[VEN-2359] Deployment of LST Oracles

contracts/test/MockAnkrBNB.sol

@@ -0,0 +1,33 @@
+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/ERC20.sol)
+
+pragma solidity ^0.8.0;
+
+import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+import { IAnkrBNB } from "../interfaces/IAnkrBNB.sol";
+import "@openzeppelin/contracts/access/Ownable.sol";
+
+contract MockAnkrBNB is ERC20, Ownable, IAnkrBNB {
+    uint8 private immutable _decimals;
+    uint256 public exchangeRate;
+
+    constructor(string memory name_, string memory symbol_, uint8 decimals_) ERC20(name_, symbol_) Ownable() {
+        _decimals = decimals_;
+    }
+
+    function faucet(uint256 amount) external {
+        _mint(msg.sender, amount);
+    }
+
+    function setSharesToBonds(uint256 rate) external onlyOwner {
+        exchangeRate = rate;
+    }
+
+    function sharesToBonds(uint256 amount) external view override returns (uint256) {
+        return (amount * exchangeRate) / (10 ** uint256(_decimals));
+    }
+
+    function decimals() public view virtual override(ERC20, IAnkrBNB) returns (uint8) {
+        return _decimals;
+    }
+}

contracts/test/MockWBETH.sol

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+// SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/ERC20.sol)
+
+pragma solidity ^0.8.0;
+
+import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
+import { IWBETH } from "../interfaces/IWBETH.sol";
+import "@openzeppelin/contracts/access/Ownable.sol";
+
+contract MockWBETH is ERC20, Ownable, IWBETH {
+    uint8 private immutable _decimals;
+    uint256 public override exchangeRate;
+
+    constructor(string memory name_, string memory symbol_, uint8 decimals_) ERC20(name_, symbol_) Ownable() {
+        _decimals = decimals_;
+    }
+
+    function faucet(uint256 amount) external {
+        _mint(msg.sender, amount);
+    }
+
+    function setExchangeRate(uint256 rate) external onlyOwner {
+        exchangeRate = rate;
+    }
+
+    function decimals() public view virtual override(ERC20, IWBETH) returns (uint8) {
+        return _decimals;
+    }
+}

deploy/5-deploy-bnb-lst-oracles.ts

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+import { ethers } from "hardhat";
+import { DeployFunction } from "hardhat-deploy/dist/types";
+import { HardhatRuntimeEnvironment } from "hardhat/types";
+
+import { ADDRESSES, assets } from "../helpers/deploymentConfig";
+
+const func: DeployFunction = async ({ getNamedAccounts, deployments, network }: HardhatRuntimeEnvironment) => {
+  const { deploy } = deployments;
+  const { deployer } = await getNamedAccounts();
+
+  const oracle = await ethers.getContract("ResilientOracle");
+  const proxyOwnerAddress = network.live ? ADDRESSES[network.name].timelock : deployer;
+
+  const { ankrBNB, stkBNB, BNBx, BNBxStakeManager, slisBNBStakeManager, stkBNBStakePool, slisBNB, wBETH } =
+    ADDRESSES[network.name];
+  const ETH = assets[network.name].find(asset => asset.token === "ETH");
+
+  await deploy("BNBxOracle", {
+    from: deployer,
+    log: true,
+    deterministicDeployment: false,
+    args: [BNBxStakeManager, BNBx, oracle.address],
+    proxy: {
+      owner: proxyOwnerAddress,
+      proxyContract: "OptimizedTransparentProxy",
+    },
+    skipIfAlreadyDeployed: true,
+  });
+
+  await deploy("SlisBNBOracle", {
+    from: deployer,
+    log: true,
+    deterministicDeployment: false,
+    args: [slisBNBStakeManager, slisBNB, oracle.address],
+    proxy: {
+      owner: proxyOwnerAddress,
+      proxyContract: "OptimizedTransparentProxy",
+    },
+    skipIfAlreadyDeployed: true,
+  });
+
+  await deploy("StkBNBOracle", {
+    from: deployer,
+    log: true,
+    deterministicDeployment: false,
+    args: [stkBNBStakePool, stkBNB, oracle.address],
+    proxy: {
+      owner: proxyOwnerAddress,
+      proxyContract: "OptimizedTransparentProxy",
+    },
+    skipIfAlreadyDeployed: true,
+  });
+
+  let ankrBNBAddress = ankrBNB;
+  if (!ankrBNB) {
+    // deploy MockAnkrBNB
+    await deploy("MockAnkrBNB", {
+      from: deployer,
+      log: true,
+      autoMine: true, // speed up deployment on local network (ganache, hardhat), no effect on live networks
+      skipIfAlreadyDeployed: true,
+      args: ["Ankr Staked BNB ", "ankrBNB", "18"],
+    });
+
+    const ankrBNBContract = await ethers.getContract("MockAnkrBNB");
+    ankrBNBAddress = ankrBNBContract.address;
+
+    if ((await ankrBNBContract.owner()) === deployer) {
+      await ankrBNBContract.transferOwnership(proxyOwnerAddress);
+    }
+  }
+
+  await deploy("AnkrBNBOracle", {
+    from: deployer,
+    log: true,
+    deterministicDeployment: false,
+    args: [ankrBNBAddress, oracle.address],
+    proxy: {
+      owner: proxyOwnerAddress,
+      proxyContract: "OptimizedTransparentProxy",
+    },
+    skipIfAlreadyDeployed: true,
+  });
+
+  let wBETHAddress = wBETH;
+  if (!wBETH) {
+    // deploy MockWBETH
+    await deploy("MockWBETH", {
+      from: deployer,
+      log: true,
+      autoMine: true, // speed up deployment on local network (ganache, hardhat), no effect on live networks
+      skipIfAlreadyDeployed: true,
+      args: ["Wrapped Binance Beacon ETH", "wBETH", "18"],
+    });
+
+    const wBETHContract = await ethers.getContract("MockWBETH");
+    wBETHAddress = wBETHContract.address;
+
+    if ((await wBETHContract.owner()) === deployer) {
+      await wBETHContract.transferOwnership(proxyOwnerAddress);
+    }
+  }
+
+  await deploy("WBETHOracle", {
+    from: deployer,
+    log: true,
+    deterministicDeployment: false,
+    args: [wBETHAddress, ETH?.address, oracle.address],
+    proxy: {
+      owner: proxyOwnerAddress,
+      proxyContract: "OptimizedTransparentProxy",
+    },
+    skipIfAlreadyDeployed: true,
+  });
+};
+
+export default func;
+func.tags = ["bnb_lst"];
+func.skip = async (hre: HardhatRuntimeEnvironment) =>
+  hre.network.name !== "bscmainnet" && hre.network.name !== "bsctestnet";