59 lines
1.6 KiB
Go
59 lines
1.6 KiB
Go
package libwallet
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import (
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"github.com/btcsuite/btcutil"
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"github.com/muun/libwallet/fees"
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)
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type BestRouteFees struct {
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MaxCapacity int64
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FeeProportionalMillionth int64
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FeeBase int64
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}
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type BestRouteFeesList struct {
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list []fees.BestRouteFees
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}
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func (l *BestRouteFeesList) Add(f *BestRouteFees) {
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l.list = append(l.list, fees.BestRouteFees{
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MaxCapacity: btcutil.Amount(f.MaxCapacity),
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FeeProportionalMillionth: uint64(f.FeeProportionalMillionth),
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FeeBase: btcutil.Amount(f.FeeBase),
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})
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}
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type FundingOutputPolicies struct {
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MaximumDebt int64
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PotentialCollect int64
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MaxAmountFor0Conf int64
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}
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type SwapFees struct {
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RoutingFee int64
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SweepFee int64 // TODO: this should be called outputPadding, keeping name for retrocompat for now
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DebtType string
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DebtAmount int64
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ConfirmationsNeeded int64
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}
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func ComputeSwapFees(amount int64, bestRouteFees *BestRouteFeesList, policies *FundingOutputPolicies) *SwapFees {
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swapFees := fees.ComputeSwapFees(
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btcutil.Amount(amount),
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bestRouteFees.list,
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&fees.FundingOutputPolicies{
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MaximumDebt: btcutil.Amount(policies.MaximumDebt),
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PotentialCollect: btcutil.Amount(policies.PotentialCollect),
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MaxAmountFor0Conf: btcutil.Amount(policies.MaxAmountFor0Conf),
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},
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false,
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)
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return &SwapFees{
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RoutingFee: int64(swapFees.RoutingFee),
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SweepFee: int64(swapFees.OutputPadding),
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DebtType: string(swapFees.DebtType),
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DebtAmount: int64(swapFees.DebtAmount),
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ConfirmationsNeeded: int64(swapFees.ConfirmationsNeeded),
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}
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}
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