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Contract Name:
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Contract Source Code:

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^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() {
        _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() {
        // 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: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

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

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

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

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

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

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @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
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 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");

        (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");

        (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");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal 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
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

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

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

pragma solidity ^0.8.18;

import "../interfaces/ISAFURAMaster.sol";
import "../interfaces/IMasterAwareV2.sol";
import "../interfaces/IMemberRoles.sol";

abstract contract MasterAwareV2 is IMasterAwareV2 {

  ISAFURAMaster public master;

  mapping(uint => address payable) public internalContracts;

  modifier onlyMember {
    require(
      IMemberRoles(internalContracts[uint(ID.MR)]).checkRole(
        msg.sender,
        uint(IMemberRoles.Role.Member)
      ),
      "Caller is not a member"
    );
    _;
  }

  modifier onlyAdvisoryBoard {
    require(
      IMemberRoles(internalContracts[uint(ID.MR)]).checkRole(
        msg.sender,
        uint(IMemberRoles.Role.AdvisoryBoard)
      ),
      "Caller is not an advisory board member"
    );
    _;
  }

  modifier onlyInternal {
    require(master.isInternal(msg.sender), "Caller is not an internal contract");
    _;
  }

  modifier onlyMaster {
    if (address(master) != address(0)) {
      require(address(master) == msg.sender, "Not master");
    }
    _;
  }

  modifier onlyGovernance {
    require(
      master.checkIsAuthToGoverned(msg.sender),
      "Caller is not authorized to govern"
    );
    _;
  }

  modifier onlyEmergencyAdmin {
    require(
      msg.sender == master.emergencyAdmin(),
      "Caller is not emergency admin"
    );
    _;
  }

  modifier whenPaused {
    require(master.isPause(), "System is not paused");
    _;
  }

  modifier whenNotPaused {
    require(!master.isPause(), "System is paused");
    _;
  }

  function getInternalContractAddress(ID id) internal view returns (address payable) {
    return internalContracts[uint(id)];
  }

  function changeMasterAddress(address masterAddress) public onlyMaster {
    master = ISAFURAMaster(masterAddress);
  }

}

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

pragma solidity ^0.8.18;

abstract contract Multicall {

  error RevertedWithoutReason(uint index);

  // WARNING: Do not set this function as payable
  function multicall(bytes[] calldata data) external returns (bytes[] memory results) {

    uint callCount = data.length;
    results = new bytes[](callCount);

    for (uint i = 0; i < callCount; i++) {
      (bool ok, bytes memory result) = address(this).delegatecall(data[i]);

      if (!ok) {

        uint length = result.length;

        // 0 length returned from empty revert() / require(false)
        if (length == 0) {
          revert RevertedWithoutReason(i);
        }

        assembly {
          revert(add(result, 0x20), length)
        }
      }

      results[i] = result;
    }
  }
}

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

pragma solidity >=0.5.0;

import "./IStakingPoolFactory.sol";

/**
 * @dev IStakingPoolFactory is missing the changeOperator() and operator() functions.
 * @dev Any change to the original interface will affect staking pool addresses
 * @dev This interface is created to add the missing functions so it can be used in other contracts.
 */
interface ICompleteStakingPoolFactory is IStakingPoolFactory {

  function operator() external view returns (address);

  function changeOperator(address newOperator) external;
}

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

pragma solidity >=0.5.0;

import "./ICoverNFT.sol";
import "./IStakingNFT.sol";
import "./IStakingPool.sol";
import "./ICompleteStakingPoolFactory.sol";

/* io structs */

enum ClaimMethod {
  IndividualClaims,
  YieldTokenIncidents
}

struct PoolAllocationRequest {
  uint40 poolId;
  bool skip;
  uint coverAmountInAsset;
}

struct BuyCoverParams {
  uint coverId;
  address owner;
  uint24 productId;
  uint8 coverAsset;
  uint96 amount;
  uint32 period;
  uint maxPremiumInAsset;
  uint8 paymentAsset;
  uint16 commissionRatio;
  address commissionDestination;
  string ipfsData;
}

/* storage structs */

struct PoolAllocation {
  uint40 poolId;
  uint96 coverAmountInNXM;
  uint96 premiumInNXM;
  uint24 allocationId;
}

struct CoverData {
  uint24 productId;
  uint8 coverAsset;
  uint96 amountPaidOut;
}

struct CoverSegment {
  uint96 amount;
  uint32 start;
  uint32 period; // seconds
  uint32 gracePeriod; // seconds
  uint24 globalRewardsRatio;
  uint24 globalCapacityRatio;
}

interface ICover {

  /* ========== DATA STRUCTURES ========== */

  /* internal structs */

  struct RequestAllocationVariables {
    uint previousPoolAllocationsLength;
    uint previousPremiumInNXM;
    uint refund;
    uint coverAmountInNXM;
  }

