This project was developed during my learning journey with Ratatui, building upon the original JSON Editor tutorial from the Ratatui documentation with more useful features to be used as a reference.

• URL Fetching: Fetch JSON data from URLs and merge it into the current dataset (how to use async tasks)
• File Operations: Save your JSON data to a file
• Scrollable Interface: Navigate through large datasets with keyboard scrolling
• Temporary Notifications: Non-intrusive status messages that appear and disappear automatically
• Keyboard-Driven Interface: Full keyboard control for all operations

• Core Module (src/core/)

  • Tasks: Contains all async operations (URL fetching, file writing)
  • Errors: Centralized error handling with custom error types
  • Types: Shared type definitions used across the application

• App Module (src/app/)

  • State Management: Centralized application state
  • Enums: All application-specific enumerations
  • Handlers: UI-specific event handlers separated from core logic

• UI Module (src/ui/)

  • Components: Reusable UI components
  • Screens: Different application screens
  • Notification System: Temporary notification display

• Notifications appear in the top-right corner
• Different types (Success, Error, Info) with distinct colors
• Auto-dismiss after a configurable duration
• Non-blocking UI updates

• Arrow keys for line-by-line navigation
• Page Up/Down for larger jumps
• Home/End for quick navigation
• Visual highlighting of the selected item
• Automatic scrolling to show newly added items

• Custom error types with detailed information
• Proper error propagation through the async chain
• User-friendly error messages through notifications

src/
├── app/
│   ├── enums.rs      # Application-specific enumerations
│   ├── handlers.rs   # UI event handlers
│   ├── mod.rs        # App state and core logic
│   ├── notif.rs      # Notification  
│   └── types.rs      # Type definitions
├── core/
│   ├── errors.rs     # Error handling
│   ├── mod.rs        # Core module exports
│   └── tasks.rs      # Async operations
├── ui/
│   ├── components/   # Reusable UI components
│   ├── screens/      # Application screens
│   └── mod.rs        # UI module exports
└── main.rs           # Application entry point

• The Ratatui team for the excellent TUI framework
• The original JSON Editor tutorial for providing the foundation