CodeNomad/packages
heunghingwan 1d4f77869e
refactor(server): route background-process prompt through the instance client factory (#630)
## Summary

PR #561 introduced `createInstanceClient` so server modules would stop
hand-assembling the OpenCode loopback URL and use the generated SDK
client. Three call sites adopted it; the background-process completion
prompt was the remaining holdout — it still hand-built
`http://127.0.0.1:{port}/session/{id}/prompt_async` with manual
auth/content-type wiring. This PR routes it through the factory +
`client.session.promptAsync`, and consolidates the loopback host
constant.

## Why

- **Consistency** — the last hand-built OpenCode-instance loopback URL
(explicitly flagged in #561 as a future adoption target) now uses the
same version-correct SDK path as the permission replier, yolo metadata,
and the opencode updater.
- **Correctness** — the old call sent no directory at all;
`notify.directory` was stored but never used (dead data). The factory
now scopes the prompt to the session's own directory, which for a
worktree/subdirectory session is the correct project context (a normal
session coincides with the workspace root, so no change there).

## What changed

**Migration** — `background-processes/manager.ts`:
`sendCompletionPrompt` → `createInstanceClient(...)` +
`client.session.promptAsync({sessionID, parts:[{type:"text", text,
synthetic:true}]}, {throwOnError:true})`. Synthetic `<system-message>`
text + `synthetic:true` preserved. Side effect: the call now carries the
factory's 10s loopback timeout (the old fetch had none; the failure is
swallowed + warn-logged, so finalization is unaffected).

**Factory** — `workspaces/instance-client.ts`: new optional `directory`
override in `InstanceClientOptions` (defaults to workspace root); adopts
shared `LOOPBACK_HOST`. Fetch wrapper unchanged from `dev`.

**Consolidation** — new `workspaces/loopback.ts` exporting
`LOOPBACK_HOST = "127.0.0.1"`, adopted by `instance-client.ts`,
`instance-events.ts`, and the workspace manager's health + TCP probes
(`manager.ts`). (Other `127.0.0.1` uses — remote-access proxy, sidecars
— are different concerns, left alone.)

**Tests**
- `workspaces/instance-client.test.ts` (8 cases): null-when-no-port,
loopback host/port targeting, auth header attach/omit, directory scoping
present/absent, explicit directory override, timeout aborts stuck call.
- `background-processes/manager.test.ts` (2 cases, first test for this
manager): drives the real lifecycle (spawn + exit) against a mocked
transport; asserts the `prompt_async` POST
URL/body/authorization/`x-opencode-directory` (= session dir, distinct
from workspace root), and that a failed prompt is swallowed +
warn-logged without aborting finalization.

## Behavior parity

| Aspect | Before | After |
|---|---|---|
| Route / body | `/session/{id}/prompt_async`,
`{parts:[{type,text,synthetic}]}` | **same** (via SDK) |
| Auth header | manual | via factory |
| Directory scoping | none | session's `notify.directory` |
| Loopback timeout | none | 10s (factory default) |
| Error handling | throw on non-2xx → caught + warn-logged |
`throwOnError` → caught + warn-logged (**same**) |

## Testing

10 new tests pass. The background-process integration test is stable
12/12 under `--test-concurrency=4` and is mutation-killed if the
`directory` override or `throwOnError` is removed. Full server suite:
255 pass / 1 fail — the single failure is pre-existing
(`git-clone.test.ts` Chinese-locale git message, confirmed failing
identically on `dev`). Server typecheck clean.

## Risk / rollback

Additive refactor; the factory is production-proven by #561's consumers.
Rollback = revert the single commit.

## Notes

- Per the file-length guideline:
`packages/server/src/background-processes/manager.ts` is ~684 lines
(above the 500 warn threshold, under the 800 limit); this PR shrank it
by ~16 lines net.
2026-07-30 08:33:06 +02:00
..
cloudflare Min server 0.18.0 2026-06-21 20:09:49 +01:00
electron-app fix(restore): simplify persistence and harden cross-platform cleanup (#602) 2026-07-17 22:17:15 +01:00
opencode-plugin Bump version to 0.18.0 2026-06-19 13:55:00 +01:00
server refactor(server): route background-process prompt through the instance client factory (#630) 2026-07-30 08:33:06 +02:00
tauri-app fix(tauri): add native About and Help menus (#596) 2026-07-17 22:17:26 +01:00
ui fix(permissions): ignore stale permission updates (#621) 2026-07-26 17:57:48 +01:00