fix: Availability reset to default hours on day toggle

[Manas-Kenge]

What does this PR do?

• Fixes Availability resets to 9–5 when toggling a day off and on #26409
• Fixes CAL-7011

Visual Demo

Video Demo (if applicable):

• Before

Screencast.from.2026-01-03.14-11-19.mp4

• After

Screencast.from.2026-01-03.14-06-12.mp4

Mandatory Tasks (DO NOT REMOVE)

• I have self-reviewed the code (A decent size PR without self-review might be rejected).
• I have updated the developer docs in /docs if this PR makes changes that would require a documentation change.
• I confirm automated tests are in place that prove my fix is effective or that my feature works.

---

Summary by cubic

Preserves a day’s custom availability when toggling off and back on, so hours no longer reset to default. Addresses CAL-7011 and #26409.

• Bug Fixes
  • Save current time slots per day on toggle off, using a per-day map.
  • Restore saved slots on toggle on; fall back to DEFAULT_DAY_RANGE if none exist.

^{Written for commit 595e53d. Summary will update on new commits.}

[vercel]

@Manas-Kenge is attempting to deploy a commit to the cal Team on Vercel.

A member of the Team first needs to authorize it.

[cubic-dev-ai]

1 issue found across 1 file

Prompt for AI agents (all issues)

Check if these issues are valid — if so, understand the root cause of each and fix them.


<file name="packages/features/schedules/components/Schedule.tsx">

<violation number="1" location="packages/features/schedules/components/Schedule.tsx:57">
P1: Module-level `Map` will share preserved time slots across all component instances, causing data corruption when multiple schedules are edited. This should be scoped per form/schedule instance using React Context or a ref passed from the parent `ScheduleComponent`.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.}

[cubic-dev-ai]

P1: Module-level Map will share preserved time slots across all component instances, causing data corruption when multiple schedules are edited. This should be scoped per form/schedule instance using React Context or a ref passed from the parent ScheduleComponent.

Prompt for AI agents

Check if this issue is valid — if so, understand the root cause and fix it. At packages/features/schedules/components/Schedule.tsx, line 57:

<comment>Module-level `Map` will share preserved time slots across all component instances, causing data corruption when multiple schedules are edited. This should be scoped per form/schedule instance using React Context or a ref passed from the parent `ScheduleComponent`.</comment>

<file context>
@@ -53,6 +53,9 @@ export type FieldPathByValue&lt;TFieldValues extends FieldValues, TValue&gt; = {
 }[FieldPath&lt;TFieldValues&gt;];
 
+// Store preserved time slots for each day to restore when toggling back on
+const preservedTimeSlotsRef = new Map&lt;string, TimeRange[]&gt;();
+
 export const ScheduleDay = &lt;TFieldValues extends FieldValues&gt;({
</file context>

[zaidkhan-div]

can you please understand me how you are working you opened the issue and made a PR @Manas-Kenge ?

[dhairyashiil]

Address cubic's comment

[dhairyashiil]

can you please understand me how you are working you opened the issue and made a PR @Manas-Kenge ?

If you come across any bugs, you can open an issue and feel free to start working on it.
Similarly, if you want to add a new feature, open an issue using the feature template.