coinsapi/src/dcrcash/dcrcashcoin.go

package dcrcash

import (
	"encoding/json"
	"fmt"
	"strconv"
	. "template"
	"time"

	simplejson "github.com/go-simplejson"
	tml "github.com/toml-master"
)

var (
	Config     config
	CoinApi    DcrCashApi
	WalleTxfee float64
)

type DcrCash struct {
	walletstatus bool
}

const (
	NameCoin           = "DCR"
	SendToError        = "-32603"
	DefaultMaxsumamout = 20.0
	DEFAULTACCOUNT     = "default"
)

func (m DcrCash) InitDriver(param interface{}) bool {
	if m.initconfig() == false {
		return false
	}
	go m.getwalletinfo()
	return true
}

func (m DcrCash) initconfig() bool {
	if _, err := tml.DecodeFile("./src/dcrcash/dcrcash.toml", &Config); err != nil {
		fmt.Println(err)
		return false
	}

	fmt.Printf("%+v\n", Config)
	User := Config.Rpc.Rpcuser
	Password := Config.Rpc.Rpcpassword
	Host := Config.Rpc.Rpchost
	Port := Config.Rpc.Rpcport
	//Walletpass = Config.WalletInfo.Pripassphrase

	CoinApi.InitRpcConf(User, Password, Host, Port)

	initDcrError()

	f, err := strconv.ParseFloat(Config.Limit.Fee, 64)
	if err != nil {
		LOG("ERROR", "init json error:%v", err.Error())
		return false
	}

	fee := float64(f)
	CoinApi.WalletSetTxFee(fee) //
	return true
}

func (m DcrCash) getwalletinfo() bool {
	fmt.Println("Walletinfo:")
	m.walletstatus = false

	for {
		if m.walletstatus == false {
			resp, err := CoinApi.WalletInfo()
			if err != nil {
				LOG("ERROR", "WalletInfo error:%v", err.Error())
				time.Sleep(time.Second * 1)
				continue
			}

			LOG("DEBUG", "walletInfo resp:%v", string(resp))
			m.walletstatus = true
		}

		time.Sleep(time.Second)
	}
}

func (m DcrCash) CoinBalance(parm interface{}) ([]byte, error) {
	confirmedBalance, err := CoinApi.WalleGetBalance("*")
	if err != nil {
		LOG("ERROR", " GetBalance err:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, GETBALANCE_ERR, getErrMsg(GETBALANCE_ERR, nil))
	}
	var balance []account
	if err = json.Unmarshal(confirmedBalance, &balance); err != nil {
		LOG("ERROR", " inner json error:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
	}
	//var totalConfirbalance float64
	//var totalUnconfirbalance float64
	var maxConfirbalance float64
	var maxUnconfirbalance float64
	for _, vbalance := range balance {
		/*if vbalance.Spendable != 0 {
			totalConfirbalance += vbalance.Spendable
		}
		if vbalance.Unconfirmed != 0 {
			totalUnconfirbalance += vbalance.Unconfirmed
		}*/
		if vbalance.Spendable > maxConfirbalance {
			maxConfirbalance = vbalance.Spendable
		}
		if vbalance.Unconfirmed > maxUnconfirbalance {
			maxUnconfirbalance = vbalance.Unconfirmed
		}

	}
	var jbuf []byte
	resp := make(map[string]interface{})
	resp["confirmedbalance"] = maxConfirbalance
	resp["unconfirmed"] = maxUnconfirbalance
	resp["errcode"] = 0
	resp["exact"] = 0
	if jbuf, err = json.Marshal(resp); err != nil {
		LOG("ERROR", "lite inner json error:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
	}

	return jbuf, nil
}

func (m DcrCash) CreateAddress(parm interface{}) ([]byte, error) {
	addr, err := CoinApi.WalletNewAddr()
	if err != nil {
		LOG("ERROR", "  get new address error:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, GETNEWADDRESS_ERR, getErrMsg(GETNEWADDRESS_ERR, nil))
	}
	if len(addr) != 0 {
		//get key by the address
		key, err := CoinApi.WalletDumpPrivKey(addr)

