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4a31ee741e Rewrite server + client in TypeScript, service-oriented server architecture
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Full rewrite, requested directly. Two independent decisions since
TypeScript can't compile itself away at runtime - "no build step" and
"TypeScript" are mutually exclusive, not a small addition to the existing
setup:
- Server: plain tsc (no bundling need - Node resolves its own requires).
  server/dist mirrors server/src 1:1.
- Client: esbuild (does need bundling) - picked over a heavier tool
  (Vite, webpack) since this app's whole client is a couple thousand
  lines; its built-in CSS-from-JS bundling and a `text` loader for
  importing an HTML template as a string cover everything needed via a
  ~30-line hand-written build script (client/build.mjs), not a config
  file for something built for much bigger apps.
Both projects compile independently (no shared-types package - considered
and rejected as more structural commitment than this app's size
justifies; server/src/types.ts and client/src/types.ts have their own
overlapping DTO copies instead). server/'s `npm run dev` uses tsx for a
compile-free dev loop; `npm run build` (tsc) is what server/Dockerfile's
build stage actually runs. client/'s `npm run watch` is esbuild's own
watch mode.

Server: one singleton service class per feature, generalizing the
PartyManager/MusicQueueService pattern that already existed, rather than
route handlers with logic inline:
- AuthService (from embyAuth.js), CatalogService (NEW - previously ~15
  route handlers' worth of Emby queries/DTO shaping inlined directly in
  index.js), PartyService (renamed from PartyManager), MusicQueueService
  (ported as-is, already service-shaped), SocketGateway (from
  socketHandler.js), EmbyClient (from embyProxy.js - low-level plumbing,
  not called a "service" since it has no state/feature of its own).
- index.ts is now thin wiring only: every route reads the session, calls
  one service method, returns the result.
- Real error-handling pass, not just a port: Express 4 doesn't catch a
  rejected Promise from an async handler on its own - a new asyncRoute()
  wrapper + a single error-handling middleware replace what used to be
  zero handling for a request that outright throws. CatalogService
  methods throw a CatalogFetchError (own HTTP status - getRawItem now
  preserves Emby's real 404 instead of a blanket 502) rather than
  touching res directly.

Client: one folder per view (src/views/<name>/<Name>.ts + .html + .css)
instead of one .js file with the markup inline as a template literal. A
view's static shell moved to its .html (esbuild's text loader); per-item
dynamic content (tile grids, episode/track lists) stays as template
-literal-returning functions in the .ts, same as before. Genuinely shared
CSS (tiles, the presence avatar, the series/album detail-header pattern,
track-list rows) lives under src/styles/, imported by whichever views
need it; src/styles/base.css holds the global primitives, imported once
by app.ts. Deliberately not pushed to zero duplication/renaming shared
classes across views for tidiness alone - not worth the risk in a change
already this large. Player.ts keeps its pre-existing internal shape (the
/party/:id dispatcher + the video renderer in one file, importing
renderMusicPlayer from the sibling folder) - that pattern predates this
rewrite and only needed types, not restructuring.

Two real things the port itself caught, not just carried over:
- A type bug: porting SocketGateway's "members" broadcast, reusing
  PartyService's PublicMember interface would have type-checked fine but
  was the wrong (larger) shape - the socket broadcast never included
  isPaused/positionTicks, only the REST response did. Caught by
  comparing against the original JS line by line, fixed with a dedicated
  SocketMemberDto type.
- A real Express+TypeScript friction point: noUncheckedIndexedAccess
  (enabled in both tsconfigs - genuinely useful elsewhere, e.g.
  PartyService.advanceQueue's array indexing) makes every req.params.xxx
  read a type error, since Express's index-signature typing doesn't know
  a matched route's required :name segment is always present. Resolved
  once with a param(req, name) helper rather than 15 routes' worth of
  scattered assertions.

