mirror of
https://github.com/Boof2015/astra-mobile.git
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per output device EQ
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Boof2015
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package expo.modules.astraaudioroute
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import android.content.Context
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import android.media.AudioDeviceCallback
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import android.media.AudioDeviceInfo
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import android.media.AudioManager
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import android.media.MediaRouter
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import android.os.Build
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import android.os.Handler
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import android.os.Looper
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import expo.modules.kotlin.exception.Exceptions
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import expo.modules.kotlin.modules.Module
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import expo.modules.kotlin.modules.ModuleDefinition
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class AstraAudioRouteModule : Module() {
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private val mainHandler = Handler(Looper.getMainLooper())
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private var deviceCallback: AudioDeviceCallback? = null
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private var routeCallback: MediaRouter.Callback? = null
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private var listening = false
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override fun definition() = ModuleDefinition {
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Name("AstraAudioRoute")
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Events("onAudioRouteChanged")
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Function("getCurrentRoute") {
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snapshotRoute()
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}
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Function("start") {
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startListening()
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}
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Function("stop") {
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stopListening()
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}
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OnDestroy {
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stopListening()
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}
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}
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private fun requireContext(): Context =
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appContext.reactContext ?: throw Exceptions.ReactContextLost()
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private fun audioManager(): AudioManager =
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requireContext().getSystemService(Context.AUDIO_SERVICE) as AudioManager
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private fun mediaRouter(): MediaRouter =
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requireContext().getSystemService(Context.MEDIA_ROUTER_SERVICE) as MediaRouter
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private fun startListening() {
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if (listening) return
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listening = true
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
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val callback = object : AudioDeviceCallback() {
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override fun onAudioDevicesAdded(addedDevices: Array<out AudioDeviceInfo>) {
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emitCurrentRoute()
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}
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override fun onAudioDevicesRemoved(removedDevices: Array<out AudioDeviceInfo>) {
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emitCurrentRoute()
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}
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}
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deviceCallback = callback
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audioManager().registerAudioDeviceCallback(callback, mainHandler)
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}
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val callback = object : MediaRouter.SimpleCallback() {
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override fun onRouteSelected(router: MediaRouter, type: Int, info: MediaRouter.RouteInfo) {
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emitCurrentRoute()
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}
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override fun onRouteUnselected(router: MediaRouter, type: Int, info: MediaRouter.RouteInfo) {
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emitCurrentRoute()
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}
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override fun onRouteChanged(router: MediaRouter, info: MediaRouter.RouteInfo) {
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emitCurrentRoute()
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}
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override fun onRouteAdded(router: MediaRouter, info: MediaRouter.RouteInfo) {
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emitCurrentRoute()
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}
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override fun onRouteRemoved(router: MediaRouter, info: MediaRouter.RouteInfo) {
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emitCurrentRoute()
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}
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}
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routeCallback = callback
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mediaRouter().addCallback(MediaRouter.ROUTE_TYPE_LIVE_AUDIO, callback)
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emitCurrentRoute()
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}
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private fun stopListening() {
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if (!listening) return
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listening = false
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
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deviceCallback?.let {
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try {
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audioManager().unregisterAudioDeviceCallback(it)
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} catch (_: Throwable) {
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// Treat stop as idempotent.
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}
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}
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}
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deviceCallback = null
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routeCallback?.let {
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try {
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mediaRouter().removeCallback(it)
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} catch (_: Throwable) {
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// Treat stop as idempotent.
