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// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.7.5;
pragma abicoder v2;

import "@openzeppelin/contracts/math/SafeMath.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "../presets/OwnablePausable.sol";
import "../interfaces/IDepositContract.sol";
import "../interfaces/IValidators.sol";
import "../interfaces/ISolos.sol";

/**
 * @title Solos
 *
 * @dev Users can create standalone validators with their own withdrawal key using this contract.
 * The validator can be registered as soon as deposit is added.
 */
contract Solos is ISolos, ReentrancyGuard, OwnablePausable {
    using Address for address payable;
    using SafeMath for uint256;

    // @dev Validator deposit amount.
    uint256 public constant VALIDATOR_DEPOSIT = 32 ether;

    // @dev Maps ID of the solo to its information.
    mapping(bytes32 => Solo) public override solos;

    // @dev Address of the ETH2 Deposit Contract (deployed by Ethereum).
    IDepositContract public override validatorRegistration;

    // @dev Solo validator price per month.
    uint256 public override validatorPrice;

    // @dev Solo validator deposit cancel lock duration.
    uint256 public override cancelLockDuration;

    // @dev Address of the Validators contract.
    IValidators private validators;

    /**
    * @dev Constructor for initializing the Solos contract.
    * @param _admin - address of the contract admin.
    * @param _validatorRegistration - address of the VRC (deployed by Ethereum).
    * @param _validators - address of the Validators contract.
    * @param _validatorPrice - validator price.
    * @param _cancelLockDuration - cancel lock duration in seconds.
    */
    constructor(
        address _admin,
        address _validatorRegistration,
        address _validators,
        uint256 _validatorPrice,
        uint256 _cancelLockDuration
    )
        OwnablePausable(_admin)
    {
        validatorRegistration = IDepositContract(_validatorRegistration);
        validators = IValidators(_validators);

        // set validator price
        validatorPrice = _validatorPrice;
        emit ValidatorPriceUpdated(_validatorPrice);

        // set cancel lock duration
        cancelLockDuration = _cancelLockDuration;
        emit CancelLockDurationUpdated(_cancelLockDuration);
    }

    /**
     * @dev See {ISolos-addDeposit}.
     */
    function addDeposit(bytes32 _withdrawalCredentials) external payable override whenNotPaused {
        require(_withdrawalCredentials != "" && _withdrawalCredentials[0] == 0x00, "Solos: invalid credentials");
        require(msg.value > 0 && msg.value.mod(VALIDATOR_DEPOSIT) == 0, "Solos: invalid deposit amount");

        bytes32 soloId = keccak256(abi.encodePacked(address(this), msg.sender, _withdrawalCredentials));
        Solo storage solo = solos[soloId];

        // update solo data
        solo.amount = solo.amount.add(msg.value);
        if (solo.withdrawalCredentials == "") {
            solo.withdrawalCredentials = _withdrawalCredentials;
        }
        // the deposit can be canceled after lock has expired and it was not yet sent for staking
        // solhint-disable-next-line not-rely-on-time
        solo.releaseTime = block.timestamp.add(cancelLockDuration);

        // emit event
        emit DepositAdded(soloId, msg.sender, msg.value, _withdrawalCredentials);
    }

    /**
     * @dev See {ISolos-cancelDeposit}.
     */
    function cancelDeposit(bytes32 _withdrawalCredentials, uint256 _amount) external override nonReentrant {
        // update balance
        bytes32 soloId = keccak256(abi.encodePacked(address(this), msg.sender, _withdrawalCredentials));
        Solo storage solo = solos[soloId];

        // solhint-disable-next-line not-rely-on-time
        require(block.timestamp >= solo.releaseTime, "Solos: too early cancel");

        uint256 newAmount = solo.amount.sub(_amount, "Solos: insufficient balance");
        require(newAmount.mod(VALIDATOR_DEPOSIT) == 0, "Solos: invalid cancel amount");

        // emit event
        emit DepositCanceled(soloId, msg.sender, _amount, solo.withdrawalCredentials);

        if (newAmount > 0) {
            solo.amount = newAmount;
            // solhint-disable-next-line not-rely-on-time
            solo.releaseTime = block.timestamp.add(cancelLockDuration);
        } else {
            delete solos[soloId];
        }

        // transfer canceled amount to the recipient
        msg.sender.sendValue(_amount);
    }

