if (!Function.prototype.bind) {
    Function.prototype.bind = function () {
        var fn = this, args = Array.prototype.slice.call(arguments), object = args.shift();
        return function () {
            return fn.apply(object, args.concat(Array.prototype.slice.call(arguments)));
        }
    }
}

//写cookies 
function setCookie(name, value) {
    var days = 1;
    var exp = new Date();
    exp.setTime(exp.getTime() + days * 24 * 60 * 60 * 1000);
    document.cookie = name + "=" + escape(value) + ";path=/";
}

//读取cookies 
function readCookie(name) {
    var arr, reg = new RegExp("(^| )" + name + "=([^;]*)(;|$)");
    if (arr = document.cookie.match(reg)) {
        return unescape(arr[2]);
    } else {
        return null;
    }

}

//删除cookies 
function delCookie(name) {
    var cval = readCookie(name);
    if (cval != null) {
        document.cookie = name + "=;path=/";
    }
}
var _$encode = function (_map, _content) {
    _content = '' + _content;
    if (!_map || !_content) {
        return _content || '';
    }
    return _content.replace(_map.r, function ($1) {
        var _result = _map[!_map.i ? $1.toLowerCase() : $1];
        return _result != null ? _result : $1;
    });
};
var _$escape = (function () {
    var _reg = /<br\/?>$/,
        _map = {
            r: /\<|\>|\&|\r|\n|\s|\'|\"/g,
            '<': '&lt;', '>': '&gt;', '&': '&amp;', ' ': '&nbsp;',
            '"': '&quot;', "'": '&#39;', '\n': '<br/>', '\r': ''
        };
    return function (_content) {
        _content = _$encode(_map, _content);
        return _content.replace(_reg, '<br/><br/>');
    };
})();
/* 格式化日期 */
Date.prototype.Format = function (fmt) {
    var o = {
        "M+": this.getMonth() + 1,  // 月份
        "d+": this.getDate(),		// 日
        "h+": this.getHours(),		// 小时
        "m+": this.getMinutes(),	// 分
        "s+": this.getSeconds(),	// 秒
        "q+": Math.floor((this.getMonth() + 3) / 3), // 季度
        "S": this.getMilliseconds() // 毫秒
    };
    if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
    for (var k in o)
        if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
    return fmt;
}

//数组功能扩展
Array.prototype.each = function (fn) {
    fn = fn || Function.K;
    var a = [];
    var args = Array.prototype.slice.call(arguments, 1);
    for (var i = 0; i < this.length; i++) {
        var res = fn.apply(this, [this[i], i].concat(args));
        if (res != null) a.push(res);
    }
    return a;
};

//数组是否包含指定元素
Array.prototype.contains = function (suArr) {
    for (var i = 0; i < this.length; i++) {
        if (this[i] == suArr) {
            return true;
        }
    }
    return false;
};
//不重复元素构成的数组
Array.prototype.uniquelize = function () {
    var ra = new Array();
    for (var i = 0; i < this.length; i++) {
        if (!ra.contains(this[i])) {
            ra.push(this[i]);
        }
    }
    return ra;
};
//两个数组的补集
Array.complement = function (a, b) {
    return Array.minus(Array.union(a, b), Array.intersect(a, b));
};
//两个数组的交集
Array.intersect = function (a, b) {
    return a.uniquelize().each(function (o) { return b.contains(o) ? o : null });
};
//两个数组的差集
Array.minus = function (a, b) {
    return a.uniquelize().each(function (o) { return b.contains(o) ? null : o });
};
//两个数组并集
Array.union = function (a, b) {
    return a.concat(b).uniquelize();
};

/**
* 构造第一条消息，显示在最近联系人昵称的下面(移到UI组件去了)
* @param msg：消息对象
*/
function buildSessionMsg(msg) {
    var text = (msg.scene != 'p2p' ? ((msg.from === userUID) ? "你" : getNick(msg.from)) + ":" : ""), type = msg.type;
    if (!/text|image|file|audio|video|geo|custom|tip|notification/i.test(type)) return '';
    switch (type) {
        case 'text':
            text += _$escape(msg.text);
            text = buildEmoji(text);
            break;
        case 'image':
            text += '[图片]';
            break;
        case 'file':
            if (!/exe|bat/i.test(msg.file.ext)) {
                text += '[文件]';
            } else {
                text += '[非法文件，已被本站拦截]';
            }
            break;
        case 'audio':
            text += '[语音]';
            break;
        case 'video':
            text += '[视频]';
            break;
        case 'geo':
            text += '[位置]';
            break;
        case 'tip':
            text = '[提醒消息]';
            break;
        case 'robot':
            text = '[机器人消息]';
            break;
        case 'custom':
            var content = JSON.parse(msg.content);
            if (content.type === 1) {
                text += '[猜拳]';
            } else if (content.type === 2) {
                text += '[阅后即焚]';
            } else if (content.type === 3) {
                text += '[贴图]';
            } else if (content.type === 4) {
                text += '[白板]';
            } else {
                text += '[自定义消息]';
            }
            break;
        case 'notification':
            text = '[' + transNotification(msg) + ']';
            break;
        default:
            text += '[未知消息类型]';
            break;
    }
    if (msg.status === "fail") {
        text = '<i class="icon icon-error"></i>' + text;
    }
    return text;
}

