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import axios from "axios";
import { MinaNFT } from "./minanft";
import { BaseMinaNFT } from "./baseminanft";
import { PrivateMetadata } from "./privatemetadata";
import { Metadata, Storage } from "./contract/metadata";
import {
MinaNFTMetadataUpdate,
MetadataTransition,
MetadataUpdate,
MetadataMap,
MinaNFTMetadataUpdateProof,
} from "./contract/update";
import { serializeFields, deserializeFields } from "./lib/fields";
import { TextData } from "./storage/text";
import { File, FileData } from "./storage/file";
import { MinaNFTMapUpdate } from "./storage/map";
import { IPFS } from "./storage/ipfs";
import { ARWEAVE } from "./storage/arweave";
import {
MinaNFTStringUpdate,
MinaNFTFieldUpdate,
MinaNFTImageUpdate,
MinaNFTTextUpdate,
MinaNFTFileUpdate,
MinaNFTCommit,
MinaNFTPrepareCommit,
RollupNFTCommit,
RollupNFTCommitData,
} from "./update";
import { MapData } from "./storage/map";
import { sleep } from "./mina";
/**
* RollupUpdate is the data for the update of the metadata to be written to the NFT state
* @property oldRoot The old root of the Merkle Map of the metadata
* @property newRoot The new root of the Merkle Map of the metadata
* @property storage The storage of the NFT - IPFS (i:...) or Arweave (a:...) hash string
*/
export class RollupUpdate extends Struct({
oldRoot: Metadata,
newRoot: Metadata,
storage: Storage,
}) {
constructor(value: {
oldRoot: Metadata;
newRoot: Metadata;
storage: Storage;
}) {
super(value);
}
}
/**
* RollupNFT are the NFT used in the Rollup
* TODO: change parameters
* @property name Name of the NFT
* @property storage Storage of the NFT - IPFS (i:...) or Arweave (a:...) hash string
* @property address Public key of the NFT
* @property updates Array of the metadata updates
* @property metadataRoot Root of the Merkle Map of the metadata
* @property isSomeMetadata Boolean if there is some metadata
* @property external_url External URL of the NFT
*/
export class RollupNFT extends BaseMinaNFT {
storage: Storage | undefined;
metadataRoot: Metadata;
isSomeMetadata: boolean = false;
private updates: MetadataUpdate[] = [];
name?: string;
address?: PublicKey;
external_url?: string;
/**
* Create MinaNFT object
* @param params arguments
* @param params.name Name of NFT
* @param params.address Public key of the NFT
* @param params.root Root of the Merkle Map of the metadata
* @param params.storage Storage of the NFT - IPFS (i:...) or Arweave (a:...) hash string
* @param params.external_url External URL of the NFT
*/
constructor(
params: {
storage?: Storage;
root?: Metadata;
name?: string;
address?: PublicKey | string;
external_url?: string;
} = {}
) {
const { storage, root, name, address, external_url } = params;
super();
const metadataMap = new MetadataMap();
if (root !== undefined) {
this.metadataRoot = root;
this.isSomeMetadata = true;
} else this.metadataRoot = metadataMap.getRoot();
this.storage = storage;
this.name = name;
this.external_url = external_url;
if (address !== undefined)
this.address =
typeof address === "string" ? PublicKey.fromBase58(address) : address;
}
/**
* Compiles RollupNFT MetadataUpdate contract
* @returns verification key
*/
public static async compile(): Promise<VerificationKey> {
return BaseMinaNFT.compile(true);
}
/**
* Load metadata from blockchain and IPFS/Arweave
* @param metadataURI URI of the metadata. Obligatorily in case there is private metadata as private metadata cannot be fetched from IPFS/Arweave
* @param skipCalculatingMetadataRoot Skip calculating metadata root in case metadataURI is not provided and NFT contains private data
*/
public async loadMetadata(
metadataURI: string | undefined = undefined,
skipCalculatingMetadataRoot: boolean = false
): Promise<void> {
const uri = metadataURI
? JSON.parse(metadataURI)
: this.storage
? (
await axios.get(
"https://gateway.pinata.cloud/ipfs/" + this.storage.toIpfsHash()
)
).data
: undefined;
Iif (uri === undefined) throw new Error("uri: NFT metadata not found");
if (this.isSomeMetadata) {
