[bisq-network/bisq] Add UI OfferBook list add/remove checks (#5659)
Stan
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Mon Aug 16 18:31:41 CEST 2021
@ghubstan commented on this pull request.
> offer.getId(),
- hashOfPayload.getHex());
+ hashOfPayload == null ? "null" : hashOfPayload.getHex());
+ }
+
+ // The OfferBookListItem with a null or matching payload-hash was not found.
+ // However, when the API's CLI is used to edit and deactivate an offer
+ // in the same command, the edited offer is not re-published (and cannot be
+ // found in local storage). In this case, we need to remove the deactivated
+ // offer from the list if the local store does not contain an offer with a
+ // matching offerId.
+ if (!isStoredLocally(offer)) {
+ Optional<OfferBookListItem> viewItem = getOfferBookListItem(offer);
+ viewItem.ifPresent((item) -> {
+ offerBookListItems.remove(item);
>> Why is this needed?
Short explanation is a stale offer with no matching offer (with id) in local protected storage cannot be taken and should be removed from view.
>> Isn't this just to present it nicely to the UI and that's not a problem when running the cli?
The `OfferBookListItem` is a JFX observable used for display in the OfferBook views. This code block supports the CLI being able to atomically edit and deactivate an offer in the same `editoffer` command, something the UI never does. When you edit an offer with the UI, you deactivate the offer in the 1st mouse click (pencil button), then re-activate it with the confirm-edit or cancel button clicks -- two separate actions that ensure the temporarily deactivated offer is removed from peers, and the edited (or not) offer is re-published to peers (re-activated).
When the CLI edits _and_ deactivates an offer in the same `editoffer` command, the edited&disabled offer _will not be re-published_ by the API. On another UI/Peer, the old stale OfferBookListItem would remain (without this code block) in the UI's observable item list because the peer receives on `onRemoved` msg containing the payload-hash of the newly edited offer the peer never received; there is no matching payload-hash, and `OfferBook.onRemoved(offer, payloadHash)` does not know which item to remove.
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