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familienarchiv/frontend/src/lib/shared/README.md
Marcel fee519b8a9
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docs(timeline): document /zeitstrahl, lib/timeline, monthBuckets move; RTM #779
Route tables (CLAUDE.md + frontend/CLAUDE.md), the document/timeline.ts ->
$lib/shared/utils/monthBuckets move (document + shared READMEs), GLOSSARY
Lebensweg entry, the c4 l3-frontend people-stories diagram, and the RTM rows
REQ-001..027 for feature zeitstrahl-global-view (#779), all marked Done.

Refs #779
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-13 20:00:00 +02:00

5.7 KiB

shared (frontend)

Cross-domain utilities and UI primitives. Any file here is consumed by two or more domain folders and has no domain identity of its own.

Admission criteria (what belongs here)

A file belongs in shared/ if it meets all three conditions:

  1. No domain identity — it does not represent a Document, Person, Tag, etc.
  2. Consumed by ≥ 2 domain folders — or is framework infrastructure that every domain depends on.
  3. Generic — could work in a different SvelteKit project with zero business-logic changes.

If any condition fails, the file belongs in the domain folder of its primary consumer.

What this folder owns

Sub-folder / file Purpose
api.server.ts Typed openapi-fetch client factory — the standard entry point for all backend API calls in server-side load functions and actions
errors.ts Mirror of the backend ErrorCode enum + getErrorMessage() → Paraglide i18n key mapping
types.ts Cross-domain TypeScript interfaces
utils.ts Pure utility functions (date formatting, sorting, debounce)
utils/monthBuckets.ts Pure month-bucket math (boundaries, sequences, gap-fill, year aggregation, axis ticks) shared by the document/ density chart and the timeline/ density strip — moved up from document/timeline.ts so timeline/ need not import document/
primitives/Sparkline.svelte Fixed-series bar sparkline (one bar per value) — used by the timeline density strip
relativeTime.ts Human-relative time formatting ("2 days ago")
primitives/ Generic UI components: BackButton.svelte, form inputs, pagination, layout shells
discussion/ Comment/mention editor shared by document/ and geschichte/
dashboard/ Family Pulse widget and recent-activity components assembled in the / route
hooks/ Svelte 5 reactive hooks: useTypeahead, useUnsavedWarning
services/ Generic client-side service helpers
actions/ Shared SvelteKit form action utilities
server/ Server-only shared utilities (load function helpers)
help/ Coach marks and empty-state components used across multiple domains

What does NOT belong here

  • Components owned by one domain — move to that domain's folder.
  • Domain-specific business logic — even if shared, it belongs in the owning domain's public surface.

Adding to shared/

If you need to add a file here, confirm it meets all three admission criteria. If it's domain-adjacent, check whether the owning domain should export it as part of its public surface instead.