add revenuecoin staking (#235)

Signed-off-by: fkrevenue <fk@revenuecapital.io>

src/adapters/revenue.adapter.ts

@@ -0,0 +1,42 @@
+import {BindingScope, extensionFor, injectable} from '@loopback/core';
+import {BigNumber} from 'ethers';
+import {STAKING_ADAPTERS_EXTENSION_POINT} from '../keys.js';
+import {BaseStakingContractAdapter, StakingAsset} from '../staking.js';
+// Use the full path to import instead of `../types`
+import {Revenue__factory} from '../types/factories/Revenue__factory.js';
+
+@injectable(
+  {
+    scope: BindingScope.SINGLETON, // Mark the adapter as a singleton
+  },
+  // Mark it as an extension to staking contracts service
+  extensionFor(STAKING_ADAPTERS_EXTENSION_POINT),
+)
+export class RevenueCoinStakingContractAdapter extends BaseStakingContractAdapter {
+  /**
+   * The contract address
+   */
+  contractAddress = '0xd5a5874c9328d955440cb26aed57bce3fb998c0f';
+  chainId: number = 56;
+  /**
+   * Assets that can be staked to this contract
+   */
+  supportedAssets: StakingAsset[] = [
+    {
+      asset: 'ERC20:0xbcbdecf8e76A5C32Dba69De16985882ace1678c6',
+    },
+  ];
+
+  async getStakedTokenBalance(owner: string): Promise<BigNumber> {
+    const contract = Revenue__factory.connect(
+      this.contractAddress,
+      this.provider,
+    );
+    const balance = BigNumber.from(0);
+    for (let i = 0; i < 3; i++) {
+      const amount = await contract.userInfo(i, owner);
+      balance.add(amount.amount);
+    }
+    return balance;
+  }
+}

src/component.ts

@@ -62,6 +62,7 @@ import {
   ReNFTPolygonSylvesterV1StakingContractAdapter,
 } from './adapters/renft.adapter.js';
 import {ReplicantXStakingContractAdapter} from './adapters/replicantx-staking.adapter.js';
+import {RevenueCoinStakingContractAdapter} from './adapters/revenue.adapter.js';
 import {RirisuStakingContractAdapter} from './adapters/ririsu.adapter.js';
 import {RivalBearsStakingContractAdapter} from './adapters/rival-bears-staking.adapter.js';
 import {RoboStakingContractAdapter} from './adapters/robo.adapter.js';
@@ -144,6 +145,7 @@ export class StakingContractsComponent implements Component {
     RailgunBinanceGovernanceAdapter,
     RailgunEthereumGovernanceAdapter,
     RailgunPolygonGovernanceAdapter,
+    RevenueCoinStakingContractAdapter,
   ];
-  constructor() {}
+  constructor() { }
 }