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Use Plex's lastViewedAt for the date correction, not just Tautulli

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The correction shipped in the previous commit fired zero times on the live
library. It compared Plex's addedAt against MediaShelf's first completed
Tautulli play, but Tautulli history only starts 2025-03-08 and the wrong dates
are overwhelmingly older than that. The evidence that proved the bug in the
first place was Plex's own lastViewedAt - which the provider parsed and then
dropped on the floor.

Now stored as provider_last_viewed_at and folded into the bound:
added_at = MIN(provider_added_at, first_watched_at, provider_last_viewed_at).
Seasons also get their own provider_added_at (MIN over episodes), without which
their added_at_source could never be computed.

Fixture gains the case that actually failed: added last week, last viewed 1500
days ago, no Tautulli history at all - so only lastViewedAt carries it. Also
tightened test_correction_leaves_unwatched_items_alone, which defined
"unwatched" as watch_count=0 and so wrongly expected an item with Plex view
evidence to be left alone.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GVbG48GAXfCZatcmX123Ra
This commit is contained in:
Jess Hallsworth 2026-09-10 17:49:20 +00:00
parent e819548ff2
commit edbb6f088f
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6 changed files with 134 additions and 36 deletions
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mediashelf/queries.py
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@ -66,6 +66,7 @@ BASE_COLUMNS = """
i.distinct_watcher_count, i.pre_history, i.kept, i.kept_via, i.kept_mark_id,
i.provider_view_count, i.status, i.parent_id, i.season_number,
i.provider_added_at, i.added_at_source, i.first_seen_at,
i.provider_last_viewed_at,
parent.title AS show_title
"""
@ -224,6 +225,8 @@ class Query:
"provider_added_at": d.get("provider_added_at"),
"added_at_source": d.get("added_at_source"),
"first_seen_at": d.get("first_seen_at"),
"first_watched_at": d.get("first_watched_at"),
"provider_last_viewed_at": d.get("provider_last_viewed_at"),
"last_watched_at": d.get("last_watched_at"),
"last_touched_at": d.get("last_touched_at"),
"watch_count": d.get("watch_count") or 0,