feat: transaction fee

Signed-off-by: Chris Gianelloni <[email protected]>

Author: wolf31o2

ledger/allegra.go

@@ -109,6 +109,10 @@ func (t AllegraTransaction) Outputs() []TransactionOutput {
 	return t.Body.Outputs()
 }
 
+func (t AllegraTransaction) Fee() uint64 {
+	return t.Body.Fee()
+}
+
 func (t AllegraTransaction) Metadata() *cbor.Value {
 	return t.TxMetadata
 }

ledger/alonzo.go

@@ -204,6 +204,10 @@ func (t AlonzoTransaction) Outputs() []TransactionOutput {
 	return t.Body.Outputs()
 }
 
+func (t AlonzoTransaction) Fee() uint64 {
+	return t.Body.Fee()
+}
+
 func (t AlonzoTransaction) Metadata() *cbor.Value {
 	return t.TxMetadata
 }

ledger/babbage.go

@@ -318,6 +318,10 @@ func (t BabbageTransaction) Outputs() []TransactionOutput {
 	return t.Body.Outputs()
 }
 
+func (t BabbageTransaction) Fee() uint64 {
+	return t.Body.Fee()
+}
+
 func (t BabbageTransaction) Metadata() *cbor.Value {
 	return t.TxMetadata
 }

ledger/byron.go

@@ -124,6 +124,11 @@ func (t *ByronTransaction) Outputs() []TransactionOutput {
 	return nil
 }
 
+func (t *ByronTransaction) Fee() uint64 {
+	// TODO
+	return 0
+}
+
 func (t *ByronTransaction) Metadata() *cbor.Value {
 	return t.Attributes
 }

ledger/mary.go

@@ -120,6 +120,10 @@ func (t MaryTransaction) Outputs() []TransactionOutput {
 	return t.Body.Outputs()
 }
 
+func (t MaryTransaction) Fee() uint64 {
+	return t.Body.Fee()
+}
+
 func (t MaryTransaction) Metadata() *cbor.Value {
 	return t.TxMetadata
 }

ledger/shelley.go

@@ -125,7 +125,7 @@ type ShelleyTransactionBody struct {
 	hash      string
 	TxInputs  []ShelleyTransactionInput  `cbor:"0,keyasint,omitempty"`
 	TxOutputs []ShelleyTransactionOutput `cbor:"1,keyasint,omitempty"`
-	Fee       uint64                     `cbor:"2,keyasint,omitempty"`
+	TxFee     uint64                     `cbor:"2,keyasint,omitempty"`
 	Ttl       uint64                     `cbor:"3,keyasint,omitempty"`
 	// TODO: figure out how to parse properly
 	Certificates cbor.RawMessage `cbor:"4,keyasint,omitempty"`
@@ -169,6 +169,10 @@ func (b *ShelleyTransactionBody) Outputs() []TransactionOutput {
 	return ret
 }
 
+func (b *ShelleyTransactionBody) Fee() uint64 {
+	return b.TxFee
+}
+
 type ShelleyTransactionInput struct {
 	cbor.StructAsArray
 	TxId        Blake2b256
@@ -249,6 +253,10 @@ func (t ShelleyTransaction) Outputs() []TransactionOutput {
 	return t.Body.Outputs()
 }
 
+func (t ShelleyTransaction) Fee() uint64 {
+	return t.Body.Fee()
+}
+
 func (t ShelleyTransaction) Metadata() *cbor.Value {
 	return t.TxMetadata
 }

ledger/tx.go

@@ -32,6 +32,7 @@ type TransactionBody interface {
 	Cbor() []byte
 	Inputs() []TransactionInput
 	Outputs() []TransactionOutput
+	Fee() uint64
 }
 
 type TransactionInput interface {