$.fn.uploadrun = function (opt) {
    //语言版本
    languageopt = {
        cn: {
            unsupportmsg: '该上传插件不支持您的浏览器！如果您使用的是ie浏览器，请尝试升级 flash 播放器',
            browsemsg: '点击选择文件',
            keepaddmsg: '继续添加',
            allowtypemsg: '支持格式：',
            delmsg: '删除',
            rightmsg: '向右旋转',
            leftmsg: '向左旋转',
            overmaxmsg: '文件大小超出',
            pausemsg: '上传暂停',
            failedmsg: '上传失败，请重试',
            previewmsg: '预览中',
            notpreviewmsg: '不能预览',
            selectedmsg: '选中@0个文件，共@1。',
            successmsg: '已成功上传@0，上传失败@1',
            countmsg: '共@0张（@1），已上传@2张',
            failedcountmsg: '，失败@0张',
            stopmsg: '暂停上传',
            continuemsg: '继续上传',
            startmsg: '开始上传',
            q_type_denied: opt.fileextmsg || "请选择支持的文件格式！",
            q_exceed_num_limit: "单次只能上传50个文件！",
            q_exceed_size_limit: "单次上传的文件总量不能超过 @0kb！",
            q_exceed_size: opt.maxsizemsg || "单个文件容量过大,最大 @0kb！",
            q_duplicate: "选择了重复文件！",

        },
        en: {
            unsupportmsg: 'webuploader does not support the browser you are using.',
            browsemsg: 'browse',
            keepaddmsg: 'keep adding',
            allowtypemsg: 'allow upload format:',
            delmsg: 'delete',
            rightmsg: 'rotate right',
            leftmsg: 'rotate left',
            overmaxmsg: 'file size exceeds maximum',
            pausemsg: 'pause',
            failedmsg: 'upload failed,please try agains',
            previewmsg: 'preview',
            notpreviewmsg: "can't preview",
            selectedmsg: 'selected @0 files，total @1.',
            successmsg: 'success @0，fail@1',
            countmsg: 'total @0(@1)，success @',
            failedcountmsg: '，fail @0',
            stopmsg: 'pause',
            continuemsg: 'continue',
            startmsg: 'start',
            q_type_denied: opt.fileextmsg || "please select a supported file format!",
            q_exceed_num_limit: "only 50 files can be uploaded at a single time!",
            q_exceed_size_limit: "total file uploads cannot exceed @0kb！",
            q_exceed_size: opt.maxsizemsg || "the file is too large,maximum @0kb!",
            q_duplicate: "duplicate file selected!",

        }
    };

    var $ = jquery,

        $wrap = $(opt.fileid),

        swfurl = window.location.protocol + '//' + window.location.host + $("script[websiteurl]").attr("websiteurl") + 'res/webuploader/uploader.swf',

        uploadurl = window.location.protocol + '//' + window.location.host + $("script[websiteurl]").attr("websiteurl") + 'ajax/whirupload.aspx?formid=' + opt.formid + '&ispic=' + (opt.ispic ? '1' : '0'),

        // 图片容器
        $queue = $('<ul class="filelist"></ul>')
            .appendto($wrap.find('.queuelist')),

        // 状态栏，包括进度和控制按钮
        $statusbar = $wrap.find('.statusbar'),

        // 文件总体选择信息。
        $info = $statusbar.find('.info'),

        // 上传按钮
        $upload = $wrap.find('.uploadbtn'),

        // 没选择文件之前的内容。
        $placeholder = $wrap.find('.placeholder'),

        // 总体进度条
        $progress = $statusbar.find('.progress').hide(),

        // 添加的文件数量
        filecount = 0,

        // 添加的文件总大小
        filesize = 0,

        //语言版本 cn-中文，en-英文
        lang = opt.lang || "cn",

        // 优化retina, 在retina下这个值是2
        ratio = window.devicepixelratio || 1,

        // 缩略图大小
        thumbnailwidth = 110 * ratio,
        thumbnailheight = 110 * ratio,

