gno.land/r/g1n4pl5uc4yt5r96m9w6fmdznx3x0jyg8l6arhmt/bazaar/gcol2⧉

1package gcol223import (4	"chain"5	"errors"6	"strconv"7	"strings"89	"gno.land/p/nt/avl/v0"10	"gno.land/p/nt/grc721/metadata/v0"11	"gno.land/p/nt/grc721/v0"12	"gno.land/p/nt/seqid/v0"13	"gno.land/r/g1n4pl5uc4yt5r96m9w6fmdznx3x0jyg8l6arhmt/bazaar/gpush"14)1516// Holder perk for Bazaar: col.Buy subtracts HolderDiscount(trader) from17// factory.ProtocolBps() (highest FeeDiscount in that wallet). Every Genesis NFT18// also has ShareWeight = FeeDiscount for the 11% protocol-fee pool (claim later).1920const (21	maxImageLen    = 20022	maxDiscountBps = int64(150)23	maxSupply      = 111124	supplyCommon   = 66625	supplyUncommon = 22226	supplyRare     = 11127	supplyEpic     = 6628	supplyLegend   = 3329	supplyMythic   = 1330	defaultImage   = "https://bazaar-gno.vercel.app/gnomies.png"31	shareBps       = int64(1100) // 11% of protocol take on Buy32)3334type item struct {35	id          int36	owner       address37	name        string38	image       string39	rarity      string40	discountBps int6441}4243var (44	token    *grc721.Token45	ledger   *grc721.PrivateLedger46	metaView *metadata.Metadata47	metaLed  *metadata.Ledger48	tokenSeq seqid.ID49	items    avl.Tree50	inited         bool51	creator        address52	nextID         int53	mintedCommon   int54	mintedUncommon int55	mintedRare     int56	mintedEpic     int57	mintedLegend   int58	mintedMythic   int59)6061func Init(cur realm, name, symbol string) {62	if !cur.IsCurrent() {63		panic("genesis: spoofed realm")64	}65	if !cur.Previous().IsUserCall() {66		panic("genesis: EOA only")67	}68	if inited {69		panic("genesis: already initialized")70	}71	tok, led := grc721.NewToken(name, symbol, tokenSeq.Next(), cur)72	token = tok73	ledger = led74	metaView, metaLed = metadata.NewMetadata(led)75	creator = cur.Previous().Address()76	inited = true77	chain.Emit("Init", "creator", creator.String())78}7980func Mint(cur realm, name, image, rarity string, discountBps int64) int {81	caller := requireUser(cur)82	if caller != creator {83		panic("genesis: not creator")84	}85	if name == "" || len(name) > grc721.MaxNameLen {86		panic("genesis: name")87	}88	if image == "" {89		image = defaultImage90	}91	if len(image) > maxImageLen {92		panic("genesis: image")93	}94	d := discountBps95	if d < 0 {96		d = rarityDiscount(rarity)97	}98	if d > maxDiscountBps {99		panic("genesis: discount")100	}101	if nextID >= maxSupply {102		panic("genesis: sold out")103	}104	takeRarity(rarity)105	nextID++106	id := nextID107	tid := grc721.TokenID(strconv.Itoa(id))108	if err := ledger.Mint(caller, tid); err != nil {109		panic("genesis: mint")110	}111	if err := metaLed.SetTokenURI(tid, tokenJSON(name, image, rarity, d)); err != nil {112		panic("genesis: tokenURI")113	}114	if err := metaLed.SetTokenMetadata(tid, metadata.Data{115		Name:        name,116		Description: name,117		Image:       image,118		Attributes: []metadata.Trait{119			{TraitType: "Rarity", Value: rarity},120			{TraitType: "FeeDiscount", Value: strconv.FormatInt(d, 10)},121			{TraitType: "ShareWeight", Value: strconv.FormatInt(d, 10)},122		},123	}); err != nil {124		panic("genesis: metadata")125	}126	items.Set(strconv.Itoa(id), &item{id: id, owner: caller, name: name, image: image, rarity: rarity, discountBps: d})127	gpush.Sync(cross(cur), caller.String(), HolderDiscount(caller.String()))128	chain.Emit("Mint", "id", strconv.Itoa(id), "discount", strconv.FormatInt(d, 10))129	return id130}131132// HolderDiscount is the best FeeDiscount among Genesis NFTs currently in `owner`'s wallet (not listed/escrowed).133func HolderDiscount(owner string) int64 {134	if !inited {135		return 0136	}137	who := address(owner)138	if !who.IsValid() {139		return 0140	}141	var best int64142	items.Iterate("", "", func(_ string, value any) bool {143		it := value.