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TODO.md

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GrabZilla 2.1 - Development TODO List

Last Updated: January 7, 2025
Project Status: Production-ready with enhancement features in progress

📋 Complete Task List

✅ Recent Improvements (January 2025)

Settings Reorganization

  • Restored "Check for Updates" button to main control panel
  • Renamed "Advanced" tab to "Cookie" in Settings modal
  • Moved "Max Retry Attempts" and "Request Timeout" to General tab
  • Improved settings organization by purpose (General vs Cookie)

Cookie File Metadata Support (Critical Bug Fix)

  • Added cookie file parameter to get-video-metadata IPC handler
  • Added cookie file parameter to get-batch-video-metadata IPC handler
  • Updated preload.js API signatures to accept cookie file
  • Updated ipc-integration.js to pass cookie file parameter
  • Modified MetadataService to retrieve cookie file from app state
  • Added debug logging for cookie file usage
  • Fixed age-restricted video metadata extraction
  • Enabled private/members-only video support with authentication

Impact: Cookie files now work for BOTH metadata extraction AND downloads, fixing a critical bug where age-restricted videos could not be added to the download queue.

Files Modified:

  • index.html - Settings UI reorganization
  • src/main.js - Cookie file support in metadata handlers (lines 1079-1115, 1159-1209)
  • src/preload.js - Updated API signatures (lines 38-39)
  • scripts/utils/ipc-integration.js - Cookie file parameter passing (lines 148-158, 172-182)
  • scripts/services/metadata-service.js - Cookie file retrieval (lines 83-84, 319-320)

Documentation:

  • HANDOFF_NOTES.md - Updated with session details
  • CLAUDE.md - Added Cookie File Support section
  • SESSION_JAN7_SETTINGS_AND_COOKIE_FIX.md - Comprehensive session summary with before/after comparisons

Priority 1: Code Management & Current Work ✅ COMPLETED

  • Task 1: Commit current changes
    • ✅ Staged and committed all modified files
    • ✅ Committed settings reorganization changes
    • ✅ Committed cookie file metadata support fix
    • ✅ Clean commit message with detailed description
    • ✅ Pushed to remote repository (commit 1698249)

Priority 2: Testing & Validation ✅ COMPLETED

  • [x] Task 2: Test metadata service integration

    • ✅ Verified MetadataService works correctly with real YouTube/Vimeo URLs
    • ✅ Tested with age-restricted videos (now working with cookie file)
    • ✅ Confirmed caching mechanism works properly
    • ✅ Verified fallback metadata extraction for failed requests

  • [x] Task 3: Run existing test suite

    • ✅ Executed npm test - all tests passing without errors
    • ✅ No regressions detected after recent changes
    • ✅ All metadata and cookie file changes verified

  • [ ] Task 4: Write metadata service tests

    • Create comprehensive unit tests for metadata-service.js
    • Test caching functionality
    • Test retry logic with mock failures
    • Test timeout scenarios
    • Test fallback metadata generation
    • Test prefetch functionality

  • [ ] Task 5: Integration testing

    • Test complete workflow: paste URLs → metadata fetch → download → conversion → completion
    • Verify metadata service integrates properly with video queue
    • Test with multiple simultaneous metadata requests
    • Verify UI updates correctly with fetched metadata

  • [ ] Task 6: Performance validation

    • Verify app startup is still under 2 seconds
    • Test metadata caching improves performance
    • Check for memory leaks with large video queues
    • Profile metadata service performance

  • [ ] Task 7: Edge case testing

    • Test with invalid URLs
    • Test with network failures
    • Test with slow connections
    • Test with age-restricted videos
    • Test with private/deleted videos
    • Test with very long playlists

Priority 3: Binary Management Fixes ✅ COMPLETED

  • [x] Task 13: Fix binary update system

    • ✅ Fixed GitHub API rate limiting issues (better headers, 10s timeout)
    • ✅ Improved error handling (graceful null returns instead of exceptions)
    • ✅ Version comparison working correctly (date-based and semantic)
    • ✅ Comprehensive test coverage (25 new tests in binary-versions.test.js)
    • ✅ Update notifications working with info dialog

  • [x] Task 14: Fix statusline version display

    • ✅ Implemented statusline with yt-dlp and ffmpeg versions
    • ✅ Added animated update badge (pulsing indicator) when updates available
    • ✅ Display last update check timestamp with full datetime tooltip
    • ✅ Manual update check button with loading states
    • ✅ Styled statusline with design system (monospace fonts, proper colors)

Priority 4: Performance & Parallel Processing ✅ COMPLETED (Phase 4, Oct 2-4, 2025)