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}
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}
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routeCallback = null
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}
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private fun emitCurrentRoute() {
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mainHandler.post {
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sendEvent("onAudioRouteChanged", snapshotRoute())
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}
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}
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private fun snapshotRoute(): Map<String, Any?> {
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val selectedRouteName = selectedRouteName()
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val device = selectOutputDevice()
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val kind = device?.let { kindForType(it.type) } ?: "unknown"
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val label = displayLabel(kind, device, selectedRouteName)
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val key = routeKey(kind, label)
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return mapOf(
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"key" to key,
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"label" to label,
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"kind" to kind,
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"nativeType" to device?.type,
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"nativeId" to device?.id,
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"selectedRouteName" to selectedRouteName,
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"updatedAt" to System.currentTimeMillis(),
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)
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}
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private fun selectedRouteName(): String? =
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try {
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mediaRouter()
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.getSelectedRoute(MediaRouter.ROUTE_TYPE_LIVE_AUDIO)
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?.name
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?.toString()
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?.trim()
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?.ifEmpty { null }
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} catch (_: Throwable) {
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null
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}
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private fun selectOutputDevice(): AudioDeviceInfo? {
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if (Build.VERSION.SDK_INT < Build.VERSION_CODES.M) return null
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val outputs = try {
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audioManager().getDevices(AudioManager.GET_DEVICES_OUTPUTS).filter { it.isSink }
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} catch (_: Throwable) {
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emptyList()
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}
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if (outputs.isEmpty()) return null
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return outputs.firstOrNull { kindForType(it.type) == "bluetooth" }
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?: outputs.firstOrNull { kindForType(it.type) == "wired" }
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?: outputs.firstOrNull { kindForType(it.type) == "usb" }
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?: outputs.firstOrNull { kindForType(it.type) == "hdmi" }
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?: outputs.firstOrNull { kindForType(it.type) == "speaker" }
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?: outputs.first()
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}
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private fun kindForType(type: Int): String =
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
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when (type) {
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AudioDeviceInfo.TYPE_BLUETOOTH_A2DP,
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AudioDeviceInfo.TYPE_BLUETOOTH_SCO -> "bluetooth"
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AudioDeviceInfo.TYPE_WIRED_HEADPHONES,
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AudioDeviceInfo.TYPE_WIRED_HEADSET -> "wired"
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AudioDeviceInfo.TYPE_USB_ACCESSORY,
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AudioDeviceInfo.TYPE_USB_DEVICE,
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AudioDeviceInfo.TYPE_USB_HEADSET -> "usb"
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AudioDeviceInfo.TYPE_HDMI,
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AudioDeviceInfo.TYPE_HDMI_ARC,
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AudioDeviceInfo.TYPE_HDMI_EARC -> "hdmi"
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AudioDeviceInfo.TYPE_BUILTIN_EARPIECE,
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AudioDeviceInfo.TYPE_BUILTIN_SPEAKER -> "speaker"
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else -> "unknown"
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}
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} else {
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"unknown"
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}
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private fun displayLabel(kind: String, device: AudioDeviceInfo?, selectedRouteName: String?): String {
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val productName = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
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device?.productName?.toString()?.trim()?.ifEmpty { null }
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} else {
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null
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}
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val routeName = selectedRouteName?.takeIf { isUsefulRouteLabel(kind, it) }
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val deviceName = productName?.takeIf { isUsefulRouteLabel(kind, it) }
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return routeName ?: deviceName ?: defaultLabel(kind)
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}
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private fun defaultLabel(kind: String): String =
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when (kind) {
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"speaker" -> "Phone speaker"
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"wired" -> "Wired headphones"
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"bluetooth" -> "Bluetooth"
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"usb" -> "USB audio"
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"hdmi" -> "HDMI audio"
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else -> "Unknown output"
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}
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private fun isUsefulRouteLabel(kind: String, label: String): Boolean {
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val normalized = label.trim().lowercase()
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if (normalized.isEmpty()) return false
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val generic = setOf(
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"audio",
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"bluetooth",
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"bluetooth audio",
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"headphones",
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"headset",
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"phone",
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"phone speaker",
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"speaker",
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"speakers",
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"this device",
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"wired headphones",
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)
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if (normalized in generic) return false
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return kind == "bluetooth" || kind == "usb" || kind == "hdmi"
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}
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private fun routeKey(kind: String, label: String): String {
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if (kind == "bluetooth") {
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val slug = slug(label)
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if (slug.isNotEmpty() && slug != "bluetooth" && slug != "bluetooth-audio") {
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return "bluetooth:$slug"
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}
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}
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return when (kind) {
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"speaker" -> "speaker"
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"wired" -> "wired"
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"bluetooth" -> "bluetooth"
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"usb" -> "usb"
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"hdmi" -> "hdmi"
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else -> "unknown"
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}
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}
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private fun slug(value: String): String =
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value
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.trim()
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.lowercase()
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.replace(Regex("[^a-z0-9]+"), "-")
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.trim('-')
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}
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