StakeCore

{{
  "language": "Solidity",
  "sources": {
    "src/contracts/stakecore/stakecore.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {BaseUniversalToken} from "../../base/BaseUniversalToken.sol";
import {IStakeCore} from "../interfaces/IStakeCore.sol";
import {AccessControl} from "@openzeppelin/contracts/access/AccessControl.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/utils/ReentrancyGuard.sol";

/**
 * @title POS Stake Core Contract
 * @notice
 */
contract StakeCore is BaseUniversalToken, IStakeCore, AccessControl, ReentrancyGuard {
    using SafeERC20 for IERC20;

    bytes32 public constant PROVIDER_ROLE = keccak256("PROVIDER");
    bytes32 public constant STAKER_ROLE = keccak256("STAKER");
    bytes32 public constant BENEFICIARY_ROLE = keccak256("BENEFICIARY");

    bool public immutable ENABLE_STAKER_WHITE_LIST;
    bool public immutable ENABLE_BENEFICIARY_WHITE_LIST;
    uint256 public constant PRECISION = 1e18;

    uint256 public immutable LOCK_PERIOD;
    uint256 public immutable CLIFF_PERIOD;
    uint256 public immutable APY;
    uint256 public immutable INSTALLMENT_NUM;
    //uint256 public immutable principalInstallments;
    uint256 private immutable MIN_STAKE_AMOUNT;
    // total user staked amount
    uint256 public totalCollateral;
    uint256 public unstakedCollateral;

    uint256 public totalRewards;
    uint256 public totalWithdrawnRewards;
    // total security deposit amount
    uint256 public totalSecurityDeposit;

    IStakeCore.StakeInfo[] private stakeRecords;
    mapping(address => uint256[]) private userStakeIndexes; // 每个用户的质押记录

    constructor(address admin, address[] memory providers, IERC20 _token, uint256 lockPeriod, uint256 cliffPeriod, uint256 _apy, uint256 _installmentNum, uint256 _minStakeAmount, bool enableStakerWhiteList, bool enableBeneficiaryWhiteList)BaseUniversalToken(_token) {
        if (admin == address(0)) revert InvalidParameter("admin");
        if (providers.length == 0) revert InvalidParameter("providers");
        if (_installmentNum == 0) revert InvalidParameter("installmentNum");
        if (cliffPeriod > lockPeriod) revert InvalidParameter("cliffPeriod");

        ENABLE_STAKER_WHITE_LIST = enableStakerWhiteList;
        ENABLE_BENEFICIARY_WHITE_LIST = enableBeneficiaryWhiteList;
        _grantRole(DEFAULT_ADMIN_ROLE, admin);
        _setRoleAdmin(PROVIDER_ROLE, PROVIDER_ROLE);
        for (uint256 i = 0; i < providers.length; i++) {
            if (providers[i] == address(0)) revert InvalidParameter("providers");
            bool ok = _grantRole(PROVIDER_ROLE, providers[i]);
            if (!ok) revert InvalidParameter("providers");
        }
        LOCK_PERIOD = lockPeriod;
        CLIFF_PERIOD = cliffPeriod;
        APY = (_apy * PRECISION) / 100;
        MIN_STAKE_AMOUNT = _minStakeAmount;
        INSTALLMENT_NUM = _installmentNum;
    }


    modifier onlyAdmin() {
        _checkRole(DEFAULT_ADMIN_ROLE);
        _;
    }

    modifier onlyProvider() {
        _checkRole(PROVIDER_ROLE);
        _;
    }

    function depositSecurity(uint256 _amount) external payable onlyProvider nonReentrant {
        if (APY == 0) revert Forbid();
        totalSecurityDeposit += _amount;
        _receiveToken(_amount);
        emit SecurityDeposited(_amount, totalSecurityDeposit);
    }

    function withdrawSecurity(uint256 _amount) external onlyProvider nonReentrant {
        if (APY == 0) revert Forbid();
        uint256 tsd = totalSecurityDeposit;
        uint256 tr = totalRewards;
        if (tsd < tr) revert InsufficientBalance(0, _amount);
        uint256 available = tsd - tr;
        if (available < _amount) revert InsufficientBalance(available, _amount);
        tsd -= _amount;
        totalSecurityDeposit = tsd;
        _sendToken(msg.sender, _amount);
        emit SecurityWithdrawn(_amount, tsd);
    }