/**
 * 会话列表消息
 * @param  {object} msg 消息
 * @return {string} str
 */
function getMessage(msg) {	
    var str = ''
    var url = msg.file ? _$escape(msg.file.url) : ''
    var extStr = ''
    if (url) {
        url = nim.viewImageSync({
            url: url
        })
    }
    var sentStr = (msg.flow === 'in') ? "收到" : "发送";
    switch (msg.type) {
        case 'text':
            var re = /(http:\/\/[\w.\/]+)(?![^<]+>)/gi; // 识别链接
            str = _$escape(msg.text);
            str = str.replace(re, "<a href='$1' target='_blank'>$1</a>");

            str = buildEmoji(str);
            str = "<div class='f-maxWid'>" + str + "</div>"
            break;
        case 'image':
            if (msg.status === -1) {
                str = '<p>[' + msg.message.message + ']</p>';
            } else {
                // msg.file.url = _$escape(msg.file.url);
                // msg.file.url = nim.viewImageSync({
                //     url: msg.file.url
                // })
                // str = '<a href="' + msg.file.url + '?imageView" target="_blank"><img onload="loadImg()" data-src="' + msg.file.url + '" src="' + msg.file.url + '?imageView&thumbnail=200x0&quality=85"/></a>';
                str = '<a href="' + url + '?imageView" target="_blank"><img onload="loadImg()" data-src="' + url + '" src="' + url + '?imageView&thumbnail=200x0&quality=85"/></a>';
            }
            break;
        case 'file':
            if (msg.status === -1) {
                str = '<p>[' + msg.message.message + ']</p>';
            } else {
                if (/png|jpg|bmp|jpeg|gif/i.test(msg.file.ext)) {
                    // msg.file.url = _$escape(msg.file.url);
                    // msg.file.url = nim.viewImageSync({
                    //     url: msg.file.url
                    // })
                    // str = '<a class="f-maxWid" href="' + msg.file.url + '?imageView" target="_blank"><img data-src="' + msg.file.url + '" src="' + msg.file.url + '?imageView&thumbnail=200x0&quality=85"/></a>';
                    str = '<a class="f-maxWid" href="' + url + '?imageView" target="_blank"><img data-src="' + url + '" src="' + url + '?imageView&thumbnail=200x0&quality=85"/></a>';
                } else if (!/exe|bat/i.test(msg.file.ext)) {
                    url += msg.file ? '?download=' + encodeURI(_$escape(msg.file.name)) : '';
                    str = '<a href="' + url + '" target="_blank" class="download-file f-maxWid"><span class="icon icon-file2"></span>' + _$escape(msg.file.name) + '</a>';
                } else {
                    str = '<p>[非法文件，已被本站拦截]</p>';
                }
            }
            break;
        case 'tip':
            str = msg.tip;
            break;
        case 'video':
            // str = '<a href="' + url + '" target="_blank" class="download-file"><span class="icon icon-file2"></span>[你收到了一条视频消息]</a>';
            str = '<video src= "' + url + '" controls>您的浏览器不支持 video 标签。</video>';
            break;
        case 'audio':
            if (!!window.Audio) {
                if (msg.from === userUID && msg.from !== msg.to) {
                    str = '<div class="u-audio j-mbox right"> <a href="javascript:;" class="j-play playAudio" data-dur="' + msg.file.dur + '"  data-src="' + url + '">点击播放</a><b class="j-duration">' + Math.floor((msg.file.dur) / 1000) + '"</b><span class="u-icn u-icn-play" title="播放音频"></span></div>'
                } else {
                    str = '<div class="u-audio j-mbox left"> <a href="javascript:;" class="j-play playAudio" data-dur="' + msg.file.dur + '"  data-src="' + url + '">点击播放</a><b class="j-duration">' + Math.floor((msg.file.dur) / 1000) + '"</b><span class="u-icn u-icn-play" title="播放音频"></span></div>'
                }
            } else {
                str = '<a href="' + url + '" target="_blank" class="download-file"><span class="icon icon-file2"></span>[' + sentStr + '一条语音消息]</a>';
            }
            break;
        case 'geo':
            str = sentStr + '一条[地理位置]消息';
            break;
        case 'custom':
            var content = JSON.parse(msg.content);
            if (content.type === 1) {
                str = sentStr + '一条[猜拳]消息,请到手机或电脑客户端查看';
            } else if (content.type === 2) {
                str = sentStr + '一条[阅后即焚]消息,请到手机或电脑客户端查看';
            } else if (content.type === 3) {
                var catalog = _$escape(content.data.catalog),
                    chartvar = _$escape(content.data.chartlet);
                str = '<img class="chartlet" onload="loadImg()" src="./images/' + catalog + '/' + chartvar + '.png">';
            } else if (content.type == 4) {
                str = msg.fromNick + '发起了[白板互动]';
            } else {
                str = sentStr + '一条[自定义]消息，请到手机或电脑客户端查看';
            }
            break;
        case 'robot':
            str = sentStr + '一条[机器人]消息,请到手机或电脑客户端查看';
            break
        default:
            if (msg && msg.attach && msg.attach.netcallType !== undefined) {
                var netcallType = msg.attach.netcallType;
                var netcallTypeText = netcallType === Netcall.NETCALL_TYPE_VIDEO ? '视频' : '音频';
                if (msg.attach && msg.attach.type === "netcallBill") {
                    str = '通话' + (msg.flow === "in" ? "接听" : "拨打") + "时长 " + getNetcallDurationText(msg.attach.duration);
                } else if (msg.attach && msg.attach.type === "netcallMiss") {
                    str = "未接听";
                }
            } else {
                str = sentStr + '一条[未知消息类型]消息';
            }

