docs: M024 feature documentation — shorts publishing, embed support, timeline pins, auto-captioning, templates, citation UX
Updated 7 wiki pages: - Home.md: M024 feature sections for shorts/publishing and player/UX - Data-Model.md: share_token, captions_enabled, shorts_template columns + migrations 026-028 - API-Surface.md: public shorts endpoint, template admin endpoints, captions param - Frontend.md: ShortPlayer, EmbedPlayer, shared utilities, template config panel - Pipeline.md: caption_generator, card_renderer, shorts_generator updates - Player.md: key moment pins, inline technique player, embed player - Chat-Engine.md: citation metadata propagation, shared parseChatCitations
jlightner
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# API Surface
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71 API endpoints grouped by domain. All served by FastAPI under `/api/v1/`.
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74 API endpoints grouped by domain. All served by FastAPI under `/api/v1/`.
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## Public Endpoints (10)
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## Public Endpoints (11)
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| Method | Path | Response Shape | Notes |
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|--------|------|---------------|-------|
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@ -16,6 +16,7 @@
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| GET | `/api/v1/techniques/{slug}` | 22-field object | Full technique detail with relations |
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| GET | `/api/v1/techniques/{slug}/versions` | `{items, total}` | Version history |
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| GET | `/api/v1/techniques/{slug}/versions/{n}` | Version detail | Single version |
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| GET | `/api/v1/public/shorts/{share_token}` | `{format, dimensions, duration, creator_name, highlight_title, download_url}` | Unauthenticated. Returns metadata + presigned MinIO URL. 404 for missing/non-complete shorts (M024/S01) |
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### Technique Detail Fields (22)
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@ -161,10 +162,17 @@ All under prefix `/api/v1/admin/pipeline/`.
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| Method | Path | Purpose |
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|--------|------|---------|
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| POST | `/api/v1/admin/shorts/{highlight_id}/generate` | Queue short generation for approved highlight (3 presets) — 202 response |
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| POST | `/api/v1/admin/shorts/{highlight_id}/generate` | Queue short generation for approved highlight (3 presets). Accepts `captions` boolean param (M024/S04) — 202 response |
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| GET | `/api/v1/admin/shorts/{highlight_id}` | List generated shorts for a highlight with per-preset status |
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| GET | `/api/v1/admin/shorts/{short_id}/download` | Presigned MinIO download URL for completed short |
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### Shorts Template Admin (2) — M024/S04
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| Method | Path | Purpose |
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|--------|------|---------|
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| GET | `/api/v1/admin/creators/{id}/shorts-template` | Returns JSONB template config for creator |
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| PUT | `/api/v1/admin/creators/{id}/shorts-template` | Updates template config with validation (hex color, duration 1.0–5.0) |
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## Other Endpoints (2)
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| Method | Path | Notes |
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@ -36,7 +36,7 @@ The chat endpoint returns a `text/event-stream` response with four event types i
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| Event | Payload | When |
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|-------|---------|------|
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| `sources` | `[{title, slug, creator_name, summary}]` | First — citation metadata for link rendering |
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| `sources` | `[{title, slug, creator_name, summary, source_video_id, start_time, end_time, video_filename}]` | First — citation metadata for link rendering. Video fields added in M024/S05 for timestamp badges. |
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| `token` | `string` (text chunk) | Repeated — streamed LLM completion tokens |
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| `done` | `{cascade_tier, conversation_id}` | Once — signals completion, includes retrieval tier and conversation ID |
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| `error` | `{message: string}` | On failure — emitted if LLM errors mid-stream |
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@ -67,7 +67,9 @@ The LLM is instructed to reference sources using numbered citations `[N]` in its
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- `[1]` → links to `/techniques/:slug` for the corresponding source
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- Multiple citations supported: `[1][3]` or `[1,3]`
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- Citation regex: `/\[(\d+)\]/g` parsed locally in both ChatPage and ChatWidget
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- Citation regex: `/\[(\d+)\]/g` parsed by shared `parseChatCitations()` utility (M024/S05)
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- **Timestamp badges** — when `start_time` is defined, source cards show a badge linking to `/watch/:id?t=N` (M024/S05)
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- **Video filename** — displayed as subtle metadata on source cards (M024/S05)
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## API Endpoint
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@ -207,6 +209,22 @@ Linear: `temperature = 0.3 + weight * 0.2`
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If the creator has no `personality_profile` (null JSONB), the system falls back to pure encyclopedic mode regardless of weight value. DB errors during profile fetch are caught and logged — never crash the stream.
