Refactor/robustness (#446)

* Refactor BitChat for improved robustness and performance

Major refactoring to simplify architecture and fix critical issues:

Architecture Improvements:
- Replace complex BluetoothMeshService with simplified SimplifiedBluetoothService
- Consolidate message routing and peer management into unified services
- Remove redundant caching layers and optimize performance

Bug Fixes:
- Fix critical BLE peer mapping corruption in mesh networks
- Fix encrypted message routing failures in multi-peer scenarios
- Fix app freezes and Main Thread Checker warnings
- Fix BLE message delivery in dual-role connections
- Fix favorite toggle UI not updating instantly
- Fix Nostr offline messaging with 24-hour message filtering

Features:
- Add command processor for chat commands
- Add autocomplete service for mentions and commands
- Improve private chat management with dedicated service
- Add unified peer service for consistent state management

Performance:
- Optimize BLE reconnection speed
- Reduce excessive logging throughout codebase
- Improve message deduplication efficiency
- Optimize UI updates and state management

* Improvements refactor robust (#441)

* remove unused code

* remove more

* TLV for announcement

* restore

* restore

* restore?

* messages tlv too (#442)

* Fix Nostr notification and read receipt issues, add TLV encoding, cleanup unused code

## Notification & Read Receipt Fixes
- Fixed toolbar notification icon appearing incorrectly on app restart for already-read messages
- Fixed read receipts being incorrectly deleted on startup when privateChats was empty
- Fixed messages not being marked as read when opening chat for first time
- Fixed senderPeerID not being updated during message consolidation
- Added startup phase logic to block old messages (>30s) while allowing recent ones
- Fixed unread status checking across all storage locations (ephemeral, stable Noise keys, temporary Nostr IDs)

## TLV Encoding Implementation
- Implemented Type-Length-Value encoding for private message payloads
- Added PrivateMessagePacket struct with TLV encode/decode methods
- Enhanced message structure for better extensibility and robustness

## Code Cleanup
- Removed unused PeerStateManager class and related dependencies
- Removed dead protocol types (DeliveryAck, ProtocolAck/Nack, NoiseIdentityAnnouncement)
- Cleaned up BitchatDelegate by removing unused methods
- Removed excessive debug logging throughout ChatViewModel
- Added test-only ProtocolNack helper for integration tests

## Technical Details
- Messages stored under three ID types: ephemeral peer IDs, stable Noise key hexes, temporary Nostr IDs
- Fixed cleanupOldReadReceipts() to skip when privateChats is empty or during startup
- Updated message consolidation to properly update senderPeerID
- Restored NIP-17 timestamp randomization (±15 minutes) for privacy

