Merge pull request #306 from pdxlocations:delete-channels

Enhance channel management by adding 'enabled' state to channels and updating role handling in save_changes.

contact/__main__.py

@@ -258,7 +258,7 @@ def start() -> None:
 
     if fatal_error is not None:
         print("Fatal error:", fatal_error)
-        traceback.print_exc()
+        traceback.print_exception(type(fatal_error), fatal_error, fatal_error.__traceback__)
         sys.exit(1)
 
     if interrupted:

contact/localisations/en.ini

@@ -160,6 +160,7 @@ node_ignored, "Node ignored", ""
 
 [Channels.channel]
 title, "Channels"
+enabled, "Enabled", "Enable or disable this channel without clearing its name or encryption key."
 channel_num, "Channel number", "The index number of this channel."
 psk, "PSK", "The channel's encryption key."
 name, "Name", "The channel's name."

contact/ui/contact_ui.py

@@ -35,6 +35,8 @@ from contact.ui.nav_utils import (
     wrap_text,
     truncate_with_ellipsis,
     pad_to_width,
+    text_width,
+    slice_to_width,
 )
 from contact.utilities.singleton import ui_state, interface_state, menu_state, app_state
 
@@ -43,6 +45,8 @@ MIN_COL = 1  # "effectively zero" without breaking curses
 RESIZE_DEBOUNCE_MS = 250
 root_win = None
 nodes_pad = None
+entry_win = None
+input_text = ""
 
 
 def refresh_log_viewer() -> None:
@@ -243,6 +247,8 @@ def compute_widths(total_w: int, focus: int):
 
 
 def paint_frame(win, selected: bool) -> None:
+    if win is not entry_win and ui_state.input_focused:
+        selected = False
     win.attrset(get_color("window_frame_selected") if selected else get_color("window_frame"))
     win.box()
     win.attrset(get_color("window_frame"))
@@ -491,6 +497,8 @@ def main_ui(stdscr: curses.window) -> None:
 
     root_win = stdscr
     input_text = ""
+    ui_state.input_cursor = 0
+    ui_state.input_focused = False
     queued_char = None
     stdscr.keypad(True)
     get_channels()
@@ -555,8 +563,7 @@ def main_ui(stdscr: curses.window) -> None:
 
         with app_state.lock:
             process_pending_ui_updates(stdscr)
-        entry_display = f"{ui_state.reply_context}{input_text or ''}"
-        draw_text_field(entry_win, f"Message: {entry_display[-(stdscr.getmaxyx()[1] - 10):]}", get_color("input"))
+        draw_message_input(input_text)
 
         # Get user input from entry window
         try:
@@ -596,6 +603,7 @@ def main_ui(stdscr: curses.window) -> None:
 
         elif char in (chr(curses.KEY_ENTER), chr(10), chr(13)):
             input_text = handle_enter(input_text)
+            ui_state.input_cursor = min(ui_state.input_cursor, len(input_text))
 
         elif char in (curses.KEY_F4, chr(20)):  # Ctrl + t and F4 for Traceroute
             handle_ctrl_t(stdscr)
@@ -603,9 +611,14 @@ def main_ui(stdscr: curses.window) -> None:
         elif char == curses.KEY_F5:
             handle_f5_key(stdscr)
 
-        elif char in (curses.KEY_BACKSPACE, chr(127)):
+        elif char in (curses.KEY_BACKSPACE, chr(127), chr(8)):
             input_text = handle_backspace(entry_win, input_text)
 
+        elif char == curses.KEY_DC:
+            focus_message_input()
+            position = ui_state.input_cursor
+            input_text = input_text[:position] + input_text[position + 1:]
+
         elif char in (curses.KEY_F12, "`"):  # ` Launch the settings interface
             handle_backtick(stdscr)
 
@@ -619,7 +632,6 @@ def main_ui(stdscr: curses.window) -> None:
                 entry_win.erase()
 
         elif char == curses.KEY_RESIZE:
-            input_text = ""
             queued_char = drain_resize_events(entry_win)
             handle_resize(stdscr, False)
             continue
@@ -645,15 +657,66 @@ def main_ui(stdscr: curses.window) -> None:
             break
 
