Implement receive queue and UI shutdown handling in app state

contact/__main__.py

@@ -15,6 +15,7 @@ import curses
 import io
 import logging
 import os
+import queue
 import subprocess
 import sys
 import threading
@@ -54,6 +55,8 @@ logging.basicConfig(
 )
 
 app_state.lock = threading.Lock()
+app_state.rx_queue = queue.SimpleQueue()
+app_state.ui_shutdown = False
 
 
 # ------------------------------------------------------------------------------
@@ -149,11 +152,10 @@ def start() -> None:
         sys.exit(0)
 
     try:
+        app_state.ui_shutdown = False
         curses.wrapper(main)
-        interface_state.interface.close()
     except KeyboardInterrupt:
         logging.info("User exited with Ctrl+C")
-        interface_state.interface.close()
         sys.exit(0)
     except Exception as e:
         logging.critical("Fatal error", exc_info=True)
@@ -164,6 +166,13 @@ def start() -> None:
         print("Fatal error:", e)
         traceback.print_exc()
         sys.exit(1)
+    finally:
+        app_state.ui_shutdown = True
+        try:
+            if interface_state.interface is not None:
+                interface_state.interface.close()
+        except Exception:
+            logging.exception("Error while closing interface")
 
 
 if __name__ == "__main__":

contact/localisations/en.ini

@@ -77,7 +77,7 @@ help.node_info, "F5 = Full node info", ""
 help.archive_chat, "Ctrl+D = Archive chat / remove node", ""
 help.favorite, "Ctrl+F = Favorite", ""
 help.ignore, "Ctrl+G = Ignore", ""
-help.search, "Ctrl+/ or / = Search", ""
+help.search, "Ctrl+/ = Search", ""
 help.help, "Ctrl+K = Help", ""
 help.no_help, "No help available.", ""
 confirm.remove_from_nodedb, "Remove {name} from nodedb?", ""

contact/localisations/ru.ini

@@ -77,7 +77,7 @@ help.node_info, "F5 = Полная информация об узле", ""
 help.archive_chat, "Ctrl+D = Архив чата / удалить узел", ""
 help.favorite, "Ctrl+F = Избранное", ""
 help.ignore, "Ctrl+G = Игнорировать", ""
-help.search, "Ctrl+/ или / = Поиск", ""
+help.search, "Ctrl+/ = Поиск", ""
 help.help, "Ctrl+K = Справка", ""
 help.no_help, "Нет справки.", ""
 confirm.remove_from_nodedb, "Удалить {name} из базы узлов?", ""

contact/message_handlers/rx_handler.py

@@ -2,30 +2,36 @@ import logging
 import os
 import platform
 import shutil
-import time
 import subprocess
 import threading
-from typing import Any, Dict, Optional
- # Debounce notification sounds so a burst of queued messages only plays once.
+import time
+from typing import Any, Dict
+
+import contact.ui.default_config as config
+from contact.utilities.db_handler import (
+    get_name_from_database,
+    maybe_store_nodeinfo_in_db,
+    save_message_to_db,
+    update_node_info_in_db,
+)
+from contact.utilities.singleton import app_state, interface_state, menu_state, ui_state
+from contact.utilities.utils import add_new_message, refresh_node_list
+
+# Debounce notification sounds so a burst of queued messages only plays once.
 _SOUND_DEBOUNCE_SECONDS = 0.8
-_sound_timer: Optional[threading.Timer] = None
+_sound_timer: threading.Timer | None = None
 _sound_timer_lock = threading.Lock()
 _last_sound_request = 0.0
 
 
 def schedule_notification_sound(delay: float = _SOUND_DEBOUNCE_SECONDS) -> None:
-    """Schedule a notification sound after a short quiet period.
-
-    If more messages arrive before the delay elapses, the timer is reset.
-    This prevents playing a sound for each message when a backlog flushes.
-    """
+    """Schedule a notification sound after a short quiet period."""
     global _sound_timer, _last_sound_request
 
     now = time.monotonic()
     with _sound_timer_lock:
         _last_sound_request = now
 
-        # Cancel any previously scheduled sound.
         if _sound_timer is not None:
             try:
                 _sound_timer.cancel()
@@ -34,7 +40,6 @@ def schedule_notification_sound(delay: float = _SOUND_DEBOUNCE_SECONDS) -> None:
             _sound_timer = None
 
         def _fire(expected_request_time: float) -> None:
-            # Only play if nothing newer has been scheduled.
             with _sound_timer_lock:
                 if expected_request_time != _last_sound_request:
                     return
@@ -43,42 +48,20 @@ def schedule_notification_sound(delay: float = _SOUND_DEBOUNCE_SECONDS) -> None:
         _sound_timer = threading.Timer(delay, _fire, args=(now,))
         _sound_timer.daemon = True
         _sound_timer.start()
-from contact.utilities.utils import (
-    refresh_node_list,
-    add_new_message,
-)
-from contact.ui.contact_ui import (
-    draw_packetlog_win,
-    draw_node_list,
-    draw_messages_window,
-    draw_channel_list,
-    add_notification,
-)
-from contact.utilities.db_handler import (
-    save_message_to_db,
-    maybe_store_nodeinfo_in_db,
-    get_name_from_database,
-    update_node_info_in_db,
-)
-import contact.ui.default_config as config
-
-from contact.utilities.singleton import ui_state, interface_state, app_state, menu_state
 
