Basic IKEA tradfri light driver

2 years ago · 958b09e659
6 changed files with 484 additions and 10 deletions
--- a/cmd/bustest/main.go
+++ b/cmd/bustest/main.go
@ -2,10 +2,10 @@ package main

 import (
 	lucifer3 "git.aiterp.net/lucifer3/server"
-	"git.aiterp.net/lucifer3/server/commands"
 	"git.aiterp.net/lucifer3/server/services"
 	"git.aiterp.net/lucifer3/server/services/hue"
 	"git.aiterp.net/lucifer3/server/services/nanoleaf"
+	"git.aiterp.net/lucifer3/server/services/tradfri"
 	"time"
 )

@ -20,12 +20,7 @@ func main() {
 	bus.Join(services.NewEffectEnforcer(resolver, sceneMap))
 	bus.Join(nanoleaf.NewService())
 	bus.Join(hue.NewService())
-
-	bus.RunCommand(commands.ConnectDevice{ID: "hue:10.80.1.5", APIKey: "0-Ch5MKQtYnXrA3b8jvE4408mS3tHo9Vn57Zv8pt"})
+	bus.Join(tradfri.NewService())

 	time.Sleep(time.Hour)
 }
-
-func p[T any](v T) *T {
-	return &v
-}
--- a/commands/device.go
+++ b/commands/device.go
@ -8,10 +8,11 @@ import (

 type PairDevice struct {
 	ID     string `json:"id"`
+	APIKey string `json:"apiKey"`
 }

 func (c PairDevice) CommandDescription() string {
-	return fmt.Sprintf("PairDevice(%s)", c.ID)
+	return fmt.Sprintf("PairDevice(%s, %s)", c.ID, formattools.Asterisks(c.APIKey))
 }

 func (c PairDevice) Matches(driver string) (sub string, ok bool) {
--- a/go.mod
+++ b/go.mod
@ -6,4 +6,33 @@ require github.com/lucasb-eyer/go-colorful v1.2.0

