- App.tsx: Update top50Ranking2025 to calculate ranks based on active country filters
- App.tsx: Add split Pan-EU vs UK ranking when no filters are active
- WeeklyGrid.tsx: Add support for multiple ranking badges (EU/UK)
- WeeklyGrid.tsx: Enhance Top50Badge with labels and color themes
- WeeklyGrid.tsx: Update sorting and filtering logic for new ranking structure
- New toggle button in Weekly Sales toolbar to show only Top 50 products
- Button displays with trophy icon and golden gradient when active
- Resets pagination when toggled
- Works in combination with other filters (search, growth)
- Calculate static Top 50 ranking based on 2025 Sell Out (independent of filters)
- Display trophy badge with position number for Top 50 ASINs
- Badge shows 🏆 followed by rank (1-50)
- Ranking stays static regardless of date/country filters applied
- Pre-computed ranking based on cumulative 2025 data
- Limit visible weeks to 8 (configurable MAX_VISIBLE_WEEKS)
- Add debounced search (300ms delay) to reduce re-renders
- Calculate weekTotals in single pass O(rows) instead of O(weeks × rows)
- Memoize callbacks with useCallback (handleSort, renderGrowth, handleExportExcel)
- Export still includes ALL weeks for complete data
1. Changed weekTotals to use 'rows' instead of 'filteredRows' so totals
always show complete sums regardless of search/growth filters
2. Added second pass in mergeSalesAndAdsData to include ads records for
ASINs that have ad spend but no corresponding sales data
- Added Export Excel button to download filtered data as .xlsx
- Increased table container height to maximize visible rows
- Headers remain sticky at viewport top during scroll
- Added Gaining/Dropping/Stable filter modes with configurable threshold
- Filter compares unit volume between active week and previous week
- Updated toolbar UI with growth filter dropdown and threshold input
- Removed global Units/Spend toggle.
- Added separate clickable 'Units' and 'Spend' buttons in each week header.
- Updated handleSort and sort indicators for per-metric control.
- Fixed code duplication in WeeklyGrid.tsx.
- Added Units/Spend toggle to the toolbar.
- Refactored column sorting to use the active toggle metric.
- Simplified sort cycling to just toggle direction (DESC/ASC).
- Fixed JSX structure and code duplication.
- Increased font sizes for better readability across the grid.
- Implemented multi-metric sorting (Units DESC/ASC, Spend DESC/ASC) for week columns.
- Added visual indicators for active sort metric and direction.
- Implemented pagination and local search in WeeklyGrid to handle large datasets.
- Refactored Weekly Sales tab to show units and ad spend per SKU.
- Added default Pan-EU country filter (DE, FR, IT, ES) when no country is selected.
