zipFunctions.js

	const express    = require('express');
	const fs         = require('fs');
	const fsReaddir = require('fs-readdir');
	const JSZip = require('jszip');
 
 const clientFolder = require('./clientFolder.js');

	

	function streamFilesToZip(promiseArray,zip, clientName){
		let finishedArray=[];
		return new Promise((resolve,reject)=> {

			Promise.all(promiseArray).then(files => {
				
				files.forEach(file => {
					if (file.zipFileName === 'backend.war'){
						fs.readFileAsync = function(filePath){
							return new Promise(function (resolve, reject) {
								fs.readFile(filePath, function(err, data) {
									if (err) {
										reject(err);
									} else {
										resolve(data);
									}

								});
							});
						}

						function addBackendToZip(data){
							return new Promise(function(resolve,reject){
								zip.file(file.zipFileName, data);
								resolve();
							})
						}
						backendContent = fs.readFileAsync(file.path);
						backendContent.then(function(data){
								addBackendToZip(data).then(function(){
								finishedArray.push('backend finished');
								if(finishedArray.length === promiseArray.length){
									finishedArray=[];
									clientFolder.removeClientFolder(clientName);
									resolve(zip);
								}

							})

						})

					}
					if(file.zipFileName === 'frontend'){
						const frontendStream = fsReaddir(file.path)
						.on('error', function(err) {
							console.log('error:', err);
						}).on('data', function(data){
							for (let i=0; i<data.length; i++) {
								const frontendReadStream = fs.createReadStream(data[i]);
								zip.file(data[i], frontendReadStream);
							}
						}).on('finish', function(){
							finishedArray.push('frontend finished');
							if(finishedArray.length === promiseArray.length){
								finishedArray=[];
								clientFolder.removeClientFolder(clientName);
								resolve(zip);
							}
							
						})
					}

				})
			})

		})
	}

	module.exports= { 
		streamFilesToZip
	}