Implement functionality of telegrams @gif-Bot

[fridlmue]

In the official Android- and Desktop-App there is the @gif functionality. Typing that, a subset of GIF-Images is opened. With typing text after @gif, the available GIF's match that keyword. I would love to see that function in Fernschreiber.

[Wunderfitz]

Should be feasible - Telegram FOSS seems to use Tenor: https://tenor.com/gifapi/documentation#quickstart

[jgibbon]

Actually it's the bot (with special username gif, also there's at least vid, pic, bing, wiki, imdb, bold, youtube, music, foursquare, sticker – taken from the link below) that handles the tenor integration. So, we could either "fake" this bot with a custom tenor integration and own API Keys or implement support for inline bot queries. https://core.telegram.org/bots/inline

Assuming we go the inline route, there'd actually be a whole lot to do. I don't think I grasped the process completely by quickly reading over the docs, but here's my initial take on it:

• We'd need a (user) search function to (also) return public bots.
• That search has to be integrated with @-mentions in the message input area.
• If the username of a bot with inline-mode is mentioned, firstly, the bot's input placeholder has to be shown (in this case mostly to not violate Tenor's attribution guideline, but also to help tell users what they are doing).
• Then, it has to be searched: getInlineQueryResults.
• The answer then has to be integrated into the UI. There are a lot of result types of which at least a few should be supported: InlineQueryResult. (Not to be confused with InputInlineQueryResult, which is used on the bot side.)
• (Edit: Almost forgot to include this) Obviously, after selecting something, the client has to sendInlineQueryResultMessage

cheers

[Wunderfitz]

Thanks for researching the details, @jgibbon. That's actually quite a lot, but it may be worth the effort... Let's see, other things come a little earlier.