Simplify HA automations for adjusting font/font size

[rohankapoorcom]

Hey @aderusha,

I noticed that most of the time when HA is updating the text for a specific object on the HASP, it has to recompute the font size and send that as well. I created a couple of scripts to:

• generalize the computation of the font size
• generalize the object update text by first calling the previous script and then publishing the text update to MQTT

This simplifies the number of operations that have to be done in an individual automation by half, improving readability and removing copying/pasting of values.

Here's an example:

Before:

    - service: mqtt.publish
      data:
        topic: 'hasp/plate01/command/p[2].b[7].font'
        payload_template: '{% if states.sensor.weather_current.state|length <= 6 -%}3{% elif (states.sensor.weather_current.state|length > 6) and (states.sensor.weather_current.state|length <= 10) %}2{% elif (states.sensor.weather_current.state|length > 10) and (states.sensor.weather_current.state|length <= 15) %}1{% else %}0{%- endif %}'

    - service: mqtt.publish
      data:
        topic: 'hasp/plate01/command/p[2].b[7].txt'
        payload_template: '"{{states.sensor.weather_current.state|wordwrap(20, wrapstring="\\r")}}"' 

After:

    - service: script.hasp_plate01_update_message
      data:
        objectId: 'p[2].b[7]'
        text: '"{{states.sensor.weather_current.state|wordwrap(20, wrapstring="\\r")}}"'

[aderusha]

HOLY COW this is amazing. I'm on the road this week which is going to result in a little more time required for me to test all of this but I FRICKEN LOVE IT and it simplifies a lot of things. I didn't know scripts worked this way! Thanks @rohankapoorcom, I'll push to get this all rolled into my test environment ASAP and then merge this fantastic work into the project.

[rohankapoorcom]

Let me know if you run into any problems, or if I missed any spots. I extracted and and generalized this functionality from my environment (which was tested) but (my environment) also contains many other changes related to this stuff.

[rohankapoorcom]

@aderusha I've discovered a few bugs with this current approach:

1. First of all there are a few typos when I migrated things from my repo to this generic version
2. HA doesn't allow scripts to get called in parallel so this approach leads to a lot of dropped messages being sent to the HASP and a mess of warning messages in the logs. The solution according to this post is a python script. I'll refactor with that and update this (hopefully tomorrow).