         else:
-            # Append typed character to input text
-            if isinstance(char, str):
-                input_text += char
-            else:
-                input_text += chr(char)
+            if isinstance(char, str) and char.isprintable():
+                input_text = insert_input_text(input_text, char)
+
+
+def focus_message_input() -> None:
+    if ui_state.input_focused:
+        return
+    # Keep the conversation visible in single-pane mode while composing.
+    handle_function_keys(curses.KEY_F2)
+    ui_state.input_focused = True
+    refresh_message_highlight()
+    refresh_main_window(1, selected=False)
+
+
+def leave_message_input() -> None:
+    ui_state.input_focused = False
+    ui_state.current_window = 1
+    refresh_message_highlight()
+    refresh_main_window(1, selected=True)
+
+
+def insert_input_text(draft: str, text: str) -> str:
+    focus_message_input()
+    position = min(ui_state.input_cursor, len(draft))
+    ui_state.input_cursor = position + len(text)
+    return draft[:position] + text + draft[position:]
+
+
+def draw_message_input(draft: str) -> None:
+    """Redraw the whole input row and scroll it to keep the draft cursor visible."""
+    width = entry_win.getmaxyx()[1]
+    prompt = slice_to_width("Message: ", max(0, width - 3))
+    available = max(1, width - 2 - text_width(prompt))
+    ui_state.input_cursor = max(0, min(ui_state.input_cursor, len(draft)))
+    content = ui_state.reply_context + draft
+    cursor = len(ui_state.reply_context) + ui_state.input_cursor
+    start = cursor
+    used = 0
+    while start > 0 and used + text_width(content[start - 1]) < available:
+        start -= 1
+        used += text_width(content[start])
+    visible = slice_to_width(content[start:], available)
+    draw_text_field(entry_win, prompt + visible, get_color("input"))
+    paint_frame(entry_win, selected=ui_state.input_focused)
+    try:
+        hint = " Ctrl+K Help "
+        if width >= len(hint) + 4:
+            entry_win.addstr(0, width - len(hint) - 2, hint, get_color("commands"))
+        curses.curs_set(1 if ui_state.input_focused else 0)
+        entry_win.move(1, min(width - 2, 1 + text_width(prompt) + used))
+    except curses.error:
+        pass
+    entry_win.refresh()
 
 
 def handle_up() -> None:
     """Handle key up events to scroll the current window."""
+    if ui_state.input_focused:
+        leave_message_input()
+        return
     if ui_state.current_window == 0:
         scroll_channels(-1)
     elif ui_state.current_window == 1:
@@ -664,6 +727,9 @@ def handle_up() -> None:
 
 def handle_down() -> None:
     """Handle key down events to scroll the current window."""
+    if ui_state.input_focused:
+        leave_message_input()
+        return
     if ui_state.current_window == 0:
         scroll_channels(1)
     elif ui_state.current_window == 1:
@@ -674,6 +740,9 @@ def handle_down() -> None:
 
 def handle_home() -> None:
     """Handle home key events to select the first item in the current window."""
+    if ui_state.input_focused:
+        ui_state.input_cursor = 0
+        return
     if ui_state.current_window == 0:
         select_channel(0)
     elif ui_state.current_window == 1:
@@ -688,6 +757,9 @@ def handle_home() -> None:
 
 def handle_end() -> None:
     """Handle end key events to select the last item in the current window."""
+    if ui_state.input_focused:
+        ui_state.input_cursor = len(input_text)
+        return
     if ui_state.current_window == 0:
         select_channel(len(ui_state.channel_list) - 1)
     elif ui_state.current_window == 1:
@@ -728,6 +800,9 @@ def handle_pagedown() -> None:
 def handle_leftright(char: int) -> None:
     """Handle left/right key events to switch between windows."""
     delta = -1 if char == curses.KEY_LEFT else 1
+    if ui_state.input_focused:
+        ui_state.input_cursor = max(0, min(len(input_text), ui_state.input_cursor + delta))
+        return
     old_window = ui_state.current_window
     ui_state.current_window = (ui_state.current_window + delta) % 3
     if ui_state.single_pane_mode:
@@ -748,6 +823,8 @@ def handle_leftright(char: int) -> None:
 
 def handle_function_keys(char: int) -> None:
     """Switch windows using F1/F2/F3."""
+    if ui_state.input_focused:
+        leave_message_input()
     if char == curses.KEY_F1:
         target = 0
     elif char == curses.KEY_F2:
@@ -1107,14 +1184,12 @@ def handle_ctrl_t(stdscr: curses.window) -> None:
 
 
 def handle_backspace(entry_win: curses.window, input_text: str) -> str:
-    """Handle backspace key events to remove the last character from input text."""
-    if input_text:
-        input_text = input_text[:-1]
-        y, x = entry_win.getyx()
-        entry_win.move(y, x - 1)
-        entry_win.addch(" ")  #
-        entry_win.move(y, x - 1)
-    entry_win.refresh()
+    """Delete before the draft cursor; the next frame redraws the entire line."""
+    focus_message_input()
+    position = ui_state.input_cursor
+    if position > 0:
+        input_text = input_text[:position - 1] + input_text[position:]
+        ui_state.input_cursor -= 1
     return input_text
 
 
@@ -1134,74 +1209,83 @@ def handle_backtick(stdscr: curses.window) -> None:
         handle_resize(stdscr, False)
         return
 
-    options = ["Local settings"]
-    remote_node_num = None
+    selected_node_num = None
     if ui_state.node_list:
-        remote_node_num = ui_state.node_list[ui_state.selected_node]
-        options.append(f"Remote admin: {get_name_from_database(remote_node_num)}")
-    choice = get_list_input("Open settings for", None, options)
-    if choice == "Local settings":
-        settings_menu(stdscr, interface)
-    elif remote_node_num is not None:
-        wait_win = None
+        selected_node_num = ui_state.node_list[ui_state.selected_node]
 
