# Auction Socket Completion Report

**Branch:** `auction-lifecycle-delivery`
**Date:** 2026-07-30
**Classification: READY AFTER MANUAL QA**

Live authenticated Socket staging lifecycle was **not** executed. Static + unit + Mongo concurrency evidence only.

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## 1. Classification

READY AFTER MANUAL QA

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## 2. Socket event inventory

See `tasks/auction-socket-event-inventory.md` and `docs/AUCTION_SOCKET.md`.

| Event | Canonical service | Auth required | Idempotent | Persists before emit | Legacy? | Tested |
|---|---|---|---|---|---|---|
| `auction:enter` | Auction lookup + snapshot | handshake | n/a | n/a (read + join) | seller dual-read notify | unit snapshot |
| `auction:entered` (emit) | snapshot builder | — | — | — | no | unit |
| `auction:bid` | `placeBidAtomic` | handshake client | **required key** | **yes** | no | unit + Mongo |
| `auction:bid-updated` | after new Bid | room | n/a | after commit; **not on replay** | **canonical** | unit wiring |
| `auction.bidAccepted` | alias | room | n/a | after commit; not on replay | legacy alias | unit |
| `auction.priceUpdated` | alias | room | n/a | after commit; not on replay | legacy alias | unit |
| `auction.extended` | when extended | room | n/a | after commit | no | Mongo |
| `auction:ended` | observe only | handshake | n/a | **no mutation** | was obsolete command → now read-only | unit static |
| `auction:finished` / `auction.ended` | observe emit | — | — | only if already finalized | mixed names kept | unit |
| `start-live` / `enter-live` / `add-comment` / `exit-live` | liveHelper | handshake | n/a | live overlay only | **optional overlay** | not required |
| Agora tokens | commented | — | — | — | optional/disabled | documented |
| disconnect | viewer cleanup | — | — | may set live NOT_LIVE only | overlay | reviewed |

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## 3. Files changed

- `listeners/socketManger/socket.js`
- `listeners/socketManger/auctionHelper/index.js`
- `listeners/socketManger/auctionValidation/index.js`
- `listeners/socketManger/liveHelper/index.js` (overlay disclaimer only)
- `src/helpers/auction/idempotencyKey.js` (**new**)
- `src/helpers/auction/atomicBid.js`
- `src/helpers/api/Bid.js`
- `src/utils/validations/api/bid.js`
- `src/locales/{ar,en}/socket.json`
- `src/locales/{ar,en}/auctions.json`
- `test/auctionSocketContract.test.js` (**new**)
- `test/auctionBidConcurrency.integration.test.js`
- `docs/AUCTION_SOCKET.md` (**new**)
- `docs/AUCTION_MANUAL_QA.md`
- `tasks/auction-socket-event-inventory.md`
- Postman artifacts regenerated to match OpenAPI auction paths

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## 4. Idempotency

- Shared `normalizeIdempotencyKey` (max 128; `[A-Za-z0-9_:-]`; rejects dotted/`$`/prototype/control chars).
- Socket **requires** key (no server-generated fallback; not `socket.id`).
- HTTP key remains optional but uses the same sanitizer when present.
- `placeBidAtomic` binds replay to **auction + key + client + amount**.
- Conflict → `IDEMPOTENCY_CONFLICT`.
- Replay → no second Bid / no price change / no extension / no accepted broadcast.

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## 5. Acknowledgement contract

Optional Socket.IO ack callback aligned with HTTP-ish `{ key, message, data|code }`.
Failures also emit `auction:error` with the **same** `code`/`message` (and safe extras). No contradictory formats.

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## 6. Event emission

- Accepted broadcasts only after successful `placeBidAtomic` for a **new** Bid.
- Canonical public event: **`auction:bid-updated`**.
- Legacy aliases retained; no new duplicate names.
- `auction.extended` only when extension occurred.
- Safe DTO (no reservePrice / wallet / raw docs).

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## 7. Finalization

- `auction:ended` no longer sets `liveStatus=LIVE_ENDED` or mutates settlement.
- Read-only: succeeds only if Auction already `finished`/`cancelled`.
- Cron → `finalizeAuction` remains the normal path.
- No winner selection / refunds / Orders in Socket handlers.

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## 8. Legacy seller / haraj

| Class | Handling |
|---|---|
| A Required compat | Dual-read `seller` on enter notify / older docs |
| B Optional live overlay | `start-live` / `enter-live` / comments / viewers (marked in `liveHelper`) |
| C Duplicate | `auction.bidAccepted` / `auction.priceUpdated` aliases |
| D Unsafe/obsolete | Client-driven `auction:ended` mutation — **removed** |

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## 9. Agora

Documented as optional overlay; currently disabled/partial; **not** a merge blocker for core Auction.

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## 10. Auth / ownership

- Bidder identity from handshake only.
- Socket bids require `client` role.
- `placeBidAtomic` enforces owner-cannot-bid, PAID deposit, live window, amount rules.
- Provider ownership preferred; seller dual-read for legacy only.

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## 11. Room / data safety

- `getAuctionRoom` requires valid 24-hex ObjectId.
- Bid broadcasts only to `auction:{id}`.
- Public room join ≠ permission to bid.
- Disconnect does not finalize auctions.

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## 12–13. Tests

| Suite | Result |
|---|---|
| `test/auctionSocketContract.test.js` | **14 pass / 0 fail** |
| Mongo concurrency (+ conflict assert) | **4 pass / 0 fail** |
| Full `npm test` (after Postman regen) | **809 pass / 0 fail** |
| `node --check` on touched JS | clean |
| `git diff --check` | clean |

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## 14. Documentation

- `docs/AUCTION_SOCKET.md`
- `docs/AUCTION_MANUAL_QA.md` (Socket staging checklist)
- Inventory: `tasks/auction-socket-event-inventory.md`
- OpenAPI HTTP paths unchanged this pass; Postman regenerated for prior auction path drift

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## 15. Remaining staging QA

Must still run live: HTTP bid + Socket bid + idempotent replay + stale + extension + reconnect + cron finalize + observe ended + wallet/Order + no haraj settlement mutation.

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## 16. Known limitations

- Handshake still trusts query `userId` (existing project pattern; not redesigned).
- Agora disabled/partial.
- Live overlay still uses seller/haraj for broadcast host checks.
- Classification cannot become READY TO MERGE without live Socket staging.

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## 17. Merge recommendation

Keep PR on `auction-lifecycle-delivery` for review.
**Do not promote to READY TO MERGE** until staging Socket matrix is green.