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Email Agent Development Checkpoint

Overview

We've successfully built a functional email client application using Electron, React, and TypeScript with Gmail integration. The app features a three-pane layout similar to traditional email clients.

Key Features Implemented

1. Email UI Components

  • Three-pane layout: Folder list, email list, and email detail view
  • Folder List: Shows inbox, sent, drafts, trash with unread counts
  • Email List: Displays emails with sender, subject, preview, date, and attachments
  • Email Detail: Full email view with clean/original toggle

2. Gmail Integration

  • OAuth2 authentication flow with secure token storage
  • Email fetching with attachments support
  • Automatic polling every 5 minutes
  • Email manager service for API operations

3. State Management

  • Zustand store for centralized email state
  • Folder filtering and email selection
  • Star/unstar and trash functionality
  • Search across all emails

4. Email Rendering

  • Clean mode: Plain text view with proper formatting
  • Original mode: Full HTML rendering via secure webview
  • Email sanitization for security
  • Proper handling of attachments categorized by type

5. UI/UX Enhancements

  • Dark mode support
  • Responsive design with overflow handling
  • Settings dialog for API key management
  • Sync status indicator
  • Keyboard shortcuts (Cmd+K for search)

6. Technical Features

  • TypeScript throughout
  • Tailwind CSS with shadcn/ui components
  • Secure IPC communication between main and renderer
  • Environment variable support for API keys
  • Local database integration (RxDB) for offline support

Recent Fixes

  1. Overflow Issue: Fixed email content pushing layout off-screen
  2. Webview Implementation: Added secure iframe rendering for original HTML emails
  3. Security: Implemented content sanitization and sandboxing

Project Structure

EmailAgent/
├── src/
│   ├── main/           # Electron main process
│   │   ├── auth/       # Gmail OAuth handling
│   │   ├── db/         # Database integration
│   │   └── email/      # Email service
│   ├── renderer/       # React application
│   │   ├── components/ # UI components
│   │   ├── store/      # Zustand state
│   │   └── utils/      # Helper functions
│   └── preload/        # Preload scripts
├── .env                # API keys (not committed)
└── package.json        # Dependencies

Current Status

  • ✅ Basic email client functionality complete
  • ✅ Gmail integration working
  • ✅ UI responsive and functional
  • ✅ Email rendering with security
  • ✅ Offline database support
  • ✅ Settings and configuration

Next Steps Potential

  • Compose and send emails
  • Reply/Reply All/Forward functionality
  • Attachment downloads
  • Multiple account support
  • Better search with filters
  • Email notifications
  • Drafts auto-save
  • Keyboard navigation
  • Email threading
  • Labels/folders management

Environment Setup

Required in .env:

GMAIL_CLIENT_ID=your_client_id
GMAIL_CLIENT_SECRET=your_client_secret
GMAIL_REDIRECT_URI=http://localhost:3000/auth/callback

Running the App

npm install
npm run dev

Recent Commits

  • Fix email detail overflow issue
  • Add webview rendering for original email display
  • Add email sanitization with clean/original view toggle
  • Add sync status indicator
  • Initial email UI implementation

Last updated: August 18, 2025