var CON_SERVER_ADDRESS = "";//服务器地址
//声明nodejs功能对象
var path = require('path');
var http = require('http');
var fs = require('fs');
var exec = require('child_process').execFile;
//var then = require('/thenjs/thenjs.js');
//初始化当前exe运行的路径，后面很多地方要用
var execPath = path.dirname(process.execPath);//读取本地配置文件，查看是否设置了服务器地址
function ReadServerAddress_Async(next)
{appconfig.read("_CON_SERVER_ADDRESS", function (addr){//console.info(addr);if (addr == ""){window.location.replace("choose-server.html");}else{CON_SERVER_ADDRESS = addr; //赋值console.info("$$ 读取服务器地址：", addr);next(null, CON_SERVER_ADDRESS);}});
}
//读取本地的最大版本文件，不含路径，应该返回 sonicc-9.05.zip
function GetClientMaxAppName_Async(next)
{fs.readdir(execPath + "\\app", function (err, files){try{var clientVersion = 0;var maxVersionFileName = "";for (var i = 0; i < files.length; i++){var ffn = path.basename(files[i], ".zip");var tVersion = parseFloat(ffn.split('-')[1]);//console.info("tVersion = " + tVersion);if (tVersion > clientVersion)maxVersionFileName = ffn;}console.info("$$ 读取客户机最大版本：", maxVersionFileName);next(null, maxVersionFileName);}catch (ex){_WriteError(ex);//出错后不回调是对的，因为退出按钮已经显示}});
}
//启动本地最新程序
function RunMaxVersionClientFileName()
{var then = require('./node_modules/thenjs');then(function (next){GetClientMaxAppName_Async(next);          //读取客户端最大版本的文件}).then(function (next, res){console.info("$$ 准备启动读取读取最大版本文件", res);var nwjsPath = execPath + "\\nw.exe ";var maxVerFl = execPath + "\\app\\" + res + ".zip ";const spawn = require('child_process').spawn;const child = spawn(nwjsPath, [maxVerFl], {detached: true, //表示启动的进程是独立的});})
}
//检查服务器版本，是不是需要下载
function CheckServerFile_Async(ClientMaxFileName, next)
{$.GetOnlyAsync(CON_SERVER_ADDRESS + "/w8/home/CheckNeedUpdateClient?clientFileName=" + ClientMaxFileName, true,function (res){if (res.xException != null && res.xException != ''){_WriteError("连接服务器成功，但服务器内部异常:", ex);}else{next(null, res);}},function (res){_WriteError("连接服务器异常:", ex);});
}
//下载最新文件
function DownloadFileFromServer (url, dest, next)
{var file = fs.createWriteStream(dest);var request = http.get(url, function (res){var fsize = res.headers['content-length'];res.on('data', function (data){file.write(data);var progressCounter = Math.round(100 - (((fsize - file.bytesWritten) / fsize) * 100), 2);$("#xProgressInfo").html(progressCounter + "%");});res.on('end', function (){file.end();next(null, null);});}).on('error', function (err){fs.unlink(dest);next(null, err.message);});
};$(document).ready(function ()
{var then = require('./node_modules/thenjs');then(function (next){ReadServerAddress_Async(next);          //读取服务器地址，如果没有则转向}).then(function (next, res){GetClientMaxAppName_Async(next);        //读取客户端最大版本的文件}).then(function (next, res){console.info("$$ 客户机最大版本号", res);CheckServerFile_Async(res, next)}).then(function (next, res){console.info("$$ 看看是否需要下载 = " , res);if (res.xNeed){_WriteMsg("下载文件：" + res.xFileName);DownloadFileFromServer(CON_SERVER_ADDRESS + "/w8/zo-content/client-down-package/" + res.xFileName,execPath + "\\app\\" + res.xFileName,next);}else{_WriteMsg("无需更新，准备启动...");next(null, null);}}).then(function (next, res){console.info("$$ 准备启动");RunMaxVersionClientFileName();})
});//辅助性函数//
function _WriteMsg(msg)
{$("#xsubMsg").html(msg);}
function _WriteError(msg, ex)
{$("#xsubMsg").html(msg + "<br>" + ex);$("#btnQuitAndClear,#btnQuit").show();
}
//