-        def remote_status(message: Optional[str]) -> None:
-            nonlocal wait_win
-            if message is None:
+    # The local node is already the target for normal settings; do not offer a
+    # misleading remote-admin choice when it is selected in the node pane.
+    if selected_node_num == interface_state.myNodeNum:
+        settings_menu(stdscr, interface)
+    else:
+        options = ["Local settings"]
+        remote_node_num = None
+        if selected_node_num is not None:
+            remote_node_num = selected_node_num
+            options.append(f"Remote admin: {get_name_from_database(remote_node_num)}")
+        choice = get_list_input("Open settings for", None, options)
+        if choice == "Local settings":
+            settings_menu(stdscr, interface)
+        elif remote_node_num is not None:
+            wait_win = None
+
+            def remote_status(message: Optional[str]) -> None:
+                nonlocal wait_win
+                if message is None:
+                    if wait_win is not None:
+                        wait_win.erase()
+                        wait_win.refresh()
+                        wait_win = None
+                    return
+                if wait_win is None:
+                    wait_win = show_remote_admin_wait(stdscr, get_name_from_database(remote_node_num))
+                update_remote_admin_wait(wait_win, message)
+
+            def remote_cancel_requested() -> bool:
+                if wait_win is None:
+                    return False
+                try:
+                    wait_win.timeout(0)
+                    return wait_win.getch() == 27
+                finally:
+                    wait_win.timeout(-1)
+
+            try:
+                remote_node = interface.getNode(remote_node_num, False)
+                verify_remote_admin(
+                    remote_node,
+                    status_callback=remote_status,
+                    cancel_callback=remote_cancel_requested,
+                )
+                remote_status(None)
+                settings_menu(
+                    stdscr,
+                    interface,
+                    # Settings requests configs explicitly; avoid getNode's
+                    # implicit channel request racing that setup.
+                    node=remote_node,
+                    remote=True,
+                    status_callback=remote_status,
+                    cancel_callback=remote_cancel_requested,
+                )
+            except RemoteAdminCancelled:
+                logging.info("Remote admin request cancelled for %s", remote_node_num)
+                remote_status(None)
+            except (SystemExit, PermissionError) as exc:
+                logging.warning("Remote admin was rejected for %s: %s", remote_node_num, exc)
                 if wait_win is not None:
                     wait_win.erase()
                     wait_win.refresh()
-                    wait_win = None
-                return
-            if wait_win is None:
-                wait_win = show_remote_admin_wait(stdscr, get_name_from_database(remote_node_num))
-            update_remote_admin_wait(wait_win, message)
-
-        def remote_cancel_requested() -> bool:
-            if wait_win is None:
-                return False
-            try:
-                wait_win.timeout(0)
-                return wait_win.getch() == 27
-            finally:
-                wait_win.timeout(-1)
-
-        try:
-            remote_node = interface.getNode(remote_node_num, False)
-            verify_remote_admin(
-                remote_node,
-                status_callback=remote_status,
-                cancel_callback=remote_cancel_requested,
-            )
-            remote_status(None)
-            settings_menu(
-                stdscr,
-                interface,
-                # Settings requests configs explicitly; avoid getNode's
-                # implicit channel request racing that setup.
-                node=remote_node,
-                remote=True,
-                status_callback=remote_status,
-                cancel_callback=remote_cancel_requested,
-            )
-        except RemoteAdminCancelled:
-            logging.info("Remote admin request cancelled for %s", remote_node_num)
-            remote_status(None)
-        except (SystemExit, PermissionError) as exc:
-            logging.warning("Remote admin was rejected for %s: %s", remote_node_num, exc)
-            if wait_win is not None:
-                wait_win.erase()
-                wait_win.refresh()
-            contact.ui.dialog.dialog(
-                "Remote admin rejected",
-                "The selected node did not authorize this admin request.",
-            )
-        except Exception as exc:
-            logging.exception("Remote admin failed for %s", remote_node_num)
-            if wait_win is not None:
-                wait_win.erase()
-                wait_win.refresh()
-            contact.ui.dialog.dialog("Remote admin failed", str(exc))
+                contact.ui.dialog.dialog(
+                    "Remote admin rejected",
+                    "The selected node did not authorize this admin request.",
+                )
+            except Exception as exc:
+                logging.exception("Remote admin failed for %s", remote_node_num)
+                if wait_win is not None:
+                    wait_win.erase()
+                    wait_win.refresh()
+                contact.ui.dialog.dialog("Remote admin failed", str(exc))
     ui_state.current_window = previous_window
     ui_state.single_pane_mode = config.single_pane_mode.lower() == "true"
     curses.curs_set(1)
@@ -1587,7 +1671,7 @@ def refresh_message_highlight() -> None:
     previous_range = ui_state.highlighted_message_range
     width = max(0, messages_win.getmaxyx()[1] - 2)
 
-    if not ui_state.channel_list or ui_state.current_window != 1:
+    if not ui_state.channel_list or ui_state.current_window != 1 or ui_state.input_focused:
         if previous_range:
             start, end, color = previous_range
             for row in range(start, end):

contact/ui/control_ui.py

@@ -97,6 +97,17 @@ def get_translated_header(menu_path: List[str]) -> str:
     return f"{admin_target_label} | {breadcrumb}" if admin_target_label else breadcrumb
 
