//banner
;(function($){
    $.fn.adaptiveRotation = function(options){
        var defaults = {
            autoRotation:true,//是否开启自动轮播
            time:5000,  //轮播间隔
            current: 'on',  //标识当前的class名称
            proportion:1920/600, //图片比例，宽度/高度
            proportionMobile:800/450, //手机图片比例，宽度/高度
            Resolution:1024,  //区分PC移动分辨率节点
            isOtaku:false,  //左右箭头是否外翻
            bannerBox: '.banner-box',  //限制banner宽高的div
            bannerList: '.banner-list',  //图片集的ul
            bannerImg:'.banner-img',   //图片的li
            currentClass:'.banner-img.on',   //图片的li
            preBtn: '.pre-btn',  //上一张图片的按钮
            nextBtn:'.next-btn',  //下一张图片的按钮
            bannerPrint:'.banner-print',  //生成小点点的div
            bannerPrintHtml:"<span></span>|<span class='on'></span>|on",  //生成小点点代码
            expand_textbox: ".expand-textbox",  //移动端拓展块，用来处理移动端banner上图下文（文字在图片下方不遮住图片的情况）,此处是文字块的class
            beforeFun : '',
            afterFun:'',
            notSetHeight:false,//不用设置height
            whiteClass:"banner-while-font",
            whiteBoxClass:"banner-while",
            resetOrderCallback:null
        };
        var opts = $.extend(defaults, options);
        var global_this = $(this);
        var autoRotation = opts.autoRotation;
        var time = opts.time;
        var on = opts.current;
        var whiteClass=opts.whiteClass;
        var whiteBoxClass=opts.whiteBoxClass;
        var resetOrderCallback = opts.resetOrderCallback;
        var proportion = opts.proportion;
        var proportionMobile = opts.proportionMobile;
        var Resolution = opts.Resolution;
        var isOtaku = opts.isOtaku;
        var bannerPrintHtml = opts.bannerPrintHtml;
        var bannerBox = global_this.find(opts.bannerBox);
        var bannerList = global_this.find(opts.bannerList);
        var bannerImg = global_this.find(opts.bannerImg);
        var preBtn = $("html").hasClass("LANG-sa")?global_this.find(opts.nextBtn):global_this.find(opts.preBtn);
        var nextBtn = $("html").hasClass("LANG-sa")?global_this.find(opts.preBtn):global_this.find(opts.nextBtn);
        var bannerPrint = global_this.find(opts.bannerPrint);
        var expand_textbox = global_this.find(opts.expand_textbox);

        var window_width = $(window).width(),
            bannerBox_width = bannerBox.width(),  //用来存放当前的显示宽度
            bannerBox_height = 0,  //用来存放显示区域的高度
            on_key = 0, //用来存放当前显示的图片key
            img_src = "",
            img_num = bannerImg.length,  //用来存放图片的个数
            setInterval_key = 0,  //存放自动轮播的key
            max_textHeight = 0,  //存放文本框中最大高度
            print_on = "on",  //存放轮播到当前的点点点的class，默认是on
            sport_status = false;  //动画状态，true=正在执行动画，false=当前无执行动画

        //初始化
        var refresh = function(){
            var $current = global_this.find(opts.currentClass);
            if($current.length&&$current.hasClass(whiteClass)){
                bannerBox.addClass(whiteBoxClass);
            }else{
                bannerBox.removeClass(whiteBoxClass);
            }
            window_width = $(window).width();  //获取浏览器窗口宽度
            bannerBox_width = bannerBox.width();  //获取banner显示区域的宽度

