from bleak import BleakScanner, BleakClient

NODE_BLUETOOTH_SERVICE_UUID = "E1898FF7-5063-4441-a6eb-526073B00001"
NODE_BLUETOOTH_RX_UUID = "E1898FF7-5063-4441-a6eb-526073B00002"
NODE_BLUETOOTH_TX_UUID = "E1898FF7-5063-4441-a6eb-526073B00003"


class MeshNode:
    def __init__(self, client: BleakClient):
        self.client = client
        self.client.pair()
        
    async def discover():
        """Find a mesh node via Bluetooth
        """
        devices = await BleakScanner.discover(service_uuids=[NODE_BLUETOOTH_SERVICE_UUID], timeout=5)
        
        # no device was found
        if len(devices) == 0:
            return None
        
        device = await BleakScanner.find_device_by_address(devices[0].address, timeout=5)
        return MeshNode(BleakClient(device))