/**
* 取消购买BPEC
*/
public static bool cancelBPEC(byte[] owner, BigInteger tokenId)
{
bool bol = false;
if (Runtime.CheckWitness(owner) && owner.Length == 20)
{
object[] objInfo = getAuctionRecord(tokenId);
if (objInfo.Length > 0)
{
AuctionRecord record = (AuctionRecord)(object)objInfo;
if (record.recordState == 0 && owner == record.seller)
{
object[] args = new object[3] {
AuctionOwner, owner, record.value
};
bool res = (bool)bpecCall("transfer", args);
if (res)
{
// 删除拍卖
Storage.Delete(Storage.CurrentContext, "buy".AsByteArray().Concat(tokenId.AsByteArray()));
//
CancelBPECed(1, owner, record.tokenId);
bol = true;
}
}
}
}
// notify
if (bol == false)
{
CancelBPECed(0, owner, tokenId);
}
return(bol);
}
public void CargarSubasta(string nombreProducto)
{
string oferta, nombre;
AuctionBLL subastaBLL = new AuctionBLL();
Auction subasta = new Auction();
AuctionRecord historialSubasta = new AuctionRecord();
AuctionRecordBLL historialSubastaBLL = new AuctionRecordBLL();
historialSubasta = historialSubastaBLL.cargarHistorialPorProducto(nombreProducto);
subasta = subastaBLL.CargarSubasta(nombreProducto);
if (historialSubasta is null)
{
oferta = "00.00";
nombre = "Sin ofertante";
}
else
{
oferta = historialSubasta.Amount.ToString();
nombre = historialSubasta.User.Name;
}
lblIdSubasta.Text = subasta.AuctionId.ToString();
lblNombre.Text = subasta.ProductName;
lblDescripcion.Text = subasta.Description;
lblFechaInicio.Text = subasta.StartDate.ToString();
lblFechaFin.Text = subasta.EndDate.ToString();
txtOfertaActual.Text = oferta;
lblUsuarioOfertaAlta.Text = nombre;
}
/// <summary>
/// Store auction transaction records
/// </summary>
public static void _putAuctionRecord(byte[] tokenId, AuctionRecord info)
{
var key = "auction".AsByteArray().Concat(tokenId);
byte[] bytes = Helper.Serialize(info);
Storage.Put(Storage.CurrentContext, key, bytes);
}
/**
* 存储拍卖成交记录
*/
private static void _putAuctionRecord(byte[] dressId, AuctionRecord info)
{
byte[] txInfo = Helper.Serialize(info);
var key = "buy".AsByteArray().Concat(dressId);
Storage.Put(Storage.CurrentContext, key, txInfo);
}
public void agregarPuja(AuctionRecord record, int auctionID)
{
Subasta_Registro_DAL registro = new Subasta_Registro_DAL();
Subasta_BLL subasta = new Subasta_BLL();
object itemSubasta = new object();
itemSubasta = subasta.cargarSubastaId(auctionID);
var EndDate = Convert.ToDateTime(itemSubasta.GetType().GetProperty("EndDate").GetValue(itemSubasta, null)).ToString();
if (DateTime.Compare(Convert.ToDateTime(EndDate), record.BidDate) >= 0)
{
if (record.Amount > 0 && record.Amount < 1000000)
{
if (record.UserId != int.Parse((itemSubasta.GetType().GetProperty("UserId").GetValue(itemSubasta, null)).ToString()))
{
if (itemSubasta.GetType().GetProperty("HighestBid").GetValue(itemSubasta, null) is null)
{
using (TransactionScope ts = new TransactionScope())
{
registro.agregarPuja(record);
subasta.actualizarSubasta(record.Amount, record.UserId, auctionID);
ts.Complete();
}
}
else
{
if (record.Amount > Convert.ToDecimal((itemSubasta.GetType().GetProperty("HighestBid").GetValue(itemSubasta, null)).ToString()))
{
using (TransactionScope ts = new TransactionScope())
{
registro.agregarPuja(record);
subasta.actualizarSubasta(record.Amount, record.UserId, auctionID);
ts.Complete();