            break;
    }
    return str;
}
/**
 * 时间戳转化为日期（用于消息列表）
 * @return {string} 转化后的日期
 */
var transTime = (function () {
    var getDayPoint = function (time) {
        time.setMinutes(0);
        time.setSeconds(0);
        time.setMilliseconds(0);
        time.setHours(0);
        var today = time.getTime();
        time.setMonth(1);
        time.setDate(1);
        var yearDay = time.getTime();
        return [today, yearDay];
    }
    return function (time) {
        var check = getDayPoint(new Date());
        if (time >= check[0]) {
            return dateFormat(time, "HH:mm")
        } else if (time < check[0] && time >= check[1]) {
            return dateFormat(time, "MM-dd HH:mm")
        } else {
            return dateFormat(time, "yyyy-MM-dd HH:mm")
        }
    }
})();
/**
 * 时间戳转化为日期(用于左边会话面板)
 * @return {string} 转化后的日期
 */
var transTime2 = (function () {
    var getDayPoint = function (time) {
        time.setMinutes(0);
        time.setSeconds(0);
        time.setMilliseconds(0);
        time.setHours(0);
        var today = time.getTime();
        time.setMonth(1);
        time.setDate(1);
        var yearDay = time.getTime();
        return [today, yearDay];
    }
    return function (time) {
        var check = getDayPoint(new Date());
        if (time >= check[0]) {
            return dateFormat(time, "HH:mm")
        } else if (time >= check[0] - 60 * 1000 * 60 * 24) {
            return "昨天";
        } else if (time >= (check[0] - 2 * 60 * 1000 * 60 * 24)) {
            return "前天";
        } else if (time >= (check[0] - 7 * 60 * 1000 * 60 * 24)) {
            return "星期" + dateFormat(time, "w");
        } else if (time >= check[1]) {
            return dateFormat(time, "MM-dd")
        } else {
            return dateFormat(time, "yyyy-MM-dd")
        }
    }
})();