 
-def play_sound():
+def play_sound() -> None:
     try:
         system = platform.system()
         sound_path = None
         executable = None
 
-        if system == "Darwin":  # macOS
+        if system == "Darwin":
             sound_path = "/System/Library/Sounds/Ping.aiff"
             executable = "afplay"
-
         elif system == "Linux":
             ogg_path = "/usr/share/sounds/freedesktop/stereo/complete.oga"
-            wav_path = "/usr/share/sounds/alsa/Front_Center.wav"  # common fallback
-
+            wav_path = "/usr/share/sounds/alsa/Front_Center.wav"
             if shutil.which("paplay") and os.path.exists(ogg_path):
                 executable = "paplay"
                 sound_path = ogg_path
@@ -95,102 +78,127 @@ def play_sound():
             cmd = [executable, sound_path]
             if executable == "ffplay":
                 cmd = [executable, "-nodisp", "-autoexit", sound_path]
-
             subprocess.run(cmd, check=True, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)
-            return
+    except subprocess.CalledProcessError as exc:
+        logging.error("Sound playback failed: %s", exc)
+    except Exception as exc:
+        logging.error("Unexpected error while playing sound: %s", exc)
 
-    except subprocess.CalledProcessError as e:
-        logging.error(f"Sound playback failed: {e}")
-    except Exception as e:
-        logging.error(f"Unexpected error: {e}")
+
+def _decode_message_payload(payload: Any) -> str:
+    if isinstance(payload, bytes):
+        return payload.decode("utf-8", errors="replace")
+    if isinstance(payload, str):
+        return payload
+    return str(payload)
+
+
+def process_receive_event(packet: Dict[str, Any]) -> None:
+    """Process a queued packet on the UI thread and perform all UI updates."""
+    # Local import prevents module-level circular import.
+    from contact.ui.contact_ui import (
+        add_notification,
+        draw_channel_list,
+        draw_messages_window,
+        draw_node_list,
+        draw_packetlog_win,
+    )
+
+    # Update packet log
+    ui_state.packet_buffer.append(packet)
+    if len(ui_state.packet_buffer) > 20:
+        ui_state.packet_buffer = ui_state.packet_buffer[-20:]
+
+    if ui_state.display_log:
+        draw_packetlog_win()
+        if ui_state.current_window == 4:
+            menu_state.need_redraw = True
+
+    decoded = packet.get("decoded")
+    if not isinstance(decoded, dict):
+        return
+
+    changed = refresh_node_list()
+    if changed:
+        draw_node_list()
+
+    portnum = decoded.get("portnum")
+    if portnum == "NODEINFO_APP":
+        user = decoded.get("user")
+        if isinstance(user, dict) and "longName" in user:
+            maybe_store_nodeinfo_in_db(packet)
+        return
+
+    if portnum != "TEXT_MESSAGE_APP":
+        return
+
+    hop_start = packet.get("hopStart", 0)
+    hop_limit = packet.get("hopLimit", 0)
+    hops = hop_start - hop_limit
+
+    if config.notification_sound == "True":
+        schedule_notification_sound()
+
+    message_string = _decode_message_payload(decoded.get("payload"))
+
+    if not ui_state.channel_list:
+        return
+
+    refresh_channels = False
+    refresh_messages = False
+
+    channel_number = packet.get("channel", 0)
+    if not isinstance(channel_number, int):
+        channel_number = 0
+    if channel_number < 0:
+        channel_number = 0
+
+    packet_from = packet.get("from")
+    if packet.get("to") == interface_state.myNodeNum and packet_from is not None:
+        if packet_from not in ui_state.channel_list:
+            ui_state.channel_list.append(packet_from)
+            if packet_from not in ui_state.all_messages:
+                ui_state.all_messages[packet_from] = []
+            update_node_info_in_db(packet_from, chat_archived=False)
+            refresh_channels = True
+        channel_number = ui_state.channel_list.index(packet_from)
+
+    if channel_number >= len(ui_state.channel_list):
+        channel_number = 0
+
+    channel_id = ui_state.channel_list[channel_number]
+
+    if ui_state.selected_channel >= len(ui_state.channel_list):
+        ui_state.selected_channel = 0
+
+    if channel_id != ui_state.channel_list[ui_state.selected_channel]:
+        add_notification(channel_number)
+        refresh_channels = True
+    else:
+        refresh_messages = True
+
+    if packet_from is None:
+        logging.debug("Skipping TEXT_MESSAGE_APP packet with missing 'from' field")
+        return
+
+    message_from_string = get_name_from_database(packet_from, type="short") + ":"
+    add_new_message(channel_id, f"{config.message_prefix} [{hops}] {message_from_string} ", message_string)
+
+    if refresh_channels:
+        draw_channel_list()
+    if refresh_messages:
+        draw_messages_window(True)
+
+    save_message_to_db(channel_id, packet_from, message_string)
 
