stack/apps
BilalG1 512099ed23
Speed up dummy-project seeding (preview create-project ~15s → ~1.3s) (#1437)
## Summary

The internal `preview/create-project` endpoint was taking ~15s because
`seedDummyProject` created its dummy users one at a time through the
full `usersCrudHandlers.adminCreate` CRUD pipeline (one DB transaction +
config render per user, ~86 users). This reworks the seeding path to use
bulk inserts.

End-to-end, the endpoint's server-side handler time drops from
**~15,100ms → ~1,300ms** (~11× faster).

## Seeding changes (`seed-dummy-data.ts`)

- **`seedDummyUsers` — bulk insert.** Build every row (`ProjectUser`,
`ContactChannel`, `AuthMethod`, `ProjectUserOAuthAccount`,
`OAuthAuthMethod`, default permissions) up front with pre-generated
UUIDs, then insert via one `createMany` per table inside a single
transaction — replacing ~86 sequential `adminCreate` transactions.
Named-user team memberships are bulk-inserted the same way (`TeamMember`
+ `TeamMemberDirectPermission`). Idempotency is preserved with a single
up-front email lookup, so re-runs against an existing project still skip
existing users.
- **Native `randomUUID`.** The seed paths now use `node:crypto`'s
`randomUUID()` instead of stack-shared's `generateUuid()`. The
browser-safe polyfill calls `crypto.getRandomValues` ~31× per UUID (once
per template char, each with a fresh `Uint8Array(1)`); generating
thousands of seed UUIDs made that ~800ms of pure CPU in the
activity-event build alone.
- **`seedBulkSignupsAndActivity`.** Skip the redundant back-date
`UPDATE` for freshly-inserted users (`createMany` already writes correct
`createdAt`/`signedUpAt`), and flush ClickHouse events in larger,
parallel batches.
- **`seedDummyProject`.** Run `seedBulkSignupsAndActivity` concurrently
with the lighter remaining steps, and fold `seedDummyTransactions` into
the emails/activity/replays `Promise.all`.
- Removed the now-unused `syncSeedUserOauthProviders` helper.

The bulk path produces the same rows as the CRUD-handler path (verified
row-count equality during development). Webhooks / soft-limit checks are
intentionally not fired for seed data, consistent with the rest of the
seed.

## Also in this PR — preview-mode 404 fix
(`preview-project-redirect.tsx`)

While testing the above, the dashboard 404'd right after a preview
project was created. In preview mode the `/projects` page renders
`PreviewProjectRedirect`, which `POST`s
`/internal/preview/create-project` and then `router.push()`es to
`/projects/<new-id>` — but it never refreshed the client-side
owned-projects cache, so the `[projectId]` route's `useAdminApp()` read
a stale list, failed to find the just-created project, and called
`notFound()`.

Fixed by refreshing the owned-projects cache before navigating, matching
what the normal create-project flow in `page-client.tsx` already does.
(Pre-existing bug, not caused by the seeding change — but it surfaces
the seeding path, so it's bundled here.)

## Testing

`pnpm typecheck` and `pnpm lint` pass for both backend and dashboard.
The preview endpoint was exercised repeatedly during development (HTTP
200, projects created and populated correctly).

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Performance**
* Much faster bulk user and event seeding via larger, parallelized
batches and optimized backfilling.

* **Refactor**
* Dummy data seeding redesigned to be idempotent, deterministic, and
bulk-oriented; seeding tasks now overlap where safe.

* **Bug Fixes**
* Preview project flow validates client capabilities and refreshes the
local project list to avoid stale navigation.
  * Auto-login guarded to run only once to prevent duplicate sign-ins.

* **UI/UX**
* Walkthrough steps and sidebar behavior improved; walkthrough labels
and search keywords updated.

* **Chore**
* CLI identity command now resolves session authentication more
reliably.

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2026-05-20 10:10:22 -07:00
..
backend Speed up dummy-project seeding (preview create-project ~15s → ~1.3s) (#1437) 2026-05-20 10:10:22 -07:00
dashboard Speed up dummy-project seeding (preview create-project ~15s → ~1.3s) (#1437) 2026-05-20 10:10:22 -07:00
dev-launchpad chore: update package versions 2026-05-19 16:22:10 -07:00
e2e Fix flaky tests and preexisting CI failures (#1443) 2026-05-20 10:00:11 -07:00
hosted-components chore: update package versions 2026-05-19 16:22:10 -07:00
internal-tool Upgrade Next.js 2026-05-19 19:01:00 -07:00
mcp Upgrade Next.js 2026-05-19 19:01:00 -07:00
mock-oauth-server chore: update package versions 2026-05-19 16:22:10 -07:00
oauth-mock-server In-source unit tests (#429) 2025-02-14 11:47:52 -08:00
skills Upgrade Next.js 2026-05-19 19:01:00 -07:00