wrap_unwrap.gno

 1package v1
 2
 3import (
 4	"chain"
 5	"chain/banker"
 6	"chain/runtime"
 7
 8	"gno.land/r/gnoland/wugnot"
 9
10	"gno.land/p/nt/ufmt"
11)
12
13// wrapWithTransfer wraps GNOT into WUGNOT and transfers it to the specified address.
14func wrapWithTransfer(toAddress address, amount int64) error {
15	if amount <= 0 {
16		return nil
17	}
18
19	if amount < UGNOT_MIN_DEPOSIT_TO_WRAP {
20		return makeErrorWithDetails(
21			errWugnotMinimum,
22			ufmt.Sprintf("amount(%d) < minimum(%d)", amount, UGNOT_MIN_DEPOSIT_TO_WRAP),
23		)
24	}
25
26	// transfer ugnot from fromAddress to current realm
27	currentRealmAddr := runtime.CurrentRealm().Address()
28
29	sentCoins := banker.OriginSend()
30	ugnotSent := sentCoins.AmountOf(GNOT_DENOM)
31	if ugnotSent != amount {
32		return makeErrorWithDetails(
33			errInvalidInput,
34			ufmt.Sprintf("user(%s) sent ugnot(%d) amount not equal to rewardAmount(%d)", toAddress.String(), ugnotSent, amount),
35		)
36	}
37
38	// wrap ugnot to wugnot
39	wugnotAddr := chain.PackageAddress(WUGNOT_PATH)
40	banker_ := banker.NewBanker(banker.BankerTypeRealmSend)
41	banker_.SendCoins(currentRealmAddr, wugnotAddr, sentCoins)
42	wugnot.Deposit(cross)
43
44	// if to address is not current realm, transfer wugnot to to address
45	if toAddress != currentRealmAddr {
46		wugnot.Transfer(cross, toAddress, amount)
47	}
48
49	return nil
50}
51
52// unwrapWithTransfer unwraps WUGNOT to GNOT and sends it to the specified address.
53func unwrapWithTransfer(toAddress address, wugnotAmount int64) error {
54	if wugnotAmount == 0 {
55		return nil
56	}
57
58	wugnot.Withdraw(cross, wugnotAmount)
59
60	currentRealmAddr := runtime.CurrentRealm().Address()
61	banker_ := banker.NewBanker(banker.BankerTypeRealmSend)
62	banker_.SendCoins(currentRealmAddr, toAddress, chain.Coins{{GNOT_DENOM, int64(wugnotAmount)}})
63
64	return nil
65}
66
67// unwrapWithTransferFrom transfers WUGNOT from a source address, unwraps it to GNOT, and sends it to the target.
68func unwrapWithTransferFrom(fromAddress, toAddress address, wugnotAmount int64) error {
69	if wugnotAmount == 0 {
70		return nil
71	}
72
73	currentRealmAddr := runtime.CurrentRealm().Address()
74	if fromAddress != currentRealmAddr {
75		wugnot.TransferFrom(cross, fromAddress, currentRealmAddr, wugnotAmount)
76	}
77
78	wugnot.Withdraw(cross, wugnotAmount)
79
80	banker_ := banker.NewBanker(banker.BankerTypeRealmSend)
81	banker_.SendCoins(currentRealmAddr, toAddress, chain.Coins{{GNOT_DENOM, int64(wugnotAmount)}})
82
83	return nil
84}