# 57. Implement Error Handling

meta:
  id: podcast-tui-app-57
  feature: podcast-tui-app
  priority: P1
  depends_on: [56]
  tags: [error-handling, debugging, solidjs]

objective:
- Implement error handling throughout the app
- Handle API errors
- Handle file errors
- Handle user input errors
- Display error messages

deliverables:
- `src/utils/error-handler.ts` with error handling
- `src/components/ErrorDisplay.tsx` with error UI
- `src/components/LoadingSpinner.tsx` with loading UI

steps:
- Create `src/utils/error-handler.ts`:
  - `handleError(error: Error, context: string): void`
  - Log errors to console
  - Display user-friendly error messages
  - Handle different error types
- Create `src/components/ErrorDisplay.tsx`:
  - Display error message
  - Error type indicator
  - Retry button
  - Error details (expandable)
- Create `src/components/LoadingSpinner.tsx`:
  - Loading indicator
  - Loading message
  - Different loading states

tests:
- Unit: Test error handler
- Unit: Test error display
- Integration: Test error handling flow

acceptance_criteria:
- Errors are caught and handled
- Error messages display correctly
- Retry functionality works
- User sees helpful error messages

validation:
- Run application and trigger errors
- Test API errors
- Test file errors
- Test input errors
- Verify error messages display

notes:
- Handle network errors (API calls)
- Handle file errors (import/export)
- Handle validation errors (inputs)
- Handle parsing errors (RSS feeds)
- Display errors in user-friendly way
- Add error logging for debugging
- Consider adding Sentry for production