var fs = require('fs');
var readline = require('readline');
var os = require('os');
var path = require('path');

// Node.js readline 逐行读取、写入文件内容的示例
// https://www.jb51.net/article/135706.htm
// nodejs读取文件、按行读取
// https://blog.csdn.net/weixin_42171955/article/details/100156212

var strInputFileName = '../dist/index.html';
var strOutputFileName = 'E:\\code\\lou\\public\\view\\order_main\\add.html';
var strOutputFileName2 = 'E:\\code\\lou\\public\\view\\order_main\\edit.html';

var fRead = fs.createReadStream(strInputFileName);
var fWrite = fs.createWriteStream(strOutputFileName);
var fWrite2 = fs.createWriteStream(strOutputFileName2);

fRead.on('end', () => {
  console.log('end');
});

var objReadline = readline.createInterface({
  input: fRead,
  output: fWrite,
  terminal: false
});
objReadline.on('line', (strLine) => {
  let strTemp = `<script>window.id = '';function close(){window.parent.postMessage('message', window.location.protocol+"//"+window.location.host);}</script>${strLine}`;
  let strTemp2 = `<script> window.id = getQueryVariable("id");function getQueryVariable(variable){var query = window.location.search.substring(1);var vars = query.split("&");for (var i=0;i<vars.length;i++) { var pair = vars[i].split("=");if(pair[0] == variable){return pair[1];}}return(false);}function close(){window.parent.postMessage('message', window.location.protocol+"//"+window.location.host);}</script>${strLine}`;
  fWrite.write(strTemp);
  fWrite2.write(strTemp2);
});


objReadline.on('close', () => {
  console.log('readline close...');
});
function removeDir(dir) {
  let files = fs.readdirSync(dir)
  for(var i=0;i<files.length;i++){
    let newPath = path.join(dir,files[i]);
    let stat = fs.statSync(newPath)
    if(stat.isDirectory()){
      //如果是文件夹就递归下去
      removeDir(newPath);
    }else {
      //删除文件
      fs.unlinkSync(newPath);
    }
  }
  fs.rmdirSync(dir)//如果文件夹是空的，就将自己删除掉
}
if(fs.statSync("E:\\code\\lou\\public\\static").isDirectory()){
  //如果是文件夹就递归下去
  removeDir('E:\\code\\lou\\public\\static');
}else {
  //删除文件
  fs.unlinkSync(newPath);
}
fs.mkdir("E:\\code\\lou\\public\\static",function(){//创建目录

})

var stat=fs.stat;

var copy=function(src,dst){
  //读取目录
  fs.readdir(src,function(err,paths){
    console.log(paths)
    if(err){
      throw err;
    }
    paths.forEach(function(path){
      var _src=src+'/'+path;
      var _dst=dst+'/'+path;
      var readable;
      var writable;
      stat(_src,function(err,st){
        if(err){
          throw err;
        }

        if(st.isFile()){
          readable=fs.createReadStream(_src);//创建读取流
          writable=fs.createWriteStream(_dst);//创建写入流
          readable.pipe(writable);
        }else if(st.isDirectory()){
          exists(_src,_dst,copy);
        }
      });
    });
  });
}

var exists=function(src,dst,callback){
  //测试某个路径下文件是否存在
  fs.exists(dst,function(exists){
    if(exists){//不存在
      callback(src,dst);
    }else{//存在
      fs.mkdir(dst,function(){//创建目录
        callback(src,dst)
      })
    }
  })
}

exists('../dist/static','E:\\code\\lou\\public\\static',copy)