Provide the ability to set the mqtt %prefix% values

[frank-pet]

prefix1, prefix2, and prefix3 are hard coded. There should be a mechanism to provide user supplied prefixes, as this is sometimes necessary to fit tasmota devices into previously implemented topic hierarchies.

These constants currently appear in three places in the python scripts:

UI/dialogs/main.py:417:                        ) and possible_topic not in ("tele", "stat", "cmnd"):
mqtt.py:18:             DEFAULT_PREFIXES = ["tele", "stat"]
tasmota/device.py:47:         self.topic_prefixes = TopicPrefixes("cmnd", "stat", "tele")

This would be a new feature.

[barbudor]

Prefixes, as well as FullTopic, are in the tasmota discovery message so if TDM auto-configure itself from there, it would work

{
...
  "ft": "%prefix%/%topic%/",
  "tp": [
    "cmnd",
    "stat",
    "tele"
  ],
...

Hi @jziolkowski what is the status on using the discovery messages for auto-configration ?