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feat: helper function to convert TransactionOutput(s) to PlutusData #1115

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Merged
merged 1 commit into from
Jul 24, 2025
Merged

feat: helper function to convert TransactionOutput(s) to PlutusData #1115

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45 changes: 45 additions & 0 deletions ledger/alonzo/alonzo.go
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Original file line number Diff line number Diff line change
Expand Up @@ -17,11 +17,13 @@ package alonzo
import (
"encoding/json"
"fmt"
"math/big"

"github.com/blinklabs-io/gouroboros/cbor"
"github.com/blinklabs-io/gouroboros/ledger/common"
"github.com/blinklabs-io/gouroboros/ledger/mary"
"github.com/blinklabs-io/gouroboros/ledger/shelley"
"github.com/blinklabs-io/plutigo/pkg/data"
utxorpc "github.com/utxorpc/go-codegen/utxorpc/v1alpha/cardano"
)

Expand Down Expand Up @@ -332,6 +334,49 @@ func (o AlonzoTransactionOutput) MarshalJSON() ([]byte, error) {
return json.Marshal(&tmpObj)
}

func (o AlonzoTransactionOutput) ToPlutusData() data.PlutusData {
var valueData [][2]data.PlutusData
if o.OutputAmount.Amount > 0 {
valueData = append(
valueData,
[2]data.PlutusData{
data.NewByteString(nil),
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(nil),
data.NewInteger(new(big.Int).SetUint64(o.OutputAmount.Amount)),
},
},
),
},
)
}
if o.OutputAmount.Assets != nil {
assetData := o.OutputAmount.Assets.ToPlutusData()
assetDataMap, ok := assetData.(*data.Map)
if !ok {
return nil
}
valueData = append(
valueData,
assetDataMap.Pairs...,
)
}
tmpData := data.NewConstr(
0,
o.OutputAddress.ToPlutusData(),
data.NewMap(valueData),
// Empty datum option
// TODO: implement this
data.NewConstr(0),
// Empty script ref
// TODO: implement this
data.NewConstr(1),
)
return tmpData
}

func (o AlonzoTransactionOutput) Address() common.Address {
return o.OutputAddress
}
Expand Down
172 changes: 172 additions & 0 deletions ledger/alonzo/alonzo_test.go
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Original file line number Diff line number Diff line change
@@ -0,0 +1,172 @@
// Copyright 2025 Blink Labs Software
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package alonzo

import (
"math/big"
"reflect"
"testing"

"github.com/blinklabs-io/gouroboros/cbor"
"github.com/blinklabs-io/gouroboros/internal/test"
"github.com/blinklabs-io/gouroboros/ledger/common"
"github.com/blinklabs-io/gouroboros/ledger/mary"
"github.com/blinklabs-io/plutigo/pkg/data"
)

func TestAlonzoTransactionOutputToPlutusDataCoinOnly(t *testing.T) {
testAddr := "addr_test1vqg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygxrcya6"
var testAmount uint64 = 123_456_789
testTxOut := AlonzoTransactionOutput{
OutputAddress: func() common.Address { foo, _ := common.NewAddress(testAddr); return foo }(),
OutputAmount: mary.MaryTransactionOutputValue{
Amount: testAmount,
},
}
expectedData := data.NewConstr(
0,
// Address
data.NewConstr(
0,
data.NewConstr(
0,
data.NewConstr(
0,
data.NewByteString(
[]byte{
0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
},
),
),
),
data.NewConstr(
1,
),
),
// Value
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(nil),
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(nil),
data.NewInteger(big.NewInt(int64(testAmount))),
},
},
),
},
},
),
// TODO: empty datum option
data.NewConstr(0),
// TODO: empty script ref
data.NewConstr(1),
)
tmpData := testTxOut.ToPlutusData()
if !reflect.DeepEqual(tmpData, expectedData) {
t.Fatalf("did not get expected PlutusData\n got: %#v\n wanted: %#v", tmpData, expectedData)
}
}