            if(opts.beforeFun != ''){
                opts.beforeFun();
            }

            if(window_width <= Resolution){
                //移动端 显示移动端的banner图片
                for(var i=0; i < img_num; i++){
                    img_src = bannerImg.eq(i).find("img").eq(0);
                    img_src.attr("src",img_src.data("wapsrc"));
                }
                //判断是否存在拓展块
                if(expand_textbox.length > 0){
                    var textbox_height = 0;
                    expand_textbox.outerHeight("auto");
                    for(var i=0; i < img_num; i++){
                        textbox_height = expand_textbox.eq(i).outerHeight();
                        if(i == 0)
                            max_textHeight = textbox_height;
                        else
                        if(max_textHeight < textbox_height)
                            max_textHeight = textbox_height;
                    }
                    expand_textbox.outerHeight(max_textHeight);  //设置所有块的高度统一为最大高的高度
                    bannerPrint.css({ "top": parseInt(bannerBox_width / proportionMobile) - 30, "bottom": "auto" });
                }
                nextBtn.hide();preBtn.hide();  //移动端隐藏左右箭头
                bannerBox_height = parseInt(bannerBox_width / proportionMobile) + max_textHeight;  //按比例计算出显示区域的高度
            }else{
                //PC 显示PC端的banner图片
                for(var i=0; i < img_num; i++){
                    img_src = bannerImg.eq(i).find("img").eq(0);

                    // 判断是否是IE8，如果是，首页banenr背景图换了(首页个性化，如果效果删了，可以删掉这段代码)
                    if ((baseLib.browserVersion()==6 || baseLib.browserVersion()==7 || baseLib.browserVersion()==8 || baseLib.browserVersion()==0) && img_src.data("pcsrcie8") != '' ) {
                        var ie8Img = $('.banner-block .index-banner-text .pic img').data('pcsrcie8');
                        //alert(ie8Img)
                        $('.banner-block .index-banner-text .pic img').attr('src',ie8Img);
                        img_src.attr("src",img_src.data("pcsrc"));
                    }else {
                        img_src.attr("src",img_src.data("pcsrc"));
                    }
                }
                bannerBox_height = parseInt(bannerBox_width / opts.proportion);  //按比例计算出显示区域的高度
                
                if (expand_textbox.length > 0) {
                    expand_textbox.height("auto");
                    bannerPrint.css({ "top": "auto", "bottom": 0 });
                }
                if(isOtaku){  //判断左右箭头是否外翻
                    global_this.css("position","relative");
                }
                nextBtn.show();preBtn.show();  //PC端显示左右箭头
            }


            on_key = bannerList.find("."+on).index();  //获取当前显示的图片key

            if(!opts.notSetHeight){
                bannerBox.height(bannerBox_height);  //设置显示区域的高度
                bannerList.height(bannerBox_height);  ////设置ul的高度
            }

            bannerList.width(bannerBox_width);  //设置ul的宽度

            //根据轮播的数量做特殊的判断
            switch(img_num){
                case 1:nextBtn.hide();preBtn.hide();sport_status = true;bannerPrint.hide();break;
                case 2:break;
                default:bannerImg.eq(on_key-1).addClass("pre");bannerImg.eq(on_key+1).addClass("next");break;
            }

            if(typeof opts.afterFun =="function"){
                opts.afterFun();
            }
        };
        refresh();

        //生成点点点
        var generatePriont = function(){
            var priont_html = "";
            var priont_hmtattr = bannerPrintHtml.split("|");
            print_on = priont_hmtattr[2];
            if(priont_hmtattr.length != 3){
                alert("bannerPrintHtml 参数不规范，请重新调整参数！");
                return false;
            }
            for(var i = 0; i < img_num; i++){
                if(i == on_key)
                    priont_html += priont_hmtattr[1];
                else
                    priont_html += priont_hmtattr[0];
            }
            bannerPrint.html(priont_html);
        };
        generatePriont();

        //点击下一张事件
        nextBtn.on("click",function(){
            if(img_num == 2){
                bannerImg.eq(on_key).siblings().addClass("next");
            }
            if(!sport_status){
                sport_status = true;
                if(autoRotation) clearTimeout(setInterval_key);
                beforeResetOrder(bannerList.find(".next").index());
                if($("html").hasClass("LANG-sa")){
                    bannerList.animate({marginRight:-bannerBox_width},400,function(){
                        resetOrder(global_this.find(".next").index(),"click");
                    });
                }else{
                    bannerList.animate({marginLeft:-bannerBox_width},400,function(){
                        resetOrder(global_this.find(".next").index(),"click");
                    });
                }

