fix(explore-dash): keep paid gift-card orders and repair the post-purchase flow - #1046
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fix(explore-dash): keep paid gift-card orders and repair the post-purchase flow#1046romchornyi wants to merge 7 commits into
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A customer paid for two gift cards, was told "Purchase Failed", and received the cards by email while the app kept no trace of them. Four defects on that path, all reproduced on testnet: The SDK reports "unknown" when its acceptance detector sees no relay-back inside 30 s, and `requireAccepted` turned that into a throw indistinguishable from a rejection. The order dies with it: `purchaseGiftCardAndPay` persists nothing until `payWithDashUrl` returns, so no `gift_cards` row, no tx metadata, no icon — while CTX, which acknowledged the signed bytes one step earlier, broadcasts them itself and fulfils the order. Carry the tx hash out through `BIP70Error.broadcastOutcomeUnknown` and `DashSpendError.paymentStatusUnknown`, record the purchase on both the confirmed and unconfirmed paths, and route the screen to the card details instead of an error dialog: the details poller is what turns a pending order into a card. `HomeViewController.showGiftCardDetails` set `HomeViewModel.giftCardTxId`, which nothing observed — the sheet was bound to a local `@State` copy. Every post-purchase entry point funnelled into that dead setter, leaving the buyer on the home screen with the transaction row as the only way in. Bind the sheet to the view model, the single source of truth for both entry points. Card polling hammered CTX every 1.5 s for 40 attempts and then rendered a dead "Failed to load barcode"; the purchase-selection sheet had no failure state at all and kept promising a card nothing was fetching. Back off 1.5 s → 30 s, give up after eight consecutive failures, and offer a retry in both sheets. The "still working on it" hint counted failures rather than polls, so it never appeared while CTX healthily answered "not fulfilled yet". Contact Support fell back to a share sheet carrying log files only when no Apple Mail account exists — the common case for a Gmail user — so reports arrived with an empty "To". Lead with a mail item carrying the support address and subject. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
`refreshEvonodeEpochBlocks` reads `isPreviewMode`, which only exists under `#if DEBUG`, so the dashpay scheme fails to build in Release with "cannot find 'isPreviewMode' in scope". `reloadShortcuts` already wraps the same guard; match it. Release behaviour is unchanged — SwiftUI previews never run there. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
A gift-card purchase held the buyer on a spinner for ~38 s: the flow awaited the SDK's network-acceptance verdict, capped at 30 s, after CTX had already acknowledged the signed transaction and started fulfilling the order. The confirmation email routinely arrived before the app moved on. Give the BIP70 send path an `awaitAcceptance` flag and clear it for gift cards. The Payment/ACK exchange still happens before anything is broadcast, so the merchant's acknowledgement — the thing that actually commits the spend — is unchanged; only the verdict now resolves in the background. Trade-off: a rejected broadcast is no longer surfaced at purchase time. It lands in the log while the buyer is already on the card screen, and the card row (recorded regardless of the verdict) leaves the order recoverable. Worth it — a rejection is rare, whereas the wait was on every single purchase. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
… changes Both networks share a single `explore.db`, and the marker recording which network's data sits in it is only consulted at launch and on the 24 h timer. Switching chains mid-session therefore left the other network's merchants on screen until the next launch — a testnet wallet browsing the mainnet catalogue, which is what made a DashSpend purchase fail against merchants staging CTX has never heard of. Resync on `DWCurrentNetworkDidChange`, and resolve the Storage reference at use time instead of caching it in `init`. The cached reference was the worse half: a mid-session sync downloaded the *previous* network's archive and then stamped the marker with the *current* network, so the mismatch check agreed with itself from then on and never fired again. A sync already running is left alone rather than raced over the same file. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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📝 WalkthroughWalkthroughChangesPayment confirmation flow
