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+// Copyright (c) 2009-2019 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#ifndef BITCOIN_NODE_PSBT_H
+#define BITCOIN_NODE_PSBT_H
+
+#include <psbt.h>
+
+/**
+ * Holds an analysis of one input from a PSBT
+ */
+struct PSBTInputAnalysis {
+ bool has_utxo; //!< Whether we have UTXO information for this input
+ bool is_final; //!< Whether the input has all required information including signatures
+ PSBTRole next; //!< Which of the BIP 174 roles needs to handle this input next
+
+ std::vector<CKeyID> missing_pubkeys; //!< Pubkeys whose BIP32 derivation path is missing
+ std::vector<CKeyID> missing_sigs; //!< Pubkeys whose signatures are missing
+ uint160 missing_redeem_script; //!< Hash160 of redeem script, if missing
+ uint256 missing_witness_script; //!< SHA256 of witness script, if missing
+};
+
+/**
+ * Holds the results of AnalyzePSBT (miscellaneous information about a PSBT)
+ */
+struct PSBTAnalysis {
+ Optional<size_t> estimated_vsize; //!< Estimated weight of the transaction
+ Optional<CFeeRate> estimated_feerate; //!< Estimated feerate (fee / weight) of the transaction
+ Optional<CAmount> fee; //!< Amount of fee being paid by the transaction
+ std::vector<PSBTInputAnalysis> inputs; //!< More information about the individual inputs of the transaction
+ PSBTRole next; //!< Which of the BIP 174 roles needs to handle the transaction next
+};
+
+/**
+ * Provides helpful miscellaneous information about where a PSBT is in the signing workflow.
+ *
+ * @param[in] psbtx the PSBT to analyze
+ * @return A PSBTAnalysis with information about the provided PSBT.
+ */
+PSBTAnalysis AnalyzePSBT(PartiallySignedTransaction psbtx);
+
+#endif // BITCOIN_NODE_PSBT_H