 
 def on_receive(packet: Dict[str, Any], interface: Any) -> None:
-    """
-    Handles an incoming packet from a Meshtastic interface.
-
-    Args:
-        packet: The received Meshtastic packet as a dictionary.
-        interface: The Meshtastic interface instance that received the packet.
-    """
-    with app_state.lock:
-        # Update packet log
-        ui_state.packet_buffer.append(packet)
-        if len(ui_state.packet_buffer) > 20:
-            # Trim buffer to 20 packets
-            ui_state.packet_buffer = ui_state.packet_buffer[-20:]
-
-        if ui_state.display_log:
-            draw_packetlog_win()
-
-            if ui_state.current_window == 4:
-                menu_state.need_redraw = True
-        try:
-            if "decoded" not in packet:
-                return
-
-            # Assume any incoming packet could update the last seen time for a node
-            changed = refresh_node_list()
-            if changed:
-                draw_node_list()
-
-            if packet["decoded"]["portnum"] == "NODEINFO_APP":
-                if "user" in packet["decoded"] and "longName" in packet["decoded"]["user"]:
-                    maybe_store_nodeinfo_in_db(packet)
-
-            elif packet["decoded"]["portnum"] == "TEXT_MESSAGE_APP":
-                hop_start = packet.get('hopStart', 0)
-                hop_limit = packet.get('hopLimit', 0)
-
-                hops = hop_start - hop_limit
-
-
-                if config.notification_sound == "True":
-                    schedule_notification_sound()
-
-                message_bytes = packet["decoded"]["payload"]
-                message_string = message_bytes.decode("utf-8")
-
-                refresh_channels = False
-                refresh_messages = False
-
-                if packet.get("channel"):
-                    channel_number = packet["channel"]
-                else:
-                    channel_number = 0
-
-                if packet["to"] == interface_state.myNodeNum:
-                    if packet["from"] in ui_state.channel_list:
-                        pass
-                    else:
-                        ui_state.channel_list.append(packet["from"])
-                        if packet["from"] not in ui_state.all_messages:
-                            ui_state.all_messages[packet["from"]] = []
-                        update_node_info_in_db(packet["from"], chat_archived=False)
-                        refresh_channels = True
-
-                    channel_number = ui_state.channel_list.index(packet["from"])
-
-                channel_id = ui_state.channel_list[channel_number]
-
-                if channel_id != ui_state.channel_list[ui_state.selected_channel]:
-                    add_notification(channel_number)
-                    refresh_channels = True
-                else:
-                    refresh_messages = True
-
-                # Add received message to the messages list
-                message_from_id = packet["from"]
-                message_from_string = get_name_from_database(message_from_id, type="short") + ":"
-
-                add_new_message(channel_id, f"{config.message_prefix} [{hops}] {message_from_string} ", message_string)
-
-                if refresh_channels:
-                    draw_channel_list()
-                if refresh_messages:
-                    draw_messages_window(True)
-
-                save_message_to_db(channel_id, message_from_id, message_string)
-
-        except KeyError as e:
-            logging.error(f"Error processing packet: {e}")
+    """Enqueue packet to be processed on the main curses thread."""
+    if app_state.ui_shutdown:
+        return
+    if not isinstance(packet, dict):
+        return
+    try:
+        app_state.rx_queue.put(packet)
+    except Exception:
+        logging.exception("Failed to enqueue packet for UI processing")

contact/ui/contact_ui.py

@@ -1,9 +1,11 @@
 import curses
 import logging
+from queue import Empty
 import time
 import traceback
 from typing import Union
 
+from contact.message_handlers.rx_handler import process_receive_event
 from contact.utilities.utils import get_channels, get_readable_duration, get_time_ago, refresh_node_list
 from contact.settings import settings_menu
 from contact.message_handlers.tx_handler import send_message, send_traceroute
@@ -12,17 +14,14 @@ from contact.ui.colors import get_color
 from contact.utilities.db_handler import get_name_from_database, update_node_info_in_db, is_chat_archived
 from contact.utilities.input_handlers import get_list_input
 from contact.utilities.i18n import t
-from contact.utilities.emoji_utils import normalize_message_text
 import contact.ui.default_config as config
 import contact.ui.dialog
 from contact.ui.nav_utils import move_main_highlight, draw_main_arrows, get_msg_window_lines, wrap_text
-from contact.utilities.singleton import ui_state, interface_state, menu_state
+from contact.utilities.singleton import ui_state, interface_state, menu_state, app_state
 
 
 MIN_COL = 1  # "effectively zero" without breaking curses
-RESIZE_DEBOUNCE_MS = 250
 root_win = None
-nodes_pad = None
 
 
 # Draw arrows for a specific window id (0=channel,1=messages,2=nodes).
@@ -65,72 +64,6 @@ def paint_frame(win, selected: bool) -> None:
     win.refresh()
 
