[LED] Refactor LED handling (#2051)

Refactor LED handling into a library
Use a task instead of relying on the loop for precise timing

Co-authored-by: Florian <1technophile@users.noreply.github.com>

lib/LEDManager/LEDManager.h

@@ -0,0 +1,107 @@
+/*  
+    Theengs LEDManager - We Unite Sensors in One Open-Source Interface
+  
+    Copyright: (c)Florian ROBERT
+
+    This file is part of LEDManager library.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 3 of the License, or (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program; if not, write to the Free Software Foundation,
+    Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+*/
+#ifndef LED_MANAGER_H
+#define LED_MANAGER_H
+
+#include <Arduino.h>
+
+#include <vector>
+
+#ifdef LED_ADDRESSABLE
+#  include <Adafruit_NeoPixel.h>
+#endif
+
+#ifndef BLINK_INTERVAL
+#  define BLINK_INTERVAL 500
+#endif
+
+#ifndef PULSE_INTERVAL
+#  define PULSE_INTERVAL 30
+#endif
+
+#ifndef FADE_AMOUNT
+#  define FADE_AMOUNT 5
+#endif
+
+// Define the pins for the RGB LED power if needed
+#ifndef LED_ADDRESSABLE_POWER
+#  define LED_ADDRESSABLE_POWER -1
+#endif
+
+class LEDManager {
+public:
+  enum Mode { OFF,
+              STATIC,
+              BLINK,
+              PULSE };
+
+  LEDManager();
+  void init();
+  void addLEDStrip(int pin, int numLeds);
+  void setMode(int stripIndex, int ledIndex, Mode mode, uint32_t color, int durationOrBlinkCount = -1);
+  void update();
+  void setBrightness(uint8_t brightness);
+
+private:
+  struct QueuedState {
+    Mode mode;
+    uint32_t color;
+    int durationOrBlinkCount;
+    bool isQueued;
+  };
+
+  struct LEDState {
+    Mode mode;
+    Mode previousMode;
+    uint32_t color;
+    uint32_t previousColor;
+    int durationOrBlinkCount;
+    unsigned long lastUpdateTime;
+    int blinkCounter;
+    bool isBlinkOn;
+    int brightness;
+    int fadeAmount;
+    QueuedState queuedState;
+  };
+
+  struct LEDStrip {
+#ifdef LED_ADDRESSABLE
+    Adafruit_NeoPixel* strip;
+#endif
+    int pin;
+    std::vector<LEDState> ledStates;
+  };
+
+  std::vector<LEDStrip> ledStrips;
+  int globalBrightness;
+
+  void setModeForSingleLED(int stripIndex, int ledIndex, Mode mode, uint32_t color, int durationOrBlinkCount);
+  void setLEDColor(int stripIndex, int ledIndex, uint32_t color);
+  void handleBlink(int stripIndex, int ledIndex);
+  void handlePulse(int stripIndex, int ledIndex);
+  void handleStatic(int stripIndex, int ledIndex);
+  void returnToPreviousState(int stripIndex, int ledIndex);
+  void applyQueuedState(int stripIndex, int ledIndex);
+  void extractRGB(uint32_t color, uint8_t& r, uint8_t& g, uint8_t& b);
+};
+
+#endif // LED_MANAGER_H