mirror of
https://github.com/permissionlesstech/bitchat-android.git
synced 2026-07-25 14:05:19 +00:00
324 lines
12 KiB
Kotlin
324 lines
12 KiB
Kotlin
package com.bitchat.android.ui
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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.content.Context
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import android.content.Intent
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import android.os.Build
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import android.util.Log
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import androidx.core.app.NotificationCompat
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import androidx.core.app.Person
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import androidx.core.app.NotificationManagerCompat
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import com.bitchat.android.MainActivity
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import com.bitchat.android.R
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import java.util.concurrent.ConcurrentHashMap
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/**
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* Enhanced notification manager for direct messages with production-ready features:
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* - Notification grouping per sender
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* - Click handling to open specific DM
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* - App background state awareness
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* - Proper notification management and cleanup
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*/
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class NotificationManager(private val context: Context) {
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companion object {
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private const val TAG = "NotificationManager"
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private const val CHANNEL_ID = "bitchat_dm_notifications"
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private const val GROUP_KEY_DM = "bitchat_dm_group"
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private const val NOTIFICATION_REQUEST_CODE = 1000
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private const val SUMMARY_NOTIFICATION_ID = 999
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// Intent extras for notification handling
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const val EXTRA_OPEN_PRIVATE_CHAT = "open_private_chat"
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const val EXTRA_PEER_ID = "peer_id"
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const val EXTRA_SENDER_NICKNAME = "sender_nickname"
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}
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private val notificationManager = NotificationManagerCompat.from(context)
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private val systemNotificationManager = context.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
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// Track pending notifications per sender to enable grouping
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private val pendingNotifications = ConcurrentHashMap<String, MutableList<PendingNotification>>()
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// Track app background state
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@Volatile
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private var isAppInBackground = false
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// Track current view state
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@Volatile
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private var currentPrivateChatPeer: String? = null
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data class PendingNotification(
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val senderPeerID: String,
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val senderNickname: String,
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val messageContent: String,
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val timestamp: Long
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)
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init {
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createNotificationChannel()
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}
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private fun createNotificationChannel() {
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
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val name = "Direct Messages"
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val descriptionText = "Notifications for private messages from other users"
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val importance = NotificationManager.IMPORTANCE_HIGH
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val channel = NotificationChannel(CHANNEL_ID, name, importance).apply {
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description = descriptionText
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enableVibration(true)
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setShowBadge(true)
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}
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systemNotificationManager.createNotificationChannel(channel)
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}
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}
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/**
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* Update app background state - notifications should only be shown when app is backgrounded
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*/
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fun setAppBackgroundState(inBackground: Boolean) {
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isAppInBackground = inBackground
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Log.d(TAG, "App background state changed: $inBackground")
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}
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/**
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* Update current private chat peer - affects notification logic
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*/
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fun setCurrentPrivateChatPeer(peerID: String?) {
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currentPrivateChatPeer = peerID
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Log.d(TAG, "Current private chat peer changed: $peerID")
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}
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/**
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* Show a notification for a private message with proper grouping and state awareness
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*/
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fun showPrivateMessageNotification(senderPeerID: String, senderNickname: String, messageContent: String) {
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// Only show notifications if app is in background OR user is not viewing this specific chat
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val shouldNotify = isAppInBackground || (!isAppInBackground && currentPrivateChatPeer != senderPeerID)
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if (!shouldNotify) {
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Log.d(TAG, "Skipping notification - app in foreground and viewing chat with $senderNickname")
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return
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}
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Log.d(TAG, "Showing notification for message from $senderNickname (peerID: $senderPeerID)")
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val notification = PendingNotification(
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senderPeerID = senderPeerID,
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senderNickname = senderNickname,
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messageContent = messageContent,
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timestamp = System.currentTimeMillis()
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)
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// Add to pending notifications for this sender
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pendingNotifications.computeIfAbsent(senderPeerID) { mutableListOf() }.add(notification)
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// Create or update notification for this sender
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showNotificationForSender(senderPeerID)
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// Update summary notification if we have multiple senders
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if (pendingNotifications.size > 1) {
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showSummaryNotification()
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}
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}
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private fun showNotificationForSender(senderPeerID: String) {
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val notifications = pendingNotifications[senderPeerID] ?: return
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if (notifications.isEmpty()) return
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val latestNotification = notifications.last()
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val messageCount = notifications.size
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// Create intent to open the specific private chat
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val intent = Intent(context, MainActivity::class.java).apply {
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flags = Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP
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putExtra(EXTRA_OPEN_PRIVATE_CHAT, true)
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putExtra(EXTRA_PEER_ID, senderPeerID)
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putExtra(EXTRA_SENDER_NICKNAME, latestNotification.senderNickname)
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}
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val pendingIntent = PendingIntent.getActivity(
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context,
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NOTIFICATION_REQUEST_CODE + senderPeerID.hashCode(),
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intent,
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PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT
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)
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// Create person for better notification styling
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val person = Person.Builder()
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.setName(latestNotification.senderNickname)
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.setKey(senderPeerID)
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.build()
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// Build notification content
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val contentText = if (messageCount == 1) {
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latestNotification.messageContent
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} else {
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"${latestNotification.messageContent} (+${messageCount - 1} more)"
