TON contracts for Agorata
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import BN from "bn.js";
import { Address, Cell, CellMessage, InternalMessage, CommonMessageInfo, WalletContract, SendMode, Wallet } from "ton";
import { SmartContract } from "ton-contract-executor";
import Prando from "prando";
export const zeroAddress = new Address(0, Buffer.alloc(32, 0));
export function randomAddress(seed: string, workchain?: number) {
const random = new Prando(seed);
const hash = Buffer.alloc(32);
for (let i = 0; i < hash.length; i++) {
hash[i] = random.nextInt(0, 255);
}
return new Address(workchain ?? 0, hash);
}
// used with ton-contract-executor (unit tests) to sendInternalMessage easily
export function internalMessage(params: { from?: Address; to?: Address; value?: BN; bounce?: boolean; body?: Cell }) {
const message = params.body ? new CellMessage(params.body) : undefined;
return new InternalMessage({
from: params.from ?? randomAddress("sender"),
to: params.to ?? zeroAddress,
value: params.value ?? 0,
bounce: params.bounce ?? true,
body: new CommonMessageInfo({ body: message }),
});
}
// temp fix until ton-contract-executor (unit tests) remembers c7 value between calls
export function setBalance(contract: SmartContract, balance: BN) {
contract.setC7Config({
balance: balance.toNumber(),
});
}
// helper for end-to-end on-chain tests (normally post deploy) to allow sending InternalMessages to contracts using a wallet
export async function sendInternalMessageWithWallet(params: { walletContract: WalletContract; secretKey: Buffer; to: Address; value: BN; bounce?: boolean; body?: Cell }) {
const message = params.body ? new CellMessage(params.body) : undefined;
const seqno = await params.walletContract.getSeqNo();
const transfer = params.walletContract.createTransfer({
secretKey: params.secretKey,
seqno: seqno,
sendMode: SendMode.PAY_GAS_SEPARATLY + SendMode.IGNORE_ERRORS,
order: new InternalMessage({
to: params.to,
value: params.value,
bounce: params.bounce ?? false,
body: new CommonMessageInfo({
body: message,
}),
}),
});
await params.walletContract.client.sendExternalMessage(params.walletContract, transfer);
for (let attempt = 0; attempt < 10; attempt++) {
await sleep(2000);
const seqnoAfter = await params.walletContract.getSeqNo();
if (seqnoAfter > seqno) return;
}
}
function sleep(ms: number) {
return new Promise((resolve) => setTimeout(resolve, ms));
}