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
@@ -8,6 +8,7 @@ import (

 type DashboardRepo interface {
 	MonthlySummary(ctx context.Context, month string) (income, expenses float64, err error)
+	TotalTaxes(ctx context.Context, month string) (float64, error)
 	ByCategory(ctx context.Context, month string) ([]model.CategoryTotal, error)
 	MonthlyEvolution(ctx context.Context, month string) ([]model.MonthEvolution, error)
 	RecentTransactions(ctx context.Context, month string) ([]model.RecentTransaction, error)
@@ -34,6 +35,11 @@ func (s *DashboardService) Get(ctx context.Context, month string) (*model.Dashbo
 		return nil, err
 	}

+	taxes, err := s.repo.TotalTaxes(ctx, month)
+	if err != nil {
+		return nil, err
+	}
+
 	byCategory, err := s.repo.ByCategory(ctx, month)
 	if err != nil {
 		return nil, err
@@ -49,9 +55,11 @@ func (s *DashboardService) Get(ctx context.Context, month string) (*model.Dashbo
 		return nil, err
 	}

+	// savings_pct uses net income (gross - taxes) as denominator (Option B)
 	var savingsPct float64
-	if income > 0 {
-		savingsPct = (income - expenses) / income * 100
+	netIncome := income - taxes
+	if netIncome > 0 {
+		savingsPct = (income - expenses) / netIncome * 100
 	}

 	statuses, err := s.recurrSvc.MonthlyStatus(ctx, month)