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Build Log — January 20, 2026

Build Log — January 20, 2026

Context / Focus for Today

Focus on improving user experience in settings with goal race event selection, better error messaging, and comprehensive Stripe payment integration testing.

Things I Got Done Today

Goal Race Event Selector

Event-Based Goal Selection

  • Added event selector for goal race in settings (148 lines):
    • Users can now select goal race from saved events instead of manual date entry
    • Auto-populates training goal based on race type (marathon, half marathon, etc.)
    • Falls back to manual date input if user has no saved events
    • Seamless integration with existing settings workflow
  • Improved user experience:
    • Reduces manual data entry
    • Ensures consistency between events and training goals
    • Intuitive dropdown selection

Error Message Improvements

Settings Page Error Handling

  • Enhanced settings page error messages (72 lines total):
    • Shows specific error messages instead of generic "Failed to save settings"
    • Session expired errors now display clear message
    • Database errors include detailed information
    • Better user feedback for troubleshooting

Stripe Error Handling

  • Improved Stripe customer creation error messages:
    • Invalid API key errors clearly identified
    • Connection errors provide actionable feedback
    • Specific Stripe errors passed through to user
    • Better debugging information

Migration Fix

  • Fixed missing bike_power_zones column error:
    • Applied pending database migration
    • Resolves settings save failures for new users

Stripe Integration Testing

Comprehensive Test Suite

  • Added 56 comprehensive Stripe integration tests (2,519 lines):
    • lib/stripe/index.ts tests (478 lines):
      • Customer management
      • Subscription status checking
    • Webhook handler tests (576 lines):
      • Checkout session completed
      • Subscription CRUD operations
      • Payment failure handling
    • Checkout route tests (629 lines):
      • Session creation
      • Billing cycle handling
      • Authentication requirements
    • Portal route tests (465 lines):
      • Billing portal session creation
    • useSubscription hook tests (371 lines):
      • All subscription states
      • Trial period handling
  • Complete coverage of payment infrastructure:
    • Customer lifecycle
    • Subscription management
    • Error scenarios
    • Edge cases

In Progress

  • Stripe payment integration (testing complete, monitoring in production)
  • Settings improvements (error handling complete, additional UX planned)
  • Event-based goal selection (core complete, additional validations planned)

Targets for Tomorrow

  1. Monitor Stripe integration — verify tests passing in CI
  2. User feedback — gather feedback on event selector UX
  3. Error handling — extend improved error messages to other areas
  4. Documentation — update Stripe integration docs with test coverage

Notes / Observations

  • Goal race event selector significantly improves settings UX by reducing manual entry
  • Specific error messages make debugging much easier for users and developers
  • Stripe test coverage (56 tests, 2,519 lines) provides confidence for payment handling
  • Database migration fix resolves edge case for new user onboarding
  • All changes maintain backward compatibility
  • Test-driven approach ensures payment reliability
  • Settings improvements focus on user experience and actionable feedback

Momentum Score: 8 / 10

Solid day focused on quality improvements and testing infrastructure. Goal race event selector enhances user experience by connecting events to training goals. Improved error messaging across settings and Stripe integration provides better feedback. Comprehensive Stripe test suite (56 tests) ensures payment reliability and covers all major scenarios. Migration fix resolves onboarding issue. Strong focus on code quality, test coverage, and user experience improvements.