Add support to add multiple devices

[fredrike]

The way Home-Assistant works with devices is the following:

• A device can have multiple entities (where an entity is a sensor, a switch, a lamp etc.).
• A device can be assigned to an area.
• A device can be nested under another device (using the via_device property https://github.com/home-assistant/core/pull/19454).

That means that in the Telldus environment each sensor should be its own device and this device should be nested under the Tellstick-device.

This is how the sensor "Vit Inne" in the Tellstick-live integration (Mjövik is the name of my Tellstick-Lite):

I therefore suggest that this plugin sends a binary_sensor that represents the Tellstick like this:

homeassistant/binary_sensor/telldus/ACCA5401B5EA/config

{"name": "Telldus", "payload_off": "offline", "payload_on": "online", "device": {"sw_version": "1.3.1", "name": "telldus", "identifiers": "ACCA5401B5EA", "connections": [["mac", "AC:CA:54:01:B5:EA"]], "model": "tellstick-znet-lite-v2", "manufacturer": "Telldus Technologies"}, "device_class": "connectivity", "state_topic": "telldus/telldus/available", "availability_topic": "telldus/telldus/available", "unique_id": "ACCA5401B5EA_main"}

And that this entities (posted to homeassistant/sensor/telldus/6_1_0/config, homeassistant/sensor/telldus/6_2_0/config & homeassistant/sensor/telldus/ACCA5401B5EA_6_battery/config:

{"unit_of_measurement": "\u00b0C", "json_attributes_topic": "home/sensor/telldus/6_1_0/state", "name": "Vit Inne temp - \u00b0C", "value_template": "{{ value_json.value }}", "device": {"sw_version": "1.3.1", "name": "telldus", "identifiers": "ACCA5401B5EA", "connections": [["mac", "AC:CA:54:01:B5:EA"]], "model": "tellstick-znet-lite-v2", "manufacturer": "Telldus Technologies"}, "device_class": "temperature", "state_topic": "home/sensor/telldus/6_1_0/state", "availability_topic": "telldus/telldus/available", "unique_id": "ACCA5401B5EA_6_1_0"}
{"unit_of_measurement": "%", "json_attributes_topic": "home/sensor/telldus/6_2_0/state", "name": "Vit Inne humidity - %", "value_template": "{{ value_json.value }}", "device": {"sw_version": "1.3.1", "name": "telldus", "identifiers": "ACCA5401B5EA", "connections": [["mac", "AC:CA:54:01:B5:EA"]], "model": "tellstick-znet-lite-v2", "manufacturer": "Telldus Technologies"}, "device_class": "humidity", "state_topic": "home/sensor/telldus/6_2_0/state", "availability_topic": "telldus/telldus/available", "unique_id": "ACCA5401B5EA_6_2_0"}
{"unit_of_measurement": "%", "device": {"sw_version": "1.3.1", "name": "telldus", "identifiers": "ACCA5401B5EA", "connections": [["mac", "AC:CA:54:01:B5:EA"]], "model": "tellstick-znet-lite-v2", "manufacturer": "Telldus Technologies"}, "name": "Vit Inne - Battery", "device_class": "battery", "state_topic": "home/sensor/telldus/ACCA5401B5EA_6_battery/state", "availability_topic": "telldus/telldus/available", "unique_id": "ACCA5401B5EA_ACCA5401B5EA_6_battery"}

Are changed to:

{"unit_of_measurement": "\u00b0C", "json_attributes_topic": "home/sensor/telldus/6_1_0/state", "name": "Vit Inne temp - \u00b0C", "value_template": "{{ value_json.value }}", "device": {"name": "Vit Inne", "identifiers": "ACCA5401B5EA-vit_inne", "connections": [["mac", "AC:CA:54:01:B5:EA"]], "via_device": "ACCA5401B5EA"}, "device_class": "temperature", "state_topic": "home/sensor/telldus/6_1_0/state", "availability_topic": "telldus/telldus/available", "unique_id": "ACCA5401B5EA_6_1_0"}
{"unit_of_measurement": "%", "json_attributes_topic": "home/sensor/telldus/6_2_0/state", "name": "Vit Inne humidity - %", "value_template": "{{ value_json.value }}", "device": {"name": "Vit Inne", "identifiers": "ACCA5401B5EA-vit_inne", "connections": [["mac", "AC:CA:54:01:B5:EA"]], "via_device": "ACCA5401B5EA"}, "device_class": "humidity", "state_topic": "home/sensor/telldus/6_2_0/state", "availability_topic": "telldus/telldus/available", "unique_id": "ACCA5401B5EA_6_2_0"}
{"unit_of_measurement": "%", "device": {"name": "Vit Inne", "identifiers": "ACCA5401B5EA-vit_inne", "connections": [["mac", "AC:CA:54:01:B5:EA"]], "via_device": "ACCA5401B5EA"}, "name": "Vit Inne - Battery", "device_class": "battery", "state_topic": "home/sensor/telldus/ACCA5401B5EA_6_battery/state", "availability_topic": "telldus/telldus/available", "unique_id": "ACCA5401B5EA_ACCA5401B5EA_6_battery"}

I don't know if "model" & "manufacturer" is available at the plugin level but perhaps "model" could represent the type of device.

[fredrike]

ACCA5401B5EA-vit_inne could be created by using slugify just as done here: https://github.com/home-assistant/core/blob/master/homeassistant/util/__init__.py#L47

i.e.

from slugify import slugify

ident = f"{mac}-{slugify(name, separator='_'}"

[fredrike]

@quazzie: your code really looks amazing, I think I might be able to wrap multiple devices together myself..

My idea is to add a helper function for publish_discovery() that uses via_device (I've even documented it now:https://github.com/home-assistant/home-assistant.io/pull/12671 ) https://github.com/quazzie/tellstick-plugin-mqtt-hass/blob/8b3d33af29b7b3a8a0d242048f04d6ad758d9c19/hass_client/Client.py#L414-L437

What do you think of it?

[quazzie]

Thanks! Sorry i have not had time to look at this.

I tried you pr on my dev tellstick, seems to work as you describe. Maybe a problem on HA's end but i think this is a lot more confusing :) I can't see all my tellstick devices in one place, having a hard time finding them all, is it suppose to be like that?

Before i could just go to devices - tellstick and get all my sensors/devices.

[fredrike]

The idea is to go to Integrations -> MQTT and there you can see all Devices..

From one Device you should be able to see Entites and parents..

Look at the Related tab (and hopefully there should be a hierarchy).

Could you upload the test version so I can test it?

[quazzie]

MQTT_Homeassistant-0.85.zip

[fredrike]

Do you want me to make this optional via configuration?

[fredrike]

This is not right:

homeassistant/<type 'type'>/telldus/hub/config {"availability_topic": "telldus/telldus/available", "name": "telldus", "payload_on": "online", "device": {"sw_version": "1.3.1", "name": "telldus", "identifiers": "ACCA5401B5EA", "connections": [["mac", "AC:CA:54:01:B5:EA"]], "model": "tellstick-znet-lite-v2", "manufacturer": "Telldus Technologies"}, "device_class": "connectivity", "state_topic": "telldus/telldus/available", "payload_off": "offline", "unique_id": "ACCA5401B5EA_hub"}

Hm, the hierarchy does not seem to work either..

[quazzie]

MQTT_Homeassistant-0.85.1.zip Fixed <type 'type'> to binary_sensor

[fredrike]

I do think this is the intended way Devices should work. There is hierarchy but it is not shown in the frontend (yet).

What do you think about setting Device.protocol().title() as device.manufacturer?

Also, the device_name used in topic must be sluggified according to: https://www.home-assistant.io/docs/mqtt/discovery/ (node_id)

[fredrike]

Vi kanske ska skippa min unique_id ändring också, det kommer ju ändra alla devices och bli en "Breaking change" på gamla entiteter.

[fredrike]

I've updated the code in my PR..