}
}
else
{
throw new Exception("La oferta debe ser mayor que la oferta actual");
}
}
}
else
{
throw new Exception("No se le permite ofertar en esta subasta");
}
}
else
{
throw new Exception("La cantidad ingresada debe ser un numero decimal mayor a 0 y menor que 1, 000, 000");
}
}
else
{
throw new Exception("La subasta ha finalizado");
}
}
/**
* 购买BPEC
*/
public static bool buyBPEC(byte[] owner, BigInteger tokenId)
{
bool bol = false;
if (Runtime.CheckWitness(owner) && owner.Length == 20)
{
object[] objInfo = getAuctionRecord(tokenId);
if (objInfo.Length > 0)
{
AuctionRecord record = (AuctionRecord)(object)objInfo;
if (record.recordState == 0)
{
UserInfo buyUser = getUserInfo(owner);
if (buyUser.balance >= record.sellPrice)
{
object[] args = new object[3] {
AuctionOwner, owner, record.value
};
bool res = (bool)bpecCall("transfer", args);
if (res)
{
record.recordState = 1;
// 修改记录
_putAuctionRecord(record.tokenId.AsByteArray(), record);
//手续费
BigInteger fee = record.sellPrice * 3 / 100;
var money = record.sellPrice - fee;
_subTotal(fee);
//修改买家
buyUser.balance -= record.sellPrice;
var keyWho = new byte[] { 0x11 }.Concat(owner);
Storage.Put(Storage.CurrentContext, keyWho, Helper.Serialize(buyUser));
//修改卖家
UserInfo sellUser = getUserInfo(record.seller);
sellUser.balance += money;
keyWho = new byte[] { 0x11 }.Concat(record.seller);
Storage.Put(Storage.CurrentContext, keyWho, Helper.Serialize(sellUser));
BuyBPECed(1, owner, record.tokenId);
bol = true;
}
}
}
}
}
// notify
if (bol == false)
{
BuyBPECed(0, owner, tokenId);
}
return(bol);
}
public void CreateRecord(string username, string reference, string action)
{
var newRecord = new AuctionRecord
{
Action = action,
Reference = reference,
User = new User {
Username = username
}
};
_auctionRecords.Add(newRecord);
}
public void CreateRecord(string username, string reference, string action, string details)
{
var user = GetUser(username);
var auctionRecord = new AuctionRecord
{
Action = action,
Details = details,
Reference = reference,
User = user
};
_context.AuctionRecords.Add(auctionRecord);
_context.SaveChanges();
}
public void suma()
{
ScriptManager.RegisterStartupScript(this, typeof(Page), "calculateTotal", "calculateTotal()", true);
AuctionRecord record = new AuctionRecord();
List <AuctionRecord> lstRecord = new List <AuctionRecord>();
lstRecord = (List <AuctionRecord>)ViewState["lstRecord"];
decimal suma = 0;
foreach (AuctionRecord rec in lstRecord)
{
suma = suma + rec.Amount;
}
txtSuma.Text = suma.ToString();
}
/**
* 存储拍卖成交记录
*/
private static void _putAuctionRecord(byte[] tokenId, AuctionRecord info)
{
/*
* // 用一个老式实现法
* byte[] auctionInfo = _ByteLen(info.seller.Length).Concat(info.seller);
* auctionInfo = _ByteLen(info.buyer.Length).Concat(info.buyer);
* auctionInfo = auctionInfo.Concat(_ByteLen(info.sellPrice.AsByteArray().Length)).Concat(info.sellPrice.AsByteArray());
* auctionInfo = auctionInfo.Concat(_ByteLen(info.sellTime.AsByteArray().Length)).Concat(info.sellTime.AsByteArray());
*/
// 新式实现方法只要一行
byte[] txInfo = Helper.Serialize(info);
var key = "buy".AsByteArray().Concat(tokenId);
Storage.Put(Storage.CurrentContext, key, txInfo);
}
protected void btnGuardar_Click(object sender, EventArgs e)
{
decimal ofertaAcutual = Convert.ToDecimal(txtOfertaActual.Text);
