chore(TCK): Added account allowance transaction endpoint (#2774)

* feat: Draft account allowance transaction added

Signed-off-by: ivaylogarnev-limechain <[email protected]>

* fix: Some fixing in the approveAllowence method

Signed-off-by: ivaylogarnev-limechain <[email protected]>

* fix: Fixing conditions inside approveAllowance method

Signed-off-by: ivaylogarnev-limechain <[email protected]>

* fix: Added delegateSpenderAccountId check

Signed-off-by: ivaylogarnev-limechain <[email protected]>

* refactor: Refactored the accountAlowance method and put some of the logic in helper function

Signed-off-by: ivaylogarnev-limechain <[email protected]>

* fix: Multiple allowances logic adjusted

Signed-off-by: ivaylogarnev-limechain <[email protected]>

* fix: Removed check for no allowances

Signed-off-by: ivaylogarnev-limechain <[email protected]>

---------

Signed-off-by: ivaylogarnev-limechain <[email protected]>
Co-authored-by: Ivan Ivanov <[email protected]>

Author: ivaylogarnev-limechain

tck/methods/account.ts

@@ -5,6 +5,8 @@ import {
     AccountUpdateTransaction,
     AccountDeleteTransaction,
     Timestamp,
+    AccountAllowanceApproveTransaction,
+    TokenId,
 } from "@hashgraph/sdk";
 import Long from "long";
 
@@ -13,8 +15,10 @@ import { AccountResponse } from "../response/account";
 
 import { getKeyFromString } from "../utils/key";
 import { DEFAULT_GRPC_DEADLINE } from "../utils/constants/config";
+import { handleNftAllowances } from "../utils/helpers/account";
 
 import {
+    AccountAllowanceApproveParams,
     CreateAccountParams,
     DeleteAccountParams,
     UpdateAccountParams,
@@ -208,3 +212,54 @@ export const deleteAccount = async ({
         status: receipt.status.toString(),
     };
 };
+
+export const approveAllowance = async ({
+    allowances,
+    commonTransactionParams,
+}: AccountAllowanceApproveParams): Promise<AccountResponse> => {
+    const transaction = new AccountAllowanceApproveTransaction();
+    transaction.setGrpcDeadline(DEFAULT_GRPC_DEADLINE);
+
+    for (const allowance of allowances) {
+        const { ownerAccountId, spenderAccountId, hbar, token, nft } =
+            allowance;
+        const owner = AccountId.fromString(ownerAccountId);
+        const spender = AccountId.fromString(spenderAccountId);
+
+        if (hbar) {
+            transaction.approveHbarAllowance(
+                owner,
+                spender,
+                Hbar.fromTinybars(hbar.amount),
+            );
+        } else if (token) {
+            transaction.approveTokenAllowance(
+                TokenId.fromString(token.tokenId),
+                owner,
+                spender,
+                Long.fromString(token.amount),
+            );
+        } else if (nft) {
+            handleNftAllowances(transaction, nft, owner, spender);
+        } else {
+            throw new Error("No valid allowance type provided.");
+        }
+    }
+
+    transaction.freezeWith(sdk.getClient());
+
+    if (commonTransactionParams) {
+        applyCommonTransactionParams(
+            commonTransactionParams,
+            transaction,
+            sdk.getClient(),
+        );
+    }
+
+    const txResponse = await transaction.execute(sdk.getClient());
+    const receipt = await txResponse.getReceipt(sdk.getClient());
+
+    return {
+        status: receipt.status.toString(),
+    };
+};

tck/params/account.ts

@@ -1,3 +1,5 @@
+import { AllowanceParams } from "./allowance";
+
 export interface CreateAccountParams {
     readonly key?: string;
     readonly initialBalance?: string;
@@ -31,3 +33,8 @@ export interface DeleteAccountParams {
     readonly transferAccountId?: string;
     readonly commonTransactionParams?: Record<string, any>;
 }
+
+export interface AccountAllowanceApproveParams {
+    readonly allowances: AllowanceParams[];
+    readonly commonTransactionParams?: Record<string, any>;
+}

tck/params/allowance.ts

@@ -0,0 +1,23 @@
+export interface AllowanceParams {
+    readonly ownerAccountId: string;
+    readonly spenderAccountId: string;
+    readonly hbar: HbarAllowanceParams;
+    readonly token?: TokenAllowanceParams;
+    readonly nft?: NftAllowanceParams;
+}
+
+export interface HbarAllowanceParams {
+    readonly amount: string;
+}
+
+export interface TokenAllowanceParams {
+    readonly tokenId: string;
+    readonly amount: string;
+}
+
+export interface NftAllowanceParams {
+    readonly tokenId: string;
+    readonly serialNumbers?: string[];
+    readonly approvedForAll?: boolean;
+    readonly delegateSpenderAccountId?: string;
+}

tck/utils/helpers/account.ts

@@ -0,0 +1,55 @@
+import {
+    AccountId,
+    AccountAllowanceApproveTransaction,
+    TokenId,
+    NftId,
+} from "@hashgraph/sdk";
+import Long from "long";
+
+import { NftAllowanceParams } from "../../params/allowance";
+
+export const handleNftAllowances = (
+    transaction: AccountAllowanceApproveTransaction,
+    nft: NftAllowanceParams,
+    owner: AccountId,
+    spender: AccountId,
+) => {
+    const { tokenId, serialNumbers, delegateSpenderAccountId, approvedForAll } =
+        nft;
+
+    if (delegateSpenderAccountId === "") {
+        throw new Error("delegateSpenderAccountId cannot be an empty string!");
+    }
+
+    if (serialNumbers) {
+        for (const serialNumber of serialNumbers) {
+            const nftId = new NftId(
+                TokenId.fromString(tokenId),
+                Long.fromString(serialNumber),
+            );
+
+            if (delegateSpenderAccountId) {
+                transaction.approveTokenNftAllowanceWithDelegatingSpender(
+                    nftId,
+                    owner,
+                    spender,
+                    AccountId.fromString(delegateSpenderAccountId),
+                );
+            } else {
+                transaction.approveTokenNftAllowance(nftId, owner, spender);
+            }
+        }
+    } else if (approvedForAll) {
+        transaction.approveTokenNftAllowanceAllSerials(
+            TokenId.fromString(tokenId),
+            owner,
+            spender,
+        );
+    } else {
+        transaction.deleteTokenNftAllowanceAllSerials(
+            TokenId.fromString(tokenId),
+            owner,
+            spender,
+        );
+    }
+};