/**
 * Much thanks to http://static.railstips.org/orderedlist
 */

(function($) {
    var self = null;
    var lutype = 'blocktypes';
    var searchValue = null;

    $.fn.liveUpdate = function(list, type) {
        return this.each(function() {
            new $.liveUpdate(this, list, type);
        });
    };

    $.liveUpdate = function(e, list, type) {
        this.field = $(e);
        $(e).data('liveUpdate', this);
        this.list = $('#' + list);
        this.lutype = 'blocktypes';

        if (typeof(type) != 'undefined') {
            this.lutype = type;
        }

        if (this.list.length > 0) {
            this.init();
        }
    };

    $.liveUpdate.prototype = {
        init: function() {
            var self = this;
            this.setupCache();
            this.field.parents('form').on('submit.liveupdate', function() { return false; });
            this.field.keyup(function() { self.filter(); });
            self.filter();
        },

        filter: function() {
            if (this.field.val() != searchValue) {
                if ($.trim(this.field.val()) == '') {
                    if (this.lutype == 'blocktypes') {
                        this.list.find('li').show();
                        this.list.find('.ccm-panel-add-block-set').show();
                    } else if (this.lutype == 'attributes') {
                        this.list.find('h5').show();
                        this.list.find('li').show();
                    } else if (this.lutype == 'stacks') {
                        this.list.children('li').addClass('ccm-stack-available');
                        this.list.children('li').removeClass('ccm-stack-selected');
                    } else if (this.lutype == 'intelligent-search') {
                        if (this.list.is(':visible')) {
                            this.list.hide();
                        }
                    } else {
                        this.list.children('li,div.li').show();
                    }
                    return;
                }
                if (this.lutype != 'intelligent-search' || this.field.val().length > 2) {
                    this.displayResults(this.getScores(this.field.val().toLowerCase()));
                } else if (this.lutype == 'intelligent-search') {
                    if (this.list.is(':visible')) {
                        this.list.hide();
                    }
                }
            }
            searchValue = this.field.val();
            if (searchValue == '' && this.lutype == 'intelligent-search') {
                if (this.list.is(':visible')) {
                    this.list.hide();
                }
            }

        },

        setupCache: function() {
            var self = this;
            this.cache = [];
            this.rows = [];
            var lutype = this.lutype;
            this.list.find('li,div.li').each(function() {
                if (lutype == 'blocktypes') {
                    self.cache.push($(this).find('span').html().toLowerCase());
                } else if (lutype == 'attributes') {
                    var val = $(this).find('a,span').html().toLowerCase();
                    self.cache.push(val);
                } else if (lutype == 'stacks') {
                    var val = $(this).find('a,span').html().toLowerCase();
                    self.cache.push(val);
                } else if (lutype == 'fileset') {
                    self.cache.push($(this).find('span[data-label=file-set-name]').html().toLowerCase());
                } else if (lutype == 'folder') {
                    self.cache.push($(this).find('span[data-label=folder-name]').html().toLowerCase());
                } else if (lutype == 'intelligent-search') {
                    var s = $(this).find('span').html();
                    if (s) {
                        self.cache.push(s.toLowerCase());
                    }
                }
                self.rows.push($(this));
            });
            this.cache_length = this.cache.length;
        },

        displayResults: function(scores) {
            var self = this;
            if (this.lutype == 'blocktypes') {
                this.list.find('.ccm-panel-add-block-set').hide();
                this.list.find('li,div.li').hide();
                $.each(scores, function(i, score) {
                    self.rows[score[1]].show();
                    self.rows[score[1]].closest('.ccm-panel-add-block-set').show();
                });
            } else if (this.lutype == 'attributes') {
                /*
                this.list.children('li').removeClass('ccm-attribute-available');
                this.list.children('li').removeClass('ccm-attribute-selected');
                this.list.children('li').removeClass('ccm-item-selected');
                $.each(scores, function(i, score) { self.rows[score[1]].addClass('ccm-attribute-available'); });
                this.list.children('li.item-select-list-header').removeClass("ccm-attribute-available");
                $(this.list.find('li.ccm-attribute-available')[0]).addClass('ccm-item-selected');
                */
                this.list.find('h5').hide();
                this.list.find('li').hide();
                $.each(scores, function(i, score) {
                    self.rows[score[1]].show();
                });

            } else if (this.lutype == 'stacks') {
                this.list.children('li').removeClass('ccm-stack-available');
                this.list.children('li').removeClass('ccm-stack-selected');
                this.list.children('li').removeClass('ccm-item-selected');
                $.each(scores, function(i, score) { self.rows[score[1]].addClass('ccm-stack-available'); });
                this.list.children('li.item-select-list-header').removeClass("ccm-stack-available");
                $(this.list.find('li.ccm-stack-available')[0]).addClass('ccm-item-selected');
            } else if (this.lutype == 'intelligent-search') {
                if (!this.list.is(':visible')) {
                    this.list.fadeIn(160, 'easeOutExpo');
                }
                this.list.find('.ccm-intelligent-search-results-module-onsite').hide();
                this.list.find('li').hide();
                var shown = 0;
                $.each(scores, function(i, score) {
                    $li = self.rows[score[1]];
                    if (score[0] > 0.75) {
                        shown++;
                        if (!$li.parent().parent().is(':visible')) {
                            $li.parent().parent().show();
                        }
                        $li.show();
                    }
                });
                this.list.find('li a').removeClass('ccm-intelligent-search-result-selected');
                this.list.find('li:visible a:first').addClass('ccm-intelligent-search-result-selected');
            } else {
                this.list.children('li,div.li').hide();
                $.each(scores, function(i, score) { self.rows[score[1]].show(); });
            }
        },

        getScores: function(term) {
            var scores = [];
            for (var i = 0; i < this.cache_length; i++) {
                var score = this.cache[i].score(term);
                if (score > 0) { scores.push([score, i]); }
            }
            return scores.sort(function(a, b) { return b[0] - a[0]; });
        }
    }
})(jQuery);