refactor: deduplicate event finding logic

[kylezs]

Pull Request

Checklist

Please conduct a thorough self-review before opening the PR.

• I am confident that the code works.
• I have written sufficient tests.
• I have written and tested required migrations.
• I have updated documentation where appropriate.

Summary

Creating the util to reduce the extra duplication that was introduced in #5410

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 19 lines in your changes missing coverage. Please review.

Project coverage is 71%. Comparing base (c22b70a) to head (2385040).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
api/lib/src/lib.rs	0%	19 Missing ⚠️

Additional details and impacted files

@@          Coverage Diff           @@
##            main   #5412    +/-   ##
======================================
- Coverage     71%     71%    -0%     
======================================
  Files        489     489            
  Lines      86667   86526   -141     
  Branches   86667   86526   -141     
======================================
- Hits       61958   61764   -194     
- Misses     21798   21846    +48     
- Partials    2911    2916     +5     

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