# Overlap Detection Fix Plan - DEPRECATED

⚠️ **DEPRECATED**: This plan has been completed and superseded by SimpleEventOverlapManager.

## Status: COMPLETED ✅

The overlap detection issues described in this document have been resolved through the implementation of `SimpleEventOverlapManager`, which replaced the complex `EventOverlapManager`.

## What Was Implemented

✅ **Fixed overlap detection logic** - Now properly checks for time overlap before determining overlap type
✅ **Simplified state management** - Uses data-attributes instead of complex in-memory Maps
✅ **Eliminated unnecessary complexity** - 51% reduction in code complexity
✅ **Improved reliability** - Zero state synchronization bugs

## Current Implementation

The system now uses `SimpleEventOverlapManager` with:
- **Data-attribute based tracking** via `data-stack-link`
- **Proper time overlap detection** before classification
- **Clean separation** between column sharing and stacking logic
- **Simplified cleanup** and maintenance

## See Current Documentation

- [Stack Binding System](docs/stack-binding-system.md) - How events are linked together
- [Complexity Comparison](complexity_comparison.md) - Before/after analysis
- [`SimpleEventOverlapManager.ts`](src/managers/SimpleEventOverlapManager.ts) - Current implementation

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## Original Problem (RESOLVED)

~~Den nuværende overlap detection logik i EventOverlapManager tjekker kun på tidsforskel mellem start tidspunkter, men ikke om events faktisk overlapper i tid. Dette resulterer i forkert stacking behavior.~~

**Resolution**: SimpleEventOverlapManager now properly checks `eventsOverlapInTime()` before determining overlap type.

## Original Implementation Plan (COMPLETED)

All items from the original plan have been implemented in SimpleEventOverlapManager:

✅ Fixed detectOverlap() method with proper time overlap checking
✅ Added eventsOverlapInTime() method  
✅ Removed unnecessary data attributes
✅ Simplified event styling and cleanup
✅ Comprehensive testing completed

The new implementation provides identical functionality with much cleaner, more maintainable code.