25 lines
1.2 KiB
C#
25 lines
1.2 KiB
C#
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using PalladiumWallet.Core.Chain;
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using PalladiumWallet.Core.Storage;
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namespace PalladiumWallet.Core.Wallet;
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/// <summary>
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/// Confirmation-threshold rules shared between coin selection (<see cref="TransactionFactory"/>)
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/// and balance reporting: a coinbase output needs COINBASE_MATURITY + 1 confirmations
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/// (consensus rule nSpendHeight - nHeight >= 120, plus one block of safety margin, matching
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/// the Qt wallet); a regular output needs <see cref="ChainProfile.MinConfirmations"/> (wallet
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/// policy, no consensus rule).
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/// </summary>
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public static class UtxoSpendability
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{
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public static int RequiredConfirmations(this CachedUtxo utxo, ChainProfile profile) =>
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utxo.IsCoinbase ? profile.CoinbaseMaturity + 1 : profile.MinConfirmations;
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public static int Confirmations(this CachedUtxo utxo, int tipHeight) =>
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utxo.Height <= 0 ? 0 : tipHeight - utxo.Height + 1;
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/// <summary>True when the UTXO has met its confirmation threshold and is not frozen.</summary>
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public static bool IsSpendable(this CachedUtxo utxo, ChainProfile profile, int tipHeight) =>
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!utxo.Frozen && utxo.Height > 0 && utxo.Confirmations(tipHeight) >= utxo.RequiredConfirmations(profile);
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}
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