 
-def get_channel_row_color(index: int) -> int:
-    if index == ui_state.selected_channel:
-        if ui_state.current_window == 0:
-            return get_color("channel_list", reverse=True)
-        return get_color("channel_selected")
-    return get_color("channel_list")
-
-
-def get_node_row_color(index: int, highlight: bool = False) -> int:
-    node_num = ui_state.node_list[index]
-    node = interface_state.interface.nodesByNum.get(node_num, {})
-    color = "node_list"
-    if node.get("isFavorite"):
-        color = "node_favorite"
-    if node.get("isIgnored"):
-        color = "node_ignored"
-    reverse = index == ui_state.selected_node and (ui_state.current_window == 2 or highlight)
-    return get_color(color, reverse=reverse)
-
-
-def refresh_node_selection(old_index: int = -1, highlight: bool = False) -> None:
-    if nodes_pad is None or not ui_state.node_list:
-        return
-
-    width = max(0, nodes_pad.getmaxyx()[1] - 4)
-
-    if 0 <= old_index < len(ui_state.node_list):
-        try:
-            nodes_pad.chgat(old_index, 1, width, get_node_row_color(old_index, highlight=highlight))
-        except curses.error:
-            pass
-
-    if 0 <= ui_state.selected_node < len(ui_state.node_list):
-        try:
-            nodes_pad.chgat(ui_state.selected_node, 1, width, get_node_row_color(ui_state.selected_node, highlight=highlight))
-        except curses.error:
-            pass
-
-    ui_state.start_index[2] = max(0, ui_state.selected_node - (nodes_win.getmaxyx()[0] - 3))
-    refresh_pad(2)
-    draw_window_arrows(2)
-
-
-def refresh_main_window(window_id: int, selected: bool) -> None:
-    if window_id == 0:
-        paint_frame(channel_win, selected=selected)
-        if ui_state.channel_list:
-            width = max(0, channel_pad.getmaxyx()[1] - 4)
-            channel_pad.chgat(ui_state.selected_channel, 1, width, get_channel_row_color(ui_state.selected_channel))
-        refresh_pad(0)
-    elif window_id == 1:
-        paint_frame(messages_win, selected=selected)
-        refresh_pad(1)
-    elif window_id == 2:
-        paint_frame(nodes_win, selected=selected)
-        if ui_state.node_list and nodes_pad is not None:
-            width = max(0, nodes_pad.getmaxyx()[1] - 4)
-            nodes_pad.chgat(ui_state.selected_node, 1, width, get_node_row_color(ui_state.selected_node))
-        refresh_pad(2)
-
-
-def get_node_display_name(node_num: int, node: dict) -> str:
-    user = node.get("user") or {}
-    return user.get("longName") or get_name_from_database(node_num, "long")
-
-
 def handle_resize(stdscr: curses.window, firstrun: bool) -> None:
     """Handle terminal resize events and redraw the UI accordingly."""
     global messages_pad, messages_win, nodes_pad, nodes_win, channel_pad, channel_win, packetlog_win, entry_win
@@ -230,22 +163,22 @@ def handle_resize(stdscr: curses.window, firstrun: bool) -> None:
         pass
 
 
-def drain_resize_events(input_win: curses.window) -> Union[str, int, None]:
-    """Wait for resize events to settle and preserve one queued non-resize key."""
-    input_win.timeout(RESIZE_DEBOUNCE_MS)
-    try:
-        while True:
-            try:
-                next_char = input_win.get_wch()
-            except curses.error:
-                return None
+def drain_receive_queue(max_events: int = 200) -> None:
+    processed = 0
+    while processed < max_events:
+        try:
+            packet = app_state.rx_queue.get(block=False)
+        except Empty:
+            return
+        except Exception:
+            logging.exception("Error while draining receive queue")
+            return
 
-            if next_char == curses.KEY_RESIZE:
-                continue
-
-            return next_char
-    finally:
-        input_win.timeout(-1)
+        try:
+            process_receive_event(packet)
+        except Exception:
+            logging.exception("Error while processing receive event")
+        processed += 1
 
 
 def main_ui(stdscr: curses.window) -> None:
@@ -255,20 +188,20 @@ def main_ui(stdscr: curses.window) -> None:
 
     root_win = stdscr
     input_text = ""
-    queued_char = None
     stdscr.keypad(True)
     get_channels()
     handle_resize(stdscr, True)
+    entry_win.timeout(75)
 
     while True:
+        drain_receive_queue()
         draw_text_field(entry_win, f"Message: {(input_text or '')[-(stdscr.getmaxyx()[1] - 10):]}", get_color("input"))
 
         # Get user input from entry window
-        if queued_char is None:
+        try:
             char = entry_win.get_wch()
-        else:
-            char = queued_char
-            queued_char = None
+        except curses.error:
+            continue
 
         # draw_debug(f"Keypress: {char}")
 
@@ -316,16 +249,13 @@ def main_ui(stdscr: curses.window) -> None:
 
         elif char == curses.KEY_RESIZE:
             input_text = ""
-            queued_char = drain_resize_events(entry_win)
             handle_resize(stdscr, False)
-            continue
+            entry_win.timeout(75)
 
         elif char == chr(4):  # Ctrl + D to delete current channel or node
             handle_ctrl_d()
 
-        elif char == chr(31) or (
-            char == "/" and not input_text and ui_state.current_window in (0, 2)
-        ):  # Ctrl + / or / to search in channel/node lists
+        elif char == chr(31):  # Ctrl + / to search
             handle_ctrl_fslash()
 
         elif char == chr(11):  # Ctrl + K for Help
@@ -429,16 +359,31 @@ def handle_leftright(char: int) -> None:
     delta = -1 if char == curses.KEY_LEFT else 1
     old_window = ui_state.current_window
     ui_state.current_window = (ui_state.current_window + delta) % 3
-    if ui_state.single_pane_mode:
-        handle_resize(root_win, False)
-        return
+    handle_resize(root_win, False)
 