  /* storage structs */

  struct ActiveCover {
    // Global active cover amount per asset.
    uint192 totalActiveCoverInAsset;
    // The last time activeCoverExpirationBuckets was updated
    uint64 lastBucketUpdateId;
  }

  /* ========== VIEWS ========== */

  function coverData(uint coverId) external view returns (CoverData memory);

  function coverDataCount() external view returns (uint);

  function coverSegmentsCount(uint coverId) external view returns (uint);

  function coverSegments(uint coverId) external view returns (CoverSegment[] memory);

  function coverSegmentWithRemainingAmount(
    uint coverId,
    uint segmentId
  ) external view returns (CoverSegment memory);

  function recalculateActiveCoverInAsset(uint coverAsset) external;

  function totalActiveCoverInAsset(uint coverAsset) external view returns (uint);

  function getGlobalCapacityRatio() external view returns (uint);

  function getGlobalRewardsRatio() external view returns (uint);

  function getGlobalMinPriceRatio() external pure returns (uint);

  function getGlobalCapacityAndPriceRatios() external view returns (
    uint _globalCapacityRatio,
    uint _globalMinPriceRatio
  );

  function GLOBAL_MIN_PRICE_RATIO() external view returns (uint);

  /* === MUTATIVE FUNCTIONS ==== */

  function buyCover(
    BuyCoverParams calldata params,
    PoolAllocationRequest[] calldata coverChunkRequests
  ) external payable returns (uint coverId);

  function burnStake(
    uint coverId,
    uint segmentId,
    uint amount
  ) external returns (address coverOwner);

  function changeStakingPoolFactoryOperator() external;

  function coverNFT() external returns (ICoverNFT);

  function stakingNFT() external returns (IStakingNFT);

  function stakingPoolFactory() external returns (ICompleteStakingPoolFactory);

  /* ========== EVENTS ========== */

  event CoverEdited(uint indexed coverId, uint indexed productId, uint indexed segmentId, address buyer, string ipfsMetadata);

  // Auth
  error OnlyOwnerOrApproved();

  // Cover details
  error CoverPeriodTooShort();
  error CoverPeriodTooLong();
  error CoverOutsideOfTheGracePeriod();
  error CoverAmountIsZero();

  // Products
  error ProductNotFound();
  error ProductDeprecated();
  error UnexpectedProductId();

  // Cover and payment assets
  error CoverAssetNotSupported();
  error InvalidPaymentAsset();
  error UnexpectedCoverAsset();
  error UnexpectedEthSent();
  error EditNotSupported();

  // Price & Commission
  error PriceExceedsMaxPremiumInAsset();
  error CommissionRateTooHigh();

  // ETH transfers
  error InsufficientEthSent();
  error SendingEthToPoolFailed();
  error SendingEthToCommissionDestinationFailed();
  error ReturningEthRemainderToSenderFailed();

  // Misc
  error ExpiredCoversCannotBeEdited();
  error CoverNotYetExpired(uint coverId);
  error InsufficientCoverAmountAllocated();
  error UnexpectedPoolId();
}

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

pragma solidity >=0.5.0;

import "@openzeppelin/contracts-v4/token/ERC721/IERC721.sol";

interface ICoverNFT is IERC721 {

  function isApprovedOrOwner(address spender, uint tokenId) external returns (bool);

  function mint(address to) external returns (uint tokenId);

  function changeOperator(address newOperator) external;

  function changeNFTDescriptor(address newNFTDescriptor) external;

  function totalSupply() external view returns (uint);

  function name() external view returns (string memory);

  error NotOperator();
  error NotMinted();
  error WrongFrom();
  error InvalidRecipient();
  error InvalidNewOperatorAddress();
  error InvalidNewNFTDescriptorAddress();
  error NotAuthorized();
  error UnsafeRecipient();
  error AlreadyMinted();

}

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

pragma solidity >=0.5.0;

import "./ICover.sol";

/* io structs */

struct ProductInitializationParams {
  uint productId;
  uint8 weight;
  uint96 initialPrice;
  uint96 targetPrice;
}

/* storage structs */

struct Product {
  uint16 productType;
  address yieldTokenAddress;
  // cover assets bitmap. each bit represents whether the asset with
  // the index of that bit is enabled as a cover asset for this product
  uint32 coverAssets;
  uint16 initialPriceRatio;
  uint16 capacityReductionRatio;
  bool isDeprecated;
  bool useFixedPrice;
}

struct ProductType {
  uint8 claimMethod;
  uint32 gracePeriod;
}

interface ICoverProducts {

  /* storage structs */

  struct Metadata {
    string ipfsHash;
    uint timestamp;
  }

  /* io structs */

  struct ProductParam {
    string productName;
    uint productId;
    string ipfsMetadata;
    Product product;
    uint[] allowedPools;
  }

  struct ProductTypeParam {
    string productTypeName;
    uint productTypeId;
    string ipfsMetadata;
    ProductType productType;
  }

