Add Fork Oracle Support (#978)

reserve-protocol · Oct 13, 2023 · f4fa0cd · f4fa0cd
1 parent 0e03983
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diff --git a/contracts/forknet/ForkedOracle.sol b/contracts/forknet/ForkedOracle.sol
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: BlueOak-1.0.0
+pragma solidity 0.8.19;
+
+interface AggregatorV3MixedInterface {
+    function decimals() external view returns (uint8);
+
+    function description() external view returns (string memory);
+
+    function latestRoundData()
+        external
+        view
+        returns (
+            uint80 roundId,
+            int256 answer,
+            uint256 startedAt,
+            uint256 updatedAt,
+            uint80 answeredInRound
+        );
+
+    function aggregator() external view returns (address);
+}
+
+contract ForkedOracle is AggregatorV3MixedInterface {
+    address public constant aggregator = address(0x1);
+    string public constant description = "FORKED";
+
+    uint8 public decimals;
+    int256 private answerInternal;
+
+    function setData(uint8 _decimals, int256 _answer) external {
+        decimals = _decimals;
+        answerInternal = _answer;
+    }
+
+    function latestRoundData()
+        external
+        view
+        returns (
+            uint80 roundId,
+            int256 answer,
+            uint256 startedAt,
+            uint256 updatedAt,
+            uint80 answeredInRound
+        )
+    {
+        roundId = 1;
+        answer = answerInternal;
+        startedAt = 0;
+        updatedAt = block.timestamp - 1;
+        answeredInRound = 1;
+    }
+}
diff --git a/scripts/replaceOracles.ts b/scripts/replaceOracles.ts
@@ -0,0 +1,60 @@
+import hre, { ethers } from 'hardhat'
+
+const supportedNodes = ['anvil', 'hardhat']
+const oracleList = [
+  '0x759bbc1be8f90ee6457c44abc7d443842a976d02',
+  '0xAed0c38402a5d19df6E4c03F4E2DceD6e29c1ee9',
+  '0x8fFfFfd4AfB6115b954Bd326cbe7B4BA576818f6',
+  '0x3E7d1eAB13ad0104d2750B8863b489D65364e32D',
+  '0x833D8Eb16D306ed1FbB5D7A2E019e106B960965A',
+  '0x09023c0DA49Aaf8fc3fA3ADF34C6A7016D38D5e3',
+  '0xec746eCF986E2927Abd291a2A1716c940100f8Ba',
+  '0xad35Bd71b9aFE6e4bDc266B345c198eaDEf9Ad94',
+  '0xB9E1E3A9feFf48998E45Fa90847ed4D467E8BcfD',
+  '0x7A364e8770418566e3eb2001A96116E6138Eb32F',
+  '0x5f4ec3df9cbd43714fe2740f5e3616155c5b8419',
+  '0xF4030086522a5bEEa4988F8cA5B36dbC97BeE88c',
+  '0x01D391A48f4F7339aC64CA2c83a07C22F95F587a',
+  '0xb49f677943BC038e9857d61E7d053CaA2C1734C1',
+  '0x86392dc19c0b719886221c78ab11eb8cf5c52812',
+  '0xCfE54B5cD566aB89272946F602D76Ea879CAb4a8',
+  '0x536218f9E9Eb48863970252233c8F271f554C2d0',
+  '0xf017fcb346a1885194689ba23eff2fe6fa5c483b',
+  '0xfdFD9C85aD200c506Cf9e21F1FD8dd01932FBB23',
+]
+
+async function main() {
+  const clientVersion = await hre.ethers.provider.send('web3_clientVersion', [])
+  const isSupported = supportedNodes.some((node) => clientVersion.toLowerCase().includes(node))
+  console.log({ clientVersion, isSupported })
+
+  if (!isSupported) {
+    throw Error('Unsupported Network')
+  }
+
+  const forkedOracleArtifact = await hre.artifacts.readArtifact('ForkedOracle')
+
+  for (const oracleAddress of oracleList) {
+    const oracle = await hre.ethers.getContractAt('ForkedOracle', oracleAddress)
+
+    const description = await oracle.description()
+    const decimals = await oracle.decimals()
+    const roundData = await oracle.latestRoundData()
+
+    console.log(`-------- Updating ${description} (${oracle.address}) Oracle...`)
+    console.log(`>>>> Current Answer:`, ethers.utils.formatUnits(roundData.answer, decimals))
+
+    console.log('>>>> Updating code...')
+    await hre.ethers.provider.send('hardhat_setCode', [
+      oracle.address,
+      forkedOracleArtifact.deployedBytecode,
+    ])
+    console.log('>>>> Updating data...')
+    await oracle.setData(decimals, roundData.answer, {
+      gasLimit: 10_000_000,
+    })
+    console.log('>>>> Done!')
+  }
+}
+
+main().catch((e) => console.error(e))