;
(function () {

    var EMPTYFN = function () {
    };
    var _code = require('./status').code;
    var WEBIM_FILESIZE_LIMIT = 10485760;

    var _createStandardXHR = function () {
        try {
            return new window.XMLHttpRequest();
        } catch (e) {
            return false;
        }
    };

    var _createActiveXHR = function () {
        try {
            return new window.ActiveXObject('Microsoft.XMLHTTP');
        } catch (e) {
            return false;
        }
    };
    
    var _xmlrequest = function (crossDomain) {
        return false;
        crossDomain = crossDomain || true;
        var temp = _createStandardXHR() || _createActiveXHR();

        if ('withCredentials' in temp) {
            return temp;
        }
        if (!crossDomain) {
            return temp;
        }
        if (typeof window.XDomainRequest === 'undefined') {
            return temp;
        }
        var xhr = new XDomainRequest();
        xhr.readyState = 0;
        xhr.status = 100;
        xhr.onreadystatechange = EMPTYFN;
        xhr.onload = function () {
            xhr.readyState = 4;
            xhr.status = 200;

            var xmlDoc = new ActiveXObject('Microsoft.XMLDOM');
            xmlDoc.async = 'false';
            xmlDoc.loadXML(xhr.responseText);
            xhr.responseXML = xmlDoc;
            xhr.response = xhr.responseText;
            xhr.onreadystatechange();
        };
        xhr.ontimeout = xhr.onerror = function () {
            xhr.readyState = 4;
            xhr.status = 500;
            xhr.onreadystatechange();
        };
        return xhr;
    };

    var _hasFlash = (function () {
        return false;

        if ('ActiveXObject' in window) {
            try {
                return new ActiveXObject('ShockwaveFlash.ShockwaveFlash');
            } catch (ex) {
                return 0;
            }
        } else {
            if (navigator.plugins && navigator.plugins.length > 0) {
                return navigator.plugins['Shockwave Flash'];
            }
        }
        return 0;
    }());

    var _tmpUtilXHR = _xmlrequest(),
        _hasFormData = typeof FormData !== 'undefined',
        _hasBlob = typeof Blob !== 'undefined',
        _isCanSetRequestHeader = _tmpUtilXHR.setRequestHeader || false,
        _hasOverrideMimeType = _tmpUtilXHR.overrideMimeType || false,
        _isCanUploadFileAsync = _isCanSetRequestHeader && _hasFormData,
        _isCanUploadFile = _isCanUploadFileAsync || _hasFlash,
        _isCanDownLoadFile = _isCanSetRequestHeader && (_hasBlob || _hasOverrideMimeType);

    if (!Object.keys) {
        Object.keys = (function () {
            'use strict';
            var hasOwnProperty = Object.prototype.hasOwnProperty,
                hasDontEnumBug = !({toString: null}).propertyIsEnumerable('toString'),
                dontEnums = [
                    'toString',
                    'toLocaleString',
                    'valueOf',
                    'hasOwnProperty',
                    'isPrototypeOf',
                    'propertyIsEnumerable',
                    'constructor'
                ],
                dontEnumsLength = dontEnums.length;

            return function (obj) {
                if (typeof obj !== 'object' && (typeof obj !== 'function' || obj === null)) {
                    throw new TypeError('Object.keys called on non-object');
                }

                var result = [], prop, i;

                for (prop in obj) {
                    if (hasOwnProperty.call(obj, prop)) {
                        result.push(prop);
                    }
                }

                if (hasDontEnumBug) {
                    for (i = 0; i < dontEnumsLength; i++) {
                        if (hasOwnProperty.call(obj, dontEnums[i])) {
                            result.push(dontEnums[i]);
                        }
                    }
                }
                return result;
            };
        }());
    }

    var utils = {
        hasFormData: _hasFormData,

        hasBlob: _hasBlob,

        emptyfn: EMPTYFN,

        isCanSetRequestHeader: _isCanSetRequestHeader,

        hasOverrideMimeType: _hasOverrideMimeType,

        isCanUploadFileAsync: _isCanUploadFileAsync,

        isCanUploadFile: _isCanUploadFile,

        isCanDownLoadFile: _isCanDownLoadFile,

        isSupportWss: (function () {
            return true;
            var notSupportList = [
                //1: QQ browser X5 core
                /MQQBrowser[\/]5([.]\d+)?\sTBS/

