/* 初始化所有的命名空间*/
jQuery(function($) {
    $.extend({
        ns:function(namespace, context) {
            var parent = (context == null) ? window : context;
            var arr = namespace.split('.');
            for (var i = 0; i < arr.length; i++) {
                if (!!!parent[arr[i]]) {
                    parent[arr[i]] = {};
                }
                parent = parent[arr[i]];
            }

            // 例如: 支持 namespace = $.ns('dao.cube.modules')
            return parent;
        },
        /**
         * 查看某个Module是否在Namespace中定义， 原理同{$.ns()}
         * @param {Object} moduleName
         * @param {Object} context
         */
        require_module:function(moduleName, context) {
            var parent = (context == null) ? window : context;
            var arr = moduleName.split('.');
            for (var i = 0; i < arr.length; i++) {
                if (!!!parent[arr[i]]) {
                    throw new Error("required module not found: " + moduleName);
                }
                parent = parent[arr[i]];
            }
            return parent;
        }
    });
});


jQuery(function($) {

    // 默认配置
    var DefaultConf = {
        'preCount': 3,
        'container': null
    };

    var Slide = function(conf){
        this.conf = $.extend({}, DefaultConf, conf);
        this.init(conf);
    };

    Slide.prototype = {
        init: function(conf){
            // 初始状态
            this.preCount = this.conf.preCount;
            this.container = this.conf.container;
            this.items = this.container.find(this.conf.items);
            this.size = this.items.length;
            this.totalPage = Math.ceil(this.size / this.preCount);
            this.itemWidth = this.items.first().outerWidth(true);
            this.pageIndex = 1;

            // 为循环流畅滑动，前后各增加一页
            var aItems = this.items.filter(':lt('+this.preCount+')');
            var bItems = this.items.filter(':gt('+(this.size - this.preCount - 1)+')');
            aItems.clone().appendTo(this.container);
            bItems.clone().prependTo(this.container);

            // 初始slide的位置
            this.container.css({
                'left' : -(this.itemWidth * this.preCount),
                'width': this.itemWidth * ( this.size + 2 * this.preCount )
            });
        },
        next: function(callback){
            this.pageIndex++;
            if(this.pageIndex > this.totalPage){
                this.pageIndex = 1;
                this.container.css({
                    'left': 0
                });
            }
            this.animate(callback);
        },
        prev: function(callback){
            this.pageIndex--;
            if(this.pageIndex < 1){
                this.pageIndex = this.totalPage;
                this.container.css({
                    'left': -(this.itemWidth * (this.size + this.preCount))
                });
            }
            this.animate(callback);
        },
        jump: function(pIndex, callback){
            this.pageIndex = (pIndex < 1) ? 1 :
                (pIndex > this.totalPage) ? this.totalPage : pIndex;
            this.animate(callback);
        },
        animate: function(callback){
            var self = this;
            var distance = -(this.pageIndex * this.preCount * this.itemWidth);
            this.container.animate({
                'left': distance
            }, function(){
                if($.isFunction(callback)){
                    callback.apply(self, [self.pageIndex]);
                }
            });
        }
    };

    var namespaceName = 'dao.search.video.index',
    NameSpace = $.ns(namespaceName);
    NameSpace.Slide = Slide;
});

jQuery(function($) {
    var namespaceName = 'dao.search.video.index',
    NameSpace = $.ns(namespaceName);

    /**
     * slide模块鼠标hover
     * 效果：高亮 + 信息框上移 
     */
    var slideHoverItemSelector = '#slide .bd li';
    NameSpace.slideModsItemMouseHover = function(){
        $(slideHoverItemSelector).live('mouseover', function(evt){
            var self = $(this);
            self.find('.shadow-vanish').removeClass('inner-shadow');
            var iwrap = self.find('.info-wrap');
            iwrap.stop(true).animate({
                'bottom': 0
            }, 'fast');
        }).live('mouseout', function(evt){
            var self = $(this);
            self.find('.shadow-vanish').addClass('inner-shadow');
            var iwrap = self.find('.info-wrap');
            iwrap.stop(true).animate({
                'bottom': -24
            }, 'fast');
        });
    };
   
});

jQuery(function($) {
    var namespaceName = 'dao.search.video.index',
    NameSpace = $.ns(namespaceName);

    var Slide = $.require_module('dao.search.video.index.Slide');

    NameSpace.initSlide = function(){

        // 创建slide实例
        var $slide = new Slide({
            'preCount': 3,
            'container': $('#slide .cover ul'),
            'items': 'li'
        });

        // 当前是否正在动画中
        var inAnimate = false;

        // 左滑动按钮的事件处理
        $('#slide .bd .left-btn').live('click',function(evt){
            if(inAnimate){
                return false;
            }
            inAnimate = true;
            $slide.prev(function(pageIndex){
                inAnimate = false;
                updateTabStatus(pageIndex);
            });
            evt.preventDefault();
        });

        // 右滑动按钮的事件处理
        $('#slide .bd .right-btn').live('click',function(evt){
            if(inAnimate){
                return false;
            }
            inAnimate = true;
            $slide.next(function(pageIndex){
                inAnimate = false;
                updateTabStatus(pageIndex);
            });
            evt.preventDefault();
        });

        // tab 切换事件处理
        $('#slide .tab a').live('click', function(evt){
            var tab = $(this);
            var tabs = tab.closest('.tab').find('a');
            var pageIndex = tab.data('index');
            if(inAnimate){
                return false;
            }
            if(!tab.hasClass('cur')){
                tabs.removeClass('cur');
                tab.addClass('cur');
                inAnimate = true;
                $slide.jump(pageIndex, function(){
                    inAnimate = false;
                });
            }
            evt.preventDefault();
        });

        /**
         * 更新 tab 状态
         * page   1  2  3  4  5  6  7  8
         * idx    1  1  2  2  3  3  4  4
         */
        var tabs = $('#slide .tab a');
        function updateTabStatus(pageIndex){
            var idx = Math.ceil(pageIndex/2) - 1;
            tabs.removeClass('cur');
            tabs.eq(idx).addClass('cur');
        }

        // =====================================================
        // = 自动播放
        // =====================================================
        var autoPlay = true;
        $('#slide, #slide .bd li').live('mouseover', function(evt){
            autoPlay = false;
        }).live('mouseout', function(evt){
            autoPlay = true;
        });
        window.setInterval(function(){
            if(!autoPlay) return;
            inAnimate = true;
            $slide.next(function(pageIndex){
                inAnimate = false;
                updateTabStatus(pageIndex);
            });
        }, 4000);
    };
});


jQuery(function($) {
    var namespaceName = 'dao.search.video.index',
    NameSpace = $.ns(namespaceName);
    // 初始化首页一些模块的鼠标hover效果
    NameSpace.slideModsItemMouseHover();
    // 初始化slide模块
    NameSpace.initSlide();

});