From 4b5f0f8d77856488fbec95c8d9bd0619a89899de Mon Sep 17 00:00:00 2001
From: Administrator <Dennys.Murillo@escueladerefrigeracion.edu.pe>
Date: Fri, 10 Jul 2026 14:34:59 -0500
Subject: [PATCH] =?UTF-8?q?A=C3=B1adir=20frontend/src/components/Indicador?=
 =?UTF-8?q?Actualizacion.jsx?=
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---
 .../src/components/IndicadorActualizacion.jsx | 97 +++++++++++++++++++
 1 file changed, 97 insertions(+)
 create mode 100644 frontend/src/components/IndicadorActualizacion.jsx

diff --git a/frontend/src/components/IndicadorActualizacion.jsx b/frontend/src/components/IndicadorActualizacion.jsx
new file mode 100644
index 0000000..6da6483
--- /dev/null
+++ b/frontend/src/components/IndicadorActualizacion.jsx
@@ -0,0 +1,97 @@
+// src/components/IndicadorActualizacion.jsx
+// Indicador (arriba-derecha) con la hora de la última actualización + botón de
+// recarga. Al pulsar: re-lee las bases para la vista actual y recachea el resto.
+import { useState, useEffect, useCallback } from "react";
+import { api } from "../lib/api";
+import { getVistaActual, emitirRefresco } from "../lib/vistaActual";
+
+function formatearHora(iso) {
+  if (!iso) return "—";
+  try {
+    const d = new Date(iso);
+    return d.toLocaleString("es-PE", {
+      day: "2-digit", month: "2-digit",
+      hour: "2-digit", minute: "2-digit",
+    });
+  } catch {
+    return "—";
+  }
+}
+
+export default function IndicadorActualizacion() {
+  const [hora, setHora] = useState(null);
+  const [cargando, setCargando] = useState(false);
+
+  const consultar = useCallback(async () => {
+    try {
+      const r = await api.ultimaActualizacion();
+      setHora(r?.hora || null);
+    } catch { /* silencioso */ }
+  }, []);
+
+  useEffect(() => {
+    consultar();
+    const id = setInterval(consultar, 60000);
+    return () => clearInterval(id);
+  }, [consultar]);
+
+  async function recargar() {
+    if (cargando) return;
+    setCargando(true);
+    try {
+      const r = await api.cacheRefreshManual(getVistaActual());
+      setHora(r?.hora || null);
+      emitirRefresco();
+    } catch { /* silencioso */ }
+    finally { setCargando(false); }
+  }
+
+  return (
+    <>
+      <style>{`
+        @keyframes spin-actualiza { to { transform: rotate(360deg); } }
+        .ind-actualiza-btn { transition: color .15s, transform .15s; }
+        .ind-actualiza-btn:hover:not(:disabled) { color:#7dd3fc; transform: scale(1.15); }
+        .ind-actualiza-spin { animation: spin-actualiza .9s linear infinite; }
+      `}</style>
+      <div
+        style={{
+          position: "fixed", right: 16, top: 14, zIndex: 60,
+          display: "flex", alignItems: "center", gap: 8,
+          background: "rgba(15,23,42,0.9)",
+          color: cargando ? "#7dd3fc" : "#cbd5e1",
+          border: "1px solid " + (cargando ? "#0ea5e9" : "#334155"),
+          borderRadius: 20, padding: "6px 12px",
+          fontSize: 12, lineHeight: 1, fontWeight: 500,
+          boxShadow: "0 2px 8px rgba(0,0,0,0.28)",
+          backdropFilter: "blur(4px)",
+          userSelect: "none",
+        }}
+        title="Última actualización de las bases de datos"
+      >
+        <span style={{ opacity: cargando ? 1 : 0.85 }}>
+          {cargando ? "Actualizando…" : formatearHora(hora)}
+        </span>
+        <button
+          onClick={recargar}
+          disabled={cargando}
+          className={"ind-actualiza-btn" + (cargando ? " ind-actualiza-spin" : "")}
+          title={cargando ? "Actualizando datos…" : "Actualizar ahora"}
+          style={{
+            background: "transparent", border: "none",
+            cursor: cargando ? "default" : "pointer",
+            color: "#38bdf8", fontSize: 15, padding: 0, lineHeight: 1,
+            display: "flex", alignItems: "center",
+          }}
+        >
+          <svg width="15" height="15" viewBox="0 0 24 24" fill="none"
+               stroke="currentColor" strokeWidth="2.4"
+               strokeLinecap="round" strokeLinejoin="round">
+            <path d="M21 12a9 9 0 1 1-2.64-6.36" />
+            <path d="M21 3v6h-6" />
+          </svg>
+        </button>
+      </div>
+    </>
+  );
+}
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