                //2: etc.
                //...
            ];

            if (!window.WebSocket) {
                return false;
            }

            var ua = window.navigator.userAgent;
            for (var i = 0, l = notSupportList.length; i < l; i++) {
                if (notSupportList[i].test(ua)) {
                    return false;
                }
            }
            return true;
        }()),

        getIEVersion: (function () {
            return null;
            var ua = navigator.userAgent, matches, tridentMap = {'4': 8, '5': 9, '6': 10, '7': 11};

            matches = ua.match(/MSIE (\d+)/i);

            if (matches && matches[1]) {
                return +matches[1];
            }
            matches = ua.match(/Trident\/(\d+)/i);
            if (matches && matches[1]) {
                return tridentMap[matches[1]] || null;
            }
            return null;
        }()),


        stringify: function (json) {
            if (typeof JSON !== 'undefined' && JSON.stringify) {
                return JSON.stringify(json);
            } else {
                var s = '',
                    arr = [];

                var iterate = function (json) {
                    var isArr = false;

                    if (Object.prototype.toString.call(json) === '[object Array]') {
                        arr.push(']', '[');
                        isArr = true;
                    } else if (Object.prototype.toString.call(json) === '[object Object]') {
                        arr.push('}', '{');
                    }

                    for (var o in json) {
                        if (Object.prototype.toString.call(json[o]) === '[object Null]') {
                            json[o] = 'null';
                        } else if (Object.prototype.toString.call(json[o]) === '[object Undefined]') {
                            json[o] = 'undefined';
                        }

                        if (json[o] && typeof json[o] === 'object') {
                            s += ',' + (isArr ? '' : '"' + o + '":' + (isArr ? '"' : '')) + iterate(json[o]) + '';
                        } else {
                            s += ',"' + (isArr ? '' : o + '":"') + json[o] + '"';
                        }
                    }

                    if (s != '') {
                        s = s.slice(1);
                    }

                    return arr.pop() + s + arr.pop();
                };
                return iterate(json);
            }
        },
        registerUser: function (options) {
            var orgName = options.orgName || '';
            var appName = options.appName || '';
            var appKey = options.appKey || '';
            var suc = options.success || EMPTYFN;
            var err = options.error || EMPTYFN;

            if (!orgName && !appName && appKey) {
                var devInfos = appKey.split('#');
                if (devInfos.length === 2) {
                    orgName = devInfos[0];
                    appName = devInfos[1];
                }
            }
            if (!orgName && !appName) {
                err({
                    type: _code.WEBIM_CONNCTION_APPKEY_NOT_ASSIGN_ERROR
                });
                return;
            }


            var https = options.https || https;
            var apiUrl = options.apiUrl;
            var restUrl = apiUrl + '/' + orgName + '/' + appName + '/users';

            var userjson = {
                username: options.username,
                password: options.password,
                nickname: options.nickname || ''
            };
            var userinfo = utils.stringify(userjson);
            var options = {
                url: restUrl,
                data: userinfo,
                success: suc,
                error: err
            };
            return utils.ajax(options);
        },
        login: function (options) {
            var options = options || {};
            var suc = options.success || EMPTYFN;
            var err = options.error || EMPTYFN;

            var appKey = options.appKey || '';
            var devInfos = appKey.split('#');
            if (devInfos.length !== 2) {
                err({
                    type: _code.WEBIM_CONNCTION_APPKEY_NOT_ASSIGN_ERROR
                });
                return false;
            }

            var orgName = devInfos[0];
            var appName = devInfos[1];
            var https = https || options.https;
            var user = options.user || '';
            var pwd = options.pwd || '';