Gift-card loading and retry
Support log sharing
Network-aware explore synchronization
Runtime build behavior
Estimated code review effort: 4 (Complex) | ~45 minutes Merge Risk: 🟠 High · up to The PR improves gift-card payment recovery, navigation, polling, support contact, and network switching, but the current implementation can still misattribute catalogue data across networks or record a gift-card payment before the broadcast is confirmed. These correctness risks could affect purchases and displayed merchant data, so the PR is not ready to merge until they are addressed. Sequence Diagram(s)sequenceDiagram
participant SendCoinsService
participant BIP70PaymentService
participant WalletSDK
participant DashSpendPayViewModel
SendCoinsService->>BIP70PaymentService: submit with awaitAcceptance false
BIP70PaymentService->>WalletSDK: broadcast in detached task
BIP70PaymentService-->>SendCoinsService: return computed transaction ID
WalletSDK-->>SendCoinsService: report unknown broadcast outcome
SendCoinsService-->>DashSpendPayViewModel: throw paymentStatusUnknown
DashSpendPayViewModel->>DashSpendPayViewModel: record pending purchase
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In `@DashWallet/Sources/Categories/UIViewController`+DashWallet.swift:
- Around line 227-233: Update the activity-sharing implementation to add
activityViewControllerShareRecipients(_:) for the canSendMail() false path,
returning an email INPerson as recipient metadata while preserving the existing
plain-text email item fallback for handlers that do not support recipient
metadata.
In `@DashWallet/Sources/Models/Explore`
Dash/Services/ExploreDatabaseSyncManager.swift:
- Around line 49-57: Update the synchronization flow to capture the current
network and its StorageReference once at the start of each synchronization
attempt, then reuse both for metadata and archive download instead of resolving
storageRef separately. Before accepting or recording the archive, detect a
network change during the attempt and discard or restart that attempt; keep
size, checksum, and timestamp validation tied to the captured network.
- Around line 103-116: Update ExploreDatabaseSyncManager’s syncIfNeeded and
active sync completion flow to serialize all sync attempts, treating both
.fetchingInfo and .syncing as active states. Record a pending request when a
network-change or other sync trigger arrives during an attempt, then run exactly
one fresh sync after that attempt finishes; also register the network observer
before the initial sync starts so startup changes are captured. Ensure
completion evaluates the current network before marking an archive, preventing
previous-network data from being associated with the current network.
In `@DashWallet/Sources/Models/PaymentProtocol/BIP70PaymentService.swift`:
- Around line 320-337: Track whether a successful PaymentACK was received during
the merchant POST flow, then update the awaitAcceptance decision so the detached
broadcast branch runs only when that acknowledgement exists. For requests
without a successful acknowledgement, including those lacking paymentURL, await
wallet.broadcast(prepared) and return only its result; keep the existing
txid-based detached logging behavior for acknowledged payments.
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📒 Files selected for processing (16)
DashWallet/Sources/Categories/UIViewController+DashWallet.swiftDashWallet/Sources/Infrastructure/SwiftDashSDK/SwiftDashSDKWalletSending.swiftDashWallet/Sources/Models/Explore Dash/Services/DashSpend/DashSpendError.swiftDashWallet/Sources/Models/Explore Dash/Services/ExploreDatabaseSyncManager.swiftDashWallet/Sources/Models/PaymentProtocol/BIP70Error.swiftDashWallet/Sources/Models/PaymentProtocol/BIP70PaymentService.swiftDashWallet/Sources/Models/Transactions/SendCoinsService.swiftDashWallet/Sources/UI/Explore Dash/Views/DashSpend/DashSpendPayScreen.swiftDashWallet/Sources/UI/Explore Dash/Views/DashSpend/DashSpendPayViewModel.swiftDashWallet/Sources/UI/Explore Dash/Views/DashSpend/GiftCardDetails/Components/GiftCardDetailsInfoCard.swiftDashWallet/Sources/UI/Explore Dash/Views/DashSpend/GiftCardDetails/Components/GiftCardPurchaseSelectionSheet.swiftDashWallet/Sources/UI/Explore Dash/Views/DashSpend/GiftCardDetails/GiftCardDetailsView.swiftDashWallet/Sources/UI/Explore Dash/Views/DashSpend/GiftCardDetails/GiftCardDetailsViewModel.swiftDashWallet/Sources/UI/Home/Views/HomeView.swiftDashWallet/Sources/UI/Home/Views/HomeViewModel.swiftDashWallet/en.lproj/Localizable.strings