            }
        });

        //点击上一张事件
        preBtn.on("click",function(){
            if(img_num == 2){
                bannerImg.eq(on_key).siblings().addClass("pre");
            }
            if(!sport_status){
                sport_status = true;
                if(autoRotation) clearTimeout(setInterval_key);
                beforeResetOrder(bannerList.find(".pre").index());
                if($("html").hasClass("LANG-sa")){
                    bannerList.animate({marginRight:bannerBox_width},400,function(){
                        resetOrder(global_this.find(".pre").index(),"click");
                    });
                }else{
                    bannerList.animate({marginLeft:bannerBox_width},400,function(){
                        resetOrder(global_this.find(".pre").index(),"click");
                    });
                }

            }
        });

        //为生成的小点点添加事件
        bannerPrint.on("click","span",function(){
            var click_key = $(this).index();
            if(!sport_status){
                if(click_key > on_key){
                    bannerImg.eq(click_key).addClass("next").removeClass("pre").siblings().removeClass("next");
                    nextBtn.trigger("click");
                }
                if(click_key < on_key){
                    bannerImg.eq(click_key).addClass("pre").removeClass("next").siblings().removeClass("pre");
                    preBtn.trigger("click");
                }
            }
        });


        //判断是否加入自动轮播
        var autoRotation_function = function(){
            if(autoRotation){
                if(img_num > 1){
                    clearTimeout(setInterval_key);
                    setInterval_key = setTimeout(function(){
                        sport_status = true;
                        if(img_num == 2) bannerImg.eq(on_key).siblings().addClass("next");
                        beforeResetOrder(bannerList.find(".next").index());
                        if($("html").hasClass("LANG-sa")){
                            bannerList.animate({marginRight:-bannerBox_width},400,function(){
                                resetOrder(global_this.find(".next").index(),"auto");
                                autoRotation_function();
                            });
                        }else{
                            bannerList.animate({marginLeft:-bannerBox_width},400,function(){
                                resetOrder(global_this.find(".next").index(),"auto");
                                autoRotation_function();
                            });
                        }

                    },time);
                }
            }
        };
        autoRotation_function();

        //动画执行之前
        var beforeResetOrder = function(now_key){
            if(bannerImg.eq(now_key).hasClass(whiteClass)){
                bannerBox.addClass(whiteBoxClass);
            }else{
                bannerBox.removeClass(whiteBoxClass);
            }
        }

        //动画执行后重置序列
        var resetOrder = function(now_key,style){
            bannerImg.eq(now_key).addClass(on).siblings().removeClass(on);
            bannerPrint.find("span").eq(now_key).addClass(print_on).siblings().removeClass(print_on);
            on_key = bannerList.find("."+on).index();

            if(img_num == 2){
                bannerImg.removeClass("next").removeClass("pre");
            }else{
                if(now_key+1 >= img_num){
                    bannerImg.eq(0).addClass("next").siblings().removeClass("next");
                }else{
                    bannerImg.eq(now_key+1).addClass("next").siblings().removeClass("next");
                }
                bannerImg.eq(now_key-1).addClass("pre").siblings().removeClass("pre");
            }
           if(typeof resetOrderCallback=="function"){
               resetOrderCallback(now_key);
           }

            if($("html").hasClass("LANG-sa")){
                bannerList.css("margin-right",0);
            }else{
                bannerList.css("margin-left",0);
            }
            sport_status = false;
            if(style == "click") autoRotation_function();
        };

        //页面窗口发生改变时重新初始化
        $(window).resize(function(){
            refresh();
        });