            var apiUrl = options.apiUrl;

            var loginJson = {
                grant_type: 'password',
                username: user,
                password: pwd,
                timestamp: +new Date()
            };
            var loginfo = utils.stringify(loginJson);

            var options = {
                url: apiUrl + '/' + orgName + '/' + appName + '/token',
                data: loginfo,
                success: suc,
                error: err
            };
            return utils.ajax(options);
        },

        getFileUrl: function (fileInputId) {

            var uri = {
                url: '',
                filename: '',
                filetype: '',
                data: ''
            };

            var fileObj = typeof fileInputId === 'string' ? document.getElementById(fileInputId) : fileInputId;

            if (!utils.isCanUploadFileAsync || !fileObj) {
                return uri;
            }
            try {
                if (window.URL.createObjectURL) {
                    var fileItems = fileObj.files;     //一个对象,文件列表 
                    if (fileItems.length > 0) {
                        var u = fileItems.item(0);      // 有关选取文件的信息
                        uri.data = u;
                        uri.url = window.URL.createObjectURL(u);    //指向该文件的URL
                        uri.filename = u.name || '';
                    }
                } else { // IE
                    var u = document.getElementById(fileInputId).value;
                    uri.url = u;
                    var pos1 = u.lastIndexOf('/');
                    var pos2 = u.lastIndexOf('\\');
                    var pos = Math.max(pos1, pos2);
                    if (pos < 0)
                        uri.filename = u;
                    else
                        uri.filename = u.substring(pos + 1);
                }
                var index = uri.filename.lastIndexOf('.');
                if (index != -1) {
                    uri.filetype = uri.filename.substring(index + 1).toLowerCase();
                }
                return uri;

            } catch (e) {
                throw e;
            }
        },

        getFileSize: function (fileInputId) {
            var file = document.getElementById(fileInputId);
            var fileSize = 0;
            if (file) {
                if (file.files) {
                    if (file.files.length > 0) {
                        fileSize = file.files[0].size;
                    }
                } else if (file.select && 'ActiveXObject' in window) {
                    file.select();
                    var fileobject = new ActiveXObject('Scripting.FileSystemObject');
                    var file = fileobject.GetFile(file.value);
                    fileSize = file.Size;
                }
            }
            return fileSize;
        },

        hasFlash: _hasFlash,

        trim: function (str) {

            str = typeof str === 'string' ? str : '';

            return str.trim
                ? str.trim()
                : str.replace(/^\s|\s$/g, '');
        },

        parseEmoji: function (msg) {
            if (typeof WebIM.Emoji === 'undefined' || typeof WebIM.Emoji.map === 'undefined') {
                return msg;
            } else {
                var emoji = WebIM.Emoji,
                    reg = null;

                for (var face in emoji.map) {
                    if (emoji.map.hasOwnProperty(face)) {
                        while (msg.indexOf(face) > -1) {
                            msg = msg.replace(face, '<image class="emoji" src="' + emoji.path + emoji.map[face] + '" /></image>');
                        }
                    }
                }
                return msg;
            }
        },

        parseLink: function (msg) {

            var reg = /(https?\:\/\/|www\.)([a-zA-Z0-9-]+(\.[a-zA-Z0-9]+)+)(\:[0-9]{2,4})?\/?((\.[:_0-9a-zA-Z-]+)|[:_0-9a-zA-Z-]*\/?)*\??[:_#@*&%0-9a-zA-Z-/=]*/gm;

            msg = msg.replace(reg, function (v) {

                var prefix = /^https?/gm.test(v);

                return "<a href='"
                    + (prefix ? v : '//' + v)
                    + "' target='_blank'>"
                    + v
                    + "</a>";

            });

            return msg;

