chore(BUX-164): move CMP into separate file

compound_merkle_path.go

@@ -0,0 +1,18 @@
+package paymail
+
+type CompoundMerklePath []map[string]uint64
+
+type CMPSlice []CompoundMerklePath
+
+func (cmp CompoundMerklePath) calculateMerkleRoots() ([]string, error) {
+	merkleRoots := make([]string, 0)
+
+	for tx, offset := range cmp[len(cmp)-1] {
+		merkleRoot, err := calculateMerkleRoot(tx, offset, cmp)
+		if err != nil {
+			return nil, err
+		}
+		merkleRoots = append(merkleRoots, merkleRoot)
+	}
+	return merkleRoots, nil
+}

p2p_beef_tx.go

@@ -11,10 +11,6 @@ import (
 	"github.com/libsv/go-bt/v2/bscript/interpreter"
 )
 
-type CompoundMerklePath []map[string]uint64
-
-type CMPSlice []CompoundMerklePath
-
 type MerkleRootVerifier interface {
 	VerifyMerkleRoots(
 		ctx context.Context,
@@ -172,19 +168,6 @@ func (dBeef *DecodedBEEF) validateLockTime() error {
 	return nil
 }
 
-func (cmp CompoundMerklePath) calculateMerkleRoots() ([]string, error) {
-	merkleRoots := make([]string, 0)
-
-	for tx, offset := range cmp[len(cmp)-1] {
-		merkleRoot, err := calculateMerkleRoot(tx, offset, cmp)
-		if err != nil {
-			return nil, err
-		}
-		merkleRoots = append(merkleRoots, merkleRoot)
-	}
-	return merkleRoots, nil
-}
-
 // Verify locking and unlocking scripts pair
 func verifyScripts(tx, prevTx *bt.Tx, inputIdx int) bool {
 	input := tx.InputIdx(inputIdx)