multiple completions

Author: daviidy

app/InputHandler.js

@@ -8,6 +8,7 @@ class InputHandler {
 
     async getInput() {
         return new Promise((resolve) => {
+            let tabCounter = 0;
             const onKeypress = (char, key) => { 
                 if (key.name === 'return' || key.name === 'enter') {
                     this.readline.input.removeListener('keypress', onKeypress);
@@ -22,22 +23,33 @@ class InputHandler {
                         // Autocomplete if there's only one suggestion
                         this.inputBuffer = suggestions[0] + ' ';
                         this.readline.write(null, { ctrl: true, name: 'u' }); // Clear the current line
-                        this.readline.write(this.inputBuffer); // Write the autocompleted input
+                        this.readline.write(this.inputBuffer);
                     } else if (suggestions.length > 1) {
-                        console.log('\n' + suggestions.join(' '));
-                        this.readline.write(null, { ctrl: true, name: 'u' });
-                        this.readline.prompt();
-                        this.readline.write(this.inputBuffer); // Reprint the current input
+                        if (tabCounter === 0) {
+                            // First <TAB> press: ring the bell
+                            process.stdout.write('\x07');
+                            this.readline.write(null, { ctrl: true, name: 'u' });
+                            this.readline.write(this.inputBuffer);
+                            tabCounter++;
+                        } else {
+                            // Second <TAB> press: display suggestions
+                            console.log('\n' + suggestions.join('  '));
+                            this.readline.write(null, { ctrl: true, name: 'u' });
+                            this.readline.prompt();
+                            this.readline.write(this.inputBuffer);
+                            tabCounter = 0;
+                        }
                     } else {
                         // No valid suggestions, ring the bell
                         process.stdout.write('\x07');
-                        this.readline.write(null, { ctrl: true, name: 'u' }); // Clear the current line
+                        this.readline.write(null, { ctrl: true, name: 'u' });
                         this.readline.write(this.inputBuffer);
+                        tabCounter = 0;
                     }
                 } else if (key.name === 'backspace') {
                     // Handle Backspace
                     this.inputBuffer = this.inputBuffer.slice(0, -1);
-                    this.readline.write(null, { ctrl: true, name: 'u' }); // Clear the current line
+                    this.readline.write(null, { ctrl: true, name: 'u' });
                     this.readline.write(this.inputBuffer);
                 } else {
                     // Add the normal character pressed, to the input buffer