/**
* 根据消息的发送人，构造发送方，注意：发送人有可能是自己
* @param msg：消息对象
*/
function buildSender(msg) {
    var sender = '';
    if (msg.from === msg.to) {
        if (msg.fromClientType === "Web") {
            sender = 'me';
        } else {
            sender = 'you';
        }
    } else {
        if (msg.flow === 'in') {
            sender = 'you'
        } else if (msg.flow === 'out') {
            sender = 'me'
        }
    }
    return sender;
}
/**
 * 日期格式化
 * @return string
 */
var dateFormat = (function () {
    var _map = { i: !0, r: /\byyyy|yy|MM|cM|eM|M|dd|d|HH|H|mm|ms|ss|m|s|w|ct|et\b/g },
        _12cc = ['上午', '下午'],
        _12ec = ['A.M.', 'P.M.'],
        _week = ['日', '一', '二', '三', '四', '五', '六'],
        _cmon = ['一', '二', '三', '四', '五', '六', '七', '八', '九', '十', '十一', '十二'],
        _emon = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sept', 'Oct', 'Nov', 'Dec'];
    var _fmtnmb = function (_number) {
        _number = parseInt(_number) || 0;
        return (_number < 10 ? '0' : '') + _number;
    };
    var _fmtclc = function (_hour) {
        return _hour < 12 ? 0 : 1;
    };
    return function (_time, _format, _12time) {
        if (!_time || !_format)
            return '';
        _time = new Date(_time);
        _map.yyyy = _time.getFullYear();
        _map.yy = ('' + _map.yyyy).substr(2);
        _map.M = _time.getMonth() + 1;
        _map.MM = _fmtnmb(_map.M);
        _map.eM = _emon[_map.M - 1];
        _map.cM = _cmon[_map.M - 1];
        _map.d = _time.getDate();
        _map.dd = _fmtnmb(_map.d);
        _map.H = _time.getHours();
        _map.HH = _fmtnmb(_map.H);
        _map.m = _time.getMinutes();
        _map.mm = _fmtnmb(_map.m);
        _map.s = _time.getSeconds();
        _map.ss = _fmtnmb(_map.s);
        _map.ms = _time.getMilliseconds();
        _map.w = _week[_time.getDay()];
        var _cc = _fmtclc(_map.H);
        _map.ct = _12cc[_cc];
        _map.et = _12ec[_cc];
        if (!!_12time) {
            _map.H = _map.H % 12;
        }
        return _$encode(_map, _format);
    };
})();

function getNetcallDurationText(allSeconds) {
    var result = "";
    var hours, minutes, seconds;
    if (allSeconds >= 3600) {
        hours = parseInt(allSeconds / 3600);
        result += ("00" + hours).slice(-2) + " : ";
    }
    if (allSeconds >= 60) {
        minutes = parseInt(allSeconds % 3600 / 60);
        result += ("00" + minutes).slice(-2) + " : ";
    } else {
        result += "00 : ";
    }
    seconds = parseInt(allSeconds % 3600 % 60);
    result += ("00" + seconds).slice(-2);
    return result;
};

function transNotification(item) {
    var type = item.attach.type,
        from = (item.from === userUID ? true : false),
        str,
        tName,
        accounts,
        member = [];

    //从消息item拿得到team信息就从那边拿,msg那拿不到就本地拿
    //这冗余代码就是为了处理群通知的文案高级群叫群，讨论组叫讨论组
    var team = item.attach && item.attach.team;
    if (!team) {
        team = yunXin.cache.getTeamMapById(item.target);
    } else {
        if (!team.type) {
            team = yunXin.cache.getTeamMapById(item.target);
        }
    }
    if (team && team.type && team.type === "normal") {
        tName = "讨论组";
    } else if (team) {
        tName = "群";
    } else { // 既不是群，也不是讨论组， p2p 音视频通话相关消息
        var netcallType = item.attach.netcallType;
        var netcallTypeText = netcallType === Netcall.NETCALL_TYPE_VIDEO ? '视频' : '音频';
        switch (type) {
            case 'netcallMiss':
                return '未接听';
                break;
            case 'netcallBill':
                return "通话" + (item.flow === "in" ? "接听" : "拨打") + "时长 " + getNetcallDurationText(item.attach.duration);
                break;
            case 'cancelNetcallBeforeAccept':
                return '无人接听';
                break;
            case 'rejectNetcall':
                return '已拒绝';
                break;
            case 'netcallRejected':
                return '对方已拒绝';
                break;
            default:
                return '';
                break;
        }
    }
    /**--------------------正剧在下面------------------------*/
    switch (type) {
        case 'addTeamMembers':
            accounts = item.attach.accounts;
            for (var i = 0; i < accounts.length; i++) {
                if (accounts[i] === userUID) {
                    member.push("你");
                } else {
                    member.push(getNick(accounts[i]));
                }

