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// SPDX-License-Identifier: MIT

pragma solidity 0.8.26;

import {IMetaBeraborrowCore} from "src/interfaces/core/IMetaBeraborrowCore.sol";

/**
    @title Beraborrow Core
    @notice Single source of truth for system-wide values and contract ownership.
            Other ownable Beraborrow contracts inherit their ownership from this contract
            using `BeraborrowOwnable`, relayed by BeraborrowCore.
    @dev Named Meta, since Beraborrow will consist of multiple protocol instances
 */
contract MetaBeraborrowCore is IMetaBeraborrowCore {
    // We enforce a three day delay between committing and applying
    // an ownership change, as a sanity check on a proposed new owner
    // and to give users time to react in case the act is malicious.
    uint256 public constant OWNERSHIP_TRANSFER_DELAY = 3 days;

    uint16 public constant DEFAULT_FLASH_LOAN_FEE = 5; // 0.05%

    // During bootstrap period sNect redemptions are not allowed
    uint64 public lspBootstrapPeriod;
    address public priceFeed;
    address public nect;
    // System-wide pause. When true, disables den adjustments across all collaterals.
    bool public paused;
    address public owner;
    address public pendingOwner;
    uint256 public ownershipTransferDeadline;
    address public manager;
    address public guardian;
    address public feeReceiver;
    uint16 public lspEntryFee;
    uint16 public lspExitFee;

    // Beacon-looked by NECT to determine fee reduction given to periphery contract for flash loans/mints
    mapping(address peripheryContract => FeeInfo fee) internal peripheryFlashLoanFee;
    mapping(address => RebalancerFeeInfo fee) internal rebalancerFee;

    constructor(address _owner, address _guardian, address _priceFeed, address _nect, address _feeReceiver, uint16 _lspEntryFee, uint16 _lspExitFee, uint64 _lspBootstrapPeriod) {
        if (_owner == address(0) || _guardian == address(0) || _priceFeed == address(0) || _nect == address(0) || _feeReceiver == address(0)) {
            revert("MetaBeraborrowCore: 0 address");
        }

        owner = _owner;
        guardian = _guardian;
        priceFeed = _priceFeed;
        nect = _nect;
        feeReceiver = _feeReceiver;
        lspEntryFee = _lspEntryFee;
        lspExitFee = _lspExitFee;
        lspBootstrapPeriod = _lspBootstrapPeriod;

        emit GuardianSet(_guardian);
        emit PriceFeedSet(_priceFeed);
        emit FeeReceiverSet(_feeReceiver);             
        emit EntryFeeSet(_lspEntryFee);
        emit ExitFeeSet(_lspExitFee);
        emit LSPBootstrapPeriodSet(_lspBootstrapPeriod);
    }

    modifier onlyOwner() {
        require(msg.sender == owner, "Only owner");
        _;
    }

    /**
     * @notice Sets the global pause state of the protocol
     *         Pausing is used to mitigate risks in exceptional circumstances
     *         Functionalities affected by pausing are:
     *         - New borrowing is not possible
     *         - New collateral deposits are not possible
     *         - New stability pool deposits are not possible
     * @param _paused If true the protocol is paused
     */
    function setPaused(bool _paused) external {
        require((_paused && msg.sender == guardian) || msg.sender == owner, "Unauthorized");
        paused = _paused;
        if (_paused) {
            emit Paused();
        } else {
            emit Unpaused();
        }
    }

    /**
     * @notice Set the receiver of all fees across the protocol
     * @param _feeReceiver Address of the fee's recipient
     */
    function setFeeReceiver(address _feeReceiver) external onlyOwner {
        feeReceiver = _feeReceiver;
        emit FeeReceiverSet(_feeReceiver);
    }

    /**
     * @notice Set the price feed used in the protocol
     * @param _priceFeed Price feed address
     */
    function setPriceFeed(address _priceFeed) external onlyOwner {
        priceFeed = _priceFeed;
        emit PriceFeedSet(_priceFeed);
    }

    /**
     * @notice Set the guardian address
               The guardian can execute some emergency actions
     * @param _guardian Guardian address
     */
    function setGuardian(address _guardian) external onlyOwner {
        guardian = _guardian;
        emit GuardianSet(_guardian);
    }

    /**
     * @notice Usable for deployment tasks
     * @param _manager Manager address
     */
    function setManager(address _manager) external onlyOwner {
        manager = _manager;
        emit ManagerSet(_manager);
    }