    /// @notice stakers stake tokens, and can stake multiple times
    function stake(address owner, uint256 _amount) external payable nonReentrant {
        if (owner == address(0)) revert InvalidParameter("owner");
        if (_amount == 0 || _amount < MIN_STAKE_AMOUNT) revert InvalidParameter("amount");
        if (ENABLE_STAKER_WHITE_LIST) {
            _checkRole(STAKER_ROLE);
        }

        if (ENABLE_BENEFICIARY_WHITE_LIST) {
            _checkRole(BENEFICIARY_ROLE, owner);
        }

        uint256 rewards;
        uint256 principal;
        if (APY == 0) {
            principal = 0;
            rewards = _amount;
        } else {
            principal = _amount;
            rewards = getSecurityDepositByCollateral(_amount);
            if (rewards + totalRewards > totalSecurityDeposit) revert InsufficientDeposit(totalSecurityDeposit - totalRewards, rewards);
        }

        totalCollateral += principal;
        totalRewards += rewards;
        _receiveToken(_amount);
        stakeRecords.push(
            StakeInfo({
                owner: owner,
                startTime: block.timestamp,
                lockPeriod: LOCK_PERIOD,
                totalPrincipal: principal,
                withdrawnPrincipal: 0,
                totalRewards: rewards,
                withdrawnRewards: 0
            })
        );

        uint256 idx = stakeRecords.length - 1;
        userStakeIndexes[owner].push(idx);
        emit Staked(owner, principal, rewards, block.timestamp, LOCK_PERIOD, idx);
    }

    function withdrawPrincipal(uint256 _index) external nonReentrant returns (uint256){
        StakeInfo storage _stake = stakeRecords[_index];
        if (_stake.owner != msg.sender) revert UnauthorizedCaller(msg.sender);
        uint256 totalUnlocked = getUnlockedInstallmentPrincipal(_index);
        if (_stake.withdrawnPrincipal >= totalUnlocked) revert NoPrincipal();
        uint256 toBeWithdrawn = totalUnlocked - _stake.withdrawnPrincipal;
        _stake.withdrawnPrincipal += toBeWithdrawn;
        unstakedCollateral += toBeWithdrawn;
        _sendToken(_stake.owner, toBeWithdrawn);
        emit PrincipalWithdrawn(_stake.owner, toBeWithdrawn, _index);
        return toBeWithdrawn;
    }

    function withdrawRewards(uint256 _index) external nonReentrant returns (uint256){
        StakeInfo storage _stake = stakeRecords[_index];
        address owner = _stake.owner;
        uint256 withdrawnRewards = _stake.withdrawnRewards;
        if (owner != msg.sender) revert UnauthorizedCaller(msg.sender);
        uint256 totalUnlocked = getUnlockedInstallmentRewards(_index);
        if (withdrawnRewards >= totalUnlocked) revert NoRewards();
        uint256 toBeWithdrawn = totalUnlocked - withdrawnRewards;
        _stake.withdrawnRewards += toBeWithdrawn;
        totalWithdrawnRewards += toBeWithdrawn;
        _sendToken(owner, toBeWithdrawn);
        emit RewardsWithdrawn(owner, toBeWithdrawn, _index);
        return toBeWithdrawn;
    }

