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// SPDX-License-Identifier: MIT
pragma solidity 0.8.28;

import { Clones } from "@openzeppelin/contracts/proxy/Clones.sol";
import { Address } from "@openzeppelin/contracts/utils/Address.sol";
import { EnumerableSet } from "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import { ReentrancyGuard } from "@openzeppelin/contracts/utils/ReentrancyGuard.sol";

import { IStakingBase } from "./interfaces/templates/base/IStakingBase.sol";
import { IStakingFactory } from "./interfaces/IStakingFactory.sol";

/// @title Factory to deploy staking protocol templates
/// @author 0xdEaF <[email protected]>
/// @notice each staking template has its own factory. It's using cloning to make a contract creation as cheap as possible
contract StakingFactory is IStakingFactory, ReentrancyGuard {
    using EnumerableSet for EnumerableSet.AddressSet;

    /// @notice address of the staking template
    address public immutable implementation;

    /// @dev keeps track of the protocol that is deployed by a certain service provider
    mapping(address deployer => EnumerableSet.AddressSet protocol) private _protocols;

    /// @dev stores all protocols
    address[] private allProtocols;

    /// Construct
    /// @param _implementation address of the staking template
    constructor(address _implementation) {
        if (_implementation == address(0)) revert StakingFactory__AddressZero();
        implementation = _implementation;
    }

    /// @inheritdoc IStakingFactory
    function createStaking(StakingCreateParams calldata _params) external payable nonReentrant returns (address _stakingProtocol) {
        if (_params.deployer == address(0)) revert StakingFactory__AddressZero();
        _stakingProtocol = Clones.clone(implementation);
        IStakingBase(_stakingProtocol).initialize(_params.stakingToken, _params.owner, _params.args);
        allProtocols.push(_stakingProtocol);
        _protocols[_params.deployer].add(_stakingProtocol);
        if (msg.value > 0) Address.sendValue(payable(_params.deployer), msg.value);
        emit Created(_params.deployer, _params.owner, _stakingProtocol, msg.value);
    }

    /// @inheritdoc IStakingFactory
    function getProtocols(uint256 _limit, uint256 _offset) external view returns (address[] memory _response, uint256 _count) {
        _count = getProtocolsCount();
        _limit = _maxLimit(_limit, _offset, _count);
        _response = new address[](_limit);
        for (uint256 _start = 0; _start + _offset < _limit + _offset; _start++) _response[_start] = allProtocols[_start + _offset];
    }

    /// @inheritdoc IStakingFactory
    function getProtocolsCount() public view returns (uint256 _count) {
        _count = allProtocols.length;
    }

    /// @inheritdoc IStakingFactory
    function getProtocolsForDeployer(
        address _deployer,
        uint256 _limit,
        uint256 _offset
    ) external view returns (address[] memory _response, uint256 _count) {
        _count = getProtocolsForDeployerCount(_deployer);
        _limit = _maxLimit(_limit, _offset, _count);
        _response = new address[](_limit);
        for (uint256 _start = 0; _start + _offset < _limit + _offset; _start++)
            _response[_start] = _protocols[_deployer].at(_start + _offset);
    }

    /// @inheritdoc IStakingFactory
    function getProtocolsForDeployerCount(address _deployer) public view returns (uint256 _count) {
        _count = _protocols[_deployer].length();
    }

    /// Helper function to figure out the max limit of a list
    /// @param limit limit that has been targeted
    /// @param offset offset that has been targeted
    /// @param count the amount of entries the calculation should be based on
    /// @dev is used to not overflow the possible available limits of a list
    function _maxLimit(uint256 limit, uint256 offset, uint256 count) internal pure returns (uint256) {
        if (limit + offset > count && offset < count) return count - offset;
        else if (limit + offset <= count) return limit;
        else return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (proxy/Clones.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev https://eips.ethereum.org/EIPS/eip-1167[ERC-1167] is a standard for
 * deploying minimal proxy contracts, also known as "clones".
 *
 * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies
 * > a minimal bytecode implementation that delegates all calls to a known, fixed address.
 *
 * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2`
 * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the
 * deterministic method.
 */
library Clones {
    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
     *
     * This function uses the create opcode, which should never revert.
     */
    function clone(address implementation) internal returns (address instance) {
        return clone(implementation, 0);
    }

