ucentral-state: Respect LED config before enabling

Ensure that LEDs are configured to be ON before attempting to change their state.

Previously, if the LED was configured to be OFF, it would still enter a double-blink
state when the cloud connection was lost, and then switch to solid ON upon
reconnection—ignoring the configured OFF state.

This update changes that behavior:
    - If LEDs are configured OFF, they will remain OFF even during cloud
      disconnection (no double-blink).
    - After temporary state changes (e.g., during factory reset), the LED will
      return to its configured state (either OFF or ON).

Signed-off-by: Paul White <paul@shasta.cloud>

feeds/ucentral/ucentral-state/files/ucentral-state

@@ -20,6 +20,7 @@ let config;
 let offline_timer;
 let current_state;
 let online = false;
+let leds_off = false;
 
 function self_healing() {
 	let heal_wifi = false;
@@ -148,6 +149,13 @@ function online_handler() {
 
 function config_load() {
 	ulog(LOG_INFO, 'loading config\n');
+
+	uci.load('system');
+	let led_off_cfg = uci.get("system", "@system[0]", "leds_off");
+	if (led_off_cfg == 1) {
+		leds_off = true;
+	}
+
 	uci.load('state');
 	config = uci.get_all('state');
 
@@ -191,7 +199,7 @@ function led_find(alias) {
 function factory_reset_timeout() {
 	let led = led_find('led-running');
 	if (led)
-		led_write(led, 'trigger', 'default-on');
+		led_write(led, 'trigger', leds-off ? 'none' : 'default-on');
 }
 
 let blink_timer;
@@ -210,7 +218,7 @@ let state_handler = {
 	offline: function() {
 		online = false;
 		let led = led_find('led-running');
-		if (led)
+		if (!leds_off && led)
 			led_write(led, 'trigger', 'heartbeat');
 		if (config.ui.offline_trigger) {
 			if (offline_timer)
@@ -223,7 +231,7 @@ let state_handler = {
 	online: function() {
 		online = true;
 		let led = led_find('led-running');
-		if (led)
+		if (!leds_off && led)
 			led_write(led, 'trigger', 'default-on');
 		online_handler();
 		return 0;