Follow-up to the foundation commit. Drops the hand-rolled
try/catch + spinner injection + empty-state HTML + error-swallow
in seven sections by routing them through
`createDiscoverSectionController`. Each section keeps its existing
public function name + signature so callers, refresh buttons, and
dashboard wiring don't notice the swap.
Migrated:
- `loadDiscoverReleaseRadar` (Fresh Tape)
- `loadDiscoverWeekly` (The Archives)
- `loadDecadeBrowser` (Time Machine intro carousel)
- `loadGenreBrowser` (Browse by Genre intro carousel)
- `loadSeasonalPlaylist` (Seasonal Mix)
- `loadYourArtists`
- `loadBecauseYouListenTo`
Skipped (don't fit the controller's single-fetch / single-render-target
shape):
- `loadYourAlbums` — paginated grid + filters, updates four separate
UI elements (subtitle, filter chips, download button, grid).
- `loadSeasonalAlbums` — receives pre-fetched data from
`loadSeasonalContent`; no fetch URL to satisfy.
Hidden / dead sections (~13 of them — `loadPersonalized*`,
`loadDiscoveryShuffle`, `loadFamiliarFavorites`, `loadCache*`)
untouched in this pass. Separate audit commit will surface or kill
them.
Two side-effects worth noting:
- `loadDecadeBrowser` and `loadGenreBrowser` migrated for
completeness, but neither appears wired into `loadDiscoverPage` or
any inline handler. May be dead code — flagged for the audit pass.
- `loadSeasonalPlaylist` needs a per-load fetch URL (varies by
`currentSeasonKey`); worked around by recreating the controller
when the key changes. Cleaner option: extend the controller to
accept a `fetchUrl: () => string` callable form. Tracked in the
follow-up extension list below.
Controller extension candidates surfaced for follow-up:
- Callable `fetchUrl` (resolves the seasonal playlist
recreate-on-key-change hack)
- Explicit `isStale` / `onStale` hook (so Your Artists doesn't
fold stale handling into renderItems)
- `beforeLoad` / `ensureContentEl` hook (so Because You Listen To
can let the controller own the dynamic container creation)
- No-fetch `data:` mode (so render-only sections like Seasonal
Albums can use the controller too)
- `onSuccess(data)` hook (cleaner home for header / subtitle
side-effects vs folding them into renderItems)
Net: -76 lines in `discover.js` even after adding the per-section
render helpers. 2204/2204 full suite green. JS parses clean.
Broque Thomas
4ee78bb973