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

import {ICurvePool} from "src/interfaces/ICurvePool.sol";
import {IChainlinkBasePriceFeed} from "src/interfaces/IChainlinkFeed.sol";
import {IERC20} from "src/interfaces/IERC20.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,
        bool _oldCurveImpl
    ) {
        curvePool = ICurvePool(_curvePool);
        coin1Feed = IChainlinkBasePriceFeed(_coin1Feed);
        coin2Feed = IChainlinkBasePriceFeed(_coin2Feed);
        require(
            coin1Feed.decimals() == coin2Feed.decimals() &&
                coin1Feed.decimals() == 18,
            "CurveLPPessimisticFeed: DECIMALS_MISMATCH"
        );
        if (_oldCurveImpl)
            description = string(
                abi.encodePacked(
                    IERC20(curvePool.lp_token()).symbol(),
                    " / USD"
                )
            );
        else
            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[] 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[] 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_token_amount(
        uint256[] 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);

    function lp_token() external view returns (address);
}

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);
}

pragma solidity ^0.8.13;

interface IERC20 {
    function approve(address, uint) external;

    function transfer(address, uint) external returns (bool);

    function transferFrom(address, address, uint) external returns (bool);

    function balanceOf(address) external view returns (uint);

    function allowance(address from, address to) external view returns (uint);

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

interface IMintable is IERC20 {
    function mint(address, uint) external;

    function burn(uint) external;

    function addMinter(address minter) external;
}

interface IDelegateableERC20 is IERC20 {
    function delegate(address delegatee) external;

    function delegates(
        address delegator
    ) external view returns (address delegatee);
}

{
  "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/",
    "halmos-cheatcodes/=lib/openzeppelin-contracts/lib/halmos-cheatcodes/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": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_curvePool","type":"address"},{"internalType":"address","name":"_coin1Feed","type":"address"},{"internalType":"address","name":"_coin2Feed","type":"address"},{"internalType":"bool","name":"_oldCurveImpl","type":"bool"}],"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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