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mint.gno

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 1package guardians
 2
 3import (
 4	"chain"
 5	"chain/runtime/unsafe"
 6	"time"
 7	"gno.land/p/nt/ufmt/v0"
 8)
 9
10// Mint preserves the pilot's one-button, free-first split. Each allowance is
11// checked independently and exact payment/forwarding is atomic with minting.
12func Mint(cur realm, freeQuantity, paidQuantity, allowance int, unitPrice int64, proof string) {
13	if !cur.Previous().IsUserCall() {
14		panic("guardians: only direct user calls can mint")
15	}
16	if freeQuantity < 0 || freeQuantity > 1 || paidQuantity < 0 || paidQuantity > maxPublicMintBatch {
17		panic("guardians: invalid free/paid quantity")
18	}
19	assertMintQuantity(freeQuantity + paidQuantity)
20	caller := cur.Previous().Address()
21	now := time.Now().Unix()
22	if freeQuantity > 0 {
23		if !allowlistSaleOpenAt(now) {
24			panic("guardians: allowlist sale is not active")
25		}
26		if allowance != 1 || unitPrice != 0 || saleConfig.allowlistPrice != 0 || !VerifyAllowlist(caller, allowance, unitPrice, proof) {
27			panic("guardians: invalid free-mint proof")
28		}
29		assertSaleMint(freeQuantity, AllowlistMinted(caller), saleConfig.allowlistLimit)
30	} else if allowance != 0 || unitPrice != 0 || proof != "" {
31		panic("guardians: unexpected free-mint arguments")
32	}
33	if paidQuantity > 0 {
34		if !publicSaleOpenAt(now) {
35			panic("guardians: public sale is not active")
36		}
37		assertSaleMint(paidQuantity, PublicMinted(caller), saleConfig.publicLimit)
38	}
39	required := int64(0)
40	if paidQuantity > 0 {
41		required = requiredPayment(saleConfig.publicPrice, paidQuantity)
42	}
43	sent := unsafe.OriginSend()
44	assertExactPayment(sent, required)
45	mintAllocatedTokens(caller, freeQuantity, paidQuantity)
46	if freeQuantity > 0 {
47		allowlistMintedByWallet.Set(caller.String(), AllowlistMinted(caller)+freeQuantity)
48	}
49	if paidQuantity > 0 {
50		publicMintedByWallet.Set(caller.String(), PublicMinted(caller)+paidQuantity)
51	}
52	forwardPayment(cur, sent)
53	chain.Emit("Mint", "minter", caller.String(), "free", ufmt.Sprintf("%d", freeQuantity), "paid", ufmt.Sprintf("%d", paidQuantity), "payment", ufmt.Sprintf("%d", required))
54}