⚡ Bolt: Optimize HistoryGrouper date comparisons #116
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Replaced O(N) Calendar field operations in the history grouping loop with O(1) timestamp range checks. Pre-calculates 'Today' and 'Yesterday' boundaries once per group call, avoiding repeated `Calendar.getInstance()` and `get()` calls for every history item. This significantly reduces overhead when rendering the history list, especially for long lists where most items are recent.
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💡 What: Optimized
HistoryGrouper.groupto avoidCalendaroperations for every item.🎯 Why:
Calendarfield access and instantiation are expensive. The previous implementation checkedisSameDayfor every item, which allocated calendars and performed field calculations.📊 Impact: Reduces allocations and CPU usage during history list grouping (O(N) integer comparisons vs O(N) calendar ops).
🔬 Measurement: Verified via code analysis and ensuring logic matches original behavior (Today/Yesterday/Older grouping). Unit tests cover the logic.
PR created automatically by Jules for task 5461976596964649923 started by @menny