refactor(item): typed refusals across the tier contract by Mathih13 · Pull Request #422 · LyraCoreProject/LyraCore

Mathih13 · 2026-09-03T21:06:04Z

Item actions treated every failed Durable Request as an inventory refusal, including timeouts with unknown results. The Module and Coordinator now use a shared ItemRefusal contract. Known refusals produce the existing inventory failure packet, while transport failures and unknown results end the World Session.

Equip, unequip, move and use preserve taxi flight as NotRightNow. Operator failures and missing Actors remain fatal. The Gateway no longer searches human error text to decide the client outcome.

Verified with shared tag and client-code coverage, Module item Gate tests, Gateway item outcome and timeout tests, and an isolated cargo check -p lyracore-gateway --tests. The review fix is rebased onto main at a447495; CI runs the full checks.

Review fixes by GPT-5.6 Sol through Codex, reviewed by GPT-6 through Codex.

Summary by CodeRabbit

New Features
- Added clearer, categorized feedback for item actions, including equip, unequip, move, use, split, and banking operations.
- Inventory failures now provide specific reasons such as missing items, invalid slots, full inventory, eligibility restrictions, unavailable banks, and timing limitations.
- Client responses now map item-action refusals to the appropriate inventory failure notifications.
Bug Fixes
- Improved handling of blocked item actions and reducer timeouts while preserving fatal errors for unexpected failures.

Mathih13 · 2026-09-04T20:36:28Z

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Reviewing files that changed from the base of the PR and between a447495 and 6d6f9c4.

📒 Files selected for processing (12)

crates/lyracore-shared/src/item.rs
gateway/src/codec/item.rs
gateway/src/stdb/reducers.rs
gateway/src/world/handlers/item.rs
gateway/src/world/handlers/mod.rs
gateway/src/world/mod.rs
gateway/src/world/tests.rs
module/src/debug/mod.rs
module/src/gw.rs
module/src/items/inventory.rs
module/src/items/mod.rs
module/src/items/ops.rs

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📝 Walkthrough

Walkthrough

The change introduces typed item-operation refusals, canonical refusal tags, reducer result handling, and client inventory failure mapping. Item operations preserve refusal categories while gateway handlers distinguish gameplay refusals from transport, timeout, and other fatal errors.

Changes

Typed item refusal flow

Layer / File(s)	Summary
Item refusal contract `crates/lyracore-shared/src/item.rs`	Defines twelve `ItemRefusal` variants, canonical tags, exact parsing, and round-trip tests.
Item operation refusal production `module/src/items/*`, `module/src/gw.rs`, `module/src/debug/mod.rs`	Classifies inventory and item-use failures as typed refusals. Gateway and debug operations convert refusals to reducer-facing strings.
Gateway reducer result conversion `gateway/src/stdb/reducers.rs`, `gateway/src/world/tests.rs`	Returns `ItemActionResult`, converts recognized refusal tags, and preserves timeout, transport, unrelated, and text-only errors as failures.
Client refusal response handling `gateway/src/codec/item.rs`, `gateway/src/world/handlers/*`, `gateway/src/world/mod.rs`	Maps typed refusals to inventory failure packets. Dispatchers, stores, exports, and tests use the typed result contract.

Estimated code review effort: 4 (Complex) | ~60 minutes

Merge Risk: ⚪ Minimal · up to 6d6f9

The item flow handles pre-login requests without ending the World Session, as covered by the current contract and test.

Sequence Diagram(s)

sequenceDiagram
  participant ItemOperations
  participant GatewayReducers
  participant ItemActionStore
  participant build_inventory_refusal
  ItemOperations->>GatewayReducers: return canonical refusal tag
  GatewayReducers->>ItemActionStore: return ItemActionResult
  ItemActionStore->>build_inventory_refusal: encode ItemRefusal
  build_inventory_refusal-->>ItemActionStore: SMSG_INVENTORY_CHANGE_FAILURE

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 70.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 70 functions across 12 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 and concisely describes the main change: introducing typed item refusals across the Module and Coordinator tier contract.
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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Inline comments:
In `@module/src/gw.rs`:
- Line 950: Update the shared item-action error translation used by
dispatch_item_action so actor errors such as PLAYER_IN_TAXI_FLIGHT become
per-action refusals instead of unknown results that terminate the session.
Preserve existing ItemRefusal handling and apply the behavior consistently for
unequip, equip, and move paths.

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📥 Commits

Reviewing files that changed from the base of the PR and between ced39f5 and a419217.

📒 Files selected for processing (12)

crates/lyracore-shared/src/item.rs
gateway/src/codec/item.rs
gateway/src/stdb/reducers.rs
gateway/src/world/handlers/item.rs
gateway/src/world/handlers/mod.rs
gateway/src/world/mod.rs
gateway/src/world/tests.rs
module/src/debug/mod.rs
module/src/gw.rs
module/src/items/inventory.rs
module/src/items/mod.rs
module/src/items/ops.rs

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The Module refused an item Durable Request with a free-form `Result<(), String>` and the Gateway called any error without "reducer transport disconnected" a gameplay refusal. A 10 second reducer timeout therefore reached the client as `SMSG_INVENTORY_CHANGE_FAILURE` while the Module could still commit the move. One shared `ItemRefusal` enum now defines the contract. Every equip, unequip, move, split and use core returns it; the reducer edge sends only the tag and keeps the human detail in the Module log. The Gateway parses a tag only from a reducer the Module rejected, so a timeout or transport failure stays an error with an unknown outcome and ends the session. Each Refusal reaches the client as its own vanilla inventory result instead of one generic popup. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

Mathih13 · 2026-09-04T21:34:17Z

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Mathih13 · 2026-09-04T21:38:16Z

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coderabbitai · 2026-09-04T21:38:23Z

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Comment thread module/src/gw.rs

Mathih13 force-pushed the feat/item-typed-refusals branch from a419217 to 9ba46b4 Compare September 4, 2026 21:17

Mathih13 and others added 2 commits September 4, 2026 23:25

fix(item): classify taxi flight as a refusal

6d6f9c4

Mathih13 force-pushed the feat/item-typed-refusals branch from 9ba46b4 to 6d6f9c4 Compare September 4, 2026 21:28

Mathih13 merged commit a20ddf1 into main Sep 4, 2026
6 checks passed

Mathih13 deleted the feat/item-typed-refusals branch October 11, 2026 18:20

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refactor(item): typed refusals across the tier contract - #422

refactor(item): typed refusals across the tier contract#422
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feat/item-typed-refusals

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