Basic IKEA tradfri light driver
This commit is contained in:
Stian Fredrik Aune
@@ -0,0 +1,246 @@
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package tradfri
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import (
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"fmt"
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lucifer3 "git.aiterp.net/lucifer3/server"
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"git.aiterp.net/lucifer3/server/device"
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"git.aiterp.net/lucifer3/server/events"
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"git.aiterp.net/lucifer3/server/internal/color"
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"git.aiterp.net/lucifer3/server/internal/gentools"
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"github.com/eriklupander/tradfri-go/tradfri"
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"math"
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"math/rand"
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"strings"
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"sync"
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"time"
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)
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type Bridge struct {
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mx sync.Mutex
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client *tradfri.Client
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id string
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newIP string
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newCredentials string
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internalMap map[string]int
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nameMap map[string]string
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stateMap map[string]device.State
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}
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func connect(ip, credentials string) (bridge *Bridge, retErr error) {
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bridge = &Bridge{}
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defer func() {
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retErr = catchPanic()
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}()
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if !strings.Contains(ip, ":") {
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ip = ip + ":5684"
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}
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parts := strings.Split(credentials, ":")
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if len(parts) == 1 {
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bridge.client = tradfri.NewTradfriClient(ip, "Client_identity", parts[0])
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clientID := fmt.Sprintf("Lucifer4_%d", rand.Intn(10000))
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token, err := bridge.client.AuthExchange(clientID)
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if err != nil {
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return nil, err
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}
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bridge.newCredentials = clientID + ":" + token.Token
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} else {
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bridge.client = tradfri.NewTradfriClient(ip, parts[0], parts[1])
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bridge.newCredentials = parts[0] + ":" + parts[1]
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}
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bridge.newIP = ip
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bridge.id = fmt.Sprintf("tradfri:%s", ip)
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return
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}
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func (b *Bridge) listen(bus *lucifer3.EventBus) {
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b.internalMap = make(map[string]int, 16)
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b.nameMap = make(map[string]string, 16)
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b.stateMap = make(map[string]device.State, 16)
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go func() {
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defer b.mx.Unlock()
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for {
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b.mx.Lock()
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devices, err := b.client.ListDevices()
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if err != nil {
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bus.RunEvent(events.DeviceFailed{
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ID: b.id,
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Error: "Unable to fetch IKEA devices",
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})
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return
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}
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for _, ikeaDevice := range devices {
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id := fmt.Sprintf("%s:%d", b.id, ikeaDevice.DeviceId)
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lc := ikeaDevice.LightControl
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if len(lc) == 0 {
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continue
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}
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currState := device.State{
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Power: gentools.Ptr(lc[0].Power > 0),
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Intensity: gentools.Ptr(float64(lc[0].Dimmer) / 254),
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Color: &color.Color{
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XY: &color.XY{
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X: float64(lc[0].CIE_1931_X) / 65535,
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Y: float64(lc[0].CIE_1931_Y) / 65535,
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},
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},
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}
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if len(b.nameMap[id]) == 0 {
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b.internalMap[id] = ikeaDevice.DeviceId
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b.nameMap[id] = ikeaDevice.Name
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b.stateMap[id] = currState
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bus.RunEvent(events.DeviceReady{ID: id})
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bus.RunEvent(events.HardwareMetadata{ID: id})
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bus.RunEvent(events.HardwareState{
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ID: id,
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InternalName: ikeaDevice.Name,
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SupportFlags: defaultSF,
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ColorFlags: defaultCF,
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State: b.stateMap[id],
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})
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}
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b.refreshDevice(id, bus)
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}
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b.mx.Unlock()
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time.Sleep(10 * time.Second)
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}
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}()
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}
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func (b *Bridge) writeState(id string, state device.State, bus *lucifer3.EventBus) {
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b.stateMap[id] = state
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b.refreshDevice(id, bus)
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}
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func (b *Bridge) refreshDevice(id string, bus *lucifer3.EventBus) {
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ikeaDevice, err := b.client.GetDevice(b.internalMap[id])
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if err != nil {
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bus.RunEvent(events.DeviceFailed{
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ID: id,
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Error: "Unable to fetch IKEA device",
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})
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return
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}
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changed := false
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if len(ikeaDevice.LightControl) > 0 {
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ikeaState := ikeaDevice.LightControl[0]
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luciferState := b.stateMap[id]
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currPower := ikeaState.Power > 0
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currIntensity := float64(ikeaState.Dimmer) / 254
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currX := float64(ikeaState.CIE_1931_X) / 65535
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currY := float64(ikeaState.CIE_1931_Y) / 65535
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if luciferState.Intensity != nil {
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newIntensity := *luciferState.Intensity
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diffIntensity := math.Abs(newIntensity - currIntensity)
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if diffIntensity >= 0.01 {
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changed = true
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intensityInt := int(math.Round(newIntensity * 254))
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_, err := b.client.PutDeviceDimming(ikeaDevice.DeviceId, intensityInt)
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if err != nil {
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bus.RunEvent(events.DeviceFailed{
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ID: id,
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Error: "Failed to update intensity state",
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})
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return
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}
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}
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}
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if luciferState.Color != nil && luciferState.Color.XY != nil {
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newX := luciferState.Color.XY.X
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newY := luciferState.Color.XY.Y
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diffX := math.Abs(newX - currX)
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diffY := math.Abs(newY - currY)
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if diffX >= 0.0001 || diffY >= 0.0001 {
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changed = true