        // 可能有pedding, ready, uploading, confirm, done.
        state = 'pedding',

        // 所有文件的进度信息，key为file id
        percentages = {},

        supporttransition = (function () {
            var s = document.createelement('p').style,
                r = 'transition' in s ||
                    'webkittransition' in s ||
                    'moztransition' in s ||
                    'mstransition' in s ||
                    'otransition' in s;
            s = null;
            return r;
        })(),

        // webuploader实例
        uploader;

    if (!webuploader.uploader.support()) {
        alert(languageopt[lang]['unsupportmsg']);
        throw new error(languageopt[lang]['unsupportmsg']);
    }

    // 实例化
    uploader = webuploader.create({
        pick: {
            id: opt.filepicker,
            label: languageopt[lang]['browsemsg'],
            multiple: opt.ismulti
        },
        dnd: opt.fileid + ' .queuelist',
        paste: document.body,
        //上传类型
        accept: {
            title: 'images',
            extensions: opt.fileext ? opt.fileext : 'gif,jpg,jpeg,bmp,png',
            mimetypes: opt.ispic ? 'image/*' : ''
        },

        // swf文件路径
        swf: swfurl,
        //是否允许拖拽
        disableglobaldnd: true,
        //分片上传
        chunked: true,
        //上传文件接收地址
        server: uploadurl,
        //最多选择文件数量
        filenumlimit: 50,
        //总文件大小
        filesizelimit: opt.size ? opt.size * 20 * 1024 : 200 * 1024 * 1024,    // 200 m   文件大小限制
        //单个文件大小                               
        filesinglesizelimit: opt.size ? opt.size * 1024 : 5 * 1024 * 1024    // 5 m  单文件大小限制
    });

    // 添加“添加文件”的按钮，
    uploader.addbutton({
        id: opt.filepicker2,
        label: languageopt[lang]['keepaddmsg']
    });

    $placeholder.append("<div>" + languageopt[lang]['allowtypemsg'] + opt.fileext + "</div>");


    // 当有文件添加进来时执行，负责view的创建
    function addfile(file) {
        var $li = $('<li id="' + file.id + '">' +
            '<p class="title">' + file.name + '</p>' +
            '<p class="imgwrap"></p>' +
            '<p class="progress"><span></span></p>' +
            '</li>'),

            $btns = $('<div class="file-panel">' +
                '<span class="cancel">' + languageopt[lang]['delmsg'] + '</span>' +
                '<span class="rotateright">' + languageopt[lang]['rightmsg'] + '</span>' +
                '<span class="rotateleft">' + languageopt[lang]['leftmsg'] + '</span></div>').appendto($li),
            $prgress = $li.find('p.progress span'),
            $wrap = $li.find('p.imgwrap'),
            $info = $('<p class="error"></p>'),

            showerror = function (code) {
                switch (code) {
                    case 'exceed_size':
                        text = languageopt[lang]['overmaxmsg'];
                        break;

                    case 'interrupt':
                        text = languageopt[lang]['pausemsg'];
                        break;

                    default:
                        text = languageopt[lang]['failedmsg'];
                        break;
                }

                $info.text(text).appendto($li);
            };

        if (file.getstatus() === 'invalid') {
            showerror(file.statustext);
        } else {
            // @todo lazyload
            $wrap.text(languageopt[lang]['previewmsg']);
            uploader.makethumb(file, function (error, src) {
                if (error) {
                    $wrap.text(languageopt[lang]['notpreviewmsg']);
                    return;
                }

                var img = $('<img src="' + src + '">');
                $wrap.empty().append(img);
            }, thumbnailwidth, thumbnailheight);

            percentages[file.id] = [file.size, 0];
            file.rotation = 0;
            $upload.removeclass("disabled");
        }

        file.on('statuschange', function (cur, prev) {
            if (prev === 'progress') {
                $prgress.hide().width(0);
            } else if (prev === 'queued') {
                $li.off('mouseenter mouseleave');
                $btns.remove();
            }