    // collect the locked token for admin
    function collect(IERC20 erc20) external onlyAdmin nonReentrant returns (uint256) {
        if (erc20 != token()) {
            uint256 _bal;
            if (address(erc20) == address(0)) {
                _bal = address(this).balance;
                if (_bal == 0) revert NoExcessTokens();
                (bool success,) = payable(msg.sender).call{value: _bal}("");
                require(success);
            } else {
                _bal = erc20.balanceOf(address(this));
                if (_bal == 0) revert NoExcessTokens();
                erc20.safeTransfer(msg.sender, _bal);
            }

            emit ExcessCollected(address(erc20), _bal);
            return _bal;
        }

        uint256 bal = balance();
        uint256 netObligation;
        if (APY == 0) {
            netObligation = totalRewards - totalWithdrawnRewards;
        } else {
            netObligation = totalCollateral + totalSecurityDeposit
                - unstakedCollateral - totalWithdrawnRewards;
        }

        if (bal <= netObligation) revert NoExcessTokens();
        uint256 extraToken = bal - netObligation;
        _sendToken(msg.sender, extraToken);
        emit ExcessCollected(address(erc20), extraToken);
        return extraToken;
    }

    function getCollateralBySecurityDeposit(uint256 _amount) public view returns (uint256) {
        // (apy * lockPeriod / 360 days) = x days rewards rate
        // collateral * (x days rewards rate) = security deposit
        if (APY == 0) {
            return type(uint256).max;
        }
        return (_amount * PRECISION) / ((APY * LOCK_PERIOD) / 360 days);
    }

    function getSecurityDepositByCollateral(uint256 _amount) public view returns (uint256) {
        return (_amount * ((APY * LOCK_PERIOD) / 360 days)) / PRECISION;
    }

    function getUnlockedInstallmentRewards(uint256 _index) public view returns (uint256) {
        StakeInfo storage _stake = stakeRecords[_index];
        uint256 elapsedTime = block.timestamp - _stake.startTime;
        if (elapsedTime < CLIFF_PERIOD) {
            return 0;
        }

        if (elapsedTime >= LOCK_PERIOD) {
            return _stake.totalRewards;
        }

        uint256 vestWindow = LOCK_PERIOD - CLIFF_PERIOD;
        uint256 vestedTime = elapsedTime - CLIFF_PERIOD;
        uint256 unlockedPhase = (vestedTime * INSTALLMENT_NUM) / vestWindow;
        uint256 unlockedRewardsByInstallment = (_stake.totalRewards / INSTALLMENT_NUM) * unlockedPhase;
        return unlockedRewardsByInstallment;
    }

    function getUnlockedInstallmentPrincipal(uint256 _index) public view returns (uint256) {
        StakeInfo storage _stake = stakeRecords[_index];
        uint256 elapsedTime = block.timestamp - _stake.startTime;
        if (elapsedTime >= LOCK_PERIOD) {
            return _stake.totalPrincipal;
        }

        return 0;
    }

    function stakeRecordsLength() public view returns (uint256){
        return stakeRecords.length;
    }

    function getStakeRecords(uint256 _index) external view returns (StakeInfo memory){
        return stakeRecords[_index];
    }

    function getUserStakeIndexes(address owner) external view returns (uint256[]memory){
        return userStakeIndexes[owner];
    }

    function token() public view override(BaseUniversalToken, IStakeCore) returns (IERC20){
        return BaseUniversalToken.token();
    }

    function isAdmin(address addr) public view returns (bool){
        return hasRole(DEFAULT_ADMIN_ROLE, addr);
    }

    function isProvider(address addr) public view returns (bool){
        return hasRole(PROVIDER_ROLE, addr);
    }

    function isStaker(address addr) public view returns (bool){
        return hasRole(STAKER_ROLE, addr);
    }

    function isBeneficiary(address addr) public view returns (bool){
        return hasRole(BENEFICIARY_ROLE, addr);
    }

    function grantRole(bytes32 role, address account) public override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    function revokeRole(bytes32, address) public pure override {
        revert Forbid();
    }

    function renounceRole(bytes32, address) public pure override {
        revert Forbid();
    }

    function minStakeAmount() external view returns (uint256){
        return MIN_STAKE_AMOUNT;
    }

