sales.gno

 1package gnogle_market2
 2
 3import "chain/runtime"
 4
 5// Sale is one settled trade, kept in a bounded on-chain history.
 6type Sale struct {
 7	collID  string
 8	tokenID string
 9	from    address
10	to      address
11	price   int64
12	kind    string // "buy" | "offer" | "auction"
13	height  int64
14}
15
16var sales []*Sale
17
18func recordSale(collID, tokenID string, from, to address, price int64, kind string) {
19	sales = append(sales, &Sale{collID, tokenID, from, to, price, kind, runtime.ChainHeight()})
20	if len(sales) > 200 {
21		sales = sales[len(sales)-200:]
22	}
23}