(*item)144		if it.owner == who && it.discountBps > best {145			best = it.discountBps146		}147		return false148	})149	return best150}151152// ShareWeight sums FeeDiscount of every Genesis NFT in `owner`'s wallet (not listed/escrowed).153func ShareWeight(owner string) int64 {154	if !inited {155		return 0156	}157	who := address(owner)158	if !who.IsValid() {159		return 0160	}161	var sum int64162	items.Iterate("", "", func(_ string, value any) bool {163		it := value.(*item)164		if it.owner == who {165			sum += it.discountBps166		}167		return false168	})169	return sum170}171172func DiscountOf(tid string) int64 {173	return mustItem(parseTid(tid)).discountBps174}175176func ShareBps() int64 {177	return shareBps178}179180func MaxSupply() int {181	return maxSupply182}183184func TotalSupply() int {185	requireInit()186	return nextID187}188189func SupplyOf(rarity string) int {190	switch canonRarity(rarity) {191	case "mythic":192		return supplyMythic193	case "legendary":194		return supplyLegend195	case "epic":196		return supplyEpic197	case "rare":198		return supplyRare199	case "uncommon":200		return supplyUncommon201	default:202		return supplyCommon203	}204}205206func MintedOf(rarity string) int {207	requireInit()208	switch canonRarity(rarity) {209	case "mythic":210		return mintedMythic211	case "legendary":212		return mintedLegend213	case "epic":214		return mintedEpic215	case "rare":216		return mintedRare217	case "uncommon":218		return mintedUncommon219	default:220		return mintedCommon221	}222}223224func Name() string {225	requireInit()226	return token.GetName()227}228229func Symbol() string {230	requireInit()231	return token.GetSymbol()232}233234func BalanceOf(owner string) int64 {235	requireInit()236	who := address(owner)237	if !who.IsValid() {238		return 0239	}240	n, err := token.BalanceOf(who)241	if err != nil {242		return 0243	}244	return n245}246247func OwnerOf(tid string) (address, error) {248	requireInit()249	id, err := strconv.Atoi(tid)250	if err != nil || id < 1 {251		return address(""), errors.New("genesis: tid")252	}253	v := items.Get(strconv.Itoa(id))254	if v == nil {255		return address(""), errors.New("genesis: unknown item")256	}257	return v.(*item).owner, nil258}259260func TokenURI(tid string) string {261	u, err := metaView.TokenURI(grc721.TokenID(tid))262	if err != nil || u == "" {263		it := mustItem(parseTid(tid))264		return tokenJSON(it.name, it.image, it.rarity, it.discountBps)265	}266	return u267}268269func TokensOf(owner string) string {270	requireInit()271	who := address(owner)272	if !who.IsValid() {273		return ""274	}275	out := ""276	items.Iterate("", "", func(_ string, value any) bool {277		it := value.