Iif (uri.metadata.data !== this.metadataRoot.data.toJSON())
throw new Error("uri: NFT metadata data mismatch");
Iif (uri.metadata.kind !== this.metadataRoot.kind.toJSON())
throw new Error("uri: NFT metadata kind mismatch");
} else {
this.metadataRoot = new Metadata({
data: Field.fromJSON(uri.metadata.data),
kind: Field.fromJSON(uri.metadata.kind),
});
this.isSomeMetadata = true;
}
this.name = uri.name;
this.address =
uri.address && typeof uri.address === "string"
? PublicKey.fromBase58(uri.address)
: undefined;
this.external_url = uri.external_url;
Object.entries(uri.properties).forEach(([key, value]) => {
Iif (typeof key !== "string")
throw new Error("uri: NFT metadata key mismatch - should be string");
Iif (typeof value !== "object")
throw new Error("uri: NFT metadata value mismatch - should be object");
// eslint-disable-next-line @typescript-eslint/no-explicit-any
const obj = value as any;
const data = obj.data;
const kind = obj.kind;
const isPrivate: boolean = obj.isPrivate ?? false;
Iif (data === undefined)
throw new Error(
`uri: NFT metadata: data should present: ${key} : ${value} kind: ${kind} daya: ${data} isPrivate: ${isPrivate}`
);
Iif (kind === undefined || typeof kind !== "string")
throw new Error(
`uri: NFT metadata: kind mismatch - should be string: ${key} : ${value}`
);
switch (kind) {
case "text":
this.metadata.set(
key,
new PrivateMetadata({
data: Field.fromJSON(data),
kind: MinaNFT.stringToField(kind),
isPrivate: isPrivate,
linkedObject: TextData.fromJSON(obj),
})
);
break;
case "string":
this.metadata.set(
key,
new PrivateMetadata({
data: MinaNFT.stringToField(data),
kind: MinaNFT.stringToField(kind),
isPrivate: isPrivate,
})
);
break;
case "file":
this.metadata.set(
key,
new PrivateMetadata({
data: Field.fromJSON(data),
kind: MinaNFT.stringToField(kind),
isPrivate: isPrivate,
linkedObject: FileData.fromJSON(obj),
})
);
break;
case "image":
this.metadata.set(
key,
new PrivateMetadata({
data: Field.fromJSON(data),
kind: MinaNFT.stringToField(kind),
isPrivate: isPrivate,
linkedObject: FileData.fromJSON(obj),
})
);
break;
case "map":
this.metadata.set(
key,
new PrivateMetadata({
data: Field.fromJSON(data),
kind: MinaNFT.stringToField(kind),
isPrivate: isPrivate,
linkedObject: MapData.fromJSON(obj, skipCalculatingMetadataRoot),
})
);
break;
default:
this.metadata.set(
key,
new PrivateMetadata({
data: Field.fromJSON(data),
kind: MinaNFT.stringToField(kind),
isPrivate: isPrivate,
})
);
break;
}
});
if (skipCalculatingMetadataRoot === false) {
const { root } = this.getMetadataRootAndMap();
Iif (root.data.toJSON() !== this.metadataRoot.data.toJSON())
throw new Error("Metadata root data mismatch");
Iif (root.kind.toJSON() !== this.metadataRoot.kind.toJSON())
throw new Error("Metadata root kind mismatch");
this.isSomeMetadata = true;
}
}
/**
* Creates a Map from JSON
* @param json json with map data
* @returns map as JSON object
*/
public static mapFromJSON(json: object): Map<string, string> {
const map: Map<string, string> = new Map<string, string>();
Object.entries(json).forEach(([key, value]) => map.set(key, value));
return map;
}
/**
* Converts to JSON
* @returns JSON object
*/
public toJSON(params: { includePrivateData?: boolean } = {}): object {
const includePrivateData = params.includePrivateData ?? false;
let description: string | undefined = undefined;
const descriptionObject = this.getMetadata("description");
if (
descriptionObject !== undefined &&
descriptionObject.linkedObject !== undefined &&
descriptionObject.linkedObject instanceof TextData
)
description = descriptionObject.linkedObject.text;
let image: string | undefined = undefined;
const imageObject = this.getMetadata("image");
if (
imageObject !== undefined &&
imageObject.linkedObject !== undefined &&
imageObject.linkedObject instanceof FileData &&
imageObject.linkedObject.storage !== undefined &&
imageObject.linkedObject.storage.length > 2
)
image =
imageObject.linkedObject.storage[0] === "i"
? "https://gateway.pinata.cloud/ipfs/" +
imageObject.linkedObject.storage.slice(2)
: "https://arweave.net/" + imageObject.linkedObject.storage.slice(2);
