feat: categoria is_tax exclui impostos do denominador do savings_pct

savings_pct = (receita - despesas) / (receita - impostos). Toggle IMPOSTO no CRUD de categorias; badge dourado na lista. Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
2026-05-27 15:53:53 -03:00
parent 2cf6d94a03
commit 7dae05cabf
10 changed files with 90 additions and 35 deletions
@@ -90,6 +90,19 @@ func (r *DashboardRepository) MonthlyEvolution(ctx context.Context, month string
 	return out, rows.Err()
 }

+func (r *DashboardRepository) TotalTaxes(ctx context.Context, month string) (float64, error) {
+	var total float64
+	err := r.pool.QueryRow(ctx, `
+		SELECT COALESCE(SUM(t.amount), 0)
+		FROM transactions t
+		JOIN categories c ON c.id = t.category_id
+		WHERE to_char(t.date, 'YYYY-MM') = $1
+		  AND t.type = 'expense'
+		  AND c.is_tax = TRUE
+	`, month).Scan(&total)
+	return total, err
+}
+
 func (r *DashboardRepository) RecentTransactions(ctx context.Context, month string) ([]model.RecentTransaction, error) {
 	rows, err := r.pool.Query(ctx, `
 		SELECT