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Bool,
Encoding,
Field,
PublicKey,
SmartContract,
State,
method,
state,
Mina,
UInt64, AccountUpdate,
} from 'o1js';
import { OracleContract, IOracleClient } from './OracleContract.js';
import { OracleRequest } from '../gen/oracle-request_pb.js';
import { buildERC677Contract, SErc677Contract } from '../token/Erc677Token.js';
/**
* Builds a Mina transaction that sends an Oracle request to a designated zkApp with Addr.
*
* @param {Mina.FeePayerSpec} sender - The fee payer specification for the transaction.
* @param {PublicKey} oracleAddress - The Oracle contract address to use.
* @param {SmartContract & IOracleClient} zkApp - The zkApp contract that accepts Oracle requests, also implementing the `IOracleClient` interface.
* @param {OracleRequest} oracleRequest - The data for the Oracle request, represented as an `OracleRequest` object.
* @returns {Promise<Mina.Transaction>} - A promise that resolves to a Mina transaction containing the Oracle request.
*/
export async function buildOracleRequestTxWithAddr(
sender: Mina.FeePayerSpec,
oracleAddress: PublicKey,
zkApp: SmartContract & IOracleClient,
oracleRequest: OracleRequest
): Promise<Mina.Transaction<false,false>> {
const offChainBytes = oracleRequest.toBinary(); // Convert request data to binary
const reqField = Encoding.bytesToFields(offChainBytes); // Convert binary to fields
return Mina.transaction(sender, async () => {
await zkApp.sendOracleRequestWithAddr(
oracleAddress,
reqField[0],
reqField[1],
reqField[2],
reqField[3]
);
});
}
/**
* Builds a Mina transaction that sends an Oracle request to a designated zkApp.
*
* @param {Mina.FeePayerSpec} sender - The fee payer specification for the transaction.
* @param {SmartContract & IOracleClient} zkApp - The zkApp contract that accepts Oracle requests, also implementing the `IOracleClient` interface.
* @param {OracleRequest} oracleRequest - The data for the Oracle request, represented as an `OracleRequest` object.
* @returns {Promise<Mina.Transaction>} A promise that resolves to a Mina transaction containing the Oracle request.
*/
export async function buildOracleRequestTx(
sender: Mina.FeePayerSpec,
zkApp: SmartContract & IOracleClient,
oracleRequest: OracleRequest
): Promise<Mina.Transaction<false,false>> {
const offChainBytes = oracleRequest.toBinary(); // Convert request data to binary
const reqField = Encoding.bytesToFields(offChainBytes); // Convert binary to fields
return Mina.transaction(sender, async () => {
await zkApp.sendOracleRequest(reqField[0], reqField[1], reqField[2], reqField[3]);
});
}
/**
* Builds a transfer and call transaction.
*
* @param {Mina.FeePayerSpec} sender - The sender of the transaction.
* @param {SmartContract & IOracleClient} zkApp - The smart contract that implements the OracleClient interface.
* @param {OracleRequest} oracleRequest - The oracle request to be sent.
* @return {Promise<Mina.Transaction>} A promise that resolves to the built transaction.
*/
export async function buildTransferAndCallTx(
sender: Mina.FeePayerSpec,
pk: PublicKey,
zkApp: SmartContract & IOracleClient,
oracleRequest: OracleRequest
): Promise<Mina.Transaction<false,false>> {
const offChainBytes = oracleRequest.toBinary(); // Convert request data to binary
const reqField = Encoding.bytesToFields(offChainBytes); // Convert binary to fields
return Mina.transaction(sender, async () => {
AccountUpdate.fundNewAccount(pk);
await zkApp.sendErc677RequestTo(
reqField[0],
reqField[1],
reqField[2],
reqField[3]
);
});
}
/**
* A basic request client contract that implements the `IOracleClient` interface.
*/
export class BasicRequestClient extends SmartContract implements IOracleClient {
/**
* Represents an Oracle Address.
*
* @type {State<PublicKey>}
*/
@state(PublicKey) oracleAddress = State<PublicKey>(); // State variable storing the Oracle's address
/**
* Represents the token address stored in the state.