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## Citation Metadata Propagation (M024/S05)
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End-to-end video metadata flow from search results through SSE to frontend source cards.
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### Backend
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- `search_service.py` — `_enrich_qdrant_results()` and `_keyword_search_and()` now batch-fetch `SourceVideo` filenames and include `source_video_id`, `start_time`, `end_time`, `video_filename` in result dicts. Non-key_moment types get empty/None values for uniform dict shape.
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- `chat_service.py` — `_build_sources()` passes all four video fields through to SSE source events.
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### Frontend
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- `ChatSource` interface (in `api/chat.ts`) extended with `source_video_id`, `start_time`, `end_time`, `video_filename` fields.
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- `utils/chatCitations.tsx` — shared `parseChatCitations()` replaces duplicate implementations in ChatPage and ChatWidget. Accepts CSS module styles as `Record<string, string>`.
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- `utils/formatTime.ts` — shared hour-aware time formatter used across timestamp badges and player controls.
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- Source cards now show: timestamp badge (links to `/watch/:id?t=N` when `start_time` defined) and video filename metadata.
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## Key Files
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- `backend/chat_service.py` — ChatService with history load/save, retrieve-prompt-stream pipeline
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@ -217,6 +235,8 @@ If the creator has no `personality_profile` (null JSONB), the system falls back
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- `frontend/src/pages/ChatPage.module.css` — Conversation bubble layout styles
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- `frontend/src/components/ChatWidget.tsx` — Floating chat widget component
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- `frontend/src/components/ChatWidget.module.css` — Widget styles (38 custom property refs)
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- `frontend/src/utils/chatCitations.tsx` — Shared citation parser (M024/S05)
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- `frontend/src/utils/formatTime.ts` — Shared time formatter (M024/S05)
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## Design Decisions
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@ -226,7 +246,7 @@ If the creator has no `personality_profile` (null JSONB), the system falls back
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- **Client-side suggested questions** — Generated from technique titles/categories without API call
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- **5-tier interpolation** — Progressive field inclusion replaces 3-tier step function (D044 supersedes D043)
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- **5-tier interpolation** — Progressive field inclusion replaces 3-tier step function (D044 supersedes D043)
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- **Citation parsing duplicated** — ChatPage and ChatWidget each parse citations independently (extracted utility deferred)
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- **Shared citation parsing** — `parseChatCitations()` in `utils/chatCitations.tsx` replaces duplicate implementations (M024/S05)
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- **Standalone ASGI test client** — Tests use mocked DB to avoid PostgreSQL dependency
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---
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@ -41,6 +41,7 @@ HighlightCandidate (1) ──→ (N) GeneratedShort
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| social_links | JSONB | Platform → URL mapping |
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| featured | Boolean | For homepage spotlight |
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| personality_profile | JSONB | LLM-extracted personality data (M022/S06). See [[Personality-Profiles]] |
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| shorts_template | JSONB | Nullable — intro/outro card config with `parse_template_config` normalizer (M024/S04) |
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### SourceVideo
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@ -238,6 +239,9 @@ Append-only versioned record of per-field consent changes.
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| 023 | Add personality_profile JSONB to creators (M022/S06) |
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| 024 | Add posts and post_attachments tables (M023/S01) |
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| 025 | Add generated_shorts table with FormatPreset and ShortStatus enums (M023/S03) |
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| 026 | Add share_token to generated_shorts + backfill existing complete shorts + unique index (M024/S01) |
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| 027 | Add captions_enabled boolean to generated_shorts (M024/S04) |
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| 028 | Add shorts_template JSONB to creators (M024/S04) |
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## Schema Notes
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@ -288,5 +292,7 @@ Append-only versioned record of per-field consent changes.
