🎨 improve cli

backend/beastiary/cli.py

@@ -14,6 +14,11 @@
 
 app = typer.Typer()
 
+def address_is_available(host: str, port: str) -> bool:
+    import socket
+
+    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
+        return s.connect_ex((host, int(port))) != 0
 
 @app.command(context_settings={"help_option_names": ["-h", "--help"]})
 def main(
@@ -80,12 +85,18 @@ def main(
     if debug:
         log_level = "debug"
     if testing:
-        typer.Exit()
+        return typer.Exit()
+    if not address_is_available(host, port):
+        typer.secho(
+            f"Address {host}:{port} is already in use. Please choose another address.",
+            fg=typer.colors.RED,
+        )
+        return typer.Exit(1)
     if share:
         typer.echo("Creating public shareable link...")
         with cloudflared(port=port) as cloudflared_url:
             url_with_token = typer.style(
-                f"{cloudflared_url}", fg=typer.colors.GREEN, bold=False
+                f"{cloudflared_url}/login?token={token}", fg=typer.colors.GREEN, bold=False
             )
             typer.echo(f"\nBeastiary is now publicly accessible at: {url_with_token}")
             uvicorn.run(api, host=host, port=port, log_level=log_level)