Solution

src/app.js

@@ -1 +1,74 @@
-// write code here
+/* eslint-disable no-console */
+
+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+const readline = require('readline');
+
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout,
+});
+
+const moveFiles = (fileName, dest) => {
+  const srcPath = path.resolve(fileName);
+  let destPath = path.resolve(dest);
+
+  if (!fs.existsSync(srcPath)) {
+    console.error(`Error: Source file "${srcPath}" does not exist.`);
+
+    return;
+  }
+
+  if (!fs.statSync(srcPath).isFile()) {
+    console.error('Error: Only file moving is supported.');
+
+    return;
+  }
+
+  if (
+    destPath.endsWith(path.sep) ||
+    (fs.existSync(destPath) && fs.statSync(destPath).isDirectory())
+  ) {
+    if (!fs.existsSync(destPath)) {
+      console.error(`Error: Destination directory "${dest}" does not exist.`);
+
+      return;
+    }
+
+    destPath = path.join(destPath, path.basename(srcPath));
+  }
+
+  try {
+    fs.renameSync(srcPath, destPath);
+
+    console.log(`File moved successfully from ${srcPath} to ${destPath}`);
+  } catch (error) {
+    console.error(`Error during file move: ${error.message}`);
+  }
+};
+
+const handleUserInput = (userInput) => {
+  const [command, fileName, dest] = userInput.split(' ');
+
+  if (command !== 'mv') {
+    console.error('Invalid command');
+    rl.close();
+
+    return;
+  }
+
+  if (!fileName || !dest) {
+    console.error('Usage: node index.js <source> <destination>');
+    rl.close();
+
+    return;
+  }
+
+  moveFiles(fileName, dest);
+
+  rl.close();
+};
+
+rl.question('Enter command:', handleUserInput);