 require github.com/gobwas/glob v0.2.3

-require golang.org/x/sync v0.1.0 // indirect
+require golang.org/x/sync v0.1.0
+
+require (
+	github.com/bocajim/dtls v0.0.0-20190226153416-329cdc841d4f // indirect
+	github.com/dustin/go-coap v0.0.0-20170214053734-ddcc80675fa4 // indirect
+	github.com/eriklupander/dtls v0.0.0-20190304211642-b36018226359 // indirect
+	github.com/eriklupander/tradfri-go v1.0.1 // indirect
+	github.com/fsnotify/fsnotify v1.4.7 // indirect
+	github.com/go-chi/chi v4.0.2+incompatible // indirect
+	github.com/golang/protobuf v1.3.1 // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/konsorten/go-windows-terminal-sequences v1.0.1 // indirect
+	github.com/magiconair/properties v1.8.0 // indirect
+	github.com/mitchellh/mapstructure v1.0.0 // indirect
+	github.com/pelletier/go-toml v1.2.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/sirupsen/logrus v1.9.0 // indirect
+	github.com/spf13/afero v1.1.2 // indirect
+	github.com/spf13/cast v1.2.0 // indirect
+	github.com/spf13/jwalterweatherman v1.0.0 // indirect
+	github.com/spf13/pflag v1.0.2 // indirect
+	github.com/spf13/viper v1.2.1 // indirect
+	golang.org/x/net v0.0.0-20190311183353-d8887717615a // indirect
+	golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect
+	golang.org/x/text v0.3.0 // indirect
+	google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8 // indirect
+	google.golang.org/grpc v1.21.1 // indirect
+	gopkg.in/yaml.v2 v2.2.1 // indirect
+)
--- a/go.sum
+++ b/go.sum
@ -1,6 +1,91 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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+github.com/bocajim/dtls v0.0.0-20190226153416-329cdc841d4f/go.mod h1:htuSw7xe15DPFg5oJtcepjot00bvkhmXsx/b0yvFaKU=
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+github.com/eriklupander/dtls v0.0.0-20190304211642-b36018226359/go.mod h1:9cQp/YAWpoevkrztrrOhFYyeHX8cOvhwHMiwg91o4Eo=
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--- a/services/tradfri/bridge.go
+++ b/services/tradfri/bridge.go
@ -0,0 +1,246 @@
+package tradfri
+
+import (
+	"fmt"
+	lucifer3 "git.aiterp.net/lucifer3/server"
+	"git.aiterp.net/lucifer3/server/device"
+	"git.aiterp.net/lucifer3/server/events"
+	"git.aiterp.net/lucifer3/server/internal/color"
+	"git.aiterp.net/lucifer3/server/internal/gentools"
+	"github.com/eriklupander/tradfri-go/tradfri"
+	"math"
+	"math/rand"
+	"strings"
+	"sync"
+	"time"
+)
+
+type Bridge struct {
+	mx     sync.Mutex
+	client *tradfri.Client
+
+	id             string
+	newIP          string
+	newCredentials string
+
+	internalMap map[string]int
+	nameMap     map[string]string
+	stateMap    map[string]device.State
+}
+
+func connect(ip, credentials string) (bridge *Bridge, retErr error) {
+	bridge = &Bridge{}
+	defer func() {
+		retErr = catchPanic()
+	}()
+
+	if !strings.Contains(ip, ":") {
+		ip = ip + ":5684"
+	}
+
+	parts := strings.Split(credentials, ":")
+	if len(parts) == 1 {
+		bridge.client = tradfri.NewTradfriClient(ip, "Client_identity", parts[0])
+
+		clientID := fmt.Sprintf("Lucifer4_%d", rand.Intn(10000))
+
+		token, err := bridge.client.AuthExchange(clientID)
+		if err != nil {
+			return nil, err
+		}
+
+		bridge.newCredentials = clientID + ":" + token.Token
+	} else {
+		bridge.client = tradfri.NewTradfriClient(ip, parts[0], parts[1])
+
+		bridge.newCredentials = parts[0] + ":" + parts[1]
+	}
+
+	bridge.newIP = ip
+	bridge.id = fmt.Sprintf("tradfri:%s", ip)
+
+	return
+}
+
+func (b *Bridge) listen(bus *lucifer3.EventBus) {
+	b.internalMap = make(map[string]int, 16)
+	b.nameMap = make(map[string]string, 16)
+	b.stateMap = make(map[string]device.State, 16)
+
+	go func() {
+		defer b.mx.Unlock()
+
+		for {
+			b.mx.Lock()
+
+			devices, err := b.client.ListDevices()
+			if err != nil {
+				bus.RunEvent(events.DeviceFailed{
+					ID:    b.id,
+					Error: "Unable to fetch IKEA devices",
+				})
+				return
+			}
+
+			for _, ikeaDevice := range devices {
+				id := fmt.Sprintf("%s:%d", b.id, ikeaDevice.DeviceId)
+
+				lc := ikeaDevice.LightControl
+				if len(lc) == 0 {
+					continue
+				}
+
+				currState := device.State{
+					Power:     gentools.Ptr(lc[0].Power > 0),
+					Intensity: gentools.Ptr(float64(lc[0].Dimmer) / 254),
+					Color: &color.Color{
+						XY: &color.XY{
+							X: float64(lc[0].CIE_1931_X) / 65535,
+							Y: float64(lc[0].CIE_1931_Y) / 65535,
+						},
+					},
+				}
+
+				if len(b.nameMap[id]) == 0 {
+					b.internalMap[id] = ikeaDevice.DeviceId
+					b.nameMap[id] = ikeaDevice.Name
+					b.stateMap[id] = currState
+
+					bus.RunEvent(events.DeviceReady{ID: id})
+					bus.RunEvent(events.HardwareMetadata{ID: id})
+					bus.RunEvent(events.HardwareState{
+						ID:           id,
+						InternalName: ikeaDevice.Name,
+						SupportFlags: defaultSF,
+						ColorFlags:   defaultCF,
+						State:        b.stateMap[id],
+					})
+				}
+
+				b.refreshDevice(id, bus)
+			}
+
+			b.mx.Unlock()
+			time.Sleep(10 * time.Second)
+		}
+	}()
+}
+
+func (b *Bridge) writeState(id string, state device.State, bus *lucifer3.EventBus) {
+	b.stateMap[id] = state
+	b.refreshDevice(id, bus)
+}
+
+func (b *Bridge) refreshDevice(id string, bus *lucifer3.EventBus) {
+	ikeaDevice, err := b.client.GetDevice(b.internalMap[id])
+	if err != nil {
