d4a5378adf
Frontend: - Replace Next.js with Vite + React + TypeScript - Add new component architecture (app-shell, sidebar, dashboard modules) - Implement product modules: FRAME, safety protocols, walkthrough checkin, campus/staff attendance, personality quiz, sign language, classroom timer - Add shadcn/ui component library with Tailwind CSS - Remove legacy generated components, stores, and pages Backend: - Add product migrations: frame_entries, user_progress, safety_quiz_results, walkthrough_checkins, communication_events, personality_quiz_results, campus_attendance_config/summaries, staff_attendance_records, content_catalog - Add corresponding models, services, and routes - Implement cookie-based auth with refresh token rotation - Add content catalog seeder with product content - Migrate to ESLint flat config - Switch from yarn to npm Infrastructure: - Update .gitignore for new tooling - Add project documentation (CLAUDE.md, docs/) - Remove deprecated config files and yarn.lock Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
71 lines
2.8 KiB
Markdown
71 lines
2.8 KiB
Markdown
# Sign Language Integration
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## Purpose
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`SignLanguage` renders backend-owned sign catalog content and current-user learned progress through the three-layer frontend architecture.
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```text
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View -> Business Logic -> API/Data Access -> Backend
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```
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Runtime sign records, teaching tips, video URLs, GIF URLs, step instructions, and page-level teaching reminders belong to backend content catalog payloads. The frontend owns only UI state, filter config, style tokens, and progress interaction wiring.
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## Frontend Layers
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View:
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- `frontend/src/components/frameworks/SignLanguage.tsx`
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- `frontend/src/components/frameworks/SignLanguageVideoModal.tsx`
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- `frontend/src/components/sign-language/SignLanguageView.tsx`
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- `frontend/src/components/sign-language/SignLanguageHeader.tsx`
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- `frontend/src/components/sign-language/SignLanguageRememberPanel.tsx`
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- `frontend/src/components/sign-language/SignLanguageProgressPanel.tsx`
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- `frontend/src/components/sign-language/SignLanguageFilters.tsx`
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- `frontend/src/components/sign-language/SignLanguageGrid.tsx`
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- `frontend/src/components/sign-language/SignLanguageCard.tsx`
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- `frontend/src/components/sign-language/SignLanguageVideoModal.tsx`
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Business logic:
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- `frontend/src/business/sign-language/hooks.ts`
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- `frontend/src/business/sign-language/selectors.ts`
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- `frontend/src/business/sign-language/types.ts`
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Shared contracts and UI config:
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- `frontend/src/shared/types/app.ts`
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- `frontend/src/shared/constants/signLanguage.ts`
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- `frontend/src/shared/constants/contentCatalog.ts`
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## Backend Contracts
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The page reads content from:
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- `GET /api/public/content-catalog/sign-language-items`
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- `GET /api/public/content-catalog/sign-language-page-content`
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Learned progress uses:
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- `GET /api/user_progress?progress_type=sign_learned`
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- `POST /api/user_progress`
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- `DELETE /api/user_progress/by-item`
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Content payloads are seeded in:
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- `backend/src/db/seeders/content-catalog-data/content-catalog-seed-payloads.js`
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## Behavior
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- `useSignLanguagePage` loads sign items, page content, and learned sign progress.
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- Selectors handle category counts, search/category filtering, progress percentage, video duration, filter normalization, and YouTube search URL construction.
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- View components receive a prepared page model and do not call API/data access modules.
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- The video modal uses `useSignLanguageVideoModalState` for GIF/video mode, GIF loading state, and step-guide expansion.
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- Loading, empty, and error states are explicit through `StatePanel`.
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## Data Ownership Rules
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- Do not add sign records, teaching tips, page reminders, video URLs, GIF URLs, or step instructions to frontend constants.
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- Do not add frontend fallback sign payloads.
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- Keep frontend constants limited to filter options, category style classes, external URL templates, and UI view modes.
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- Test-only fixtures may live in selector tests or `frontend/src/test-seeds/`.
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