---------

Co-authored-by: jack <jackjackbits@users.noreply.github.com>
Co-authored-by: callebtc <93376500+callebtc@users.noreply.github.com>
This commit is contained in:
jack
2025-08-17 01:51:54 +02:00
committed by GitHub
co-authored by jack callebtc
parent 47b0829685
commit 845ffc601b
38 changed files with 6423 additions and 12246 deletions
+189
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//
// PrivateChatManager.swift
// bitchat
//
// Manages private chat sessions and messages
// This is free and unencumbered software released into the public domain.
//
import Foundation
import SwiftUI
/// Manages all private chat functionality
class PrivateChatManager: ObservableObject {
@Published var privateChats: [String: [BitchatMessage]] = [:]
@Published var selectedPeer: String? = nil
@Published var unreadMessages: Set<String> = []
private var selectedPeerFingerprint: String? = nil
var sentReadReceipts: Set<String> = [] // Made accessible for ChatViewModel
weak var meshService: SimplifiedBluetoothService?
init(meshService: SimplifiedBluetoothService? = nil) {
self.meshService = meshService
}
/// Start a private chat with a peer
func startChat(with peerID: String) {
selectedPeer = peerID
// Store fingerprint for persistence across reconnections
if let fingerprint = meshService?.getPeerFingerprint(peerID) {
selectedPeerFingerprint = fingerprint
}
// Mark messages as read
markAsRead(from: peerID)
// Initialize chat if needed
if privateChats[peerID] == nil {
privateChats[peerID] = []
}
}
/// End the current private chat
func endChat() {
selectedPeer = nil
selectedPeerFingerprint = nil
}
/// Send a private message
func sendMessage(_ content: String, to peerID: String) {
guard let meshService = meshService,
let peerNickname = meshService.getPeerNicknames()[peerID] else {
return
}
let messageID = UUID().uuidString
// Create local message
let message = BitchatMessage(
id: messageID,
sender: meshService.myNickname,
content: content,
timestamp: Date(),
isRelay: false,
originalSender: nil,
isPrivate: true,
recipientNickname: peerNickname,
senderPeerID: meshService.myPeerID,
mentions: nil,
deliveryStatus: .sending
)
// Add to chat
if privateChats[peerID] == nil {
privateChats[peerID] = []
}
privateChats[peerID]?.append(message)
// Send via mesh service
meshService.sendPrivateMessage(content, to: peerID, recipientNickname: peerNickname, messageID: messageID)
}
/// Handle incoming private message
func handleIncomingMessage(_ message: BitchatMessage) {
guard let senderPeerID = message.senderPeerID else { return }
// Initialize chat if needed
if privateChats[senderPeerID] == nil {
privateChats[senderPeerID] = []
}
// Add message
privateChats[senderPeerID]?.append(message)
// Mark as unread if not in this chat
if selectedPeer != senderPeerID {
unreadMessages.insert(senderPeerID)
// Send notification
NotificationService.shared.sendPrivateMessageNotification(
from: message.sender,
message: message.content,
peerID: senderPeerID
)
} else {
// Send read receipt if viewing this chat
sendReadReceipt(for: message)
}
}
/// Mark messages from a peer as read
func markAsRead(from peerID: String) {
unreadMessages.remove(peerID)
// Send read receipts for unread messages that haven't been sent yet
if let messages = privateChats[peerID] {
for message in messages {
if message.senderPeerID == peerID && !message.isRelay && !sentReadReceipts.contains(message.id) {
sendReadReceipt(for: message)
}
}
}
}
/// Update the selected peer if fingerprint matches (for reconnections)
func updateSelectedPeer(peers: [String: String]) {
guard let fingerprint = selectedPeerFingerprint else { return }
// Find peer with matching fingerprint
for (peerID, _) in peers {
if meshService?.getPeerFingerprint(peerID) == fingerprint {
selectedPeer = peerID
break
}
}
}
/// Get chat messages for current context
func getCurrentMessages() -> [BitchatMessage] {
guard let peer = selectedPeer else { return [] }
return privateChats[peer] ?? []
}
/// Clear a private chat
func clearChat(with peerID: String) {
privateChats[peerID]?.removeAll()
}
/// Handle delivery acknowledgment
func handleDeliveryAck(messageID: String, from peerID: String) {
guard privateChats[peerID] != nil else { return }
if let index = privateChats[peerID]?.firstIndex(where: { $0.id == messageID }) {
privateChats[peerID]?[index].deliveryStatus = .delivered(to: "recipient", at: Date())
}
}
/// Handle read receipt
func handleReadReceipt(messageID: String, from peerID: String) {
guard privateChats[peerID] != nil else { return }
if let index = privateChats[peerID]?.firstIndex(where: { $0.id == messageID }) {
privateChats[peerID]?[index].deliveryStatus = .read(by: "recipient", at: Date())
}
}
// MARK: - Private Methods
private func sendReadReceipt(for message: BitchatMessage) {
guard !sentReadReceipts.contains(message.id),
let senderPeerID = message.senderPeerID else {
return
}
sentReadReceipts.insert(message.id)
// Create read receipt using the simplified method
let receipt = ReadReceipt(
originalMessageID: message.id,
readerID: meshService?.myPeerID ?? "",
readerNickname: meshService?.myNickname ?? ""
)
// Send through mesh service's read receipt method
meshService?.sendReadReceipt(receipt, to: senderPeerID)
}
}