+		bus.RunEvent(events.DeviceFailed{
+			ID:    id,
+			Error: "Unable to fetch IKEA device",
+		})
+		return
+	}
+
+	changed := false
+
+	if len(ikeaDevice.LightControl) > 0 {
+		ikeaState := ikeaDevice.LightControl[0]
+		luciferState := b.stateMap[id]
+
+		currPower := ikeaState.Power > 0
+		currIntensity := float64(ikeaState.Dimmer) / 254
+		currX := float64(ikeaState.CIE_1931_X) / 65535
+		currY := float64(ikeaState.CIE_1931_Y) / 65535
+
+		if luciferState.Intensity != nil {
+			newIntensity := *luciferState.Intensity
+			diffIntensity := math.Abs(newIntensity - currIntensity)
+
+			if diffIntensity >= 0.01 {
+				changed = true
+
+				intensityInt := int(math.Round(newIntensity * 254))
+
+				_, err := b.client.PutDeviceDimming(ikeaDevice.DeviceId, intensityInt)
+				if err != nil {
+					bus.RunEvent(events.DeviceFailed{
+						ID:    id,
+						Error: "Failed to update intensity state",
+					})
+					return
+				}
+			}
+		}
+
+		if luciferState.Color != nil && luciferState.Color.XY != nil {
+			newX := luciferState.Color.XY.X
+			newY := luciferState.Color.XY.Y
+			diffX := math.Abs(newX - currX)
+			diffY := math.Abs(newY - currY)
+
+			if diffX >= 0.0001 || diffY >= 0.0001 {
+				changed = true
+
+				xInt := int(math.Round(newX * 65535))
+				yInt := int(math.Round(newY * 65535))
+
+				_, err := b.client.PutDeviceColor(ikeaDevice.DeviceId, xInt, yInt)
+				if err != nil {
+					bus.RunEvent(events.DeviceFailed{
+						ID:    id,
+						Error: "Failed to update color state",
+					})
+					return
+				}
+			}
+		}
+
+		if luciferState.Power != nil {
+			newPower := *luciferState.Power
+			diffPower := newPower != currPower
+
+			if diffPower {
+				changed = true
+
+				powerInt := 0
+				if newPower {
+					powerInt = 1
+				}
+
+				_, err := b.client.PutDevicePower(ikeaDevice.DeviceId, powerInt)
+				if err != nil {
+					bus.RunEvent(events.DeviceFailed{
+						ID:    id,
+						Error: "Failed to update power state",
+					})
+					return
+				}
+			}
+		}
+
+		if changed {
+			bus.RunEvent(events.HardwareState{
+				ID:           id,
+				InternalName: ikeaDevice.Name,
+				SupportFlags: defaultSF,
+				ColorFlags:   defaultCF,
+				State:        luciferState,
+			})
+		}
+	}
+}
+
+const defaultSF = device.SFlagPower | device.SFlagIntensity | device.SFlagColor
+const defaultCF = device.CFlagXY
+
+func catchPanic(mutexes ...sync.Locker) (retErr error) {
+	if err, ok := recover().(error); ok {
+		retErr = err
+	}
+
+	for _, mx := range mutexes {
+		mx.Unlock()
+	}
+
+	return
+}
--- a/services/tradfri/service.go
+++ b/services/tradfri/service.go
@ -0,0 +1,118 @@
+package tradfri
+
+import (
+	"fmt"
+	lucifer3 "git.aiterp.net/lucifer3/server"
+	"git.aiterp.net/lucifer3/server/commands"
+	"git.aiterp.net/lucifer3/server/events"
+	"github.com/sirupsen/logrus"
+	"io"
+	"strings"
+	"sync"
+)
+
+func NewService() lucifer3.ActiveService {
+	logrus.StandardLogger().Out = io.Discard
+	logrus.StandardLogger().ExitFunc = func(i int) {
+		panic(fmt.Sprintf("tradfri: exit code %d", i))
+	}
+
+	return &service{
+		bridges: make(map[string]*Bridge, 4),
+	}
+}
+
+type service struct {
+	mu sync.Mutex
+
+	bridges map[string]*Bridge
+}
+
+func (s *service) Active() bool {
+	return true
+}
+
+func (s *service) HandleEvent(*lucifer3.EventBus, lucifer3.Event) {
+	// NOP
+}
+
+func (s *service) HandleCommand(bus *lucifer3.EventBus, command lucifer3.Command) {
+	defer s.mu.Unlock()
+	s.mu.Lock()
+
+	switch command := command.(type) {
+	case commands.PairDevice:
+		if sub, ok := command.Matches("tradfri"); ok {
+			bridge, err := connect(sub, command.APIKey)
+			if err != nil {
+				bus.RunEvent(events.DeviceFailed{
+					ID:    command.ID,
+					Error: err.Error(),
+				})
+				return
+			}
+
+			s.bridges[bridge.id] = bridge
+
+			bus.RunEvent(events.DeviceAccepted{
+				ID:     bridge.id,
+				APIKey: bridge.newCredentials,
+			})
+		}
+	case commands.SearchDevices:
+		bus.RunEvent(events.DeviceFailed{
+			ID:    command.ID,
+			Error: "Please follow instructions in IKEA app; they will appear here after pairing.",
+		})
+	case commands.SetState:
+		if _, ok := command.Matches("tradfri"); ok {
+			bridge, ok := s.findBridge(command.ID)
+			if !ok {
+				return
+			}
+
+			bridge.writeState(command.ID, command.State, bus)
+		}
+	case commands.SetStateBatch:
+		for id, state := range command {
+			if strings.HasPrefix(id, "tradfri") {
+				bridge, ok := s.findBridge(id)
+				if !ok {
+					return
+				}
+
+				bridge.writeState(id, state, bus)
+			}
+		}
+	case commands.ConnectDevice:
+		if sub, ok := command.Matches("tradfri"); ok {
+			if s.bridges[command.ID] == nil {
+				bridge, err := connect(sub, command.APIKey)
+				if err != nil {
+					bus.RunEvent(events.DeviceFailed{
+						ID:    command.ID,
+						Error: err.Error(),
+					})
+					return
+				}
+
+				s.bridges[command.ID] = bridge
+			}
+
+			bus.RunEvent(events.DeviceConnected{Prefix: s.bridges[command.ID].id})
+			s.bridges[command.ID].listen(bus)
+		}
+	}
+}
+
+func (s *service) findBridge(id string) (*Bridge, bool) {
+	bits := strings.Split(id, ":")
+	for i := 2; i < len(bits); i++ {
+		prefix := strings.Join(bits[0:i], ":")
+		if s.bridges[prefix] != nil {
+			return s.bridges[prefix], true
+		}
+	}
+
+	return nil, false
+}