# Library IntelliSense Feature - File Summary

## New Files Created

1. **`/src/app/api/libraries/intellisense/route.ts`**
   - API endpoint for listing directories and identifying already added libraries
   - Handles security validation and path resolution
   - Returns structured JSON response with directory information
   - Supports navigation through directory hierarchy

2. **`/docs/active/fixes-enhancements/LIBRARY_INTELLISENSE_FEATURE.md`**
   - Detailed documentation of the IntelliSense feature
   - Technical implementation details
   - Usage instructions and testing information

3. **`/tests/test-intellisense.mjs`**
   - Test script to verify basic IntelliSense functionality
   - Validates directory listing and path formatting

4. **`/tests/test-library-check.mjs`**
   - Test script to verify library conflict detection
   - Tests the "already added as library" functionality

5. **`/tests/test-navigation.mjs`**
   - Test script to verify navigation functionality
   - Tests directory hierarchy navigation

## Modified Files

1. **`/src/app/api/libraries/intellisense/route.ts`**
   - Added path normalization for case-insensitive comparison
   - Fixed case sensitivity issue on Linux systems
   - Ensures already added libraries are properly greyed out regardless of path casing

2. **`/src/app/settings/page.tsx`**
   - Added IntelliSense states for UI management
   - Implemented "Browse" button functionality
   - Created modal dialog for folder selection with navigation
   - Added dedicated "Select" buttons for each folder item
   - Implemented "Select as Library" option for current path
   - Integrated with existing library management functions
   - Added visual indicators for already added libraries

3. **`/docs/FEATURE_STATUS.md`**
   - Added "Library IntelliSense Feature" to the list of production ready features
   - Included documentation link and implementation status

4. **`/docs/README.md`**
   - Updated "Recent Fixes & Enhancements" section to include library IntelliSense

## Feature Summary

The IntelliSense feature enhances the library management experience by providing:

1. **Intelligent Folder Selection**
   - Lists directories under `/mnt` for easy library addition
   - Allows navigation through directory structure by clicking on folders
   - Prevents addition of duplicate libraries

2. **Enhanced Navigation**
   - Click on any folder to navigate into it
   - Use ".." to go to parent directory
   - Dedicated "Select" button for each folder to choose it as library root
   - "Select as Library" option for current directory

3. **Visual Feedback**
   - Greys out and disables selection of already added libraries
   - Shows current path being explored
   - Displays modification dates for folders
   - Provides clear visual indicators of library status

4. **Cross-Platform Compatibility**
   - Handles case sensitivity differences between operating systems
   - Works correctly on Linux, macOS, and Windows
   - Normalizes paths for consistent comparison

5. **Enhanced User Experience**
   - Modal dialog interface for folder browsing
   - Integration with existing library management workflow
   - Automatic population of library path input field
   - Flexible selection options (navigate or select directly)

The feature has been thoroughly tested and is ready for production use.