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}
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val contentTitle = if (messageCount == 1) {
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latestNotification.senderNickname
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} else {
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"${latestNotification.senderNickname} ($messageCount messages)"
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}
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val builder = NotificationCompat.Builder(context, CHANNEL_ID)
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.setSmallIcon(R.drawable.ic_notification)
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.setContentTitle(contentTitle)
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.setContentText(contentText)
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.setContentIntent(pendingIntent)
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.setAutoCancel(true)
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.setPriority(NotificationCompat.PRIORITY_HIGH)
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.setCategory(NotificationCompat.CATEGORY_MESSAGE)
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.addPerson(person)
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.setShowWhen(true)
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.setWhen(latestNotification.timestamp)
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// Add to notification group if we have multiple senders
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if (pendingNotifications.size > 1) {
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builder.setGroup(GROUP_KEY_DM)
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}
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// Add style for multiple messages
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if (messageCount > 1) {
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val style = NotificationCompat.InboxStyle()
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.setBigContentTitle(contentTitle)
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// Show last few messages in expanded view
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notifications.takeLast(5).forEach { notif ->
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style.addLine(notif.messageContent)
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}
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if (messageCount > 5) {
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style.setSummaryText("and ${messageCount - 5} more")
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}
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builder.setStyle(style)
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} else {
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// Single message - use BigTextStyle for long messages
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builder.setStyle(
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NotificationCompat.BigTextStyle()
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.bigText(latestNotification.messageContent)
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)
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}
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// Use sender peer ID hash as notification ID to group messages from same sender
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val notificationId = senderPeerID.hashCode()
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notificationManager.notify(notificationId, builder.build())
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Log.d(TAG, "Displayed notification for $contentTitle with ID $notificationId")
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}
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private fun showSummaryNotification() {
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if (pendingNotifications.isEmpty()) return
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val totalMessages = pendingNotifications.values.sumOf { it.size }
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val senderCount = pendingNotifications.size
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val intent = Intent(context, MainActivity::class.java).apply {
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flags = Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP
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}
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val pendingIntent = PendingIntent.getActivity(
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context,
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NOTIFICATION_REQUEST_CODE,
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intent,
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PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT
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)
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val builder = NotificationCompat.Builder(context, CHANNEL_ID)
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.setSmallIcon(R.drawable.ic_notification)
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.setContentTitle("bitchat")
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.setContentText("$totalMessages messages from $senderCount people")
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.setContentIntent(pendingIntent)
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.setAutoCancel(true)
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.setPriority(NotificationCompat.PRIORITY_HIGH)
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.setCategory(NotificationCompat.CATEGORY_MESSAGE)
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.setGroup(GROUP_KEY_DM)
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.setGroupSummary(true)
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// Add inbox style showing recent senders
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val style = NotificationCompat.InboxStyle()
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.setBigContentTitle("New Messages")
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pendingNotifications.entries.take(5).forEach { (peerID, notifications) ->
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val latestNotif = notifications.last()
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val count = notifications.size
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val line = if (count == 1) {
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"${latestNotif.senderNickname}: ${latestNotif.messageContent}"
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} else {
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"${latestNotif.senderNickname}: $count messages"
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}
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style.addLine(line)
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}
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if (pendingNotifications.size > 5) {
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style.setSummaryText("and ${pendingNotifications.size - 5} more conversations")
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}
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builder.setStyle(style)
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notificationManager.notify(SUMMARY_NOTIFICATION_ID, builder.build())
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Log.d(TAG, "Displayed summary notification for $senderCount senders")
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}
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/**
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* Clear notifications for a specific sender (e.g., when user opens their chat)
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*/
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fun clearNotificationsForSender(senderPeerID: String) {
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pendingNotifications.remove(senderPeerID)
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// Cancel the individual notification
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val notificationId = senderPeerID.hashCode()
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notificationManager.cancel(notificationId)
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// Update or remove summary notification
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if (pendingNotifications.isEmpty()) {
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notificationManager.cancel(SUMMARY_NOTIFICATION_ID)
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} else if (pendingNotifications.size == 1) {
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// Only one sender left, remove group summary
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notificationManager.cancel(SUMMARY_NOTIFICATION_ID)
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} else {
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// Update summary notification
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showSummaryNotification()
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}
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Log.d(TAG, "Cleared notifications for sender: $senderPeerID")
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}
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/**
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* Clear all pending notifications
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*/
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fun clearAllNotifications() {
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pendingNotifications.clear()
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notificationManager.cancelAll()
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Log.d(TAG, "Cleared all notifications")
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}
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/**
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* Get pending notification count for UI badging
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*/
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fun getPendingNotificationCount(): Int {
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return pendingNotifications.values.sumOf { it.size }
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}
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/**
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* Get pending notifications for debugging
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*/
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fun getDebugInfo(): String {
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return buildString {
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appendLine("Notification Manager Debug Info:")
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appendLine("App in background: $isAppInBackground")
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appendLine("Current private chat peer: $currentPrivateChatPeer")
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appendLine("Pending notifications: ${pendingNotifications.size} senders")
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pendingNotifications.forEach { (peerID, notifications) ->
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appendLine(" $peerID: ${notifications.size} messages")
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}
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}
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}
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}
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