		if err != nil {
			LOG("ERROR", " dump private key error:%v", err.Error())
			return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, DUMPPRIVKEY_ERR, getErrMsg(DUMPPRIVKEY_ERR, nil))
		}
		if len(key) != 0 {

			var jbuf []byte
			resp := make(map[string]interface{})
			resp["address"] = addr
			resp["privkey"] = key
			resp["errcode"] = 0

			if jbuf, err = json.Marshal(resp); err != nil {
				LOG("ERROR", " inner json error:%v", err.Error())
				return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
			}
			return jbuf, nil
		}
		LOG("ERROR", " privkey is null error:%v")
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
	}
	LOG("ERROR", " address is null error:%v")
	return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
}

func (m DcrCash) SumcoinBalance(parm interface{}) ([]byte, error) {
	pjs := parm.(*simplejson.Json)
	//
	Sumamount := pjs.Get("sumamount").MustFloat64()
	Minsumamount := pjs.Get("minamount").MustFloat64()

	if Sumamount <= 0.0 {
		LOG("ERROR", " Summary amount is nil!")
		Sumamount = DefaultMaxsumamout
	}
	if Minsumamount < WalleTxfee {
		Minsumamount = WalleTxfee
	}
	//list Accounts and account of balance
	accountsofValues, err := CoinApi.ListAccounts()
	if err != nil {
		LOG("ERROR", "List accounts error:%v", err.Error())
		return nil, err
	}
	//var AccValues []AccountsOfvalue
	AccValues := map[string]float64{}
	if err = json.Unmarshal(accountsofValues, &AccValues); err != nil {
		LOG("ERROR", "Unmarshal error:%v", err.Error())
		return nil, err
	}
	var Totalbalance float64
	transactionsids := make([]string, 0)
	for account, value := range AccValues {
		if (value > Minsumamount) && account != DEFAULTACCOUNT {
			amount := value - WalleTxfee
			transactionid, err := CoinApi.WalletSendFrom(account, DEFAULTACCOUNT, amount, 1, "", "")
			if err != nil {
				LOG("ERROR", " Send coin error:%v", err.Error())
				//return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, SENDCOINS_ERR, getErrMsg(SENDCOINS_ERR, nil))
				continue
			}
			transactionsids = append(transactionsids, transactionid)
			Totalbalance += amount
			if Totalbalance >= Sumamount {
				break
			}
		}

	}
	if len(transactionsids) != 0 {
		var jbuf []byte
		resp := make(map[string]interface{})
		resp["transcationids"] = transactionsids
		resp["errcode"] = 0
		resp["msg"] = "ok"

		if jbuf, err = json.Marshal(resp); err != nil {
			LOG("ERROR", " inner json error:%v", err.Error())
			return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
		}
		return jbuf, nil
	}
	LOG("ERROR", " transactionids is null error:%v", err.Error())
	return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
	//fromaccout = "default"
}

func (m DcrCash) TransferAccounts(parm interface{}) ([]byte, error) {
	pjs := parm.(*simplejson.Json)
	amountTmp := pjs.Get("amount").MustString()
	destination := pjs.Get("address").MustString()

	if len(amountTmp) == 0 {
		LOG("ERROR", " amount illeagal")
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, AMOUNT_ERR, getErrMsg(AMOUNT_ERR, nil))
	}
	f, err := strconv.ParseFloat(amountTmp, 64)
	if err != nil {
		LOG("ERROR", " inner json error:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
	}

	amount := float64(f)
	//list Accounts and account of balance
	accountsofValues, err := CoinApi.ListAccounts()
	if err != nil {
		LOG("ERROR", "List accounts error:%v", err.Error())
		return nil, err
	}
	AccValues := map[string]float64{}
	if err = json.Unmarshal(accountsofValues, &AccValues); err != nil {
		LOG("ERROR", "Unmarshal error:%v", err.Error())
		return nil, err
	}

	fromaccout := ""
	for account, value := range AccValues {
		if value >= (amount + WalleTxfee) {
			fromaccout = account
			break
		}

