TestEpochVault24h

{{
  "language": "Solidity",
  "sources": {
    "@openzeppelin/contracts/access/Ownable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
"
    },
    "@openzeppelin/contracts/interfaces/IERC1363.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC1363.sol)

pragma solidity >=0.6.2;

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);
}
"
    },
    "@openzeppelin/contracts/interfaces/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC165.sol)

pragma solidity >=0.4.16;

import {IERC165} from "../utils/introspection/IERC165.sol";
"
    },
    "@openzeppelin/contracts/interfaces/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/IERC20.sol)

pragma solidity >=0.4.16;

import {IERC20} from "../token/ERC20/IERC20.sol";
"
    },
    "@openzeppelin/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)

pragma solidity >=0.4.16;

/**
 * @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);
}
"
    },
    "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.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 Variant of {safeTransfer} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransfer(IERC20 token, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Variant of {safeTransferFrom} that returns a bool instead of reverting if the operation is not successful.
     */
    function trySafeTransferFrom(IERC20 token, address from, address to, uint256 value) internal returns (bool) {
        return _callOptionalReturnBool(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);
    }
}
"
    },
    "@openzeppelin/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;
    }
}
"
    },
    "@openzeppelin/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.4.0) (utils/introspection/IERC165.sol)

pragma solidity >=0.4.16;

/**
 * @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);
}
"
    },
    "@openzeppelin/contracts/utils/Pausable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.3.0) (utils/Pausable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    bool private _paused;

    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    /**
     * @dev The operation failed because the contract is paused.
     */
    error EnforcedPause();

    /**
     * @dev The operation failed because the contract is not paused.
     */
    error ExpectedPause();

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        if (paused()) {
            revert EnforcedPause();
        }
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        if (!paused()) {
            revert ExpectedPause();
        }
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}
"
    },
    "@openzeppelin/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;
    }
}
"
    },
    "contracts/TestEpochVault24h.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/Pausable.sol";

/**
 * @title TestEpochVault24h
 * @notice Test version of EpochVault with 2-hour epochs for 24-hour testing
 * @dev This contract is designed for testing and development only
 *      - 2-hour epochs (12 epochs per day)
 *      - 1-day withdrawal lock
 *      - 1% per epoch (12% over 24 hours)
 */
contract TestEpochVault24h is Ownable, ReentrancyGuard, Pausable {
    using SafeERC20 for IERC20;

    // ============ Constants ============
    uint256 public constant EPOCH_DURATION = 2 hours; // 2 hours for testing
    uint256 public constant WITHDRAWAL_LOCK_PERIOD = 1 days; // 1 day lock for testing
    uint256 public constant BASIS_POINTS = 10000;
    uint256 public constant PRECISION = 1e18;

    // ============ State Variables ============
    IERC20 public immutable asset;

    // Epoch management
    uint256 public currentEpoch;
    uint256 public epochStartTime;

    // APR configuration (in basis points, e.g., 100 = 1%)
    uint256 public monthlyAPR = 100; // 1% per epoch for 24h test vault

    // Total deposits tracking
    uint256 public totalDeposits;

    // Epoch snapshots for reward calculation
    struct EpochSnapshot {
        uint256 totalDepositsAtStart;
        uint256 rewardsDistributed;
        uint256 rewardPerToken;
        bool rewardsSet;
        uint256 timestamp;
    }

    // User information
    struct UserInfo {
        uint256 depositAmount;
        uint256 lastClaimedEpoch;
        uint256 pendingRewards;
        uint256 lastDepositEpoch;
        uint256 firstDepositTime; // For withdrawal lock
    }

    // Storage
    mapping(uint256 => EpochSnapshot) public epochSnapshots;
    mapping(address => UserInfo) public userInfo;
    mapping(uint256 => mapping(address => uint256)) public userEpochBalances;
    mapping(address => bool) public isDepositor;
    address[] public depositors;

    // Whitelist functionality
    bool public whitelistEnabled;
    mapping(address => bool) public whitelist;

    // Access control
    address public immutable rewardDepositor;
    address public immutable authorizedWithdrawalAddress;
    address public immutable adminDepositor;

    // ============ Events ============
    event Deposit(address indexed user, uint256 amount, uint256 epoch);
    event Withdrawal(address indexed user, uint256 amount, uint256 epoch);
    event RewardsClaimed(address indexed user, uint256 amount, uint256 epoch);
    event EpochAdvanced(uint256 indexed newEpoch, uint256 timestamp);
    event RewardsDistributed(uint256 indexed epoch, uint256 amount);
    event WhitelistUpdated(address indexed user, bool status);
    event Redeposit(address indexed user, uint256 amount, uint256 newBalance);

