Add better connection management

examples/connection_events_example.py

@@ -0,0 +1,87 @@
+"""
+Example demonstrating connection events and auto-reconnect functionality.
+"""
+import asyncio
+import logging
+import sys
+from meshcore import MeshCore
+from meshcore.events import EventType
+
+logging.basicConfig(level=logging.DEBUG)
+
+async def main():
+    mc = None
+    # Example with auto-reconnect enabled
+    try:
+        # mc = await MeshCore.create_serial(
+        #     port="/dev/cu.usbmodem1101", 
+        #     auto_reconnect=True, 
+        #     max_reconnect_attempts=3,
+        #     debug=True
+        # )
+        
+        # mc = await MeshCore.create_tcp(
+        #     host="192.168.1.22",
+        #     port=5000, 
+        #     auto_reconnect=True, 
+        #     max_reconnect_attempts=sys.maxsize,
+        #     debug=True
+        # )
+        
+        mc = await MeshCore.create_ble(
+            address="92849669", 
+            auto_reconnect=True, 
+            max_reconnect_attempts=3,
+            debug=True
+        )
+        
+        # Subscribe to connection events
+        async def on_connected(event):
+            print(f"✅ Connected! Info: {event.payload}")
+            if event.payload.get('reconnected'):
+                print("🔄 This was a reconnection!")
+            
+        async def on_disconnected(event):
+            print(f"❌ Disconnected! Reason: {event.payload.get('reason')}")
+            if event.payload.get('max_attempts_exceeded'):
+                print("⚠️  Max reconnection attempts exceeded")
+        
+        mc.subscribe(EventType.CONNECTED, on_connected)
+        mc.subscribe(EventType.DISCONNECTED, on_disconnected)
+        
+        # Check connection status
+        
+        print("\n📱 Disconnect your device now to test auto-reconnect...")
+        print("Press Ctrl+C to exit")
+        
+        # Keep running and periodically test the connection
+        while True:
+            await asyncio.sleep(2)
+            print(f"Connected: {mc.is_connected}")
+            if mc.is_connected:
+                try:
+                    print("🔄 Testing connection by getting battery...")
+                    result = await mc.commands.get_bat()
+                    
+                    if result.type == EventType.ERROR:
+                        print(f"❌ Error getting battery: {result.payload}")
+                    else:
+                        print("✅ Connection test successfeul")
+                except Exception as e:
+                    print(f"❌ Connection test failed: {e}")
+                    # This should trigger the disconnect detection
+            else:
+                print("⏳ Waiting for reconnection...")
+        
+    except KeyboardInterrupt:
+        print("\n🛑 Exiting...")
+    except ConnectionError as e:
+        print(f"❌ Failed to connect: {e}")
+    finally:
+        if mc is not None:
+            await mc.disconnect()
+            print(f"Connected after disconnect: {mc.is_connected}")
+            print(f"Connected after disconnect: {mc.is_connected}")
+
+if __name__ == "__main__":
+    asyncio.run(main())