	}

	transactionid, err := CoinApi.WalletSendFrom(fromaccout, destination, amount, 1, "", "")
	if err != nil {
		LOG("ERROR", " Send coin error:%v", err.Error())
		fmt.Println(transactionid)
		if transactionid == SendToError {
			return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INSUFFICIENT_FUNDS_TRANSACTION_ERR, getErrMsg(INSUFFICIENT_FUNDS_TRANSACTION_ERR, nil))
		}
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, SENDCOINS_ERR, getErrMsg(SENDCOINS_ERR, nil))
	}

	if len(transactionid) != 0 {
		var jbuf []byte
		resp := make(map[string]interface{})
		resp["transcationids"] = []string{transactionid}
		resp["errcode"] = 0
		resp["msg"] = "ok"

		if jbuf, err = json.Marshal(resp); err != nil {
			LOG("ERROR", " inner json error:%v", err.Error())
			return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
		}
		return jbuf, nil
	}
	LOG("ERROR", " transactionid is null error:%v", err.Error())
	return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
}

func (m DcrCash) TransInfo(parm interface{}) ([]byte, error) {
	pjs := parm.(*simplejson.Json)
	startH := pjs.Get("starth").MustUint64()
	endH := pjs.Get("endh").MustUint64()

	if startH < 1 {
		LOG("DEBUG", " input para  err:%v", startH)
		startH = 1
	}

	//get longest block count
	blockcount, err := CoinApi.WalleGetBlockCount()
	if err != nil {
		LOG("ERROR", " WalleGetBlockCount  err:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, GETCLOCKCOUNT_ERR, getErrMsg(GETCLOCKCOUNT_ERR, nil))
	}

	//get startblock hash by height

	if startH > blockcount {
		LOG("DEBUG", " startheight:%v >  blockcount:%v", startH, blockcount)
		startH = blockcount
	}

	startblockhash, err := CoinApi.WalletGetBlockHash(uint64(startH - 1))
	if err != nil {
		LOG("ERROR", " WalletGetBlockHash startH:%v err:%v", startH, err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, GETBLOCKINFO_ERR, getErrMsg(GETBLOCKINFO_ERR, nil))
	}

	//get endblock time by height
	if endH > blockcount {
		LOG("DEBUG", " endheight:%v >  blockcount:%v", endH, blockcount)
		endH = blockcount
	}

	endblockhash, err := CoinApi.WalletGetBlockHash(uint64(endH))
	if err != nil {
		LOG("ERROR", " WalletGetBlockHash startH:%v err:%v", startH, err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, GETBLOCKINFO_ERR, getErrMsg(GETBLOCKINFO_ERR, nil))
	}

	endblocktime, err := CoinApi.WalletGetBlockTime(endblockhash)
	if err != nil {
		LOG("ERROR", " WalletGetBlockTime endH:%v err:%v", endH, err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, GETBLOCKINFO_ERR, getErrMsg(GETBLOCKINFO_ERR, nil))
	}

	//Get all transactions in blocks since block [blockhash]
	resp, err := CoinApi.WalleListSinceBlock(startblockhash)
	if err != nil {
		LOG("ERROR", " WalleListSinceBlock err:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, TRANSINFO_ERR, getErrMsg(TRANSINFO_ERR, nil))
	}

	var litelisttransactionsinfo []Listtransactions

	if err = json.Unmarshal([]byte(resp), &litelisttransactionsinfo); err != nil {
		LOG("ERROR", " inner json error:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
	}

	outputsArr := make([]map[string]interface{}, 0)
	fmt.Println("WalleListSinceBlock_num:", len(litelisttransactionsinfo))
	for index, listtransaction := range litelisttransactionsinfo {

