Add Support for big Ints within plutusData

ApolloBuilder_test.go

@@ -4,6 +4,7 @@ import (
 	"encoding/hex"
 	"encoding/json"
 	"fmt"
+	"math/big"
 	"testing"
 
 	"github.com/Salvionied/apollo"
@@ -1233,3 +1234,20 @@ func TestMapWithCbor(t *testing.T) {
 	}
 
 }
+
+func TestPlutusBigInt(t *testing.T) {
+	x := "c249056bc75e2d63100000"
+	decoded, _ := hex.DecodeString(x)
+	var y PlutusData.PlutusData
+	err := cbor.Unmarshal(decoded, &y)
+	if err != nil {
+		t.Error(err)
+	}
+	if y.PlutusDataType != PlutusData.PlutusBigInt {
+		t.Error("Tx is not correct")
+	}
+	tmpBI := y.Value.(big.Int)
+	if tmpBI.String() != "100000000000000000000" {
+		t.Error("Tx is not correct")
+	}
+}

serialization/PlutusData/PlutusData.go

@@ -6,6 +6,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"math/big"
 	"reflect"
 	"sort"
 	"strings"
@@ -545,6 +546,7 @@ const (
 	PlutusMap
 	PlutusIntMap
 	PlutusInt
+	PlutusBigInt
 	PlutusBytes
 	PlutusShortArray
 )
@@ -924,6 +926,8 @@ func (pd *PlutusData) MarshalCBOR() ([]uint8, error) {
 		} else {
 			return canonicalenc.Marshal(pd.Value)
 		}
+	} else if pd.PlutusDataType == PlutusBigInt {
+		return cbor.Marshal(pd.Value)
 	} else {
 		//enc, _ := cbor.EncOptions{Sort: cbor.SortCTAP2}.EncMode()
 		if pd.TagNr == 0 {
@@ -1128,9 +1132,15 @@ func (pd *PlutusData) UnmarshalCBOR(value []uint8) error {
 	if err != nil {
 		return err
 	}
+	//fmt.Println(hex.EncodeToString(value))
 	ok, valid := x.(cbor.Tag)
 	if valid {
 		switch ok.Content.(type) {
+		case big.Int:
+			pd.PlutusDataType = PlutusBigInt
+			tmpBigInt := x.(big.Int)
+			pd.Value = tmpBigInt
+			pd.TagNr = 0
 		case []interface{}:
 			pd.TagNr = ok.Number
 			pd.PlutusDataType = PlutusArray
@@ -1170,6 +1180,11 @@ func (pd *PlutusData) UnmarshalCBOR(value []uint8) error {
 		}
 	} else {
 		switch x.(type) {
+		case big.Int:
+			pd.PlutusDataType = PlutusBigInt
+			tmpBigInt := x.(big.Int)
+			pd.Value = tmpBigInt
+			pd.TagNr = 0
 		case []interface{}:
 			if value[0] == 0x9f {
 				y := PlutusIndefArray{}