Background persistence (#505)

* persistence step 1 * fix build * messages in the background work, notifications not yet * app state store * DM icon shows up * notification launches when app is closed! * keep ui updated * lifecycle fixes * extensive logging, maybe revert later * send nickname in announcement * quit in notification * setting in about sheet * fix quit bitchat * lifecycle fixes * power mode based on background state * stats for both direciotns * fix graph persistence * better counting * count per device * only compute when debug sheet is open? untested * fix read receipts * fix read receipts fully * fix unread badge if messages have been read in focus * foreground promotion fix * fix app kill in notification * adjust to new tor * nice * about sheet design
2026-07-25 08:25:22 +00:00 · 2025-12-13 16:43:39 +07:00
parent e96330e50b
commit 3f8c236a72
24 changed files with 2079 additions and 575 deletions
@@ -0,0 +1,109 @@
+package com.bitchat.android.services
+
+import com.bitchat.android.model.BitchatMessage
+import com.bitchat.android.model.DeliveryStatus
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.flow.asStateFlow
+
+/**
+ * Process-wide in-memory state store that survives Activity recreation.
+ * The foreground Mesh service updates this store; UI subscribes/hydrates from it.
+ */
+object AppStateStore {
+    // Global de-dup set by message id to avoid duplicate keys in Compose lists
+    private val seenMessageIds = mutableSetOf<String>()
+    // Connected peer IDs (mesh ephemeral IDs)
+    private val _peers = MutableStateFlow<List<String>>(emptyList())
+    val peers: StateFlow<List<String>> = _peers.asStateFlow()
+
+    // Public mesh timeline messages (non-channel)
+    private val _publicMessages = MutableStateFlow<List<BitchatMessage>>(emptyList())
+    val publicMessages: StateFlow<List<BitchatMessage>> = _publicMessages.asStateFlow()
+
+    // Private messages by peerID
+    private val _privateMessages = MutableStateFlow<Map<String, List<BitchatMessage>>>(emptyMap())
+    val privateMessages: StateFlow<Map<String, List<BitchatMessage>>> = _privateMessages.asStateFlow()
+
+    // Channel messages by channel name
+    private val _channelMessages = MutableStateFlow<Map<String, List<BitchatMessage>>>(emptyMap())
+    val channelMessages: StateFlow<Map<String, List<BitchatMessage>>> = _channelMessages.asStateFlow()
+
+    fun setPeers(ids: List<String>) {
+        _peers.value = ids
+    }
+
+    fun addPublicMessage(msg: BitchatMessage) {
+        synchronized(this) {
+            if (seenMessageIds.contains(msg.id)) return
+            seenMessageIds.add(msg.id)
+            _publicMessages.value = _publicMessages.value + msg
+        }
+    }
+
+    fun addPrivateMessage(peerID: String, msg: BitchatMessage) {
+        synchronized(this) {
+            if (seenMessageIds.contains(msg.id)) return
+            seenMessageIds.add(msg.id)
+            val map = _privateMessages.value.toMutableMap()
+            val list = (map[peerID] ?: emptyList()) + msg
+            map[peerID] = list
+            _privateMessages.value = map
+        }
+    }
+
+    private fun statusPriority(status: DeliveryStatus?): Int = when (status) {
+        null -> 0
+        is DeliveryStatus.Sending -> 1
+        is DeliveryStatus.Sent -> 2
+        is DeliveryStatus.PartiallyDelivered -> 3
+        is DeliveryStatus.Delivered -> 4
+        is DeliveryStatus.Read -> 5
+        is DeliveryStatus.Failed -> 0
+    }
+
+    fun updatePrivateMessageStatus(messageID: String, status: DeliveryStatus) {
+        synchronized(this) {
+            val map = _privateMessages.value.toMutableMap()
+            var changed = false
+            map.keys.toList().forEach { peer ->
+                val list = map[peer]?.toMutableList() ?: mutableListOf()
+                val idx = list.indexOfFirst { it.id == messageID }
+                if (idx >= 0) {
+                    val current = list[idx].deliveryStatus
+                    // Do not downgrade (e.g., Read -> Delivered)
+                    if (statusPriority(status) >= statusPriority(current)) {
+                        list[idx] = list[idx].copy(deliveryStatus = status)
+                        map[peer] = list
+                        changed = true
+                    }
+                }
+            }
+            if (changed) {
+                _privateMessages.value = map
+            }
+        }
+    }
+
+    fun addChannelMessage(channel: String, msg: BitchatMessage) {
+        synchronized(this) {
+            if (seenMessageIds.contains(msg.id)) return
+            seenMessageIds.add(msg.id)
+            val map = _channelMessages.value.toMutableMap()
+            val list = (map[channel] ?: emptyList()) + msg
+            map[channel] = list
+            _channelMessages.value = map
+        }
+    }
+
+    // Clear all in-memory state (used for full app shutdown)
+    fun clear() {
+        synchronized(this) {
+            seenMessageIds.clear()
+            _peers.value = emptyList()
+            _publicMessages.value = emptyList()
+            _privateMessages.value = emptyMap()
+            _channelMessages.value = emptyMap()
+        }
+    }
+}
@@ -0,0 +1,21 @@
+package com.bitchat.android.services
+
+import android.content.Context
+import com.bitchat.android.ui.DataManager
+
+/**
+ * Provides current user's nickname for announcements and leave messages.
+ * If no nickname saved, falls back to the provided peerID.
+ */
+object NicknameProvider {
+    fun getNickname(context: Context, myPeerID: String): String {
+        return try {
+            val dm = DataManager(context.applicationContext)
+            val nick = dm.loadNickname()
+            if (nick.isNullOrBlank()) myPeerID else nick
+        } catch (_: Exception) {
+            myPeerID
+        }
+    }
+}
+