  /* ========== VIEWS ========== */

  function getProductType(uint productTypeId) external view returns (ProductType memory);

  function getProductTypeName(uint productTypeId) external view returns (string memory);

  function getProductTypeCount() external view returns (uint);

  function getProductTypes() external view returns (ProductType[] memory);

  function getProduct(uint productId) external view returns (Product memory);

  function getProductName(uint productTypeId) external view returns (string memory);

  function getProductCount() external view returns (uint);

  function getProducts() external view returns (Product[] memory);

  // add grace period function?
  function getProductWithType(uint productId) external view returns (Product memory, ProductType memory);

  function getLatestProductMetadata(uint productId) external view returns (Metadata memory);

  function getLatestProductTypeMetadata(uint productTypeId) external view returns (Metadata memory);

  function getProductMetadata(uint productId) external view returns (Metadata[] memory);

  function getProductTypeMetadata(uint productTypeId) external view returns (Metadata[] memory);

  function getAllowedPools(uint productId) external view returns (uint[] memory _allowedPools);

  function getAllowedPoolsCount(uint productId) external view returns (uint);

  function isPoolAllowed(uint productId, uint poolId) external view returns (bool);

  function requirePoolIsAllowed(uint[] calldata productIds, uint poolId) external view;

  function getCapacityReductionRatios(uint[] calldata productIds) external view returns (uint[] memory);

  function getInitialPrices(uint[] calldata productIds) external view returns (uint[] memory);

  function prepareStakingProductsParams(
    ProductInitializationParams[] calldata params
  ) external returns (
    ProductInitializationParams[] memory validatedParams
  );

  /* === MUTATIVE FUNCTIONS ==== */

  function setProductTypes(ProductTypeParam[] calldata productTypes) external;

  function setProducts(ProductParam[] calldata params) external;

  /* ========== EVENTS ========== */

  event ProductSet(uint id);
  event ProductTypeSet(uint id);

  // Products and product types
  error ProductNotFound();
  error ProductTypeNotFound();
  error ProductDeprecated();
  error PoolNotAllowedForThisProduct(uint productId);
  error StakingPoolDoesNotExist();
  error MismatchedArrayLengths();
  error MetadataRequired();

  // Misc
  error UnsupportedCoverAssets();
  error InitialPriceRatioBelowGlobalMinPriceRatio();
  error InitialPriceRatioAbove100Percent();
  error CapacityReductionRatioAbove100Percent();

}

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

pragma solidity >=0.5.0;

import "./ICoverProducts.sol";

interface ILegacyCover {

  function stakingPoolFactory() external view returns (address);

  function getProducts() external view returns (Product[] memory);

  function productTypesCount() external view returns (uint);

  function productNames(uint productId) external view returns (string memory);

  function allowedPools(uint productId, uint index) external view returns (uint);

  function productTypes(uint id) external view returns (ProductType memory);

  function productTypeNames(uint id) external view returns (string memory);

}

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

pragma solidity >=0.5.0;

interface IMasterAwareV2 {

  // TODO: if you update this enum, update lib/constants.js as well
  enum ID {
    TC, // TokenController.sol
    P1, // Pool.sol
    MR, // MemberRoles.sol
    MC, // MCR.sol
    CO, // Cover.sol
    SP, // StakingProducts.sol
    PS, // LegacyPooledStaking.sol
    GV, // Governance.sol
    GW, // LegacyGateway.sol - removed
    CL, // CoverMigrator.sol - removed
    AS, // Assessment.sol
    CI, // IndividualClaims.sol - Claims for Individuals
    CG, // YieldTokenIncidents.sol - Claims for Groups
    RA, // Ramm.sol
    ST,  // SafeTracker.sol
    CP  // CoverProducts.sol
  }

  function changeMasterAddress(address masterAddress) external;

  function changeDependentContractAddress() external;

  function internalContracts(uint) external view returns (address payable);
}

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

pragma solidity >=0.5.0;

interface IMemberRoles {

  enum Role {Unassigned, AdvisoryBoard, Member, Owner, Auditor}

  function join(address _userAddress, uint nonce, bytes calldata signature) external payable;

  function switchMembership(address _newAddress) external;

  function switchMembershipAndAssets(
    address newAddress,
    uint[] calldata coverIds,
    uint[] calldata stakingTokenIds
  ) external;