decimal oferta = Convert.ToDecimal(txtOfertar.Text);
DateTime fechaInicio;
DateTime fechaFinal;
DateTime FechaActual;
FechaActual = DateTime.Now;
fechaInicio = Convert.ToDateTime(txtInicio.Text);
fechaFinal = Convert.ToDateTime(txtFin.Text);
if (fechaInicio <= FechaActual && fechaFinal >= FechaActual)
{
if (ofertaAcutual < oferta)
{
SubastaBLL bl = new SubastaBLL();
Auction subasta = new Auction();
AuctionRecord record = new AuctionRecord();
subasta.AuctionId = Convert.ToInt32(txtNumSubasta.Text);
subasta.ProductName = txtNombre.Text;
subasta.Description = txtDescripcion.Text;
subasta.StartDate = Convert.ToDateTime(txtInicio.Text);
subasta.EndDate = Convert.ToDateTime(txtFin.Text);
subasta.HighestBid = Convert.ToDecimal(txtOfertar.Text);
User user = new User();
user = (User)Session["User"];
subasta.Winner = user.UserId;
bl.UpdateSubasta(subasta);
record.AuctionId = Convert.ToInt32(txtNumSubasta.Text);
record.UserId = user.UserId;
record.Amount = Convert.ToDecimal(txtOfertar.Text);
record.BidDate = Convert.ToDateTime(FechaActual);
bl.AgregarAuctionRecord(record);
ClientScript.RegisterStartupScript(this.GetType(), "alerta", "alert('La oferta se realizo corretamente')", true);
}
else
{
ClientScript.RegisterStartupScript(this.GetType(), "alerta", "alert('La oferta debe ser mayor a la actual')", true);
}
}
else
{
ClientScript.RegisterStartupScript(this.GetType(), "alerta", "alert('Error, La subasta Estara disponible en las fechas marcadas')", true);
}
}
public void HacerOferta()
{
AuctionRecord ofertaParam = new AuctionRecord();
AuctionRecordBLL ofertaBLL = new AuctionRecordBLL();
ofertaParam.AuctionId = int.Parse(lblIdSubasta.Text);
ofertaParam.UserId = (int)Session["UserId"];
ofertaParam.Amount = Convert.ToDecimal(txtOferta.Text);
ofertaParam.BidDate = DateTime.Now;
try
{
ofertaBLL.OfertaMasAlta(ofertaParam);
}
catch (Exception ex)
{
Page.ClientScript.RegisterStartupScript(this.GetType(), "Alta", "alert ('" + ex.Message + "')", true);
}
}
public void OfertaMasAlta(AuctionRecord ofertaParam)
{
AuctionRecordDAL ofertaHistorial = new AuctionRecordDAL();
Auction oferta;
AuctionBLL subastaBLL = new AuctionBLL();
int idSubasta = ofertaParam.AuctionId;
oferta = subastaBLL.CargarSubasta(idSubasta);
if (oferta.UserId == ofertaParam.UserId)
{
throw new Exception("No se le permite ofertar en esta subasta");
}
else
{
if (ofertaParam.Amount <= oferta.HighestBid)
{
throw new Exception("La cantidad ingresada debe ser mayor que la oferta actual");
}
else
{
if (oferta.EndDate < ofertaParam.BidDate)
{
throw new Exception("La subasta ha finalizado");
}
else
{
if (ofertaParam.Amount > 1000000)
{
throw new Exception("La cantidad debe ser menor a 1,000,000");
}
else
{
ofertaHistorial.nuevaOferta(ofertaParam);
ofertaHistorial.OfertaMasAlta(ofertaParam);
}
}
}
}
}
/**
* 拍卖出售BPEC
*/
public static bool saleBPEC(byte[] owner, BigInteger price, BigInteger value)
{
bool bol = false;
var recordKey = Storage.Get(Storage.CurrentContext, "AuctionRecord").AsBigInteger();
if (Runtime.CheckWitness(owner) && owner.Length == 20 && value > 0)
{
object[] args = new object[3] {
owner, AuctionOwner, value
};
bool res = (bool)bpecCall("transfer", args);
if (res)
{
//
var nowtime = Blockchain.GetHeader(Blockchain.GetHeight()).Timestamp;
AuctionRecord record = new AuctionRecord();