    /**
     * @dev See {ISolos-setValidatorPrice}.
     */
    function setValidatorPrice(uint256 _validatorPrice) external override onlyAdmin {
        validatorPrice = _validatorPrice;
        emit ValidatorPriceUpdated(_validatorPrice);
    }

    /**
     * @dev See {ISolos-setCancelLockDuration}.
     */
    function setCancelLockDuration(uint256 _cancelLockDuration) external override onlyAdmin {
        cancelLockDuration = _cancelLockDuration;
        emit CancelLockDurationUpdated(_cancelLockDuration);
    }

    /**
     * @dev See {ISolos-registerValidator}.
     */
    function registerValidator(Validator calldata _validator) external override whenNotPaused {
        require(validators.isOperator(msg.sender), "Solos: access denied");

        // update solo balance
        Solo storage solo = solos[_validator.soloId];
        solo.amount = solo.amount.sub(VALIDATOR_DEPOSIT, "Solos: insufficient balance");

        // register validator
        validators.register(keccak256(abi.encodePacked(_validator.publicKey)));
        emit ValidatorRegistered(_validator.soloId, _validator.publicKey, validatorPrice, msg.sender);

        validatorRegistration.deposit{value : VALIDATOR_DEPOSIT}(
            _validator.publicKey,
            abi.encodePacked(solo.withdrawalCredentials),
            _validator.signature,
            _validator.depositDataRoot
        );
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.2 <0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @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://diligence.consensys.net/posts/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/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @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, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * 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.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @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`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        if (success) {
            return returndata;
        } else {
            // 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

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @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 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;

    constructor () internal {
        _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 make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

        _;

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

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.7.5;

import "@openzeppelin/contracts/access/AccessControl.sol";
import "@openzeppelin/contracts/utils/Pausable.sol";
import "../interfaces/IOwnablePausable.sol";

/**
 * @title OwnablePausable
 *
 * @dev Bundles Access Control and Pausable contracts in one.
 *
 */
abstract contract OwnablePausable is IOwnablePausable, Pausable, AccessControl {
    bytes32 public constant PAUSER_ROLE = keccak256("PAUSER_ROLE");

    /**
    * @dev Modifier for checking whether the caller is an admin.
    */
    modifier onlyAdmin() {
        require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), "OwnablePausable: access denied");
        _;
    }

    /**
    * @dev Modifier for checking whether the caller is a pauser.
    */
    modifier onlyPauser() {
        require(hasRole(PAUSER_ROLE, msg.sender), "OwnablePausable: access denied");
        _;
    }

    /**
     * @dev Grants `DEFAULT_ADMIN_ROLE`, `PAUSER_ROLE` to the admin account.
     */
    constructor(address _admin) {
        _setupRole(DEFAULT_ADMIN_ROLE, _admin);
        _setupRole(PAUSER_ROLE, _admin);
    }

    /**
     * @dev See {IOwnablePausable-isAdmin}.
     */
    function isAdmin(address _account) external override view returns (bool) {
        return hasRole(DEFAULT_ADMIN_ROLE, _account);
    }

    /**
     * @dev See {IOwnablePausable-addAdmin}.
     */
    function addAdmin(address _account) external override {
        grantRole(DEFAULT_ADMIN_ROLE, _account);
    }

    /**
     * @dev See {IOwnablePausable-removeAdmin}.
     */
    function removeAdmin(address _account) external override {
        revokeRole(DEFAULT_ADMIN_ROLE, _account);
    }

    /**
     * @dev See {IOwnablePausable-isPauser}.
     */
    function isPauser(address _account) external override view returns (bool) {
        return hasRole(PAUSER_ROLE, _account);
    }

    /**
     * @dev See {IOwnablePausable-addPauser}.
     */
    function addPauser(address _account) external override {
        grantRole(PAUSER_ROLE, _account);
    }

    /**
     * @dev See {IOwnablePausable-removePauser}.
     */
    function removePauser(address _account) external override {
        revokeRole(PAUSER_ROLE, _account);
    }

    /**
     * @dev See {IOwnablePausable-pause}.
     */
    function pause() external override onlyPauser {
        _pause();
    }

    /**
     * @dev See {IOwnablePausable-unpause}.
     */
    function unpause() external override onlyPauser {
        _unpause();
    }
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.7.5;

