admin.gno

 1package gnogle_market
 2
 3import (
 4	"chain"
 5	"strconv"
 6
 7	"gno.land/p/nt/ufmt/v0"
 8)
 9
10// ClaimAdmin assigns the market admin (one-time). Admin controls the platform fee.
11func ClaimAdmin(cur realm) {
12	if admin != zeroAddr {
13		panic("admin already claimed")
14	}
15	admin = cur.Previous().Address()
16	chain.Emit("ClaimAdmin", "admin", admin.String())
17}
18
19// SetFeeBps sets the platform fee on secondary sales (e.g. 250 = 2.5%). Admin only.
20func SetFeeBps(cur realm, bps int64) {
21	assertAdmin(cur)
22	if bps < 0 || bps > maxFeeBps {
23		panic(ufmt.Sprintf("feeBps must be between 0 and %d", maxFeeBps))
24	}
25	feeBps = bps
26	chain.Emit("SetFee", "bps", strconv.FormatInt(bps, 10))
27}
28
29// WithdrawFees sends accrued platform fees to addr. Admin only.
30func WithdrawFees(cur realm, addr address) int64 {
31	assertAdmin(cur)
32	if !addr.IsValid() {
33		panic("invalid address")
34	}
35	amount := feePot
36	if amount <= 0 {
37		return 0
38	}
39	feePot = 0
40	payout(cur, addr, amount)
41	chain.Emit("WithdrawFees", "to", addr.String(), "amount", strconv.FormatInt(amount, 10))
42	return amount
43}
44
45func assertAdmin(cur realm) {
46	if admin == zeroAddr {
47		panic("admin not set; call ClaimAdmin first")
48	}
49	if cur.Previous().Address() != admin {
50		panic("unauthorized: admin only")
51	}
52}
53
54func Admin() address { return admin }
55func FeeBps() int64  { return feeBps }
56func FeePot() int64  { return feePot }