manipulate entity.state value --- my code works, but is there a way to make it smarter ?

[perlchamp]

hi everybody out there,
i'm talking about displaying and/or modifying the values of an entity. I'm a friend of jinja2 but javascript is not my thing, whyever.
This is a part the working code from home.yaml:

...
rules:
## AUSSENBEREICH WETTER #
  - entity: weather.forecast_home
    element: weather.forecast_home
    state_action:
      - service: floorplan.text_set
        service_data: |
          ${entity.attributes.friendly_name ? entity.attributes.friendly_name + "/Pfalz"  : "--"}
          ${entity.state == "cloudy" ? "bewölkt" : ""}
          ${entity.state == "rainy" ? "regnerisch" : ""}
          ${entity.state ? entity.state : "--"} # this is to get/see the other states, because i don't know all possible states, so i can add them step by step
          ${entity.attributes.temperature ? entity.attributes.temperature + " °C"  : "--"}
          ${entity.attributes.humidity ? entity.attributes.humidity + " %"  : "--"}
          ${entity.attributes.pressure ? entity.attributes.pressure + " hPa"  : "--"}
          ${entity.attributes.wind_speed ? entity.attributes.wind_speed + " km/h"  : "--"}
          ${entity.attributes.uv_index ? entity.attributes.uv_index + " uvi"  : "0 uvi"}

I wanted to display the entity.state in the german language. How said it works. But too much different entity-state. Is there a way to make this code smarter. I did try :

 state_action:
      - service: floorplan.text_set
        service_data: |
          >
          javascript-code...

but this only works with return and then i only can display one value and not the attributes. I'm still a beginner and didn't find some examples for that exactly. Other attempts did not lead to anything, too.
Somebody here, who can help me ?

Many thanks in advance!

so long
Pc

[OzGav]

What about setting up a separate template sensor and using this https://www.home-assistant.io/docs/configuration/templating/#state-translated

[perlchamp]

hi,
thank you. I will try this and report.

[perlchamp]

report:
the documentation is not beginner-friendly, so ... where to save the template, where to write the code. There all about jinja (what i like) but in the file it has to be javascript, so... No !

Is there a way to use 'switch' or some other javascript stuff without using 'return' ?
It has to be javascript ?

generelly:
Is it forbidden here or is you outlawed if you provide an example (code) as an answer?
In the meantime, it should be known that the f.. documentary is beginner-unfriendly.
I don't understand that either. It is better to send an adapted example than to have to answer 1000 questions afterwards, for both sites !
Do you think here that the questioners have not read various pages in advance?
Example code is always helpful for other readers of this thread.
References to the f.. documentary usually lead to nothing except for further questions.

Is it so difficult to respond to a specific question with a specific example?
Nobody gets the pistol placed on the chest to answer. But if you want to answer and help, please specifically and no links to the f.. documentary, please.

And now I'm the evil again ?