 
+def get_settings_option_label(option, field_info, menu_path):
+    if menu_path == ["Main Menu", "Channels"] and isinstance(field_info, dict):
+        name = field_info.get("name", (None, ""))[1]
+        if name:
+            return name
+    full_key = ".".join(transform_menu_path(menu_path) + [option])
+    if len(menu_path) == 3 and menu_path[1] == "Channels" and option == "enabled":
+        return field_mapping.get(full_key, "Enabled")
+    return field_mapping.get(full_key, option)
+
+
 def display_menu() -> tuple[object, object]:
     # if help_win:
     #     min_help_window_height = 6
@@ -140,7 +151,7 @@ def display_menu() -> tuple[object, object]:
         field_info = menu_state.current_menu[option]
         current_value = field_info[1] if isinstance(field_info, tuple) else ""
         full_key = ".".join(transformed_path + [option])
-        display_name = field_mapping.get(full_key, option)
+        display_name = get_settings_option_label(option, field_info, menu_state.menu_path)
 
         if full_key.startswith("config.network.ipv4_config.") and option in {"ip", "gateway", "subnet", "dns"}:
             if isinstance(current_value, int):
@@ -719,7 +730,7 @@ def settings_menu(
                 full_key = ".".join(transformed_path + [selected_option])
 
                 # Fetch human-readable name from field_mapping
-                human_readable_name = field_mapping.get(full_key, selected_option)
+                human_readable_name = get_settings_option_label(selected_option, field_info, menu_state.menu_path)
 
                 if field is None and selected_option in ("ringtone", "messages"):
                     is_ringtone = selected_option == "ringtone"
@@ -779,6 +790,11 @@ def settings_menu(
                     new_value = current_value if new_values is None else [base64.b64decode(key) for key in new_values]
                     menu_state.start_index.pop()
 
+                elif field is None and selected_option == "enabled" and menu_state.menu_path[1] == "Channels":
+                    new_value = get_list_input(human_readable_name, str(current_value), ["True", "False"])
+                    new_value = new_value == "True" or new_value is True
+                    menu_state.start_index.pop()
+
                 elif field.type == 8:  # Handle boolean type
                     new_value = get_list_input(human_readable_name, str(current_value), ["True", "False"])
                     if new_value == "Not Set":
@@ -820,8 +836,15 @@ def settings_menu(
 
                 else:  # Handle other field types
                     input_type = get_input_type_for_field(field)
+                    allow_empty = (
+                        selected_option == "name"
+                        and len(menu_state.menu_path) == 3
+                        and menu_state.menu_path[1] == "Channels"
+                        and menu_state.menu_path[2] != "Channel 1"
+                    )
                     new_value = get_text_input(
-                        f"{human_readable_name} is currently: {current_value}", selected_option, input_type
+                        f"{human_readable_name} is currently: {current_value}", selected_option, input_type,
+                        allow_empty=allow_empty,
                     )
                     new_value = current_value if new_value is None else new_value
                     menu_state.start_index.pop()

contact/ui/menus.py

@@ -93,6 +93,10 @@ def generate_menu_from_protobuf(interface: object, node: Any = None, include_app
             current_channel = node.getChannelByChannelIndex(i)
             if current_channel:
                 channel_config = extract_fields(channel, current_channel.settings)
+                channel_config = {
+                    "enabled": (None, current_channel.role != channel_pb2.Channel.Role.DISABLED),
+                    **channel_config,
+                }
                 menu_structure["Main Menu"]["Channels"][f"Channel {i + 1}"] = channel_config
 
     # Add Radio Settings

contact/ui/ui_state.py

@@ -25,6 +25,8 @@ class ChatUIState:
     selected_message: int = 0
     selected_node: int = 0
     current_window: int = 0
+    input_focused: bool = False
+    input_cursor: int = 0
     last_sent_time: float = 0.0
     last_traceroute_time: float = 0.0
     selected_index: int = 0

contact/utilities/input_handlers.py

@@ -38,7 +38,7 @@ def invalid_input(window: curses.window, message: str, redraw_func: Optional[cal
     curses.curs_set(1)
 
 
-def get_text_input(prompt: str, selected_config: str, input_type: str) -> Optional[str]:
+def get_text_input(prompt: str, selected_config: str, input_type: str, *, allow_empty: bool = False) -> Optional[str]:
     """Handles user input with wrapped text for long prompts."""
 
     def redraw_input_win():
@@ -127,6 +127,9 @@ def get_text_input(prompt: str, selected_config: str, input_type: str) -> Option
             menu_state.need_redraw = True
 
             if not user_input.strip():
+                if allow_empty:
+                    user_input = ""
+                    break
                 invalid_input(
                     input_win,
                     t("ui.error.value_empty", default="Value cannot be empty."),

contact/utilities/save_to_radio.py

@@ -2,7 +2,6 @@ from meshtastic.protobuf import channel_pb2
 from google.protobuf.message import Message
 import logging
 import base64
-import time
 
 DEVICE_REBOOT_KEYS = {"button_gpio", "buzzer_gpio", "role", "rebroadcast_mode"}
 POWER_REBOOT_KEYS = {
@@ -100,22 +99,14 @@ def save_changes(interface, modified_settings, menu_state, node=None):
             # Filter out empty keys
             valid_keys = [key for key in admin_keys if key and key.strip() and key != b""]
 
-            if not valid_keys:
-                logging.warning("No valid admin keys provided. Skipping admin key update.")
-            else:
-                # Clear existing keys if needed
-                if security_config.admin_key:
-                    logging.info("Clearing existing admin keys...")
-                    del security_config.admin_key[:]
-                    node.writeConfig("security")
-                    time.sleep(2)  # Give time for device to process
-
-                # Append new keys
-                for key in valid_keys:
-                    logging.info(f"Adding admin key: {key}")
-                    security_config.admin_key.append(key)
-                node.writeConfig("security")
-                logging.info("Admin keys updated successfully!")
+            # Update the repeated field in memory, then send one complete
+            # security config. Sending an empty list first can revoke the key
+            # authorizing this remote-admin session before a second write can
+            # restore the remaining keys.
+            del security_config.admin_key[:]
+            security_config.admin_key.extend(valid_keys)
+            node.writeConfig("security")
+            logging.info("Admin keys updated successfully (%d key(s)).", len(valid_keys))
 
             # Backup 'admin_key' before removing it
             admin_key_backup = modified_settings.get("admin_key", None)
@@ -169,7 +160,15 @@ def save_changes(interface, modified_settings, menu_state, node=None):
 
             channel = node.channels[channel_num]
             for key, value in modified_settings.items():
-                if key == "psk":  # Special case: decode Base64 for psk
+                if key == "enabled":
+                    if not value:
+                        channel.role = channel_pb2.Channel.Role.DISABLED
+                    elif channel.role == channel_pb2.Channel.Role.DISABLED:
+                        channel.role = (
+                            channel_pb2.Channel.Role.PRIMARY if channel_num == 0
+                            else channel_pb2.Channel.Role.SECONDARY
+                        )
+                elif key == "psk":  # Special case: decode Base64 for psk
                     channel.settings.psk = base64.b64decode(value)
                 elif key in {"position_precision", "is_muted"}:
                     # These fields belong to ChannelSettings.module_settings,
@@ -178,11 +177,6 @@ def save_changes(interface, modified_settings, menu_state, node=None):
                 else:
                     setattr(channel.settings, key, value)  # Use setattr for other fields
 
-            if channel_num == 0:
-                channel.role = channel_pb2.Channel.Role.PRIMARY
-            else:
-                channel.role = channel_pb2.Channel.Role.SECONDARY
-
             node.writeChannel(channel_num)
 
             logging.info(f"Updated Channel {channel_num} in {config_category}")

contact/utilities/utils.py

@@ -1,6 +1,8 @@
 import datetime
+import logging
 import re
 import time
+from functools import lru_cache
 from typing import Optional, Union
 from google.protobuf.message import DecodeError
 
@@ -10,14 +12,41 @@ import contact.ui.default_config as config
 from contact.utilities.singleton import ui_state, interface_state
 import contact.utilities.telemetry_beautifier as tb
 
+NEW_MODEM_PRESET_NAMES = {
+    14: "TINY_FAST",
+    15: "TINY_SLOW",
+    16: "MEDIUM_TURBO",
+}
+
+
+@lru_cache(maxsize=None)
+def _get_modem_preset_name(modem_preset_enum: int) -> str:
+    try:
+        return config_pb2.Config.LoRaConfig.ModemPreset.Name(modem_preset_enum)
+    except ValueError:
+        compatibility_name = NEW_MODEM_PRESET_NAMES.get(modem_preset_enum)
+        if compatibility_name is not None:
+            logging.warning(
+                "Modem preset %s is newer than the installed Meshtastic protobuf schema; "
+                "using compatibility name %s",
+                modem_preset_enum,
+                compatibility_name,
+            )
+            return compatibility_name
+
+        logging.warning(
+            "Modem preset %s is not recognized by the installed Meshtastic protobuf schema",
+            modem_preset_enum,
+        )
+        return f"UNKNOWN_PRESET_{modem_preset_enum}"
+
 
 def _get_channel_name(device_channel, node):
     if device_channel.settings.name:
         return device_channel.settings.name
 
-    lora_config = node.localConfig.lora
-    modem_preset_enum = lora_config.modem_preset
-    modem_preset_string = config_pb2._CONFIG_LORACONFIG_MODEMPRESET.values_by_number[modem_preset_enum].name
+    modem_preset_enum = node.localConfig.lora.modem_preset
+    modem_preset_string = _get_modem_preset_name(modem_preset_enum)
     return convert_to_camel_case(modem_preset_string)
 
 

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "contact"
-version = "1.6.6"
+version = "1.6.7"
 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"}

tests/test_contact_ui.py

@@ -64,6 +64,25 @@ class ContactUiTests(unittest.TestCase):
         )
         settings_menu.assert_not_called()
 
+    def test_handle_backtick_opens_local_settings_for_selected_local_node(self) -> None:
+        stdscr = mock.Mock()
+        ui_state.current_window = 2
+        ui_state.node_list = [123]
+        ui_state.selected_node = 0
+        contact_ui.interface_state.myNodeNum = 123
+        contact_ui.interface_state.interface = mock.Mock()
+
+        with mock.patch.object(contact_ui.curses, "curs_set"):
+            with mock.patch.object(contact_ui, "get_list_input") as chooser:
+                with mock.patch.object(contact_ui, "settings_menu") as settings_menu:
+                    with mock.patch.object(contact_ui, "get_channels"):
+                        with mock.patch.object(contact_ui, "refresh_node_list"):
+                            with mock.patch.object(contact_ui, "handle_resize"):
+                                contact_ui.handle_backtick(stdscr)
+
+        chooser.assert_not_called()
+        settings_menu.assert_called_once_with(stdscr, contact_ui.interface_state.interface)
+
     def test_show_remote_admin_wait_draws_status(self) -> None:
         stdscr = mock.Mock()
         stdscr.getmaxyx.return_value = (24, 100)

tests/test_main.py

@@ -240,7 +240,7 @@ class MainRuntimeTests(unittest.TestCase):
         with mock.patch.object(entrypoint.sys, "argv", ["contact"]):
             with mock.patch.object(entrypoint.curses, "wrapper", side_effect=RuntimeError("boom")):
                 with mock.patch.object(entrypoint.curses, "endwin") as endwin:
-                    with mock.patch.object(entrypoint.traceback, "print_exc") as print_exc:
+                    with mock.patch.object(entrypoint.traceback, "print_exception") as print_exception:
                         with mock.patch("builtins.print") as print_mock:
                             with mock.patch.object(entrypoint.sys, "exit", side_effect=SystemExit(1)) as exit_mock:
                                 with self.assertRaises(SystemExit) as raised:
@@ -248,6 +248,9 @@ class MainRuntimeTests(unittest.TestCase):
 
         self.assertEqual(raised.exception.code, 1)
         endwin.assert_called_once_with()
-        print_exc.assert_called_once_with()
+        exception_type, exception, exception_traceback = print_exception.call_args_list[-1].args
+        self.assertIs(exception_type, RuntimeError)
+        self.assertEqual(str(exception), "boom")
+        self.assertIsNotNone(exception_traceback)
         print_mock.assert_any_call("Fatal error:", mock.ANY)
         exit_mock.assert_called_once_with(1)

tests/test_menus.py

@@ -1,12 +1,30 @@
 from types import SimpleNamespace
 import unittest
 
-from meshtastic.protobuf import config_pb2, module_config_pb2
+from meshtastic.protobuf import channel_pb2, config_pb2, module_config_pb2
 
 from contact.ui.menus import generate_menu_from_protobuf
 
 
 class MenusTests(unittest.TestCase):
+    def test_channels_include_enabled_state_and_display_names(self):
+        from contact.ui.control_ui import get_settings_option_label
+
+        channels = [
+            channel_pb2.Channel(role=channel_pb2.Channel.PRIMARY, settings=channel_pb2.ChannelSettings(name="Local")),
+            channel_pb2.Channel(role=channel_pb2.Channel.DISABLED, settings=channel_pb2.ChannelSettings(name="Local")),
+            channel_pb2.Channel(role=channel_pb2.Channel.DISABLED),
+        ]
+        node = SimpleNamespace(
+            localConfig=config_pb2.Config(), moduleConfig=module_config_pb2.ModuleConfig(),
+            getChannelByChannelIndex=lambda index: channels[index] if index < len(channels) else None,
+        )
+        menu = generate_menu_from_protobuf(None, node=node)["Main Menu"]["Channels"]
+        self.assertEqual(menu["Channel 1"]["enabled"], (None, True))
+        self.assertEqual(menu["Channel 2"]["enabled"], (None, False))
+        labels = [get_settings_option_label(key, value, ["Main Menu", "Channels"]) for key, value in menu.items()]
+        self.assertEqual(labels, ["Local", "Local", "Channel 3"])
+
     def test_main_menu_includes_factory_reset_config_after_factory_reset(self) -> None:
         local_node = SimpleNamespace(
             localConfig=config_pb2.Config(),

tests/test_message_input.py

@@ -0,0 +1,95 @@
+import unittest
+from contextlib import ExitStack
+from unittest import mock
+
+from contact.ui import contact_ui
+from contact.utilities.singleton import ui_state
+from tests.test_support import reset_singletons
+
+
+class MessageInputTests(unittest.TestCase):
+    def setUp(self):
+        reset_singletons()
+        ui_state.current_window = 1
+        for name in ("refresh_message_highlight", "refresh_main_window", "get_color"):
+            patcher = mock.patch.object(contact_ui, name, return_value=1)
+            patcher.start()
+            self.addCleanup(patcher.stop)
+        self.addCleanup(reset_singletons)
+
+    def test_keyboard_loop_sends_edited_draft_after_resize(self):
+        win = mock.Mock()
+        win.get_wch.side_effect = [
+            "a", "b", "c", contact_ui.curses.KEY_LEFT,
+            contact_ui.curses.KEY_DC, "d", contact_ui.curses.KEY_BACKSPACE,
+            "e", contact_ui.curses.KEY_RESIZE, "\n", "\x1b",
+        ]
+        with ExitStack() as stack:
+            stack.enter_context(mock.patch.object(contact_ui, "entry_win", win))
+            for name in ("get_channels", "handle_resize", "process_pending_ui_updates", "draw_message_input"):
+                stack.enter_context(mock.patch.object(contact_ui, name))
+            stack.enter_context(mock.patch.object(contact_ui, "interface_is_connected", return_value=True))
+            stack.enter_context(mock.patch.object(contact_ui, "drain_resize_events", return_value=None))
+            send = stack.enter_context(mock.patch.object(contact_ui, "handle_enter", return_value=""))
+            contact_ui.main_ui(mock.Mock())
+        send.assert_called_once_with("abe")
+        self.assertEqual(contact_ui.input_text, "")
+        self.assertEqual(ui_state.input_cursor, 0)
+
+    def test_typing_focuses_input_and_edits_at_cursor(self):
+        draft = contact_ui.insert_input_text("", "helo")
+        self.assertTrue(ui_state.input_focused)
+        with mock.patch.object(contact_ui, "input_text", draft):
+            contact_ui.handle_leftright(contact_ui.curses.KEY_LEFT)
+        draft = contact_ui.insert_input_text(draft, "l")
+        self.assertEqual(draft, "hello")
+        self.assertEqual(ui_state.input_cursor, 4)
+        draft = contact_ui.handle_backspace(mock.Mock(), draft)
+        self.assertEqual(draft, "helo")
+        self.assertEqual(ui_state.input_cursor, 3)
+
+    def test_up_and_down_return_to_messages_without_scrolling(self):
+        for handler in (contact_ui.handle_up, contact_ui.handle_down):
+            ui_state.input_focused = True
+            ui_state.input_cursor = 2
+            with mock.patch.object(contact_ui, "scroll_messages") as scroll:
+                handler()
+            self.assertFalse(ui_state.input_focused)
+            self.assertEqual(ui_state.current_window, 1)
+            self.assertEqual(ui_state.input_cursor, 2)
+            scroll.assert_not_called()
+
+    def test_cursor_stops_at_draft_boundaries(self):
+        ui_state.input_focused = True
+        with mock.patch.object(contact_ui, "input_text", "abc"):
+            contact_ui.handle_leftright(contact_ui.curses.KEY_LEFT)
+            self.assertEqual(ui_state.input_cursor, 0)
+            self.assertEqual(contact_ui.handle_backspace(mock.Mock(), "abc"), "abc")
+            contact_ui.handle_end()
+            contact_ui.handle_leftright(contact_ui.curses.KEY_RIGHT)
+            self.assertEqual(ui_state.input_cursor, 3)
+            contact_ui.handle_home()
+            self.assertEqual(ui_state.input_cursor, 0)
+
+    def test_redraw_clears_line_and_shows_text_after_cursor(self):
+        win = mock.Mock()
+        win.getmaxyx.return_value = (3, 30)
+        ui_state.input_focused = True
+        ui_state.input_cursor = 2
+        with mock.patch.object(contact_ui, "entry_win", win), mock.patch.object(contact_ui.curses, "curs_set"):
+            contact_ui.draw_message_input("hello")
+        win.addstr.assert_any_call(1, 1, " " * 28, 1)
+        win.addstr.assert_any_call(1, 1, "Message: hello", 1)
+        win.move.assert_called_once_with(1, 12)
+        contact_ui.get_color.assert_any_call("window_frame_selected")
+
+    def test_long_draft_scrolls_to_cursor_with_reply_context(self):
+        win = mock.Mock()
+        win.getmaxyx.return_value = (3, 24)
+        ui_state.reply_context = "Reply to someone: "
+        ui_state.input_cursor = 20
+        with mock.patch.object(contact_ui, "entry_win", win), mock.patch.object(contact_ui.curses, "curs_set"):
+            contact_ui.draw_message_input("x" * 20)
+        self.assertLess(win.move.call_args.args[1], 23)
+        rendered = [call.args[2] for call in win.addstr.call_args_list if call.args[:2] == (1, 1)][-1]
+        self.assertEqual(rendered, "Message: " + "x" * 12)

tests/test_save_to_radio.py

@@ -1,11 +1,28 @@
 from types import SimpleNamespace
 import unittest
 from unittest import mock
+from meshtastic.protobuf import channel_pb2
 
 from contact.utilities.save_to_radio import save_changes
 
 
 class SaveToRadioTests(unittest.TestCase):
+    def test_channel_enable_disable_and_unrelated_edits_preserve_role(self):
+        for index in (0, 1):
+            interface, node = self.build_interface()
+            node.channels = [channel_pb2.Channel(index=i) for i in range(2)]
+            channel = node.channels[index]
+            path = SimpleNamespace(menu_path=["Main Menu", "Channels", f"Channel {index + 1}"])
+            save_changes(interface, {"name": "Test"}, path)
+            self.assertEqual(channel.role, channel_pb2.Channel.DISABLED)
+            save_changes(interface, {"enabled": True}, path)
+            expected = channel_pb2.Channel.PRIMARY if index == 0 else channel_pb2.Channel.SECONDARY
+            self.assertEqual(channel.role, expected)
+            save_changes(interface, {"enabled": False}, path)
+            self.assertEqual(channel.role, channel_pb2.Channel.DISABLED)
+            self.assertEqual(channel.settings.name, "Test")
+            self.assertEqual(node.writeChannel.call_args_list, [mock.call(index)] * 3)
+
     def build_interface(self):
         node = mock.Mock()
         node.localConfig = SimpleNamespace(
@@ -55,6 +72,20 @@ class SaveToRadioTests(unittest.TestCase):
 
         self.assertTrue(reconnect_required)
 
+    def test_save_changes_replaces_remote_admin_keys_in_one_write(self) -> None:
+        interface, node = self.build_interface()
+        key_one = b"1" * 32
+        key_two = b"2" * 32
+        key_three = b"3" * 32
+        node.localConfig.security.admin_key = [key_one, key_two, key_three]
+        menu_state = SimpleNamespace(menu_path=["Main Menu", "Radio Settings", "Security"])
+
+        reconnect_required = save_changes(interface, {"admin_key": [key_one, key_two]}, menu_state, node=node)
+
+        self.assertTrue(reconnect_required)
+        self.assertEqual(node.localConfig.security.admin_key, [key_one, key_two])
+        node.writeConfig.assert_called_once_with("security")
+
     def test_save_changes_returns_true_only_for_rebooting_device_fields(self) -> None:
         interface, node = self.build_interface()
         menu_state = SimpleNamespace(menu_path=["Main Menu", "Radio Settings", "Device"])

tests/test_utils.py

@@ -1,10 +1,19 @@
 import unittest
 from unittest import mock
 
+from meshtastic.protobuf import config_pb2
+
 import contact.ui.default_config as config
 from contact.utilities.demo_data import DEMO_LOCAL_NODE_NUM, build_demo_interface
 from contact.utilities.singleton import interface_state, ui_state
-from contact.utilities.utils import add_new_message, get_channels, get_node_list, parse_protobuf
+from contact.utilities.utils import (
+    _get_channel_name,
+    _get_modem_preset_name,
+    add_new_message,
+    get_channels,
+    get_node_list,
+    parse_protobuf,
+)
 
 from tests.test_support import reset_singletons, restore_config, snapshot_config
 
@@ -12,6 +21,7 @@ from tests.test_support import reset_singletons, restore_config, snapshot_config
 class UtilsTests(unittest.TestCase):
     def setUp(self) -> None:
         reset_singletons()
+        _get_modem_preset_name.cache_clear()
         self.saved_config = snapshot_config("node_sort")
 
     def tearDown(self) -> None:
@@ -60,6 +70,45 @@ class UtilsTests(unittest.TestCase):
         self.assertIn("MediumFast", ui_state.all_messages)
         self.assertIn("Another Channel", ui_state.all_messages)
 
+    def test_get_channel_name_handles_newer_known_modem_preset(self) -> None:
+        device_channel = mock.Mock()
+        device_channel.settings.name = ""
+        node = mock.Mock()
+        node.localConfig.lora.modem_preset = 14
+
+        with mock.patch("contact.utilities.utils.logging.warning") as warning:
+            self.assertEqual(_get_channel_name(device_channel, node), "TinyFast")
+
+        warning.assert_called_once()
+
+    def test_get_channel_name_handles_unknown_modem_preset(self) -> None:
+        device_channel = mock.Mock()
+        device_channel.settings.name = ""
+        node = mock.Mock()
+        node.localConfig.lora.modem_preset = 99
+
+        with mock.patch("contact.utilities.utils.logging.warning") as warning:
+            self.assertEqual(_get_channel_name(device_channel, node), "UnknownPreset99")
+
+        warning.assert_called_once()
+
+    def test_get_channel_name_prefers_public_protobuf_enum_over_compatibility_map(self) -> None:
+        device_channel = mock.Mock()
+        device_channel.settings.name = ""
+        node = mock.Mock()
+        node.localConfig.lora.modem_preset = 14
+
+        with mock.patch.object(
+            config_pb2.Config.LoRaConfig.ModemPreset,
+            "Name",
+            return_value="TINY_FAST",
+        ) as enum_name:
+            with mock.patch("contact.utilities.utils.logging.warning") as warning:
+                self.assertEqual(_get_channel_name(device_channel, node), "TinyFast")
+
+        enum_name.assert_called_once_with(14)
+        warning.assert_not_called()
+
     def test_get_channels_rebuilds_renamed_channels_and_preserves_messages(self) -> None:
         interface = build_demo_interface()
         interface.localNode.channels[0].settings.name = "Renamed Channel"