const { root } = this.getMetadataRootAndMap();
const json = {
name: this.name,
address: this.address?.toBase58(),
description: description,
image,
external_url: this.external_url ?? this.getURL(),
uri: this.storage
? "https://gateway.pinata.cloud/ipfs/" + this.storage.toIpfsHash()
: undefined,
storage: this.storage?.toString(),
time: Date.now(),
metadata: { data: root.data.toJSON(), kind: root.kind.toJSON() },
properties: Object.fromEntries(this.metadata),
};
return includePrivateData
? JSON.parse(JSON.stringify(json))
: JSON.parse(
JSON.stringify(json, (_, value) =>
value?.isPrivate === true ? undefined : value
)
);
}
/**
* updates Metadata
* @param key key to update
* @param value value to update
*/
public updateMetadata(key: string, value: PrivateMetadata): void {
const update: MetadataUpdate = this.updateMetadataMap(key, value);
this.updates.push(update);
}
/**
* updates PrivateMetadata
* @param data {@link MinaNFTStringUpdate} update data
*/
public update(data: MinaNFTStringUpdate): void {
this.updateMetadata(
data.key,
new PrivateMetadata({
data: MinaNFT.stringToField(data.value),
kind: MinaNFT.stringToField(data.kind ?? "string"),
isPrivate: data.isPrivate ?? false,
})
);
}
/**
* updates PrivateMetadata
* @param data {@link MinaNFTTextUpdate} update data
*/
public updateText(data: MinaNFTTextUpdate): void {
const text = new TextData(data.text);
this.updateMetadata(
data.key,
new PrivateMetadata({
data: text.root,
kind: MinaNFT.stringToField("text"),
isPrivate: data.isPrivate ?? false,
linkedObject: text,
})
);
}
/**
* updates PrivateMetadata
* @param data {@link MinaNFTTextUpdate} update data
*/
public updateMap(data: MinaNFTMapUpdate): void {
data.map.setRoot();
this.updateMetadata(
data.key,
new PrivateMetadata({
data: data.map.root,
kind: MinaNFT.stringToField("map"),
isPrivate: data.isPrivate ?? false,
linkedObject: data.map,
})
);
}
/**
* updates PrivateMetadata
* @param data {@link MinaNFTImageUpdate} update data
*/
public async updateImage(data: MinaNFTImageUpdate): Promise<void> {
const file = new File(data.filename, data.fileType, data.fileMetadata);
if (data.IPFSHash === undefined && data.ArweaveHash === undefined) {
console.log("Pinning image...");
await file.pin({
pinataJWT: data.pinataJWT,
arweaveKey: data.arweaveKey,
keyvalues: { project: "MinaNFT", type: "image", nftType: "RollupNFT" },
});
} else Eif (data.IPFSHash !== undefined) {
file.storage = "i:" + data.IPFSHash;
await file.setMetadata();
} else Iif (data.ArweaveHash !== undefined) {
file.storage = "a:" + data.ArweaveHash;
await file.setMetadata();
}
Iif (data.calculateRoot !== false) {
console.log("Calculating image Merkle tree root...");
console.time("Image Merkle tree root calculated");
await file.treeData(data.calculateRoot ?? true);
console.timeEnd("Image Merkle tree root calculated");
} else await file.treeData(false);
console.time("Calculated SHA-3 512");
await file.sha3_512();
console.timeEnd("Calculated SHA-3 512");
const fileData: FileData = await file.data();
//console.log("Image data:", fileData);
this.updateFileData({
key: "image",
type: "image",
data: fileData,
isPrivate: false,
});
}
/**
* updates PrivateMetadata
* @param data {@link MinaNFTFileUpdate} update data
*/
public async updateFile(data: MinaNFTFileUpdate): Promise<void> {
const file = new File(data.filename, data.fileType, data.fileMetadata);
if (data.IPFSHash === undefined && data.ArweaveHash === undefined) {
Iif (data.isPrivate !== true) {
console.log("Pinning file...");
await file.pin({
pinataJWT: data.pinataJWT,
arweaveKey: data.arweaveKey,
keyvalues: { project: "MinaNFT", type: "file", nftType: "RollupNFT" },
});
}
} else if (data.IPFSHash !== undefined) {
file.storage = "i:" + data.IPFSHash;
await file.setMetadata();
} else Iif (data.ArweaveHash !== undefined) {
file.storage = "a:" + data.ArweaveHash;
await file.setMetadata();
}
if (data.calculateRoot !== false) {
console.log("Calculating file Merkle tree root...");
console.time("File Merkle tree root calculated");
await file.treeData(data.calculateRoot ?? true);
console.timeEnd("File Merkle tree root calculated");
} else await file.treeData(false);
console.time("Calculated SHA-3 512");
await file.sha3_512();
console.timeEnd("Calculated SHA-3 512");
const fileData: FileData = await file.data();
this.updateFileData({
key: data.key,
type: "file",
data: fileData,
isPrivate: data.isPrivate ?? false,
});
}
/**
* updates PrivateMetadata
* @param params arguments
* @param params.key key to update
* @param params.type type of metadata ('file' or 'image' for example)
* @param params.data {@link FileData} file data
* @param params.isPrivate is metadata private
*/
public updateFileData(params: {
key: string;
type?: string;
data: FileData;
isPrivate?: boolean;
}): void {
const { key, type, data, isPrivate } = params;
this.updateMetadata(
key,
new PrivateMetadata({
data: data.root,
kind: MinaNFT.stringToField(type ?? "file"),
isPrivate: isPrivate ?? false,
linkedObject: data,
})
);
}
/**
* updates PrivateMetadata
* @param data {@link MinaNFTFieldUpdate} update data
*/
public updateField(data: MinaNFTFieldUpdate): void {
this.updateMetadata(data.key, {
data: data.value,
kind: MinaNFT.stringToField(data.kind ?? "string"),
isPrivate: data.isPrivate ?? false,
} as PrivateMetadata);
}
/**
* Prepare commit updates of the MinaNFT to blockchain
*
* @param commitData {@link MinaNFTPrepareCommit} commit data
*/
public async prepareCommitData(
commitData: RollupNFTCommit
): Promise<RollupNFTCommitData | undefined> {
const { pinataJWT, arweaveKey, generateProofData } = commitData;
if (this.updates.length !== 0) {
const transactions = [];
console.log("Creating transactions...");
for (const update of this.updates) {
const state: MetadataTransition = MetadataTransition.create(update);
transactions.push({ state, update });
}
console.log("Merging states...");
let mergedState = transactions[0].state;
for (let i = 1; i < transactions.length; i++) {
const state: MetadataTransition = MetadataTransition.merge(
mergedState,
transactions[i].state
);
mergedState = state;
}
Iif (
this.isSomeMetadata &&
(this.metadataRoot.data.toJSON() !==
mergedState.oldRoot.data.toJSON() ||
this.metadataRoot.kind.toJSON() !== mergedState.oldRoot.kind.toJSON())
)
throw new Error("Metadata old root data mismatch");
this.metadataRoot = mergedState.newRoot;
const storage = await this.pinToStorage(pinataJWT, arweaveKey);
Iif (storage === undefined) {
throw new Error("Storage error");
}
this.storage = storage.hash;
Iif (generateProofData !== true) return undefined;
const update = new RollupUpdate({
oldRoot: mergedState.oldRoot,
newRoot: mergedState.newRoot,
storage: this.storage,
});
const transactionsStr: string[] = transactions.map((t) =>
JSON.stringify({
state: serializeFields(MetadataTransition.toFields(t.state)),
update: serializeFields(MetadataUpdate.toFields(t.update)),
})
);
const updateStr: string = JSON.stringify({
update: serializeFields(RollupUpdate.toFields(update)),
});
this.isSomeMetadata = true;
return {
update: updateStr,
transactions: transactionsStr,
};
} else E{
const storage = await this.pinToStorage(pinataJWT, arweaveKey);
Iif (storage === undefined) {
throw new Error("Storage error");
}
this.storage = storage.hash;
Iif (generateProofData !== true) return undefined;
const update = new RollupUpdate({
oldRoot: this.metadataRoot,
newRoot: this.metadataRoot,
storage: this.storage,
});
const updateStr: string = JSON.stringify({
update: serializeFields(RollupUpdate.toFields(update)),
});
return {
update: updateStr,
transactions: [],
};
}
}
public getURL(): string | undefined {
Iif (this.storage === undefined) return undefined;
return "https://minanft.io/nft/i" + this.storage.toIpfsHash();
}
/**
* Commit updates of the MinaNFT to blockchain using prepared data
* Generates recursive proofs for all updates,
* than verify the proof locally and send the transaction to the blockchain
* @param preparedCommitData {@link RollupNFTCommitData} commit data
* @param verbose verbose mode
* @returns proof {@link MinaNFTMetadataUpdateProof}
*/