        //以下开始移动端触摸事件处理
        if (window.addEventListener) {
            var obj = bannerList[0];
            var touch_startX = 0;  //存放刚开始点击屏幕的X坐标
            var touch_startY = 0;  //存放刚开始点击屏幕的Y坐标
            var touch_endX = 0;  //存放点击移动结束X的坐标
            var touch_endY = 0;  //存放点击移动结束Y的坐标
            var touch_distanceX = 0; //存放移动的横向距离
            var touch_distanceY = 0; //存放移动的纵向距离
            var nowScroll = 0;
            var gesture_Staus = 0; //判断手势状态0为初始，1位X，2为Y
            if(img_num > 1){
                obj.addEventListener('touchstart', function(event) {
                    // 如果这个元素的位置内只有一个手指的话
                    if (event.targetTouches.length == 1) {
                        event.stopPropagation();
                        var touch = event.targetTouches[0];
                        touch_startX = touch.clientX;
                        touch_startY = touch.clientY;
                        touch_endX = touch.clientX;
                        touch_endY = touch.clientY;
                        nowScroll = $("body").scrollTop();
                        gesture_Staus = 0;
                        if(autoRotation) clearTimeout(setInterval_key);
                    }
                }, false);

                obj.addEventListener('touchmove', function(event) {
                    // 如果这个元素的位置内只有一个手指的话
                    if (event.targetTouches.length == 1) {
                        event.preventDefault();
                        var touch = event.targetTouches[0];
                        touch_endX = touch.clientX;
                        touch_endY = touch.clientY;
                        touch_distanceX = $("html").hasClass("LANG-sa")?(touch_startX-touch_endX):(touch_endX - touch_startX);
                        touch_distanceY = touch_endY - touch_startY;
                        if(!sport_status){
                            if(img_num == 2){
                                if(touch_distanceX > 0)
                                    bannerImg.eq(on_key).siblings().addClass("pre").removeClass("next");
                                else
                                    bannerImg.eq(on_key).siblings().addClass("next").removeClass("pre");
                            }
                            switch(gesture_Staus){
                                case 0: if(Math.abs(touch_distanceY) > Math.abs(touch_distanceX)*1.5){
                                        gesture_Staus = 2;
                                     }else{ 
                                         gesture_Staus = 1;
                                        } break;
                                case 1:
                                
                                if($("html").hasClass("LANG-sa")){
                                    obj.style.marginRight = touch_distanceX + "px"; 
                                }else{
                                    obj.style.marginLeft = touch_distanceX + "px"; 
                                }
                               
                                break;
                                case 2: $("body").scrollTop(nowScroll - touch_distanceY); break;
                            }
                        }

                    }
                }, false);

                obj.addEventListener('touchend', function(event) {
                    touch_distanceX =  $("html").hasClass("LANG-sa")?( touch_startX-touch_endX):(touch_endX - touch_startX);
                    if (gesture_Staus == 1) {
                        if (Math.abs(touch_distanceX) < 120) {
                            if($("html").hasClass("LANG-sa")){
                                bannerList.animate({ "marginRight": 0 }, 100);
                            }else{
                                bannerList.animate({ "marginLeft": 0 }, 100);
                            }
                            if (autoRotation) autoRotation_function();
                        } else {
                            if (!sport_status) {
                                sport_status = true;
                                if (touch_distanceX < 0) {
                                    beforeResetOrder(bannerList.find(".next").index())
                                    if($("html").hasClass("LANG-sa")){
                                        bannerList.animate({ "marginRight": -bannerBox_width }, 100, function () {
                                            resetOrder(bannerList.find(".next").index(), "click");
                                        });
                                    }else{
                                        bannerList.animate({ "marginLeft": -bannerBox_width }, 100, function () {
                                            resetOrder(bannerList.find(".next").index(), "click");
                                        });
                                    }

                                } else {
                                    beforeResetOrder(bannerList.find(".pre").index());
                                    if($("html").hasClass("LANG-sa")){
                                        bannerList.animate({ "marginRight": bannerBox_width }, 200, function () {
                                            resetOrder(bannerList.find(".pre").index(), "click");
                                        });
                                    }else{
                                        bannerList.animate({ "marginLeft": bannerBox_width }, 200, function () {
                                            resetOrder(bannerList.find(".pre").index(), "click");
                                        });
                                    }

                                }
                            } else {
                                if (autoRotation) autoRotation_function();
                            }
                        }
                    }
                }, false);
            }
        }

    };

})(jQuery);