package main
import (
"math/big"
"fmt"
"encoding/hex"
"crypto/sha256"
_ "bytes"
"strconv"
)
/*
Transaction Contract Size
-------------------------------------------
sender sender 20 bytes
recipient 0x0 20 bytes
value endowment 4 bytes (uint32)
fee fee 4 bytes (uint32)
d_size o_size 4 bytes (uint32)
data ops *
signature signature 64 bytes
*/
var StepFee *big.Int = new(big.Int)
var TxFee *big.Int = new(big.Int)
var MemFee *big.Int = new(big.Int)
var DataFee *big.Int = new(big.Int)
var CryptoFee *big.Int = new(big.Int)
var ExtroFee *big.Int = new(big.Int)
var Period1Reward *big.Int = new(big.Int)
var Period2Reward *big.Int = new(big.Int)
var Period3Reward *big.Int = new(big.Int)
var Period4Reward *big.Int = new(big.Int)
type Transaction struct {
sender string
recipient uint32
value uint32
fee uint32
data []string
memory []int
signature string
addr string
}
func NewTransaction(to uint32, value uint32, data []string) *Transaction {
tx := Transaction{sender: "1234567890", recipient: to, value: value}
tx.fee = 0//uint32((ContractFee + MemoryFee * float32(len(tx.data))) * 1e8)
// Serialize the data
tx.data = make([]string, len(data))
for i, val := range data {
instr, err := CompileInstr(val)
if err != nil {
fmt.Printf("compile error:%d %v", i+1, err)
}
tx.data[i] = instr
}
b:= []byte(tx.Serialize())
hash := sha256.Sum256(b)
tx.addr = hex.EncodeToString(hash[0:19])
return &tx
}
func Uitoa(i uint32) string {
return strconv.FormatUint(uint64(i), 10)
}
func (tx *Transaction) Serialize() string {
// Prepare the transaction for serialization
preEnc := []interface{}{
"0", // TODO last Tx
tx.sender,
// XXX In the future there's no need to cast to string because they'll end up being big numbers (strings)
Uitoa(tx.recipient),
Uitoa(tx.value),
Uitoa(tx.fee),
tx.data,
}
return RlpEncode(preEnc)
}
func InitFees() {
// Base for 2**60
b60 := new(big.Int)
b60.Exp(big.NewInt(2), big.NewInt(60), big.NewInt(0))
// Base for 2**80
b80 := new(big.Int)
b80.Exp(big.NewInt(2), big.NewInt(80), big.NewInt(0))
StepFee.Mul(b60, big.NewInt(4096))
//fmt.Println("StepFee:", StepFee)
TxFee.Mul(b60, big.NewInt(524288))
//fmt.Println("TxFee:", TxFee)
MemFee.Mul(b60, big.NewInt(262144))
//fmt.Println("MemFee:", MemFee)
DataFee.Mul(b60, big.NewInt(16384))
//fmt.Println("DataFee:", DataFee)
CryptoFee.Mul(b60, big.NewInt(65536))
//fmt.Println("CrytoFee:", CryptoFee)
ExtroFee.Mul(b60, big.NewInt(65536))
//fmt.Println("ExtroFee:", ExtroFee)
Period1Reward.Mul(b80, big.NewInt(1024))
//fmt.Println("Period1Reward:", Period1Reward)
Period2Reward.Mul(b80, big.NewInt(512))
//fmt.Println("Period2Reward:", Period2Reward)
Period3Reward.Mul(b80, big.NewInt(256))
//fmt.Println("Period3Reward:", Period3Reward)
Period4Reward.Mul(b80, big.NewInt(128))
//fmt.Println("Period4Reward:", Period4Reward)
}
