// SPDX-License-Identifier: Unlicense import NonFungibleToken from 0x1d7e57aa55817448 import MetadataViews from 0x1d7e57aa55817448 import StoreFrontViews from 0xa91523e55d4ff81f // TOKEN RUNNERS: Contract responsable for NFT and Collection pub contract StoreFront: NonFungibleToken { // ----------------------------------------------------------------------- // StoreFront contract-level fields. // These contain actual values that are stored in the smart contract. // ----------------------------------------------------------------------- // The total supply that is used to create FNT. // Every time a NFT is created, // totalSupply is incremented by 1 and then is assigned to NFT's ID. pub var totalSupply: UInt64 // The next template ID that is used to create Template. // Every time a Template is created, nextTemplateId is assigned // to the new Template's ID and then is incremented by 1. access(account) var nextTemplateId: UInt64 // The next NFT ID that is used to create NFT. // Every time a NFT is created, nextNFTId is assigned // to the new NFT's ID and then is incremented by 1. access(account) var nextNFTId: UInt64 // Variable size dictionary of Template structs by storefront access(self) var templateDatas: {UInt64: Template} // Variable size dictionary of minted templates structs access(self) var numberMintedByTemplate: {UInt64: UInt64} /// Path where the public capability for the `Collection` is available pub let collectionPublicPath: PublicPath /// Path where the `Collection` is stored pub let collectionStoragePath: StoragePath /// Path where the private capability for the `Collection` is available pub let collectionPrivatePath: PrivatePath /// Event used on create template pub event TemplateCreated(templateId: UInt64) /// Event used on destroy NFT from collection pub event NFTDestroyed(nftId: UInt64) /// Event used on withdraw NFT from collection pub event Withdraw(id: UInt64, from: Address?) /// Event used on deposit NFT to collection pub event Deposit(id: UInt64, to: Address?) /// Event used on mint NFT pub event NFTMinted(nftId: UInt64, edition: UInt64, templateId: UInt64, databaseID: String, hashMetadata: HashMetadata) /// Event used on contract initiation pub event ContractInitialized() /// Event used on reveal process pub event NFTReveal(nftId: UInt64) /// Event used once the NFT is airdropped pub event NFTAirdrop(nftId: UInt64, to: Address?) // ----------------------------------------------------------------------- // StoreFront contract-level Composite Type definitions // ----------------------------------------------------------------------- // These are just *definitions* for Types that this contract // and other accounts can use. These definitions do not contain // actual stored values, but an instance (or object) of one of these Types // can be created by this contract that contains stored values. // ----------------------------------------------------------------------- // Template is a Struct that holds metadata associated with a specific // nft // // NFT resource will all reference a single template as the owner of // its metadata. The templates are publicly accessible, so anyone can // read the metadata associated with a specific NFT ID // pub struct Template { pub let templateId: UInt64 pub let maxEditions: UInt64 pub let creationDate: UInt64 access(contract) let metadata: {String: String} init(metadata: {String: String}, maxEditions: UInt64, creationDate: UInt64) { self.templateId = StoreFront.nextTemplateId self.metadata = metadata self.maxEditions = maxEditions self.creationDate = creationDate emit TemplateCreated(templateId: self.templateId) StoreFront.nextTemplateId = StoreFront.nextTemplateId + UInt64(1) } } pub struct HashMetadata { pub let hash: String pub let start: UInt64 pub let end: UInt64 init(hash: String, start: UInt64, end: UInt64) { self.hash = hash self.start = start self.end = end } } // NFTData is a Struct that holds template's ID and a metadata // pub struct NFTData { pub let templateId: UInt64 pub let edition: UInt64 access(contract) var metadata: {String: String} pub let hashMetadata: HashMetadata init(metadata: {String: String}, templateId: UInt64, edition: UInt64, hashMetadata: HashMetadata) { self.templateId = templateId self.metadata = metadata self.edition = edition self.hashMetadata = hashMetadata } access(account) fun updateMetadata(metadata: {String: String}) { self.metadata = metadata } } // The resource that represents the NFT // pub resource NFT: NonFungibleToken.INFT, MetadataViews.Resolver { pub let id: UInt64 pub let data: NFTData init(edition: UInt64, metadata: {String: String}, templateId: UInt64, databaseID: String, hashMetadata: HashMetadata) { self.id = StoreFront.nextNFTId self.data = NFTData(metadata:metadata, templateId: templateId, edition: edition, hashMetadata: hashMetadata) emit NFTMinted(nftId: self.id, edition: edition, templateId: templateId, databaseID: databaseID, hashMetadata: hashMetadata) StoreFront.nextNFTId = StoreFront.nextNFTId + UInt64(1) } pub fun getViews(): [Type] { return [ Type(), Type(), Type(), Type(), Type(), Type(), Type(), Type(), Type() ] } pub fun resolveView(_ view: Type): AnyStruct? { let metadata = self.data.metadata switch view { case Type(): return MetadataViews.Display( name: metadata["name"]!, description: metadata["description"]!, thumbnail: MetadataViews.IPFSFile( cid: metadata["image"]!, path: nil ) ) case Type(): return StoreFrontViews.StoreFrontDisplay( name: metadata["name"]!, description: metadata["description"]!, thumbnail: MetadataViews.IPFSFile( cid: metadata["image"]!, path: nil ), metadata: metadata ) case Type(): return MetadataViews.Royalties( [] ) case Type(): let editionInfo = MetadataViews.Edition(name: metadata["name"]!, number: self.data.edition, max: nil) let editionList: [MetadataViews.Edition] = [editionInfo] return MetadataViews.Editions( editionList ) case Type(): return MetadataViews.Serial( self.id ) case Type(): return MetadataViews.ExternalURL(metadata["external_url"]!) case Type(): return MetadataViews.NFTCollectionData( storagePath: StoreFront.collectionStoragePath, publicPath: StoreFront.collectionPublicPath, providerPath: /private/storeFrontNFTCollection, publicCollection: Type<&StoreFront.Collection{StoreFront.CollectionPublic}>(), publicLinkedType: Type<&StoreFront.Collection{StoreFront.CollectionPublic,StoreFront.IRevealNFT,NonFungibleToken.CollectionPublic,NonFungibleToken.Receiver,MetadataViews.ResolverCollection}>(), providerLinkedType: Type<&StoreFront.Collection{StoreFront.CollectionPublic,NonFungibleToken.CollectionPublic,NonFungibleToken.Provider,MetadataViews.ResolverCollection}>(), createEmptyCollectionFunction: (fun (): @NonFungibleToken.Collection { return <-StoreFront.createEmptyCollection() }) ) case Type(): let template: Template = StoreFront.getTemplate(templateId: self.data.templateId)! let media = MetadataViews.Media( file: MetadataViews.HTTPFile( url: self.data.metadata["collectionFileUri"]! ), mediaType: self.data.metadata["collectionMediaType"]! ) return MetadataViews.NFTCollectionDisplay( name: metadata["name"]!, description: metadata["description"]!, externalURL: MetadataViews.ExternalURL(template.metadata["externalLink"]!), squareImage: media, bannerImage: media, socials: { "twitter": MetadataViews.ExternalURL(metadata["twitterLink"]!), "discord": MetadataViews.ExternalURL(metadata["discordLink"]!) } ) case Type(): return MetadataViews.dictToTraits(dict: self.data.metadata, excludedNames: []) } return nil } access(account) fun reveal(admin: &Admin, metadata: {String: String}) { self.data.updateMetadata(metadata: metadata) } destroy() { StoreFront.totalSupply = StoreFront.totalSupply - 1 emit NFTDestroyed(nftId: self.id) } } pub resource interface CollectionPublic { pub fun deposit(token: @NonFungibleToken.NFT) pub fun airdrop(token: @NonFungibleToken.NFT) pub fun getIDs(): [UInt64] pub fun borrowNFT(id: UInt64): &NonFungibleToken.NFT pub fun borrow(id: UInt64): &StoreFront.NFT? } pub resource interface IRevealNFT { pub fun revealNFT(id: UInt64, admin: &Admin, metadata: {String: String}) } // Collection is a resource that every user who owns NFTs // will store in their account to manage their NFTS // pub resource Collection: NonFungibleToken.Provider, NonFungibleToken.Receiver, NonFungibleToken.CollectionPublic, CollectionPublic, MetadataViews.ResolverCollection, IRevealNFT { // Dictionary of StarvingChildren conforming tokens // NFT is a resource type with a UInt64 ID field pub var ownedNFTs: @{UInt64: NonFungibleToken.NFT} init() { self.ownedNFTs <- {} } // withdraw removes an StoreFront from the Collection and moves it to the caller // // Parameters: withdrawID: The ID of the NFT // that is to be removed from the Collection // // returns: @NFT the token that was withdrawn pub fun withdraw(withdrawID: UInt64): @NonFungibleToken.NFT { // Remove the nft from the Collection let token <- self.ownedNFTs.remove(key: withdrawID) ?? panic("Cannot withdraw: NFT does not exist in the collection") emit Withdraw(id: token.id, from: self.owner?.address) // Return the withdrawn token return <-token } // deposit takes a StoreFront and adds it to the Collections dictionary // // Paramters: token: the NFT to be deposited in the collection // pub fun deposit(token: @NonFungibleToken.NFT) { let token <- token as! @NFT let id = token.id let oldToken <-self.ownedNFTs[id] <-token if self.owner?.address != nil { emit Deposit(id: id, to: self.owner?.address) } destroy oldToken } // airdrop takes a StoreFront and adds it to the Collections dictionary // // Parameters: token: the NFT to be airdropped in the collection // pub fun airdrop(token: @NonFungibleToken.NFT) { let token <- token as! @NFT let id = token.id let oldToken <-self.ownedNFTs[id] <-token if self.owner?.address != nil { emit NFTAirdrop(nftId: id, to: self.owner?.address) } destroy oldToken } // getIDs returns an array of the IDs that are in the Collection pub fun getIDs(): [UInt64] { return self.ownedNFTs.keys } // borrow Returns a borrowed reference to a StoreFront in the Collection // so that the caller can read its ID // // Parameters: id: The ID of the NFT to get the reference for // // Returns: A reference to the NFT // pub fun borrow(id: UInt64): &StoreFront.NFT? { if self.ownedNFTs[id] != nil { let ref = (&self.ownedNFTs[id] as auth &NonFungibleToken.NFT?)