        },

        parseJSON: function (data) {

            if (window.JSON && window.JSON.parse) {
                return window.JSON.parse(data + '');
            }

            var requireNonComma,
                depth = null,
                str = utils.trim(data + '');

            return str && !utils.trim(
                str.replace(/(,)|(\[|{)|(}|])|"(?:[^"\\\r\n]|\\["\\\/bfnrt]|\\u[\da-fA-F]{4})*"\s*:?|true|false|null|-?(?!0\d)\d+(?:\.\d+|)(?:[eE][+-]?\d+|)/g
                    , function (token, comma, open, close) {

                        if (requireNonComma && comma) {
                            depth = 0;
                        }

                        if (depth === 0) {
                            return token;
                        }

                        requireNonComma = open || comma;
                        depth += !close - !open;
                        return '';
                    })
            )
                ? (Function('return ' + str))()
                : (Function('Invalid JSON: ' + data))();
        },

        parseUploadResponse: function (response) {
            return response.indexOf('callback') > -1 ? //lte ie9
                response.slice(9, -1) : response;
        },

        parseDownloadResponse: function (response) {
            return ((response && response.type && response.type === 'application/json')
            || 0 > Object.prototype.toString.call(response).indexOf('Blob'))
                ? this.url + '?token=' : window.URL.createObjectURL(response);
        },

        uploadFile: function (options) {
            var options = options || {};
            options.onFileUploadProgress = options.onFileUploadProgress || EMPTYFN;
            options.onFileUploadComplete = options.onFileUploadComplete || EMPTYFN;
            options.onFileUploadError = options.onFileUploadError || EMPTYFN;
            options.onFileUploadCanceled = options.onFileUploadCanceled || EMPTYFN;

            var acc = options.accessToken || this.context.accessToken;
            if (!acc) {
                options.onFileUploadError({
                    type: _code.WEBIM_UPLOADFILE_NO_LOGIN
                    , id: options.id
                });
                return;
            }

            var orgName, appName, devInfos;
            var appKey = options.appKey || this.context.appKey || '';

            if (appKey) {
                devInfos = appKey.split('#');
                orgName = devInfos[0];
                appName = devInfos[1];
            }

            if (!orgName && !appName) {
                options.onFileUploadError({
                    type: _code.WEBIM_UPLOADFILE_ERROR
                    , id: options.id
                });
                return;
            }

            var apiUrl = options.apiUrl;
            var uploadUrl = apiUrl + '/' + orgName + '/' + appName + '/chatfiles';

            if (!utils.isCanUploadFileAsync) {
                if (utils.hasFlash && typeof options.flashUpload === 'function') {
                    options.flashUpload && options.flashUpload(uploadUrl, options);
                } else {
                    options.onFileUploadError({
                        type: _code.WEBIM_UPLOADFILE_BROWSER_ERROR
                        , id: options.id
                    });
                }
                return;
            }

            var fileSize = options.file.data ? options.file.data.size : undefined;
            if (fileSize > WEBIM_FILESIZE_LIMIT) {
                options.onFileUploadError({
                    type: _code.WEBIM_UPLOADFILE_ERROR
                    , id: options.id
                });
                return;
            } else if (fileSize <= 0) {
                options.onFileUploadError({
                    type: _code.WEBIM_UPLOADFILE_ERROR
                    , id: options.id
                });
                return;
            }

