Add the spend & backup surface to LiteWalletController, with the real SDXL
backend contracts verified against the Rust source:
- send / shield: ASYNC (detached broadcast thread + takeBroadcastResult() slot,
mirroring the sync thread's shared-lifetime pattern, since sapling proving can
take seconds), plus synchronous *Blocking cores for tests. send uses the
JSON-array form ([{address,amount,memo}]) because litelib_execute passes the
whole args string as ONE argument (no whitespace split) — the space-separated
CLI form would never parse. send/shield report failure via {"error":..} in the
body (NOT an "Error:" prefix), so the result is derived from the parsed JSON.
- importKey: auto-detects transparent WIF (U/5/K/L -> timport) vs shielded key
(-> import); takes the key by value and securely wipes it before returning.
- exportPrivateKeys / exportSeed: synchronous local reads returning SECRET
material (flagged: no logging; caller wipes after the user saves the backup).
- broadcast thread is detached in the dtor (captures shared bridge + flag + slot,
never `this`), so it is safe to outlive the controller.
Tests: testLiteWalletControllerM4 drives send (success / no-recipients /
{"error":..} / async-slot delivery / pre-open rejection), shield, export, seed,
and import (shielded + WIF + pre-open). Fake backend returns the real command
shapes + a g_liteFakeSendFails error toggle.
GUI wiring (send_tab button, backup/import UI) is deferred like the M3 UI hop
(GUI-unverifiable here). Plan doc updated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Re-audited this session's lite-wallet changes (originally written at medium
effort) and fixed the genuine issues found:
- walletReady (open path): litelib_initialize_existing returns the bare string
"OK", which is NOT valid JSON, so the previous `json::accept(value)` check
marked a *successful* open as not-ready. Key off a non-empty success response
instead (the bridge already maps "Error:"/null to failure). Drops the now
unused nlohmann include.
- sync progress: while the detached sync thread is still running, syncDone_ is
authoritative — don't surface the backend's transient idle syncstatus
({"syncing":"false"} -> parser progress=1.0/complete=true) as a misleading
100%/done. Force complete=false and zero the bogus 1.0 in the progress model.
- per-address balance: also exclude `pending` outputs (notes/utxos from an
unconfirmed received tx) so per-address figures match confirmed/available.
- secret wiping: the settings page left the page-local request copies
(input.request.*Request.{passphrase,seedPhrase}) unwiped, and the
validation-only fallback path wiped nothing. Replace the single-path memzero
with an RAII scrubber that wipes both the UI char buffers and the request
string copies on every return path.
- concurrency: document that concurrent bridge->execute() is intentionally
unguarded — litelib serializes wallet access internally via
Arc<RwLock<LightWallet>>, so a C++ mutex is unnecessary and would defeat the
sync/syncstatus concurrency the design relies on. syncLaunched_ -> atomic.
Tests: fake backend now returns the real init shapes (seed object for
create/restore, bare "OK" for open) and a new open-path case guards the
walletReady regression. Removed an unreliable alloc==freed leak assert from the
thread-bearing controller test (kept in the thread-free bridge test). Also fixed
a stray CMake indent and removed ~220MB of untracked build/debug scratch.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- LiteWalletController::newAddress(shielded) runs the backend "new" command ("zs"/"R" ->
do_new_address), parses the ["addr"] response, and returns the new address; the next
refresh lists it. Fast (local derivation), safe on the UI thread.
- fake_lite_backend returns ["zs1fakenew"]/["R1fakenew"] for "new" by args.
- testLiteWalletControllerNewAddress covers shielded/transparent + no-wallet error.
Also confirmed (no code needed): the sync-progress indicator already works for lite —
balance_tab reads state.sync.* which M2b-3 populates. Per-address balances landed in M2.
Remaining M3 is pure UI wiring (receive_tab button -> newAddress, loading/empty states),
which isn't verifiable without a GUI session.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
LiteWalletGateway::refresh() aborted the entire refresh on the first command whose bridge
call or parse failed — which turned a single real-backend shape mismatch (e.g. syncstatus)
into a total, empty-everything refresh. Since the balance/addresses/list real shapes are
still unverified and we've already hit shape drift twice, make refresh resilient:
- Run every planned command; assembleLiteWalletRefreshBundle already skips failed results.
- result.ok = any usable data came back (bundle.complete still reflects all-succeeded).
- One command's failure now degrades gracefully — the other sections still populate.
testLiteWalletGatewayRefreshSkipsFailedCommand (fake balance returns invalid JSON) asserts
the refresh still succeeds with addresses/transactions/info populated and balance skipped.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The backend `sync` command is a blocking, uninterruptible full chain scan (do_sync(true);
does not honor the shutdown flag), and balance/list block until synced. Previously
startSync() ran on the main thread (would freeze wallet creation) and the worker could
block, making the destructor join() hang at shutdown.
Redesign:
- bridge is now std::shared_ptr<LiteClientBridge>, shared with a detached sync thread so
detaching is safe and litelib_shutdown isn't called while a running sync still holds the
bridge; the controller's own ref prevents premature shutdown during normal operation.
- startSync() launches the blocking `sync` on a detached thread (non-blocking; never joined).
- refreshModel() gates on syncDone_: while syncing it publishes syncstatus progress only;
once synced it does the full balance/addresses/list refresh (now fast).
- destructor joins only the fast poll worker and detaches the sync thread -> no hang.
- syncComplete() accessor added.
Tests (deterministic, via a blocking-sync fake; counters made atomic for the detached
thread): testLiteWalletControllerShutdownDoesNotHangDuringSync (destructor returns <1.5s
with sync blocked); refresh/worker tests wait for syncComplete()/a balance-bearing model.
Stable across repeated runs; lite+backend and full-node apps build clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
The real backend returns syncstatus as idle {"syncing":"false"} (string) or in-progress
{"syncing":"true","synced_blocks":N,"total_blocks":M} (commands.rs:83-87), but
parseLiteSyncStatusResponse hard-required the block fields and failed whenever the wallet
wasn't actively syncing — so sync/progress never updated in the real app.
- Read "syncing" as a string; require synced_blocks/total_blocks only when syncing=true;
idle => complete, synced/total 0.
- fake_lite_backend syncstatus now uses the real "syncing":"true" shape.
- testLiteSyncStatusParserRealShapes covers idle, in-progress, and missing-counts-while-syncing.
- Verified against the live backend via lite_smoke --refresh (syncstatus parse_ok=1).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Shared-bridge refactor (litelib is a global singleton; every LiteClientBridge calls
litelib_shutdown() on destruction, so services must not each own one):
- LiteWalletLifecycleService, LiteWalletGateway, LiteSyncService now take a non-owning
LiteClientBridge*; LiteWalletController owns the single bridge and passes &bridge_.
Sync + controller refresh:
- LiteSyncService::startSync executes the real "sync" command (was a stub).
- LiteWalletController: startSync() (auto-fires when a wallet becomes ready) and
refreshWalletState(WalletState&) — polls syncstatus, runs gateway.refresh(), maps the
bundle, applies balances/addresses/transactions/sync into WalletState.
Tests:
- fake_lite_backend.h returns command-shaped JSON (per tests/fixtures/lite/result_parsers.json).
- testLiteWalletControllerRefreshPopulatesState drives the full path against the fake.
- Surfaced + worked around a real integration issue: parseLiteInfoResponse requires
latest_block_height and the gateway aborts the whole refresh on the first command's
parse failure (fragile vs partial backend responses; hardening tracked for M2b-3).
Verified: ctest green; lite+backend, full-node, lite-no-backend apps + lite_smoke build clean.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
