// 根据其他账户的售卖挂单，进行交易
private static bool CancleSale(byte[] from, BigInteger sid)
{
//Check parameters
if (from.Length != 20)
{
throw new InvalidOperationException("The parameters from and to SHOULD be 20-byte addresses.");
}
if (!Runtime.CheckWitness(from)) //0.2
{
return(false);
}
StorageMap saleMul = Storage.CurrentContext.CreateMap(nameof(saleMul));
byte[] smFrom = saleMul.Get(from);
// 如果from名下没有任何售卖单返回错误
if (smFrom == null || smFrom.Length == 0)
{
CancleMulSaleErr(from, sid, 10013);
return(false);
}
Map <BigInteger, SaleMulInfo> sitems = Helper.Deserialize(smFrom) as Map <BigInteger, SaleMulInfo>;
// 如果from名下没有该单号返回错误
if (!sitems.HasKey(sid))
{
CancleMulSaleErr(from, sid, 10013);
return(false);
}
SaleMulInfo s = sitems[sid];
object[] objs = new object[12];
objs[0] = ExecutionEngine.ExecutingScriptHash;
objs[1] = from;
objs[2] = s.count;
for (int i = 0; i < s.count; i++)
{
objs[i + 3] = s.ids[i];
}
// -----------调用EasyNFT 转移资产
if (NFTtransfer("transfer", objs) == false)
{
throw new Exception("NFTtransfer Fail！");
}
//----------
// 删除该挂单
sitems.Remove(sid);
saleMul.Put(from, Helper.Serialize(sitems));
CancleMulSaled(from, sid);
return(true);
}
// 根据其他账户的售卖挂单，进行交易
private static bool BuyFromOther(byte[] saler, byte[] buyer, BigInteger sid)
{
//Check parameters
if (buyer.Length != 20)
{
throw new InvalidOperationException("The parameters from and to SHOULD be 20-byte addresses.");
}
if (!IsPayable(buyer))
{
return(false);
}
if (!Runtime.CheckWitness(buyer)) //0.2
{
return(false);
}
StorageMap saleMul = Storage.CurrentContext.CreateMap(nameof(saleMul));
byte[] smFrom = saleMul.Get(saler);
// 如果from名下没有任何售卖单返回错误
if (smFrom == null || smFrom.Length == 0)
{
MarketBuyErr(buyer, sid, 10013);
return(false);
}
Map <BigInteger, SaleMulInfo> sitems = Helper.Deserialize(smFrom) as Map <BigInteger, SaleMulInfo>;
// 如果from名下没有该单号返回错误
if (!sitems.HasKey(sid))
{
MarketBuyErr(buyer, sid, 10013);
return(false);
}
SaleMulInfo s = sitems[sid];
// -----------使用nep5购买
if (Nep5transfer("transfer", new object[] { buyer, saler, s.price }) == false)
{
MarketBuyErr(buyer, sid, 10001);
throw new Exception("NEP5transfer Fail！");
}
//----------
object[] objs = new object[12];
objs[0] = ExecutionEngine.ExecutingScriptHash;
objs[1] = buyer;
objs[2] = s.count;
for (int i = 0; i < s.count; i++)
{
objs[i + 3] = s.ids[i];
}
// -----------调用EasyNFT 转移资产
if (NFTtransfer("transfer", objs) == false)
{
throw new Exception("NFTtransfer Fail！");
}
sitems.Remove(sid);
saleMul.Put(saler, Helper.Serialize(sitems));
NftMarketBuyed(buyer, sid);
return(true);
}
// 对几个资产进行打包,挂单售卖
private static bool MulSale(object[] args)
{
if (args.Length < 3)
{
return(false);
}
byte[] account = (byte[])args[0];
BigInteger price = (BigInteger)args[1];
BigInteger amount = (BigInteger)args[2];
//Check parameters
if (account.Length != 20)
{
throw new InvalidOperationException("The parameters from and to SHOULD be 20-byte addresses.");
}
if (amount <= 0 || amount > 9 || price < 0)
{
throw new InvalidOperationException("The parameter amount MUST be greater than 0.");
}
if (args.Length < 3 + amount)
{
return(false);
}
if (!Runtime.CheckWitness(account)) //0.2
{
return(false);
}
object[] objs = new object[12];
objs[0] = account;
objs[1] = ExecutionEngine.ExecutingScriptHash;
objs[2] = amount;
for (int i = 0; i < amount; i++)
{
objs[3 + i] = args[3 + i];
}
// -----------调用EasyNFT 转移资产
if (NFTtransfer("transfer", objs) == false)
{
MulSaleErr(account, 10015);
throw new Exception("NFTtransfer Fail！");
}
//----------
BigInteger sid = _createSaleID();
SaleMulInfo info = new SaleMulInfo();
info.saleid = sid;
info.price = price;
info.ids = new BigInteger[9];
info.count = amount;
for (int i = 0; i < amount; i++)
{
info.ids[i] = (BigInteger)args[3 + i];
}
// 将售卖信息插入售卖表saleMul 中
StorageMap saleMul = Storage.CurrentContext.CreateMap(nameof(saleMul));
byte[] smFrom = saleMul.Get(account);
Map <BigInteger, SaleMulInfo> items;
if (smFrom == null || smFrom.Length == 0)
{
items = new Map <BigInteger, SaleMulInfo>();
}
else
{
items = Helper.Deserialize(smFrom) as Map <BigInteger, SaleMulInfo>;
}
items[sid] = info;
saleMul.Put(account, Helper.Serialize(items));
MulSaled(account, info);
return(true);
}
