github.com/mavryk-network/mvgo@v1.19.9/codec/transaction.go (about)

     1  // Copyright (c) 2020-2022 Blockwatch Data Inc.
     2  // Author: alex@blockwatch.cc
     3  
     4  package codec
     5  
     6  import (
     7  	"bytes"
     8  	"strconv"
     9  
    10  	"github.com/mavryk-network/mvgo/mavryk"
    11  	"github.com/mavryk-network/mvgo/micheline"
    12  )
    13  
    14  // Transaction represents "transaction" operation
    15  type Transaction struct {
    16  	Manager
    17  	Amount      mavryk.N              `json:"amount"`
    18  	Destination mavryk.Address        `json:"destination"`
    19  	Parameters  *micheline.Parameters `json:"parameters,omitempty"`
    20  }
    21  
    22  func (o Transaction) Kind() mavryk.OpType {
    23  	return mavryk.OpTypeTransaction
    24  }
    25  
    26  func (o Transaction) MarshalJSON() ([]byte, error) {
    27  	buf := bytes.NewBuffer(nil)
    28  	buf.WriteByte('{')
    29  	buf.WriteString(`"kind":`)
    30  	buf.WriteString(strconv.Quote(o.Kind().String()))
    31  	buf.WriteByte(',')
    32  	o.Manager.EncodeJSON(buf)
    33  	buf.WriteString(`,"amount":`)
    34  	buf.WriteString(strconv.Quote(o.Amount.String()))
    35  	buf.WriteString(`,"destination":`)
    36  	buf.WriteString(strconv.Quote(o.Destination.String()))
    37  	if o.Parameters != nil {
    38  		buf.WriteString(`,"parameters":`)
    39  		b, _ := o.Parameters.MarshalJSON()
    40  		buf.Write(b)
    41  	}
    42  	buf.WriteByte('}')
    43  	return buf.Bytes(), nil
    44  }
    45  
    46  func (o Transaction) EncodeBuffer(buf *bytes.Buffer, p *mavryk.Params) error {
    47  	buf.WriteByte(o.Kind().TagVersion(p.OperationTagsVersion))
    48  	o.Manager.EncodeBuffer(buf, p)
    49  	o.Amount.EncodeBuffer(buf)
    50  	buf.Write(o.Destination.EncodePadded())
    51  	if o.Parameters != nil {
    52  		buf.WriteByte(0xff)
    53  		o.Parameters.EncodeBuffer(buf)
    54  	} else {
    55  		buf.WriteByte(0x0)
    56  	}
    57  	return nil
    58  }
    59  
    60  func (o *Transaction) DecodeBuffer(buf *bytes.Buffer, p *mavryk.Params) (err error) {
    61  	if err = ensureTagAndSize(buf, o.Kind(), p.OperationTagsVersion); err != nil {
    62  		return
    63  	}
    64  	if err = o.Manager.DecodeBuffer(buf, p); err != nil {
    65  		return err
    66  	}
    67  	if err = o.Amount.DecodeBuffer(buf); err != nil {
    68  		return
    69  	}
    70  	if err = o.Destination.Decode(buf.Next(22)); err != nil {
    71  		return
    72  	}
    73  	var ok bool
    74  	ok, err = readBool(buf.Next(1))
    75  	if err != nil {
    76  		return
    77  	}
    78  	if ok {
    79  		param := &micheline.Parameters{}
    80  		if err = param.DecodeBuffer(buf); err != nil {
    81  			return err
    82  		}
    83  		o.Parameters = param
    84  	}
    85  	return nil
    86  }
    87  
    88  func (o Transaction) MarshalBinary() ([]byte, error) {
    89  	buf := bytes.NewBuffer(nil)
    90  	err := o.EncodeBuffer(buf, mavryk.DefaultParams)
    91  	return buf.Bytes(), err
    92  }
    93  
    94  func (o *Transaction) UnmarshalBinary(data []byte) error {
    95  	return o.DecodeBuffer(bytes.NewBuffer(data), mavryk.DefaultParams)
    96  }