    /// @notice Bootstrap period is added to current timestamp
    function setLspBootstrapPeriod(uint64 _bootstrapPeriod) external onlyOwner {
        lspBootstrapPeriod = uint64(block.timestamp) + _bootstrapPeriod;

        emit LSPBootstrapPeriodSet(_bootstrapPeriod);
    }

    function setRebalancerFee(address _rebalancer, uint16 _entryFee, uint16 _exitFee) external onlyOwner {
        require(_entryFee <= 1e4 && _exitFee <= 1e4, "Fee too high");
        rebalancerFee[_rebalancer] = RebalancerFeeInfo({exists: true, entryFee: _entryFee, exitFee: _exitFee});
        emit RebalancerFees(_rebalancer, _entryFee, _exitFee);
    }

    function setEntryFee(uint16 _fee) external onlyOwner {
        require(_fee <= 1e4, "Fee too high");
        lspEntryFee = _fee;
        emit EntryFeeSet(_fee);
    }

    function setExitFee(uint16 _fee) external onlyOwner {
        require(_fee <= 1e4, "Fee too high");
        lspExitFee = _fee;
        emit ExitFeeSet(_fee);
    }

    function setPeripheryFlashLoanFee(address _periphery, uint16 _nectFee, bool _existsForNect) external onlyOwner {
        require(_nectFee <= 1e4, "Fee too high");

        peripheryFlashLoanFee[_periphery] = FeeInfo({
            existsForNect: _existsForNect,
            nectFee: _nectFee
        });

        emit PeripheryFlashLoanFee(_periphery, _nectFee);
    }

    function commitTransferOwnership(address newOwner) external onlyOwner {
        pendingOwner = newOwner;
        ownershipTransferDeadline = block.timestamp + OWNERSHIP_TRANSFER_DELAY;

        emit NewOwnerCommitted(msg.sender, newOwner, block.timestamp + OWNERSHIP_TRANSFER_DELAY);
    }

    function acceptTransferOwnership() external {
        require(msg.sender == pendingOwner, "Only new owner");
        require(block.timestamp >= ownershipTransferDeadline, "Deadline not passed");

        emit NewOwnerAccepted(owner, msg.sender);

        owner = pendingOwner;
        pendingOwner = address(0);
        ownershipTransferDeadline = 0;
    }

    function revokeTransferOwnership() external onlyOwner {
        emit NewOwnerRevoked(msg.sender, pendingOwner);

        pendingOwner = address(0);
        ownershipTransferDeadline = 0;
    }

    function getPeripheryFlashLoanFee(address periphery) external view returns (uint16) {
        FeeInfo memory info = peripheryFlashLoanFee[periphery];

        if (msg.sender == nect) {
            if (info.existsForNect) {
                return info.nectFee;
            }
        }

        return DEFAULT_FLASH_LOAN_FEE;
    }

    function getLspEntryFee(address rebalancer) external view returns (uint16) {
        if (rebalancerFee[rebalancer].exists) {
            return rebalancerFee[rebalancer].entryFee;
        } else {
            return lspEntryFee;
        }
    }

    function getLspExitFee(address rebalancer) external view returns (uint16) {
        if (rebalancerFee[rebalancer].exists) {
            return rebalancerFee[rebalancer].exitFee;
        } else {
            return lspExitFee;
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.26;

interface IMetaBeraborrowCore {
    // ---------------------------------
    // Structures
    // ---------------------------------
    struct FeeInfo {
        bool existsForNect;
        uint16 nectFee;
    }

    struct RebalancerFeeInfo {
        bool exists;
        uint16 entryFee;
        uint16 exitFee;
    }

    // ---------------------------------
    // Public constants
    // ---------------------------------
    function OWNERSHIP_TRANSFER_DELAY() external view returns (uint256);
    function DEFAULT_FLASH_LOAN_FEE() external view returns (uint16);

    // ---------------------------------
    // Public state variables
    // ---------------------------------
    function nect() external view returns (address);
    function lspEntryFee() external view returns (uint16);
    function lspExitFee() external view returns (uint16);

    function feeReceiver() external view returns (address);
    function priceFeed() external view returns (address);
    function owner() external view returns (address);
    function pendingOwner() external view returns (address);
    function ownershipTransferDeadline() external view returns (uint256);
    function manager() external view returns (address);
    function guardian() external view returns (address);
    function paused() external view returns (bool);
    function lspBootstrapPeriod() external view returns (uint64);

    // ---------------------------------
    // External functions
    // ---------------------------------
    function setFeeReceiver(address _feeReceiver) external;
    function setPriceFeed(address _priceFeed) external;
    function setGuardian(address _guardian) external;
    function setManager(address _manager) external;

    /**
     * @notice Global pause/unpause
     *         Pausing halts new deposits/borrowing across the protocol
     */
    function setPaused(bool _paused) external;

    /**
     * @notice Extend or change the LSP bootstrap period,
     *         after which certain protocol mechanics change
     */
    function setLspBootstrapPeriod(uint64 _bootstrapPeriod) external;

