294 alex graduate guest mode

[yeejord]

Pull Request

This PR creates a 'guest-plan' in local storage to store a single plan for someone who is not signed into Search. When creating a new plan, the guest-plan will be updated with the most recent plan. This is done using useLocalStorage that has been migrated from the Graduate codebase and updating the handleCreatePlan of the newPlanModal. It does not cover updating the plan as edits are made.

dennis todo : need to integrate /guest page to display the plan from localstorage later in future ticket

Closes PR #294

Type of Change

Please tick the boxes that best match your changes.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update
• This change requires a PCP (ie changes in deps, database, infrastructure, or package exports)

Testing

Please describe how you tested this PR (both manually and with tests) Provide instructions so we can reproduce.

• To test first sign out if you are logged in to Search. Pull up 'Storage' in dev tools and view 'LocalStorage'. Create a new plan and see it show up under 'guest-plan' after clicking Create. If you create a new plan that new plan will replace the previous one (we only want a guest to be able to have 1 plan).

Checklist

• I have performed a self-review of my own code
• I have commented my code where needed
• I have made corresponding changes to the documentation
• I have run a build for the entire monorepo
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• All commits are atomic and my branch is cleaned (no WIP commits)

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Project	Deployment	Actions	Updated (UTC)
searchneu	Error		Apr 5, 2026 10:32pm

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Project	Deployment	Actions	Updated (UTC)
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[Copilot]

Pull request overview

Introduces a reusable localStorage React hook and uses it in the graduate “New Plan” modal to persist a newly created plan locally for unauthenticated (guest) users.

Changes:

• Added useLocalStorage hook for SSR-safe localStorage read/write.
• Updated NewPlanModal to detect auth session and store a “guest plan” locally when no user session exists.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 4 comments.

File	Description
apps/searchneu/lib/graduate/useLocalStorage.ts	Adds a generic hook for reading/writing JSON-serialized values in localStorage.
apps/searchneu/components/graduate/modal/NewPlanModal.tsx	Uses session state to decide between server plan creation vs. local guest plan persistence.

Comments suppressed due to low confidence (1)

apps/searchneu/components/graduate/modal/NewPlanModal.tsx:62

• authClient.useSession() can return data: undefined while the session is still loading. As written, !session?.user will treat “loading” as “guest”, so a signed-in user who clicks quickly could end up storing the plan in localStorage instead of creating it server-side. Consider also reading isPending from useSession() and blocking submission (or showing a spinner) until session resolution, and only treating session === null as unauthenticated.

  const { data: session } = authClient.useSession();

  //majors
  const { data: supportedMajorsData, error: majorsError } =
    useSupportedMajors();

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[denniwang]

lgtm

[denniwang]

lgtm