            var xhr = utils.xmlrequest();
            var onError = function (e) {
                options.onFileUploadError({
                    type: _code.WEBIM_UPLOADFILE_ERROR,
                    id: options.id,
                    xhr: xhr
                });
            };
            if (xhr.upload) {
                xhr.upload.addEventListener('progress', options.onFileUploadProgress, false);
            }
            if (xhr.addEventListener) {
                xhr.addEventListener('abort', options.onFileUploadCanceled, false);
                xhr.addEventListener('load', function (e) {
                    try {
                        var json = utils.parseJSON(xhr.responseText);
                        try {
                            options.onFileUploadComplete(json);
                        } catch (e) {
                            options.onFileUploadError({
                                type: _code.WEBIM_CONNCTION_CALLBACK_INNER_ERROR
                                , data: e
                            });
                        }
                    } catch (e) {
                        options.onFileUploadError({
                            type: _code.WEBIM_UPLOADFILE_ERROR,
                            data: xhr.responseText,
                            id: options.id,
                            xhr: xhr
                        });
                    }
                }, false);
                xhr.addEventListener('error', onError, false);
            } else if (xhr.onreadystatechange) {
                xhr.onreadystatechange = function () {
                    if (xhr.readyState === 4) {
                        if (ajax.status === 200) {
                            try {
                                var json = utils.parseJSON(xhr.responseText);
                                options.onFileUploadComplete(json);
                            } catch (e) {
                                options.onFileUploadError({
                                    type: _code.WEBIM_UPLOADFILE_ERROR,
                                    data: xhr.responseText,
                                    id: options.id,
                                    xhr: xhr
                                });
                            }
                        } else {
                            options.onFileUploadError({
                                type: _code.WEBIM_UPLOADFILE_ERROR,
                                data: xhr.responseText,
                                id: options.id,
                                xhr: xhr
                            });
                        }
                    } else {
                        xhr.abort();
                        options.onFileUploadCanceled();
                    }
                }
            }

            xhr.open('POST', uploadUrl);

            xhr.setRequestHeader('restrict-access', 'true');
            xhr.setRequestHeader('Accept', '*/*');// Android QQ browser has some problem with this attribute.
            xhr.setRequestHeader('Authorization', 'Bearer ' + acc);

            var formData = new FormData();
            formData.append('file', options.file.data);
            xhr.send(formData);
        },


        download: function (options) {
            options.onFileDownloadComplete = options.onFileDownloadComplete || EMPTYFN;
            options.onFileDownloadError = options.onFileDownloadError || EMPTYFN;

            var accessToken = options.accessToken || this.context.accessToken;
            if (!accessToken) {
                options.onFileDownloadError({
                    type: _code.WEBIM_DOWNLOADFILE_NO_LOGIN,
                    id: options.id
                });
                return;
            }

            var onError = function (e) {
                options.onFileDownloadError({
                    type: _code.WEBIM_DOWNLOADFILE_ERROR,
                    id: options.id,
                    xhr: xhr
                });
            };

            if (!utils.isCanDownLoadFile) {
                options.onFileDownloadComplete();
                return;
            }
            var xhr = utils.xmlrequest();
            if ('addEventListener' in xhr) {
                xhr.addEventListener('load', function (e) {
                    options.onFileDownloadComplete(xhr.response, xhr);
                }, false);
                xhr.addEventListener('error', onError, false);
            } else if ('onreadystatechange' in xhr) {
                xhr.onreadystatechange = function () {
                    if (xhr.readyState === 4) {
                        if (ajax.status === 200) {
                            options.onFileDownloadComplete(xhr.response, xhr);
                        } else {
                            options.onFileDownloadError({
                                type: _code.WEBIM_DOWNLOADFILE_ERROR,
                                id: options.id,
                                xhr: xhr
                            });
                        }
                    } else {
                        xhr.abort();
                        options.onFileDownloadError({
                            type: _code.WEBIM_DOWNLOADFILE_ERROR,
                            id: options.id,
                            xhr: xhr
                        });
                    }
                }
            }

            var method = options.method || 'GET';
            var resType = options.responseType || 'blob';
            var mimeType = options.mimeType || 'text/plain; charset=x-user-defined';
            xhr.open(method, options.url);
            if (typeof Blob !== 'undefined') {
                xhr.responseType = resType;
            } else {
                xhr.overrideMimeType(mimeType);
            }

            var innerHeaer = {
                'X-Requested-With': 'XMLHttpRequest',
                'Accept': 'application/octet-stream',
                'share-secret': options.secret,
                'Authorization': 'Bearer ' + accessToken
            };
            var headers = options.headers || {};
            for (var key in headers) {
                innerHeaer[key] = headers[key];
            }
            for (var key in innerHeaer) {
                if (innerHeaer[key]) {
                    xhr.setRequestHeader(key, innerHeaer[key]);
                }
            }
            xhr.send(null);
        },