Verified: both projects type-check cleanly in strict mode (tsc --noEmit -
not just "esbuild didn't complain", which it wouldn't even with type
errors present, since it transpiles without checking). Server: every
unit/integration test from the JS version (party lifecycle logging, the
music queue's timer/vote/pause behavior incl. real setTimeout
auto-advance, the socket integration through SocketGateway+PartyService+
MusicQueueService together, the library-type filter, the playback
-override forcing) re-run against the compiled server/dist output -
identical results; the compiled server was actually started and confirmed
listening cleanly. Client: since esbuild bundles everything into one
app.js (no more individually-importable view modules), testing moved to
driving the real compiled bundle through its actual boot -> login ->
router -> view chain (mocked fetch/Socket.IO/hls.js, real clicks/hash
navigation) - arguably more realistic than the old per-module approach.
Confirmed this way: login, the sidebar, home's carousels, a video party
(presence, host controls, leave), the full music hierarchy, a music party
(presence, vote-skip, pause toggle, the inline browse-and-add panel), and
the series page - all through client/dist's actual output, no thrown
errors anywhere.

Not verified: an actual `docker build` of the new multi-stage Dockerfile -
this dev environment has no Docker at all. The build stage runs the exact
npm run build commands already confirmed working locally, just inside
node:20-alpine - the main remaining risk is something environment
-specific, not the build commands themselves, but a real build is still
the first thing to try after this lands.

docs/architecture.md has the full writeup (new "TypeScript and a
service-oriented architecture" section, plus a corrected top-level
"Components" overview that had gone stale even before this change).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-14 09:38:14 +02:00
d621ce7503 Untrack .claude/ (local tooling config, not project source)
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-13 20:53:31 +02:00
6ff9aa29e2 Pivot to a standalone app - Emby plugin hit a hard wall
No plugin API exists for adding a button to Emby's player or item
detail page (confirmed by an Emby developer on their own forum, and
by research since). The only way to reach that would be patching
Emby's shipped web client files directly - outside the plugin,
breaks on every image update, needs manual reapplication. Not worth
the ongoing cost, per discussion.

New direction: a standalone app with its own player. Reads Emby's
catalog/streams directly from the browser (no plugin, no menu
integration fights); a small Node backend only coordinates party
membership and relays playback state over WebSocket - it never
touches a media byte. Auth is Emby-only, as chosen: the browser signs
in against Emby directly and this backend validates whatever token it
gets handed by asking Emby itself (GET /Users/{userId}), never seeing
a password.

Control model changed too: now that we own the player, host controls
playback and everyone else follows (event-driven play/pause/seek +
a 3s heartbeat, drift-corrected on the follower side) - the old
plugin's "everyone keeps their own controls, shared reference
position" was specifically a concession to nudging pre-existing Emby
app sessions we didn't control, which no longer applies.

- server/: Express + ws backend (party lifecycle, WebSocket protocol,
  Emby token validation)
- client/: plain-JS/ES-modules frontend (login, search, item detail,
  party player) - no build step
- Smoke-tested locally end to end against a stubbed Emby URL: server
  starts, routing/auth-gating works, error handling degrades
  gracefully (network failure, invalid token) - see the session
  transcript for the actual browser test run
- docs/architecture.md rewritten around the new design, including why
  the plugin was abandoned and a fresh "assumptions to verify" list
  (CORS between this app's origin and Emby's is the biggest unknown)
- src/WatchParty/ (the Emby plugin) kept as-is for reference, no
  longer the active direction

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-13 20:48:55 +02:00
66af05f259 Scaffold Emby Watch Party plugin
Design: coordinate parties on top of Emby's existing session
remote-control commands (SendPlaystateCommand) rather than building a
new player. Each member keeps their own Emby app/controls; the server
periodically corrects drift and mirrors pause/unpause against one
reference member's reported position.

- src/WatchParty: plugin skeleton (BasePlugin, IServerEntryPoint,
  IService/[Route] API, in-memory party store, drift-correction loop)
- web/control-panel: plain HTML/JS/CSS companion page to create/join
  parties and resync, served by the plugin itself
- docs/architecture.md: full design, sources consulted, and an
  explicit list of SDK details that still need verifying against a
  real build (no .NET SDK / Emby SDK assemblies available in this
  environment to compile against)

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-13 14:02:43 +02:00