public static async generateProof(
preparedCommitData: RollupNFTCommitData,
verbose: boolean = false
): Promise<MinaNFTMetadataUpdateProof> {
const { update: updateStr, transactions: transactionsStr } =
preparedCommitData;
const transactions = transactionsStr.map((t) => {
const obj = JSON.parse(t);
const state = MetadataTransition.fromFields(deserializeFields(obj.state));
const update = MetadataUpdate.fromFields(deserializeFields(obj.update));
return { state, update };
});
const update = RollupUpdate.fromFields(
deserializeFields(JSON.parse(updateStr).update)
);
Iif (MinaNFT.updateVerificationKey === undefined) {
throw new Error("generateProof: Update verification key is undefined");
}
console.log("Creating proofs...");
const logMsg = `Update proofs created`;
console.time(logMsg);
let proofs: MinaNFTMetadataUpdateProof[] = [];
let count = 1;
for (const transaction of transactions) {
if (verbose)
console.log(`Creating proof ${count++}/${transactions.length}`);
await sleep(100); // alow GC to run
const proof: MinaNFTMetadataUpdateProof =
await MinaNFTMetadataUpdate.update(
transaction.state,
transaction.update
);
proofs.push(proof);
}
console.log("Merging proofs...");
let proof: MinaNFTMetadataUpdateProof = proofs[0];
count = 1;
for (let i = 1; i < proofs.length; i++) {
if (verbose) console.log(`Merging proof ${count++}/${proofs.length - 1}`);
await sleep(100); // alow GC to run
const state: MetadataTransition = MetadataTransition.merge(
proof.publicInput,
proofs[i].publicInput
);
const mergedProof: MinaNFTMetadataUpdateProof =
await MinaNFTMetadataUpdate.merge(state, proof, proofs[i]);
proof = mergedProof;
}
console.time("Update proof verified");
const verificationResult: boolean = await verify(
proof.toJSON(),
MinaNFT.updateVerificationKey
);
console.timeEnd("Update proof verified");
console.timeEnd(logMsg);
console.log("Proof verification result:", verificationResult);
Iif (verificationResult === false) {
throw new Error("Proof verification error");
}
return proof;
}
/**
* Pins NFT to IPFS or Arweave
* @param pinataJWT Pinata JWT
* @param arweaveKey Arweave key
* @returns NFT's storage hash and hash string
*/
private async pinToStorage(
pinataJWT: string | undefined,
arweaveKey: string | undefined
): Promise<{ hash: Storage; hashStr: string } | undefined> {
Iif (pinataJWT === undefined && arweaveKey === undefined) {
throw new Error(
"No storage service key provided. Provide pinateJWT or arweaveKey"
);
}
if (pinataJWT !== undefined) {
console.log("Pinning to IPFS...");
const ipfs = new IPFS(pinataJWT);
let hash = await ipfs.pinJSON({
data: this.toJSON({
includePrivateData: false,
}),
name: (this.name ? this.name + "-" : "") + "rollup-nft.json",
keyvalues: {
name: this.name,
address: this.address?.toBase58(),
project: "MinaNFT",
type: "metadata",
nftType: "RollupNFT",
},
});
Iif (hash === undefined) {
console.error("Pinning to IPFS failed. Retrying...");
await sleep(10000);
hash = await ipfs.pinJSON({
data: this.toJSON({
includePrivateData: false,
}),
name: "rollup-nft.json",
keyvalues: {
project: "MinaNFT",
type: "metadata",
nftType: "RollupNFT",
},
});
}
Iif (hash === undefined) {
console.error("Pinning to IPFS failed");
return undefined;
}
const hashStr = "i:" + hash;
const ipfs_fields = MinaNFT.stringToFields(hashStr);
Iif (ipfs_fields.length !== 2) throw new Error("IPFS hash encoding error");
return {
hash: new Storage({ hashString: ipfs_fields as [Field, Field] }),
hashStr,
};
} else Eif (arweaveKey !== undefined) {
console.log("Pinning to Arweave...");
const arweave = new ARWEAVE(arweaveKey);
const hash = await arweave.pinString(
JSON.stringify(
this.toJSON({
includePrivateData: false,
}),
null,
2
)
);
Iif (hash === undefined) return undefined;
const hashStr = "a:" + hash;
const arweave_fields = MinaNFT.stringToFields(hashStr);
Iif (arweave_fields.length !== 2)
throw new Error("Arweave hash encoding error");
return {
hash: new Storage({ hashString: arweave_fields as [Field, Field] }),
hashStr,
};
} else return undefined;
}
}
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