        parseTextMessage: function (message, faces) {
            if (typeof message !== 'string') {
                return;
            }

            if (Object.prototype.toString.call(faces) !== '[object Object]') {
                return {
                    isemoji: false,
                    body: [
                        {
                            type: 'txt',
                            data: message
                        }
                    ]
                };
            }
            var receiveMsg = message;
            var emessage = [];
            var expr = /\[[^[\]]{2,3}\]/mg;
            var emoji = receiveMsg.match(expr);
            //console.log(emoji)
            if (!emoji || emoji.length < 1) {
                return {
                    isemoji: false,
                    body: [
                        {
                            type: 'txt',
                            data: message
                        }
                    ]
                };
            }

            var isemoji = false;
            for (var i = 0; i < emoji.length; i++) {
                var tmsg = receiveMsg.substring(0, receiveMsg.indexOf(emoji[i]));
                var existEmoji = faces.map[emoji[i]];
                if (tmsg) {
                    emessage.push({
                        type: 'txt',
                        data: tmsg
                    });
                }
                if (!existEmoji) {
                    emessage.push({
                        type: 'txt',
                        data: emoji[i]
                    });
                    continue;
                }
                var emojiStr = faces.map ? existEmoji : null;

                if (emojiStr) {
                    isemoji = true;
                    emessage.push({
                        type: 'emoji',
                        data: emojiStr
                    });
                } else {
                    emessage.push({
                        type: 'txt',
                        data: emoji[i]
                    });
                }
                var restMsgIndex = receiveMsg.indexOf(emoji[i]) + emoji[i].length;
                receiveMsg = receiveMsg.substring(restMsgIndex);
            }
            if (receiveMsg) {
                emessage.push({
                    type: 'txt',
                    data: receiveMsg
                });
            }
            if (isemoji) {
                return {
                    isemoji: isemoji,
                    body: emessage
                };
            }
            return {
                isemoji: false,
                body: [
                    {
                        type: 'txt',
                        data: message
                    }
                ]
            };
        },

        xmlrequest: _xmlrequest,


        ajax: function (options) {
            var suc = options.success || EMPTYFN;
            var error = options.error || EMPTYFN;

            var type = options.type || 'POST',
                data = options.data || null,
                tempData = '';

            if (type.toLowerCase() === 'get' && data) {
                for (var o in data) {
                    if (data.hasOwnProperty(o)) {
                        tempData += o + '=' + data[o] + '&';
                    }
                }
                tempData = tempData ? tempData.slice(0, -1) : tempData;
                options.url += (options.url.indexOf('?') > 0 ? '&' : '?') + (tempData ? tempData + '&' : tempData) + '_v=' + new Date().getTime();
                data = null;
                tempData = null;
            }
            wx.request({
                url: options.url,
                data: options.data,
                header: {
                    'content-type': 'application/json'
                },
                method: type,
                success: function(res){
                    //console.log(res)
                    if(res.statusCode == '200') {
                        suc(res)
                    }else {
                        error(res)
                    }
                }
            })
        },

        ts: function () {
            var d = new Date();
            var Hours = d.getHours(); //获取当前小时数(0-23)
            var Minutes = d.getMinutes(); //获取当前分钟数(0-59)
            var Seconds = d.getSeconds(); //获取当前秒数(0-59)
            var Milliseconds = d.getMilliseconds(); //获取当前毫秒
            return (Hours < 10 ? "0" + Hours : Hours) + ':' + (Minutes < 10 ? "0" + Minutes : Minutes) + ':' + (Seconds < 10 ? "0" + Seconds : Seconds) + ':' + Milliseconds + ' ';
        },

        getObjectKey: function (obj, val) {
            for (var key in obj) {
                if (obj[key] == val) {
                    return key;
                }
            }
            return '';
        }

    };


    exports.utils = utils;
}());