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Merged
seshxn merged 7 commits into from
Oct 30, 2025
Merged

feat: integrate error handling and toast notifications for improved u… #58

seshxn merged 7 commits into from
Oct 30, 2025

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@simandebvu
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@simandebvu simandebvu commented Oct 29, 2025 •
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Description

Implements comprehensive error handling and user feedback system to improve user experience during AI
operations. Adds error boundaries, progress tracking, success states, toast notifications, and retryable
operations with exponential backoff.

Type of Change

  • New feature (non-breaking change which adds functionality)
  • Test addition/modification
  • Performance improvement

Changes Made

Error Handling

  • Error Boundaries: Created WorkspaceErrorBoundary and AIOperationErrorBoundary for graceful error
    recovery
  • Error Reporting: Integrated error logging with contextual information
  • Retry Mechanism: Implemented retry with exponential backoff and max attempt tracking
  • Error State Components: Added ErrorStateWithRetry with user-friendly error messages

Progress Tracking

  • Progress Calculators: Created utility functions for operation, streaming, and multi-format progress
  • Progress Components:
    • ProcessingState - Status indicators with spinner and progress bar
    • MultiFormatProgress - Track multiple concurrent transformations
    • ProgressBar, DetailedProgressBar, StepProgress, CircularProgress variants
    • ModelDownloadProgress - Chrome AI model download tracking
  • Time Estimation: Real-time progress with estimated time remaining
  • Streaming Progress: Live updates during streaming operations

Success States

  • Success Messages: SuccessMessage component with metrics and trend indicators
  • Success Celebrations: SuccessCelebration with animated checkmark and confetti effects
  • Auto-dismiss: Configurable auto-dismiss with countdown

Toast Notifications

  • Toast System: Global toast manager with subscription pattern
  • Toast Types: Success, error, warning, info with consistent styling
  • Toast Features: Auto-dismiss, manual dismiss, action buttons, queue management (max 5)
  • useToast Hook: React hook for easy toast integration

User Feedback Components

  • Help System: HelpButton and HelpPanelProvider context for contextual help
  • Retry Components: RetryButton with loading states and attempt tracking
  • Feedback Utilities: Centralized feedback management with toastManager

Hooks

  • useRetryableOperation: Manages retryable operations with state tracking and toast notifications
  • useToast: Subscribe to and trigger toast notifications
  • useHelpPanel: Manage help panel state across the application

Test Infrastructure

  • 133 New Tests: Comprehensive test coverage for all new features
    • 29 progress calculator unit tests
    • 14 error boundary integration tests
    • 37 progress component integration tests
    • 25 success component integration tests
    • 28 hook integration tests
  • Test Utilities: Enhanced render function with HelpPanelProvider wrapper

Files Added

  • src/components/errors/WorkspaceErrorBoundary.tsx
  • src/components/errors/AIOperationErrorBoundary.tsx
  • src/components/errors/ErrorStateWithRetry.tsx
  • src/components/feedback/Toast.tsx
  • src/components/feedback/ToastContainer.tsx
  • src/components/ui/RetryButton.tsx
  • src/components/ui/SuccessCelebration.tsx
  • src/components/ui/ProcessingState.tsx
  • src/components/ui/MultiFormatProgress.tsx
  • src/lib/feedback/toastManager.ts
  • src/lib/chrome-ai/utils/progressCalculator.ts
  • src/hooks/useRetryableOperation.ts
  • src/hooks/useToast.ts
  • src/hooks/useHelpPanel.ts
  • src/components/help/HelpPanelContext.tsx
  • src/components/help/HelpButton.tsx

Files Modified

  • src/test-utils/render.tsx - Added HelpPanelProvider wrapper
  • src/components/ui/index.ts - Export new UI components
  • Various type definitions for progress tracking

Testing Checklist

  • All existing tests pass locally (npm test) - 1,701 tests passing
  • New tests added for new functionality - 133 new tests
  • Test coverage maintained or improved - Comprehensive integration tests
  • Manual testing completed - All scenarios tested
  • Edge cases considered and tested - Error recovery, network failures, max retries

Code Quality Checklist

  • Code follows project style guidelines (npm run lint passes) - 0 errors, 0 warnings
  • Self-review completed
  • Comments added for complex logic - JSDoc on all public APIs
  • No console.log or debugging code left
  • TypeScript types properly defined - Full type safety
  • Error handling implemented appropriately - Error boundaries at component and operation level

Documentation

  • JSDoc comments added/updated - All components and hooks documented
  • Inline comments for complex logic - Progress calculations, retry logic
  • Usage examples in component docstrings

Performance Impact

  • No significant performance impact
  • Progress tracking uses efficient calculation methods
  • Toast notifications use subscription pattern to avoid unnecessary re-renders
  • Error boundaries isolate errors without affecting parent components
  • All animations use CSS transforms for GPU acceleration
  • Bundle size increase: ~25KB gzipped (progress components, error handling, toast system)

Deployment Notes

No environment variables or deployment configuration changes required. All features work client-side.

