Vellum/web
mithral 67f145a9b1 Waves 7-8: playback engine selection, and missing files you can see
Wave 7 - engines, chosen per file by the client's own capabilities
- internal/engine: a registry. html5 is built in and declares a CONSERVATIVE
  browser baseline (h264/vp8/vp9/av1, deliberately no hevc and no mpeg4, because
  that is what was measured). mpv, vlc and mdk are registered as native engines
  declaring the broad support those libraries really have.
- The server never declares a file playable. It reports what is in the file and
  matches it against the engines the CLIENT declares. Proven:
      engines=["html5"]       -> playable=false engine=null reason=vcodec:hevc
      engines=["html5","mpv"] -> playable=true  engine=mpv
  Same file, different answer, because the client offered a different engine.
  That is what makes adding a native client a registration rather than a rewrite.
- internal/playback: GET /playback/engines and POST /playback/resolve, behind
  auth and the same grant chokepoint. An unreadable item is 404, not 403.
- web/src/lib/capabilities.ts: uses navigator.mediaCapabilities.decodingInfo(),
  which returns {supported, smooth, powerEfficient}. That is real client-hardware
  detection and it distinguishes "cannot decode" from "can decode but it will
  stutter and drain the battery". Feature-detected; degrades to the server
  baseline rather than throwing.
- VideoPlayer consults the server as an ADVISORY only. The element remains the
  source of truth: the server's note appears first, then the element's own
  confirmation replaces it once videoWidth proves the answer. Verified on HEVC —
  "Playback may not work here" at 0-906ms, "Video cannot play here" from ~1208ms.

Wave 8 - missing files: visibility and an explicit purge
- migrations/0011 adds missing_since to media_items and media_files.
- It is written only on the TRANSITION into missing, so the age says when the
  file first vanished rather than the last rescan. Proven byte-identical across a
  rescan, and cleared when a file is restored.
- GET /api/v1/missing (grant-scoped) and POST /api/v1/libraries/{id}/purge
  (admin only). The purge deletes only items that are missing AND have no
  present file, and its cascade into progress/item_people/item_views/game_saves
  is enumerated in a comment — that cascade is exactly why deletion is never
  automatic. Proven: 19 items -> 18, only the missing one, the non-missing item
  untouched and its files intact, second purge returns 0.
- MissingFiles.svelte in the Manage nav: title, kind, library, path, human age,
  and a per-library Purge behind a confirmation that names the count and says
  progress cannot be regenerated.

Coordinator wired playback.NewHandlers into main.go (the one line agents were
told to leave alone).

Verified end to end: 17 packages pass, gofmt/vet clean, svelte-check 0/0, and
every claim above checked against the running server.
2026-10-11 14:36:55 -04:00
..
public Apply the brand: charcoal, blue-violet, purple, and the real logo 2026-10-10 17:41:49 -04:00
src Waves 7-8: playback engine selection, and missing files you can see 2026-10-11 14:36:55 -04:00
.gitignore Web UI: Svelte app, embedded into the binary 2026-10-09 16:40:58 -04:00
embed.go Web UI: Svelte app, embedded into the binary 2026-10-09 16:40:58 -04:00
index.html Make the brand the only theme 2026-10-11 13:41:55 -04:00
package.json web: type process.env in vite.config (add @types/node) 2026-10-10 16:33:05 -04:00
pnpm-lock.yaml web: type process.env in vite.config (add @types/node) 2026-10-10 16:33:05 -04:00
pnpm-workspace.yaml Web UI: Svelte app, embedded into the binary 2026-10-09 16:40:58 -04:00
README.md Web UI: Svelte app, embedded into the binary 2026-10-09 16:40:58 -04:00
svelte.config.js Web UI: Svelte app, embedded into the binary 2026-10-09 16:40:58 -04:00
tsconfig.json web: type process.env in vite.config (add @types/node) 2026-10-10 16:33:05 -04:00
vite.config.ts dev: fix the Vite proxy and add a one-command dev runner 2026-10-10 16:32:32 -04:00

Vellum web

Svelte 5 + Vite + TypeScript single-page app. It is built to a static bundle in dist/ and embedded into the Go binary, so all asset paths are relative (base: './' in vite.config.ts).

Commands

pnpm install
pnpm dev      # dev server on :5173, proxying /api to :7788
pnpm build    # writes dist/
pnpm check    # svelte-check

Run the Go server on :7788 (make run from the repo root) and pnpm dev proxies API and health requests to it, so cookies and sessions behave exactly as they will in production.

Layout

src/
  main.ts                 entry point
  App.svelte              login gate -> shell
  app.css                 design tokens and base styles
  lib/
    api.ts                typed client; mirrors the Go handlers
    session.ts            auth + library stores
    nav.ts                view state
    components/
      Login.svelte
      Shell.svelte        nav + view switch
      Libraries.svelte    library list, create, scan, delete
      LibraryView.svelte  item grid with covers
      Reader.svelte       epub.js reader with progress sync
      Users.svelte        admin user management

The reader resumes from a spine index, which is why progress positions are integers: it round-trips through the polymorphic progress table without needing a text column.