feat(notes): add {{episodelink}} template tag to resume an episode from its note (#35)

[chhoumann]

Summary

Closes #35.

Adds a {{episodelink}} note-template tag so a podcast note can link straight back to its episode in the PodNotes player and resume from where you left off — or start at the beginning if it has never been played. This is the workflow the issue author asked for: put the tag in the episode-note template once, and every note gets a "back to the episode" link automatically, no manual timestamp-capturing required.

[▶️ Resume in PodNotes]({{episodelink}})

How it works

The crux of #35 is that "last played location" is dynamic — it must be resolved when the link is clicked, not baked in when the note is created. So:

• {{episodelink}} emits an obsidian://podnotes deep link that carries no time parameter — just episodeName + url (src/utility/buildEpisodeResumeLink.ts).
• URIHandler now treats an absent/empty time as "resume": it reopens the episode and defers the seek to the player's existing saved-progress restore (EpisodePlayer.svelte → restoreSavedPlaybackTime), which already resumes from playedEpisodes[key].time or 0. No new resume logic — it reuses the well-tested path that powers normal grid-click playback.
• Links that do carry a time (existing timestamp links / {{linktime}}) hit the unchanged explicit-time branches and behave byte-for-byte as before.

Addressing mirrors API.getPodcastTimeFormatted: a streamed episode links by its feed URL (the player refetches the feed and matches by title); a local/downloaded episode links by its on-disk path. When neither is known the tag yields an empty string, so a template degrades gracefully instead of emitting a broken link.

Why this approach

• Template link, not a command. The issue author explicitly wanted it in the template ("create it for every new note, not by hand"). A link also embeds the episode identity directly in the note, avoiding a fragile note→episode reverse lookup that a command would need.
• Defer the seek to the player. Reusing restoreSavedPlaybackTime means "resume where I left off" stays correct even as playback progress changes after the note is written — and there's no duplicated seek logic to drift.
• Minimal, additive TemplateEngine change (a single new tag) to stay collision-safe with the in-flight [BUG] Handling of max path length when creating notes #22 work.

Backward compatibility

No migration. Existing obsidian://podnotes links always include time (and encodePodnotesURI never emits an empty time), so they never reach the new no-time path. The two explicit-time branches in URIHandler are unchanged.

Testing

• npm run lint, npm run typecheck, npm run build, npm run format:check: clean.
• npm run test: 382 passed. New unit tests cover the link builder (remote/local/downloaded/missing-URL/+-encoding), the URIHandler no-time resume across branches (non-loaded, already-loaded, empty-time, invalid-time still rejected, target's saved resume point preserved), and the {{episodelink}} template tag. The deferred seek itself is covered by the existing EpisodePlayer.test.ts restore tests.
• Real-Obsidian runtime verification (isolated worktree E2E vault): drove the registered protocol handler with a no-time link and confirmed the player opens and currentTime resumes to the saved position (240s for a partially-played episode; 0s for an unplayed one). I did not commit those two E2E cases because driving live playback exposed a pre-existing concurrent-writeFile race on data.json between the harness's per-test reseed and the plugin's saveSettings (it destabilized the shared-instance suite); the behavior they assert is covered deterministically by the unit tests above.

Docs

docs/docs/templates.md documents {{episodelink}} in the note-template section.

Review

Reviewed via one comprehensive pass plus two adversarial reviewers (backward-compat-break and does-resume-actually-work lenses) — all three returned ship. The one nit (a no-time test seeded a saved time without asserting it) was addressed by asserting the target's saved resume point survives currentEpisode.set's side effects.

[cloudflare-workers-and-pages]

Deploying podnotes with    Cloudflare Pages

Latest commit:	f7cf896
Status:	✅  Deploy successful!
Preview URL:	https://b3056058.podnotes.pages.dev
Branch Preview URL:	https://chhoumann-35-note-to-episode.podnotes.pages.dev

View logs

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 207a069293

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[chatgpt-codex-connector]

Fall back to downloaded paths without feed URLs

For a non-local file episode that has been downloaded but has no feedUrl (the type allows this, and older/imported episode snapshots can lack it), this else arm returns undefined and {{episodelink}} renders as an empty string even though downloadedEpisodes.getEpisode(episode)?.filePath is a valid vault address the URI handler can resolve through the Local Files projection. Check the downloaded file path before giving up on non-local episodes so downloaded/offline-addressable episodes still get a resume link.

Useful? React with 👍 / 👎.

[chhoumann]

Review round (ultracode + adversarial) — addressed in f7cf896

Ran a comprehensive ultracode pass plus adversarial reviewers from several lenses (correctness/skeptic, architecture, minimalist, spec-fit, backward-compat) across two rounds. Most verdicts were ship; the reviewers converged on two real, in-scope issues, now fixed:

1. Finished episodes resumed at EOF. When an episode was already finished, its saved position is its end (time === duration). The no-time link reopened it pinned to the end, and autoplay immediately fired ended → markAsPlayed + queue.playNext(), bouncing the user to a different episode. This is outside the issue's "last location, or the beginning if not played" intent. Fixed: the no-time path now resolves the resume point explicitly (resolveResumeTime) and restarts a finished episode from the beginning — for both non-loaded and already-loaded episodes.

2. A stale pending seek could override the resume. The no-time path relied on the absence of requestedPlaybackTime; if a previous timestamp link had left a seek pending (metadata still loading), it could win on the next metadata load. Fixed: the no-time path now arms requestedPlaybackTime explicitly with the resolved resume time, so the resume is deterministic and overrides any stale request.

Plus two cleanups: buildEpisodeResumeLink now falls back to a downloaded copy's path when an episode lacks feedUrl (older/imported snapshots get a working link instead of none), and a redundant cast was dropped (isLocalFile already narrows).

Deliberately not changed (out of scope): the player's shared restoreSavedPlaybackTime (grid-click behavior) is untouched, and the pre-existing title-only episode-identity matching in URIHandler (shared with existing timestamp links) is left as-is to avoid a behavioral regression beyond #35.

Tests: 386 passing (added finished-resume for non-loaded + loaded, stale-seek override, and the downloaded-without-feedUrl link). Lint, typecheck, build, format all clean; CI green.

[github-actions]

🎉 This PR is included in version 2.17.0 🎉

The release is available on GitHub release

Your semantic-release bot 📦🚀