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| file_size | Integer | Nullable — bytes |
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| duration_secs | Float | Nullable |
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| error_message | Text | Nullable — on failure |
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| share_token | String(16) | Nullable, unique-indexed — generated via `secrets.token_urlsafe(8)` at pipeline completion (M024/S01) |
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| captions_enabled | Boolean | Default false — indicates successful ASS subtitle generation (M024/S04) |
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| created_at | Timestamp | |
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| updated_at | Timestamp | |
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39
Frontend.md
39
Frontend.md
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@ -23,6 +23,8 @@ React 18 + TypeScript + Vite SPA. No UI library, no state management library, no
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| `/creator/posts` | PostsList | Creator JWT | Creator post management — status badges, edit/delete (M023/S01) |
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| `/creator/posts/new` | PostEditor | Creator JWT | Tiptap rich text editor with file attachments (M023/S01) |
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| `/creator/posts/:postId/edit` | PostEditor | Creator JWT | Edit existing post (M023/S01) |
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| `/shorts/:token` | ShortPlayer | Public | Public short player outside ProtectedRoute — fetches via unauthenticated API (M024/S01) |
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| `/embed/:videoId` | EmbedPlayer | Public | Chrome-free embed player, registered before AppShell catch-all (M024/S03) |
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| `*` | → Redirect `/` | — | SPA fallback |
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*Admin routes have no authentication gate.
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@ -111,7 +113,7 @@ Creator post management at `/creator/posts`.
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- **SidebarNav integration** — accessible from creator dashboard
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- **Files:** `PostsList.tsx`, `PostsList.module.css`
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### Shorts UI (M023/S03)
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### Shorts UI (M023/S03, M024/S01, S04)
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Shorts generation controls in HighlightQueue.
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@ -119,8 +121,32 @@ Shorts generation controls in HighlightQueue.
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- **Per-preset status badges** — color-coded pending/processing/complete/failed with pulsing animation
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- **Download links** — open presigned MinIO URLs in new tab
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- **5s polling** — while any shorts are processing, auto-stops when all settle
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- **Share link + embed code copy buttons** — 🔗 and 📋 icons on completed shorts with `share_token` (M024/S01)
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- **Collapsible template config panel** — intro/outro text, duration sliders, show/hide toggles, color picker, font selection (M024/S04)
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- **Per-highlight captions toggle** — checkbox to enable ASS subtitle generation (M024/S04)
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- **Files:** `HighlightQueue.tsx`, `HighlightQueue.module.css` (updated)
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### ShortPlayer (M024/S01)
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Public short video player at `/shorts/:token`.
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- **Unauthenticated** — fetches via `fetchPublicShort()` (raw `fetch()`, no auth token injection)
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- **Video rendering** — `<video>` element with presigned MinIO URL
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- **Creator/highlight metadata** — format, dimensions, duration, creator name, title
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- **Share/embed buttons** — copy share URL and iframe embed snippet to clipboard
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- **Only renders share/embed** when `share_token` is non-null (graceful for pre-migration shorts)
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- **Files:** `ShortPlayer.tsx`, `ShortPlayer.module.css`
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### EmbedPlayer (M024/S03)
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Chrome-free embed player at `/embed/:videoId`.
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- **No header/nav/footer** — registered at top-level Routes before AppShell catch-all
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- **Content-type-aware height** — 120px for audio-only, 405px for video
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- **"Powered by Chrysopedia" branding** — link opens origin in new tab with `noopener`
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- **Code-split** — lazy-loaded via `React.lazy` + `Suspense`
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- **Files:** `EmbedPlayer.tsx`, `EmbedPlayer.module.css`
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### Personality Slider (M023/S02, S04)
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ChatWidget personality control.