Steps to Test

Quick Smoke Test (5 minutes)

  1. Run npm test - Verify all 1,701 tests pass
  2. Run npm run build - Verify build succeeds
  3. Run npm run lint - Verify no errors
  4. Open app in browser - No console errors
  5. Trigger a transformation - Progress indicators work
  6. Trigger an error (disable network) - Error boundary catches it
  7. Click retry - Recovery mechanism works
  8. Complete operation - Success state displays

Detailed Testing

Error Boundaries

  1. Navigate to /workspace
  2. Trigger an operation that fails (or simulate error)
  3. Verify error UI displays with "Workspace Error" or operation-specific error
  4. Click "Retry" - should attempt recovery
  5. Verify retry counter increments
  6. After max retries, verify helpful error message appears

Progress Indicators

  1. Start a content transformation
  2. Verify loading spinner appears during processing
  3. Verify status text updates: "Preparing Chrome AI" → "Processing your content"
  4. Verify progress bar shows percentage
  5. Verify estimated time remaining displays and counts down
  6. Verify metadata shows (input/output lengths, chunks)

Multi-Format Progress

  1. Transform content to multiple formats
  2. Verify overall progress: "X of Y formats"
  3. Verify individual format progress bars
  4. Verify status icons: ○ (pending), ◐ (processing), ● (complete), ✕ (error)
  5. Verify "Currently processing: [format]" shows active format

Success States

  1. Complete a successful operation
  2. Verify green checkmark icon appears
  3. Verify success message displays
  4. Verify metrics show (if provided)
  5. Verify auto-dismiss works (if enabled)

Toast Notifications

  1. Trigger operations to generate toasts
  2. Verify toast types: success (green), error (red), warning (yellow), info (blue)
  3. Verify toasts auto-dismiss after 5 seconds
  4. Verify manual dismiss with × button
  5. Verify max 5 toasts display at once

Retry Mechanism

  1. Trigger an operation that fails
  2. Click "Retry" button
  3. Verify info toast: "Retrying operation (Attempt X of Y)"
  4. Verify retry counter increments
  5. After max attempts, verify retry button disables
  6. Verify final success or error toast

Help System

  1. Click help button (? icon) in header
  2. Verify help panel opens
  3. Verify keyboard navigation (Tab, Escape)
  4. Verify help button works across different pages

Browser Compatibility

Test in:

  • Chrome/Edge (latest) - Primary target
  • Chrome Canary - For Chrome AI features
  • Firefox/Safari - Graceful degradation

Accessibility

  • Tab through all interactive elements
  • Verify focus indicators visible
  • Test with screen reader (error messages announced)
  • Verify ARIA labels present

Performance

  • Open DevTools Performance tab
  • Verify no frame drops during animations
  • Verify no memory leaks
  • Verify bundle size acceptable

Additional Context

Design Decisions

Why Integration Tests over Unit Tests:

  • Focus on user-visible behavior rather than implementation details
  • Tests what users experience, not CSS classes or internal state
  • Higher ROI - covers more with less maintenance
  • Uses React Testing Library for user-centric assertions

Why No E2E Tests:

  • Chrome AI APIs don't exist in CI environments
  • Would require complex, brittle mocking
  • Integration tests provide 80% of E2E coverage at 20% of the cost
  • Faster execution and easier debugging

Error Boundary Architecture:

  • Separate boundaries for workspace and AI operations
  • Operation-specific context for better error messages
  • Max retry enforcement prevents infinite loops
  • Automatic error reporting integration

Progress Tracking Strategy:

  • Pure functions for progress calculations (easy to test)
  • Real-time streaming progress updates
  • Multi-format aggregate progress for concurrent operations
  • Time estimation based on current rate

Toast System Design:

  • Global subscription pattern for React hooks
  • Queue management (max 5 toasts)
  • Auto-dismiss with configurable duration
  • Action buttons for interactive notifications

Impact

User Experience:

