Meshtastic-Android/app/src/main/java/com/geeksville/mesh/service/MeshServiceNotificationsImpl.kt

515 lines
20 KiB
Kotlin

/*
* Copyright (c) 2025 Meshtastic LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.geeksville.mesh.service
import android.app.Notification
import android.app.NotificationChannel
import android.app.NotificationManager
import android.app.PendingIntent
import android.app.TaskStackBuilder
import android.content.ContentResolver.SCHEME_ANDROID_RESOURCE
import android.content.Context
import android.content.Intent
import android.graphics.Color
import android.media.AudioAttributes
import android.media.RingtoneManager
import androidx.core.app.NotificationCompat
import androidx.core.app.Person
import androidx.core.app.RemoteInput
import androidx.core.content.getSystemService
import androidx.core.net.toUri
import com.geeksville.mesh.MainActivity
import com.geeksville.mesh.R.raw
import com.geeksville.mesh.service.ReplyReceiver.Companion.KEY_TEXT_REPLY
import com.meshtastic.core.strings.getString
import dagger.hilt.android.qualifiers.ApplicationContext
import org.jetbrains.compose.resources.StringResource
import org.meshtastic.core.database.entity.NodeEntity
import org.meshtastic.core.model.util.formatUptime
import org.meshtastic.core.navigation.DEEP_LINK_BASE_URI
import org.meshtastic.core.service.MeshServiceNotifications
import org.meshtastic.core.service.SERVICE_NOTIFY_ID
import org.meshtastic.core.strings.Res
import org.meshtastic.core.strings.client_notification
import org.meshtastic.core.strings.low_battery_message
import org.meshtastic.core.strings.low_battery_title
import org.meshtastic.core.strings.meshtastic_alerts_notifications
import org.meshtastic.core.strings.meshtastic_broadcast_notifications
import org.meshtastic.core.strings.meshtastic_low_battery_notifications
import org.meshtastic.core.strings.meshtastic_low_battery_temporary_remote_notifications
import org.meshtastic.core.strings.meshtastic_messages_notifications
import org.meshtastic.core.strings.meshtastic_new_nodes_notifications
import org.meshtastic.core.strings.meshtastic_service_notifications
import org.meshtastic.core.strings.new_node_seen
import org.meshtastic.core.strings.no_local_stats
import org.meshtastic.core.strings.reply
import org.meshtastic.proto.MeshProtos
import org.meshtastic.proto.TelemetryProtos
import org.meshtastic.proto.TelemetryProtos.LocalStats
import javax.inject.Inject
/**
* Manages the creation and display of all app notifications.
*
* This class centralizes notification logic, including channel creation, builder configuration, and displaying
* notifications for various events like new messages, alerts, and service status changes.
*/
@Suppress("TooManyFunctions")
class MeshServiceNotificationsImpl @Inject constructor(@ApplicationContext private val context: Context) :
MeshServiceNotifications {
private val notificationManager = context.getSystemService<NotificationManager>()!!
companion object {
private const val FIFTEEN_MINUTES_IN_MILLIS = 15L * 60 * 1000
const val MAX_BATTERY_LEVEL = 100
private val NOTIFICATION_LIGHT_COLOR = Color.BLUE
}
/**
* Sealed class to define the properties of each notification channel. This centralizes channel configuration and
* makes it type-safe.
*/
private sealed class NotificationType(
val channelId: String,
val channelNameRes: StringResource,
val importance: Int,
) {
object ServiceState :
NotificationType(
"my_service",
Res.string.meshtastic_service_notifications,
NotificationManager.IMPORTANCE_MIN,
)
object DirectMessage :
NotificationType(
"my_messages",
Res.string.meshtastic_messages_notifications,
NotificationManager.IMPORTANCE_HIGH,
)
object BroadcastMessage :
NotificationType(
"my_broadcasts",
Res.string.meshtastic_broadcast_notifications,
NotificationManager.IMPORTANCE_DEFAULT,
)
object Alert :
NotificationType(
"my_alerts",
Res.string.meshtastic_alerts_notifications,
NotificationManager.IMPORTANCE_HIGH,
)
object NewNode :
NotificationType(
"new_nodes",
Res.string.meshtastic_new_nodes_notifications,
NotificationManager.IMPORTANCE_DEFAULT,
)
object LowBatteryLocal :
NotificationType(
"low_battery",
Res.string.meshtastic_low_battery_notifications,
NotificationManager.IMPORTANCE_DEFAULT,
)
object LowBatteryRemote :
NotificationType(
"low_battery_remote",
Res.string.meshtastic_low_battery_temporary_remote_notifications,
NotificationManager.IMPORTANCE_DEFAULT,
)
object Client :
NotificationType(
"client_notifications",
Res.string.client_notification,
NotificationManager.IMPORTANCE_HIGH,
)
companion object {
// A list of all types for easy initialization.