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…he payment The same loss as the unconfirmed-broadcast case, one step earlier. BIP70 posts the signed transaction to CTX and reads its acknowledgement before anything is broadcast; losing the network between the two throws `ackRejected`, which carries no txid, so the purchase is never recorded. CTX — already holding the bytes — fulfils the order and broadcasts them itself, and the payment surfaces in the app as a plain "Sent" transaction with no merchant, no icon and no card, while the card arrives by email. The caveat was documented in `confirmAndSend`; this makes it survivable. Reproduced by hand: buy a card, switch on Airplane Mode while the payment is in flight, switch it off. Before this change the history row had lost every trace of being a gift-card purchase. `BIP70Error.paymentNotAcknowledged` now carries the app-computed tx hash and `DashSpendError.paymentNotAcknowledged` passes it to the view model, which records the purchase before rethrowing. Deliberately still an error rather than the silent hand-off used for an unconfirmed broadcast: there we know the bytes left the device, here we cannot tell whether CTX received them at all. The dialog says so and points at the transaction list rather than promising a card. If CTX never got the payment, the recorded row simply has no transaction behind it and stays invisible. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
**Recipient metadata for share extensions.** `UIActivityItemSource` does have a recipient API — `activityViewControllerShareRecipients(_:)` returning `INPerson` — which the previous change claimed did not exist. Handlers that read it now pre-fill the address properly; the `mailto:` URL and the plain-text item stay as fallbacks for those that do not. **One network per sync attempt.** `storageRef` was resolved separately for the metadata request and the download, so a chain switch between the two paired one network's size, checksum and timestamp with the other network's bytes. The network and its reference are now pinned when the attempt starts and carried through both calls, and the version, timestamp and installed-network markers are written under the pinned network rather than whatever is current when the download lands. **Network changes are queued, not dropped.** The guard only rejected `.syncing`, so a second notification during `.fetchingInfo` could start a parallel attempt, while one during `.syncing` was discarded outright — leaving the wrong network's merchants installed until the next launch, the very failure the observer exists to prevent. Requests arriving mid-attempt now set a pending flag that `settle` drains when the attempt finishes, and the observer is registered before the first sync so a switch during startup is queued too. **An unacknowledged payment always waits for the broadcast verdict.** Skipping it is only defensible because the merchant's acknowledgement has already committed the spend. An unsigned request without a `payment_url` never posts a Payment, so nothing has committed anything and the broadcast outcome is the only signal there is. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Resolved `ExploreDatabaseSyncManager.swift` in favour of develop. The network-switch re-sync this branch carried (953005f) had already landed there via 865c9a7 — the backport of #856 — which does the same thing more carefully: it re-checks the snapshotted network at every async hop, not only at the start of an attempt. Keeping both would duplicate the fix. One piece of this branch's version is not in develop's: a guard that keeps a network change arriving mid-attempt from starting a parallel sync (it queues and re-runs afterwards). Left out here to keep this PR to its subject; worth a small follow-up. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Issue being fixed or feature implemented
Support ticket 32000: a customer bought two CTX gift cards. The first attempt showed "Purchase Failed" and left nothing in the app — the card arrived by email hours later. The second produced a card but dropped her back on the transaction screen instead of the card. The in-app support link opened a Gmail draft with an empty "To". A later PiggyCards purchase showed the same error screen several times before it went through.
All four are separate defects on the same path, all reproduced on testnet.
What was done?
