mint

src/App.tsx

@@ -4,7 +4,7 @@ import {Header} from "./Header.tsx";
 import {Content} from "./Content.tsx";
 
 function App() {
-    return <TonConnectUIProvider manifestUrl="https://siandreev.github.io/web3-hk-sample/tonconnect-manifest.json">
+    return <TonConnectUIProvider manifestUrl="https://raw.githubusercontent.com/mir-one/sbt-scanner/main/public/tonconnect-manifest.json">
         <AppRoot>
             <Header />
         <Content />

src/Content.tsx

@@ -30,6 +30,6 @@ export const Content = () => {
             src="https://raw.githubusercontent.com/mir-one/sbt-scanner/main/public/scanner.gif"
             style={{ display: 'block', width: '144px', height: '144px' }}
         />
-        <Button onClick={onSend}>Mint free NFT</Button>
+        <Button onClick={onSend}>Mint NFT Scanner</Button>
     </Placeholder>
 }

src/assets/nft.ts

@@ -0,0 +1,121 @@
+import { Base64 } from "@tonconnect/protocol";
+import {
+  Address,
+  beginCell,
+  contractAddress as calculateContractAddress,
+  Cell,
+  storeStateInit,
+} from "ton";
+
+const nftUri =
+  "https://raw.githubusercontent.com/mir-one/sbt-scanner/main/public/nft.json";
+
+function bufferToChunks(buff: Buffer, chunkSize: number) {
+  const chunks: Buffer[] = [];
+  while (buff.byteLength > 0) {
+    chunks.push(buff.subarray(0, chunkSize));
+    buff = buff.subarray(chunkSize);
+  }
+  return chunks;
+}
+
+function makeSnakeCell(data: Buffer): Cell {
+  const chunks = bufferToChunks(data, 127);
+
+  if (chunks.length === 0) {
+    return beginCell().endCell();
+  }
+
+  if (chunks.length === 1) {
+    return beginCell().storeBuffer(chunks[0]).endCell();
+  }
+
+  let curCell = beginCell();
+
+  for (let i = chunks.length - 1; i >= 0; i--) {
+    const chunk = chunks[i];
+
+    curCell.storeBuffer(chunk);
+
+    if (i - 1 >= 0) {
+      const nextCell = beginCell();
+      nextCell.storeRef(curCell);
+      curCell = nextCell;
+    }
+  }
+
+  return curCell.endCell();
+}
+
+const contractCode =
+  "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";
+const initCodeCell = Cell.fromBase64(contractCode);
+
+const createOffchainUriCell = (uri: string) => {
+  let data = Buffer.from(uri);
+  const offChainPrefix = Buffer.from([0x01]);
+  data = Buffer.concat([offChainPrefix, data]);
+  return makeSnakeCell(data);
+};
+
+function generateInitialData(ownerAddressHex: string): Cell {
+  const nftContent = createOffchainUriCell(nftUri);
+
+  const builder = beginCell()
+    .storeUint(0, 64)
+    .storeUint(0, 2)
+    .storeAddress(Address.parseRaw(ownerAddressHex))
+    .storeUint(Date.now(), 64)
+    .storeRef(nftContent);
+
+  return builder.endCell();
+}
+
+function generateStateInit(data: Cell): string {
+  return callToBase64(
+    beginCell()
+      .store(storeStateInit({ code: initCodeCell, data }))
+      .endCell()
+  );
+}
+
+function callToBase64(cell: Cell): string {
+  return Base64.encode(cell.toBoc());
+}
+
+function generateContractAddress(initDataCell: Cell): string {
+  return calculateContractAddress(0, {
+    data: initDataCell,
+    code: initCodeCell,
+  }).toString();
+}
+
+export function getAddressAndStateInit(ownerAddress: string): {
+  address: string;
+  stateInit: string;
+} {
+  const initialData = generateInitialData(ownerAddress);
+  const address = generateContractAddress(initialData);
+  const stateInit = generateStateInit(initialData);
+  return { address, stateInit };
+}
+
+export function generatePayload(sendTo: string): string {
+  const op = 0x5fcc3d14; // transfer
+  const quiryId = 0;
+  const messageBody = beginCell()
+    .storeUint(op, 32)
+    .storeUint(quiryId, 64)
+    .storeAddress(Address.parse(sendTo))
+    .storeAddress(Address.parse(sendTo))
+    .storeBit(false)
+    .storeCoins(0)
+    .storeBit(0)
+    .endCell();
+
+  return Base64.encode(messageBody.toBoc());
+}
+
+export function getRawAddress(userFriendlyAddress: string): string {
+  return Address.parse(userFriendlyAddress).toString();
+}