		// get all transactions from block startHright to endHeight
		fmt.Println("BLockTime,Endblocktime", listtransaction.Blocktime, endblocktime, index)
		if listtransaction.Blocktime <= endblocktime {
			requestData := make(map[string]interface{})
			confirmationheight, err := CoinApi.WalletGetBlockHeight(listtransaction.Blockhash)
			if err != nil {
				LOG("ERROR", "WalletGetBlockHeight error:%v", err.Error())
				continue
			}
			requestData["confirmationheight"] = confirmationheight
			requestData["address"] = listtransaction.Address
			requestData["confirmationtimestamp"] = listtransaction.Timereceived
			requestData["value"] = listtransaction.Amount
			requestData["transactionid"] = listtransaction.Txid
			requestData["confirmations"] = listtransaction.Confirmations
			requestData["walletaddress"] = true
			requestData["vout"] = listtransaction.Vout
			outputsArr = append(outputsArr, requestData)
		}
	}

	var jbuf []byte
	resptmp := make(map[string]interface{})
	resptmp["errcode"] = 0
	resptmp["cointype"] = "DCR"
	resptmp["outputs"] = outputsArr

	if jbuf, err = json.Marshal(resptmp); err != nil {
		LOG("ERROR", " inner json error:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
	}
	return jbuf, nil
}

func (m DcrCash) ListUnspent(parm interface{}) ([]byte, error) {
	pjs := parm.(*simplejson.Json)
	address, err := pjs.Get("address").StringArray()
	if err != nil {
		LOG("ERROR", "  input parm error:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, LISTUNSPENT_ERR, getErrMsg(LISTUNSPENT_ERR, nil))
	}
	unspent, err := CoinApi.Listunspent(address)
	if err != nil {
		LOG("ERROR", "  get listunspent:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, LISTUNSPENT_ERR, getErrMsg(LISTUNSPENT_ERR, nil))
	}

	var jbuf []byte
	resptmp := make(map[string]interface{})
	resptmp["errcode"] = 0
	resptmp["cointype"] = "DCR"
	resptmp["unspents"] = unspent

	if jbuf, err = json.Marshal(resptmp); err != nil {
		LOG("ERROR", " inner json error:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
	}
	return jbuf, nil
}

func (m DcrCash) SendRawTransaction(parm interface{}) ([]byte, error) {
	pjs := parm.(*simplejson.Json)
	transdata := pjs.Get("data").MustString()

	if len(transdata) == 0 {
		return nil, fmt.Errorf(`{"cointype":"DCR","errcode":%v,"msg":"%v"}`, PARM_ERR, getErrMsg(PARM_ERR, []byte("hexstring is null")))
	}
	transactionhex, err := CoinApi.SendRawTransaction(transdata)
	if err != nil {
		LOG("ERROR", " SendRawTransaction err:%s", err.Error())
		return nil, fmt.Errorf(`{"cointype":"DCR","errcode":%v,"msg":"%s"}`, SEND_RAW_TRANSACTION_ERR, getErrMsg(SEND_RAW_TRANSACTION_ERR, nil))
	}

	var jbuf []byte
	resp := make(map[string]interface{})
	resp["cointype"] = "DCR"
	resp["transactionids"] = transactionhex
	resp["errcode"] = 0
	resp["msg"] = "OK"

	if jbuf, err = json.Marshal(resp); err != nil {
		LOG("ERROR", "inner json error:%v", err.Error())
		return nil, fmt.Errorf(`{"cointype":"DCR","errcode":%v,"msg":"%s"}`, INNER_ERR, getErrMsg(INNER_ERR, nil))
	}
	return jbuf, nil
}
func (m DcrCash) ChainHeight(parm interface{}) ([]byte, error) {

	blockcount, err := CoinApi.WalleGetBlockCount()
	if err != nil {
		LOG("ERROR", "  get current block count error:%v", err.Error())
		return nil, fmt.Errorf(`{"errcode":%v,"mesage":"%s"}`, GETCLOCKCOUNT_ERR, getErrMsg(GETCLOCKCOUNT_ERR, nil))
	}

	sendstr := fmt.Sprintf(`{"errcode":%v,"height":%v}`, OK, blockcount)
	return []byte(sendstr), nil
}

func init() {

	Register(NameCoin, &DcrCash{})
}