-    refresh_main_window(old_window, selected=False)
+    if old_window == 0:
+        paint_frame(channel_win, selected=False)
+        refresh_pad(0)
+    if old_window == 1:
+        paint_frame(messages_win, selected=False)
+        refresh_pad(1)
+    elif old_window == 2:
+        paint_frame(nodes_win, selected=False)
+        refresh_pad(2)
 
     if not ui_state.single_pane_mode:
         draw_window_arrows(old_window)
 
-    refresh_main_window(ui_state.current_window, selected=True)
+    if ui_state.current_window == 0:
+        paint_frame(channel_win, selected=True)
+        refresh_pad(0)
+    elif ui_state.current_window == 1:
+        paint_frame(messages_win, selected=True)
+        refresh_pad(1)
+    elif ui_state.current_window == 2:
+        paint_frame(nodes_win, selected=True)
+        refresh_pad(2)
+
     draw_window_arrows(ui_state.current_window)
 
 
@@ -459,16 +404,31 @@ def handle_function_keys(char: int) -> None:
         return
 
     ui_state.current_window = target
-    if ui_state.single_pane_mode:
-        handle_resize(root_win, False)
-        return
+    handle_resize(root_win, False)
 
-    refresh_main_window(old_window, selected=False)
+    if old_window == 0:
+        paint_frame(channel_win, selected=False)
+        refresh_pad(0)
+    elif old_window == 1:
+        paint_frame(messages_win, selected=False)
+        refresh_pad(1)
+    elif old_window == 2:
+        paint_frame(nodes_win, selected=False)
+        refresh_pad(2)
 
     if not ui_state.single_pane_mode:
         draw_window_arrows(old_window)
 
-    refresh_main_window(ui_state.current_window, selected=True)
+    if ui_state.current_window == 0:
+        paint_frame(channel_win, selected=True)
+        refresh_pad(0)
+    elif ui_state.current_window == 1:
+        paint_frame(messages_win, selected=True)
+        refresh_pad(1)
+    elif ui_state.current_window == 2:
+        paint_frame(nodes_win, selected=True)
+        refresh_pad(2)
+
     draw_window_arrows(ui_state.current_window)
 
 
@@ -520,34 +480,34 @@ def handle_enter(input_text: str) -> str:
 
 
 def handle_f5_key(stdscr: curses.window) -> None:
-    if not ui_state.node_list:
-        return
-
-    def build_node_details() -> tuple[str, list[str]]:
+    node = None
+    try:
         node = interface_state.interface.nodesByNum[ui_state.node_list[ui_state.selected_node]]
+
         message_parts = []
 
         message_parts.append("**📋 Basic Information:**")
         message_parts.append(f"• Device: {node.get('user', {}).get('longName', 'Unknown')}")
         message_parts.append(f"• Short name: {node.get('user', {}).get('shortName', 'Unknown')}")
         message_parts.append(f"• Hardware: {node.get('user', {}).get('hwModel', 'Unknown')}")
-        message_parts.append(f"• Role: {node.get('user', {}).get('role', 'Unknown')}")
-        message_parts.append(f"Public key: {node.get('user', {}).get('publicKey')}")
-        message_parts.append(f"• Node ID: {node.get('num', 'Unknown')}")
 
+        role = f"{node.get('user', {}).get('role', 'Unknown')}"
+        message_parts.append(f"• Role: {role}")
+
+        pk = f"{node.get('user', {}).get('publicKey')}"
+        message_parts.append(f"Public key: {pk}")
+
+        message_parts.append(f"• Node ID: {node.get('num', 'Unknown')}")
         if "position" in node:
             pos = node["position"]
-            has_coords = pos.get("latitude") and pos.get("longitude")
-            if has_coords:
+            if pos.get("latitude") and pos.get("longitude"):
                 message_parts.append(f"• Position: {pos['latitude']:.4f}, {pos['longitude']:.4f}")
             if pos.get("altitude"):
                 message_parts.append(f"• Altitude: {pos['altitude']}m")
-            if has_coords:
-                message_parts.append(f"https://maps.google.com/?q={pos['latitude']:.4f},{pos['longitude']:.4f}")
+            message_parts.append(f"https://maps.google.com/?q={pos['latitude']:.4f},{pos['longitude']:.4f}")
 
         if any(key in node for key in ["snr", "hopsAway", "lastHeard"]):
-            message_parts.append("")
-            message_parts.append("**🌐 Network Metrics:**")
+            message_parts.append("\n**🌐 Network Metrics:**")
 
             if "snr" in node:
                 snr = node["snr"]
@@ -567,13 +527,12 @@ def handle_f5_key(stdscr: curses.window) -> None:
                 hop_emoji = "📡" if hops == 0 else "🔄" if hops == 1 else "⏩"
                 message_parts.append(f"• Hops away: {hop_emoji} {hops}")
 
-            if node.get("lastHeard"):
+            if "lastHeard" in node and node["lastHeard"]:
                 message_parts.append(f"• Last heard: 🕐 {get_time_ago(node['lastHeard'])}")
 
         if node.get("deviceMetrics"):
             metrics = node["deviceMetrics"]
-            message_parts.append("")
-            message_parts.append("**📊 Device Metrics:**")
+            message_parts.append("\n**📊 Device Metrics:**")
 
             if "batteryLevel" in metrics:
                 battery = metrics["batteryLevel"]
@@ -594,128 +553,21 @@ def handle_f5_key(stdscr: curses.window) -> None:
                 air_emoji = "🔴" if air_util > 80 else "🟡" if air_util > 50 else "🟢"
                 message_parts.append(f"• Air utilization TX: {air_emoji} {air_util:.2f}%")
 
