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refactor(peer): split local library and operation UI events

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Replace the `a9f9845` local-update dedup cache with explicit peer event
semantics. Local scans now emit `LocalLibraryChanged` when the library changes,
while operation mutations emit `ActiveOperationsChanged` from the mutation
path. Tauri keeps joining those facts into the existing `games-list-updated`
payload, so the frontend contract stays stable.

This removes the cache/invalidation coupling between scan emission and
operation state. The remaining forced local snapshot is explicit: accepted game
directory changes can refresh the UI for an equivalent new path without sending
a peer library delta.

Operation guard cleanup and liveness cancellation now publish the same active
operation snapshot as normal command-handler transitions. The peer CLI JSONL
events follow the same split with `local-library-changed` and
`active-operations-changed`.

Test Plan:
- `just fmt`
- `CARGO_BUILD_RUSTC_WRAPPER= just test`
- `CARGO_BUILD_RUSTC_WRAPPER= just clippy`
- `git diff --check`

Refs: CLEAN_CODE_PLAN_1.md
This commit is contained in:
ddidderr
2026-05-18 21:25:20 +02:00
parent be00a7a298
commit 41e9a0efc1
14 changed files with 657 additions and 255 deletions
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PEER_CLI_SCENARIOS.md
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@@ -8,7 +8,7 @@ for deterministic local runs; mDNS/macvlan remains an environment smoke path.
| ID | Scenario | Setup | Expected result |
| --- | --- | --- | --- |
| S1 | Startup scan | Start one peer with `fixture-alpha`. | Peer emits `local-peer-ready` and `local-games-updated`; catalog fixture games are `downloaded=true`, `installed=false`, `availability=Ready`. |
| S1 | Startup scan | Start one peer with `fixture-alpha`. | Peer emits `local-peer-ready` and `local-library-changed`; catalog fixture games are `downloaded=true`, `installed=false`, `availability=Ready`. |
| S2 | Direct connect handshake | Start alpha and bravo, send alpha `connect` to bravo's ready address. | Both peers record one remote peer, no self-peer entry appears, and each peer receives the other's library. |
| S3 | Remote aggregation | Empty client connects to alpha and bravo. | `list-games` shows remote-only games once; shared `ggoo` has `peer_count=2`, unique games have `peer_count=1`. |
| S4 | Single-source download, no install | Empty client connected to bravo downloads `bfbc2` with `install=false`. | Client emits `got-game-files`, `download-begin`, `download-finished`, then local `bfbc2` is `downloaded=true`, `installed=false`; root files exist and `local/` does not. |