feat: relay inversé, LED idle solid, luminosité manuelle, auto-flash lux

backend/services/led_service.py

@@ -58,6 +58,7 @@ class LEDService:
         self._lock = threading.Lock()
         self._on_change_cb: Callable | None = None
         self._loop: asyncio.AbstractEventLoop | None = None
+        self._ambient_lux: float = -1.0  # -1 = inconnu
 
     # ── Lifecycle ─────────────────────────────────────────────────────────────
 
@@ -111,6 +112,20 @@ class LEDService:
     def set_color(self, r: int, g: int, b: int):
         self._fill(WS_Color(r, g, b))
 
+    def set_brightness(self, value: int):
+        """Regle la luminosite globale (0-255) et l'applique immediatement."""
+        value = max(0, min(255, value))
+        self._cfg.brightness = value
+        if HAS_WS281X and self._strip:
+            self._strip.setBrightness(value)
+            self._strip.show()
+        logger.info("Luminosite LED: %d", value)
+
+    def set_ambient_lux(self, lux: float):
+        """Definit la luminosite ambiante mesuree (0-255 echelle pixel)."""
+        self._ambient_lux = lux
+        logger.debug("Lux ambiant: %.1f", lux)
+
     # ── Thread principal ──────────────────────────────────────────────────────
 
     def _run(self):
@@ -154,8 +169,14 @@ class LEDService:
     def _effect_idle(self):
         cfg = self._cfg.get_effect("idle")
         c = cfg.color
-        speed = cfg.speed
 
+        if cfg.mode == "solid":
+            self._fill(WS_Color(c[0], c[1], c[2]))
+            self._cmd_event.wait()
+            return
+
+        # mode "breathe" (defaut)
+        speed = cfg.speed
         step = 0
         while not self._cmd_event.is_set() and not self._stop_event.is_set():
             t = (1 + math.sin(step * 0.1)) / 2
@@ -202,9 +223,23 @@ class LEDService:
         flash_color = WS_Color(cfg.color[0], cfg.color[1], cfg.color[2])
         off = WS_Color(0, 0, 0)
 
-        # Boost luminosite max pendant le flash
+        # Calcul de la luminosite du flash
+        # Si auto_brightness activee et lux connu, on adapte. Sinon boost a 255.
+        if self._cfg.auto_brightness and self._ambient_lux >= 0:
+            lux = self._ambient_lux
+            if lux < 50:
+                flash_brightness = 255          # salle sombre → flash plein
+            elif lux < 180:
+                # lineaire : 255 a 50 lux → 120 a 180 lux
+                flash_brightness = int(255 - (lux - 50) / 130 * 135)
+            else:
+                flash_brightness = 80           # salle tres claire → flash reduit
+            logger.debug("Flash brightness auto: %d (lux=%.1f)", flash_brightness, lux)
+        else:
+            flash_brightness = 255
+
         if HAS_WS281X and self._strip:
-            self._strip.setBrightness(255)
+            self._strip.setBrightness(flash_brightness)
 
         try:
             for _ in range(cfg.flashes):