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- **Labels match backend 5-tier interpolation boundaries** (0.2/0.4/0.6/0.8)
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- **Files:** `ChatWidget.tsx`, `ChatWidget.module.css` (updated)
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## Shared Utilities (M024)
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| Utility | Path | Purpose |
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|---------|------|---------|
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| copyToClipboard | `utils/clipboard.ts` | Shared clipboard utility — `navigator.clipboard` with `document.execCommand` fallback (M024/S03) |
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| parseChatCitations | `utils/chatCitations.tsx` | Shared citation parser replacing duplicate implementations in ChatPage and ChatWidget (M024/S05) |
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| formatTime | `utils/formatTime.ts` | Shared hour-aware time formatter replacing duplicated implementations across 4+ files (M024/S05) |
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## Hooks
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| Hook | Purpose |
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- `auth.ts` — authentication + impersonation functions
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- `highlights.ts`
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- `posts.ts` — post CRUD and file upload/download functions (M023/S01)
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- `shorts.ts` — short generation, listing, and download functions (M023/S03) — creator highlight review functions (M022/S01)
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- `shorts.ts` — short generation, listing, and download functions (M023/S03); `fetchPublicShort` for unauthenticated access (M024/S01) — creator highlight review functions (M022/S01)
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- `templates.ts` — shorts template CRUD API client (M024/S04)
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- `follows.ts` — follow/unfollow/status/list functions (M022/S02)
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- `creators.ts` — creator detail with personality_profile and follower_count types (M022/S02, S06)
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15
Home.md
15
Home.md
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@ -25,7 +25,7 @@ Producers can search for specific techniques and find timestamped key moments, s
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- **Technique Pages** — LLM-synthesized study guides with v2 body sections, signal chains, citations
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- **Search** — LightRAG primary + Qdrant fallback with 4-tier creator-scoped cascade
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- **Pipeline** — 6-stage LLM extraction (transcripts → key moments → classification → synthesis → embedding)
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- **Player** — Audio player with chapter markers
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- **Player** — Audio/video player with chapter markers, key moment timeline pins, and inline technique page player
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### Creator Tools
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- **Follow System** — User-to-creator follows with follower counts (M022)
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- **Multi-Turn Chat Memory** — Redis-backed conversation history with conversation_id threading (M022)
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- **Creator Dashboard** — Video management, chapter editing, consent controls
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### Shorts & Publishing (M024)
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- **Shorts Publishing Flow** — Public shareable URLs via `/shorts/{token}`, share_token generated at pipeline completion (M024/S01)
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- **Embed Support** — Chrome-free `/embed/:videoId` player, iframe snippet with audio-aware height (120px audio, 405px video) (M024/S03)
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- **Auto-Captioning** — ASS karaoke subtitles from Whisper word-level timings with `\k` tags for word-by-word highlighting (M024/S04)
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- **Template System** — Creator-configurable intro/outro cards via admin API, ffmpeg lavfi card rendering, concat demuxer assembly (M024/S04)
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### Player & UX (M024)
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- **Key Moment Timeline Pins** — 12px color-coded circle pins (technique=cyan, settings=amber, reasoning=purple, workflow=green) with active-state 1.3x highlighting and touch-friendly hit areas (M024/S02)
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- **Inline Collapsible Player** — On technique pages between summary and body, with bibliography seek wiring and multi-source-video selector (M024/S02)
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- **Citation UX** — Timestamp badge links to `/watch/:id?t=N`, video filename on source cards, shared `chatCitations.tsx` + `formatTime.ts` utilities (M024/S05)
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### Platform
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- **Authentication** — JWT with invite codes, admin/creator roles
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- **Consent System** — Per-video granular consent with audit trail
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---
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*Last updated: 2026-04-04 — M023 post editor, file sharing, shorts pipeline, personality interpolation
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*Last updated: 2026-04-04 — M024 shorts publishing, embed support, timeline pins, auto-captioning, templates, citation UX
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Pipeline.md
30
Pipeline.md
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@ -96,6 +96,36 @@ CLI tool (`python -m pipeline.quality`) with:
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- **Automated prompt A/B optimization loop** — LLM-powered variant generation, iterative scoring, leaderboard
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- **Multi-stage support** for pipeline stages 2-5 with per-stage rubrics and fixtures
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## Shorts Pipeline Modules (M024/S04)
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### caption_generator.py
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Converts Whisper word-level timings to ASS (Advanced SubStation Alpha) subtitles with karaoke highlighting.
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- `generate_ass_captions()` — main entry point, produces ASS file with `\k` tags for word-by-word highlighting
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- Clip-relative timing — offsets word timestamps by clip_start for accurate subtitle sync
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- **Non-blocking** — failures log WARNING, never fail the parent short generation stage
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- 17 unit tests covering time formatting, ASS structure, clip offset math, karaoke duration, empty/whitespace handling, custom styles, negative time clamping
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### card_renderer.py
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ffmpeg-based intro/outro card generation and concatenation pipeline.