-        title = t(
-            "ui.dialog.node_details_title",
-            default="📡 Node Details: {name}",
-            name=node.get("user", {}).get("shortName", "Unknown"),
+        message = "\n".join(message_parts)
+
+        contact.ui.dialog.dialog(
+            t(
+                "ui.dialog.node_details_title",
+                default="📡 Node Details: {name}",
+                name=node.get("user", {}).get("shortName", "Unknown"),
+            ),
+            message,
         )
-        return title, message_parts
-
-    previous_window = ui_state.current_window
-    ui_state.current_window = 4
-    scroll_offset = 0
-    dialog_win = None
-
-    curses.curs_set(0)
-    refresh_node_selection(highlight=True)
-
-    try:
-        while True:
-            curses.update_lines_cols()
-            height, width = curses.LINES, curses.COLS
-            title, message_lines = build_node_details()
-
-            max_line_length = max(len(title), *(len(line) for line in message_lines))
-            dialog_width = min(max(max_line_length + 4, 20), max(10, width - 2))
-            dialog_height = min(max(len(message_lines) + 4, 6), max(6, height - 2))
-            x = max(0, (width - dialog_width) // 2)
-            y = max(0, (height - dialog_height) // 2)
-            viewport_h = max(1, dialog_height - 4)
-            max_scroll = max(0, len(message_lines) - viewport_h)
-            scroll_offset = max(0, min(scroll_offset, max_scroll))
-
-            if dialog_win is None:
-                dialog_win = curses.newwin(dialog_height, dialog_width, y, x)
-            else:
-                dialog_win.erase()
-                dialog_win.refresh()
-                dialog_win.resize(dialog_height, dialog_width)
-                dialog_win.mvwin(y, x)
-
-            dialog_win.keypad(True)
-            dialog_win.bkgd(get_color("background"))
-            dialog_win.attrset(get_color("window_frame"))
-            dialog_win.border(0)
-
-            try:
-                dialog_win.addstr(0, 2, title[: max(0, dialog_width - 4)], get_color("settings_default"))
-                hint = f" {ui_state.selected_node + 1}/{len(ui_state.node_list)} "
-                dialog_win.addstr(0, max(2, dialog_width - len(hint) - 2), hint, get_color("commands"))
-            except curses.error:
-                pass
-
-            msg_win = dialog_win.derwin(viewport_h + 2, dialog_width - 2, 1, 1)
-            msg_win.erase()
-
-            for row, line in enumerate(message_lines[scroll_offset : scroll_offset + viewport_h], start=1):
-                trimmed = line[: max(0, dialog_width - 6)]
-                try:
-                    msg_win.addstr(row, 1, trimmed, get_color("settings_default"))
-                except curses.error:
-                    pass
-
-            if len(message_lines) > viewport_h:
-                old_index = ui_state.start_index[4] if len(ui_state.start_index) > 4 else 0
-                while len(ui_state.start_index) <= 4:
-                    ui_state.start_index.append(0)
-                ui_state.start_index[4] = scroll_offset
-                draw_main_arrows(msg_win, len(message_lines) - 1, window=4)
-                ui_state.start_index[4] = old_index
-
-            try:
-                ok_text = " Up/Down: Nodes  PgUp/PgDn: Scroll  Esc: Close "
-                dialog_win.addstr(
-                    dialog_height - 2,
-                    max(1, (dialog_width - len(ok_text)) // 2),
-                    ok_text[: max(0, dialog_width - 2)],
-                    get_color("settings_default", reverse=True),
-                )
-            except curses.error:
-                pass
-
-            dialog_win.refresh()
-            msg_win.noutrefresh()
-            curses.doupdate()
-
-            dialog_win.timeout(200)
-            char = dialog_win.getch()
-
-            if menu_state.need_redraw:
-                menu_state.need_redraw = False
-                continue
-
-            if char in (27, curses.KEY_LEFT, curses.KEY_ENTER, 10, 13, 32):
-                break
-            if char == curses.KEY_UP:
-                old_selected_node = ui_state.selected_node
-                ui_state.selected_node = (ui_state.selected_node - 1) % len(ui_state.node_list)
-                scroll_offset = 0
-                refresh_node_selection(old_selected_node, highlight=True)
-            elif char == curses.KEY_DOWN:
-                old_selected_node = ui_state.selected_node
-                ui_state.selected_node = (ui_state.selected_node + 1) % len(ui_state.node_list)
-                scroll_offset = 0
-                refresh_node_selection(old_selected_node, highlight=True)
-            elif char == curses.KEY_PPAGE:
-                scroll_offset = max(0, scroll_offset - viewport_h)
-            elif char == curses.KEY_NPAGE:
-                scroll_offset = min(max_scroll, scroll_offset + viewport_h)
-            elif char == curses.KEY_HOME:
-                scroll_offset = 0
-            elif char == curses.KEY_END:
-                scroll_offset = max_scroll
-            elif char == curses.KEY_RESIZE:
-                continue
+        curses.curs_set(1)  # Show cursor again
+        handle_resize(stdscr, False)
 
