[Feature Request] Automatic save uploading when changes are detected

[AeroRush]

Hello, the app is a great finding, the only thing I would want to be improved is that having timed intervals seems to be quite confusing if you switch quickly between devices. Could some kind of automatic upload when changes are detected on the savefile be implemented. This could be a toggle where you choose if the saves upload every minutes or when a change is detected. Thanks in advance

[emu-sync]

Hey, so when I was first creating EmuSync, I had functionality that would watch the files from the specified directory and upload them whenever they were changed.

The problem I found with this was that many games constantly write to their save files, and sometimes to more than one file. If we were to upload the new files every time one of them changed, we'd be uploading them far too often.
The solution to this was batching the updates, so whenever a file changed for a game, EmuSync kept track that the games that needed uploading, then would process all the uploads every minute or so.
On top of this, some games tend to keep a lock on their files, so whilst the game is open, the upload would fail because EmuSync isn't allowed access to copy the files. If this were to be an option instead of AutoSync, there would be situations where a game has failed to upload because it was open, someone then closes the game a few moments later, and the game files don't get uploaded.

With all that in mind, it was essentially doing the same thing as the AutoSync functionality (which also handles the downloads as well as uploads), but AutoSync is more fault tolerant and consistent due to the intervals it checks in.
AutoSync is also the only thing that will check for the latest files and download them too, so even if it was uploading whenever files change, I think you'll still have an issue with the latest files not being on your other devices until AutoSync kicks in on them/you manually trigger the sync.

What do you have your AutoSync interval set to? You can change it per device, to a minumum of 1 minute. If you haven't already, setting it to this may help. Otherwise, you can always manually sync whenever you know you're about to switch devices.