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from dataclasses import asdict
import sys
from paho.mqtt import publish
import aranet4
def buildMsgs(readings, topic):
return [
(topic + "temperature", readings["temperature"]),
(topic + "pressure", readings["pressure"]),
(topic + "humidity", readings["humidity"]),
(topic + "co2", readings["co2"]),
(topic + "battery", readings["battery"])
]
def readArg(argv, key, default, error="Invalid value"):
if key in argv:
idx = argv.index(key) + 1
if idx >= len(argv):
print(error)
raise Exception(error)
return argv[idx]
return default
def main(argv):
if len(argv) < 3:
print("Missing device address, topic base and/or hostname.")
argv[0] = "?"
if "help" in argv or "?" in argv:
print("Usage: python publish.py DEVICE_ADDRESS HOSTNAME TOPIC_BASE [OPTIONS]")
print(" -P <port> Broker port")
print(" -u <user> Auth user name")
print(" -p <password> Auth user password")
print("")
return
device_mac = argv[0]
host = argv[1]
topic = argv[2]
port = readArg(argv, "-P", "1883")
user = readArg(argv, "-u", "")
pwd = readArg(argv, "-p", "")
auth = None
if len(user) > 0:
auth = {"username":user}
if len(pwd) > 0:
auth["password"] = pwd
if topic[-1] != "/":
topic += "/"
current = aranet4.client.get_current_readings(device_mac)
print("Publishing results...")
publish.multiple(buildMsgs(asdict(current), topic), hostname=host, port=int(port), auth=auth)
if __name__== "__main__":
main(sys.argv[1:])
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