Use attrs instead of properties in Bravia TV integration

[bieniu]

Breaking change

Proposed change

Use _attr if possible.

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[probot-home-assistant]

Hey there @Drafteed, mind taking a look at this pull request as its been labeled with an integration (braviatv) you are listed as a codeowner for? Thanks!
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[Drafteed]

I think we can move this to _refresh_volume in the coordinator and store already calculated volume.

[bieniu]

Done

[bieniu]

I found that attrs can only be used for static data. source, source_list, is_on, etc. stored in the attrs don't update properly.
I also removed variables self.channel_number and self.program_media_type as they are not used.

[Drafteed]

I also removed variables self.channel_number and self.program_media_type as they are not used.

Uh :) I was planning to use them to add support for play_media & media_content_type=channel support (like this). This service is used by Google and Yandex voice assistants.

[bieniu]

I was planning to use them

Ops, I'll revert them 😊

[Drafteed]

Looks good to me! Tested and everything is ok.
P.S. I think we can deprecate YAML configuration.

[bieniu]

I think we can deprecate YAML configuration

I want to remove importing YAML config in next PR.

[frenck]

Thanks, @bieniu 👍