}
"
    },
    "src/base/BaseUniversalToken.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {UniversalToken} from "../Types/Structs/UniversalToken.sol";
import {LibUniversalToken} from "../libraries/LibUniversalToken.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";


abstract contract BaseUniversalToken {
    using LibUniversalToken for UniversalToken;
    using SafeERC20 for IERC20;

    UniversalToken internal immutable _TOKEN;

    constructor(IERC20 __token){
        _TOKEN = UniversalToken.wrap(address(__token));
    }

    receive() external payable {}

    function token() public view virtual returns (IERC20){
        return IERC20(UniversalToken.unwrap(_TOKEN));
    }

    function isNativeToken() public view returns (bool){
        return _TOKEN.isNativeToken();
    }

    function _sendToken(address account, uint256 amount) internal {
        _TOKEN.sendToken(account, amount);
    }

    function _receiveToken(uint256 amount) internal {
        uint256 received = _TOKEN.receiveToken(amount);
        if (received != amount) revert LibUniversalToken.ERC20ReceiveMismatch(amount, received);
    }

    function balance() public view returns (uint256){
        return _TOKEN.balanceOf(address(this));
    }

    function decimals() public view returns (uint8){
        return _TOKEN.decimals();
    }
}"
    },
    "src/contracts/interfaces/IStakeCore.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {BaseError} from "./BaseError.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";


interface IStakeCore is BaseError {
    error InsufficientBalance(uint256 balance, uint256 needed);
    error InsufficientDeposit(uint256 balance, uint256 needed);
    error NoRewards();
    error NoPrincipal();
    error NoExcessTokens();

    event Staked(address  staker, uint256 principal, uint256 rewards, uint256 startTime, uint256 lockPeriod, uint256 index);
    event PrincipalWithdrawn(address  staker, uint256 amount, uint256 index);
    event RewardsWithdrawn(address  staker, uint256 amount, uint256 index);
    event SecurityDeposited(uint256 amount, uint256 totalSecurity);
    event SecurityWithdrawn(uint256 amount, uint256 remainingSecurity);
    event ExcessCollected(address erc20, uint256 extraToken);

    struct StakeInfo {
        address owner;
        uint256 startTime;
        uint256 lockPeriod;
        uint256 totalPrincipal;
        uint256 withdrawnPrincipal;
        uint256 totalRewards;
        uint256 withdrawnRewards;
    }

    function depositSecurity(uint256 _amount) external payable;

    function stake(address, uint256) external payable;

    function withdrawPrincipal(uint256) external returns (uint256);

    function withdrawRewards(uint256) external returns (uint256);

    function minStakeAmount() external returns (uint256);

    function getUserStakeIndexes(address) external returns (uint256[]memory);

    function getStakeRecords(uint256) external returns (StakeInfo memory);

    function token() external returns (IERC20);

    function CLIFF_PERIOD() external returns(uint256);

    function getSecurityDepositByCollateral(uint256 amount) external view returns (uint256);
}"
    },
    "lib/openzeppelin-contracts/contracts/access/AccessControl.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol)

pragma solidity ^0.8.20;

import {IAccessControl} from "./IAccessControl.sol";
import {Context} from "../utils/Context.sol";
import {ERC165} from "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```solidity
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```solidity
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
 * to enforce additional security measures for this role.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address account => bool) hasRole;
        bytes32 adminRole;
    }

    mapping(bytes32 role => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with an {AccessControlUnauthorizedAccount} error including the required role.
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual returns (bool) {
        return _roles[role].hasRole[account];
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
     * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
     * is missing `role`.
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert AccessControlUnauthorizedAccount(account, role);
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address callerConfirmation) public virtual {
        if (callerConfirmation != _msgSender()) {
            revert AccessControlBadConfirmation();
        }

