- Move OnlyOffice conversion out of worker subprocesses into async event loop using httpx.AsyncClient with shared client and clean shutdown hook - Add OOConversionManager with in-flight deduplication (asyncio.Future) and configurable concurrency limit (OO_MAX_CONCURRENT=2) - Add 10s total timeout for office previews via asyncio.wait_for - Return 503 when OnlyOffice is unavailable, 504 on timeout - Remove office handling from worker dispatch(); workers now only do images, video, and PDFs - Replace PNG tempfile bridge with framed binary input protocol on worker stdin: (json_size)(data_size)(json)(raw_data) - Add process_image_buffer() for in-memory AVIF conversion via pyvips - Add office_previews to WS server message, cached every 30s from OO availability check - Frontend gates only office document previews on office_previews flag; images, video, PDFs remain unconditional - Change default OnlyOffice port from 8080 to 8988
Cista Vue Frontend
The frontend is a Single-Page App implemented with Vue 3. Development uses the Vite server together with the main Python backend, but in production the latter also serves the prebuilt frontend files.
Recommended IDE Setup
VSCode + Volar (and disable Vetur) + TypeScript Vue Plugin (Volar).
Type Support for .vue Imports in TS
TypeScript cannot handle type information for .vue imports by default, so we replace the tsc CLI with vue-tsc for type checking. In editors, we need TypeScript Vue Plugin (Volar) to make the TypeScript language service aware of .vue types.
If the standalone TypeScript plugin doesn't feel fast enough to you, Volar has also implemented a Take Over Mode that is more performant. You can enable it by the following steps:
- Disable the built-in TypeScript Extension
- Run
Extensions: Show Built-in Extensionsfrom VSCode's command palette - Find
TypeScript and JavaScript Language Features, right click and selectDisable (Workspace)
- Run
- Reload the VSCode window by running
Developer: Reload Windowfrom the command palette.
Hot-Reload for Development
Run the backend
uv sync --dev
uv run cista --dev -l :8000
And the Vite server (in another terminal)
cd frontend
bun install
bun run dev
Browse to Vite, which will proxy API requests to port 8000. Both servers live reload changes.
Type-Check, Compile and Minify for Production
This is also called by uv build during Python packaging:
bun run build