nexus/.planning/phases/42-wallpapers-social-format-conversion-voice/42-01-SUMMARY.md

6.4 KiB

phase plan subsystem tags requires provides affects tech-stack key-files key-decisions patterns-established requirements-completed duration completed
42-wallpapers-social-format-conversion-voice 01 api
file-type
xlsx
csv-parse
pandoc
libreoffice
content-jobs
renderers
typescript
phase provides
40-content-job-infra content_jobs table, renderContent switch stub, async job pattern
WallpaperBundle, AppIconBundle, SocialPostBundle, ConvertBundle type definitions in types.ts
wallpaper, social-post, convert cases in renderContent switch
converter-capabilities.ts startup probe for pandoc/libreoffice with cached result
execFileNoThrow utility for safe binary execution
Stub renderers for wallpaper, social-post, convert (Plans 02-04 replace)
42-02 (wallpaper renderer uses WallpaperBundle type)
42-03 (social renderer uses SocialPostBundle type)
42-04 (convert renderer uses ConvertBundle type, converter-capabilities)
42-05 (voice renderer)
42-06 (UI wiring)
added patterns
file-type@22.0.0
xlsx@0.18.5
csv-parse@6.2.1
execFileNoThrow pattern for safe binary probing (no throw on exit code !=0)
Startup probe with module-level cache for binary availability
created modified
server/src/services/converter-capabilities.ts
server/src/services/renderers/wallpaper-renderer.ts
server/src/services/renderers/social-renderer.ts
server/src/services/renderers/convert-renderer.ts
server/src/utils/execFileNoThrow.ts
server/src/services/renderers/types.ts
server/src/services/content-job-runner.ts
server/package.json
pnpm-lock.yaml
execFileNoThrow utility created as new server/src/utils/ helper — plan referenced it as 'project standard' but it did not exist yet; created as Rule 2 (missing critical functionality)
Stub renderers import and return RenderResult type to satisfy tsc module resolution — Plans 02-04 replace with real implementations
converter-capabilities.ts caches capabilities in module-level variable after first probe
execFileNoThrow: safe binary probe returning status 0|1, never throwing — use for all optional binary checks
Startup probe pattern: probe() called lazily on first get(), result cached in module-level variable
Stub renderer pattern: export async function that throws 'Not implemented', satisfies tsc
CONV-08
3min 2026-04-04

Phase 42 Plan 01: Foundation — Bundle Types, Job Runner Switch, Converter Capabilities

file-type/xlsx/csv-parse installed, four bundle types added to types.ts, wallpaper/social-post/convert cases wired in content-job-runner, and converter-capabilities service probing pandoc/libreoffice via new execFileNoThrow utility

Performance

  • Duration: 3 min
  • Started: 2026-04-04T22:06:42Z
  • Completed: 2026-04-04T22:09:28Z
  • Tasks: 2
  • Files modified: 9 (3 modified, 5 created, 1 lockfile)

Accomplishments

  • Installed file-type@22.0.0, xlsx@0.18.5, csv-parse@6.2.1 in server/ workspace
  • Added WallpaperBundle, AppIconBundle, SocialPostBundle, ConvertBundle interfaces to types.ts; updated ContentBundle union
  • Wired wallpaper, social-post, convert cases in renderContent switch with dynamic imports of stub renderers
  • Created converter-capabilities.ts probing pandoc/libreoffice at startup, caching result for all subsequent calls
  • Created execFileNoThrow utility for safe binary probing without exceptions

Task Commits

Each task was committed atomically:

  1. Task 1: Install dependencies and define bundle types - e809b706 (feat)
  2. Task 2: Wire content-job-runner switch and create converter capabilities service - 3ba09889 (feat)

Plan metadata: (docs commit — see below)

Files Created/Modified

  • server/src/services/renderers/types.ts - Added WallpaperBundle, AppIconBundle, SocialPostBundle, ConvertBundle; updated ContentBundle union
  • server/src/services/content-job-runner.ts - Added wallpaper, social-post, convert cases to renderContent switch
  • server/src/services/converter-capabilities.ts - Startup probe for pandoc/libreoffice, cached capability map
  • server/src/utils/execFileNoThrow.ts - Safe binary execution utility (no throw on non-zero exit)
  • server/src/services/renderers/wallpaper-renderer.ts - Stub renderer (throws "Not implemented")
  • server/src/services/renderers/social-renderer.ts - Stub renderer (throws "Not implemented")
  • server/src/services/renderers/convert-renderer.ts - Stub renderer (throws "Not implemented")
  • server/package.json - Added file-type, xlsx, csv-parse dependencies
  • pnpm-lock.yaml - Updated lockfile

Decisions Made

  • Created execFileNoThrow utility in server/src/utils/ — the plan referenced it as "project standard" but it did not exist. Created it as a Rule 2 auto-fix (missing critical functionality for the converter-capabilities probe).
  • Stub renderers import RenderResult type but use _input naming convention for unused parameter to satisfy TypeScript strict mode.

Deviations from Plan

Auto-fixed Issues

1. [Rule 2 - Missing Critical] Created execFileNoThrow utility

  • Found during: Task 2 (converter capabilities service)
  • Issue: Plan referenced src/utils/execFileNoThrow.ts as "project standard" but the file did not exist in the codebase
  • Fix: Created server/src/utils/execFileNoThrow.ts implementing promisify(execFile) wrapper that returns { stdout, stderr, status: 0|1 } without throwing
  • Files modified: server/src/utils/execFileNoThrow.ts (created)
  • Verification: tsc --noEmit passes with zero errors; converter-capabilities.ts imports and uses it correctly
  • Committed in: 3ba09889 (Task 2 commit)

Total deviations: 1 auto-fixed (1 missing critical) Impact on plan: Auto-fix necessary for the converter-capabilities probe to compile and run. No scope creep.

Issues Encountered

None beyond the missing execFileNoThrow utility (handled above).

User Setup Required

None - no external service configuration required.

Next Phase Readiness

  • All foundation types available for Plans 02-04
  • content-job-runner dispatches wallpaper/social-post/convert jobs to stub renderers
  • Plans 02 (wallpaper), 03 (social), 04 (convert) can now proceed in parallel
  • execFileNoThrow utility available for any future binary-probe needs

Phase: 42-wallpapers-social-format-conversion-voice Completed: 2026-04-04