fix: calculate proper cost basis

2025-07-21 20:28:39 -05:00
parent 81af737204
commit 8e0d792d26
1 changed files with 8 additions and 2 deletions
@@ -14,12 +14,18 @@ class EnsureCostBasisAddedToSale
        // cost basis is required for sales to calculate realized gains
        if ($model->transaction_type == 'SELL') {

-            $average_cost_basis = Transaction::where([
+            $cost_basis = Transaction::where([
                'portfolio_id' => $model->portfolio_id,
                'symbol' => $model->symbol,
                'transaction_type' => 'BUY',
            ])->whereDate('date', '<=', $model->date)
-                ->average('cost_basis');
+                ->selectRaw('SUM(transactions.cost_basis * transactions.quantity) as total_cost_basis')
+                ->selectRaw('SUM(transactions.quantity) as total_quantity')
+                ->first();
+
+            $average_cost_basis = empty($cost_basis->total_quantity)
+                ? 0
+                : $cost_basis->total_cost_basis / $cost_basis->total_quantity;

            $model->cost_basis = $average_cost_basis ?? 0;
        }