[Enhancement] Improving background tasks

[g123k]

[Enhancement] Improving background tasks

[monsieurtanuki]

Hi @g123k!

The way background tasks work:

• immediately setting the local product with the new changes
• immediately giving back to the user the control of the app
• putting a task in a queue, which is re-run on specific common events (e.g. opening a product page)

I don't know the "weird problems" you're talking about: could you please be more specific?

• If it's that the server isn't updated at the same time as the app, that's not a bug, that's a feature: we can update products offline or when the server is down.
• If it's that local data seems to change, it happens if the server doesn't change the data itself, cf. #5394: the user changes the local data, the user sees the changed data locally, the server is called but doesn't change the data, the app downloads the unchanged data, the local data reverts to the value before the user change.

Would it be worth to let users know a bit about background tasks, with a sort of access to the current queue? Definitely. I'm pretty sure most of them have already downloaded a file and seen the download progress.

Some solutions to have more active processes:

• splitting into several queues - e.g. one queue for the "simple" background tasks and one queue dedicated to heavy stuff like photo upload
• calling BackgrounsTaskManager.run() in more cases