     except KeyError:
         return
-    finally:
-        if dialog_win is not None:
-            dialog_win.erase()
-            dialog_win.refresh()
-        ui_state.current_window = previous_window
-        curses.curs_set(1)
-        handle_resize(stdscr, False)
 
 
 def handle_ctrl_t(stdscr: curses.window) -> None:
@@ -772,7 +624,6 @@ def handle_backtick(stdscr: curses.window) -> None:
     ui_state.current_window = 4
     settings_menu(stdscr, interface_state.interface)
     ui_state.current_window = previous_window
-    ui_state.single_pane_mode = config.single_pane_mode.lower() == "true"
     curses.curs_set(1)
     refresh_node_list()
     handle_resize(stdscr, False)
@@ -1014,7 +865,7 @@ def draw_messages_window(scroll_to_bottom: bool = False) -> None:
 
         row = 0
         for prefix, message in messages:
-            full_message = normalize_message_text(f"{prefix}{message}")
+            full_message = f"{prefix}{message}"
             wrapped_lines = wrap_text(full_message, messages_win.getmaxyx()[1] - 2)
             msg_line_count += len(wrapped_lines)
             messages_pad.resize(msg_line_count, messages_win.getmaxyx()[1])
@@ -1056,8 +907,10 @@ def draw_node_list() -> None:
     if ui_state.current_window != 2 and ui_state.single_pane_mode:
         return
 
-    if nodes_pad is None:
-        nodes_pad = curses.newpad(1, 1)
+    # This didn't work, for some reason an error is thown on startup, so we just create the pad every time
+    # if nodes_pad is None:
+    # nodes_pad = curses.newpad(1, 1)
+    nodes_pad = curses.newpad(1, 1)
 
     try:
         nodes_pad.erase()
@@ -1071,12 +924,28 @@ def draw_node_list() -> None:
         node = interface_state.interface.nodesByNum[node_num]
         secure = "user" in node and "publicKey" in node["user"] and node["user"]["publicKey"]
         status_icon = "🔐" if secure else "🔓"
-        node_name = get_node_display_name(node_num, node)
+        node_name = get_name_from_database(node_num, "long")
+        user_name = node["user"]["shortName"]
+
+        uptime_str = ""
+        if "deviceMetrics" in node and "uptimeSeconds" in node["deviceMetrics"]:
+            uptime_str = f" / Up: {get_readable_duration(node['deviceMetrics']['uptimeSeconds'])}"
+
+        last_heard_str = f"  ■  {get_time_ago(node['lastHeard'])}" if node.get("lastHeard") else ""
+        hops_str = f"  ■  Hops: {node['hopsAway']}" if "hopsAway" in node else ""
+        snr_str = f"  ■  SNR: {node['snr']}dB" if node.get("hopsAway") == 0 and "snr" in node else ""
 
         # Future node name custom formatting possible
         node_str = f"{status_icon} {node_name}"
         node_str = node_str.ljust(box_width - 4)[: box_width - 2]
-        nodes_pad.addstr(i, 1, node_str, get_node_row_color(i))
+        color = "node_list"
+        if "isFavorite" in node and node["isFavorite"]:
+            color = "node_favorite"
+        if "isIgnored" in node and node["isIgnored"]:
+            color = "node_ignored"
+        nodes_pad.addstr(
+            i, 1, node_str, get_color(color, reverse=ui_state.selected_node == i and ui_state.current_window == 2)
+        )
 
     paint_frame(nodes_win, selected=(ui_state.current_window == 2))
     nodes_win.refresh()

contact/ui/control_ui.py

@@ -56,13 +56,6 @@ config_folder = os.path.abspath(config.node_configs_file_path)
 # Load translations
 field_mapping, help_text = parse_ini_file(translation_file)
 
-def _is_repeated_field(field_desc) -> bool:
-    """Return True if the protobuf field is repeated. 
-       Protobuf 6.31.0 and later use an is_repeated property, while older versions compare against the label field.
-       """
-    if hasattr(field_desc, "is_repeated"):
-        return bool(field_desc.is_repeated)
-    return field_desc.label == field_desc.LABEL_REPEATED
 
 def reload_translations() -> None:
     global translation_file, field_mapping, help_text
@@ -571,7 +564,7 @@ def settings_menu(stdscr: object, interface: object) -> None:
                         new_value = new_value == "True" or new_value is True
                     menu_state.start_index.pop()
 
-                elif _is_repeated_field(field):  # Handle repeated field - Not currently used
+                elif field.label == field.LABEL_REPEATED:  # Handle repeated field - Not currently used
                     new_value = get_repeated_input(current_value)
                     new_value = current_value if new_value is None else new_value.split(", ")
                     menu_state.start_index.pop()

contact/ui/ui_state.py

@@ -1,3 +1,4 @@
+from queue import SimpleQueue
 from typing import Any, Union, List, Dict
 from dataclasses import dataclass, field
 
@@ -44,3 +45,5 @@ class InterfaceState:
 @dataclass
 class AppState:
     lock: Any = None
+    rx_queue: SimpleQueue = field(default_factory=SimpleQueue)
+    ui_shutdown: bool = False

contact/ui/user_config.py

@@ -566,7 +566,7 @@ def save_json(file_path: str, data: Dict[str, Any]) -> None:
     formatted_json = config.format_json_single_line_arrays(data)
     with open(file_path, "w", encoding="utf-8") as f:
         f.write(formatted_json)
-    config.reload_config()
+    setup_colors(reinit=True)
     reload_translations(data.get("language"))
 
