fix: show tx metadata on SDK-planned home rows, including late-arriving metadata

[bfoss765]

Problem

On post-cutover devices, transaction memos never appear on home-screen rows (the details dialog shows them fine). Field-verified on a restored device: platform metadata synced into the local DB (merge logs show the inserts), while the render-layer proof log in TransactionRowView — added specifically to prove stored-but-not-displayed — fired zero times across entire sessions.

Root cause

Two gaps, and a restore ordering that guarantees hitting them:

1. CutoverUiDataService (the post-cutover row planner) created display rows without joining WalletTransactionMetadataProvider metadata — it only preserved a pre-existing row's memo.
2. TxDisplayCacheService's metadata-change rebuild resolves changed txids to dashj TransactionWrappers; rows for txs the held dashj wallet doesn't have (inserted as SDK fallback metadata rows on restore) can never be decorated by it.

On a restore, rows are built during the L1 scan and metadata syncs later — so nothing ever decorates them.

Fix

1. Build-time join: planL1DisplaySync joins memo/service/customIconId onto rows it inserts (same fields the dashj-era renderEntry joins; metadata never drives value/direction). Fail-soft chunked DAO read (new one-shot TransactionMetadataDao.loadPresentableMetadata).
2. Late-arrival decoration: the metadata-change observer now handles the wrapperless remainder via a new pure planner (planMetadataRowDecorations): decoration only — comment (memo is source of truth; removal clears), service (never un-classified), customIconId — idempotent, keyed by txid off the display-cache row. Because the observer's first emission each launch diffs against an empty map, already-broken devices heal on first launch after upgrade; no migration.

Gift-card/service carve-outs and mixing-group memo preservation untouched; everything stays in the two seam services + one app DAO.

Tests

7 new tests staged red-then-green (build-time join, late decoration without a wrapper, never-unclassify, removal-clears, idempotence). Full wallet suite: 1861 tests, 0 failures.

Reviewer note: a row born service-classified from metadata falls under the planner's existing service-row carve-out afterward — parity with dashj-authored service rows, but worth an eyeball.

🤖 Generated with Claude Code

Summary by CodeRabbit

• New Features

  • Transaction metadata now appears on newly created and previously cached transaction rows.
  • Memos, service labels, and custom icons are synchronized while preserving existing transaction presentation.
  • Metadata updates are applied even when transaction details are unavailable.

• Bug Fixes

  • Removed metadata clears only the memo without removing existing service or icon classification.

• Tests

  • Added coverage for late metadata updates, missing or settled transactions, and post-cutover display behavior.

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📝 Walkthrough

Walkthrough

The change adds transaction metadata lookup for SDK display-cache inserts and late updates. New and existing rows receive memo, service classification, and custom icon values while preserving SDK-derived transaction fields.

Changes

Transaction metadata display synchronization

Layer / File(s)	Summary
Resolve metadata during SDK row insertion wallet/src/de/schildbach/wallet/database/dao/TransactionMetadataDao.kt, wallet/src/de/schildbach/wallet/service/platform/sdk/CutoverUiDataService.kt, wallet/test/de/schildbach/wallet/service/platform/sdk/CutoverUiDataServiceTest.kt	The DAO loads presentable metadata by transaction ID. CutoverUiDataService resolves metadata in chunks and applies memo, service, and custom icon values to new rows. Lookup failures produce undecorated inserts. Tests cover planner and post-cutover insertion behavior.
Decorate cached rows after metadata changes wallet/src/de/schildbach/wallet/service/TxDisplayCacheService.kt, wallet/test/de/schildbach/wallet/service/MetadataRowDecorationTest.kt	The cache service updates wrapperless rows when metadata changes. The planner preserves transaction fields and classification, clears removed memos, skips missing or settled rows, persists changes, and invalidates paging. Tests cover these cases.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: 🟡 Moderate · up to b9816

Metadata-based service classification can prevent later transaction status updates, causing some confirmed transactions to remain displayed as “Sending” or “Processing.” The PR is not merge-ready until this bounded correctness issue is fixed or explicitly accepted.

Suggested reviewers: hashengineering

Sequence Diagram(s)

sequenceDiagram
  participant SDKTransactionDiscovery
  participant CutoverUiDataService
  participant TransactionMetadataDao
  participant TxDisplayCacheService
  SDKTransactionDiscovery->>CutoverUiDataService: provide new transaction rows
  CutoverUiDataService->>TransactionMetadataDao: load metadata by chunked transaction IDs
  TransactionMetadataDao-->>CutoverUiDataService: return presentable metadata
  CutoverUiDataService->>TxDisplayCacheService: persist decorated display-cache rows
  TxDisplayCacheService->>TxDisplayCacheService: apply late metadata updates

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🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 28.57% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 21 functions across 5 files.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: displaying transaction metadata on SDK-planned home rows, including metadata that arrives later.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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• Commit unit tests in branch fix/cutover-row-metadata-decoration

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[HashEngineering]

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Actionable comments posted: 1

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Inline comments:
In
`@wallet/src/de/schildbach/wallet/service/platform/sdk/CutoverUiDataService.kt`:
- Around line 539-554: Keep SDK-authoritative status transitions active even
when metadata supplies a service value: update the service guards used by
planL1DisplaySync and planL1InstantLockRowUpdate to distinguish rich dashj
service rows from metadata-only SDK classification. Apply this at
wallet/src/main/.../CutoverUiDataService.kt#L539-L554 and
wallet/src/.../TxDisplayCacheService.kt#L1501-L1505, and add a regression test
covering a pending metadata-service row transitioning through an IS-lock or
in-block record.

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Configuration used: defaults

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Run ID: ea2399bf-b8b3-4aed-a4df-031efab949bb

📥 Commits

Reviewing files that changed from the base of the PR and between 76f98d6 and b9816cd.

📒 Files selected for processing (5)

• wallet/src/de/schildbach/wallet/database/dao/TransactionMetadataDao.kt
• wallet/src/de/schildbach/wallet/service/TxDisplayCacheService.kt
• wallet/src/de/schildbach/wallet/service/platform/sdk/CutoverUiDataService.kt
• wallet/test/de/schildbach/wallet/service/MetadataRowDecorationTest.kt
• wallet/test/de/schildbach/wallet/service/platform/sdk/CutoverUiDataServiceTest.kt

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[HashEngineering]

approve