        _revokeRole(role, callerConfirmation);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
        if (!hasRole(role, account)) {
            _roles[role].hasRole[account] = true;
            emit RoleGranted(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
        if (hasRole(role, account)) {
            _roles[role].hasRole[account] = false;
            emit RoleRevoked(role, account, _msgSender());
            return true;
        } else {
            return false;
        }
    }
}
"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}
"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    /**
     * @dev An operation with an ERC-20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     *
     * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
     * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
     * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
     * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     *
     * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
     * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
     * set here.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            safeTransfer(token, to, value);
        } else if (!token.transferAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
     * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferFromAndCallRelaxed(
        IERC1363 token,
        address from,
        address to,
        uint256 value,
        bytes memory data
    ) internal {
        if (to.code.length == 0) {
            safeTransferFrom(token, from, to, value);
        } else if (!token.transferFromAndCall(from, to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            // bubble errors
            if iszero(success) {
                let ptr := mload(0x40)
                returndatacopy(ptr, 0, returndatasize())
                revert(ptr, returndatasize())
            }
            returnSize := returndatasize()
            returnValue := mload(0)
        }

        if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silently catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly ("memory-safe") {
            success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0)
        }
        return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
    }
}
"
    },
    "lib/openzeppelin-contracts/contracts/utils/ReentrancyGuard.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If EIP-1153 (transient storage) is available on the chain you're deploying at,
 * consider using {ReentrancyGuardTransient} instead.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    uint256 private _status;

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

    constructor() {
        _status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if (_status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        _status = ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == ENTERED;
    }
}
"
    },
    "src/Types/Structs/UniversalToken.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;



    type UniversalToken is address;
"
    },
    "src/libraries/LibUniversalToken.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {UniversalToken} from "../Types/Structs/UniversalToken.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";

library LibUniversalToken {
    using SafeERC20 for IERC20;

    error WrongMsgValue(uint256 expected, uint256 got);
    error NativeTransferFailed();
    error ERC20ReceiveMismatch(uint256 expected, uint256 received);

    function isNativeToken(UniversalToken uToken) internal pure returns (bool){
        return UniversalToken.unwrap(uToken) == address(0);
    }
    /// @notice 收币（ETH 或 ERC20）。返回“实际收到”的数量
    function receiveToken(UniversalToken uToken, uint256 amount)
    internal
    returns (uint256 received)
    {
        if (isNativeToken(uToken)) {
            if (msg.value != amount) revert WrongMsgValue(amount, msg.value);
            return amount;
        } else {
            if (msg.value != 0) revert WrongMsgValue(0, msg.value);
            uint256 beforeBal = IERC20(UniversalToken.unwrap(uToken)).balanceOf(address(this));
            IERC20(UniversalToken.unwrap(uToken)).safeTransferFrom(msg.sender, address(this), amount);
            uint256 afterBal = IERC20(UniversalToken.unwrap(uToken)).balanceOf(address(this));
            received = afterBal - beforeBal;
            return received;
        }
    }

    /// @notice 转币（ETH 或 ERC20）。
    function sendToken(UniversalToken uToken, address account, uint256 amount) internal {
        if (isNativeToken(uToken)) {
            (bool success,) = payable(account).call{value: amount}("");
            if (!success) revert NativeTransferFailed();
        } else {
            IERC20(UniversalToken.unwrap(uToken)).safeTransfer(account, amount);
        }
    }

    /// @notice 查询任意账户余额
    function balanceOf(UniversalToken uToken, address account) internal view returns (uint256) {
        if (isNativeToken(uToken)) {
            return account.balance;
        } else {
            return IERC20(UniversalToken.unwrap(uToken)).balanceOf(account);
        }
    }

    function decimals(UniversalToken uToken) internal view returns (uint8){
        if (isNativeToken(uToken)) {
            uint256 one = 1 ether;
            uint8 _decimals = 0;
            while (one > 1) {
                one /= 10;
                _decimals++;
            }
            return _decimals;
        } else {
            return IERC20Metadata(UniversalToken.unwrap(uToken)).decimals();
        }
    }
}"
    },
    "src/contracts/interfaces/BaseError.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;


interface BaseError {
    error InvalidParameter(string key);
    error UnauthorizedCaller(address);
    error Forbid();
}"
    },
    "lib/openzeppelin-contracts/contracts/access/IAccessControl.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (access/IAccessControl.sol)

pragma solidity ^0.8.20;

