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70 changes: 70 additions & 0 deletions
70
packages/contracts/chainDeploy/helpers/oracles/velodromeFraxtal.ts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,70 @@ | ||
| import { prepareAndLogTransaction } from "../logging"; | ||
| import { DeployResult } from "hardhat-deploy/types"; | ||
| import { Address, Hex } from "viem"; | ||
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| import { addUnderlyingsToMpo } from "./utils"; | ||
| import { underlying } from "../utils"; | ||
| import { AerodromeDeployFnParams } from "../../types"; | ||
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| export const deployVelodromeOracleFraxtal = async ({ | ||
| viem, | ||
| getNamedAccounts, | ||
| deployments, | ||
| pricesContract, | ||
| assets | ||
| }: AerodromeDeployFnParams): Promise<{ apo: DeployResult }> => { | ||
| const { deployer } = await getNamedAccounts(); | ||
| const publicClient = await viem.getPublicClient(); | ||
| let tx: Hex; | ||
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| //// Velodrome Oracle | ||
| const apo = await deployments.deploy("VelodromePriceOracleFraxtal", { | ||
| from: deployer, | ||
| args: [pricesContract], | ||
| log: true, | ||
| waitConfirmations: 1 | ||
| }); | ||
| if (apo.transactionHash) await publicClient.waitForTransactionReceipt({ hash: apo.transactionHash as Address }); | ||
| console.log("VelodromePriceOracleFraxtal: ", apo.address); | ||
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| const velodrome = await viem.getContractAt( | ||
| "VelodromePriceOracleFraxtal", | ||
| (await deployments.get("VelodromePriceOracleFraxtal")).address as Address | ||
| ); | ||
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| const underlyings = assets.map((c) => underlying(assets, c.symbol)); | ||
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| const mpo = await viem.getContractAt( | ||
| "MasterPriceOracle", | ||
| (await deployments.get("MasterPriceOracle")).address as Address | ||
| ); | ||
| console.log("underlyings: ", underlyings); | ||
| await addUnderlyingsToMpo(mpo as any, underlyings, velodrome.address, deployer, publicClient); | ||
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| const addressesProvider = await viem.getContractAt( | ||
| "AddressesProvider", | ||
| (await deployments.get("AddressesProvider")).address as Address | ||
| ); | ||
| const velodromeAddress = await addressesProvider.read.getAddress(["VelodromePriceOracleFraxtal"]); | ||
| if (velodromeAddress !== velodrome.address) { | ||
| if (((await addressesProvider.read.owner()) as Address).toLowerCase() === deployer.toLowerCase()) { | ||
| tx = await addressesProvider.write.setAddress(["VelodromePriceOracleFraxtal", velodrome.address]); | ||
| await publicClient.waitForTransactionReceipt({ hash: tx }); | ||
| console.log(`setAddress VelodromePriceOracleFraxtal at ${tx}`); | ||
| } else { | ||
| await prepareAndLogTransaction({ | ||
| contractInstance: addressesProvider, | ||
| functionName: "setAddress", | ||
| args: ["VelodromePriceOracleFraxtal", velodrome.address], | ||
| description: "Set VelodromePriceOracleFraxtal address on AddressProvider", | ||
| inputs: [ | ||
| { internalType: "string", name: "id", type: "string" }, | ||
| { internalType: "address", name: "newAddress", type: "address" } | ||
| ] | ||
| }); | ||
| console.log("Logged Transaction to setAddress VelodromePriceOracleFraxtal on AddressProvider"); | ||
| } | ||
| } | ||
|
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||
| return { apo }; | ||
| }; |
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45 changes: 45 additions & 0 deletions
45
packages/contracts/contracts/oracles/default/VelodromePriceOracleFraxtal.sol
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,45 @@ | ||
| // SPDX-License-Identifier: UNLICENSED | ||
| pragma solidity >=0.8.0; | ||
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| import "../BasePriceOracle.sol"; | ||
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| import { IERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; | ||
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| interface Prices { | ||
| function getRate(address srcToken, address dstToken, bool useSrcWrappers) external view returns (uint256 weightedRate); | ||
| } | ||
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| contract VelodromePriceOracleFraxtal is BasePriceOracle { | ||
| Prices immutable prices; | ||
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| constructor(address _prices) { | ||
| prices = Prices(_prices); | ||
| } | ||
| /** | ||
| * @notice Fetches the token/ETH price, with 18 decimals of precision. | ||
| * @param underlying The underlying token address for which to get the price. | ||
| * @return Price denominated in ETH (scaled by 1e18) | ||
| */ | ||
| function price(address underlying) external view override returns (uint256) { | ||
| return _price(underlying); | ||
| } | ||
|
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| /** | ||
| * @notice Returns the price in ETH of the token underlying `cToken`. | ||
| * @dev Implements the `PriceOracle` interface for Ionic pools (and Compound v2). | ||
| * @return Price in ETH of the token underlying `cToken`, scaled by `10 ** (36 - underlyingDecimals)`. | ||
| */ | ||
| function getUnderlyingPrice(ICErc20 cToken) external view override returns (uint256) { | ||
| address underlying = cToken.underlying(); | ||
| // Comptroller needs prices to be scaled by 1e(36 - decimals) | ||
| // Since `_price` returns prices scaled by 18 decimals, we must scale them by 1e(36 - 18 - decimals) | ||
| return (_price(underlying)); | ||
| } | ||
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| /** | ||
| * @notice Fetches the token/ETH price, with 18 decimals of precision. | ||
| */ | ||
| function _price(address token) internal view returns (uint256) { | ||
| return prices.getRate(token, 0xFC00000000000000000000000000000000000006, false); | ||
| } | ||
| } |
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