    /**
     * @dev Same as {xref-Clones-clone-address-}[clone], but with a `value` parameter to send native currency
     * to the new contract.
     *
     * NOTE: Using a non-zero value at creation will require the contract using this function (e.g. a factory)
     * to always have enough balance for new deployments. Consider exposing this function under a payable method.
     */
    function clone(address implementation, uint256 value) internal returns (address instance) {
        if (address(this).balance < value) {
            revert Errors.InsufficientBalance(address(this).balance, value);
        }
        assembly ("memory-safe") {
            // Cleans the upper 96 bits of the `implementation` word, then packs the first 3 bytes
            // of the `implementation` address with the bytecode before the address.
            mstore(0x00, or(shr(0xe8, shl(0x60, implementation)), 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000))
            // Packs the remaining 17 bytes of `implementation` with the bytecode after the address.
            mstore(0x20, or(shl(0x78, implementation), 0x5af43d82803e903d91602b57fd5bf3))
            instance := create(value, 0x09, 0x37)
        }
        if (instance == address(0)) {
            revert Errors.FailedDeployment();
        }
    }

    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
     *
     * This function uses the create2 opcode and a `salt` to deterministically deploy
     * the clone. Using the same `implementation` and `salt` multiple time will revert, since
     * the clones cannot be deployed twice at the same address.
     */
    function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) {
        return cloneDeterministic(implementation, salt, 0);
    }

    /**
     * @dev Same as {xref-Clones-cloneDeterministic-address-bytes32-}[cloneDeterministic], but with
     * a `value` parameter to send native currency to the new contract.
     *
     * NOTE: Using a non-zero value at creation will require the contract using this function (e.g. a factory)
     * to always have enough balance for new deployments. Consider exposing this function under a payable method.
     */
    function cloneDeterministic(
        address implementation,
        bytes32 salt,
        uint256 value
    ) internal returns (address instance) {
        if (address(this).balance < value) {
            revert Errors.InsufficientBalance(address(this).balance, value);
        }
        assembly ("memory-safe") {
            // Cleans the upper 96 bits of the `implementation` word, then packs the first 3 bytes
            // of the `implementation` address with the bytecode before the address.
            mstore(0x00, or(shr(0xe8, shl(0x60, implementation)), 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000))
            // Packs the remaining 17 bytes of `implementation` with the bytecode after the address.
            mstore(0x20, or(shl(0x78, implementation), 0x5af43d82803e903d91602b57fd5bf3))
            instance := create2(value, 0x09, 0x37, salt)
        }
        if (instance == address(0)) {
            revert Errors.FailedDeployment();
        }
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(
        address implementation,
        bytes32 salt,
        address deployer
    ) internal pure returns (address predicted) {
        assembly ("memory-safe") {
            let ptr := mload(0x40)
            mstore(add(ptr, 0x38), deployer)
            mstore(add(ptr, 0x24), 0x5af43d82803e903d91602b57fd5bf3ff)
            mstore(add(ptr, 0x14), implementation)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73)
            mstore(add(ptr, 0x58), salt)
            mstore(add(ptr, 0x78), keccak256(add(ptr, 0x0c), 0x37))
            predicted := and(keccak256(add(ptr, 0x43), 0x55), 0xffffffffffffffffffffffffffffffffffffffff)
        }
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(
        address implementation,
        bytes32 salt
    ) internal view returns (address predicted) {
        return predictDeterministicAddress(implementation, salt, address(this));
    }
}

// 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();
        }
    }
}

// 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);
}

// 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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity ^0.8.20;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```solidity
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position is the index of the value in the `values` array plus 1.
        // Position 0 is used to mean a value is not in the set.
        mapping(bytes32 value => uint256) _positions;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._positions[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We cache the value's position to prevent multiple reads from the same storage slot
        uint256 position = set._positions[value];

        if (position != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 valueIndex = position - 1;
            uint256 lastIndex = set._values.length - 1;

            if (valueIndex != lastIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the lastValue to the index where the value to delete is
                set._values[valueIndex] = lastValue;
                // Update the tracked position of the lastValue (that was just moved)
                set._positions[lastValue] = position;
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the tracked position for the deleted slot
            delete set._positions[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._positions[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        bytes32[] memory store = _values(set._inner);
        bytes32[] memory result;

        assembly ("memory-safe") {
            result := store
        }

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        assembly ("memory-safe") {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        assembly ("memory-safe") {
            result := store
        }

        return result;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.28;