/**
 * @dev External interface of AccessControl declared to support ERC-165 detection.
 */
interface IAccessControl {
    /**
     * @dev The `account` is missing a role.
     */
    error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);

    /**
     * @dev The caller of a function is not the expected one.
     *
     * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
     */
    error AccessControlBadConfirmation();

    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call. This account bears the admin role (for the granted role).
     * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `callerConfirmation`.
     */
    function renounceRole(bytes32 role, address callerConfirmation) external;
}
"
    },
    "lib/openzeppelin-contracts/contracts/utils/Context.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
"
    },
    "lib/openzeppelin-contracts/contracts/utils/introspection/ERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/ERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC-165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}
"
    },
    "lib/openzeppelin-contracts/contracts/interfaces/IERC1363.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (interfaces/IERC1363.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";

/**
 * @title IERC1363
 * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
 *
 * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
 * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0xb0202a11.
     * 0xb0202a11 ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}
"
    },
    "lib/openzeppelin-contracts/contracts/utils/Address.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Address.sol)

pragma solidity ^0.8.20;

import {Errors} from "./Errors.sol";

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert Errors.InsufficientBalance(address(this).balance, amount);
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert Errors.FailedCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {Errors.FailedCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert Errors.InsufficientBalance(address(this).balance, value);
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {Errors.FailedCall}) in case
     * of an unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {Errors.FailedCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {Errors.FailedCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            assembly ("memory-safe") {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert Errors.FailedCall();
        }
    }
}
"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/IERC20Metadata.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC-20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}
"
    },
    "lib/openzeppelin-contracts/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
"
    },
    "lib/openzeppelin-contracts/contracts/interfaces/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../token/ERC20/IERC20.sol";
"
    },
    "lib/openzeppelin-contracts/contracts/interfaces/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../utils/introspection/IERC165.sol";
"
    },
    "lib/openzeppelin-contracts/contracts/utils/Errors.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/Errors.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of common custom errors used in multiple contracts
 *
 * IMPORTANT: Backwards compatibility is not guaranteed in future versions of the library.
 * It is recommended to avoid relying on the error API for critical functionality.
 *
 * _Available since v5.1._
 */
library Errors {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error InsufficientBalance(uint256 balance, uint256 needed);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedCall();

    /**
     * @dev The deployment failed.
     */
    error FailedDeployment();

    /**
     * @dev A necessary precompile is missing.
     */
    error MissingPrecompile(address);
}
"
    }
  },
  "settings": {
    "remappings": [
      "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
      "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
      "ds-test/=lib/forge-std/lib/ds-test/src/",
      "forge-std/=lib/forge-std/src/",
      "@solmate-utils/=lib/solmate/src/utils/",
      "buffer/=lib/forge-std/lib/buffer/contracts/",
      "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
      "filecoin-solidity/=lib/forge-std/lib/filecoin-solidity/",
      "halmos-cheatcodes/=lib/openzeppelin-contracts-upgradeable/lib/halmos-cheatcodes/src/",
      "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
      "openzeppelin-contracts/=lib/openzeppelin-contracts/",
      "openzeppelin-foundry-upgrades/=lib/openzeppelin-foundry-upgrades/src/",
      "solidity-cborutils/=lib/forge-std/lib/solidity-cborutils/contracts/",
      "solidity-stringutils/=lib/openzeppelin-foundry-upgrades/lib/solidity-stringutils/"
    ],
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "metadata": {
      "useLiteralContent": false,
      "bytecodeHash": "ipfs",
      "appendCBOR": true
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "evmVersion": "cancun",
    "viaIR": true
  }
}}