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- `render_card()` — builds lavfi command using `color` + `drawtext` filters
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- `render_card_to_file()` — executes ffmpeg to produce card video segment
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- `build_concat_list()` — writes file manifest for ffmpeg concat demuxer
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- `concat_segments()` — runs ffmpeg concat demuxer with `-c copy`
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- `parse_template_config()` — JSONB normalizer with defaults for missing/null fields
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- Cards include silent audio track via `anullsrc` for codec-compatible concat with audio main clips
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- **Non-blocking** — card render failures log WARNING, shorts proceed without intro/outro
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- 28 unit tests
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### shorts_generator.py Updates (M024/S01, S04)
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- `extract_clip()` accepts optional `ass_path` for subtitle burn-in via ffmpeg `-vf ass=` filter
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- `extract_clip_with_template()` — orchestrates intro/main/outro concatenation using card_renderer
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- `stage_generate_shorts` now: loads transcripts for captions, loads creator templates for cards, generates `share_token` on completion via `secrets.token_urlsafe(8)`
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## Key Design Decisions
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- **Sync clients in Celery** (D004): openai.OpenAI, QdrantClient, sync SQLAlchemy. Avoids nested event loop errors.
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Player.md
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Player.md
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- `wavesurfer.js` — waveform rendering (~200KB, loaded only in audio mode)
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- `useMediaSync` hook widened from `HTMLVideoElement` to `HTMLMediaElement` for audio/video polymorphism
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## Key Moment Timeline Pins (M024/S02)
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ChapterMarkers upgraded from thin 3px line ticks to 12px color-coded circle pins.
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### Pin Colors by Content Type
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| Content Type | CSS Custom Property | Color |
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|-------------|-------------------|-------|
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| technique | `--color-pin-technique` | Cyan |
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| settings | `--color-pin-settings` | Amber |
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| reasoning | `--color-pin-reasoning` | Purple |
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| workflow | `--color-pin-workflow` | Green |
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### Active State
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When playback is within a key moment's time range, the corresponding pin scales to 1.3x. `PlayerControls` passes `currentTime` to `ChapterMarkers` for active detection.
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### Touch Targets
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`::before` pseudo-element with `inset:-6px` provides touch-friendly hit areas without enlarging the visual pin.
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### Tooltips
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Enriched: title + formatted time range + content type label.
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## Inline Player on Technique Pages (M024/S02)
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Collapsible video player on `TechniquePage`, positioned between summary and body sections.
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- **Collapse/expand animation** — CSS `grid-template-rows: 0fr/1fr` transition
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- **Multi-source-video selector** — dropdown for technique pages sourced from multiple videos
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- **Chapter pins** — key moments rendered as pin markers on the inline seek bar
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- **Bibliography seek wiring** — time links render as seek buttons (calling `mediaSync.seekTo`) when the inline player is active for the matching video, or as `<Link>` to WatchPage otherwise
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- Uses existing `useMediaSync` hook, `VideoPlayer`, and `PlayerControls` components
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## Embed Player (M024/S03)
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Chrome-free player at `/embed/:videoId` for iframe embedding.
|
||||
|
||||
- **No header/nav/footer** — route registered at top-level `Routes` in `App.tsx` before AppShell catch-all
|
||||
- **Content-type-aware height** — video: 405px, audio-only: 120px
|
||||
- **"Powered by Chrysopedia" branding** — link opens origin in new tab with `rel="noopener"`
|
||||
- **Dark full-viewport layout** — matches existing player theme
|
||||
- **Files:** `EmbedPlayer.tsx`, `EmbedPlayer.module.css`
|
||||
|
||||
## Key Files
|
||||
|
||||
- `frontend/src/pages/WatchPage.tsx` — Page component
|
||||
- `frontend/src/components/VideoPlayer.tsx` — Video element + HLS setup
|
||||
- `frontend/src/components/PlayerControls.tsx` — Play/pause, speed, volume, seek bar
|
||||
- `frontend/src/components/PlayerControls.tsx` — Play/pause, speed, volume, seek bar, currentTime pass-through to ChapterMarkers
|
||||
- `frontend/src/components/ChapterMarkers.tsx` — 12px color-coded circle pins with active state and touch targets (M024/S02)
|
||||
- `frontend/src/components/TranscriptSidebar.tsx` — Synchronized transcript display
|
||||
- `frontend/src/components/AudioWaveform.tsx` — Waveform visualization for audio content (M021/S05)
|
||||
- `frontend/src/pages/EmbedPlayer.tsx` — Chrome-free embed player (M024/S03)
|
||||
- `frontend/src/pages/TechniquePage.tsx` — Inline collapsible player with bibliography seek (M024/S02)
|
||||
- `frontend/src/hooks/useMediaSync.ts` — Shared playback state hook
|
||||
- `backend/routers/videos.py` — Video detail + transcript API
|
||||
|
||||
|
|
|
|||
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