implement RF packet parsing for FUT089

lib/MiLight/FUT089PacketFormatter.cpp

@@ -52,7 +52,44 @@ void FUT089PacketFormatter::parsePacket(const uint8_t *packet, JsonObject& resul
 
   result["device_id"] = (packetCopy[2] << 8) | packetCopy[3];
   result["group_id"] = packetCopy[7];
-  result["device_type"] = "rgb_cct";
+  result["device_type"] = "fut089";
+
+  uint8_t command = (packetCopy[V2_COMMAND_INDEX] & 0x7F);
+  uint8_t arg = packetCopy[V2_ARGUMENT_INDEX];
+
+  if (command == FUT089_ON) {
+    if (arg == FUT089_MODE_SPEED_DOWN) {
+      result["command"] = "mode_speed_down";
+    } else if (arg == FUT089_MODE_SPEED_UP) {
+      result["command"] = "mode_speed_up";
+    } else if (arg == FUT089_WHITE_MODE) {
+      result["command"] = "white_mode";
+    } else if (arg <= 8) { // Group is not reliably encoded in group byte. Extract from arg byte
+      result["state"] = "ON";
+      result["group_id"] = arg;
+    } else if (arg >= 9 && arg <= 17) {
+      result["state"] = "OFF";
+      result["group_id"] = arg-9;
+    }
+  } else if (command == FUT089_COLOR) {
+    uint8_t rescaledColor = (arg - FUT089_COLOR_OFFSET) % 0x100;
+    uint16_t hue = Units::rescale<uint16_t, uint16_t>(rescaledColor, 360, 255.0);
+    result["hue"] = hue;
+  } else if (command == FUT089_KELVIN) {
+    result["color_temp"] = Units::whiteValToMireds(arg, 100);
+  } else if (command == FUT089_BRIGHTNESS) {
+    uint8_t level = constrain(arg, 0, 100);
+    result["brightness"] = Units::rescale<uint8_t, uint8_t>(level, 255, 100);
+  // saturation == kelvin. arg ranges are the same, so won't be able to parse
+  // both unless state is persisted
+  } else if (command == FUT089_SATURATION) {
+    result["saturation"] = constrain(arg, 0, 100);
+  } else if (command == FUT089_MODE) {
+    result["mode"] = arg;
+  } else {
+    result["button_id"] = command;
+    result["argument"] = arg;
+  }
 
   if (! result.containsKey("state")) {
     result["state"] = "ON";