3 Commits

Include renames

Author	SHA1	Message	Date
timothy	6f4497e1ce	fix(484): guard the nested TV season and episode sweeps against projection failures ... Review finding 1 (blocking). ScanSeasons' FlagFileNotFoundSeasons and ScanEpisodes' FlagFileNotFoundEpisodes had no guard at all — neither #477's nor #484's — so ProjectToSeason / ProjectToEpisode returning Failed() was computed and discarded. #477 scoped those out because "the blast radius is one show's seasons / one season's episodes", which holds for a per-parent EMPTY fetch but not for a projection failure: that is systematic by construction. One bad code path fires on every parent, so every season enumerates zero episodes, existing.Except([]) is the whole episode library, and EmptyTrashHandler deletes it permanently. Threads the counter into GetSeasonLibraryItems / GetEpisodeLibraryItems(WithoutPeople) for Jellyfin and Emby using the same optional-trailing-param shape, and guards both sweeps with MediaServerReconciliationGuard.ShouldFlagMissingDescendants — the same class and the same private failure predicate as ShouldFlagMissing, deliberately WITHOUT #477's empty-fetch branch so per-parent empty behaviour (and #476's cascade, which depends on it) is unchanged. Also from the review: - finding 3: tests now pin the same-instance JOIN at every level (movie, show, season, episode, music video) by driving the real ScanLibrary entry point and recording the failure from inside the enumeration, so a refactor handing the api client a fresh counter goes red. - finding 4: the missing-library Failed() branch is documented as defensive and unreachable. - finding 2: the mass-Skip residual (Emby's response-shape-dependent MediaSources guard, Plex's pre-projection filter) is stated as a known limitation in the decision record. - finding 5: the log-contract change (only the #484 message when both refusals apply) is noted. fixes #484	2026-07-25 16:36:35 +02:00
timothy	e3645a2840	feat(484): suppress the media-server sweep on projection failures; reject the ratio threshold ... Extends MediaServerReconciliationGuard (#477) with a second deterministic refusal: when the enumeration that produced the incoming set silently dropped items whose projection THREW, the file-not-found sweep is refused. A dropped item the server did return is indistinguishable from a deletion at the reconcile step, so a projection regression could otherwise mass-flag a healthy library FileNotFound (which EmptyTrash then deletes permanently). Deliberate guard-clause skips (STRM files, virtual items, unsupported types) are explicitly NOT failures and never suppress a sweep — counting them would permanently disable reconciliation for any library holding a single STRM file. The ratio / missing-fraction threshold is REJECTED, not deferred: it is a two-sided heuristic with no tunable default and no telemetry, and the failure it approximates is exactly observable via the projection-failure count (a genuine bulk deletion produces zero failures). Seam is deliberately narrow — the private ProjectTo* contract inside each api client changed from Option<T> to MediaServerProjectionResult<T> (projected/skipped/failed), the paged helper counts IsFailure in one place, and the scanner reads it through an optional trailing MediaServerProjectionFailureCounter on only the five library-level methods that feed a sweep. The counter is per-enumeration state created by the scanner, never a field on an api client. fixes #484	2026-07-25 16:36:35 +02:00
timothyandClaude Opus 4.8	aa32fd78dd	fix(477): guard media-server library sweeps against successful-but-empty fetches ... A successful fetch returning zero items made existing.Except([]) flag the ENTIRE library FileNotFound in one scan — feeding EmptyTrashHandler's permanent delete and emptying every affected collection (dead channels). Add a shared MediaServerReconciliationGuard that skips (and logs a Warning) the sweep when incoming==0 while items exist, wired into the three library-level sweeps (Television shows / Movie / OtherVideo). An empty incoming set is indistinguishable at scan time from a mid-restore / emptied-upstream error (both report a zero total), so this deliberately overrides #476's degenerate "last item removed => empty incoming => flag" case. #476's cascade still fires for partial deletions (survivors present); its characterization test moves from an empty incoming to a survivor+removed partial-deletion case. Tests: policy table (MediaServerReconciliationGuardTests) + per-scanner integration proving the wiring (empty incoming + non-empty existing flags/reindexes nothing). Proven non-vacuous by neutralizing the guard. Nested TV season/episode sweeps left unguarded (bounded blast radius); ratio-threshold + projection-failure detection deferred to a follow-up. docs/decisions.md updated. Fixes #477 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>	2026-07-19 23:28:27 +02:00