[jsweep] Clean close_discussion.cjs

[github-actions]

Summary

Cleaned and modernized close_discussion.cjs by removing unnecessary code, optimizing performance, and adding comprehensive test coverage.

Context

This file runs in github-script context with access to github, core, and context globals.

Changes Made

Code Improvements

1. Removed unnecessary intermediate variable: Eliminated const item = message assignment
2. Simplified discussion number extraction: Used ternary operators to combine validation and assignment in one expression
3. Optimized label validation: Used Set instead of array.includes() for O(1) lookup performance (previously O(n))
4. Used modern JavaScript patterns:
   • Nullish coalescing (??) for reason parameter instead of logical OR
   • Object property shorthand for commentUrl return value
5. Eliminated redundant variable: Removed closedDiscussion variable and used discussion.url directly
6. Reduced code duplication: Extracted error message to variable to avoid duplicating strings

Test Coverage

Created comprehensive test suite with 15 test cases covering:

• ✅ Close with explicit discussion number
• ✅ Close from context payload
• ✅ Close with comment
• ✅ Close with reason (RESOLVED, DUPLICATE, OUTDATED, ANSWERED)
• ✅ Missing discussion number errors
• ✅ Invalid discussion number handling
• ✅ Max count limit enforcement
• ✅ Required labels validation (missing and present)
• ✅ Required title prefix validation (missing and present)
• ✅ GraphQL error handling
• ✅ Label pagination (100+ labels)
• ✅ Discussion not found errors
• ✅ Nullish coalescing behavior for undefined/null reason

Validation Checks

All validation checks passed successfully:

• ✅ Formatting: npm run format:cjs - All files formatted correctly
• ✅ Linting: npm run lint:cjs - No linting errors
• ✅ Type checking: npm run typecheck - No type errors
• ✅ Tests: npm run test:js - 15/15 tests passed (100%)

Impact

• Performance: Label validation now O(1) instead of O(n) using Set
• Maintainability: Reduced code verbosity and improved readability
• Quality: Added comprehensive test coverage (previously had no tests)
• Safety: All functionality preserved, type checking passes

AI generated by jsweep - JavaScript Unbloater

• expires on Feb 4, 2026, 3:10 PM UTC