Fix: Health Check tolerante con timeout 10s y máximo 2 fallos antes de bloquear (#9)

botdiscord/translate.py

@@ -68,10 +68,12 @@ async def _translate_segment(session, url, segment, target_code):
 
 _libretranslate_healthy: bool = True
 _last_health_check: float = 0
+_consecutive_failures: int = 0
+_MAX_FAILURES = 2  # Tolerar hasta 2 fallos antes de marcar como caído
 
 async def check_libretranslate_health(url: str) -> bool:
     """Verifica si LibreTranslate está disponible. Cachea el resultado 30 segundos."""
-    global _libretranslate_healthy, _last_health_check
+    global _libretranslate_healthy, _last_health_check, _consecutive_failures
     import time
     now = time.monotonic()
     if now - _last_health_check < 30:
@@ -79,14 +81,27 @@ async def check_libretranslate_health(url: str) -> bool:
     
     _last_health_check = now
     try:
+        check_url = url.replace("/translate", "/languages")
+        if "/languages" not in check_url:
+            check_url = url.rstrip("/") + "/../languages"
         async with aiohttp.ClientSession() as session:
-            async with session.get(url.replace("/translate", "/languages"), timeout=3) as resp:
-                _libretranslate_healthy = resp.status == 200
-    except Exception:
-        _libretranslate_healthy = False
+            async with session.get(check_url, timeout=10) as resp:
+                if resp.status == 200:
+                    _consecutive_failures = 0
+                    _libretranslate_healthy = True
+                else:
+                    _consecutive_failures += 1
+    except Exception as e:
+        _consecutive_failures += 1
+        log.warning(f"⚠️ LibreTranslate health check falló (intento {_consecutive_failures}/{_MAX_FAILURES}): {e}")
+    
+    if _consecutive_failures >= _MAX_FAILURES:
+        _libretranslate_healthy = False
+        log.warning("⚠️ LibreTranslate no está disponible tras varios intentos.")
+    elif _consecutive_failures > 0:
+        # Un solo fallo no bloquea el servicio
+        _libretranslate_healthy = True
     
-    if not _libretranslate_healthy:
-        log.warning("⚠️ LibreTranslate no está disponible o tardó demasiado en responder.")
     return _libretranslate_healthy
 
 async def translate_text(text: str, target_lang: str) -> str: