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Field,
PublicKey,
Bool,
Struct,
UInt32,
UInt64,
Provable,
DynamicProof,
FeatureFlags,
Option,
Account,
} from "o1js";
import { Storage } from "@silvana-one/storage";
export {
MintParams,
MintParamsOption,
MintRequest,
NFTDataPacked,
NFTData,
CollectionData,
NFTState,
NFTImmutableState,
NFTUpdateProof,
NFTStateStruct,
UInt64Option,
TransferParams,
MAX_ROYALTY_FEE,
NFTTransactionContext,
TransferExtendedParams,
};
class UInt64Option extends Option(UInt64) {}
class NFTDataPacked extends Struct({
ownerX: Field,
approvedX: Field,
data: Field,
}) {
static assertEqual(a: NFTDataPacked, b: NFTDataPacked) {
a.ownerX.assertEquals(b.ownerX);
a.approvedX.assertEquals(b.approvedX);
a.data.assertEquals(b.data);
}
}
/**
* Represents the on-chain state structure of an NFT.
* The order of the fields is important and should match the NFT SmartContract.
*/
class NFTStateStruct extends Struct({
name: Field,
metadata: Field,
storage: Storage,
packedData: NFTDataPacked,
metadataVerificationKeyHash: Field,
}) {
/**
* Creates an NFTStateStruct from an account's app state.
* @param account The account containing the zkApp state.
* @returns A new NFTStateStruct instance.
*/
static fromAccount(account: Account) {
if (!account.zkapp?.appState) {
throw new Error("Invalid zkApp account state");
}
if (NFTStateStruct.sizeInFields() !== account.zkapp?.appState.length) {
throw new Error("Invalid NFTStateStruct size");
}
return NFTStateStruct.fromFields(account.zkapp?.appState);
}
/**
* Asserts that two NFTStateStruct instances are equal.
* @param a The first NFTStateStruct instance.
* @param b The second NFTStateStruct instance.
*/
static assertEqual(a: NFTStateStruct, b: NFTStateStruct) {
a.name.assertEquals(b.name);
a.metadata.assertEquals(b.metadata);
Storage.assertEquals(a.storage, b.storage);
NFTDataPacked.assertEqual(a.packedData, b.packedData);
a.metadataVerificationKeyHash.assertEquals(b.metadataVerificationKeyHash);
}
}
/**
* Represents the immutable state of an NFT, containing read-only properties
* and flags that determine the NFT's behavior and permissions.
*/
class NFTImmutableState extends Struct({
/** Determines if the NFT's ownership can be changed via a zero-knowledge proof (readonly). */
canChangeOwnerByProof: Bool, // readonly
/** Specifies if the NFT's ownership can be transferred (readonly). */
canTransfer: Bool, // readonly
/** Specifies if the NFT's approved address can be changed (readonly). */
canApprove: Bool, // readonly
/** Indicates whether the NFT's metadata can be updated (readonly). */
canChangeMetadata: Bool, // readonly
/** Determines whether the storage associated with the NFT can be altered (readonly). */
canChangeStorage: Bool, // readonly
/** Specifies if the name of the NFT can be changed (readonly). */
canChangeName: Bool, // readonly
/** Indicates whether the verification key hash for the metadata can be changed (readonly). */
canChangeMetadataVerificationKeyHash: Bool, // readonly
/** Specifies if the NFT contract can be paused, preventing certain operations (readonly). */
canPause: Bool, // readonly
/** The address of the NFT contract (readonly). */
address: PublicKey, // readonly
/** The token ID associated with the NFT (readonly). */
tokenId: Field, // readonly
/** The unique identifier of the NFT within the collection (readonly). */
id: UInt64, // readonly
}) {
/**
* Asserts that two NFTImmutableState instances are equal.
* @param a The first NFTImmutableState instance.
* @param b The second NFTImmutableState instance.
*/
static assertEqual(a: NFTImmutableState, b: NFTImmutableState) {
a.canChangeOwnerByProof.assertEquals(b.canChangeOwnerByProof);
a.canTransfer.assertEquals(b.canTransfer);
a.canApprove.assertEquals(b.canApprove);
a.canChangeMetadata.assertEquals(b.canChangeMetadata);
a.canChangeStorage.assertEquals(b.canChangeStorage);
a.canChangeName.assertEquals(b.canChangeName);
a.canChangeMetadataVerificationKeyHash.assertEquals(
b.canChangeMetadataVerificationKeyHash
);
a.canPause.assertEquals(b.canPause);
a.address.assertEquals(b.address);
a.tokenId.assertEquals(b.tokenId);
a.id.assertEquals(b.id);
}
/**
* Creates a new NFTImmutableState from NFTData and other parameters.
* @param params The parameters including nftData, creator, address, and tokenId.
* @returns A new NFTImmutableState instance.
*/
static fromNFTData(params: {
nftData: NFTData;
address: PublicKey;
tokenId: Field;
}) {
const { nftData, address, tokenId } = params;
return new NFTImmutableState({
address,
tokenId,
id: nftData.id,
canChangeOwnerByProof: nftData.canChangeOwnerByProof,
canTransfer: nftData.canTransfer,
canApprove: nftData.canApprove,
canChangeMetadata: nftData.canChangeMetadata,
canChangeStorage: nftData.canChangeStorage,
canChangeName: nftData.canChangeName,
canChangeMetadataVerificationKeyHash:
nftData.canChangeMetadataVerificationKeyHash,
canPause: nftData.canPause,
});
}
}
class NFTTransactionContext extends Struct({
/** Custom context that can be interpreted by the owner or approved contract.
* Can hold Storage and root or two PublicKeys and UInt64
* In case of holding Storage and root, the contracts can fetch using witnessAsync any off-chain data with unlimited size
* and verify it using the root.
*/
custom: Provable.Array(Field, 3),
}) {
static assertEqual(a: NFTTransactionContext, b: NFTTransactionContext) {
for (let i = 0; i < 3; i++) {
a.custom[i].assertEquals(b.custom[i]);
}
}
}
/**
* Represents the full state of an NFT, including both immutable and mutable properties.
*/
class NFTState extends Struct({
/** The immutable state of the NFT. */
immutableState: NFTImmutableState,
/** The name of the NFT. */
name: Field,
/** The owner of the NFT. */
owner: PublicKey,
/** The approved address of the NFT. */
approved: PublicKey,
/** The metadata associated with the NFT. */
metadata: Field,
/** The off-chain storage information (e.g., IPFS hash). */
storage: Storage,
/** The version number of the NFT state. */
version: UInt32,
/** Indicates whether the NFT contract is currently paused. */
isPaused: Bool,
/** The hash of the verification key used for metadata proofs. */
metadataVerificationKeyHash: Field,
/** The public key of the creator of the NFT (readonly). */
creator: PublicKey, // readonly
/** The transaction context of the NFT. */
context: NFTTransactionContext, // readonly
/** The oracle address to link the NFT update with the network and accounts state */
oracleAddress: PublicKey, // readonly
}) {
/**
* Asserts that two NFTState instances are equal.
* @param a The first NFTState instance.
* @param b The second NFTState instance.
*/
static assertEqual(a: NFTState, b: NFTState) {
NFTImmutableState.assertEqual(a.immutableState, b.immutableState);
a.name.assertEquals(b.name);
a.metadata.assertEquals(b.metadata);
Storage.assertEquals(a.storage, b.storage);
a.owner.assertEquals(b.owner);
a.approved.assertEquals(b.approved);
a.version.assertEquals(b.version);
a.isPaused.assertEquals(b.isPaused);
a.metadataVerificationKeyHash.assertEquals(b.metadataVerificationKeyHash);
a.creator.assertEquals(b.creator);
NFTTransactionContext.assertEqual(a.context, b.context);
}
/**
* Creates a new NFTState from an NFTStateStruct and other parameters.
* @param params The parameters including nftState, creator, address, and tokenId.
* @returns A new NFTState instance.
*/
static fromNFTState(params: {
nftState: NFTStateStruct;
creator: PublicKey;
address: PublicKey;
tokenId: Field;
context?: NFTTransactionContext;
oracleAddress?: PublicKey;
}) {
const { nftState, creator, address, tokenId, context, oracleAddress } =
params;
const nftData = NFTData.unpack(nftState.packedData);
const immutableState = NFTImmutableState.fromNFTData({
nftData,
address,
tokenId,
});
return new NFTState({
immutableState,
name: nftState.name,
metadata: nftState.metadata,
storage: nftState.storage,
owner: nftData.owner,
approved: nftData.approved,
version: nftData.version,
isPaused: nftData.isPaused,
metadataVerificationKeyHash: nftState.metadataVerificationKeyHash,
creator,
context: context ?? NFTTransactionContext.empty(),
oracleAddress: oracleAddress ?? PublicKey.empty(),
});
}
}
/**
* Represents a dynamic proof used for updating the state of an NFT.
*/
class NFTUpdateProof extends DynamicProof<NFTState, NFTState> {
static publicInputType = NFTState;
static publicOutputType = NFTState;
static maxProofsVerified = 2 as const;
static featureFlags = FeatureFlags.allMaybe;
}
/**
* Represents the data associated with an NFT, including state and permission flags.
*/
class NFTData extends Struct({
/** The owner of the NFT. */
owner: PublicKey,
/** The approved address of the NFT. */
approved: PublicKey,
/** The version number of the NFT state. */
version: UInt32,
/** The unique identifier of the NFT within the collection. */
id: UInt64,
/** Determines whether the NFT's ownership can be changed via a zero-knowledge proof (readonly). */
canChangeOwnerByProof: Bool, // readonly
/** Specifies if the NFT's ownership can be transferred (readonly). */
canTransfer: Bool, // readonly
/** Specifies if the NFT's approved address can be changed (readonly). */
canApprove: Bool, // readonly
/** Indicates whether the NFT's metadata can be updated (readonly). */
canChangeMetadata: Bool, // readonly
/** Determines whether the storage associated with the NFT can be altered (readonly). */
canChangeStorage: Bool, // readonly
/** Specifies if the name of the NFT can be changed (readonly). */
canChangeName: Bool, // readonly
/** Indicates whether the verification key hash for the metadata can be changed (readonly). */
canChangeMetadataVerificationKeyHash: Bool, // readonly
/** Specifies if the NFT contract can be paused, preventing certain operations (readonly). */
canPause: Bool, // readonly
/** Indicates whether the NFT contract is currently paused. */
isPaused: Bool,
/** Determines whether the owner's authorization is required to upgrade the NFT's verification key (readonly). */
requireOwnerAuthorizationToUpgrade: Bool, // readonly
}) {
/**
* Creates a new NFTData instance with optional parameters.
* @param params The parameters to create the NFTData.
* @returns A new NFTData instance.
*/
static new(params: {
owner: string | PublicKey;
approved?: string | PublicKey;
version?: number;
id?: bigint | string;
canChangeOwnerByProof?: boolean;
canTransfer?: boolean;
canApprove?: boolean;
canChangeMetadata?: boolean;
canChangeStorage?: boolean;
canChangeName?: boolean;
canChangeMetadataVerificationKeyHash?: boolean;
canPause?: boolean;
isPaused?: boolean;
requireOwnerAuthorizationToUpgrade?: boolean;
}): NFTData {
const {
owner,
approved,
version,
id,
canChangeOwnerByProof,
canTransfer,
canApprove,
canChangeMetadata,
canChangeStorage,
canChangeName,
canChangeMetadataVerificationKeyHash,
canPause,
isPaused,
requireOwnerAuthorizationToUpgrade,
} = params;
return new NFTData({
owner: typeof owner === "string" ? PublicKey.fromBase58(owner) : owner,
approved: approved
? typeof approved === "string"
? PublicKey.fromBase58(approved)
: approved
: PublicKey.empty(),
version: UInt32.from(version ?? 0),
id: UInt64.from(BigInt(id ?? 0)),
canChangeOwnerByProof: Bool(canChangeOwnerByProof ?? false),
canTransfer: Bool(canTransfer ?? true),
canApprove: Bool(canApprove ?? true),
canChangeMetadata: Bool(canChangeMetadata ?? false),
canChangeStorage: Bool(canChangeStorage ?? false),
canChangeName: Bool(canChangeName ?? false),
canChangeMetadataVerificationKeyHash: Bool(
canChangeMetadataVerificationKeyHash ?? false
),
canPause: Bool(canPause ?? false),
isPaused: Bool(isPaused ?? false),
requireOwnerAuthorizationToUpgrade: Bool(
requireOwnerAuthorizationToUpgrade ?? false
),
});
}
/**
* Packs the NFTData into a single Field for efficient storage.
* @returns The packed Field representation of the NFTData.
*/
pack(): NFTDataPacked {
const id = this.id.value.toBits(64);
const version = this.version.value.toBits(32);
return new NFTDataPacked({
ownerX: this.owner.x,
approvedX: this.approved.x,
data: Field.fromBits([
...id,
...version,
this.canChangeOwnerByProof,
this.canTransfer,
this.canApprove,
this.canChangeMetadata,
this.canChangeStorage,
this.canChangeName,
this.canChangeMetadataVerificationKeyHash,
this.canPause,
this.isPaused,
this.requireOwnerAuthorizationToUpgrade,
this.owner.isOdd,
this.approved.isOdd,
]),
});
}
/**
* Unpacks a Field into an NFTData instance.
* @param packed The packed Field representation of the NFTData.
* @returns A new NFTData instance.
*/
static unpack(packed: NFTDataPacked): NFTData {
const bits = packed.data.toBits(64 + 32 + 12);
const id = UInt64.Unsafe.fromField(Field.fromBits(bits.slice(0, 64)));
const version = UInt32.Unsafe.fromField(
Field.fromBits(bits.slice(64, 64 + 32))
);
const canChangeOwnerByProof = bits[64 + 32 + 0];
const canTransfer = bits[64 + 32 + 1];
const canApprove = bits[64 + 32 + 2];
const canChangeMetadata = bits[64 + 32 + 3];
const canChangeStorage = bits[64 + 32 + 4];
const canChangeName = bits[64 + 32 + 5];
const canChangeMetadataVerificationKeyHash = bits[64 + 32 + 6];
const canPause = bits[64 + 32 + 7];
const isPaused = bits[64 + 32 + 8];
const requireOwnerAuthorizationToUpgrade = bits[64 + 32 + 9];
const ownerIsOdd = bits[64 + 32 + 10];
const approvedIsOdd = bits[64 + 32 + 11];
const owner = PublicKey.from({ x: packed.ownerX, isOdd: ownerIsOdd });
const approved = PublicKey.from({
x: packed.approvedX,
isOdd: approvedIsOdd,
});
return new NFTData({
owner,
approved,
id,
version,
canChangeOwnerByProof,
canTransfer,
canApprove,
canChangeMetadata,
canChangeStorage,
canChangeName,
canChangeMetadataVerificationKeyHash,
canPause,
isPaused,
requireOwnerAuthorizationToUpgrade,
});
}
}
const MAX_ROYALTY_FEE = 100000;
/**
* Represents the data associated with an NFT collection, including configuration parameters and permission flags.
*/
class CollectionData extends Struct({
/** The royalty fee percentage (e.g., 1000 = 1%, 100 = 0.1%, 10000 = 10%, 100000 = 100%). */
royaltyFee: UInt32, // 1000 = 1%, 100 = 0.1%, 10000 = 10%, 100000 = 100%
/** The transfer fee amount. */
transferFee: UInt64,
/** If true, transferring NFTs requires approval from the admin contract. */
requireTransferApproval: Bool,
/** If true, the minting is stopped and cannot be resumed. */
mintingIsLimited: Bool,
/** Indicates whether the collection is currently paused. */
isPaused: Bool,
}) {
/**
* Creates a new CollectionData instance with specified parameters.
* @param params The parameters to create the CollectionData.
* @returns A new CollectionData instance.
*/
static new(params: {
royaltyFee?: number;
transferFee?: number | bigint | string;
requireTransferApproval?: boolean;
mintingIsLimited?: boolean;
isPaused?: boolean;
}): CollectionData {
const {
royaltyFee,
transferFee,
requireTransferApproval,
mintingIsLimited,
isPaused,
} = params;
return new CollectionData({
royaltyFee: UInt32.from(royaltyFee ?? 0),
transferFee: UInt64.from(BigInt(transferFee ?? 0)),
requireTransferApproval: Bool(requireTransferApproval ?? false),
mintingIsLimited: Bool(mintingIsLimited ?? false),
isPaused: Bool(isPaused ?? false),
});
}
/**
* Packs the CollectionData into a CollectionDataPacked representation for efficient storage.
* @returns The packed CollectionDataPacked instance.
*/
pack(): Field {
return Field.fromBits([
this.isPaused,
this.requireTransferApproval,
this.mintingIsLimited,
...this.royaltyFee.value.toBits(32),
...this.transferFee.value.toBits(64),
]);
}
/**
* Unpacks a CollectionDataPacked instance into a CollectionData instance.
* @param packed The packed CollectionDataPacked instance.
* @returns A new CollectionData instance.
*/
static unpack(packed: Field) {
const bits = packed.toBits(3 + 32 + 64);
const royaltyFee = UInt32.Unsafe.fromField(
Field.fromBits(bits.slice(3, 3 + 32))
);
const transferFee = UInt64.Unsafe.fromField(
Field.fromBits(bits.slice(3 + 32, 3 + 32 + 64))
);
return new CollectionData({
isPaused: bits[0],
requireTransferApproval: bits[1],
mintingIsLimited: bits[2],
royaltyFee,
transferFee,
});
}
static isPaused(packed: Field) {
return packed.toBits(3 + 32 + 64)[0];
}
static requireTransferApproval(packed: Field) {
return packed.toBits(3 + 32 + 64)[1];
}
static mintingIsLimited(packed: Field) {
const bits = packed.toBits(3 + 32 + 64);
const isPaused = bits[0];
const mintingIsLimited = bits[2];
return isPaused.or(mintingIsLimited);
}
}
/**
* Represents the parameters required for minting a new NFT.
*/
class MintParams extends Struct({
/** The name of the NFT. */
name: Field,
/** The address of the NFT contract. */
address: PublicKey,
/** The token ID of the NFT. */
tokenId: Field,
/** The data associated with the NFT, including owner, approved, version, id, permissions and flags. */
data: NFTData,
/** The fee associated with minting the NFT. */
fee: UInt64,
/** The metadata associated with the NFT. */
metadata: Field,
/** The off-chain storage information (e.g., IPFS hash). */
storage: Storage,
/** The hash of the verification key used for metadata proofs. */
metadataVerificationKeyHash: Field,
/** The expiry time slot for minting the NFT. */
expiry: UInt32,
}) {}
/**
* Represents an optional MintParams, used in scenarios where minting may or may not be allowed.
*/
class MintParamsOption extends Option(MintParams) {}
/**
* Represents a request to mint a new NFT, used by the admin contract to determine if minting is allowed.
*/
class MintRequest extends Struct({
/** The address of the NFT contract where the NFT will be minted. */
address: PublicKey,
/** The owner of the new NFT (can be different from the sender). */
owner: PublicKey, // can be different from the sender
/** A custom value that can be interpreted by the admin contract. */
context: NFTTransactionContext, // should be interpreted by the admin contract
}) {}
/**
* Represents the parameters required for transferring an NFT.
*/
class TransferParams extends Struct({
/** The address of the NFT contract. */
address: PublicKey,
/** The sender's public key. */
from: PublicKey,
/** The receiver's public key. */
to: PublicKey,
/** Optional price for the transfer. */
price: UInt64Option,
/** Custom value that can be interpreted by the owner or approved contract. */
context: NFTTransactionContext,
}) {}
class TransferExtendedParams extends Struct({
/** The public key of the sender (current owner) before the transfer. */
from: PublicKey,
/** The public key of the recipient (new owner) after the transfer. */
to: PublicKey,
/** The public key of the collection. */
collection: PublicKey,
/** The public key address of the NFT being transferred. */
nft: PublicKey,
/** The fee paid for the transfer. */
fee: UInt64Option,
/** The price of the NFT being transferred. */
price: UInt64Option,
/** Indicates whether the transfer is by owner or by approved address. */
transferByOwner: Bool,
/** The public key of the approved address. */
approved: PublicKey,
/** Custom value that can be interpreted by the owner or approved contract. */
context: NFTTransactionContext,
}) {}
|