fun allTypes() = listOf(
ServiceState,
DirectMessage,
BroadcastMessage,
Alert,
NewNode,
LowBatteryLocal,
LowBatteryRemote,
Client,
)
}
}
override fun clearNotifications() {
notificationManager.cancelAll()
}
/**
* Creates all necessary notification channels on devices running Android O or newer. This should be called once
* when the service is created.
*/
override fun initChannels() {
NotificationType.allTypes().forEach { type -> createNotificationChannel(type) }
}
private fun createNotificationChannel(type: NotificationType) {
if (notificationManager.getNotificationChannel(type.channelId) != null) return
val channelName = context.getString(type.channelNameRes)
val channel =
NotificationChannel(type.channelId, channelName, type.importance).apply {
lightColor = NOTIFICATION_LIGHT_COLOR
lockscreenVisibility = Notification.VISIBILITY_PUBLIC // Default, can be overridden
// Type-specific configurations
when (type) {
NotificationType.ServiceState -> {
lockscreenVisibility = Notification.VISIBILITY_PRIVATE
}
NotificationType.DirectMessage,
NotificationType.BroadcastMessage,
NotificationType.NewNode,
NotificationType.LowBatteryLocal,
NotificationType.LowBatteryRemote,
-> {
setShowBadge(true)
setSound(
RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION),
AudioAttributes.Builder()
.setUsage(AudioAttributes.USAGE_NOTIFICATION)
.setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
.build(),
)
if (type == NotificationType.LowBatteryRemote) enableVibration(true)
}
NotificationType.Alert -> {
setShowBadge(true)
enableLights(true)
enableVibration(true)
setBypassDnd(true)
val alertSoundUri = "${SCHEME_ANDROID_RESOURCE}://${context.packageName}/${raw.alert}".toUri()
setSound(
alertSoundUri,
AudioAttributes.Builder()
.setUsage(AudioAttributes.USAGE_ALARM) // More appropriate for an alert
.setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
.build(),
)
}
NotificationType.Client -> {
setShowBadge(true)
}
}
}
notificationManager.createNotificationChannel(channel)
}
var cachedTelemetry: TelemetryProtos.Telemetry? = null
var cachedLocalStats: LocalStats? = null
var nextStatsUpdateMillis: Long = 0
var cachedMessage: String? = null
// region Public Notification Methods
override fun updateServiceStateNotification(
summaryString: String?,
telemetry: TelemetryProtos.Telemetry?,
): Notification {
val hasLocalStats = telemetry?.hasLocalStats() == true
val hasDeviceMetrics = telemetry?.hasDeviceMetrics() == true
val message =
if (hasLocalStats) {
val localStats = telemetry.localStats
val localStatsMessage = localStats?.formatToString()
cachedTelemetry = telemetry
nextStatsUpdateMillis = System.currentTimeMillis() + FIFTEEN_MINUTES_IN_MILLIS
localStatsMessage
} else if (cachedTelemetry == null && hasDeviceMetrics) {
val deviceMetrics = telemetry.deviceMetrics
val deviceMetricsMessage = deviceMetrics.formatToString()
if (cachedLocalStats == null) {
cachedTelemetry = telemetry
}
nextStatsUpdateMillis = System.currentTimeMillis()
deviceMetricsMessage
} else {
null
}
cachedMessage = message ?: cachedMessage ?: context.getString(Res.string.no_local_stats)
val notification =
createServiceStateNotification(
name = summaryString.orEmpty(),
message = cachedMessage,
nextUpdateAt = nextStatsUpdateMillis,
)
notificationManager.notify(SERVICE_NOTIFY_ID, notification)
return notification
}
override fun updateMessageNotification(contactKey: String, name: String, message: String, isBroadcast: Boolean) {
val notification = createMessageNotification(contactKey, name, message, isBroadcast)
// Use a consistent, unique ID for each message conversation.
