## Context
PR here mainly breaks up the files under `ConnectSheet` to separate the
functional logic so that we can write unit tests.
No behavior changes intended beyond the bug fixes
## Changes involved
- **Test organization:** moved all root-level `ConnectSheet` test files
into `ConnectSheet/__tests__/` for consistency with other parts of the
codebase that use this convention.
- **Bug fix:** read replica label had a stray `}` / missing `)`,
rendering as e.g. `Read Replica (us-east-1 - abc123})` instead of `Read
Replica (us-east-1 - abc123)`.
- **`ConnectSheet.tsx`:** extracted the "hydrate sheet state on open"
`useEffect` logic (mode/field/URL param resolution from URL vs.
localStorage) into a new `ConnectSheet.utils.ts`, with unit tests
- **`useConnectServerEnv.ts`:** fixed two race conditions in the secret
reveal/hide flow:
- `toggle()` and `getValue()` could each fire a separate reveal request
if triggered close together — now deduped to share one in-flight
request.
- `getValue()` could hide a secret that had just been explicitly
revealed by a concurrent `toggle()`, due to reading a stale closure
value — now reads the live state via `useLatest`.
- Also stopped swallowing the original error on reveal failure (now
attached via `cause`).
- Added tests for the above, plus the 10s auto-hide timer (previously
untested).
- **`ConnectStepsSection.tsx`:** extracted `resolveContentPath` and the
three inline "show notice" booleans (IPv4 addon, session pooler,
self-hosted MCP) into `ConnectStepsSection.utils.ts`, matching the
existing pattern for the Data API notice. Added unit tests for all of
them.
## To test
- [ ] Just a basic smoke test of the Connect sheet should do
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Improved connect setup hydration so saved preferences and URL values
are applied more consistently when opening the sheet, including
automatic URL backfilling where needed.
* Refreshed connection guidance notices (IPv4 add-on, session pooler,
and self-hosted MCP) with more consistent logic.
* **Bug Fixes**
* Fixed secret reveal behavior to keep concurrent reveal actions in
sync, handle failures more safely, and ensure auto-hide works reliably.
* Corrected the read-replica option label formatting.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## What kind of change does this PR introduce?
Feature. Resolves DEPR-599.
## What is the current behavior?
When the Data API is disabled (PostgREST has no exposed schemas), the
Connect sheet still shows client-library setup steps for Framework and
MCP modes without indicating that database queries will fail.
## What is the new behavior?
When database access via the Connect instructions requires PostgREST, an
inline warning appears above the steps (setup instructions remain
visible):
- **Framework**: warns when Data API is off; install, env vars, and
auth/SSR setup still work
- **MCP**: warns only when Database tools apply (selected explicitly, or
by default when no feature filter is set)
The warning fails open if PostgREST config cannot be loaded, and links
to Data API settings via an "Enable Data API" CTA.
| After |
| --- |
| <img width="1664" height="718" alt="CleanShot 2026-07-02 at 21 29
16@2x"
src="https://github.com/user-attachments/assets/80d21927-c4dd-4158-8946-bf648b95e451"
/>|
## Additional context
- Gating logic lives in `ConnectStepsSection.utils.ts` with unit tests
- Out of scope: warning when Data API is on but zero tables/schemas are
exposed
- Coexists with the upcoming warehouse branch's catalog warning — that
lives in a separate `WarehouseCatalogPanel` for `catalog` mode only
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Connection setup now checks Data API enablement and conditionally
shows a “Data API disabled” warning, including an action to open Data
API settings.
* **Bug Fixes**
* Warning logic now more accurately reflects the selected connection
mode and chosen feature/tool selections.
* **Tests**
* Added a focused test suite covering the Data API configuration
decision rules and when the warning should appear.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->