/// @title Interface of the factory that is creating the staking protocols
/// @author 0xdEaF <[email protected]>
/// @notice each protocol will have its own factory
interface IStakingFactory {
    error StakingFactory__AddressZero();

    /// Create protocol event
    /// @param deployer the address that should identify the service provider
    /// @param owner address of the desired owner
    /// @param protocol address of the created protocol
    /// @param paid msg.value that has been sent to the create method in order to pay for creation
    /// @dev msg.value will be send to address of deployer
    event Created(address indexed deployer, address indexed owner, address indexed protocol, uint256 paid);

    struct StakingCreateParams {
        /// @dev address of the staking token
        address stakingToken;
        /// @dev address of the service provider that handles the deployment
        address deployer;
        /// @dev address of the desired owner
        address owner;
        /// @dev encoded string that can be handled by any future staking template being created
        bytes args;
    }

    /// Creates a new staking protocol based on a given template
    /// @param params parameters for the creation of the new protocol
    function createStaking(StakingCreateParams calldata params) external payable returns (address stakingProtocol);

    /// Returns a list of protocols addresses and the number of available protocols
    /// @param limit amount of addresses
    /// @param offset index to start from until limit
    /// @return response list of addresses
    /// @return count total amount of protocols
    function getProtocols(uint256 limit, uint256 offset) external view returns (address[] memory response, uint256 count);

    /// Total amount of protocols
    /// @return count total amount of protocols
    function getProtocolsCount() external view returns (uint256 count);

    /// Returns a list of protocols based on the service provider address
    /// @param deployer address of the service provider
    /// @param limit amount of addresses
    /// @param offset index to start from until limit
    /// @return response list of addresses
    /// @return count total amount of protocols
    function getProtocolsForDeployer(
        address deployer,
        uint256 limit,
        uint256 offset
    ) external view returns (address[] memory response, uint256 count);

    /// Total amount of protocols for a certain service provider
    /// @param deployer address of the service provider
    /// @return count total amount of protocols
    function getProtocolsForDeployerCount(address deployer) external view returns (uint256 count);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.28;

/// @title Interface for the base function of each staking template
/// @author 0xdEaF <[email protected]>
interface IStakingBase {
    error Staking__NoStakes();
    error Staking__AmountZero();
    error Staking__AmountOverflow();
    error Staking__AmountReceivedInsufficient(uint256 actualAmount, uint256 minAmount);
    error Staking__ValueNotAllowed();
    error Staking__AddressZero();
    error Staking__InvalidAmount();
    error Staking__InsufficientStake();

    /// Deposit stake event
    /// @param staker address of staker
    /// @param amount deposited amount
    event Deposit(address indexed staker, int256 amount);

    /// Withdraw stake event
    /// @param staker address of staker
    /// @param amount withdrawn amount
    event Withdraw(address indexed staker, int256 amount);

    /// Update stake event
    /// @param staker address of staker
    /// @param amount updated amount
    event Update(address indexed staker, int256 amount);

    /// Claim rewards event
    /// @param staker address of staker
    /// @param amount rewarded amount
    event Claim(address indexed staker, uint256 amount);

    /// Restake rewards event
    /// @param staker address of staker
    /// @param amount restake amount
    event Restaked(address indexed staker, uint256 amount);

    /// Rewards injected event
    /// @param actor address of reward injector
    /// @param amountInjected amount of rewards injected
    /// @param amountGiven amount that actually has been given (can differ from amountInjected)
    /// @param amountStaked staked amount (interesting value for for apr calculation)
    event InjectRewards(address indexed actor, uint256 amountInjected, uint256 amountGiven, uint256 amountStaked);

    /// Service fee event
    /// @param provider address of the service provide
    /// @param paymentAmount fee amount of the service provider (always native currency of desired chain)
    event ServiceFee(address indexed provider, uint256 paymentAmount);

    /// Service fee transfer failed event
    /// @param provider address of the receiver
    /// @param paymentAmount fee amount of the service provider (always native currency of desired chain)
    event ServiceFeeFailed(address indexed provider, uint256 paymentAmount);