  function switchMembershipOf(address member, address _newAddress) external;

  function totalRoles() external view returns (uint256);

  function changeAuthorized(uint _roleId, address _newAuthorized) external;

  function setKycAuthAddress(address _add) external;

  function members(uint _memberRoleId) external view returns (uint, address[] memory memberArray);

  function numberOfMembers(uint _memberRoleId) external view returns (uint);

  function authorized(uint _memberRoleId) external view returns (address);

  function roles(address _memberAddress) external view returns (uint[] memory);

  function checkRole(address _memberAddress, uint _roleId) external view returns (bool);

  function getMemberLengthForAllRoles() external view returns (uint[] memory totalMembers);

  function memberAtIndex(uint _memberRoleId, uint index) external view returns (address, bool);

  function membersLength(uint _memberRoleId) external view returns (uint);

  event MemberRole(uint256 indexed roleId, bytes32 roleName, string roleDescription);

  event MemberJoined(address indexed newMember, uint indexed nonce);

  event switchedMembership(address indexed previousMember, address indexed newMember, uint timeStamp);
  
  event MembershipWithdrawn(address indexed member, uint timestamp);
}

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

pragma solidity >=0.5.0;

import "./IPriceFeedOracle.sol";

struct SwapDetails {
  uint104 minAmount;
  uint104 maxAmount;
  uint32 lastSwapTime;
  // 2 decimals of precision. 0.01% -> 0.0001 -> 1e14
  uint16 maxSlippageRatio;
}

struct Asset {
  address assetAddress;
  bool isCoverAsset;
  bool isAbandoned;
}

interface IPool {

  function swapOperator() external view returns (address);

  function getAsset(uint assetId) external view returns (Asset memory);

  function getAssets() external view returns (Asset[] memory);

  function transferAssetToSwapOperator(address asset, uint amount) external;

  function setSwapDetailsLastSwapTime(address asset, uint32 lastSwapTime) external;

  function getAssetSwapDetails(address assetAddress) external view returns (SwapDetails memory);

  function sendPayout(uint assetIndex, address payable payoutAddress, uint amount, uint ethDepositAmount) external;

  function sendEth(address payoutAddress, uint amount) external;

  function upgradeCapitalPool(address payable newPoolAddress) external;

  function priceFeedOracle() external view returns (IPriceFeedOracle);

  function getPoolValueInEth() external view returns (uint);

  function calculateMCRRatio(uint totalAssetValue, uint mcrEth) external pure returns (uint);

  function getInternalTokenPriceInAsset(uint assetId) external view returns (uint tokenPrice);

  function getInternalTokenPriceInAssetAndUpdateTwap(uint assetId) external returns (uint tokenPrice);

  function getTokenPrice() external view returns (uint tokenPrice);

  function getMCRRatio() external view returns (uint);

  function setSwapValue(uint value) external;
}

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

pragma solidity >=0.5.0;

interface Aggregator {
  function decimals() external view returns (uint8);
  function latestAnswer() external view returns (int);
}

interface IPriceFeedOracle {

  struct OracleAsset {
    Aggregator aggregator;
    uint8 decimals;
  }

  function ETH() external view returns (address);
  function assets(address) external view returns (Aggregator, uint8);

  function getAssetToEthRate(address asset) external view returns (uint);
  function getAssetForEth(address asset, uint ethIn) external view returns (uint);
  function getEthForAsset(address asset, uint amount) external view returns (uint);

}

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

pragma solidity >=0.5.0;

interface ISAFURAMaster {

  function tokenAddress() external view returns (address);

  function owner() external view returns (address);

  function emergencyAdmin() external view returns (address);

  function masterInitialized() external view returns (bool);

  function isInternal(address _add) external view returns (bool);

  function isPause() external view returns (bool check);

  function isMember(address _add) external view returns (bool);

  function checkIsAuthToGoverned(address _add) external view returns (bool);

  function getLatestAddress(bytes2 _contractName) external view returns (address payable contractAddress);

  function contractAddresses(bytes2 code) external view returns (address payable);

  function upgradeMultipleContracts(
    bytes2[] calldata _contractCodes,
    address payable[] calldata newAddresses
  ) external;

  function removeContracts(bytes2[] calldata contractCodesToRemove) external;

  function addNewInternalContracts(
    bytes2[] calldata _contractCodes,
    address payable[] calldata newAddresses,
    uint[] calldata _types
  ) external;

  function updateOwnerParameters(bytes8 code, address payable val) external;
}

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

pragma solidity >=0.5.0;

import "@openzeppelin/contracts-v4/token/ERC721/IERC721.sol";

interface IStakingNFT is IERC721 {

  function isApprovedOrOwner(address spender, uint tokenId) external returns (bool);

