feat(push): PR-1a — registration rules, pure - #466
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mostro/push.rs: PushRegistration (registered_at on the client clock, token hash, issuing node, unwanted_since as the grace clock, backoff state), wanted_pubkeys (live rows, live disputes, open claims; never every key ever derived), plan (register when never accepted, another token, older than 12 h, or a clock rollback; retry after backoff; skip a refused node; grace then unregister; forget what was never accepted), backoff, notify_allowed, token_hash. Settings keys for the state. No I/O and no caller yet: PR-1b wires it. docs/PUSH_NOTIFICATIONS.md Phase 1, T1.1.
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WalkthroughThe change adds push-notification settings and exposes a new Rust module. The module defines persisted registration state, derives wanted trade keys, plans registration actions, applies refusal and backoff rules, and tests the decision paths. ChangesPush notification rules
Priority: ⬇️ Low Estimated code review effort: 4 (Complex) | ~45 minutes Change: Feature Merge Risk: 🔵 Low · up to Before this rule is integrated, a trade whose issuing node changes could remain registered with its former node until the refresh interval. Update the planner and add the focused test to avoid carrying this incorrect behavior into integration. 🚥 Pre-merge checks | ✅ 5✅ Passed checks (5 passed)
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Inline comments:
In `@rust/src/mostro/push.rs`:
- Around line 252-256: Update the due-registration predicate in the planner to
also trigger when the existing registration’s node differs from the wanted node.
Add a targeted planner test covering an accepted registration under NODE_A with
the same wanted key now mapped to NODE_B, and verify re-registration is
scheduled.
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rust/src/db/mod.rsrust/src/mostro/mod.rsrust/src/mostro/push.rs
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A key wanted under another node than it was filed under is re-registered at once: a legacy maker row resolves to the active node, and a switch changes it.
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Summary
Phase 1, task T1.1 of
docs/PUSH_NOTIFICATIONS.md(§7.1, §8.1). Pure Rust, no I/O, no caller yet: PR-1b wires it to the trade rows, the settings store and the push server.The push server holds one token per trade pubkey, forgets it 48 h after the last registration and on every restart, silently. So which keys to register, when to re-send each one and when to let one go is a set of rules, and they live in one module so the startup, resume, timer and event-driven callers all run the same
plan.PushRegistration: what the server was told, persisted per pubkey.registered_atis the client's clock at the200(the response carries no server time).token_hashtells a stale token apart without storing the credential.mostro_pubkeyis the issuing node it was filed under.unwanted_sinceis the grace clock, sinceTradeInfo.completed_atis never written.attemptsandnext_attempt_atcarry the backoff.wanted_pubkeys: the trade key of every row that is not hard-terminal, the key of every trade with a live dispute whatever its status, and the key each open payout claim was addressed to (falling back to the order's key for a claim stored before the index was recorded). Never every key ever derived. An emptycreator_pubkeyreads as the active node; everything is lowercased because the server matchesptags byte-exact.plan: register when never accepted, accepted with another token, older than 12 h, or when the clock reads earlier thanregistered_at(a rollback). A failed attempt retries only once its backoff has passed. A node under an active403is skipped. A key that left the wanted set starts its grace, is kept for 24 h, then unregistered; a key that comes back has the clock cleared. A record the server never accepted is forgotten without a request. State changes are actions too, so the caller applies and persists everything in one place.backoff_secs(1 min → 5 → 30 → 2 h, capped),notify_allowed(10 s per peer),token_hash,refusal_active(24 h).db/mod.rs:push_enabled,push_token,push_platform,push_registrations,push_node_refused:<node>.Test plan
429withRetry-After, refused node and its expiry, acceptance resets; the grace start, hold, expiry, reset, legacy record and never-accepted forget; notify debounce; token hash; JSON round trip.cargo test,cargo clippy --all-targets,cargo check --target wasm32-unknown-unknownandflutter analyzepassed in the pre-commit hook.rustfmt --checkclean on the new file.Manual testing
cd rust && cargo test --lib mostro::push. Expect 26 passed.rust/src/mostro/push.rsand readplannext to §7.1 ofdocs/PUSH_NOTIFICATIONS.md. Every numbered rule there has a matching branch and a matching test name.REFRESH_SECSto1and run the tests again. Expecta_fresh_registration_with_the_same_token_is_left_aloneto fail, which shows the refresh rule is what that test holds down. Revert.grep -rn "mostro::push" rust/srcreturns onlymod.rs): the app's behavior is unchanged by this PR.Summary by CodeRabbit