Fix setMode

Done w/ setMode. This was tricky because setting color_mode doesn't
work.

xaal.go

@@ -5,7 +5,6 @@ import (
 	"log/slog"
 	"math"
 
-	"github.com/davecgh/go-spew/spew"
 	"github.com/lucasb-eyer/go-colorful"
 	"gitlab.imt-atlantique.fr/xaal/code/go/core/schemas"
 	"gitlab.imt-atlantique.fr/xaal/code/go/core/uuid"
@@ -242,7 +241,7 @@ func NewLamp(addr uuid.UUID, zDev *Z2MDevice, expose *Expose) XAALDeviceInterfac
 		dev.AddMethod("set_brightness", dev.setBrightness)
 	}
 	if expose.GetFeature("color_temp") != nil {
-		// All bulb w/ color temp are dimmer
+		dev.DevType = "lamp.dimmer"
 		dev.AddAttribute("white_temperature", 0)
 		dev.AddMethod("set_white_temperature", dev.setWhiteTemperature)
 	}
@@ -254,11 +253,18 @@ func NewLamp(addr uuid.UUID, zDev *Z2MDevice, expose *Expose) XAALDeviceInterfac
 		dev.AddMethod("set_hsv", dev.setHSV)
 		dev.AddMethod("set_mode", dev.setMode)
 	}
-
 	dev.setup(zDev)
 	return dev
 }
 
+func (dev *Lamp) getMode() string {
+	mode := dev.GetAttribute("mode")
+	if mode != nil {
+		return mode.Value.(string)
+	}
+	return "white"
+}
+
 func (dev *Lamp) update(payload map[string]interface{}) {
 	// state
 	state, exists := payload["state"].(string)
@@ -271,12 +277,8 @@ func (dev *Lamp) update(payload map[string]interface{}) {
 			light.SetValue(false)
 		}
 	}
-	// brightness
-	brightness, exists := payload["brightness"].(float64)
-	if exists {
-		brightness = brightness / 255 * 100
-		dev.GetAttribute("brightness").SetValue(int(brightness))
-	}
+
+	// color_mode
 	color_mode, exists := payload["color_mode"].(string)
 	if exists {
 		mode := dev.GetAttribute("mode")
@@ -291,26 +293,39 @@ func (dev *Lamp) update(payload map[string]interface{}) {
 		}
 	}
 
-	// color
+	// brightness
+	brightness, exists := payload["brightness"].(float64)
+	if exists {
+		brightness = brightness / 255 * 100
+		dev.GetAttribute("brightness").SetValue(int(brightness))
+	}
+
+	// color_temp
+	if dev.getMode() == "white" {
+		// color_temp change when we are in color mode (looks like a z2m bug)
+		color_temp, exists := payload["color_temp"].(float64)
+		if exists {
+			// Mired = 1,000,000 / Temperature in Kelvin
+			color_temp = 1000000 / color_temp
+			dev.GetAttribute("white_temperature").SetValue(int(color_temp))
+		}
+	}
+
+	// colors
+	if dev.getMode() == "color" {
 		color, exists := payload["color"].(map[string]interface{})
 		if exists {
 			x, _ := color["x"].(float64)
 			y, _ := color["y"].(float64)
 			brigthness, _ := payload["brightness"].(float64)
 			value := xyToColor(x, y, brigthness)
-		slog.Warn("color", "color", value.Hex(), "x", x, "y", y, "tmp", brigthness)
+			slog.Debug("color", "color", value.Hex(), "x", x, "y", y, "tmp", brigthness)
 			hue, sat, val := value.Hsv()
 			hue = roundToDecimal(hue, 1)
 			sat = roundToDecimal(sat, 3)
 			val = roundToDecimal(val, 3)
 			dev.GetAttribute("hsv").SetValue([]float64{hue, sat, val})
 		}
-	// color_temp
-	color_temp, exists := payload["color_temp"].(float64)
-	if exists {
-		// Mired = 1,000,000 / Temperature in Kelvin
-		color_temp = 1000000 / color_temp
-		dev.GetAttribute("white_temperature").SetValue(int(color_temp))
 	}
 }
 
@@ -361,7 +376,28 @@ func (dev *Lamp) setHSV(body xaal.MessageBody) *xaal.MessageBody {
 }
 
 func (dev *Lamp) setMode(body xaal.MessageBody) *xaal.MessageBody {
-	spew.Dump(body)
+	value, exist := body["mode"].(string)
+	if exist {
+		// for a unknown reason, we are unable to set the color_mode
+		// z2m doesn't give an error, but the color_mode doesn't change
+		// so we set old color or temperature
+		switch value {
+		case "color":
+			// dev.Z2MDevice.Set(`{"color_mode": "xy"}`)
+			hsv := dev.GetAttribute("hsv").Value.([]float64)
+			color := colorful.Hsv(hsv[0], hsv[1], hsv[2])
+			dev.Z2MDevice.Set(fmt.Sprintf(`{"color": { "hex": "%s" }}`, color.Hex()))
+		case "white":
+			// dev.Z2MDevice.Set(`{"color_mode": "color_temp"}`)
+			value := dev.GetAttribute("white_temperature").Value.(int)
+			// if booted in color mode, while_temperature is 0 => divide crash
+			if value == 0 {
+				value = 3000
+			}
+			value = 1000000 / value
+			dev.Z2MDevice.Set(fmt.Sprintf(`{"color_temp": %d}`, value))
+		}
+	}
 	return nil
 }