From ebaaa8cc4b6105686077031a59fe9fdb601cf682 Mon Sep 17 00:00:00 2001
From: eddy <eddy@macmini.local>
Date: Sun, 2 Aug 2026 18:20:55 +0200
Subject: [PATCH] =?UTF-8?q?feat(client):=20uniform=20LED=20signaling=20?=
 =?UTF-8?q?=E2=80=94=20off=20after=2060s=20stable=20connection?=
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---
 src/client.cpp | 43 ++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 5 deletions(-)

diff --git a/src/client.cpp b/src/client.cpp
index 59757b7..addf69a 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -47,6 +47,12 @@ static bool relay1SendState = false;
 static bool relay2SendState = false;
 static uint32_t seq = 0;
 
+#define STABLE_LED_TIMEOUT_MS 60000
+uint32_t connectionStableMs = 0;
+uint32_t relayFlashUntil = 0;
+bool otaInProgress = false;
+bool otaEnded = false;
+
 static bool bleReady = false;
 static bool serverFound = false;
 static NimBLEAddress serverAddress;
@@ -365,13 +371,40 @@ void loop() {
     bool relay1State = t1Active || btnActive;
     bool relay2State = t2Active;
 
-    if (relay1State || relay2State) {
-        leds[0] = CRGB::Green;
-    } else if (connected) {
-        leds[0] = CRGB::Blue;
+    CRGB ledColor;
+
+    if (otaInProgress) {
+        ledColor = otaEnded
+            ? CRGB::Yellow
+            : (((millis() / 100) % 2) ? CRGB::Green : CRGB::Black);
     } else {
-        leds[0] = CRGB::Red;
+        if (connected) {
+            if (connectionStableMs == 0) connectionStableMs = millis();
+        } else {
+            connectionStableMs = 0;
+        }
+
+        if (connected) {
+            ledColor = (millis() - connectionStableMs >= STABLE_LED_TIMEOUT_MS)
+                ? CRGB::Black
+                : CRGB::Yellow;
+        } else {
+            ledColor = CRGB::Red;
+        }
+
+        static bool lastRelayActive = false;
+        bool relayActive = relay1State || relay2State;
+        if (relayActive != lastRelayActive) {
+            relayFlashUntil = millis() + 150;
+        }
+        lastRelayActive = relayActive;
+
+        if (millis() < relayFlashUntil) {
+            ledColor = CRGB::Green;
+        }
     }
+
+    leds[0] = ledColor;
     FastLED.show();
 
     if (connected && pCmdChar != nullptr) {