  function mint(uint poolId, address to) external returns (uint tokenId);

  function changeOperator(address newOperator) external;

  function changeNFTDescriptor(address newNFTDescriptor) external;

  function totalSupply() external returns (uint);

  function tokenInfo(uint tokenId) external view returns (uint poolId, address owner);

  function stakingPoolOf(uint tokenId) external view returns (uint poolId);

  function stakingPoolFactory() external view returns (address);

  function name() external view returns (string memory);

  error NotOperator();
  error NotMinted();
  error WrongFrom();
  error InvalidRecipient();
  error InvalidNewOperatorAddress();
  error InvalidNewNFTDescriptorAddress();
  error NotAuthorized();
  error UnsafeRecipient();
  error AlreadyMinted();
  error NotStakingPool();

}

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

pragma solidity >=0.5.0;

/* structs for io */

struct AllocationRequest {
  uint productId;
  uint coverId;
  uint allocationId;
  uint period;
  uint gracePeriod;
  bool useFixedPrice;
  uint previousStart;
  uint previousExpiration;
  uint previousRewardsRatio;
  uint globalCapacityRatio;
  uint capacityReductionRatio;
  uint rewardRatio;
  uint globalMinPrice;
}

struct BurnStakeParams {
  uint allocationId;
  uint productId;
  uint start;
  uint period;
  uint deallocationAmount;
}

interface IStakingPool {

  /* structs for storage */

  // stakers are grouped in tranches based on the timelock expiration
  // tranche index is calculated based on the expiration date
  // the initial proposal is to have 4 tranches per year (1 tranche per quarter)
  struct Tranche {
    uint128 stakeShares;
    uint128 rewardsShares;
  }

  struct ExpiredTranche {
    uint96 accNxmPerRewardShareAtExpiry;
    uint96 stakeAmountAtExpiry; // nxm total supply is 6.7e24 and uint96.max is 7.9e28
    uint128 stakeSharesSupplyAtExpiry;
  }

  struct Deposit {
    uint96 lastAccNxmPerRewardShare;
    uint96 pendingRewards;
    uint128 stakeShares;
    uint128 rewardsShares;
  }

  function initialize(
    bool isPrivatePool,
    uint initialPoolFee,
    uint maxPoolFee,
    uint _poolId,
    string memory ipfsDescriptionHash
  ) external;

  function processExpirations(bool updateUntilCurrentTimestamp) external;

  function requestAllocation(
    uint amount,
    uint previousPremium,
    AllocationRequest calldata request
  ) external returns (uint premium, uint allocationId);

  function burnStake(uint amount, BurnStakeParams calldata params) external;

  function depositTo(
    uint amount,
    uint trancheId,
    uint requestTokenId,
    address destination
  ) external returns (uint tokenId);

  function withdraw(
    uint tokenId,
    bool withdrawStake,
    bool withdrawRewards,
    uint[] memory trancheIds
  ) external returns (uint withdrawnStake, uint withdrawnRewards);

  function isPrivatePool() external view returns (bool);

  function isHalted() external view returns (bool);

  function manager() external view returns (address);

  function getPoolId() external view returns (uint);

  function getPoolFee() external view returns (uint);

  function getMaxPoolFee() external view returns (uint);

  function getActiveStake() external view returns (uint);

  function getStakeSharesSupply() external view returns (uint);

  function getRewardsSharesSupply() external view returns (uint);

  function getRewardPerSecond() external view returns (uint);

  function getAccNxmPerRewardsShare() external view returns (uint);

  function getLastAccNxmUpdate() external view returns (uint);

  function getFirstActiveTrancheId() external view returns (uint);

  function getFirstActiveBucketId() external view returns (uint);

  function getNextAllocationId() external view returns (uint);

  function getDeposit(uint tokenId, uint trancheId) external view returns (
    uint lastAccNxmPerRewardShare,
    uint pendingRewards,
    uint stakeShares,
    uint rewardsShares
  );

  function getTranche(uint trancheId) external view returns (
    uint stakeShares,
    uint rewardsShares
  );

  function getExpiredTranche(uint trancheId) external view returns (
    uint accNxmPerRewardShareAtExpiry,
    uint stakeAmountAtExpiry,
    uint stakeShareSupplyAtExpiry
  );

  function setPoolFee(uint newFee) external;

  function setPoolPrivacy(bool isPrivatePool) external;

  function getActiveAllocations(
    uint productId
  ) external view returns (uint[] memory trancheAllocations);

  function getTrancheCapacities(
    uint productId,
    uint firstTrancheId,
    uint trancheCount,
    uint capacityRatio,
    uint reductionRatio
  ) external view returns (uint[] memory trancheCapacities);