notificationManager.notify(contactKey.hashCode(), notification)
}
override fun showAlertNotification(contactKey: String, name: String, alert: String) {
val notification = createAlertNotification(contactKey, name, alert)
// Use a consistent, unique ID for each alert source.
notificationManager.notify(name.hashCode(), notification)
}
override fun showNewNodeSeenNotification(node: NodeEntity) {
val notification = createNewNodeSeenNotification(node.user.shortName, node.user.longName)
notificationManager.notify(node.num, notification)
}
override fun showOrUpdateLowBatteryNotification(node: NodeEntity, isRemote: Boolean) {
val notification = createLowBatteryNotification(node, isRemote)
notificationManager.notify(node.num, notification)
}
override fun showClientNotification(clientNotification: MeshProtos.ClientNotification) {
val notification =
createClientNotification(context.getString(Res.string.client_notification), clientNotification.message)
notificationManager.notify(clientNotification.toString().hashCode(), notification)
}
override fun cancelMessageNotification(contactKey: String) = notificationManager.cancel(contactKey.hashCode())
override fun cancelLowBatteryNotification(node: NodeEntity) = notificationManager.cancel(node.num)
override fun clearClientNotification(notification: MeshProtos.ClientNotification) =
notificationManager.cancel(notification.toString().hashCode())
// endregion
// region Notification Creation
private fun createServiceStateNotification(name: String, message: String?, nextUpdateAt: Long?): Notification {
val builder =
commonBuilder(NotificationType.ServiceState)
.setPriority(NotificationCompat.PRIORITY_MIN)
.setCategory(Notification.CATEGORY_SERVICE)
.setOngoing(true)
.setContentTitle(name)
.setShowWhen(true)
message?.let {
builder.setContentText(it)
builder.setStyle(NotificationCompat.BigTextStyle().bigText(it))
}
nextUpdateAt
?.takeIf { it > System.currentTimeMillis() }
?.let {
builder.setWhen(it)
builder.setUsesChronometer(true)
builder.setChronometerCountDown(true)
}
return builder.build()
}
private fun createMessageNotification(
contactKey: String,
name: String,
message: String,
isBroadcast: Boolean,
): Notification {
val type = if (isBroadcast) NotificationType.BroadcastMessage else NotificationType.DirectMessage
val builder = commonBuilder(type, createOpenMessageIntent(contactKey))
val person = Person.Builder().setName(name).build()
val style = NotificationCompat.MessagingStyle(person).addMessage(message, System.currentTimeMillis(), person)
builder
.setCategory(Notification.CATEGORY_MESSAGE)
.setAutoCancel(true)
.setStyle(style)
.setVisibility(NotificationCompat.VISIBILITY_PRIVATE)
.setWhen(System.currentTimeMillis())
.setShowWhen(true)
// Only add reply action for direct messages, not broadcasts
if (!isBroadcast) {
builder.addAction(createReplyAction(contactKey))
}
return builder.build()
}
private fun createAlertNotification(contactKey: String, name: String, alert: String): Notification {
val person = Person.Builder().setName(name).build()
val style = NotificationCompat.MessagingStyle(person).addMessage(alert, System.currentTimeMillis(), person)
return commonBuilder(NotificationType.Alert, createOpenMessageIntent(contactKey))
.setPriority(NotificationCompat.PRIORITY_HIGH)
.setCategory(Notification.CATEGORY_ALARM)
.setAutoCancel(true)
.setStyle(style)
.build()
}
private fun createNewNodeSeenNotification(name: String, message: String?): Notification {
val title = context.getString(Res.string.new_node_seen).format(name)
val builder =
commonBuilder(NotificationType.NewNode)
.setCategory(Notification.CATEGORY_STATUS)
.setAutoCancel(true)
.setContentTitle(title)
.setWhen(System.currentTimeMillis())
.setShowWhen(true)
message?.let {
builder.setContentText(it)
builder.setStyle(NotificationCompat.BigTextStyle().bigText(it))
}
return builder.build()
}