  • Clear feedback during long-running operations
  • Graceful error recovery without app crashes
  • Helpful error messages with actionable suggestions
  • Progress visibility reduces perceived wait time
  • Success celebrations improve satisfaction

Developer Experience:

  • Reusable error boundaries
  • Easy-to-use hooks (useRetryableOperation, useToast)
  • Comprehensive test coverage
  • Well-documented components

Performance:

  • Efficient progress calculations
  • Optimized re-renders with subscription pattern
  • GPU-accelerated animations
  • Minimal bundle size impact

Test Coverage

Test Files: 47 passed (47)
Tests: 1,701 passed (1,701)
Duration: ~15-20s

Related Issues

Closes #24 - Error handling and user feedback implementation

@simandebvu
feat: integrate error handling and toast notifications for improved u…
71a380e 
…ser feedback

- Added AIOperationErrorBoundary and WorkspaceErrorBoundary components for specialized error handling in AI operations and workspace interactions.
- Introduced ErrorStateWithRetry component to provide users with retry options during errors.
- Implemented ErrorToastIntegration to display toast notifications for errors, warnings, and info messages.
- Enhanced App component to include ToastContainer and ErrorToastIntegration for global error handling.
- Updated various components to support operation progress tracking and display multi-format progress during processing.
- Added HelpPanel and HelpButton components for user assistance and guidance throughout the application.
@simandebvu simandebvu linked an issue Oct 29, 2025 that may be closed by this pull request
Error Handling and User Feedback #24
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vercel bot commented Oct 29, 2025 •
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Project Deployment Preview Comments Updated (UTC)
synapse Ready Ready Preview Comment Oct 30, 2025 6:15pm

@simandebvu
refactor: clean up error boundary components and enhance testing cove…
62f6bb3 
…rage

- Removed unnecessary ESLint disable comments from AIOperationErrorBoundary and WorkspaceErrorBoundary components.
- Added comprehensive unit tests for error boundaries, ensuring proper error handling and user feedback.
- Updated HelpButton component to remove unused props and improve clarity.
- Enhanced HelpPanelContext with ESLint configuration for better code quality.
- Introduced new test files for ProgressComponents and SuccessComponents, covering various states and functionalities.
- Improved test utilities for rendering components with necessary context providers.
@simandebvu simandebvu self-assigned this Oct 29, 2025
@simandebvu simandebvu added the enhancement New feature or request label Oct 29, 2025
@simandebvu
feat: enhance user feedback with toast notifications for extraction a…
80cc0f0 
…nd transformation processes

- Integrated toast notifications to inform users of successful file extraction, content extraction from URLs, and transformation completions.
- Added error handling notifications for extraction failures and transformation errors to improve user experience.
- Updated the WorkspacePage component to utilize the new toast functionality, providing timely feedback during processing operations.
@simandebvu
feat: enable summary format combination and enhance streaming feedback
4674594 
- Updated the summary format to support combination with other formats, allowing for more flexible content generation.
- Enhanced logging throughout the TextInputPanel, FormatSection, and FormattedOutput components to provide better visibility into streaming processes and results.
- Improved the user interface in FormatSection to indicate loading and waiting states more clearly.
- Refactored validation logic in format handling to accommodate new combination rules, ensuring accurate processing and user feedback.
@simandebvu
feat: enhance ExtractedContent and FormattedOutput components with ne…
a5cd296 
…w features and improved user interaction

- Updated ExtractedContent to include new callbacks for editing text and disabling the process button, enhancing user control.
- Introduced a progress bar with animation effects in the UI, providing visual feedback during processing.
- Enhanced FormattedOutput to allow editing of original text and added a collapsible section for original text reference.
- Improved testing coverage for ProgressBar and other components to ensure reliability and performance.
- Updated WorkspacePage to integrate new functionalities, including handling original text and improved processing feedback.
@simandebvu
fix: improve progress tracking in FormattedOutput and enhance Workspa…
4b56141 
…cePage rendering

- Refactored progress calculation in FormattedOutput to accurately reflect completion and active states based on loading status and results.
- Updated WorkspacePage to streamline className formatting for better readability and maintainability.
- Enhanced loading state handling in WorkspacePage to ensure accurate representation of processing status across formats.
@seshxn seshxn merged commit 9a89cf1 into main Oct 30, 2025
3 of 4 checks passed
@simandebvu simandebvu deleted the feat/24-error-handling-and-user-feedback branch October 31, 2025 12:26
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Error Handling and User Feedback

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