// JavaScript Document
document.charset = "utf-8";

$(document).ready(function () {
    var lang = $.cookie("language");
    if(!lang){
        lang = (navigator.language || navigator.browserLanguage).toLowerCase();
    }
    if(lang.indexOf("zh") > -1){
        $("#language").val(lang);
    }else{
        lang = lang.split("-")[0];
        $("#language").val(lang);
    }
    
    execI18n(lang);
    getStreamCount();
    $("#language").change(function(){
        execI18n($(this).val());
    })
});

/**********************************
 功能: 登陆

 对于空密码的设备，UserAuth接口校验存在问题
 ***********************************/
function Login() {
    //用户名为空时提示
    if ($('#username').val().length == 0) {
        $('#username').focus();
        showMsg($.i18n.prop('i18n-username-null'), "loginMSG");
        return false
    }
    
    var cyDate = 'Username=' + $('#username').val() + '&Password=' + $('#password').val();
    $.ajax({
        url: m_Http + m_HostName + ":" + m_HttpPort + "/Security/UserAuth",
        type: "PUT",
        timeout: 15000,
        data: cyDate,
        beforeSend: function (xhr) {
            xhr.setRequestHeader("If-Modified-Since", "0");
        },
        success: function (xmlDoc) {

            var LoginStatus = $(xmlDoc).find('ResponseStatus').eq(0).find('statusCode').eq(0).text();
            if ("0" === LoginStatus) {            //验证成功
                loginLoad();
            }else if(LoginStatus === "-17"){                              //验证失败，用户名或密码错误  statusCode = 17
                showMsg($.i18n.prop('i18n-login-failed'), "loginMSG");
            }else{

            }
        },
        error: function (xhr, textStatus) {
            if ("401" != xhr.status) {
                if ("timeout" == textStatus) {
                    showMsg($.i18n.prop('i18n-link-timeout'), "loginMSG");
                }
                else {
                    showMsg($.i18n.prop('i18n-network-issue'), "loginMSG");
                }
            }
        }
    });

}

/**********************************
 功能: 重置
 ***********************************/
function Reset() {
    $("#username").val("admin");
    $("#password").val("");
    $("#password").focus();
}

/*************************************************
 Function:     loginLoad
 Description:  初始化登陆数据
 **************************************************/
function loginLoad() {
    $.ajax({
        url: m_Http + m_HostName + ":" + m_HttpPort + "/Network/Port",
        type: "GET",
        username: $('#username').val(),
        password: $('#password').val(),
        timeout: 15000,
        beforeSend: function (xhr) {
            xhr.setRequestHeader("If-Modified-Since", "0");
            xhr.setRequestHeader("Cache-Control:no-cache", "must-revalidate");
            xhr.setRequestHeader("keep-alive", "timeout=0, max=1000");
        },
        success: function (xmlDoc) {
            m_cyUserPwdValue = Base64.encode($('#username').val() + ":" + $('#password').val());
            $.cookie('userInfo', m_cyUserPwdValue);
            $.cookie('stream', $("#streamList").val());
            $.cookie('language',$("#language").val());
            $.cookie('commandPort', $(xmlDoc).find('Port').eq(0).find('Command').eq(0).text());
            $.cookie('rtspPort', $(xmlDoc).find('Port').eq(0).find('RTP').eq(0).text());
            window.location.href = "main.html";
        },
        error: function (xhr, textStatus) {
            if ("401" != xhr.status){
                if ("timeout" == textStatus) {
                    showMsg($.i18n.prop('i18n-link-timeout'), "loginMSG");
                }else {
                    showMsg($.i18n.prop('i18n-network-issue'), "loginMSG");
                }
            }else{
                showMsg($.i18n.prop('i18n-login-failed'), "loginMSG");
            }
        }
    });
}


/**********************************
 功能: 按回车键登录
 ***********************************/
$(document).keydown(function(event) {
    if (event.keyCode === 13) {
        Login();
    }
});

var Base64 = {
    // private property
    _keyStr: "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",

    // public method for encoding
    encode: function (input) {
        var output = "";
        var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
        var i = 0;

        input = Base64._utf8_encode(input);

        while (i < input.length) {

            chr1 = input.charCodeAt(i++);
            chr2 = input.charCodeAt(i++);
            chr3 = input.charCodeAt(i++);

            enc1 = chr1 >> 2;
            enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
            enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
            enc4 = chr3 & 63;

            if (isNaN(chr2)) {
                enc3 = enc4 = 64;
            } else if (isNaN(chr3)) {
                enc4 = 64;
            }

            output = output + this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) + this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);

        }

        return output;
    },

    // public method for decoding
    decode: function (input) {
        var output = "";
        var chr1, chr2, chr3;
        var enc1, enc2, enc3, enc4;
        var i = 0;

        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");

        while (i < input.length) {

            enc1 = this._keyStr.indexOf(input.charAt(i++));
            enc2 = this._keyStr.indexOf(input.charAt(i++));
            enc3 = this._keyStr.indexOf(input.charAt(i++));
            enc4 = this._keyStr.indexOf(input.charAt(i++));

            chr1 = (enc1 << 2) | (enc2 >> 4);
            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
            chr3 = ((enc3 & 3) << 6) | enc4;

            output = output + String.fromCharCode(chr1);

            if (enc3 != 64) {
                output = output + String.fromCharCode(chr2);
            }
            if (enc4 != 64) {
                output = output + String.fromCharCode(chr3);
            }

        }

        output = Base64._utf8_decode(output);

        return output;

    },

    // private method for UTF-8 encoding
    _utf8_encode: function (string) {
        string = string.replace(/\r\n/g, "\n");
        var utftext = "";

        for (var n = 0; n < string.length; n++) {

            var c = string.charCodeAt(n);

            if (c < 128) {
                utftext += String.fromCharCode(c);
            } else if ((c > 127) && (c < 2048)) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            } else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }

        }

        return utftext;
    },

    // private method for UTF-8 decoding
    _utf8_decode: function (utftext) {
        var string = "";
        var i = 0;
        var c = c1 = c2 = 0;

        while (i < utftext.length) {

            c = utftext.charCodeAt(i);

            if (c < 128) {
                string += String.fromCharCode(c);
                i++;
            } else if ((c > 191) && (c < 224)) {
                c2 = utftext.charCodeAt(i + 1);
                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
                i += 2;
            } else {
                c2 = utftext.charCodeAt(i + 1);
                c3 = utftext.charCodeAt(i + 2);
                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
                i += 3;
            }

        }

        return string;
    }
};