private fun createLowBatteryNotification(node: NodeEntity, isRemote: Boolean): Notification {
val type = if (isRemote) NotificationType.LowBatteryRemote else NotificationType.LowBatteryLocal
val title = context.getString(Res.string.low_battery_title).format(node.shortName)
val message =
context.getString(Res.string.low_battery_message).format(node.longName, node.deviceMetrics.batteryLevel)
return commonBuilder(type)
.setCategory(Notification.CATEGORY_STATUS)
.setOngoing(true)
.setOnlyAlertOnce(true)
.setProgress(MAX_BATTERY_LEVEL, node.deviceMetrics.batteryLevel, false)
.setContentTitle(title)
.setContentText(message)
.setStyle(NotificationCompat.BigTextStyle().bigText(message))
.setWhen(System.currentTimeMillis())
.setShowWhen(true)
.build()
}
private fun createClientNotification(name: String, message: String?): Notification =
commonBuilder(NotificationType.Client)
.setCategory(Notification.CATEGORY_ERROR)
.setAutoCancel(true)
.setContentTitle(name)
.apply {
message?.let {
setContentText(it)
setStyle(NotificationCompat.BigTextStyle().bigText(it))
}
}
.build()
// endregion
// region Helper/Builder Methods
private val openAppIntent: PendingIntent by lazy {
val intent = Intent(context, MainActivity::class.java).apply { flags = Intent.FLAG_ACTIVITY_SINGLE_TOP }
PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT)
}
private fun createOpenMessageIntent(contactKey: String): PendingIntent {
val deepLinkUri = "$DEEP_LINK_BASE_URI/messages/$contactKey".toUri()
val deepLinkIntent =
Intent(Intent.ACTION_VIEW, deepLinkUri, context, MainActivity::class.java).apply {
flags = Intent.FLAG_ACTIVITY_SINGLE_TOP
}
return TaskStackBuilder.create(context).run {
addNextIntentWithParentStack(deepLinkIntent)
getPendingIntent(contactKey.hashCode(), PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT)
}
}
private fun createReplyAction(contactKey: String): NotificationCompat.Action {
val replyLabel = context.getString(Res.string.reply)
val remoteInput = RemoteInput.Builder(KEY_TEXT_REPLY).setLabel(replyLabel).build()
val replyIntent =
Intent(context, ReplyReceiver::class.java).apply {
action = ReplyReceiver.REPLY_ACTION
putExtra(ReplyReceiver.CONTACT_KEY, contactKey)
}
val replyPendingIntent =
PendingIntent.getBroadcast(
context,
contactKey.hashCode(),
replyIntent,
PendingIntent.FLAG_MUTABLE or PendingIntent.FLAG_UPDATE_CURRENT,
)
return NotificationCompat.Action.Builder(android.R.drawable.ic_menu_send, replyLabel, replyPendingIntent)
.addRemoteInput(remoteInput)
.build()
}
private fun commonBuilder(
type: NotificationType,
contentIntent: PendingIntent? = null,
): NotificationCompat.Builder {
val smallIcon = com.geeksville.mesh.R.drawable.app_icon
return NotificationCompat.Builder(context, type.channelId)
.setSmallIcon(smallIcon)
.setColor(NOTIFICATION_LIGHT_COLOR)
.setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
.setContentIntent(contentIntent ?: openAppIntent)
}
// endregion
}
// Extension function to format LocalStats into a readable string.
private fun LocalStats?.formatToString(): String? = this?.allFields
?.mapNotNull { (k, v) ->
when (k.name) {
"num_online_nodes",
"num_total_nodes",
-> null // Exclude these fields
"uptime_seconds" -> "Uptime: ${formatUptime(v as Int)}"
"channel_utilization" -> "ChUtil: %.2f%%".format(v)
"air_util_tx" -> "AirUtilTX: %.2f%%".format(v)
else -> {
val formattedKey = k.name.replace('_', ' ').replaceFirstChar { it.titlecase() }
"$formattedKey: $v"
}
}
}
?.joinToString("\n")
private fun TelemetryProtos.DeviceMetrics?.formatToString(): String? = this?.allFields
?.mapNotNull { (k, v) ->
when (k.name) {
"battery_level" -> "Battery Level: $v"
"uptime_seconds" -> "Uptime: ${formatUptime(v as Int)}"
"channel_utilization" -> "ChUtil: %.2f%%".format(v)
"air_util_tx" -> "AirUtilTX: %.2f%%".format(v)
else -> {
val formattedKey = k.name.replace('_', ' ').replaceFirstChar { it.titlecase() }
"$formattedKey: $v"
}
}
}
?.joinToString("\n")