# Refactoring Summary: Troostwijk Auction Monitor

## Overview
This project has been refactored to focus on **image processing and monitoring**, removing all auction/lot scraping functionality which is now handled by the external `ARCHITECTURE-TROOSTWIJK-SCRAPER` process.

## Architecture Changes

### Removed Components
- ❌ **TroostwijkScraper.java** - Removed (replaced by TroostwijkMonitor)
- ❌ Auction discovery and scraping logic
- ❌ Lot scraping via Playwright/JSoup
- ❌ CacheDatabase (can be removed if not used elsewhere)

### New/Updated Components

#### New Classes
- ✅ **TroostwijkMonitor.java** - Monitors bids and coordinates services (no scraping)
- ✅ **ImageProcessingService.java** - Downloads images and runs object detection
- ✅ **Console.java** - Simple output utility (renamed from IO to avoid Java 25 conflict)

#### Modernized Classes
- ✅ **AuctionInfo** - Converted to immutable `record`
- ✅ **Lot** - Converted to immutable `record` with `minutesUntilClose()` method
- ✅ **DatabaseService.java** - Uses modern Java features:
  - Text blocks (`"""`) for SQL
  - Record accessor methods
  - Added `getImagesForLot()` method
  - Added `processed_at` timestamp to images table
  - Nested `ImageRecord` record

#### Preserved Components
- ✅ **NotificationService.java** - Desktop/email notifications
- ✅ **ObjectDetectionService.java** - YOLO-based object detection
- ✅ **Main.java** - Updated to use new architecture

## Database Schema

### Populated by External Scraper
- `auctions` table - Auction metadata
- `lots` table - Lot details with bidding info

### Populated by This Process
- `images` table - Downloaded images with:
  - `file_path` - Local storage path
  - `labels` - Detected objects (comma-separated)
  - `processed_at` - Processing timestamp

## Modern Java Features Used

- **Records** - Immutable data carriers (AuctionInfo, Lot, ImageRecord)
- **Text Blocks** - Multi-line SQL queries
- **var** - Type inference throughout
- **Switch expressions** - Where applicable
- **Pattern matching** - Ready for future enhancements

## Responsibilities

### This Project
1. ✅ Image downloading from URLs in database
2. ✅ Object detection using YOLO/OpenCV
3. ✅ Bid monitoring and change detection
4. ✅ Desktop and email notifications
5. ✅ Data enrichment with image analysis

### External ARCHITECTURE-TROOSTWIJK-SCRAPER
1. 🔄 Discover auctions from Troostwijk website
2. 🔄 Scrape lot details via API
3. 🔄 Populate `auctions` and `lots` tables
4. 🔄 Share database with this process

## Usage

### Running the Monitor
```bash
# With environment variables
export DATABASE_FILE=troostwijk.db
export NOTIFICATION_CONFIG=desktop  # or smtp:user:pass:email

java -jar troostwijk-monitor.jar
```

### Expected Output
```
=== Troostwijk Auction Monitor ===

✓ OpenCV loaded
Initializing monitor...

📊 Current Database State:
  Total lots in database: 42
  Total images processed: 0

[1/2] Processing images...
Processing pending images...

[2/2] Starting bid monitoring...
✓ Monitoring service started

✓ Monitor is running. Press Ctrl+C to stop.

NOTE: This process expects auction/lot data from the external scraper.
      Make sure ARCHITECTURE-TROOSTWIJK-SCRAPER is running and populating the database.
```

## Migration Notes

1. The project now compiles successfully with Java 25
2. All scraping logic removed - rely on external scraper
3. Shared database architecture for inter-process communication
4. Clean separation of concerns
5. Modern, maintainable codebase with records and text blocks

## Next Steps

- Remove `CacheDatabase.java` if not needed
- Consider adding API endpoint for external scraper to trigger image processing
- Add metrics/logging framework
- Consider message queue (e.g., Redis, RabbitMQ) for better inter-process communication