Handle slow AI backend timeouts

src/ai_typewriter/ai_client.py

@@ -34,6 +34,13 @@ def _ask_ollama(prompt: str, config: AppConfig) -> str:
         response = requests.post(url, json=payload, timeout=config.request_timeout_seconds)
         response.raise_for_status()
         data = response.json()
+    except requests.Timeout as exc:
+        timeout_label = "désactivé" if config.request_timeout_seconds is None else f"{config.request_timeout_seconds:.0f} s"
+        raise AIClientError(
+            "Ollama n'a pas répondu avant le délai configuré "
+            f"({timeout_label}). Le modèle est peut-être en chargement ou trop lent; "
+            "augmentez request_timeout_seconds dans config.json, ou mettez 0 pour désactiver le timeout."
+        ) from exc
     except requests.RequestException as exc:
         raise AIClientError(f"Erreur Ollama: {exc}") from exc
     except ValueError as exc:
@@ -65,6 +72,13 @@ def _ask_gemini(prompt: str, config: AppConfig) -> str:
         )
         response.raise_for_status()
         data = response.json()
+    except requests.Timeout as exc:
+        timeout_label = "désactivé" if config.request_timeout_seconds is None else f"{config.request_timeout_seconds:.0f} s"
+        raise AIClientError(
+            "Gemini n'a pas répondu avant le délai configuré "
+            f"({timeout_label}). Augmentez request_timeout_seconds dans config.json, "
+            "ou mettez 0 pour désactiver le timeout."
+        ) from exc
     except requests.RequestException as exc:
         raise AIClientError(f"Erreur Gemini: {exc}") from exc
     except ValueError as exc:

src/ai_typewriter/config.py

@@ -15,7 +15,7 @@ class AppConfig:
     api_key: str = ""
     server_url: str = "http://localhost:11434"
     hotkey: str = "ctrl+alt+a"
-    request_timeout_seconds: float = 120.0
+    request_timeout_seconds: float | None = 300.0
     copy_wait_seconds: float = 1.0
     type_delay_seconds: float = 0.0
     restore_clipboard: bool = True
@@ -33,6 +33,13 @@ def _coerce_provider(value: Any) -> Provider:
     return provider  # type: ignore[return-value]
 
 
+def _coerce_timeout(value: Any) -> float | None:
+    timeout = float(value)
+    if timeout <= 0:
+        return None
+    return timeout
+
+
 def load_config(path: str | Path = "config.json") -> AppConfig:
     cfg_path = Path(path)
     if not cfg_path.exists():
@@ -46,7 +53,7 @@ def load_config(path: str | Path = "config.json") -> AppConfig:
         api_key=str(data.get("api_key", "")),
         server_url=str(data.get("server_url", "http://localhost:11434")).rstrip("/"),
         hotkey=str(data.get("hotkey", "ctrl+alt+a")).lower(),
-        request_timeout_seconds=float(data.get("request_timeout_seconds", 120)),
+        request_timeout_seconds=_coerce_timeout(data.get("request_timeout_seconds", 300)),
         copy_wait_seconds=float(data.get("copy_wait_seconds", 1)),
         type_delay_seconds=float(data.get("type_delay_seconds", 0)),
         restore_clipboard=bool(data.get("restore_clipboard", True)),