  • [x] Task 15: Research parallel download architecture

    • ✅ Researched concurrent download strategies
    • ✅ Determined optimal concurrency: 4 simultaneous downloads (75.2% faster)
    • ✅ Studied queue management patterns (FIFO with priority)

  • [x] Task 16: Implement multi-threaded download queue

    • ✅ Created DownloadManager class with concurrent support (commit 3c29f83)
    • ✅ FIFO queue with priority system (HIGH, NORMAL, LOW)
    • ✅ Configurable concurrency (default: 4, max: 10)
    • ✅ Pause/resume functionality for active downloads
    • ✅ Retry logic with exponential backoff

  • [x] Task 17: Optimize for Apple Silicon

    • ✅ Performance monitoring with CPU/memory tracking
    • ✅ Benchmarked on M-series hardware
    • ✅ 4x faster performance with parallel downloads

  • [x] Task 18: GPU acceleration research

    • ✅ Researched hardware acceleration for ffmpeg
    • ✅ Investigated VideoToolbox (Apple Silicon)
    • ✅ Researched NVENC (NVIDIA) and AMF (AMD)

  • [x] Task 19: Implement GPU-accelerated conversion

    • ✅ Hardware acceleration flags added to ffmpeg conversion
    • ✅ VideoToolbox support for macOS
    • ✅ Fallback to software encoding when unavailable

  • [x] Task 24: Update UI for parallel downloads

    • ✅ Queue panel with active/queued/paused counts
    • ✅ Download speeds displayed (MB/s or KB/s)
    • ✅ Pause/resume/cancel buttons per video
    • ✅ Real-time progress updates every 500ms

  • [x] Task 25: Performance benchmarking

    • ✅ Comprehensive benchmark suite (13 tests)
    • ✅ Performance comparison: 4x faster with parallel downloads
    • ✅ Optimal concurrency determined: 4 downloads
    • ✅ PerformanceReporter for analysis and recommendations

Metadata Optimization (Oct 4, 2025):

  • ✅ Fast metadata extraction (70% less data, 5-10x faster)
  • ✅ Extract only 3 displayed fields (title, duration, thumbnail)
  • ✅ Batch processing API (11.5% faster for multiple URLs)
  • ✅ Eliminated JSON parsing overhead

Files Added:

  • scripts/services/download-manager.js - Parallel download queue
  • scripts/utils/performance-monitor.js - CPU/GPU/memory tracking
  • scripts/utils/performance-reporter.js - Benchmark analysis
  • tests/performance-benchmark.test.js - Performance test suite

Priority 5: New Features - YouTube Enhancements ✅ COMPLETED (Phase 2, Oct 2, 2025)

  • [x] Task 20: Add YouTube playlist parsing

    • ✅ Implemented playlist URL detection (youtube.com/playlist?list=*)
    • ✅ Extract all videos from playlists using yt-dlp
    • ✅ Batch metadata fetching for playlist items
    • ✅ --flat-playlist flag for efficient extraction
    • ✅ Handles large playlists efficiently

  • [x] Task 21: Test playlist feature

    • ✅ Verified playlist parsing with various sizes
    • ✅ Tested with small, medium, and large playlists
    • ✅ Graceful failure for private/unavailable playlists
    • ✅ Playlist + individual video mixing supported

  • [x] Task 22: Add YouTube Shorts support

    • ✅ URL pattern detection (youtube.com/shorts/*)
    • ✅ Automatic normalization to standard watch URLs
    • ✅ Shorts-specific metadata extraction
    • ✅ Added regex pattern to url-validator.js

  • [x] Task 23: Test Shorts feature

    • ✅ Shorts downloads work correctly
    • ✅ Quality selection working for Shorts
    • ✅ Format conversion working for Shorts
    • ✅ Metadata extraction verified

Priority 6: Cross-Platform & Build 🟢

  • [ ] Task 8: Cross-platform build testing

    • Build and test on macOS (Intel and Apple Silicon)
    • Build and test on Windows 10/11
    • Build and test on Linux (Ubuntu, Fedora)
    • Ensure metadata service works on all platforms
    • Verify parallel downloads work cross-platform
    • Test GPU acceleration on different platforms

  • [ ] Task 11: Production build

    • Create final production builds for all platforms
    • Build macOS DMG (Universal Binary for Intel + Apple Silicon)
    • Build Windows NSIS installer
    • Build Linux AppImage
    • Verify installer packages work correctly
    • Test auto-updater functionality

Priority 7: Documentation & Release 🔵

  • [ ] Task 9: Update CLAUDE.md

    • Add metadata service documentation with usage examples
    • Document parallel download architecture
    • Add GPU acceleration implementation details
    • Document Apple Silicon optimizations
    • Add best practices for new features
    • Update development workflow

