Contract Source Code (Solidity Standard Json-Input format)

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import {ICurvePool} from "src/interfaces/ICurvePool.sol";
import {IChainlinkBasePriceFeed} from "src/interfaces/IChainlinkFeed.sol";

contract CurveLPPessimisticFeed {
    ICurvePool public immutable curvePool;

    IChainlinkBasePriceFeed public immutable coin1Feed;
    IChainlinkBasePriceFeed public immutable coin2Feed;

    string public description;

    constructor(address _curvePool, address _coin1Feed, address _coin2Feed) {
        curvePool = ICurvePool(_curvePool);
        coin1Feed = IChainlinkBasePriceFeed(_coin1Feed);
        coin2Feed = IChainlinkBasePriceFeed(_coin2Feed);
        require(
            coin1Feed.decimals() == coin2Feed.decimals() &&
                coin1Feed.decimals() == 18,
            "CurveLPPessimisticFeed: DECIMALS_MISMATCH"
        );

        description = string(abi.encodePacked(curvePool.symbol(), " / USD"));
    }

    /**
     * @return roundId The round ID of the Chainlink price feed
     * @return minLpUsdprice The latest LP token price in USD
     * @return startedAt The timestamp when the latest round of Chainlink price feed started
     * @return updatedAt The timestamp when the latest round of Chainlink price feed was updated
     * @return answeredInRound The round ID in which the answer was computed
     */
    function latestRoundData()
        public
        view
        returns (uint80, int256, uint256, uint256, uint80)
    {
        (
            uint80 roundId,
            int256 usdPriceCoin1,
            uint startedAt,
            uint updatedAt,
            uint80 answeredInRound
        ) = coin1Feed.latestRoundData();

        (
            uint80 roundIdCoin2,
            int256 usdPriceCoin2,
            uint startedAtCoin2,
            uint updatedAtCoin2,
            uint80 answeredInRoundCoin2
        ) = coin2Feed.latestRoundData();

        int256 minLpUsdPrice;

        // If coin1 price is lower than coin2 price, use coin1 price
        if (usdPriceCoin1 < usdPriceCoin2) {
            minLpUsdPrice =
                (usdPriceCoin1 * int256(curvePool.get_virtual_price())) /
                int256(10 ** decimals());
        } else {
            minLpUsdPrice =
                (usdPriceCoin2 * int(curvePool.get_virtual_price())) /
                int256(10 ** decimals());
        }
        if (updatedAtCoin2 < updatedAt) {
            roundId = roundIdCoin2;
            startedAt = startedAtCoin2;
            updatedAt = updatedAtCoin2;
            answeredInRound = answeredInRoundCoin2;
        }
        return (roundId, minLpUsdPrice, startedAt, updatedAt, answeredInRound);
    }

    /** 
    @notice Retrieves the latest price for LP token
    @return price The latest price for LP token
    */
    function latestAnswer() external view returns (int256) {
        (, int256 price, , , ) = latestRoundData();
        return price;
    }

    /**
     * @notice Retrieves number of decimals for the LP token price feed
     * @return decimals The number of decimals for the LP token price feed
     */
    function decimals() public pure returns (uint8) {
        return 18;
    }
}

pragma solidity ^0.8.13;

interface ICurvePool {
    function price_oracle(uint256 k) external view returns (uint256);

    function get_virtual_price() external view returns (uint256);

    function price_oracle() external view returns (uint256);

    function add_liquidity(
        uint256[2] memory _amounts,
        uint256 _min_mint_amount,
        address _receiver
    ) external returns (uint256);

    function add_liquidity(
        uint256[2] memory _amounts,
        uint256 _min_mint_amount
    ) external returns (uint256);

    function add_liquidity(
        uint256[3] memory _amounts,
        uint256 _min_mint_amount,
        address _receiver
    ) external returns (uint256);

    function add_liquidity(
        uint256[3] memory _amounts,
        uint256 _min_mint_amount
    ) external returns (uint256);

    function remove_liquidity_one_coin(
        uint256 _burn_amount,
        int128 i,
        uint256 _min_received,
        address _receiver
    ) external returns (uint256);

    function coins(uint index) external view returns (address);

    function exchange(
        uint i,
        uint j,
        uint dx,
        uint min_dy,
        bool use_eth,
        address receiver
    ) external payable returns (uint);

    function calc_token_amount(
        uint256[2] memory _amounts,
        bool _is_deposit
    ) external view returns (uint256);

    function calc_withdraw_one_coin(
        uint256 _burn_amount,
        int128 i
    ) external view returns (uint256);

    function symbol() external view returns (string memory);
}

pragma solidity ^0.8.13;

interface IChainlinkFeed {
    function aggregator() external view returns (address aggregator);

    function decimals() external view returns (uint8 decimals);

    function latestRoundData()
        external
        view
        returns (
            uint80 roundId,
            int256 crvUsdPrice,
            uint256 startedAt,
            uint256 updatedAt,
            uint80 answeredInRound
        );

    function latestAnswer() external view returns (int256 price);

    function description() external view returns (string memory description);
}

interface IChainlinkBasePriceFeed is IChainlinkFeed {
    function assetToUsd() external view returns (IChainlinkFeed);

    function assetToUsdFallback() external view returns (IChainlinkFeed);

    function assetToUsdHeartbeat() external view returns (uint256 heartbeat);
}

{
  "remappings": [
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "solmate/=lib/solmate/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "shanghai",
  "viaIR": false,
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_curvePool","type":"address"},{"internalType":"address","name":"_coin1Feed","type":"address"},{"internalType":"address","name":"_coin2Feed","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"coin1Feed","outputs":[{"internalType":"contract IChainlinkBasePriceFeed","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"coin2Feed","outputs":[{"internalType":"contract IChainlinkBasePriceFeed","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"curvePool","outputs":[{"internalType":"contract ICurvePool","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"description","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestAnswer","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"latestRoundData","outputs":[{"internalType":"uint80","name":"","type":"uint80"},{"internalType":"int256","name":"","type":"int256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint80","name":"","type":"uint80"}],"stateMutability":"view","type":"function"}]

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000000000000000000000000ef484de8c07b6e2d732a92b5f78e81b38f99f95e000000000000000000000000fdc4a4abcd45518cfbc3f8d43a48f5513ffab8910000000000000000000000005cb542eb054f81b8fa1760c077f44aa80271c75d

-----Decoded View---------------
Arg [0] : _curvePool (address): 0xef484de8C07B6e2d732A92B5F78e81B38f99f95E
Arg [1] : _coin1Feed (address): 0xFDc4a4ABcd45518CfBc3F8d43a48f5513FFAb891
Arg [2] : _coin2Feed (address): 0x5CB542EB054f81b8Fa1760c077f44AA80271c75D

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000ef484de8c07b6e2d732a92b5f78e81b38f99f95e
Arg [1] : 000000000000000000000000fdc4a4abcd45518cfbc3f8d43a48f5513ffab891
Arg [2] : 0000000000000000000000005cb542eb054f81b8fa1760c077f44aa80271c75d