    /**
     * @notice Set a custom flash-loan fee for a given periphery contract
     * @param _periphery Target contract that will get this custom fee
     * @param _nectFee Fee in basis points (bp)
     * @param _existsForNect Whether this custom fee is used when the caller = `nect`
     */
    function setPeripheryFlashLoanFee(address _periphery, uint16 _nectFee, bool _existsForNect) external;

    /**
     * @notice Begin the ownership transfer process
     * @param newOwner The address proposed to be the new owner
     */
    function commitTransferOwnership(address newOwner) external;

    /**
     * @notice Finish the ownership transfer, after the mandatory delay
     */
    function acceptTransferOwnership() external;

    /**
     * @notice Revoke a pending ownership transfer
     */
    function revokeTransferOwnership() external;

    /**
     * @notice Look up a custom flash-loan fee for a specific periphery contract
     * @param peripheryContract The contract that might have a custom fee
     * @return The flash-loan fee in basis points
     */
    function getPeripheryFlashLoanFee(address peripheryContract) external view returns (uint16);

    /**
     * @notice Set / override entry & exit fees for a special rebalancer contract
     */
    function setRebalancerFee(address _rebalancer, uint16 _entryFee, uint16 _exitFee) external;

    /**
     * @notice Set the LSP entry fee globally
     * @param _fee Fee in basis points
     */
    function setEntryFee(uint16 _fee) external;

    /**
     * @notice Set the LSP exit fee globally
     * @param _fee Fee in basis points
     */
    function setExitFee(uint16 _fee) external;

    /**
     * @notice Look up the LSP entry fee for a rebalancer
     * @param rebalancer Possibly has a special fee
     * @return The entry fee in basis points
     */
    function getLspEntryFee(address rebalancer) external view returns (uint16);

    /**
     * @notice Look up the LSP exit fee for a rebalancer
     * @param rebalancer Possibly has a special fee
     * @return The exit fee in basis points
     */
    function getLspExitFee(address rebalancer) external view returns (uint16);

    // ---------------------------------
    // Events
    // ---------------------------------
    event NewOwnerCommitted(address indexed owner, address indexed pendingOwner, uint256 deadline);
    event NewOwnerAccepted(address indexed oldOwner, address indexed newOwner);
    event NewOwnerRevoked(address indexed owner, address indexed revokedOwner);

    event FeeReceiverSet(address indexed feeReceiver);
    event PriceFeedSet(address indexed priceFeed);
    event GuardianSet(address indexed guardian);
    event ManagerSet(address indexed manager);
    event PeripheryFlashLoanFee(address indexed periphery, uint16 nectFee);
    event LSPBootstrapPeriodSet(uint64 bootstrapPeriod);
    event RebalancerFees(address indexed rebalancer, uint16 entryFee, uint16 exitFee);
    event EntryFeeSet(uint16 fee);
    event ExitFeeSet(uint16 fee);
    event Paused();
    event Unpaused();
}

{
  "remappings": [
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "@openzeppelin-upgradeable/contracts/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "solady/=lib/solady/src/",
    "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "chimera/=lib/chimera/src/",
    "ds-test/=lib/chimera/lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "halmos-cheatcodes/=lib/openzeppelin-contracts-upgradeable/lib/halmos-cheatcodes/src/",
    "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "cancun",
  "viaIR": false,
  "libraries": {}
}

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

-----Decoded View---------------
Arg [0] : _owner (address): 0xCE7d3fd53C0510325B3CEbB96298522e6c538753
Arg [1] : _guardian (address): 0xCE7d3fd53C0510325B3CEbB96298522e6c538753
Arg [2] : _priceFeed (address): 0x000000000000000000000000000000000000dEaD
Arg [3] : _nect (address): 0x1cE0a25D13CE4d52071aE7e02Cf1F6606F4C79d3
Arg [4] : _feeReceiver (address): 0xCE7d3fd53C0510325B3CEbB96298522e6c538753
Arg [5] : _lspEntryFee (uint16): 50
Arg [6] : _lspExitFee (uint16): 50
Arg [7] : _lspBootstrapPeriod (uint64): 0

-----Encoded View---------------
8 Constructor Arguments found :
Arg [0] : 000000000000000000000000ce7d3fd53c0510325b3cebb96298522e6c538753
Arg [1] : 000000000000000000000000ce7d3fd53c0510325b3cebb96298522e6c538753
Arg [2] : 000000000000000000000000000000000000000000000000000000000000dead
Arg [3] : 0000000000000000000000001ce0a25d13ce4d52071ae7e02cf1f6606f4c79d3
Arg [4] : 000000000000000000000000ce7d3fd53c0510325b3cebb96298522e6c538753
Arg [5] : 0000000000000000000000000000000000000000000000000000000000000032
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000032
Arg [7] : 0000000000000000000000000000000000000000000000000000000000000000