// This interface is designed to be compatible with the Vyper version.
/// @notice This is the Ethereum 2.0 deposit contract interface.
/// For more information see the Phase 0 specification under https://github.com/ethereum/eth2.0-specs
/// https://github.com/ethereum/eth2.0-specs/blob/dev/solidity_deposit_contract/deposit_contract.sol
interface IDepositContract {
    /// @notice A processed deposit event.
    event DepositEvent(
        bytes pubkey,
        bytes withdrawal_credentials,
        bytes amount,
        bytes signature,
        bytes index
    );

    /// @notice Submit a Phase 0 DepositData object.
    /// @param pubkey A BLS12-381 public key.
    /// @param withdrawal_credentials Commitment to a public key for withdrawals.
    /// @param signature A BLS12-381 signature.
    /// @param deposit_data_root The SHA-256 hash of the SSZ-encoded DepositData object.
    /// Used as a protection against malformed input.
    function deposit(
        bytes calldata pubkey,
        bytes calldata withdrawal_credentials,
        bytes calldata signature,
        bytes32 deposit_data_root
    ) external payable;

    /// @notice Query the current deposit root hash.
    /// @return The deposit root hash.
    function get_deposit_root() external view returns (bytes32);

    /// @notice Query the current deposit count.
    /// @return The deposit count encoded as a little endian 64-bit number.
    function get_deposit_count() external view returns (bytes memory);
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.7.5;

/**
 * @dev Interface of the Validators contract.
 */
interface IValidators {
    /**
    * @dev Constructor for initializing the Validators contract.
    * @param _admin - address of the contract admin.
    * @param _pool - address of the Pool contract.
    * @param _solos - address of the Solos contract.
    */
    function initialize(address _admin, address _pool, address _solos) external;

    /**
    * @dev Function for checking whether an account has an operator role.
    * @param _account - account to check.
    */
    function isOperator(address _account) external view returns (bool);

    /**
    * @dev Function for adding an operator role to the account.
    * Can only be called by an account with an admin role.
    * @param _account - account to assign an operator role to.
    */
    function addOperator(address _account) external;

    /**
    * @dev Function for removing an operator role from the account.
    * Can only be called by an account with an admin role.
    * @param _account - account to remove an operator role from.
    */
    function removeOperator(address _account) external;

    /**
    * @dev Function for checking whether public key was already used.
    * @param _publicKey - hash of public key to check.
    */
    function publicKeys(bytes32 _publicKey) external view returns (bool);

    /**
    * @dev Function for registering validators. Can only be called by collectors.
    * @param _validatorId - ID of the validator.
    */
    function register(bytes32 _validatorId) external;
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.7.5;
pragma abicoder v2;

import "./IDepositContract.sol";

/**
 * @dev Interface of the Solos contract.
 */
interface ISolos {
    /**
    * @dev Structure for storing information about the solo deposits.
    * @param amount - amount deposited.
    * @param withdrawalCredentials - withdrawal credentials of the validators.
    * @param releaseTime - the time when the deposit amount can be canceled.
    */
    struct Solo {
        uint256 amount;
        bytes32 withdrawalCredentials;
        uint256 releaseTime;
    }

    /**
    * @dev Structure for passing information about new Validator.
    * @param publicKey - BLS public key of the validator, generated by the operator.
    * @param signature - BLS signature of the validator, generated by the operator.
    * @param depositDataRoot - hash tree root of the deposit data, generated by the operator.
    * @param soloId - ID of the solo to register validator for.
    */
    struct Validator {
        bytes publicKey;
        bytes signature;
        bytes32 depositDataRoot;
        bytes32 soloId;
    }

    /**
    * @dev Event for tracking added deposits.
    * @param soloId - ID of the solo.
    * @param sender - address of the deposit sender.
    * @param amount - amount added.
    * @param withdrawalCredentials - withdrawal credentials submitted by deposit owner.
    */
    event DepositAdded(
        bytes32 indexed soloId,
        address indexed sender,
        uint256 amount,
        bytes32 withdrawalCredentials
    );

    /**
    * @dev Event for tracking canceled deposits.
    * @param soloId - ID of the solo.
    * @param sender - address of the deposit sender.
    * @param amount - amount canceled.
    * @param withdrawalCredentials - withdrawal credentials submitted by deposit owner.
    */
    event DepositCanceled(
        bytes32 indexed soloId,
        address indexed sender,
        uint256 amount,
        bytes32 withdrawalCredentials
    );

    /**
    * @dev Event for tracking new cancel lock duration time.
    * @param cancelLockDuration - new cancel lock duration for solo deposits.
    */
    event CancelLockDurationUpdated(uint256 cancelLockDuration);

    /**
    * @dev Event for tracking solo validator price updates.
    * @param validatorPrice - new price for the solo validators.
    */
    event ValidatorPriceUpdated(uint256 validatorPrice);

    /**
    * @dev Event for tracking registered validators.
    * @param soloId - ID of the solo where the deposit was accumulated.
    * @param publicKey - validator public key.
    * @param price - validator monthly price.
    * @param operator - address of the validator operator.
    */
    event ValidatorRegistered(bytes32 indexed soloId, bytes publicKey, uint256 price, address operator);

    /**
    * @dev Function for getting solo's details.
    * @param _soloId - ID of the solo to retrieve data for.
    */
    function solos(bytes32 _soloId) external view returns (
        uint256 amount,
        bytes32 withdrawalCredentials,
        uint256 releaseTime
    );

    /**
    * @dev Function for retrieving the validator registration contract address.
    */
    function validatorRegistration() external view returns (IDepositContract);

    /**
    * @dev Function for getting solo validator price per month.
    */
    function validatorPrice() external view returns (uint256);

    /**
    * @dev Function for updating solo validator price.
    * @param _validatorPrice - new validator price.
    */
    function setValidatorPrice(uint256 _validatorPrice) external;

    /**
    * @dev Function for getting cancel lock duration in seconds.
    */
    function cancelLockDuration() external view returns (uint256);

    /**
    * @dev Function for updating cancel lock duration in seconds.
    * @param newCancelLockDuration - new cancel lock duration in seconds.
    */
    function setCancelLockDuration(uint256 newCancelLockDuration) external;

    /**
    * @dev Function for adding solo deposits.
    * The deposit amount must be divisible by the validator deposit amount.
    * @param _withdrawalCredentials - withdrawal credentials for performing validator withdrawal.
    */
    function addDeposit(bytes32 _withdrawalCredentials) external payable;

    /**
    * @dev Function for canceling solo deposits.
    * The deposit amount can only be canceled before it will be registered as a validator.
    * @param _withdrawalCredentials - withdrawal credentials of solo validators.
    * @param _amount - amount to cancel.
    */
    function cancelDeposit(bytes32 _withdrawalCredentials, uint256 _amount) external;

    /**
    * @dev Function for registering new solo validator.
    * @param _validator - validator to register.
    */
    function registerValidator(Validator calldata _validator) external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../utils/EnumerableSet.sol";
import "../utils/Address.sol";
import "../GSN/Context.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms.
 *
 * 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:
 *
 * ```
 * 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}:
 *
 * ```
 * 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.
 */
abstract contract AccessControl is Context {
    using EnumerableSet for EnumerableSet.AddressSet;
    using Address for address;

    struct RoleData {
        EnumerableSet.AddressSet members;
        bytes32 adminRole;
    }

    mapping (bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @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.
     *
     * _Available since v3.1._
     */
    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, an admin role
     * bearer except when using {_setupRole}.
     */
    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) public view returns (bool) {
        return _roles[role].members.contains(account);
    }

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) public view returns (uint256) {
        return _roles[role].members.length();
    }

    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) public view returns (address) {
        return _roles[role].members.at(index);
    }

    /**
     * @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 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.
     */
    function grantRole(bytes32 role, address account) public virtual {
        require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to grant");

        _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.
     */
    function revokeRole(bytes32 role, address account) public virtual {
        require(hasRole(_roles[role].adminRole, _msgSender()), "AccessControl: sender must be an admin to revoke");

        _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 granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

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

    function _grantRole(bytes32 role, address account) private {
        if (_roles[role].members.add(account)) {
            emit RoleGranted(role, account, _msgSender());
        }
    }

    function _revokeRole(bytes32 role, address account) private {
        if (_roles[role].members.remove(account)) {
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

import "../GSN/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 {
    /**
     * @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);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor () internal {
        _paused = false;
    }

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

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

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(_paused, "Pausable: not paused");
        _;
    }

    /**
     * @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());
    }
}

// SPDX-License-Identifier: AGPL-3.0-only

pragma solidity 0.7.5;

