mirror of
https://github.com/PiBrewing/craftbeerpi4.git
synced 2024-12-23 22:14:56 +01:00
75 lines
2.3 KiB
Python
75 lines
2.3 KiB
Python
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import asyncio
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from asyncio_mqtt import Client, MqttError, Will
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from contextlib import AsyncExitStack, asynccontextmanager
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class SatelliteController:
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def __init__(self, cbpi):
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self.cbpi = cbpi
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self.client = None
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async def init(self):
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asyncio.create_task(self.init_client(self.cbpi))
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async def publish(self, topic, message):
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print("MQTT ON")
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await self.client.publish(topic, message, qos=1)
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async def handle_message(self, messages):
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async for message in messages:
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print("FILTERED", message.payload.decode())
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async def handle_unfilterd_message(self, messages):
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async for message in messages:
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print("UNFILTERED", message.payload.decode())
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async def init_client(self, cbpi):
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async def log_messages(messages, template):
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async for message in messages:
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print(template.format(message.payload.decode()))
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async def cancel_tasks(tasks):
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for task in tasks:
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if task.done():
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continue
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task.cancel()
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try:
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await task
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except asyncio.CancelledError:
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pass
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async with AsyncExitStack() as stack:
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tasks = set()
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stack.push_async_callback(cancel_tasks, tasks)
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self.client = Client("localhost", will=Will(topic="cbpi/diconnect", payload="CBPi Server Disconnected"))
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await stack.enter_async_context(self.client)
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topic_filters = (
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"cbpi/sensor/#",
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"cbpi/actor/#"
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)
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for topic_filter in topic_filters:
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# Log all messages that matches the filter
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manager = self.client.filtered_messages(topic_filter)
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messages = await stack.enter_async_context(manager)
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task = asyncio.create_task(self.handle_message(messages))
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tasks.add(task)
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messages = await stack.enter_async_context(self.client.unfiltered_messages())
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task = asyncio.create_task(self.handle_unfilterd_message(messages))
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tasks.add(task)
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await self.client.subscribe("cbpi/#")
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await asyncio.gather(*tasks)
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