Handle reorgs

[cygnet3]

We should handle block reorgs when managing our owned outputs. Nakamoto has some built-in stuff for tracking scripts across reorgs (https://docs.rs/nakamoto-client/0.4.0/nakamoto_client/handle/trait.Handle.html#method.watch), maybe we could use that. However, we also need to make sure that we reset the 'scan' progress when blocks get reorged.

[aruokhai]

Hey, can i work on this .

[aruokhai]

Hey, can i work on this .

[cygnet3]

Extra help would be very much appreciated!

The description of this issue is very outdated. There's basically 2 things that need to happen I think:

1. We need some way to ask blindbit-oracle if we are currently on the correct chain and if not, how many blocks ago a chain split occurred
2. If a chain split occurred on block height n, we should delete all the data after block height n, reset the scan height to n, and scan to the new chain tip

I think (1) is quite difficult requires some help from the blindbit developer (setavenger), but we could probably already do (2).

So if you want to work on it, maybe you could start with (2)?

[cygnet3]

I also added a similar issue to the Dana wallet repository (a wallet we're working on that consumes sp-client): cygnet3/danawallet#80.

[aruokhai]

Sure, I would get started on working on (2), would also check out Dana Wallet