  /* ========== EVENTS ========== */

  event StakeDeposited(address indexed user, uint256 amount, uint256 trancheId, uint256 tokenId);

  event DepositExtended(address indexed user, uint256 tokenId, uint256 initialTrancheId, uint256 newTrancheId, uint256 topUpAmount);

  event PoolPrivacyChanged(address indexed manager, bool isPrivate);

  event PoolFeeChanged(address indexed manager, uint newFee);

  event PoolDescriptionSet(string ipfsDescriptionHash);

  event Withdraw(address indexed user, uint indexed tokenId, uint tranche, uint amountStakeWithdrawn, uint amountRewardsWithdrawn);

  event StakeBurned(uint amount);

  event Deallocated(uint productId);

  event BucketExpired(uint bucketId);

  event TrancheExpired(uint trancheId);

  // Auth
  error OnlyCoverContract();
  error OnlyStakingProductsContract();
  error OnlyManager();
  error PrivatePool();
  error SystemPaused();
  error PoolHalted();

  // Fees
  error PoolFeeExceedsMax();
  error MaxPoolFeeAbove100();

  // Voting
  error NxmIsLockedForGovernanceVote();
  error ManagerNxmIsLockedForGovernanceVote();

  // Deposit
  error InsufficientDepositAmount();
  error RewardRatioTooHigh();

  // Staking NFTs
  error InvalidTokenId();
  error NotTokenOwnerOrApproved();
  error InvalidStakingPoolForToken();

  // Tranche & capacity
  error NewTrancheEndsBeforeInitialTranche();
  error RequestedTrancheIsNotYetActive();
  error RequestedTrancheIsExpired();
  error InsufficientCapacity();

  // Allocation
  error AlreadyDeallocated(uint allocationId);
}

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

pragma solidity >=0.5.0;

interface IStakingPoolFactory {

  function stakingPoolCount() external view returns (uint);

  function beacon() external view returns (address);

  function create(address beacon) external returns (uint poolId, address stakingPoolAddress);

  event StakingPoolCreated(uint indexed poolId, address indexed stakingPoolAddress);
}

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

pragma solidity >=0.5.0;

import "./ICoverProducts.sol";
import "./IStakingPool.sol";

interface IStakingProducts {

  struct StakedProductParam {
    uint productId;
    bool recalculateEffectiveWeight;
    bool setTargetWeight;
    uint8 targetWeight;
    bool setTargetPrice;
    uint96 targetPrice;
  }

  struct Weights {
    uint32 totalEffectiveWeight;
    uint32 totalTargetWeight;
  }

  struct StakedProduct {
    uint16 lastEffectiveWeight;
    uint8 targetWeight;
    uint96 targetPrice;
    uint96 bumpedPrice;
    uint32 bumpedPriceUpdateTime;
  }

  /* ============= PRODUCT FUNCTIONS ============= */

  function setProducts(uint poolId, StakedProductParam[] memory params) external;

  function getProductTargetWeight(uint poolId, uint productId) external view returns (uint);

  function getTotalTargetWeight(uint poolId) external view returns (uint);

  function getTotalEffectiveWeight(uint poolId) external view returns (uint);

  function getProduct(uint poolId, uint productId) external view returns (
    uint lastEffectiveWeight,
    uint targetWeight,
    uint targetPrice,
    uint bumpedPrice,
    uint bumpedPriceUpdateTime
  );

  /* ============= PRICING FUNCTIONS ============= */

  function getPremium(
    uint poolId,
    uint productId,
    uint period,
    uint coverAmount,
    uint initialCapacityUsed,
    uint totalCapacity,
    uint globalMinPrice,
    bool useFixedPrice,
    uint nxmPerAllocationUnit,
    uint allocationUnitsPerNxm
  ) external returns (uint premium);

  function calculateFixedPricePremium(
    uint coverAmount,
    uint period,
    uint fixedPrice,
    uint nxmPerAllocationUnit,
    uint targetPriceDenominator
  ) external pure returns (uint);


  function calculatePremium(
    StakedProduct memory product,
    uint period,
    uint coverAmount,
    uint initialCapacityUsed,
    uint totalCapacity,
    uint targetPrice,
    uint currentBlockTimestamp,
    uint nxmPerAllocationUnit,
    uint allocationUnitsPerNxm,
    uint targetPriceDenominator
  ) external pure returns (uint premium, StakedProduct memory);

  function calculatePremiumPerYear(
    uint basePrice,
    uint coverAmount,
    uint initialCapacityUsed,
    uint totalCapacity,
    uint nxmPerAllocationUnit,
    uint allocationUnitsPerNxm,
    uint targetPriceDenominator
  ) external pure returns (uint);

