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Build Log – 2025-12-18

Build Log – 2025-12-18

📅 Daily Log — December 18, 2025

🧠 Context / Focus for Today

Stabilize CI/CD infrastructure, resolve React 19 compatibility issues, set up GitHub Actions for automated testing, and improve Garmin Training API payload handling with comprehensive regression tests. Focus on ensuring reliable builds and preventing regressions in critical Garmin integration code.

✔️ Things I Got Done Today

CI/CD Infrastructure

  • Created GitHub Actions workflow (.github/workflows/test.yml) to run tests and type checking on PRs and pushes to main/master.
  • Updated package.json scripts:
    • Set 'test' to 'vitest run' for CI compatibility
    • Added 'type-check' script using 'tsc --noEmit'
  • Added GitHub Actions status badge to README.md.
  • Resolved all type-check errors for CI/CD compatibility.

Testing Infrastructure

  • Fixed Vitest "No test suite found" error by removing explicit Vitest imports that conflicted with 'globals: true' configuration.
  • Removed React 19 incompatible test libraries:
    • Removed @testing-library/react and @testing-library/jest-dom (require React 18)
    • Updated tests/setup.ts to remove unused jest-dom import
    • Excluded legacy custom test runners from vitest discovery
  • Formally added vitest, jsdom, and testing-library to devDependencies.
  • Removed 'vitest/globals' from tsconfig.json to prevent Vercel build failures.
  • Used explicit vitest imports in all test files.
  • Resolved React 19 peer dependency conflicts with --legacy-peer-deps.
  • Fixed floating point precision issue in pace-zones test.

Garmin Integration Improvements

  • Created wire payload transform (lib/garmin/wire-payload-transform.ts) with comprehensive Garmin Training API V2 payload structure handling.
  • Updated Garmin Training API export to use correct V2 payload structure.
  • Improved Garmin activity sync and error handling for missing columns.
  • Fixed Garmin sport type ID and payload type errors:
    • Imported GARMIN_SPORT_TYPE_IDS in wire-payload-transform.ts to fix Vercel build error
    • Used type casting to resolve 'sportType' property access on GarminWorkoutPayload
    • Fixed matching type errors in wire-payload-transform.test.ts
  • Added critical payload structure tests to ensure segments use 'sport' string instead of 'sportType' object, preventing regressions of the "Please provide sportType for segment" error.
  • Added warning comment to build-training-workout.ts documenting CRITICAL payload requirements for Garmin Training API V2.
  • Ensured all sport types map correctly to Garmin uppercase enums.
  • Created comprehensive regression tests for Garmin Training API payloads.

Code Quality & Type Safety

  • Added vitest/globals to tsconfig.json to support vitest types in tsc.
  • Updated test files to use vitest imports instead of @jest/globals.
  • Added type casting in tests to handle dynamic Garmin payload structures.
  • Fixed type guards in wire-payload-transform.test.ts.
  • Resolved Vercel type definition errors and missing dependencies.

Component & Feature Enhancements

  • Enhanced training load calculations and chart components.
  • Refactored modal management and workout detail views.
  • Added database migration for Garmin scheduled date support.
  • Improved error handling across Garmin integration routes.

Debugging / Fixes

  • Fixed various linter warnings throughout the codebase.
  • Improved test setup and configuration.
  • Resolved build errors related to type definitions and dependencies.

🚧 In Progress

  • Validating GitHub Actions workflow in production environment.
  • Testing Garmin payload transforms with real API calls.
  • Monitoring CI/CD pipeline for stability.

🎯 Targets for Tomorrow

  1. Implement Garmin webhook infrastructure for real-time data sync.
  2. Add user permission management endpoints for Garmin integration.
  3. Create structured storage for Garmin Health API data.
  4. Begin Garmin production API requirements implementation.

🤔 Notes / Observations

  • CI/CD infrastructure is essential for preventing regressions — automated testing catches issues before they reach production.
  • React 19 compatibility required careful dependency management and test library updates.
  • Garmin Training API V2 payload structure is critical — incorrect payloads cause silent failures.
  • Comprehensive regression tests prevent recurring issues with Garmin API integration.
  • Type safety improvements make the codebase more maintainable and catch errors earlier.
  • GitHub Actions provides reliable automated testing without external CI/CD service dependencies.

📈 Momentum Score: 8.5 / 10

Strong foundation-building day. CI/CD infrastructure now in place with automated testing. Critical Garmin payload handling improved with comprehensive tests. React 19 compatibility resolved. Ready for production-focused Garmin integration work tomorrow.