(*item)278		if it.owner != who {279			return false280		}281		if out != "" {282			out += ","283		}284		out += strconv.Itoa(it.id)285		return false286	})287	return out288}289290func TransferFrom(cur realm, from, to, tid string) {291	caller := requireUser(cur)292	id := parseTid(tid)293	src := address(from)294	dst := address(to)295	if !src.IsValid() || !dst.IsValid() {296		panic("genesis: addr")297	}298	if err := ledger.TransferFrom(caller, src, dst, grc721.TokenID(tid)); err != nil {299		panic("genesis: transfer")300	}301	it := mustItem(id)302	it.owner = dst303	items.Set(strconv.Itoa(id), it)304	gpush.Sync(cross(cur), from, HolderDiscount(from))305	gpush.Sync(cross(cur), to, HolderDiscount(to))306}307308func canonRarity(rarity string) string {309	switch strings.ToLower(strings.TrimSpace(rarity)) {310	case "mythic":311		return "mythic"312	case "legendary":313		return "legendary"314	case "epic":315		return "epic"316	case "rare":317		return "rare"318	case "uncommon":319		return "uncommon"320	default:321		return "common"322	}323}324325func takeRarity(rarity string) {326	switch canonRarity(rarity) {327	case "mythic":328		if mintedMythic >= supplyMythic {329			panic("genesis: rarity full")330		}331		mintedMythic++332	case "legendary":333		if mintedLegend >= supplyLegend {334			panic("genesis: rarity full")335		}336		mintedLegend++337	case "epic":338		if mintedEpic >= supplyEpic {339			panic("genesis: rarity full")340		}341		mintedEpic++342	case "rare":343		if mintedRare >= supplyRare {344			panic("genesis: rarity full")345		}346		mintedRare++347	case "uncommon":348		if mintedUncommon >= supplyUncommon {349			panic("genesis: rarity full")350		}351		mintedUncommon++352	default:353		if mintedCommon >= supplyCommon {354			panic("genesis: rarity full")355		}356		mintedCommon++357	}358}359360func rarityDiscount(rarity string) int64 {361	switch canonRarity(rarity) {362	case "mythic":363		return 150364	case "legendary":365		return 125366	case "epic":367		return 100368	case "rare":369		return 75370	case "uncommon":371		return 50372	default:373		return 25374	}375}376377func requireInit() {378	if !inited {379		panic("genesis: call Init first")380	}381}382383func requireUser(cur realm) address {384	requireInit()385	if !cur.IsCurrent() {386		panic("genesis: spoofed realm")387	}388	if !cur.Previous().IsUserCall() {389		panic("genesis: EOA only")390	}391	return cur.Previous().Address()392}393394func parseTid(tid string) int {395	id, err := strconv.Atoi(tid)396	if err != nil || id < 1 {397		panic("genesis: tid")398	}399	return id400}401402func mustItem(id int) *item {403	v := items.Get(strconv.Itoa(id))404	if v == nil {405		panic("genesis: unknown item")406	}407	return v.(*item)408}409410func tokenJSON(name, image, rarity string, discount int64) string {411	body := `{"name":` + jsonStr(name) + `,"image":` + jsonStr(image) + `,"attributes":[{"trait_type":"Rarity","value":` + jsonStr(rarity) + `},{"trait_type":"FeeDiscount","value":` + jsonStr(strconv.FormatInt(discount, 10)) + `},{"trait_type":"ShareWeight","value":` + jsonStr(strconv.FormatInt(discount, 10)) + `}]}`412	return "data:application/json;charset=utf-8," + pctURI(body)413}414415func jsonStr(s string) string {416	out := `"`417	for _, r := range s {418		switch r {419		case '"':420			out += `\"`421		case '\\':422			out += `\\`423		default:424			out += string(r)425		}426	}427	return out + `"`428}429430func pctURI(s string) string {431	out := ""432	for i := 0; i < len(s); i++ {433		c := s[i]434		if (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '-' || c == '_' || c == '.' || c == '~' {435			out += string(c)436			continue437		}438		hex := "0123456789ABCDEF"439		out += "%"440		out += string([]byte{hex[c>>4], hex[c&15]})441	}442	return out443}444