  // Calculates the premium for a given cover amount starting with the surge point
  function calculateSurgePremium(
    uint amountOnSurge,
    uint totalCapacity,
    uint allocationUnitsPerNxm
  ) external pure returns (uint);

  /* ========== STAKING POOL CREATION ========== */

  function stakingPool(uint poolId) external view returns (IStakingPool);

  function getStakingPoolCount() external view returns (uint);

  function createStakingPool(
    bool isPrivatePool,
    uint initialPoolFee,
    uint maxPoolFee,
    ProductInitializationParams[] calldata productInitParams,
    string calldata ipfsDescriptionHash
  ) external returns (uint poolId, address stakingPoolAddress);

  function changeStakingPoolFactoryOperator(address newOperator) external;

  /* ============= EVENTS ============= */

  event ProductUpdated(uint productId, uint8 targetWeight, uint96 targetPrice);

  /* ============= ERRORS ============= */

  // Auth
  error OnlyStakingPool();
  error OnlyCoverContract();
  error OnlyManager();

  // Products & weights
  error MustSetPriceForNewProducts();
  error MustSetWeightForNewProducts();
  error TargetPriceTooHigh();
  error TargetPriceBelowMin();
  error TargetWeightTooHigh();
  error MustRecalculateEffectiveWeight();
  error TotalTargetWeightExceeded();
  error TotalEffectiveWeightExceeded();

  // Staking Pool creation
  error ProductDoesntExistOrIsDeprecated();
  error InvalidProductType();
  error TargetPriceBelowGlobalMinPriceRatio();

}

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

pragma solidity ^0.8.18;

import "@openzeppelin/contracts-v4/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts-v4/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts-v4/token/ERC20/utils/SafeERC20.sol";

import "../../abstract/MasterAwareV2.sol";
import "../../abstract/Multicall.sol";
import "../../interfaces/ICover.sol";
import "../../interfaces/ICoverProducts.sol";
import "../../interfaces/ILegacyCover.sol";
import "../../interfaces/IPool.sol";
import "../../interfaces/IStakingProducts.sol";

contract CoverProducts is ICoverProducts, MasterAwareV2, Multicall {

  /* ========== STATE VARIABLES ========== */

  Product[] internal _products;
  ProductType[] internal _productTypes;

  // productId => product name
  mapping(uint => string) internal productNames;
  // productTypeId => productType name
  mapping(uint => string) internal productTypeNames;
  // product id => allowed pool ids
  mapping(uint => uint[]) internal allowedPools;

  mapping(uint => Metadata[]) internal productMetadata;
  mapping(uint => Metadata[]) internal productTypeMetadata;

  /* ========== CONSTANTS ========== */

  uint private constant PRICE_DENOMINATOR = 10000;
  uint private constant CAPACITY_REDUCTION_DENOMINATOR = 10000;

  /* ========== VIEWS ========== */

  function getProductType(uint productTypeId) external view returns (ProductType memory) {
    return _productTypes[productTypeId];
  }

  function getProductTypeName(uint productTypeId) external view returns (string memory) {
    return productTypeNames[productTypeId];
  }

  function getProductTypeCount() external view returns (uint) {
    return _productTypes.length;
  }

  function getProductTypes() external view returns (ProductType[] memory) {
    return _productTypes;
  }

  function getProduct(uint productId) external view returns (Product memory) {
    return _products[productId];
  }

  function getProductName(uint productId) external view returns (string memory) {
    return productNames[productId];
  }

  function getProductCount() public view returns (uint) {
    return _products.length;
  }

  function getProducts() external view returns (Product[] memory) {
    return _products;
  }

  function getProductWithType(uint productId)  external override view returns (
    Product memory product,
    ProductType memory productType
  ) {
    product = _products[productId];
    productType = _productTypes[product.productType];
  }

  function getLatestProductMetadata(uint productId) external view returns (Metadata memory) {
    uint metadataLength = productMetadata[productId].length;
    return metadataLength > 0
      ? productMetadata[productId][metadataLength - 1]
      : Metadata("", 0);
  }

  function getLatestProductTypeMetadata(uint productTypeId) external view returns (Metadata memory) {
    uint metadataLength = productTypeMetadata[productTypeId].length;
    return metadataLength > 0
      ? productTypeMetadata[productTypeId][metadataLength - 1]
      : Metadata("", 0);
  }

  function getProductMetadata(uint productId) external view returns (Metadata[] memory) {
    return productMetadata[productId];
  }

  function getProductTypeMetadata(uint productTypeId) external view returns (Metadata[] memory) {
    return productTypeMetadata[productTypeId];
  }

  function getAllowedPools(uint productId) external view returns (uint[] memory _allowedPools) {