            // 成功
            if (cur === 'error' || cur === 'invalid') {
                console.log(file.statustext);
                showerror(file.statustext);
                percentages[file.id][1] = 1;
            } else if (cur === 'interrupt') {
                showerror('interrupt');
            } else if (cur === 'queued') {
                percentages[file.id][1] = 0;
            } else if (cur === 'progress') {
                $info.remove();
                $prgress.css('display', 'block');
            } else if (cur === 'complete') {
                $li.append('<span class="success"></span>');
            }

            $li.removeclass('state-' + prev).addclass('state-' + cur);
        });

        $li.on('mouseenter', function () {
            $btns.stop().animate({ height: 30 });
        });

        $li.on('mouseleave', function () {
            $btns.stop().animate({ height: 0 });
        });

        $btns.on('click', 'span', function () {
            var index = $(this).index(),deg;

            switch (index) {
                case 0:
                    uploader.removefile(file);
                    return;

                case 1:
                    file.rotation += 90;
                    break;

                case 2:
                    file.rotation -= 90;
                    break;
            }

            if (supporttransition) {
                deg = 'rotate(' + file.rotation + 'deg)';
                $wrap.css({
                    '-webkit-transform': deg,
                    '-mos-transform': deg,
                    '-o-transform': deg,
                    'transform': deg
                });
            } else {
                $wrap.css('filter', 'progid:dximagetransform.microsoft.basicimage(rotation=' + (~~((file.rotation / 90) % 4 + 4) % 4) + ')');
            }
        });

        $li.appendto($queue);
    }

    // 负责view的销毁
    function removefile(file) {
        var $li = $('#' + file.id);

        delete percentages[file.id];
        updatetotalprogress();
        $li.off().find('.file-panel').off().end().remove();
    }

    function updatetotalprogress() {
        var loaded = 0,
            total = 0,
            spans = $progress.children(),
            percent;

        $.each(percentages, function (k, v) {
            total += v[0];
            loaded += v[0] * v[1];
        });

        percent = total ? loaded / total : 0;

        spans.eq(0).text(math.round(percent * 100) + '%');
        spans.eq(1).css('width', math.round(percent * 100) + '%');
        updatestatus();
    }

    function updatestatus() {
        var text = '', stats;

        if (state === 'ready') {
            text = languageopt[lang]['selectedmsg'].replace("@0", filecount).replace("@1", webuploader.formatsize(filesize));
        } else if (state === 'confirm') {
            stats = uploader.getstats();
            if (stats.uploadfailnum) {
                text = languageopt[lang]['successmsg'].replace("@0", stats.successnum).replace("@1", stats.uploadfailnum);
            }

        } else {
            stats = uploader.getstats();
            text = languageopt[lang]['countmsg'].replace("@0", filecount).replace("@1", webuploader.formatsize(filesize)).replace("@2", stats.successnum);

            if (stats.uploadfailnum) {
                text = languageopt[lang]['failedcountmsg'].replace("@0", stats.uploadfailnum);
            }
        }

        $info.html(text);
    }

    function setstate(val) {
        var file, stats;

        if (val === state) {
            return;
        }

        $upload.removeclass('state-' + state);
        $upload.addclass('state-' + val);
        state = val;

        switch (state) {
            case 'pedding':
                $placeholder.removeclass('element-invisible');
                $queue.parent().removeclass('filled');
                $queue.hide();
                $statusbar.addclass('element-invisible');
                uploader.refresh();
                break;

            case 'ready':
                $placeholder.addclass('element-invisible');
                $(opt.filepicker2).removeclass('element-invisible');
                $queue.parent().addclass('filled');
                $queue.show();
                $statusbar.removeclass('element-invisible');
                uploader.refresh();
                break;

            case 'uploading':
                $(opt.filepicker2).addclass('element-invisible');
                $progress.show();
                $upload.text(languageopt[lang]['stopmsg']);
                break;

            case 'paused':
                $progress.show();
                $upload.text(languageopt[lang]['continuemsg']); startmsg
                break;

            case 'confirm':
                $progress.hide();
                $upload.text(languageopt[lang]['startmsg']).addclass('disabled');

                stats = uploader.getstats();
                if (stats.successnum && !stats.uploadfailnum) {
                    setstate('finish');
                    return;
                }
                break;
            case 'finish':
                $(opt.filepicker2).removeclass('element-invisible');
                stats = uploader.getstats();
                if (stats.successnum) {

