`pick_current_episode` rung 3 returned the first unwatched episode in
series order. A viewer who skipped the pilot but is three seasons deep
was sent back to S1E1: the gap was a deliberate skip, not the place they
stopped.
This read as flaky rather than consistently wrong because rung 3 only
fires when the server's Next Up (rung 2) yields nothing, and
`resolve_current_episode` swallows that call's errors with
`.unwrap_or_default()`. `HybridRepository::get_next_up_episodes`
delegates unconditionally to the online repo, so any unreachable-server
moment silently degraded to the empty vec — same series, same watch
state, different answer depending on one request's outcome.
Rung 3 now scans the ordered list from the end with `rposition(is_played)`
and returns the episode after the furthest-watched one, falling back to
the previous first-unwatched behaviour when nothing is watched or the
series is finished. Season crossing comes free from the already-flat
series ordering, and `season_rank` keeps specials last so a watched
special cannot mark a show finished.
Tests written first and confirmed failing (S1E1 where S3E4 was
expected), covering the skipped-pilot case, rolling into the next season
past a skipped episode, and the watched-special case. All 17 existing
tests still pass.
Note: cargo test could not run locally (javascriptcoregtk-4.1 /
webkit2gtk-4.1 absent on this host). The pure policy half plus its
verbatim test module were extracted into a standalone crate to get real
red/green; the full crate suite still needs a run on a complete
toolchain.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
dtourolleandClaude Opus 5
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