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package ethpub
import (
"github.com/ethereum/eth-go"
"github.com/ethereum/eth-go/ethchain"
"github.com/ethereum/eth-go/ethutil"
)
type PEthereum struct {
stateManager *ethchain.StateManager
blockChain *ethchain.BlockChain
txPool *ethchain.TxPool
}
func NewPEthereum(eth *eth.Ethereum) *PEthereum {
return &PEthereum{
eth.StateManager(),
eth.BlockChain(),
eth.TxPool(),
}
}
func (lib *PEthereum) GetBlock(hexHash string) *PBlock {
hash := ethutil.FromHex(hexHash)
block := lib.blockChain.GetBlock(hash)
return &PBlock{Number: int(block.BlockInfo().Number), Hash: ethutil.Hex(block.Hash())}
}
func (lib *PEthereum) GetKey() *PKey {
keyPair, err := ethchain.NewKeyPairFromSec(ethutil.Config.Db.GetKeys()[0].PrivateKey)
if err != nil {
return nil
}
return NewPKey(keyPair)
}
func (lib *PEthereum) GetStateObject(address string) *PStateObject {
stateObject := lib.stateManager.ProcState().GetContract(ethutil.FromHex(address))
if stateObject != nil {
return NewPStateObject(stateObject)
}
// See GetStorage for explanation on "nil"
return NewPStateObject(nil)
}
func (lib *PEthereum) Transact(key, recipient, valueStr, gasStr, gasPriceStr, dataStr string) (*PReceipt, error) {
return lib.createTx(key, recipient, valueStr, gasStr, gasPriceStr, dataStr, "")
}
func (lib *PEthereum) Create(key, valueStr, gasStr, gasPriceStr, initStr, bodyStr string) (*PReceipt, error) {
return lib.createTx(key, "", valueStr, gasStr, gasPriceStr, initStr, bodyStr)
}
func (lib *PEthereum) createTx(key, recipient, valueStr, gasStr, gasPriceStr, initStr, scriptStr string) (*PReceipt, error) {
var hash []byte
var contractCreation bool
if len(recipient) == 0 {
contractCreation = true
} else {
hash = ethutil.FromHex(recipient)
}
keyPair, err := ethchain.NewKeyPairFromSec([]byte(ethutil.FromHex(key)))
if err != nil {
return nil, err
}
value := ethutil.Big(valueStr)
gas := ethutil.Big(gasStr)
gasPrice := ethutil.Big(gasPriceStr)
var tx *ethchain.Transaction
// Compile and assemble the given data
if contractCreation {
initScript, err := ethutil.Compile(initStr)
if err != nil {
return nil, err
}
mainScript, err := ethutil.Compile(scriptStr)
if err != nil {
return nil, err
}
tx = ethchain.NewContractCreationTx(value, gas, gasPrice, mainScript, initScript)
} else {
// Just in case it was submitted as a 0x prefixed string
if initStr[0:2] == "0x" {
initStr = initStr[2:len(initStr)]
}
tx = ethchain.NewTransactionMessage(hash, value, gas, gasPrice, ethutil.FromHex(initStr))
}
acc := lib.stateManager.GetAddrState(keyPair.Address())
tx.Nonce = acc.Nonce
tx.Sign(keyPair.PrivateKey)
lib.txPool.QueueTransaction(tx)
if contractCreation {
ethutil.Config.Log.Infof("Contract addr %x", tx.CreationAddress())
} else {
ethutil.Config.Log.Infof("Tx hash %x", tx.Hash())
}
return NewPReciept(contractCreation, tx.CreationAddress(), tx.Hash(), keyPair.Address()), nil
}
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