Add custom folder name support for category selection

youtube_cli/main.py

@@ -661,17 +661,35 @@ class YouTubeCLI:
         
         while True:
             try:
-                console.print("\n[blue]Select a category (enter number):[/blue]")
+                console.print("\n[blue]Select a category (enter number) or type a custom folder name:[/blue]")
                 choice = input().strip()
-                choice_num = int(choice)
-                if 1 <= choice_num <= len(categories):
-                    selected_category = categories[choice_num - 1]
-                    console.print(f"[green]Selected category: {Path(selected_category).name}[/green]")
-                    return selected_category
+                
+                # Check if input is a number
+                if choice.isdigit():
+                    choice_num = int(choice)
+                    if 1 <= choice_num <= len(categories):
+                        selected_category = categories[choice_num - 1]
+                        console.print(f"[green]Selected category: {Path(selected_category).name}[/green]")
+                        return selected_category
+                    else:
+                        console.print("[red]Invalid selection. Please try again.[/red]")
                 else:
-                    console.print("[red]Invalid selection. Please try again.[/red]")
-            except ValueError:
-                console.print("[red]Please enter a valid number.[/red]")
+                    # Validate custom folder name
+                    if not choice:
+                        console.print("[red]Folder name cannot be empty. Please try again.[/red]")
+                        continue
+                    
+                    # Check for invalid characters (only allow a-z, 0-9, and hyphens/underscores)
+                    import re
+                    if not re.match(r'^[a-zA-Z0-9_-]+$', choice):
+                        console.print("[red]Invalid characters. Only a-z, 0-9, hyphens, and underscores are allowed.[/red]")
+                        continue
+                    
+                    # If valid, use the custom folder name
+                    console.print(f"[green]Using custom folder: {choice}[/green]")
+                    # Return the custom folder name (will be appended to base path)
+                    return choice
+                    
             except KeyboardInterrupt:
                 console.print("\n[yellow]Operation cancelled.[/yellow]")
                 return None