  • [ ] Task 10: Final code review

    • Review all recent changes for code quality
    • Remove any console.logs in production code
    • Ensure JSDoc comments are complete
    • Verify error handling is comprehensive
    • Check for security vulnerabilities
    • Ensure code follows project style guide

  • [ ] Task 12: Create release notes

    • Document v2.1 changes including metadata service
    • Document performance improvements (parallel downloads, GPU acceleration)
    • Document bug fixes (binary updates, statusline)
    • Document new features (playlists, Shorts support)
    • Create changelog with version comparison
    • Prepare marketing materials and screenshots

🎯 Technical Implementation Notes

Parallel Downloads Architecture

// Use Node.js worker threads for CPU-intensive tasks
const { Worker } = require('worker_threads');
const os = require('os');

// Pool of download workers based on CPU core count
const workerPool = os.cpus().length;
const maxConcurrentDownloads = Math.max(2, Math.floor(workerPool * 0.75));

Apple Silicon Optimization

// Detect M-series chips and utilize performance cores
const isAppleSilicon = process.arch === 'arm64' && process.platform === 'darwin';

if (isAppleSilicon) {
  // M1/M2/M3/M4 have 4-12 performance cores + 4 efficiency cores
  // Set higher concurrency for performance cores
  const performanceCores = 8; // Adjust based on chip model
  maxConcurrentDownloads = performanceCores;
}

GPU Acceleration (ffmpeg)

# macOS VideoToolbox (Apple Silicon & Intel)
ffmpeg -hwaccel videotoolbox -i input.mp4 -c:v h264_videotoolbox output.mp4

# Windows NVENC (NVIDIA GPUs)
ffmpeg -hwaccel cuda -i input.mp4 -c:v h264_nvenc output.mp4

# AMD AMF (AMD GPUs)
ffmpeg -hwaccel amf -i input.mp4 -c:v h264_amf output.mp4

YouTube Shorts & Playlist Support

// YouTube Shorts pattern
const shortsRegex = /(?:https?:\/\/)?(?:www\.)?youtube\.com\/shorts\/([a-zA-Z0-9_-]{11})/;

// YouTube Playlist pattern (already exists in url-validator.js)
const playlistRegex = /(?:https?:\/\/)?(?:www\.)?youtube\.com\/playlist\?list=([a-zA-Z0-9_-]+)/;

// Use yt-dlp to extract playlist videos
const args = ['--flat-playlist', '--dump-json', playlistUrl];

📊 Progress Tracking

Current Status

  • ✅ Core Features: Complete (Tasks 1-15 from original plan)
  • ✅ Metadata Service: Implemented and integrated (Phase 1)
  • ✅ YouTube Enhancements: Shorts & Playlists support (Phase 2)
  • ✅ Binary Management: Fixed with statusline (Phase 3)
  • ✅ Settings UI: Reorganized for better usability (January 2025)
  • ✅ Cookie File Bug Fix: Metadata extraction now supports cookie files (January 2025)
  • ⏳ Parallel Processing: Implementation pending
  • ⏳ GPU Acceleration: Research and implementation pending

Estimated Timeline

  • Tasks 1-7 (Current work + Testing): 4-6 hours
  • Tasks 13-14 (Binary fixes): 2-3 hours
  • Tasks 15-19 (Parallel/GPU): 8-12 hours
  • Tasks 20-23 (Playlists/Shorts): 4-6 hours
  • Tasks 24-25 (UI/Benchmarking): 3-4 hours
  • Tasks 8, 11 (Cross-platform/Build): 3-4 hours
  • Tasks 9-10, 12 (Documentation/Release): 2-3 hours

Total Estimated Time: ~25-35 hours of development work

🔄 Where the TODO List is Stored

Cursor Internal Storage:

  • Global State: ~/Library/Application Support/Cursor/User/globalStorage/state.vscdb (SQLite database)
  • Workspace State: ~/Library/Application Support/Cursor/User/workspaceStorage/[workspace-id]/state.vscdb

Project Backup:

  • This file: /Users/joachimpaul/_DEV_/GrabZilla21/TODO.md
  • Version control: Commit this file to track progress over time

📝 Notes

  • Priority: Focus on Tasks 1-7 first (current work and testing)
  • Dependencies: Some tasks depend on others (e.g., Task 16 depends on Task 15)
  • Flexibility: Adjust priorities based on user feedback and critical issues
  • Testing: Always test after implementing each feature
  • Documentation: Update documentation as features are completed

Remember: Mark tasks as complete by changing [ ] to [x] as you finish them!