! return ref as! &StoreFront.NFT } else { return nil } } pub fun borrowNFT(id: UInt64): &NonFungibleToken.NFT { return (&self.ownedNFTs[id] as &NonFungibleToken.NFT?)! } pub fun borrowViewResolver(id: UInt64): &{MetadataViews.Resolver} { let nft = (&self.ownedNFTs[id] as auth &NonFungibleToken.NFT?)! let storeFrontNFT = nft as! &NFT return storeFrontNFT as &{MetadataViews.Resolver} } pub fun revealNFT(id: UInt64, admin: &Admin, metadata: {String: String}) { if self.ownedNFTs[id] != nil { let nft = (&self.ownedNFTs[id] as auth &NonFungibleToken.NFT?)! let storeFrontNFT = nft as! &NFT storeFrontNFT.reveal(admin: admin, metadata: metadata) emit NFTReveal(nftId: id) } else { panic("can't find nft id") } } // If a transaction destroys the Collection object, // All the NFTs contained within are also destroyed! // Much like when Damian Lillard destroys the hopes and // dreams of the entire city of Houston. // destroy() { destroy self.ownedNFTs } } // Admin is a resource that storefront creator has // to mint NFT and create templates // pub resource Admin { pub fun mintNFT(templateId: UInt64, databaseID: String, hash: String, start: UInt64, end: UInt64): @NonFungibleToken.NFT { return <- StoreFront.mintNFT(templateId: templateId, databaseID: databaseID, hashMetadata: HashMetadata(hash: hash, start: start, end: end)) } pub fun createTemplate(metadata: {String: String}, maxEditions: UInt64, creationDate: UInt64): UInt64 { return StoreFront.createTemplate(metadata: metadata, maxEditions: maxEditions, creationDate: creationDate) } } // ----------------------------------------------------------------------- // StoreFront contract-level function definitions // ----------------------------------------------------------------------- // createEmptyCollection creates a new Collection a user can store // it in their account storage. // pub fun createEmptyCollection(): @Collection { return <-create StoreFront.Collection() } // getTemplate get a specific templates stored in the contract by id // pub fun getTemplate(templateId: UInt64): Template?{ return StoreFront.templateDatas[templateId] } // getAllTemplates get all templates stored in the contract // pub fun getAllTemplates(): [Template]{ return StoreFront.templateDatas.values } // mintNFT create a new NFT using a template ID // // Parameters: templateId: The ID of the Template // Parameters: databaseID: The database ID of external source, used to link transaction to db item // Parameters: hashMetadata: The hashMetadata is the collection hash, used to check if the nft metadata has changed // // returns: @NFT the token that was created access(account) fun mintNFT(templateId: UInt64, databaseID: String, hashMetadata: HashMetadata): @NFT { pre { StoreFront.templateDatas.containsKey(templateId) : "templateId not found" StoreFront.templateDatas[templateId]!.maxEditions > StoreFront.numberMintedByTemplate[templateId]! : "template not available" } var template = StoreFront.templateDatas[templateId]! StoreFront.numberMintedByTemplate[templateId] = StoreFront.numberMintedByTemplate[templateId]! + 1 let edition = StoreFront.numberMintedByTemplate[templateId]! let newNFT: @NFT <- create NFT(edition: edition, metadata: template!.metadata, templateId: templateId, databaseID: databaseID, hashMetadata: hashMetadata) StoreFront.totalSupply = StoreFront.totalSupply + 1 return <- newNFT } // createTemplate create a template using a metadata // // Parameters: metadata: The buyer's metadata to save inside Template // Parameters: maxEditions: The max amount of editions // Parameters: creationDate: The creation date of the template // // returns: UInt64 the new template ID access(account) fun createTemplate(metadata: {String: String}, maxEditions: UInt64, creationDate: UInt64): UInt64 { var newTemplate = Template(metadata: metadata, maxEditions: maxEditions, creationDate: creationDate) StoreFront.numberMintedByTemplate[newTemplate.templateId] = 0 StoreFront.templateDatas[newTemplate.templateId] = newTemplate return newTemplate.templateId } // create a admin // access(account) fun createStoreFrontAdmin(): @Admin { return <- create Admin() } init() { // Paths self.collectionPublicPath = /public/StoreFrontCollection0xa91523e55d4ff81f self.collectionStoragePath = /storage/StoreFrontCollection0xa91523e55d4ff81f self.collectionPrivatePath = /private/StoreFrontCollection0xa91523e55d4ff81f self.nextTemplateId = 1 self.nextNFTId = 1 self.totalSupply = 0 self.templateDatas = {} self.numberMintedByTemplate = {} emit ContractInitialized() } }