func TestAlonzoTransactionOutputToPlutusDataCoinAssets(t *testing.T) {
testAddr := "addr_test1vqg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zyg3zygxrcya6"
var testAmount uint64 = 123_456_789
testAssets := common.NewMultiAsset[common.MultiAssetTypeOutput](
map[common.Blake2b224]map[cbor.ByteString]common.MultiAssetTypeOutput{
common.NewBlake2b224(test.DecodeHexString("29a8fb8318718bd756124f0c144f56d4b4579dc5edf2dd42d669ac61")): {
cbor.NewByteString(test.DecodeHexString("6675726e697368613239686e")): 123456,
},
common.NewBlake2b224(test.DecodeHexString("eaf8042c1d8203b1c585822f54ec32c4c1bb4d3914603e2cca20bbd5")): {
cbor.NewByteString(test.DecodeHexString("426f7764757261436f6e63657074733638")): 234567,
},
},
)
testTxOut := AlonzoTransactionOutput{
OutputAddress: func() common.Address { foo, _ := common.NewAddress(testAddr); return foo }(),
OutputAmount: mary.MaryTransactionOutputValue{
Amount: testAmount,
Assets: &testAssets,
},
}
expectedData := data.NewConstr(
0,
// Address
data.NewConstr(
0,
data.NewConstr(
0,
data.NewConstr(
0,
data.NewByteString(
[]byte{
0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11, 0x11,
},
),
),
),
data.NewConstr(
1,
),
),
// Value
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(nil),
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(nil),
data.NewInteger(big.NewInt(int64(testAmount))),
},
},
),
},
{
data.NewByteString(test.DecodeHexString("29a8fb8318718bd756124f0c144f56d4b4579dc5edf2dd42d669ac61")),
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(test.DecodeHexString("6675726e697368613239686e")),
data.NewInteger(big.NewInt(123456)),
},
},
),
},
{
data.NewByteString(test.DecodeHexString("eaf8042c1d8203b1c585822f54ec32c4c1bb4d3914603e2cca20bbd5")),
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(test.DecodeHexString("426f7764757261436f6e63657074733638")),
data.NewInteger(big.NewInt(234567)),
},
},
),
},
},
),
// Empty datum option
data.NewConstr(0),
// Empty script ref
data.NewConstr(1),
)
tmpData := testTxOut.ToPlutusData()
if !reflect.DeepEqual(tmpData, expectedData) {
t.Fatalf("did not get expected PlutusData\n got: %#v\n wanted: %#v", tmpData, expectedData)
}
}
45 changes: 45 additions & 0 deletions ledger/babbage/babbage.go
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Original file line number Diff line number Diff line change
Expand Up @@ -18,12 +18,14 @@ import (
"encoding/json"
"errors"
"fmt"
"math/big"

"github.com/blinklabs-io/gouroboros/cbor"
"github.com/blinklabs-io/gouroboros/ledger/alonzo"
"github.com/blinklabs-io/gouroboros/ledger/common"
"github.com/blinklabs-io/gouroboros/ledger/mary"
"github.com/blinklabs-io/gouroboros/ledger/shelley"
"github.com/blinklabs-io/plutigo/pkg/data"
utxorpc "github.com/utxorpc/go-codegen/utxorpc/v1alpha/cardano"
)

Expand Down Expand Up @@ -487,6 +489,49 @@ func (o BabbageTransactionOutput) MarshalJSON() ([]byte, error) {
return json.Marshal(&tmpObj)
}

func (o BabbageTransactionOutput) ToPlutusData() data.PlutusData {
var valueData [][2]data.PlutusData
if o.OutputAmount.Amount > 0 {
valueData = append(
valueData,
[2]data.PlutusData{
data.NewByteString(nil),
data.NewMap(
[][2]data.PlutusData{
{
data.NewByteString(nil),
data.NewInteger(new(big.Int).SetUint64(o.OutputAmount.Amount)),
},
},
),
},
)
}
if o.OutputAmount.Assets != nil {
assetData := o.OutputAmount.Assets.ToPlutusData()
assetDataMap, ok := assetData.(*data.Map)
if !ok {
return nil
}
valueData = append(
valueData,
assetDataMap.Pairs...,
)
}
tmpData := data.NewConstr(
0,
o.OutputAddress.ToPlutusData(),
data.NewMap(valueData),
// Empty datum option
// TODO: implement this
data.NewConstr(0),
// Empty script ref
// TODO: implement this
data.NewConstr(1),
)
return tmpData
}

func (o BabbageTransactionOutput) Address() common.Address {
return o.OutputAddress
}
Expand Down
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