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package ethui
import (
"encoding/hex"
"fmt"
"github.com/ethereum/eth-go/ethchain"
"github.com/ethereum/eth-go/ethutil"
"github.com/obscuren/mutan"
"strings"
)
type EthLib struct {
stateManager *ethchain.StateManager
blockChain *ethchain.BlockChain
txPool *ethchain.TxPool
}
func (lib *EthLib) CreateTx(recipient, valueStr, gasStr, gasPriceStr, data string) string {
var hash []byte
var contractCreation bool
if len(recipient) == 0 {
contractCreation = true
} else {
var err error
hash, err = hex.DecodeString(recipient)
if err != nil {
return err.Error()
}
}
keyPair := ethutil.Config.Db.GetKeys()[0]
value := ethutil.Big(valueStr)
gas := ethutil.Big(valueStr)
gasPrice := ethutil.Big(gasPriceStr)
var tx *ethchain.Transaction
// Compile and assemble the given data
if contractCreation {
asm, err := mutan.NewCompiler().Compile(strings.NewReader(data))
if err != nil {
return err.Error()
}
code := ethutil.Assemble(asm)
tx = ethchain.NewContractCreationTx(value, gasPrice, code)
} else {
tx = ethchain.NewTransactionMessage(hash, value, gasPrice, gas, []string{})
}
tx.Nonce = lib.stateManager.GetAddrState(keyPair.Address()).Nonce
tx.Sign(keyPair.PrivateKey)
lib.txPool.QueueTransaction(tx)
if contractCreation {
ethutil.Config.Log.Infof("Contract addr %x", tx.Hash()[12:])
} else {
ethutil.Config.Log.Infof("Tx hash %x", tx.Hash())
}
return ethutil.Hex(tx.Hash())
}
/*
func (lib *EthLib) CreateTx(receiver, a, data string) string {
var hash []byte
if len(receiver) == 0 {
hash = ethchain.ContractAddr
} else {
var err error
hash, err = hex.DecodeString(receiver)
if err != nil {
return err.Error()
}
}
k, _ := ethutil.Config.Db.Get([]byte("KeyRing"))
keyPair := ethutil.NewKeyFromBytes(k)
amount := ethutil.Big(a)
code := ethchain.Compile(strings.Split(data, "\n"))
tx := ethchain.NewTx(hash, amount, code)
tx.Nonce = lib.stateManager.GetAddrState(keyPair.Address()).Nonce
tx.Sign(keyPair.PrivateKey)
lib.txPool.QueueTransaction(tx)
if len(receiver) == 0 {
ethutil.Config.Log.Infof("Contract addr %x", tx.Hash()[12:])
} else {
ethutil.Config.Log.Infof("Tx hash %x", tx.Hash())
}
return ethutil.Hex(tx.Hash())
}
*/
func (lib *EthLib) GetBlock(hexHash string) *Block {
hash, err := hex.DecodeString(hexHash)
if err != nil {
return nil
}
block := lib.blockChain.GetBlock(hash)
fmt.Println(block)
return &Block{Number: int(block.BlockInfo().Number), Hash: ethutil.Hex(block.Hash())}
}
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