Release v0.3.0

vendor/github.com/muun/libwallet/fees.go

@@ -0,0 +1,57 @@
+package libwallet
+
+import (
+	"github.com/btcsuite/btcutil"
+	"github.com/muun/libwallet/fees"
+)
+
+type BestRouteFees struct {
+	MaxCapacity            int64
+	FeeProportionalMillionth int64
+	FeeBase           int64
+}
+
+type BestRouteFeesList struct {
+	list []fees.BestRouteFees
+}
+
+func (l *BestRouteFeesList) Add(f *BestRouteFees) {
+	l.list = append(l.list, fees.BestRouteFees{
+		MaxCapacity:            btcutil.Amount(f.MaxCapacity),
+		FeeProportionalMillionth: uint64(f.FeeProportionalMillionth),
+		FeeBase:           btcutil.Amount(f.FeeBase),
+	})
+}
+
+type FundingOutputPolicies struct {
+	MaximumDebt       int64
+	PotentialCollect  int64
+	MaxAmountFor0Conf int64
+}
+
+type SwapFees struct {
+	RoutingFee          int64
+	SweepFee            int64
+	DebtType            string
+	DebtAmount          int64
+	ConfirmationsNeeded int64
+}
+
+func ComputeSwapFees(amount int64, bestRouteFees *BestRouteFeesList, policies *FundingOutputPolicies) *SwapFees {
+	swapFees := fees.ComputeSwapFees(
+		btcutil.Amount(amount),
+		bestRouteFees.list,
+		&fees.FundingOutputPolicies{
+			MaximumDebt:       btcutil.Amount(policies.MaximumDebt),
+			PotentialCollect:  btcutil.Amount(policies.PotentialCollect),
+			MaxAmountFor0Conf: btcutil.Amount(policies.MaxAmountFor0Conf),
+		},
+	)
+	return &SwapFees{
+		RoutingFee:          int64(swapFees.RoutingFee),
+		SweepFee:            int64(swapFees.SweepFee),
+		DebtType:            string(swapFees.DebtType),
+		DebtAmount:          int64(swapFees.DebtAmount),
+		ConfirmationsNeeded: int64(swapFees.ConfirmationsNeeded),
+	}
+}