            }
            member = member.join(",");
            str = from ? "你将" + member + "加入" + tName : member + "加入" + tName;
            return str;
            break;
        case 'removeTeamMembers':
            accounts = item.attach.accounts;
            for (var i = 0; i < accounts.length; i++) {
                if (accounts[i] === userUID) {
                    member.push("你");
                } else {
                    member.push(getNick(accounts[i]));
                }
            }
            member = member.join(",");
            str = from ? ("你将" + member + "移除" + tName) : (member + "被移除" + tName);
            return str;
            break;
        case 'addTeamManagers':
        case 'removeTeamManagers':
            return '管理员权限发生了变更'
            break
        case 'leaveTeam':
            var member = (item.from === userUID) ? "你" : getNick(item.from);
            str = member + "退出了" + tName;
            return str;
            break;
        case 'updateTeam':
            if (item.attach.team.joinMode) {
                switch (item.attach.team.joinMode) {
                    case "noVerify":
                        str = "群身份验证模式更新为允许任何人加入";
                        break;
                    case "needVerify":
                        str = "群身份验证模式更新为需要验证消息";
                        break;
                    case "rejectAll":
                        str = "群身份验证模式更新为不允许任何人申请加入";
                        break;
                    default:
                        str = '更新群消息';
                        break;
                }
            } else if (item.attach.team.name) {
                var user = (item.from === userUID) ? "你" : getNick(item.from);
                str = user + "更新" + tName + "名称为" + item.attach.team.name;
            } else if (item.attach.team.intro) {
                var user = (item.from === userUID) ? "你" : getNick(item.from);
                str = user + "更新群介绍为" + item.attach.team.intro;
            } else if (item.attach.team.inviteMode) {
                str = item.attach.team.inviteMode === 'manager' ? '邀请他人权限为管理员' : '邀请他人权限为所有人';
            } else if (item.attach.team.beInviteMode) {
                str = item.attach.team.beInviteMode === 'noVerify' ? '被邀请他人权限为不需要验证' : '被邀请他人权限为需要验证';
            } else if (item.attach.team.updateTeamMode) {
                str = item.attach.team.updateTeamMode === 'manager' ? '群资料修改权限为管理员' : '群资料修改权限为所有人';
            } else if (item.attach.team.avatar) {
                var user = (item.from === userUID) ? "你" : getNick(item.from);
                str = user + "更改了群头像";
            } else {
                str = '更新群消息';
            }
            return str;
            break;
        case 'acceptTeamInvite':
            var member,
                admin;
            if (item.from === item.attach.account) {
                member = (item.from === userUID) ? "你" : getNick(item.from);
                str = member ? member : item.from + "加入了群";
            } else {
                admin = (item.attach.account === userUID) ? "你" : getNick(item.attach.account);
                member = (item.from === userUID) ? "你" : getNick(item.from);
                str = member + '接受了' + admin + "的入群邀请";
            }
            return str;
            break;
        case 'passTeamApply':
            var member,
                admin;
            if (item.from === item.attach.account) {
                member = (item.from === userUID) ? "你" : getNick(item.from);
                str = member + "加入了群";
            } else {
                member = (item.attach.account === userUID) ? "你" : getNick(item.attach.account);
                admin = (item.from === userUID) ? "你" : getNick(item.from);
                str = admin + '通过了' + member + "的入群申请";
            }
            return str;
            break;
        case 'dismissTeam':
            var member = (item.from === userUID) ? "你" : getNick(item.from);
            str = member + "解散了群";
            return str;
            break;
        case 'updateTeamMute':
            var account = item.attach.account,
                name;
            if (account === userUID) {
                name = '你';
            } else {
                name = getNick(account);
            }
            str = name + '被' + ((item.from === userUID) ? '你' : '管理员') + (item.attach.mute ? '禁言' : '解除禁言');
            return str;
            break;
        default:
            return '通知消息';
            break;

    }
}

/**
* 移除定位会话圆点
*/

function removeChatVernier(account) {
    if (account == $('li.active').attr('data-account')) {
        $('#chatVernier span').css('top', '-20px');
    }
}

function loadImg() {
    $('#chatContent').scrollTop(99999);
}

function getAvatar(url) {
    if (url) {
        url = nim.viewImageSync({
            url: url
        })
        return url + "?imageView&thumbnail=80x80&quality=85";
    } else {
        return "images/default-icon.png"
    }
}

//或者备注名或者昵称
function getNick(account, cache) {
    cache = cache || yunXin.cache;
    var nick = cache.getFriendAlias(account), tmp = cache.getUserById(account);
    nick = nick || (tmp && tmp.nick ? tmp.nick : account)
    return nick;
}
//拿所有消息中涉及到的账号（为了正确显示昵称=。=）
function getAllAccount(obj) {
    if (!obj) {
        return;
    }
    if (!Array.isArray(obj)) {
        obj = [obj]
    }
    var array = [];
    for (var i = obj.length - 1; i >= 0; i--) {
        array.push(obj[i].from);
        if (obj[i].attach) {
            if (obj[i].attach.accounts) {
                for (var j = obj[i].attach.accounts.length - 1; j >= 0; j--) {
                    array.push(obj[i].attach.accounts[j]);
                };
            }
        }
    };
    return array;
}