    // ============ Errors ============
    error InvalidAmount();
    error InsufficientBalance();
    error WithdrawalLocked();
    error UnauthorizedRewardDepositor();
    error UnauthorizedWithdrawal();
    error UnauthorizedAdminDepositor();
    error WhitelistRequired();
    error NoDeposits();
    error RewardsAlreadySet();
    error RewardsNotSet();

    // ============ Modifiers ============
    modifier onlyRewardDepositor() {
        if (msg.sender != rewardDepositor) revert UnauthorizedRewardDepositor();
        _;
    }

    modifier onlyAuthorizedWithdrawal() {
        if (msg.sender != authorizedWithdrawalAddress) revert UnauthorizedWithdrawal();
        _;
    }

    modifier onlyAdminDepositor() {
        if (msg.sender != adminDepositor) revert UnauthorizedAdminDepositor();
        _;
    }

    modifier whenWhitelisted(address user) {
        if (whitelistEnabled && !whitelist[user]) revert WhitelistRequired();
        _;
    }

    // ============ Constructor ============
    constructor(
        address _asset,
        address _owner
    ) Ownable(_owner) {
        if (_asset == address(0)) revert InvalidAmount();

        asset = IERC20(_asset);
        whitelistEnabled = false; // Whitelist disabled by default

        // Hardcoded addresses for testing
        rewardDepositor = 0x3F73DF516a501835F3BB46AF3cA669945597988D;
        authorizedWithdrawalAddress = 0x51a99B1C95269065a545a2A8E5aF68438804c88b;
        adminDepositor = 0x2d206F87528aed3a09f0F172d404DE7B5dC669C2;
    
        // Initialize first epoch
        currentEpoch = 1;
        epochStartTime = block.timestamp;

        epochSnapshots[currentEpoch] = EpochSnapshot({
            totalDepositsAtStart: 0,
            rewardsDistributed: 0,
            rewardPerToken: 0,
            rewardsSet: false,
            timestamp: block.timestamp
        });
    }

    // ============ User Functions ============
    /**
     * @notice Deposit assets into the vault
     */
    function deposit(uint256 amount) external nonReentrant whenNotPaused whenWhitelisted(msg.sender) {
        if (amount == 0) revert InvalidAmount();

        // Update user rewards before deposit
        _updateUserRewards(msg.sender);

        // Transfer assets from user
        asset.safeTransferFrom(msg.sender, address(this), amount);

        // Update user info
        UserInfo storage user = userInfo[msg.sender];
        if (user.depositAmount == 0) {
            // New depositor
            user.firstDepositTime = block.timestamp;
            if (!isDepositor[msg.sender]) {
                depositors.push(msg.sender);
                isDepositor[msg.sender] = true;
            }
        }

        user.depositAmount += amount;
        user.lastDepositEpoch = currentEpoch;

        // Update total deposits
        totalDeposits += amount;

        // Update current epoch balance
        userEpochBalances[currentEpoch][msg.sender] = user.depositAmount;

        emit Deposit(msg.sender, amount, currentEpoch);
    }

    /**
     * @notice Withdraw assets from the vault
     */
    function withdraw(uint256 amount) external nonReentrant whenNotPaused {
        if (amount == 0) revert InvalidAmount();

        UserInfo storage user = userInfo[msg.sender];
        if (user.depositAmount < amount) revert InsufficientBalance();

        // Check withdrawal lock
        if (block.timestamp < user.firstDepositTime + WITHDRAWAL_LOCK_PERIOD) {
            revert WithdrawalLocked();
        }

        // Update user rewards before withdrawal
        _updateUserRewards(msg.sender);

        // Update user info
        user.depositAmount -= amount;

        // Update total deposits
        totalDeposits -= amount;

        // Transfer assets to user
        asset.safeTransfer(msg.sender, amount);

        emit Withdrawal(msg.sender, amount, currentEpoch);
    }

    /**
     * @notice Claim pending rewards
     */
    function claimRewards() external nonReentrant {
        _updateUserRewards(msg.sender);

