouseenter mouseleave', function (event) {
                if (event.type == 'mouseenter') {
                    if (!sticky) {
                        Gritter._restoreItemIfFading($(this), number);
                    }
                }
                else {
                    if (!sticky) {
                        Gritter._setFadeTimer($(this), number);
                    }
                }
                Gritter._hoverState($(this), event.type);
            });

            return number;

        },

        /**
        * If we don't have any more gritter notifications, get rid of the wrapper using this check
        * @private
        * @param {Integer} unique_id The ID of the element that was just deleted, use it for a callback
        * @param {Object} e The jQuery element that we're going to perform the remove() action on
        * @param {Boolean} manual_close Did we close the gritter dialog with the (X) button
        */
        _countRemoveWrapper: function (unique_id, e, manual_close) {

            // Remove it then run the callback function
            e.remove();
            this['_after_close_' + unique_id](e, manual_close);

            // Check if the wrapper is empty, if it is.. remove the wrapper
            if ($('.gritter-item-wrapper').length == 0) {
                $('#gritter-notice-wrapper').remove();
            }

        },

        /**
        * Fade out an element after it's been on the screen for x amount of time
        * @private
        * @param {Object} e The jQuery element to get rid of
        * @param {Integer} unique_id The id of the element to remove
        * @param {Object} params An optional list of params to set fade speeds etc.
        * @param {Boolean} unbind_events Unbind the mouseenter/mouseleave events if they click (X)
        */
        _fade: function (e, unique_id, params, unbind_events) {

            var params = params || {},
				fade = (typeof (params.fade) != 'undefined') ? params.fade : true;
            fade_out_speed = params.speed || this.fade_out_speed,
                manual_close = unbind_events;

            this['_before_close_' + unique_id](e, manual_close);

            // If this is true, then we are coming from clicking the (X)
            if (unbind_events) {
                e.unbind('mouseenter mouseleave');
            }

            // Fade it out or remove it
            if (fade) {

                e.animate({
                    opacity: 0
                }, fade_out_speed, function () {
                    e.animate({ height: 0 }, 300, function () {
                        Gritter._countRemoveWrapper(unique_id, e, manual_close);
                    })
                })

            }
            else {

                this._countRemoveWrapper(unique_id, e);

            }

        },

        /**
        * Perform actions based on the type of bind (mouseenter, mouseleave) 
        * @private
        * @param {Object} e The jQuery element
        * @param {String} type The type of action we're performing: mouseenter or mouseleave
        */
        _hoverState: function (e, type) {

            // Change the border styles and add the (X) close button when you hover
            if (type == 'mouseenter') {

                e.addClass('hover');

                // Show close button
                e.find('.gritter-close').show();

                // Clicking (X) makes the perdy thing close
                e.find('.gritter-close').click(function () {

                    var unique_id = e.attr('id').split('-')[2];
                    Gritter.removeSpecific(unique_id, {}, e, true);

                });

            }
            // Remove the border styles and hide (X) close button when you mouse out
            else {

                e.removeClass('hover');

                // Hide close button
                e.find('.gritter-close').hide();

            }

        },

        /**
        * Remove a specific notification based on an ID
        * @param {Integer} unique_id The ID used to delete a specific notification
        * @param {Object} params A set of options passed in to determine how to get rid of it
        * @param {Object} e The jQuery element that we're "fading" then removing
        * @param {Boolean} unbind_events If we clicked on the (X) we set this to true to unbind mouseenter/mouseleave
        */
        removeSpecific: function (unique_id, params, e, unbind_events) {

            if (!e) {
                var e = $('#gritter-item-' + unique_id);
            }

            // We set the fourth param to let the _fade function know to 
            // unbind the "mouseleave" event.  Once you click (X) there's no going back!
            this._fade(e, unique_id, params || {}, unbind_events);

        },

        /**
        * If the item is fading out and we hover over it, restore it!
        * @private
        * @param {Object} e The HTML element to remove
        * @param {Integer} unique_id The ID of the element
        */
        _restoreItemIfFading: function (e, unique_id) {

            clearTimeout(this['_int_id_' + unique_id]);
            e.stop().css({ opacity: '' });

        },

        /**
        * Setup the global options - only once
        * @private
        */
        _runSetup: function () {

            for (opt in $.gritter.options) {
                this[opt] = $.gritter.options[opt];
            }
            this._is_setup = 1;

        },

        /**
        * Set the notification to fade out after a certain amount of time
        * @private
        * @param {Object} item The HTML element we're dealing with
        * @param {Integer} unique_id The ID of the element
        */
        _setFadeTimer: function (e, unique_id) {

            var timer_str = (this._custom_timer) ? this._custom_timer : this.time;
            this['_int_id_' + unique_id] = setTimeout(function () {
                Gritter._fade(e, unique_id);
            }, timer_str);

        },

        /**
        * Bring everything to a halt
        * @param {Object} params A list of callback functions to pass when all notifications are removed
        */
        stop: function (params) {

            // callbacks (if passed)
            var before_close = ($.isFunction(params.before_close)) ? params.before_close : function () { };
            var after_close = ($.isFunction(params.after_close)) ? params.after_close : function () { };

            var wrap = $('#gritter-notice-wrapper');
            before_close(wrap);
            wrap.fadeOut(function () {
                $(this).remove();
                after_close();
            });

        },

        /**
        * An extremely handy PHP function ported to JS, works well for templating
        * @private
        * @param {String/Array} search A list of things to search for
        * @param {String/Array} replace A list of things to replace the searches with
        * @return {String} sa The output
        */
        _str_replace: function (search, replace, subject, count) {

            var i = 0, j = 0, temp = '', repl = '', sl = 0, fl = 0,
				f = [].concat(search),
				r = [].concat(replace),
				s = subject,
				ra = r instanceof Array, sa = s instanceof Array;
            s = [].concat(s);

            if (count) {
                this.window[count] = 0;
            }

            for (i = 0, sl = s.length; i < sl; i++) {

                if (s[i] === '') {
                    continue;
                }

                for (j = 0, fl = f.length; j < fl; j++) {

                    temp = s[i] + '';
                    repl = ra ? (r[j] !== undefined ? r[j] : '') : r[0];
                    s[i] = (temp).split(f[j]).join(repl);

                    if (count && s[i] !== temp) {
                        this.window[count] += (temp.length - s[i].length) / f[j].length;
                    }

                }
            }

            return sa ? s : s[0];

        },

        /**
        * A check to make sure we have something to wrap our notices with
        * @private
        */
        _verifyWrapper: function () {

            if ($('#gritter-notice-wrapper').length == 0) {
                $('body').append(this._tpl_wrap);
            }

        }

    }

})(jQuery);