temp

cmd/cli/main.go

@@ -109,7 +109,7 @@ func Main() {
 			likes = append(likes, like)
 		}
 
-		for _, transaction := range transactions {
+		for i, transaction := range transactions {
 			balances := ledger.Deltas(transaction).Like(likes...).Balances()
 			shouldPrint := false
 			shouldPrint = shouldPrint || len(balances) > 2
@@ -123,7 +123,27 @@ func Main() {
 			}
 			if shouldPrint {
 				fmt.Printf("%s\t%s\n", transaction[0].Date, transaction[0].Description)
-				FPrintBalances(os.Stdout, "\t\t", ledger.Deltas(transaction).Like(likes...).Balances())
+				FPrintBalances(os.Stdout, "\t\t", balances)
+
+				cumulativeBalances := transactions[:i+1].Deltas().Like(likes...).Balances()
+				cumulativeBalancesKeys := []string{}
+				for k := range cumulativeBalances {
+					cumulativeBalancesKeys = append(cumulativeBalancesKeys, k)
+				}
+				slices.Sort(cumulativeBalancesKeys)
+
+				relevantCumulativeBalances := make(ledger.Balances)
+				for _, k := range cumulativeBalancesKeys {
+					m, ok := balances[k]
+					if !ok {
+						continue
+					}
+					relevantCumulativeBalances[k] = make(ledger.Balance)
+					for k2 := range m {
+						relevantCumulativeBalances[k][k2] = cumulativeBalances[k][k2]
+					}
+				}
+				fmt.Printf("\t\t(%+v)\n", relevantCumulativeBalances.Nonzero())
 			}
 		}
 	default:

src/ledger/transaction.go

@@ -18,6 +18,14 @@ type Transaction Deltas
 
 type Transactions []Transaction
 
+func (transactions Transactions) Deltas() Deltas {
+	result := make(Deltas, 0, len(transactions))
+	for _, transaction := range transactions {
+		result = append(result, transaction...)
+	}
+	return result
+}
+
 func (deltas Deltas) Transactions() Transactions {
 	m := make(map[string]Transaction)
 	for _, d := range deltas {