AlexDev_
3b033a025b
* fix(notification): disconnect idle background socket * fix(notification): clear rejected prompt state
287 lines
11 KiB
Kotlin
287 lines
11 KiB
Kotlin
package com.m57.hermescontrol.notification
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import android.app.Notification
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import android.app.NotificationChannel
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import android.app.NotificationManager
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import android.app.PendingIntent
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import android.app.Service
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import android.content.Context
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import android.content.Intent
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import android.os.Build
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import android.os.IBinder
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import androidx.core.app.NotificationCompat
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import androidx.core.app.RemoteInput
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import com.m57.hermescontrol.MainActivity
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import com.m57.hermescontrol.R
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import com.m57.hermescontrol.data.local.AuthManager
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import com.m57.hermescontrol.data.session.ActiveSessionHolder
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import com.m57.hermescontrol.data.ws.HermesWsClient
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import com.m57.hermescontrol.data.ws.WsEvent
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import kotlinx.coroutines.CoroutineScope
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.Job
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import kotlinx.coroutines.SupervisorJob
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import kotlinx.coroutines.cancel
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import kotlinx.coroutines.delay
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import kotlinx.coroutines.flow.collect
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import kotlinx.coroutines.launch
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import java.util.concurrent.atomic.AtomicBoolean
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/**
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* Foreground service that keeps the WebSocket connection alive while the app
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* is backgrounded and posts a notification when a new assistant reply
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* completes (MessageComplete event) while the app is not in the foreground.
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*
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* FGS type: `remoteMessaging` — indefinite listener that maintains a
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* long-lived connection to a remote server for receiving messages. This is
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* the correct type per Android 14+ policy (dataSync has a time budget and
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* is intended for finite sync operations).
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*
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* Channel importance: IMPORTANCE_MIN — the ongoing notification is a
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* persistent indicator, not an alert. PRIORITY_MIN matches.
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* The separate `hermes_chat` channel uses IMPORTANCE_HIGH for actual
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* message notifications, which is correct.
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*
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* Lifecycle:
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* - Started by [NotificationHelper.start] when the app goes to the
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* background while a reply is still pending (the user sent a message or
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* replied from a notification and the agent has not finished yet).
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* [NotificationHelper.start] is a no-op when nothing is pending, so the
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* service — and its mandatory persistent notification — only exists
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* while the user is actually waiting for a reply (issue #794).
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* - Stopped by [NotificationHelper.stop] when the app returns to the
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* foreground (called from MainActivity.onStart), or by the
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* service itself once the pending reply completes in the background
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* (the reply notification replaces the persistent "waiting" one).
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*
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* The service collects [WsEvent]s from [HermesWsClient] — the same stream
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* the ChatViewModel collects — and watches for [WsEvent.MessageComplete]
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* events that indicate the agent has finished replying.
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*/
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class ChatNotificationService : Service() {
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companion object {
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internal const val SERVICE_CHANNEL_ID = "hermes_service"
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internal const val CHAT_CHANNEL_ID = "hermes_chat"
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internal const val NOTIFICATION_ID = 1
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internal const val PENDING_NOTIFICATION_ID = 2
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private val isAppInForeground = AtomicBoolean(false)
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fun setAppForeground(foreground: Boolean) {
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isAppInForeground.set(foreground)
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}
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fun isAppInForeground(): Boolean = isAppInForeground.get()
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}
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private val serviceScope = CoroutineScope(Dispatchers.IO + SupervisorJob())
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private var eventCollector: Job? = null
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override fun onCreate() {
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super.onCreate()
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createNotificationChannels()
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startForeground(NOTIFICATION_ID, buildForegroundNotification(getString(R.string.notif_waiting_replies)))
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startEventCollection()
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}
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private fun startEventCollection() {
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eventCollector =
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serviceScope.launch {
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HermesWsClient.events.collect { event ->
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if (!isAppInForeground.get()) {
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launch {
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delay(500)
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if (!isAppInForeground.get()) {
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when (event) {
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is WsEvent.MessageComplete -> {
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val preview =
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event.text
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.take(100)
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.replace("\n", " ")
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.ifBlank { getString(R.string.notif_new_message) }
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showReplyNotification(
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preview,
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event.storedSessionId
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?: ActiveSessionHolder.resolveStoredSessionId(event.sessionId),
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)
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// The wait is over — retire the foreground
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// service. The reply notification above
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// replaces the persistent "waiting" one,
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// and the pendingReply flag is cleared by
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// HermesWsClient's own collector, so the
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// service is not restarted on the next
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// ON_STOP (issue #794).
