Squashed commit of the following:

commit 62e7cb88f4
Author: Gisle Aune <dev@gisle.me>
Date:   Mon Feb 28 22:52:06 2022 +0100

    refactor color system to be separate from models, also move errors out of models.

commit df865574bf
Author: Gisle Aune <dev@gisle.me>
Date:   Mon Feb 21 19:27:42 2022 +0100

    rework color system and make it work with drivers.

internal/drivers/nanoleaf/bridge.go

@@ -5,12 +5,13 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"git.aiterp.net/lucifer/new-server/internal/color"
+	"git.aiterp.net/lucifer/new-server/internal/lerrors"
 	"git.aiterp.net/lucifer/new-server/models"
 	"github.com/lucasb-eyer/go-colorful"
 	"io"
 	"io/ioutil"
 	"log"
-	"math"
 	"net"
 	"net/http"
 	"strconv"
@@ -31,11 +32,12 @@ type bridge struct {
 func (b *bridge) Devices() []models.Device {
 	results := make([]models.Device, 0, len(b.panels))
 	for i, panel := range b.panels {
+		// Find normalized RGB and intensity
 		red := float64(panel.ColorRGBA[0]) / 255.0
 		green := float64(panel.ColorRGBA[1]) / 255.0
 		blue := float64(panel.ColorRGBA[2]) / 255.0
-
-		hue, sat, value := colorful.LinearRgb(red, green, blue).Hsv()
+		hue, sat, value := colorful.Color{R: red, G: green, B: blue}.Hsv()
+		rgb := colorful.Hsv(hue, sat, 1)
 
 		shapeType, shapeTypeOK := shapeTypeMap[panel.ShapeType]
 		if !shapeTypeOK {
@@ -70,10 +72,11 @@ func (b *bridge) Devices() []models.Device {
 			UserProperties: nil,
 			State: models.DeviceState{
 				Power: panel.ColorRGBA[3] == 0,
-				Color: models.ColorValue{
-					Hue:        math.Mod(hue, 360),
-					Saturation: sat,
-				},
+				Color: color.Color{RGB: &color.RGB{
+					Red:   rgb.R,
+					Green: rgb.G,
+					Blue:  rgb.B,
+				}},
 				Intensity:   value,
 				Temperature: 0,
 			},
@@ -139,9 +142,9 @@ func (b *bridge) Overview(ctx context.Context) (*Overview, error) {
 
 	switch res.StatusCode {
 	case 400, 403, 500, 503:
-		return nil, models.ErrUnexpectedResponse
+		return nil, lerrors.ErrUnexpectedResponse
 	case 401:
-		return nil, models.ErrIncorrectToken
+		return nil, lerrors.ErrIncorrectToken
 	}
 
 	overview := Overview{}
@@ -172,9 +175,20 @@ func (b *bridge) Update(devices []models.Device) {
 		for _, panel := range b.panels {
 			if panel.ID == uint16(id) {
 				if device.State.Power {
-					color := colorful.Hsv(device.State.Color.Hue, device.State.Color.Saturation, device.State.Intensity)
+					rgbColor, ok := device.State.Color.ToRGB()
+					if !ok {
+						newColor := [4]byte{255, 255, 255, 255}
+						if newColor != panel.ColorRGBA {
+							panel.update(newColor, time.Now().Add(time.Millisecond*220))
+						}
 
-					red, green, blue := color.RGB255()
+						continue
+					}
+
+					rgb := rgbColor.RGB.AtIntensity(device.State.Intensity)
+					red := byte(rgb.Red * 255.9)
+					green := byte(rgb.Green * 255.9)
+					blue := byte(rgb.Blue * 255.9)
 					newColor := [4]byte{red, green, blue, 255}
 					if newColor != panel.ColorRGBA {
 						panel.update(newColor, time.Now().Add(time.Millisecond*220))
@@ -321,7 +335,7 @@ func (b *bridge) updateEffect(ctx context.Context) error {
 	defer res.Body.Close()
 
 	if res.StatusCode != 204 {
-		return models.ErrUnexpectedResponse
+		return lerrors.ErrUnexpectedResponse
 	}
 
 	b.mu.Lock()

internal/drivers/nanoleaf/driver.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"git.aiterp.net/lucifer/new-server/internal/lerrors"
 	"git.aiterp.net/lucifer/new-server/models"
 	"net/http"
 	"sync"
@@ -30,7 +31,7 @@ func (d *Driver) SearchBridge(ctx context.Context, address, _ string, dryRun boo
 		return nil, err
 	}
 	if deviceInfo.ModelNumber == "" {
-		return nil, models.ErrUnexpectedResponse
+		return nil, lerrors.ErrUnexpectedResponse
 	}
 
 	token := ""
@@ -47,7 +48,7 @@ func (d *Driver) SearchBridge(ctx context.Context, address, _ string, dryRun boo
 		defer res.Body.Close()
 
 		if res.StatusCode != 200 {
-			return nil, models.ErrBridgeSearchFailed
+			return nil, lerrors.ErrBridgeSearchFailed
 		}
 
 		tokenResponse := TokenResponse{}