        UserInfo storage user = userInfo[msg.sender];
        uint256 rewards = user.pendingRewards;

        if (rewards > 0) {
            user.pendingRewards = 0;
            asset.safeTransfer(msg.sender, rewards);

            emit RewardsClaimed(msg.sender, rewards, currentEpoch);
        }
    }

    /**
     * @notice Redeposit pending rewards to compound
     */
    function redeposit() external nonReentrant whenNotPaused {
        _updateUserRewards(msg.sender);

        UserInfo storage user = userInfo[msg.sender];
        uint256 rewards = user.pendingRewards;

        if (rewards == 0) revert InvalidAmount();

        // Add rewards to deposit amount
        user.pendingRewards = 0;
        user.depositAmount += rewards;
        user.lastDepositEpoch = currentEpoch;

        // Update total deposits
        totalDeposits += rewards;

        // Update current epoch balance
        userEpochBalances[currentEpoch][msg.sender] = user.depositAmount;

        emit Redeposit(msg.sender, rewards, user.depositAmount);
    }

    // ============ Admin Functions ============
    /**
     * @notice Distribute rewards for the current epoch
     */
    function distributeRewards(uint256 rewardAmount) external onlyRewardDepositor {
        if (rewardAmount == 0) revert InvalidAmount();

        EpochSnapshot storage snapshot = epochSnapshots[currentEpoch];
        if (snapshot.rewardsSet) revert RewardsAlreadySet();

        if (snapshot.totalDepositsAtStart == 0) revert NoDeposits();

        // Transfer rewards from depositor
        asset.safeTransferFrom(msg.sender, address(this), rewardAmount);

        // Calculate reward per token
        snapshot.rewardPerToken = (rewardAmount * PRECISION) / snapshot.totalDepositsAtStart;
        snapshot.rewardsDistributed = rewardAmount;
        snapshot.rewardsSet = true;

        emit RewardsDistributed(currentEpoch, rewardAmount);
    }

    /**
     * @notice Advance to the next epoch
     */
    function advanceEpoch() external {
        if (!shouldAdvanceEpoch()) revert InvalidAmount();

        // Take snapshot of current state
        EpochSnapshot storage currentSnapshot = epochSnapshots[currentEpoch];
        currentSnapshot.totalDepositsAtStart = totalDeposits;

        // Advance epoch
        currentEpoch++;
        epochStartTime = block.timestamp;

        // Initialize new epoch snapshot
        epochSnapshots[currentEpoch] = EpochSnapshot({
            totalDepositsAtStart: 0,
            rewardsDistributed: 0,
            rewardPerToken: 0,
            rewardsSet: false,
            timestamp: block.timestamp
        });

        // Carry forward all existing user balances to new epoch
        for (uint256 i = 0; i < depositors.length; i++) {
            address user = depositors[i];
            UserInfo storage userInfo_ = userInfo[user];
            if (userInfo_.depositAmount > 0) {
                userEpochBalances[currentEpoch][user] = userInfo_.depositAmount;
            }
        }

        emit EpochAdvanced(currentEpoch, block.timestamp);
    }

    /**
     * @notice Admin withdrawal function
     */
    function adminWithdraw(uint256 amount) external onlyAuthorizedWithdrawal {
        if (amount == 0) revert InvalidAmount();
        if (amount > totalDeposits) revert InsufficientBalance();

        totalDeposits -= amount;
        asset.safeTransfer(msg.sender, amount);
    }

    /**
     * @notice Admin deposit function
     */
    function adminDeposit(uint256 amount) external onlyAdminDepositor {
        if (amount == 0) revert InvalidAmount();

        asset.safeTransferFrom(msg.sender, address(this), amount);
        totalDeposits += amount;
    }

    /**
     * @notice Emergency withdrawal function for owner (testing purposes)
     * @dev This function allows the owner to withdraw all funds for testing
     */
    function emergencyWithdrawAll() external onlyOwner {
        uint256 contractBalance = asset.balanceOf(address(this));
        
        if (contractBalance > 0) {
            // Reset total deposits to 0
            totalDeposits = 0;
            
            // Transfer all USDC to owner
            asset.safeTransfer(msg.sender, contractBalance);
        }
    }

    /**
     * @notice Set whitelist status for a user
     */
    function setWhitelistStatus(address user, bool status) external onlyOwner {
        whitelist[user] = status;
        emit WhitelistUpdated(user, status);
    }

    /**
     * @notice Enable/disable whitelist
     */
    function setWhitelistEnabled(bool enabled) external onlyOwner {
        whitelistEnabled = enabled;
    }