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stopForeground(STOP_FOREGROUND_REMOVE)
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stopSelf()
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}
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is WsEvent.ClarifyRequest -> {
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showReplyNotification(getString(R.string.notif_clarification_needed), null)
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}
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else -> {}
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}
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}
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}
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}
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}
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}
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}
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private fun showReplyNotification(
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text: String,
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sessionId: String?,
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) {
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val builder =
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NotificationCompat
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.Builder(this, CHAT_CHANNEL_ID)
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.setSmallIcon(R.drawable.ic_notification)
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.setContentTitle(getString(R.string.notif_title))
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.setContentText(text)
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.setStyle(NotificationCompat.BigTextStyle().bigText(text))
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.setPriority(NotificationCompat.PRIORITY_HIGH)
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.setVisibility(NotificationCompat.VISIBILITY_PRIVATE)
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.setAutoCancel(true)
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.setContentIntent(buildContentIntent(sessionId))
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if (!sessionId.isNullOrBlank()) {
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val replyLabel = getString(R.string.notif_reply_placeholder)
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val remoteInput =
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RemoteInput
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.Builder(NotificationReplyReceiver.KEY_TEXT_REPLY)
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.setLabel(replyLabel)
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.build()
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val replyIntent =
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Intent(this, NotificationReplyReceiver::class.java).apply {
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action = "$packageName.ACTION_NOTIFICATION_REPLY"
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setPackage(packageName)
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putExtra(NotificationReplyReceiver.EXTRA_SESSION_ID, sessionId)
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}
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val replyPendingIntent =
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PendingIntent.getBroadcast(
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this,
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sessionId.hashCode(),
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replyIntent,
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PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_ONE_SHOT,
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)
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val action =
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NotificationCompat.Action
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.Builder(
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R.drawable.ic_notification,
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getString(R.string.action_reply),
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replyPendingIntent,
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).addRemoteInput(remoteInput)
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.build()
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builder.addAction(action)
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}
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val manager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
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manager.notify(PENDING_NOTIFICATION_ID, builder.build())
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}
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private fun buildContentIntent(sessionId: String?): PendingIntent {
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val intent =
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Intent(this, MainActivity::class.java).apply {
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action = MainActivity.ACTION_OPEN_CHAT_FROM_NOTIFICATION
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flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TOP
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}
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if (!sessionId.isNullOrBlank()) {
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intent.putExtra(NotificationReplyReceiver.EXTRA_SESSION_ID, sessionId)
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}
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return PendingIntent.getActivity(
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this,
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sessionId?.hashCode() ?: 0,
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intent,
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PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_ONE_SHOT,
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)
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}
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private fun buildForegroundNotification(text: String): Notification =
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NotificationCompat
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.Builder(this, SERVICE_CHANNEL_ID)
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.setSmallIcon(R.drawable.ic_notification)
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.setContentTitle(getString(R.string.notif_title))
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.setContentText(text)
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.setPriority(NotificationCompat.PRIORITY_MIN)
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.setOngoing(true)
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.build()
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private fun createNotificationChannels() {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
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val serviceChannel =
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NotificationChannel(
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SERVICE_CHANNEL_ID,
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getString(R.string.notif_channel_service_name),
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NotificationManager.IMPORTANCE_MIN,
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).apply {
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description = getString(R.string.notif_channel_service_desc)
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}
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val chatChannel =
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NotificationChannel(
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CHAT_CHANNEL_ID,
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getString(R.string.notif_channel_chat_name),
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NotificationManager.IMPORTANCE_HIGH,
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).apply {
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description = getString(R.string.notif_channel_chat_desc)
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}
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val manager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
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manager.createNotificationChannel(serviceChannel)
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manager.createNotificationChannel(chatChannel)
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}
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}
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override fun onStartCommand(
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intent: Intent?,
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flags: Int,
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startId: Int,
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): Int = START_NOT_STICKY
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override fun onBind(intent: Intent?): IBinder? = null
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override fun onDestroy() {
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eventCollector?.cancel()
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serviceScope.cancel()
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super.onDestroy()
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}
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}
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/**
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* Helper to start/stop the notification service from the UI layer.
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*/
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object NotificationHelper {
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fun start(context: Context) {
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if (AuthManager.getToken().isNullOrBlank()) return
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// Only run the foreground service while a reply is actually pending
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// (issue #794) — otherwise the mandatory persistent "Waiting for
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// Hermes replies" notification appears on every background even
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// when nothing is in flight.
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if (!HermesWsClient.pendingReply) return
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val intent = Intent(context, ChatNotificationService::class.java)
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
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context.startForegroundService(intent)
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} else {
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context.startService(intent)
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}
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}
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fun stop(context: Context) {
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context.stopService(Intent(context, ChatNotificationService::class.java))
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}
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fun setAppForeground(
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context: Context,
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foreground: Boolean,
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) {
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ChatNotificationService.setAppForeground(foreground)
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HermesWsClient.setAppForeground(foreground)
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}
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fun isAppInForeground(): Boolean = ChatNotificationService.isAppInForeground()
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}
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