 

contact/utilities/config_io.py

@@ -9,17 +9,6 @@ from meshtastic.util import camel_to_snake, snake_to_camel, fromStr
 # defs are from meshtastic/python/main
 
 
-def _is_repeated_field(field_desc) -> bool:
-    """Return True if the protobuf field is repeated.
-
-    Protobuf 6.31.0+ exposes `is_repeated`, while older versions require
-    checking `label == LABEL_REPEATED`.
-    """
-    if hasattr(field_desc, "is_repeated"):
-        return bool(field_desc.is_repeated)
-    return field_desc.label == field_desc.LABEL_REPEATED
-
-
 def traverseConfig(config_root, config, interface_config) -> bool:
     """Iterate through current config level preferences and either traverse deeper if preference is a dict or set preference"""
     snake_name = camel_to_snake(config_root)
@@ -100,7 +89,7 @@ def setPref(config, comp_name, raw_val) -> bool:
             return False
 
     # repeating fields need to be handled with append, not setattr
-    if not _is_repeated_field(pref):
+    if pref.label != pref.LABEL_REPEATED:
         try:
             if config_type.message_type is not None:
                 config_values = getattr(config_part, config_type.name)

contact/utilities/emoji_utils.py

@@ -1,54 +0,0 @@
-"""Helpers for normalizing emoji sequences in width-sensitive message rendering."""
-
-# Strip zero-width and presentation modifiers that make terminal cell width inconsistent.
-EMOJI_MODIFIER_REPLACEMENTS = {
-    "\u200d": "",
-    "\u20e3": "",
-    "\ufe0e": "",
-    "\ufe0f": "",
-    "\U0001F3FB": "",
-    "\U0001F3FC": "",
-    "\U0001F3FD": "",
-    "\U0001F3FE": "",
-    "\U0001F3FF": "",
-}
-
-_EMOJI_MODIFIER_TRANSLATION = str.maketrans(EMOJI_MODIFIER_REPLACEMENTS)
-_REGIONAL_INDICATOR_START = ord("\U0001F1E6")
-_REGIONAL_INDICATOR_END = ord("\U0001F1FF")
-
-
-def _regional_indicator_to_letter(char: str) -> str:
-    return chr(ord("A") + ord(char) - _REGIONAL_INDICATOR_START)
-
-
-def _normalize_flag_emoji(text: str) -> str:
-    """Convert flag emoji built from regional indicators into ASCII country codes."""
-    normalized = []
-    index = 0
-
-    while index < len(text):
-        current = text[index]
-        current_ord = ord(current)
-
-        if _REGIONAL_INDICATOR_START <= current_ord <= _REGIONAL_INDICATOR_END and index + 1 < len(text):
-            next_char = text[index + 1]
-            next_ord = ord(next_char)
-            if _REGIONAL_INDICATOR_START <= next_ord <= _REGIONAL_INDICATOR_END:
-                normalized.append(_regional_indicator_to_letter(current))
-                normalized.append(_regional_indicator_to_letter(next_char))
-                index += 2
-                continue
-
-        normalized.append(current)
-        index += 1
-
-    return "".join(normalized)
-
-
-def normalize_message_text(text: str) -> str:
-    """Strip modifiers and rewrite flag emoji into stable terminal-friendly text."""
-    if not text:
-        return text
-
-    return _normalize_flag_emoji(text.translate(_EMOJI_MODIFIER_TRANSLATION))

contact/utilities/telemetry_beautifier.py

@@ -68,19 +68,19 @@ def get_chunks(data):
                 # Leave it string as last resort
                 value = value
 
-        # Python 3.9-compatible alternative to match/case.
-        if key == "uptime_seconds":
+        match key:
             # convert seconds to hours, for our sanity
-            value = round(value / 60 / 60, 1)
-        elif key in ("longitude_i", "latitude_i"):
+            case "uptime_seconds":
+                value = round(value / 60 / 60, 1)
             # Convert position to degrees (humanize), as per Meshtastic protobuf comment for this telemetry
             # truncate to 6th digit after floating point, which would be still accurate
-            value = round(value * 1e-7, 6)
-        elif key == "wind_direction":
+            case "longitude_i" | "latitude_i":
+                value = round(value * 1e-7, 6)
             # Convert wind direction from degrees to abbreviation
-            value = humanize_wind_direction(value)
-        elif key == "time":
-            value = datetime.datetime.fromtimestamp(int(value)).strftime("%d.%m.%Y %H:%m")
+            case "wind_direction":
+                value = humanize_wind_direction(value)
+            case "time":
+                value = datetime.datetime.fromtimestamp(int(value)).strftime("%d.%m.%Y %H:%m")
 
         if key in sensors:
             parsed+= f"{sensors[key.strip()]['icon']}{value}{sensors[key]['unit']}  "

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "contact"
-version = "1.4.22"
+version = "1.4.14"
 description = "This Python curses client for Meshtastic is a terminal-based client designed to manage device settings, enable mesh chat communication, and handle configuration backups and restores."
 authors = [
     {name = "Ben Lipsey",email = "ben@pdxlocations.com"}