    /**
     * @notice Pause the contract
     */
    function pause() external onlyOwner {
        _pause();
    }

    /**
     * @notice Unpause the contract
     */
    function unpause() external onlyOwner {
        _unpause();
    }

    // ============ View Functions ============
    /**
     * @notice Check if epoch should advance
     */
    function shouldAdvanceEpoch() public view returns (bool) {
        return block.timestamp >= epochStartTime + EPOCH_DURATION;
    }

    /**
     * @notice Get pending rewards for a user
     */
    function pendingRewards(address user) external view returns (uint256) {
        UserInfo storage userInfo_ = userInfo[user];
        uint256 totalPending = userInfo_.pendingRewards;

        // Calculate rewards from completed epochs
        for (uint256 epoch = userInfo_.lastClaimedEpoch + 1; epoch < currentEpoch; epoch++) {
            EpochSnapshot storage snapshot = epochSnapshots[epoch];
            if (snapshot.rewardsSet) {
                uint256 userBalance = userEpochBalances[epoch][user];
                if (userBalance > 0) {
                    totalPending += (userBalance * snapshot.rewardPerToken) / PRECISION;
                }
            }
        }

        return totalPending;
    }

    /**
     * @notice Calculate expected rewards for an amount (1% per epoch)
     */
    function calculateExpectedRewards(uint256 amount) external pure returns (uint256) {
        // Return exactly 1% per epoch (100 basis points)
        return (amount * 100) / BASIS_POINTS;
    }

    /**
     * @notice Get the APR per epoch (1% for 24h test vault)
     */
    function getEpochAPR() external pure returns (uint256) {
        return 100; // 1% per epoch
    }

    /**
     * @notice Get the total APR over 24 hours (12 epochs)
     */
    function get24HourAPR() external pure returns (uint256) {
        return 1200; // 12% over 24 hours (1% × 12 epochs)
    }

    /**
     * @notice Get approximate annual APR (shows 24-hour equivalent)
     */
    function getAnnualAPR() external pure returns (uint256) {
        // For 24h test vault, show the 24-hour APR (12%)
        return 1200; // 12% over 24 hours
    }

    /**
     * @notice Get number of epochs per day
     */
    function getEpochsPerDay() external pure returns (uint256) {
        return 12; // 24 hours / 2 hours = 12 epochs
    }

    /**
     * @notice Get epoch duration (2 hours for testing)
     */
    function getEpochDuration() external pure returns (uint256) {
        return EPOCH_DURATION;
    }

    /**
     * @notice Get withdrawal lock period (1 day for testing)
     */
    function getWithdrawalLockPeriod() external pure returns (uint256) {
        return WITHDRAWAL_LOCK_PERIOD;
    }

    /**
     * @notice Get current number of depositors
     */
    function getDepositorCount() external view returns (uint256) {
        return depositors.length;
    }

    /**
     * @notice Get user information for testing
     */
    function getUserInfo(address user) external view returns (
        uint256 depositAmount,
        uint256 lastClaimedEpoch,
        uint256 pendingRewards_
    ) {
        UserInfo storage userInfo_ = userInfo[user];
        return (
            userInfo_.depositAmount,
            userInfo_.lastClaimedEpoch,
            this.pendingRewards(user)
        );
    }

    /**
     * @notice Check if user can redeposit
     */
    function canRedeposit(address user) external view returns (bool) {
        return this.pendingRewards(user) > 0;
    }

    // ============ Internal Functions ============
    /**
     * @notice Update user rewards up to current epoch
     */
    function _updateUserRewards(address user) internal {
        UserInfo storage userInfo_ = userInfo[user];
        uint256 totalPending = userInfo_.pendingRewards;

        // Calculate rewards from completed epochs
        for (uint256 epoch = userInfo_.lastClaimedEpoch + 1; epoch < currentEpoch; epoch++) {
            EpochSnapshot storage snapshot = epochSnapshots[epoch];
            if (snapshot.rewardsSet) {
                uint256 userBalance = userEpochBalances[epoch][user];
                if (userBalance > 0) {
                    totalPending += (userBalance * snapshot.rewardPerToken) / PRECISION;
                }
            }
        }

        userInfo_.pendingRewards = totalPending;
        userInfo_.lastClaimedEpoch = currentEpoch - 1;
    }
}"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "evmVersion": "paris",
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  }
}}