From b4d5c790d87f62ffa0776622eb191935a27fed1c Mon Sep 17 00:00:00 2001
From: Administrator <Dennys.Murillo@escueladerefrigeracion.edu.pe>
Date: Mon, 31 Aug 2026 14:28:30 -0500
Subject: [PATCH] Actualizar backend/cache_manager.py

---
 backend/cache_manager.py | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/backend/cache_manager.py b/backend/cache_manager.py
index 9f63369..3571777 100644
--- a/backend/cache_manager.py
+++ b/backend/cache_manager.py
@@ -6,7 +6,7 @@ from typing import Any, Callable, Dict, Tuple
 
 _CACHE: Dict[str, Tuple[float, Any]] = {}
 _LOCK = threading.Lock()
-_DEFAULT_TTL = 900  # 15 min
+_DEFAULT_TTL = 1800  # 30 min
 
 
 def _make_key(prefix: str, args: tuple) -> str:
@@ -60,20 +60,40 @@ def cache_stats() -> dict:
 _background_started = False
 
 
-def start_background_refresh(refresh_fn: Callable[[], None], interval: int = 900):
+def _en_horario_refresco(ahora):
+    """Reglas de auto-refresco (hora local del servidor):
+      - Madrugada (antes de 07:30 o desde 22:30): NO (solo manual).
+      - Domingo: solo de 08:00 a 14:00.
+      - Lun-Sab: de 07:30 a 22:30."""
+    minutos = ahora.hour * 60 + ahora.minute
+    dow = ahora.weekday()   # 0=lunes ... 6=domingo
+    if dow == 6:            # domingo: 08:00 - 14:00
+        return 8 * 60 <= minutos < 14 * 60
+    return 7 * 60 + 30 <= minutos < 22 * 60 + 30   # lun-sab: 07:30 - 22:30
+
+
+def start_background_refresh(refresh_fn: Callable[[], None], interval: int = 1800):
     global _background_started
     if _background_started:
         return
     _background_started = True
 
     def _loop():
+        from datetime import datetime
+        ultimo = 0.0
         while True:
-            time.sleep(interval)
+            time.sleep(60)   # chequear cada minuto para respetar los horarios
+            ahora = datetime.now()
+            if not _en_horario_refresco(ahora):
+                continue     # fuera de horario -> no auto-refresca
+            if (time.time() - ultimo) < interval:
+                continue     # aún no pasan 'interval' seg desde el último
             try:
                 refresh_fn()
+                ultimo = time.time()
             except Exception as e:
                 print(f"[background refresh] error: {e}")
 
     t = threading.Thread(target=_loop, daemon=True)
     t.start()
-    print(f"[cache] refresco en segundo plano cada {interval}s iniciado")
+    print(f"[cache] refresco en segundo plano cada {interval}s (con horario) iniciado")