    /// @dev struct for storing the stake
    struct Stake {
        /// @dev amount of stake
        uint128 amount;
        /// @dev amount of the pending stake will be stored in case of restaking
        uint256 pending;
        /// @dev scaled dividend
        uint256 dividend;
    }

    /// @dev struct for list response of stake
    struct StakersStake {
        /// @dev address of the staker
        address staker;
        /// @dev amount of stake
        uint128 amount;
        /// @dev amount of the pending stake will be stored in case of restaking
        uint256 pending;
        /// @dev scaled dividend
        uint256 dividend;
    }

    /// Initialize function for the protocol
    /// @param stakingToken token address that will be used for the staking token
    /// @param owner address of the owner of the protocol
    /// @param args encoded parameters that will be used for the specific template
    function initialize(address stakingToken, address owner, bytes calldata args) external;

    /// Enabled or disables a protocol
    /// @param enable  enable/disable flag
    /// @param referrals address referrals that receive an evenly spread share of sent value
    function enable(bool enable, address[] calldata referrals) external payable;

    /// Deposits a stake for a given staker with a given amount
    /// @param staker address of the staker
    /// @param amount amount of staking token that should be staked
    /// @param minAmount min amount of expected staking tokens that will be staked
    /// @param referrals address referrals that receive an evenly spread share of sent value
    function deposit(
        address staker,
        uint256 amount,
        uint256 minAmount,
        address[] calldata referrals
    ) external payable returns (uint256 depositAmount);

    /// Withdraws to a specified receiver
    /// @param receiver address of the receiver of the withdrawing stake
    /// @param amount amount of stake that should be withdrawn
    /// @param referrals address referrals that receive an evenly spread share of sent value
    function withdraw(address receiver, uint256 amount, address[] calldata referrals) external payable returns (uint256 withdrawAmount);

    /// Restakes the rewards of the sender
    /// @param referrals address referrals that receive an evenly spread share of sent value
    function restake(address[] calldata referrals) external payable returns (uint256 restakeAmount);

    /// Claims rewards of the sender and sends it to a specified receiver
    /// @param receiver address of the reward receiver
    /// @param referrals address referrals that receive an evenly spread share of sent value
    function claimRewards(address receiver, address[] calldata referrals) external payable returns (uint256 claimAmount);

    /// Deposit and distribute rewards to stakers
    /// @param amount amount of reward token that should be distributed
    /// @param minAmount min amount of expected rewards tokens that will be distributed
    /// @param referrals address referrals that receive an evenly spread share of sent value
    function injectRewards(
        uint256 amount,
        uint256 minAmount,
        address[] calldata referrals
    ) external payable returns (uint256 injectedAmount);

    /// @dev total amount of staked tokens
    function staked() external view returns (uint128);

    /// Total amount of a given reward token
    /// @param rewardToken address of the reward token
    function rewarded(address rewardToken) external view returns (uint256 amount);

    /// @dev address of the staking token
    function stakingToken() external view returns (address);

    /// @dev address of the reward token
    function rewardToken() external view returns (address);

    /// Pending rewards of a given staker
    /// @param staker address of staker
    function getPendingRewards(address staker) external view returns (uint256 pendingRewards);

    /// Stake information of a given staker
    /// @param staker address of staker
    function getStakeOf(address staker) external view returns (Stake memory stake);

    /// Total given rewards of a given staker
    /// @param staker address of staker
    function getRewardsOf(address staker) external view returns (uint256 rewards);

    /// Paginated list of stakers with the total amount
    /// @param _limit amount of stakers
    /// @param _offset index to start from until limit
    /// @return _stakers staker information
    /// @return _count total amount of stakers available
    function getStakers(uint256 _limit, uint256 _offset) external view returns (StakersStake[] memory _stakers, uint256 _count);

    /// Total amount of stakers
    function getStakersCount() external view returns (uint256 _count);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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0000000000000000000000001fdff1297b25b69046a9964a69327544d3dddc82

-----Decoded View---------------
Arg [0] : _implementation (address): 0x1FDFf1297B25B69046a9964A69327544D3DDdC82

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000001fdff1297b25b69046a9964a69327544d3dddc82