public MarketAuction[] GetAuctions()
{
var ids = _auctionIDs.All <string>();
var auctions = new MarketAuction[ids.Length];
for (int i = 0; i < auctions.Length; i++)
{
auctions[i] = _auctionMap.Get <string, MarketAuction>(ids[i]);
}
return(auctions);
}
public void SellToken(Address from, string baseSymbol, string quoteSymbol, BigInteger tokenID, BigInteger price, Timestamp endDate)
{
Runtime.Expect(Runtime.IsWitness(from), "invalid witness");
Runtime.Expect(endDate > Runtime.Time, "invalid end date");
var maxAllowedDate = Runtime.Time + TimeSpan.FromDays(30);
Runtime.Expect(endDate <= maxAllowedDate, "end date is too distant");
Runtime.Expect(Runtime.TokenExists(quoteSymbol), "invalid quote token");
var quoteToken = Runtime.GetToken(quoteSymbol);
Runtime.Expect(quoteToken.Flags.HasFlag(TokenFlags.Fungible), "quote token must be fungible");
Runtime.Expect(Runtime.TokenExists(baseSymbol), "invalid base token");
var baseToken = Runtime.GetToken(baseSymbol);
Runtime.Expect(!baseToken.Flags.HasFlag(TokenFlags.Fungible), "base token must be non-fungible");
var nft = Runtime.ReadToken(baseSymbol, tokenID);
Runtime.Expect(nft.CurrentChain == Runtime.Chain.Name, "token not currently in this chain");
Runtime.Expect(nft.CurrentOwner == from, "invalid owner");
Runtime.Expect(Runtime.TransferToken(baseToken.Symbol, from, this.Address, tokenID), "transfer failed");
var auction = new MarketAuction(from, Runtime.Time, endDate, baseSymbol, quoteSymbol, tokenID, price);
var auctionID = baseSymbol + "." + tokenID;
_auctionMap.Set(auctionID, auction);
_auctionIDs.Add(auctionID);
Runtime.Notify(EventKind.OrderCreated, from, new MarketEventData()
{
ID = tokenID, BaseSymbol = baseSymbol, QuoteSymbol = quoteSymbol, Price = price
});
Runtime.Notify(EventKind.TokenSend, from, new TokenEventData()
{
chainAddress = this.Address, symbol = auction.BaseSymbol, value = tokenID
});
}
