nexus/.planning/phases/44-video-presentations/44-03-SUMMARY.md

5.1 KiB

phase plan subsystem tags requires provides affects tech-stack key-files key-decisions patterns-established requirements-completed duration completed
44-video-presentations 03 ui
remotion
video
presentations
react
sse
progress
content-studio
phase provides
44-video-presentations/44-01 PresentationBundle interface, content_job.progress LiveEventType, presentation case in content-job-runner
phase provides
44-video-presentations/44-02 Server-side presentation renderer emitting SSE progress events
useContentJob extended to read fine-grained data.progress from SSE events
PresentationPanel component with prompt, type selector, real-time progress, MP4 player
ContentStudio Presentations tab wiring PresentationPanel
Any future content studio panels using useContentJob (can use fine-grained progress)
added patterns
Fine-grained SSE progress: data.progress preferred over coarse statusToProgress fallback
mp4Base64 -> blob URL via useMemo with URL.revokeObjectURL cleanup in useEffect
Panel pattern: useContentJob + getContentJobAsset fetch on job.status === done
created modified
ui/src/components/PresentationPanel.tsx
ui/src/hooks/useContentJob.ts
ui/src/pages/ContentStudio.tsx
data.progress preferred over statusToProgress when typeof data.progress === 'number' — backward-compatible for all non-video job types
mp4Base64 blob URL created in useMemo and cleaned up via useEffect return — avoids memory leaks across rerenders
PresentationBundle interface defined locally in PresentationPanel — avoids cross-package import from server types
Fine-grained SSE progress reading: check typeof data.progress === 'number' before falling back to coarse status mapping
Video blob URL lifecycle: useMemo for creation, useEffect cleanup for revocation
PRES-01
PRES-02
PRES-03
PRES-04
5min 2026-04-04

Phase 44 Plan 03: Video Presentations — UI Panel Summary

PresentationPanel with real-time SSE progress bar, MP4 video player + download, and Presentations tab in ContentStudio — backed by fine-grained data.progress in useContentJob

Performance

  • Duration: ~5 min
  • Started: 2026-04-04T23:28:00Z
  • Completed: 2026-04-04T23:33:00Z
  • Tasks: 2
  • Files modified: 3

Accomplishments

  • Extended useContentJob SSE handler to read data.progress (number 0-100) from status events, falling back to coarse statusToProgress for non-video job types
  • Created PresentationPanel (199 lines) with prompt textarea, pitch-deck/demo-video selector, real-time progress bar with percentage text, MP4 video player with blob URL lifecycle management, and download + generate-another actions
  • Added Presentations tab to ContentStudio as the 8th tab, wired to PresentationPanel

Task Commits

  1. Task 1: Extend useContentJob to read fine-grained SSE progress - f088090a (feat)
  2. Task 2: Create PresentationPanel and add Presentations tab to ContentStudio - 1fb26bfb (feat)

Files Created/Modified

  • ui/src/hooks/useContentJob.ts - Added progress?: number to SSE data type; prefer data.progress over coarse statusToProgress
  • ui/src/components/PresentationPanel.tsx - Full panel: prompt, type selector, progress bar, video player, blob URL lifecycle
  • ui/src/pages/ContentStudio.tsx - Import PresentationPanel; add Presentations TabsTrigger and TabsContent after Brand

Decisions Made

  • data.progress check uses typeof data.progress === "number" guard — prevents 0 (falsy) from triggering the fallback incorrectly
  • mp4Base64 blob URL created in useMemo([bundle?.mp4Base64]) and revoked in useEffect return — ensures revocation fires when URL changes or component unmounts
  • PresentationBundle interface defined locally in PresentationPanel.tsx — avoids importing server-side types into the UI package

Deviations from Plan

None - plan executed exactly as written.

Issues Encountered

Pre-existing TypeScript errors in ContentStudio.tsx (themeJob.bundle reference) and PersonalAssistant.tsx (ToastTone type mismatch) exist independently of this plan's changes. No new errors were introduced by this plan. Logged as deferred items (out-of-scope per deviation rule boundary).

User Setup Required

None - no external service configuration required.

Next Phase Readiness

  • All four PRES requirements (PRES-01 through PRES-04) are complete across plans 01-03
  • Phase 44 is complete: Remotion workspace (plan 01), server renderer (plan 02), UI panel (plan 03)
  • ContentStudio now has 8 tabs: Diagrams, Icons, Themes, Wallpapers, Social, Documents, Brand, Presentations

Self-Check: PASSED

  • FOUND: ui/src/components/PresentationPanel.tsx
  • FOUND: ui/src/hooks/useContentJob.ts (modified)
  • FOUND: ui/src/pages/ContentStudio.tsx (modified)
  • FOUND: .planning/phases/44-video-presentations/44-03-SUMMARY.md
  • FOUND commit: f088090a (Task 1)
  • FOUND commit: 1fb26bfb (Task 2)
  • FOUND commit: 60e94e51 (metadata)

Phase: 44-video-presentations Completed: 2026-04-04