*
* @type {State<PublicKey>}
*/
@state(PublicKey) tokenAddress = State<PublicKey>(); // State variable storing the Token's address
/**
* Represents the initial state of a field in a data structure.
*
* @type {State<Field>}
*/
@state(Field) data0 = State<Field>();
/**
* Initializes the instance.
*
* This method initializes the instance by calling the 'init' method of the super class, and
* setting the value of 'this.data0' to 'Field(0)'.
*
* @returns {void}
*/
init(): void {
super.init();
// this.oracleAddress.set(PublicKey.fromBase58(ORACLE_PUBLIC_KEY)); // Initialize with provided Oracle address
this.data0.set(Field(0));
}
/**
* Sets the stored Oracle contract address.
*
* @param {PublicKey} oracleAddress - The new Oracle contract address to set.
* @returns {Bool} - A boolean indicating success (always true in this implementation).
*/
@method async setOracleContract(oracleAddress: PublicKey) {
this.oracleAddress.set(oracleAddress);
}
/**
* Updates the stored ERC-677 token address associated with this client.
*
* @param {PublicKey} tokenAddress - The new PublicKey of the ERC-677 token.
* @return {Bool} - True to indicate successful execution.
*/
@method async setErc677Token(tokenAddress: PublicKey) {
this.tokenAddress.set(tokenAddress);
}
/**
* Sends an Oracle request to the stored Oracle contract.
*
* @param {PublicKey} oracleAddress - The new Oracle contract address to set.
* @param {Field} req0 - The first field of the request data.
* @param {Field} req1 - The second field of the request data.
* @param {Field} req2 - The third field of the request data.
* @param {Field} req3 - The fourth field of the request data.
* @returns {Bool} - A boolean indicating success (determined by the Oracle contract).
*/
@method async sendOracleRequestWithAddr(
oracleAddress: PublicKey,
req0: Field,
req1: Field,
req2: Field,
req3: Field
) {
// const oraclePublicKey = this.oraclePublicKey.get();
// this.oraclePublicKey.assertEquals(oraclePublicKey);
const oracleContract = new OracleContract(oracleAddress); // Instantiate Oracle contract
await oracleContract.oracleRequest(req0, req1, req2, req3); // Forward request to Oracle
}
/**
* Sends an Oracle request to the stored Oracle contract.
*
* @param {Field} req0 - The first field of the request data.
* @param {Field} req1 - The second field of the request data.
* @param {Field} req2 - The third field of the request data.
* @param {Field} req3 - The fourth field of the request data.
* @returns {Bool} - A boolean indicating success (determined by the Oracle contract).
*/
@method async sendOracleRequest(
req0: Field,
req1: Field,
req2: Field,
req3: Field
) {
const oraclePublicKey = this.oracleAddress.get();
this.oracleAddress.requireEquals(this.oracleAddress.get());
const oracleContract = new OracleContract(oraclePublicKey); // Instantiate Oracle contract
await oracleContract.oracleRequest(req0, req1, req2, req3); // Forward request to Oracle
}
/**
* Sends an ERC677 request to the Oracle contract.
*
* @param {Field} req0 - The first field of the request.
* @param {Field} req1 - The second field of the request.
* @param {Field} req2 - The third field of the request.
* @param {Field} req3 - The fourth field of the request.
*
* @return {Bool} - Returns true if the request was successfully sent to the Oracle contract.
*/
@method async sendErc677RequestTo(
req0: Field,
req1: Field,
req2: Field,
req3: Field
) {
const tokenAddressPublicKey = this.tokenAddress.get();
this.tokenAddress.requireEquals(this.tokenAddress.get());
const oracleAddressPublicKey = this.oracleAddress.get();
this.oracleAddress.requireEquals(this.oracleAddress.get());
const tokenContract = new SErc677Contract(tokenAddressPublicKey);
await tokenContract.transferAndCall(
oracleAddressPublicKey,
UInt64.from(100_000),
req0,
req1,
req2,
req3
);
}
/**
* Callback method for fulfilling an Oracle request.
*
* @param {Field} data0 - The data to fulfill the request with.
* @returns {Bool} A boolean indicating success (always true in this implementation, potentially requiring verification).
*/
@method async onFulfillRequest(data0: Field) {
// verify from oracleContract
this.data0.set(data0);
}
}
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