[Sprint 7d]: Coordinates to Region Mapping

[ajbarba01]

Sprint

[Sprint 7d]: Coordinates to Region Mapping #75

Who worked on this sprint?

Zander
Chiara

Who did what on this sprint?

We both worked together on all features.

Features Implemented

Raycasting Algorithm to check the MA region of a lat/long coordinate
Region field in schools table
Automatic updating of region through upload flow and location editing flow

New files created

src/lib/region-finder.ts

Existing files modified

src/lib/schema.ts
src/app/api/upload/route.ts
src/app/api/schools/route.ts
src/app/api/schools/[name]/route.ts

Acceptance Criteria

1. All schools in the database have associated regions
2. Function addresses edge cases mentioned and any others that are discovered
3. Function is invoked when coordinates for a school change
4. UI matches Figma exactly
5. Code runs locally without errors and builds successfully
6. Merge via PR

Testing: how did you test?

We tested by both editing schools locations and by deleting and re-uploading school data to ensure that both routes result in the correct regions for schools.

Features Not Implemented/Incomplete

N/A

Bugs Discovered

N/A

Screenshots:

N/A -- all backend

Tag Dan and Shayne

@danglorioso @shaynesidman

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Project	Deployment	Actions	Updated (UTC)
mhd	Ready	Preview, Comment	Mar 25, 2026 7:11pm