Add Unizen staking contract

src/adapters/unizen-staking.adapter.ts

@@ -0,0 +1,69 @@
+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 {UnizenStaking__factory} from '../types/factories/UnizenStaking__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 UnizenStakingContractAdapter extends BaseStakingContractAdapter {
+  /**
+   * The contract address
+   */
+  contractAddress = '0x5655B12f1e74D1D1fc3F1048a89850a0149Aa5d4';
+
+  PZCX_ADDRESS = '0xdd75542611d57c4b6e68168b14c3591c539022ed'
+  /**
+   * The chain the assets exist on
+   */
+  chainId: number = 137;
+
+  /**
+   * Assets that can be staked to this contract
+   */
+  supportedAssets: StakingAsset[] = [
+    {
+      name: 'pZCX',
+      asset: `ERC20:${this.PZCX_ADDRESS}`,
+    },
+  ];
+
+  /**
+   * Get staked token ids for the given owner
+   * @param owner - Owner address
+   * @returns
+   */
+  async getStakedTokenIds(owner: string): Promise<BigNumber[]> {
+    const contract = UnizenStaking__factory.connect(
+      this.contractAddress,
+      this.provider,
+    );
+    try {
+      const userStakes = await contract.callStatic['getUsersStakedAmountOfToken'](owner, this.PZCX_ADDRESS);
+      return [userStakes]
+    } catch (error) {
+      return [BigNumber.from(0)]
+    }
+  }
+
+  async getStakedTokenBalance(owner: string, assetName: string): Promise<BigNumber> {
+    const contract = UnizenStaking__factory.connect(
+      this.contractAddress,
+      this.provider,
+    );
+    try {
+      const userStakes = await contract.callStatic['getUsersStakedAmountOfToken'](owner, this.PZCX_ADDRESS);
+      return userStakes
+    } catch (error) {
+      return BigNumber.from(0)
+    }
+  }
+}
+

src/component.ts

@@ -74,6 +74,7 @@ import {SuperverseStakingContractAdapter} from './adapters/superverse-staking.ad
 import {SupremeKong2StakingContractAdapter} from './adapters/supreme-kong-2-staking.adapter.js';
 import {SupremeKongStakingContractAdapter} from './adapters/supreme-kong-staking.adapter.js';
 import {TtooStakingContractAdapter} from './adapters/ttoo-staking.adapter.js';
+import {UnizenStakingContractAdapter} from './adapters/unizen-staking.adapter.js';
 import {UwULendStakingContractAdapter} from './adapters/uwulend-staking.adapter.js';
 import {WarriorsofankhStakingContractAdapter} from './adapters/warriorsofankh-staking.adapter.js';
 import {XenoStakingContractAdapter} from './adapters/xeno-mining.adapter.js';
@@ -145,6 +146,7 @@ export class StakingContractsComponent implements Component {
     RailgunBinanceGovernanceAdapter,
     RailgunEthereumGovernanceAdapter,
     RailgunPolygonGovernanceAdapter,
+    UnizenStakingContractAdapter,
     RevenueCoinStakingContractAdapter,
   ];
   constructor() { }