/**
 * @dev Interface of the OwnablePausableUpgradeable and OwnablePausable contracts.
 */
interface IOwnablePausable {
    /**
    * @dev Function for checking whether an account has an admin role.
    * @param _account - account to check.
    */
    function isAdmin(address _account) external view returns (bool);

    /**
    * @dev Function for assigning an admin role to the account.
    * Can only be called by an account with an admin role.
    * @param _account - account to assign an admin role to.
    */
    function addAdmin(address _account) external;

    /**
    * @dev Function for removing an admin role from the account.
    * Can only be called by an account with an admin role.
    * @param _account - account to remove an admin role from.
    */
    function removeAdmin(address _account) external;

    /**
    * @dev Function for checking whether an account has a pauser role.
    * @param _account - account to check.
    */
    function isPauser(address _account) external view returns (bool);

    /**
    * @dev Function for adding a pauser role to the account.
    * Can only be called by an account with an admin role.
    * @param _account - account to assign a pauser role to.
    */
    function addPauser(address _account) external;

    /**
    * @dev Function for removing a pauser role from the account.
    * Can only be called by an account with an admin role.
    * @param _account - account to remove a pauser role from.
    */
    function removePauser(address _account) external;

    /**
    * @dev Function for pausing the contract.
    */
    function pause() external;

    /**
    * @dev Function for unpausing the contract.
    */
    function unpause() external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @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.
 *
 * ```
 * 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.
 */
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 of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping (bytes32 => uint256) _indexes;
    }

    /**
     * @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._indexes[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 read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 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 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
            // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

            bytes32 lastvalue = set._values[lastIndex];

            // Move the last value to the index where the value to delete is
            set._values[toDeleteIndex] = lastvalue;
            // Update the index for the moved value
            set._indexes[lastvalue] = toDeleteIndex + 1; // All indexes are 1-based

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

            // Delete the index for the deleted slot
            delete set._indexes[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._indexes[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) {
        require(set._values.length > index, "EnumerableSet: index out of bounds");
        return set._values[index];
    }

    // 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);
    }

    // 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(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(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(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(uint256(_at(set._inner, index)));
    }


    // 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 on 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));
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/*
 * @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 GSN 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 payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"isAdmin","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"isPauser","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"bytes","name":"publicKey","type":"bytes"},{"internalType":"bytes","name":"signature","type":"bytes"},{"internalType":"bytes32","name":"depositDataRoot","type":"bytes32"},{"internalType":"bytes32","name":"soloId","type":"bytes32"}],"internalType":"struct ISolos.Validator","name":"_validator","type":"tuple"}],"name":"registerValidator","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"removeAdmin","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"removePauser","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_cancelLockDuration","type":"uint256"}],"name":"setCancelLockDuration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_validatorPrice","type":"uint256"}],"name":"setValidatorPrice","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"solos","outputs":[{"internalType":"uint256","name":"amount","type":"uint256"},{"internalType":"bytes32","name":"withdrawalCredentials","type":"bytes32"},{"internalType":"uint256","name":"releaseTime","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"validatorPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"validatorRegistration","outputs":[{"internalType":"contract IDepositContract","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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000000000000000000000000144a98cb1cdbb23610501fe6108858d9b7d2493400000000000000000000000000000000219ab540356cbb839cbe05303d7705fa000000000000000000000000aac73d4a26ae6906aa115118b7840b1f19fcd3a50000000000000000000000000000000000000000000000008ac7230489e800000000000000000000000000000000000000000000000000000000000000015180

-----Decoded View---------------
Arg [0] : _admin (address): 0x144a98cb1CdBb23610501fE6108858D9B7D24934
Arg [1] : _validatorRegistration (address): 0x00000000219ab540356cBB839Cbe05303d7705Fa
Arg [2] : _validators (address): 0xaAc73D4A26Ae6906aa115118b7840b1F19fcd3A5
Arg [3] : _validatorPrice (uint256): 10000000000000000000
Arg [4] : _cancelLockDuration (uint256): 86400

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 000000000000000000000000144a98cb1cdbb23610501fe6108858d9b7d24934
Arg [1] : 00000000000000000000000000000000219ab540356cbb839cbe05303d7705fa
Arg [2] : 000000000000000000000000aac73d4a26ae6906aa115118b7840b1f19fcd3a5
Arg [3] : 0000000000000000000000000000000000000000000000008ac7230489e80000
Arg [4] : 0000000000000000000000000000000000000000000000000000000000015180