Add TMDB API key instructions to README.md (#442)

* Add TMDB API key instructions to README.md

Author: AlessandroPerazzetta

README.md

@@ -75,6 +75,15 @@ python test_run.py
 # Linux/MacOS
 python3 test_run.py
 ```
+---
+
+## TMDB API Key required
+To enable search features, you need to obtain a TMDB API key:
+1. Sign up at [The Movie Database (TMDB)](https://developer.themoviedb.org/docs/getting-started)
+2. Navigate to your account settings and find the API section
+3. Generate a new API key
+4. Add the API key to your .env file (inside the StreamingCommunity directory) under the `TMDB_API_KEY` variable or insert it when required during execution
+
 
 ---
 

StreamingCommunity/run.py

@@ -278,6 +278,7 @@ def force_exit():
     print("Uscita forzata con os._exit(0)")
     os._exit(0)
 
+
 def check_env_file():
     required_keys = ['TMDB_API_KEY']
 
@@ -286,16 +287,25 @@ def check_env_file():
         console.print("\n[red]Please create a .env file in the current directory with the necessary configurations.")
 
         for key in required_keys:
+            console.print(f"\n[yellow]To get your {key}:[/yellow]")
+            console.print(f"[cyan]1. Go to: https://www.themoviedb.org/settings/api/request")
+            console.print(f"[cyan]2. Register or log in to your account")
+            console.print(f"[cyan]3. Create an API request and copy your API key\n[/cyan]")
+            
             while True:
                 value = console.input(f"[cyan]Please enter the value for [bold]{key}[/bold]: [/cyan]").strip()
-
-                with open(env_path, 'a') as f:
-                    f.write(f"{key}={value}\n")
-                console.print(f"[green]{key} added to .env file.[/green]")
-                break
+                
+                if value:
+                    with open(env_path, 'a') as f:
+                        f.write(f"{key}={value}\n")
+                    console.print(f"[green]{key} added to .env file.[/green]")
+                    break
+                else:
+                    console.print(f"[red]Error: {key} cannot be empty. Please try again.[/red]")
 
         console.print("\n[green].env file created successfully. Please restart the application.[/green]")
 
+
 def check_dns():
     """Check DNS configuration and exit if required."""
     if BYPASS_DNS: