Add nodes command (#44)

Co-authored-by: Geoff Whittington <geoff.whittington@gmail.com>

plugin_loader.py

@@ -13,6 +13,7 @@ def load_plugins():
     from plugins.telemetry_plugin import Plugin as TelemetryPlugin
     from plugins.weather_plugin import Plugin as WeatherPlugin
     from plugins.help_plugin import Plugin as HelpPlugin
+    from plugins.nodes_plugin import Plugin as NodesPlugin
 
     global plugins
     if active_plugins:
@@ -26,6 +27,7 @@ def load_plugins():
         TelemetryPlugin(),
         WeatherPlugin(),
         HelpPlugin(),
+        NodesPlugin(),
     ]
 
     for plugin in plugins:

plugins/base_plugin.py

@@ -28,7 +28,7 @@ class BasePlugin(ABC):
     def get_matrix_commands(self):
         return [self.plugin_name]
 
-    async def send_matrix_message(self, room_id, message):
+    async def send_matrix_message(self, room_id, message, formatted=True):
         from matrix_utils import connect_matrix
 
         matrix_client = await connect_matrix()
@@ -38,7 +38,7 @@ class BasePlugin(ABC):
             message_type="m.room.message",
             content={
                 "msgtype": "m.text",
-                "format": "org.matrix.custom.html",
+                "format": "org.matrix.custom.html" if formatted else None,
                 "body": message,
                 "formatted_body": markdown.markdown(message),
             },

plugins/nodes_plugin.py

@@ -0,0 +1,77 @@
+import re
+import statistics
+from plugins.base_plugin import BasePlugin
+from datetime import datetime
+
+
+def get_relative_time(timestamp):
+    now = datetime.now()
+    dt = datetime.fromtimestamp(timestamp)
+
+    # Calculate the time difference between the current time and the given timestamp
+    delta = now - dt
+
+    # Extract the relevant components from the time difference
+    days = delta.days
+    seconds = delta.seconds
+
+    # Convert the time difference into a relative timeframe
+    if days > 7:
+        return dt.strftime(
+            "%b %d, %Y"
+        )  # Return the timestamp in a specific format if it's older than 7 days
+    elif days >= 1:
+        return f"{days} days ago"
+    elif seconds >= 3600:
+        hours = seconds // 3600
+        return f"{hours} hours ago"
+    elif seconds >= 60:
+        minutes = seconds // 60
+        return f"{minutes} minutes ago"
+    else:
+        return "Just now"
+
+
+class Plugin(BasePlugin):
+    plugin_name = "nodes"
+
+    @property
+    def description(self):
+        return """Show mesh radios and node data
+
+$shortname $longname / $devicemodel / $battery $voltage / $snr / $lastseen
+"""
+
+    def generate_response(self):
+        from meshtastic_utils import connect_meshtastic
+
+        meshtastic_client = connect_meshtastic()
+
+        response = f"Nodes: {len(meshtastic_client.nodes)}\n"
+
+        for node, info in meshtastic_client.nodes.items():
+            if "snr" in info:
+                snr = f"{info['snr']} dB"
+            else:
+                snr = ""
+            response += f"{info['user']['shortName']} {info['user']['longName']} / {info['user']['hwModel']} / {info['deviceMetrics']['batteryLevel']}% {info['deviceMetrics']['voltage']}V / {snr} / {get_relative_time(info['lastHeard'])}\n"
+
+        return response
+
+    async def handle_meshtastic_message(
+        self, packet, formatted_message, longname, meshnet_name
+    ):
+        return False
+
+    async def handle_room_message(self, room, event, full_message):
+        from matrix_utils import connect_matrix
+
+        full_message = full_message.strip()
+        if not self.matches(full_message):
+            return False
+
+        response = await self.send_matrix_message(
+            room_id=room.room_id, message=self.generate_response(), formatted=False
+        )
+
+        return True