From d24b234e30e6258f14b84ea4a668e8efdef5041e Mon Sep 17 00:00:00 2001
From: Lizandro Guarnizo <77708265+lizandrogd@users.noreply.github.com>
Date: Tue, 7 Jul 2026 22:47:13 -0500
Subject: [PATCH] fix(display): corregir turnos que no aparecen en pantalla TV
MIME-Version: 1.0
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- sse_turno.php: sleep(2)→sleep(1) para detectar notificarSSE en máx 1s
- display*.php: visibilitychange + focus → fetch inmediato al despertar pantalla
- display*.php: Wake Lock API para evitar throttling del browser en TVs
- display.php: SSE open → cargarSnapshot() inmediato al reconectar

Causa raíz: browsers throttlean setInterval a >1min en tabs sin foco;
las TVs inactivas dejaban de recibir actualizaciones aunque el servidor
las enviara correctamente.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 modules/turnero/api/sse_turno.php           |  2 +-
 modules/turnero/views/display.php           | 20 +++++++++++++++++++-
 modules/turnero/views/display_global.php    | 11 +++++++++++
 modules/turnero/views/display_recepcion.php | 11 +++++++++++
 4 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/modules/turnero/api/sse_turno.php b/modules/turnero/api/sse_turno.php
index a9c57a8..713f09e 100644
--- a/modules/turnero/api/sse_turno.php
+++ b/modules/turnero/api/sse_turno.php
@@ -130,7 +130,7 @@ $stmt->execute([$sesionId]);
 $lastPing = $stmt->fetchColumn() ?: null;
 
 while (!connection_aborted()) {
-    sleep(2);
+    sleep(1);
 
     // Leer el último sse_ping_at de la sesión
     $stmt = $pdo->prepare('SELECT sse_ping_at FROM turnero_sesiones WHERE id = ?');
diff --git a/modules/turnero/views/display.php b/modules/turnero/views/display.php
index dba6518..deff002 100644
--- a/modules/turnero/views/display.php
+++ b/modules/turnero/views/display.php
@@ -558,8 +558,8 @@ function conectarSSE() {
     esSource.addEventListener('open', () => {
         reconnectDelay = 2000;
         sseViva = true;
-        // SSE conectado → ocultar chip (el polling garantiza actualización)
         chipEstado.style.display = 'none';
+        cargarSnapshot(); // re-fetch inmediato al reconectar (cubre gaps de SSE caído)
     });
 
     esSource.addEventListener('cola_update', (e) => {
@@ -582,6 +582,24 @@ function conectarSSE() {
 // ── Inicio ────────────────────────────────────────────────────
 iniciarPolling();
 conectarSSE();
+
+// ── Resistir throttling de browser en TVs ────────────────────
+// visibilitychange: pantalla vuelve de reposo o tab recupera foco
+document.addEventListener('visibilitychange', () => {
+    if (!document.hidden) cargarSnapshot();
+});
+window.addEventListener('focus', cargarSnapshot);
+
+// Wake Lock: evita que el browser suspenda el tab
+if ('wakeLock' in navigator) {
+    async function pedirWakeLock() {
+        try { await navigator.wakeLock.request('screen'); } catch (_) {}
+    }
+    pedirWakeLock();
+    document.addEventListener('visibilitychange', () => {
+        if (!document.hidden) pedirWakeLock();
+    });
+}
 </script>
 </body>
 </html>
diff --git a/modules/turnero/views/display_global.php b/modules/turnero/views/display_global.php
index df1674f..af0f50b 100644
--- a/modules/turnero/views/display_global.php
+++ b/modules/turnero/views/display_global.php
@@ -739,6 +739,17 @@ async function cargarSnapshot() {
 
 cargarSnapshot();
 setInterval(cargarSnapshot, 2000);
+
+document.addEventListener('visibilitychange', () => { if (!document.hidden) cargarSnapshot(); });
+window.addEventListener('focus', cargarSnapshot);
+
+if ('wakeLock' in navigator) {
+    async function pedirWakeLock() {
+        try { await navigator.wakeLock.request('screen'); } catch (_) {}
+    }
+    pedirWakeLock();
+    document.addEventListener('visibilitychange', () => { if (!document.hidden) pedirWakeLock(); });
+}
 </script>
 </body>
 </html>
diff --git a/modules/turnero/views/display_recepcion.php b/modules/turnero/views/display_recepcion.php
index a98e4bd..7726787 100644
--- a/modules/turnero/views/display_recepcion.php
+++ b/modules/turnero/views/display_recepcion.php
@@ -373,6 +373,17 @@ async function cargar() {
 
 cargar();
 setInterval(cargar, 2000);
+
+document.addEventListener('visibilitychange', () => { if (!document.hidden) cargar(); });
+window.addEventListener('focus', cargar);
+
+if ('wakeLock' in navigator) {
+    async function pedirWakeLock() {
+        try { await navigator.wakeLock.request('screen'); } catch (_) {}
+    }
+    pedirWakeLock();
+    document.addEventListener('visibilitychange', () => { if (!document.hidden) pedirWakeLock(); });
+}
 </script>
 </body>
 </html>