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xInt := int(math.Round(newX * 65535))
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yInt := int(math.Round(newY * 65535))
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_, err := b.client.PutDeviceColor(ikeaDevice.DeviceId, xInt, yInt)
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if err != nil {
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bus.RunEvent(events.DeviceFailed{
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ID: id,
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Error: "Failed to update color state",
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})
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return
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}
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}
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}
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if luciferState.Power != nil {
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newPower := *luciferState.Power
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diffPower := newPower != currPower
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if diffPower {
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changed = true
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powerInt := 0
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if newPower {
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powerInt = 1
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}
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_, err := b.client.PutDevicePower(ikeaDevice.DeviceId, powerInt)
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if err != nil {
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bus.RunEvent(events.DeviceFailed{
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ID: id,
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Error: "Failed to update power state",
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})
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return
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}
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}
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}
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if changed {
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bus.RunEvent(events.HardwareState{
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ID: id,
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InternalName: ikeaDevice.Name,
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SupportFlags: defaultSF,
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ColorFlags: defaultCF,
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State: luciferState,
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})
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}
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}
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}
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const defaultSF = device.SFlagPower | device.SFlagIntensity | device.SFlagColor
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const defaultCF = device.CFlagXY
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func catchPanic(mutexes ...sync.Locker) (retErr error) {
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if err, ok := recover().(error); ok {
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retErr = err
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}
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for _, mx := range mutexes {
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mx.Unlock()
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}
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return
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}
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@@ -0,0 +1,118 @@
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package tradfri
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import (
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"fmt"
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lucifer3 "git.aiterp.net/lucifer3/server"
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"git.aiterp.net/lucifer3/server/commands"
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"git.aiterp.net/lucifer3/server/events"
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"github.com/sirupsen/logrus"
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"io"
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"strings"
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"sync"
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)
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func NewService() lucifer3.ActiveService {
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logrus.StandardLogger().Out = io.Discard
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logrus.StandardLogger().ExitFunc = func(i int) {
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panic(fmt.Sprintf("tradfri: exit code %d", i))
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}
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return &service{
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bridges: make(map[string]*Bridge, 4),
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}
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}
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type service struct {
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mu sync.Mutex
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bridges map[string]*Bridge
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}
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func (s *service) Active() bool {
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return true
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}
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func (s *service) HandleEvent(*lucifer3.EventBus, lucifer3.Event) {
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// NOP
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}
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func (s *service) HandleCommand(bus *lucifer3.EventBus, command lucifer3.Command) {
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defer s.mu.Unlock()
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s.mu.Lock()
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switch command := command.(type) {
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case commands.PairDevice:
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if sub, ok := command.Matches("tradfri"); ok {
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bridge, err := connect(sub, command.APIKey)
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if err != nil {
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bus.RunEvent(events.DeviceFailed{
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ID: command.ID,
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Error: err.Error(),
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})
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return
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}
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s.bridges[bridge.id] = bridge
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bus.RunEvent(events.DeviceAccepted{
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ID: bridge.id,
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APIKey: bridge.newCredentials,
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})
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}
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case commands.SearchDevices:
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bus.RunEvent(events.DeviceFailed{
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ID: command.ID,
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Error: "Please follow instructions in IKEA app; they will appear here after pairing.",
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})
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case commands.SetState:
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if _, ok := command.Matches("tradfri"); ok {
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bridge, ok := s.findBridge(command.ID)
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if !ok {
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return
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}
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bridge.writeState(command.ID, command.State, bus)
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}
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case commands.SetStateBatch:
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for id, state := range command {
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if strings.HasPrefix(id, "tradfri") {
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bridge, ok := s.findBridge(id)
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if !ok {
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return
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}
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bridge.writeState(id, state, bus)
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}
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}
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case commands.ConnectDevice:
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if sub, ok := command.Matches("tradfri"); ok {
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if s.bridges[command.ID] == nil {
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bridge, err := connect(sub, command.APIKey)
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if err != nil {
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bus.RunEvent(events.DeviceFailed{
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ID: command.ID,
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Error: err.Error(),
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})
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return
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}
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s.bridges[command.ID] = bridge
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}
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bus.RunEvent(events.DeviceConnected{Prefix: s.bridges[command.ID].id})
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s.bridges[command.ID].listen(bus)
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}
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}
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}
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func (s *service) findBridge(id string) (*Bridge, bool) {
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bits := strings.Split(id, ":")
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for i := 2; i < len(bits); i++ {
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prefix := strings.Join(bits[0:i], ":")
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if s.bridges[prefix] != nil {
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return s.bridges[prefix], true
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}
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}
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return nil, false
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}
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