fix error, remove stuff, add stuff

frontend/src/app.js

@@ -0,0 +1,21 @@
+const express = require( 'express' );
+let app = express();
+const path = require( 'path' );
+const fs = require( 'fs' );
+const bodyParser = require( 'body-parser' );
+const exec = require( 'child_process' ).exec;
+
+app.use( bodyParser.urlencoded( { extended: false } ) );
+app.use( bodyParser.json() );
+
+function execute(command, callback){
+    exec(command, function(error, stdout, stderr){ callback(stdout); });
+};
+
+app.get( '/api/getEngines', ( request, response ) => {
+    execute( 'ImageVideoUpscaler-cli -p', out => {
+        response.send( out );
+    } );
+} );
+
+app.listen( 8081 );

frontend/src/background.js

@@ -3,63 +3,9 @@
 import { app, protocol, BrowserWindow } from 'electron';
 import { createProtocol } from 'vue-cli-plugin-electron-builder/lib';
 import installExtension, { VUEJS3_DEVTOOLS } from 'electron-devtools-installer';
-const electron = require( 'electron' );
-const child_process = require( 'child_process' );
-const dialog = electron.dialog;
 const isDevelopment = process.env.NODE_ENV !== 'production';
 
-
-// Src for run_script function: https://stackoverflow.com/a/57058495
-
-// This function will output the lines from the script 
-// and will return the full combined output
-// as well as exit code when it's done (using the callback).
-function run_script(command, args, callback) {
-  var child = child_process.spawn(command, args, {
-      encoding: 'utf8',
-      shell: true
-  });
-  // You can also use a variable to save the output for when the script closes later
-  child.on('error', (error) => {
-      dialog.showMessageBox({
-          title: 'Title',
-          type: 'warning',
-          message: 'Error occured.\r\n' + error
-      });
-  });
-
-  child.stdout.setEncoding('utf8');
-  child.stdout.on('data', (data) => {
-      //Here is the output
-      data=data.toString();   
-      console.log(data);      
-  });
-
-  child.stderr.setEncoding('utf8');
-  child.stderr.on('data', (data) => {
-      // Return some data to the renderer process with the mainprocess-response ID
-      mainWindow.webContents.send('mainprocess-response', data);
-      //Here is the output from the command
-      console.log(data);  
-  });
-
-  child.on('close', (code) => {
-      //Here you can get the exit code of the script  
-      switch (code) {
-          case 0:
-              dialog.showMessageBox({
-                  title: 'Title',
-                  type: 'info',
-                  message: 'End process.\r\n'
-              });
-              break;
-      }
-
-  });
-  if (typeof callback === 'function')
-      callback();
-}
-
+require( './app.js' )
 
 // Scheme must be registered before the app is ready
 protocol.registerSchemesAsPrivileged([

frontend/src/views/SettingsView.vue

@@ -6,12 +6,10 @@
 </template>
 
 <script>
-import run_script from '@/background.js'
-
 export default {
     methods: {
         run() {
-            run_script( 'ls' )
+            // run_script( 'ls' )
         }
     }
 }