record.tokenId += 1;
record.seller = owner;
record.sellTime = nowtime;
record.sellPrice = price;
record.value = value;
record.recordState = 0;
// 入库记录
_putAuctionRecord(record.tokenId.AsByteArray(), record);
//保存主键
Storage.Put(Storage.CurrentContext, "AuctionRecord", record.tokenId.AsByteArray());
SaleBPECed(1, owner, value, record.tokenId, nowtime);
bol = true;
}
}
// notify
if (bol == false)
{
SaleBPECed(0, owner, value, recordKey, 0);
}
return(bol);
}
public async Task <IActionResult> PostAuctionRecord([FromBody] AuctionRecord auctionRecord)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var auction = await db.Auctions.SingleOrDefaultAsync(a => a.Id == auctionRecord.Gid);
if (auction == null)
{
return(NotFound());
}
if (auction.StartTime > DateTime.Now)
{
ThrowHttpResponseException("拍卖未开始");
}
if (auction.EndTime <= DateTime.Now)
{
if (auction.EndStatus == EndStatus.进行中)
{
if (auction.NowPrice > 0 && auction.Mid > 0)
{
auction.EndStatus = EndStatus.成交;
}
else
{
auction.EndStatus = EndStatus.流拍;
}
await db.SaveChangesAsync();
}
ThrowHttpResponseException("拍卖已结束");
}
if (auction.NowPrice >= auctionRecord.Money)
{
ThrowHttpResponseException("已经有人出价比你高，请重新出价");
}
if (auctionRecord.Money < auction.NowPrice + auction.StepSize)
{
ThrowHttpResponseException("出价少于步长");
}
auction.EndStatus = EndStatus.进行中;
auction.BidCount += 1;
auction.Mid = auctionRecord.Mid;
auction.NowPrice = auctionRecord.Money;
db.AuctionRecords.Add(auctionRecord);
try
{
await db.SaveChangesAsync();
}
catch (DbUpdateException)
{
if (AuctionRecordExists(auctionRecord.Id))
{
return(new StatusCodeResult(StatusCodes.Status409Conflict));
}
else
{
throw;
}
}
var member = await db.Members.SingleOrDefaultAsync(m => m.Id == auctionRecord.Mid);
string msg = $"{member.NickName} 拍品编号 {auction.Bidnb} 出价 ￥{auctionRecord.Money} 有效";
RefreshAuctionRecordsWithRoom("room" + auction.Id, msg);
RefreshAuctions(msg);
return(Ok());
}
/**
* 购买拍卖克隆
*/
public static bool cloneOnAuction(byte[] sender, BigInteger motherGlaId, BigInteger fatherGlaId)
{
if (!Runtime.CheckWitness(sender))
{
//没有签名
return(false);
}
object[] objFatherInfo = _getAuctionInfo(fatherGlaId.AsByteArray());
if (objFatherInfo.Length > 0)
{
AuctionInfo fatherInfo = (AuctionInfo)(object)objFatherInfo;
byte[] owner = fatherInfo.owner;
if (fatherInfo.sellType == 1)
{
var nowtime = Blockchain.GetHeader(Blockchain.GetHeight()).Timestamp;
var secondPass = (nowtime - fatherInfo.sellTime) / 1000;
BigInteger senderMoney = Storage.Get(Storage.CurrentContext, sender).AsBigInteger();
BigInteger curBuyPrice = computeCurrentPrice(fatherInfo.beginPrice, fatherInfo.endPrice, fatherInfo.duration, secondPass);
var fee = curBuyPrice * 30 / 1000;
if (fee < TX_MIN_FEE)
{
fee = TX_MIN_FEE;
}
if (curBuyPrice < fee)
{
curBuyPrice = fee;
}
if (senderMoney < curBuyPrice)
{
// 钱不够
return(false);
}
// 开始克隆
object[] args = new object[3] {
sender, motherGlaId, fatherGlaId
};
bool res = (bool)nftCall("bidOnClone_app", args);
if (!res)
{
return(false);
}
// 扣钱
Storage.Put(Storage.CurrentContext, sender, senderMoney - curBuyPrice);
// 扣除手续费
curBuyPrice -= fee;
_subTotal(fee);
// 钱记在卖家名下
BigInteger nMoney = 0;
byte[] salerMoney = Storage.Get(Storage.CurrentContext, owner);
if (salerMoney.Length > 0)
{
nMoney = salerMoney.AsBigInteger();