                    //alert('上传成功');
                } else {
                    // 没有成功的图片，重设
                    state = 'done';
                    location.reload();
                }
                break;
        }

        updatestatus();
    }

    uploader.onuploadprogress = function (file, percentage) {
        var $li = $('#' + file.id),
            $percent = $li.find('.progress span');

        $percent.css('width', percentage * 100 + '%');
        percentages[file.id][1] = percentage;
        updatetotalprogress();
    };

    uploader.onfilequeued = function (file) {
        filecount++;
        filesize += file.size;

        if (filecount === 1) {
            $placeholder.addclass('element-invisible');
            $statusbar.show();
        }

        addfile(file);
        setstate('ready');
        updatetotalprogress();
    };

    uploader.onfiledequeued = function (file) {
        filecount--;
        filesize -= file.size;

        if (!filecount) {
            setstate('pedding');
        }

        removefile(file);
        updatetotalprogress();

    };
    // 文件上传成功
    uploader.on('uploadsuccess', function (file, response) {
        if (response.result) {
            // 上传成功
            if (opt.ismulti)
                $(opt.fileurl).val($(opt.fileurl).val() + "*" + response.msg);
            else
                $(opt.fileurl).val(response.msg);
        } else {
            // 上传错误或失败
            var $file = $("#" + file.id);
            $error = $('<p class="error"></p>');
            $error.text(response.msg).appendto($file);
            $file.find(".success").remove();
        }
    });

    uploader.on('all', function (type) {
        var stats;
        switch (type) {
            case 'uploadfinished':
                setstate('confirm');
                break;
            case 'startupload':
                setstate('uploading');
                break;

            case 'stopupload':
                setstate('paused');
                break;
        }
    });

    uploader.onerror = function (code) {
        switch (code) {
            case 'q_type_denied':
                alert(languageopt[lang]['q_type_denied']);
                break;
            case 'q_exceed_num_limit':
                alert(languageopt[lang]['q_exceed_num_limit']);
                break;
            case 'q_exceed_size_limit':
                alert(languageopt[lang]['q_exceed_size_limit'].replace("@0", opt.size ? opt.size * 20 : 200));
                break;
            case 'f_exceed_size':
                alert(languageopt[lang]['q_exceed_size'].replace("@0", opt.size ? opt.size : 5));
                break;
            case 'f_duplicate':
                alert(languageopt[lang]['q_duplicate']);
                break;
        }
    };

    $upload.on('click', function () {
        if ($(this).hasclass('disabled')) {
            return false;
        }

        if (state === 'ready') {
            uploader.upload();
        } else if (state === 'paused') {
            uploader.upload();
        } else if (state === 'uploading') {
            uploader.stop();
        }
    });

    $info.on('click', '.retry', function () {
        uploader.retry();
    });

    $info.on('click', '.ignore', function () {
        alert('todo');
    });

    $upload.addclass('state-' + state);

    updatetotalprogress();

    /*关闭上传框窗口后恢复上传框初始状态*/
    function closeuploader() {
        // 移除所有缩略图并将上传文件移出上传序列
        for (var i = 0; i < uploader.getfiles().length; i++) {
            // 将图片从上传序列移除
            uploader.removefile(uploader.getfiles()[i]);

            // 将图片从缩略图容器移除
            var $li = $('#' + uploader.getfiles()[i].id);
            $li.off().remove();
        }
        setstate('pedding');
        // 重置文件总个数和总大小
        filecount = 0;
        filesize = 0;
        // 重置uploader，目前只重置了文件队列
        uploader.reset();
        // 更新状态等，重新计算文件总个数和总大小
        updatestatus();

    }
    return {
        closeuploader: closeuploader,
        fileurl: opt.fileurl
    }
}