predavalnice-kontroler/extron_audio_matrix/extron_audio_matrix_telnet_control.py

58 lines
2.5 KiB
Python

import asyncio
import time
import aiomqtt
import telnetlib3
from extron_audio_matrix_telnet_interpreter import *
async def extron_audio_telnet_status(client, reader):
while True:
output = await reader.readuntil(b']')
# EAMValue(action, io_type, line_id, value)
raw_response: str = output.decode().strip()
print("Received: " + raw_response + " from Extron")
parsed = eam_telnet_code_to_field(raw_response)
if parsed == None:
continue # TODO alert for errors
#print(f"Updating topic [{parsed[0]}] with value [{parsed[1]}]")
await client.publish(f"p1/audio_matrix/status/test", payload='test')
async def extron_audio_telnet_control(client, writer):
await client.subscribe("p1/audio_matrix/#")
async with client.messages() as msgs:
async for mesg in msgs:
print(mesg.topic.value)
if mesg.topic.matches('p1/audio_matrix/+/command/#'):
# format: <pred>/<audio_matrix>/[input/output]_[%02number]/command/<cmd>
_cmd = mesg.topic.value.split("/")[-1]
_payload = mesg.payload.decode()
_fullio = mesg.topic.value.split("/")[-3] # TODO is there a better way to do this?
_io, _id = _fullio.split("_", maxsplit=2)
ind = int(_id)
cmd = ActionType.Gain if _cmd == "GAIN" else (ActionType.Mute if _cmd == "MUTE" else None)
io = IOType.Input if _io == "input" else (IOType.Output if _io == "output" else None)
extronCmd = field_to_eam_telnet_code(EAMValue(cmd, io, ind, _payload))
print(f" Received update: [{mesg.topic.value}] with value [{_payload}]")
print(f"Sending following command to Extron: [{extronCmd.strip()}]..")
writer.write(extronCmd)
await asyncio.sleep(0.2)
pass
# TODO add initial pull
async def shell(reader, writer):
async with aiomqtt.Client('localhost', 1883) as client:
task_status_query = asyncio.create_task(extron_audio_telnet_status(client, writer, reader))
task_control = asyncio.create_task(extron_audio_telnet_control(client, writer))
await asyncio.gather(task_control)
if __name__ == '__main__':
loop = asyncio.get_event_loop()
#coro = telnetlib3.open_connection('localhost', 1234, shell=shell)
coro = telnetlib3.open_connection('192.168.192.14', 23, shell=shell)
reader, writer = loop.run_until_complete(coro)
loop.run_until_complete(writer.protocol.waiter_closed)