}
nMoney = nMoney + curBuyPrice;
Storage.Put(Storage.CurrentContext, owner, nMoney);
//// 不要删除拍卖记录
//Storage.Delete(Storage.CurrentContext, tokenId.AsByteArray());
// 成交记录
AuctionRecord record = new AuctionRecord();
record.tokenId = fatherGlaId;
record.seller = owner;
record.buyer = sender;
record.sellType = 1;
record.sellPrice = curBuyPrice + fee;
record.sellTime = nowtime;
_putAuctionRecord(fatherGlaId.AsByteArray(), record);
// notify
AuctionClone(sender, motherGlaId, fatherGlaId, curBuyPrice, fee, nowtime);
return(true);
}
}
return(false);
}
public void AgregarAuctionRecord(AuctionRecord record)
{
SubastaDAL dal = new SubastaDAL();
dal.AgregarAuctionRecord(record);
}
/**
* 从拍卖场购买,将钱划入合约名下，将物品给买家
*/
public static bool buyOnAuction(byte[] sender, BigInteger tokenId)
{
if (!Runtime.CheckWitness(sender))
{
//没有签名
return(false);
}
object[] objInfo = _getAuctionInfo(tokenId.AsByteArray());
if (objInfo.Length > 0)
{
AuctionInfo info = (AuctionInfo)(object)objInfo;
byte[] owner = info.owner;
var nowtime = Blockchain.GetHeader(Blockchain.GetHeight()).Timestamp;
var secondPass = (nowtime - info.sellTime) / 1000;
BigInteger senderMoney = Storage.Get(Storage.CurrentContext, sender).AsBigInteger();
BigInteger curBuyPrice = computeCurrentPrice(info.beginPrice, info.endPrice, info.duration, secondPass);
var fee = curBuyPrice * 30 / 1000;
if (fee < TX_MIN_FEE)
{
fee = TX_MIN_FEE;
}
if (curBuyPrice < fee)
{
curBuyPrice = fee;
}
if (senderMoney < curBuyPrice)
{
// 钱不够
return(false);
}
// 首先转移物品
object[] args = new object[3] {
ExecutionEngine.ExecutingScriptHash, sender, tokenId
};
bool res = (bool)nftCall("transfer_app", args);
if (!res)
{
return(false);
}
// 扣钱
Storage.Put(Storage.CurrentContext, sender, senderMoney - curBuyPrice);
// 扣除手续费
BigInteger sellPrice = curBuyPrice - fee;
_subTotal(fee);
// 钱记在卖家名下
BigInteger nMoney = 0;
byte[] salerMoney = Storage.Get(Storage.CurrentContext, owner);
if (salerMoney.Length > 0)
{
nMoney = salerMoney.AsBigInteger();
}
nMoney = nMoney + sellPrice;
Storage.Put(Storage.CurrentContext, owner, nMoney);
// 删除拍卖记录
Storage.Delete(Storage.CurrentContext, tokenId.AsByteArray());
// 成交记录
AuctionRecord record = new AuctionRecord();
record.tokenId = tokenId;
record.seller = owner;
record.buyer = sender;
record.sellType = 0;
record.sellPrice = curBuyPrice;
record.sellTime = nowtime;
_putAuctionRecord(tokenId.AsByteArray(), record);
if (owner == ContractOwner)
{
Gene0Record gene0Record;
byte[] v = (byte[])Storage.Get(Storage.CurrentContext, "gene0Record");
if (v.Length == 0)
{
gene0Record = new Gene0Record();
}
else
{
object[] infoRec = (object[])Helper.Deserialize(v);
gene0Record = (Gene0Record)(object)infoRec;
}
int idx = (int)gene0Record.totalSellCount % 5;
if (idx == 0)
{
gene0Record.lastPrice0 = curBuyPrice;
}
else if (idx == 1)
{
gene0Record.lastPrice1 = curBuyPrice;
}
else if (idx == 2)
{
gene0Record.lastPrice1 = curBuyPrice;
}
else if (idx == 3)
{
gene0Record.lastPrice1 = curBuyPrice;
}
else if (idx == 4)
{
gene0Record.lastPrice1 = curBuyPrice;
}
gene0Record.totalSellCount += 1;
//
byte[] infoRec2 = Helper.Serialize(gene0Record);
Storage.Put(Storage.CurrentContext, "gene0Record", infoRec2);
}
// notify
AuctionBuy(sender, tokenId, curBuyPrice, fee, nowtime);
return(true);
}
return(false);
}