A paid order is no longer discarded on an inconclusive broadcast. The SDK reports
unknownwhen its acceptance detector sees no relay-back within 30 s, andrequireAcceptedturned that into a throw indistinguishable from a rejection. Nothing is persisted untilpayWithDashUrlreturns, so the order died with the throw: nogift_cardsrow, no tx metadata, no icon — while CTX, which acknowledged the signed bytes one step earlier in the BIP70 exchange, broadcast them itself and fulfilled the order. The tx hash now travels out with the error (BIP70Error.broadcastOutcomeUnknown→DashSpendError.paymentStatusUnknown), the purchase is recorded on both the confirmed and unconfirmed paths, and the screen routes to the card details instead of an error dialog — the details poller is what turns a pending order into a card.Root cause sits below the app: dash-spv's acceptance detector only counts signals that arrive after the broadcast is registered, so an InstantSend lock triggered by the merchant's own broadcast is invisible to it. Fixed separately in rust-dashcore#982; this change is what keeps the order safe regardless.
The same loss one step earlier is closed too. BIP70 posts the signed transaction to CTX and reads its acknowledgement before anything is broadcast. Losing the network between the two throws
ackRejected, which carries no txid — so the purchase went unrecorded while CTX, already holding the bytes, fulfilled the order and broadcast them itself. The payment then surfaced as a plain "Sent" transaction with no merchant, no icon and no card.paymentNotAcknowledgednow carries the tx hash and the order is recorded before the error is rethrown. This one stays an error rather than the silent hand-off used for an unconfirmed broadcast: there we know the bytes left the device, here we cannot tell whether CTX received them at all, so the dialog says so and points at the transaction list instead of promising a card.The gift-card sheet opens after a purchase.
HomeViewController.showGiftCardDetailssetHomeViewModel.giftCardTxId, which nothing observed — the sheet was bound to a local@Statecopy. Every post-purchase entry point funnelled into that dead setter, leaving the buyer on the home screen with the transaction row as the only way in. The sheet is now bound to the view model, the single source of truth for both entry points.Card polling backs off and offers a retry. It hammered CTX every 1.5 s for 40 attempts and then rendered a dead "Failed to load barcode"; the purchase-selection sheet had no failure state at all and kept promising a card nothing was fetching. Now 1.5 s → 30 s with a give-up after eight consecutive failures, and a retry in both sheets. The "still working on it" hint counted failures rather than polls, so it never appeared while CTX healthily answered "not fulfilled yet".
Contact Support carries its recipient. Without an Apple Mail account — the common case for a Gmail user — the flow falls back to a share sheet that carried log files only, hence the empty "To". It now leads with a mail item carrying the support address and subject. iOS has no recipient API for a share sheet, so third-party handlers get the address in the body rather than the field.
The buyer no longer waits out the acceptance verdict. The purchase held a spinner for ~38 s waiting for a verdict capped at 30 s, after CTX had already acknowledged the transaction and started fulfilling the order — the confirmation email routinely beat the app. The BIP70 send path gained an
awaitAcceptanceflag, cleared for gift cards. Measured 38 s → 7 s. Trade-off: a rejected broadcast is no longer surfaced at purchase time; it lands in the log while the buyer is on the card screen, and the recorded card row keeps the order recoverable.Two unrelated fixes ride along because they blocked this work:
refreshEvonodeEpochBlocks(feat(wallet): Nodes shortcut with the blocks your evonodes proposed this epoch #1036) readsisPreviewMode, which exists only under#if DEBUG, so the dashpay scheme did not compile in Release.explore.db, and the marker recording whose data is in it was only consulted at launch or on the 24 h timer, so a mid-session chain switch left the other network's merchants on screen. Worse, the Storage reference was cached ininit, so a mid-session sync downloaded the previous network's archive and stamped it with the current network — after which the mismatch check agreed with itself forever.How Has This Been Tested?
Testnet, iPhone 17 simulator, staging CTX, real gift-card purchases from Brinker:
SPV broadcast saw no acceptance signal within 30sat 17:27:23, order recorded against the txid, redeem URL fetched one second later. Before this change that purchase would have been lost.mailto:support@dash.orgwith the subject filled.Clean
dashpayDebug build. The unit-test target is still broken repo-wide, so no tests were added here.Breaking Changes
None.
Checklist:
For repository code-owners and collaborators only
Summary by CodeRabbit
New Features
Bug Fixes