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4 Commits
Author SHA1 Message Date
Sam 55dab9c68a FIX: stabilize diff algorithm for streaming (#1358) 
Previous to this fix we would diff the entire body of text, this
could lead to situations where a diff presented to a user was
wildly off matching areas in the text that should not have been
tested.

New algorithm only checks a portion of the string, this ensures
that during streaming there is no chance for wild mistakes
 2025-05-22 16:31:21 +10:00
Keegan GeorgeandSam Saffron c29183fc2d FEATURE: Add diff streaming animation (#1355) 
Previously we attempted to add a diff streaming animation to the AI composer helper: https://github.com/discourse/discourse-ai/pull/1332, but it resulted in issues despite attempted fixes (https://github.com/discourse/discourse-ai/pull/1338) so we temporarily suppressed the diff animation (https://github.com/discourse/discourse-ai/pull/1341).

This update makes a second attempt at implementing the diff streaming animation. Instead of creating a custom diff algorithm, we make use of a third-party library [`jsDiff`](https://github.com/kpdecker/jsdiff) (which we added to core here: https://github.com/discourse/discourse/pull/32833). While streaming, the diff animation often struggles with markdown links and images, so we make use of `markdown-it` parser to detect those cases and prevent breaking the animation.

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Co-authored-by: Sam Saffron <[email protected]>
 2025-05-22 08:10:50 +10:00
Keegan George dfea784fc4 DEV: Improve diff streaming accuracy with safety checker (#1338) 
This update adds a safety checker which scans the streamed updates. It ensures that incomplete segments of text are not sent yet over message bus as this will cause breakage with the diff streamer. It also updates the diff streamer to handle a thinking state for when we are waiting for message bus updates.
 2025-05-15 11:38:46 -07:00
Keegan George acd1986a5c FEATURE: Improved diff streaming for AI composer helper (#1332) 
This update improves the animation for streaming a diff of changes when AI helper proofread is triggered. It shows the original text with diff changes live instead of after the fact.
 2025-05-12 15:57:59 -07:00