    uint allowedPoolCount = allowedPools[productId].length;
    _allowedPools = new uint[](allowedPoolCount);

    for (uint i = 0; i < allowedPoolCount; i++) {
      _allowedPools[i] = allowedPools[productId][i];
    }
  }

  function getAllowedPoolsCount(uint productId) external view returns (uint) {
    return allowedPools[productId].length;
  }

  function getInitialPrices(
    uint[] calldata productIds
  ) external view returns (uint[] memory initialPrices) {

    uint productCount = _products.length;
    initialPrices = new uint[](productIds.length);

    for (uint i = 0; i < productIds.length; i++) {
      uint productId = productIds[i];

      if (productId >= productCount) {
        revert ProductNotFound();
      }

      initialPrices[i] = _products[productId].initialPriceRatio;
    }
  }

  function getCapacityReductionRatios(
    uint[] calldata productIds
  ) external view returns (uint[] memory capacityReductionRatios) {

    uint productCount = _products.length;
    capacityReductionRatios = new uint[](productIds.length);

    for (uint i = 0; i < productIds.length; i++) {
      uint productId = productIds[i];

      if (productId >= productCount) {
        revert ProductNotFound();
      }

      capacityReductionRatios[i] = _products[productId].capacityReductionRatio;
    }
  }

  function prepareStakingProductsParams(
    ProductInitializationParams[] calldata params
  ) external view returns (
    ProductInitializationParams[] memory validatedParams
  ) {

    uint productCount = _products.length;
    uint inputLength = params.length;
    validatedParams = new ProductInitializationParams[](inputLength);

    // override with initial price and check if pool is allowed
    for (uint i = 0; i < inputLength; i++) {

      uint productId = params[i].productId;

      if (productId >= productCount) {
        revert ProductNotFound();
      }

      // if there is a list of allowed pools for this product - the new pool didn't exist yet
      // so the product can't be in it
      if (allowedPools[productId].length > 0) {
        revert PoolNotAllowedForThisProduct(productId);
      }

      Product memory product = _products[productId];

      if (product.isDeprecated) {
        revert ProductDeprecated();
      }

      validatedParams[i] = params[i];
      validatedParams[i].initialPrice = product.initialPriceRatio;
    }
  }

  /* ========== PRODUCT CONFIGURATION ========== */

  function setProducts(ProductParam[] calldata productParams) external override onlyAdvisoryBoard {

    uint unsupportedCoverAssetsBitmap = type(uint).max;
    uint globalMinPriceRatio = cover().getGlobalMinPriceRatio();

    uint poolCount = stakingProducts().getStakingPoolCount();
    Asset[] memory assets = pool().getAssets();
    uint assetsLength = assets.length;

    for (uint i = 0; i < assetsLength; i++) {
      if (assets[i].isCoverAsset && !assets[i].isAbandoned) {
        // clear the bit at index i
        unsupportedCoverAssetsBitmap ^= 1 << i;
      }
    }

    for (uint i = 0; i < productParams.length; i++) {

      ProductParam calldata param = productParams[i];
      Product calldata product = param.product;

      if (product.productType >= _productTypes.length) {
        revert ProductTypeNotFound();
      }

      if (unsupportedCoverAssetsBitmap & product.coverAssets != 0) {
        revert UnsupportedCoverAssets();
      }

      if (product.initialPriceRatio < globalMinPriceRatio) {
        revert InitialPriceRatioBelowGlobalMinPriceRatio();
      }

      if (product.initialPriceRatio > PRICE_DENOMINATOR) {
        revert InitialPriceRatioAbove100Percent();
      }

      if (product.capacityReductionRatio > CAPACITY_REDUCTION_DENOMINATOR) {
        revert CapacityReductionRatioAbove100Percent();
      }

      if (param.allowedPools.length > 0) {
        for (uint j = 0; j < param.allowedPools.length; j++) {
          if (param.allowedPools[j] > poolCount || param.allowedPools[j] == 0) {
            revert StakingPoolDoesNotExist();
          }
        }
      }

      // New product has id == uint256.max
      if (param.productId == type(uint256).max) {
        uint productId = _products.length;

        // the metadata is optional, do not push if empty
        if (bytes(param.ipfsMetadata).length > 0) {
          productMetadata[productId].push(Metadata(param.ipfsMetadata, block.timestamp));
        }

        productNames[productId] = param.productName;
        allowedPools[productId] = param.allowedPools;

        _products.push(product);
        emit ProductSet(productId);
        continue;
      }

      // Existing product
      if (param.productId >= _products.length) {
        revert ProductNotFound();
      }

      Product storage newProductValue = _products[param.productId];
      newProductValue.isDeprecated = product.isDeprecated;
      newProductValue.coverAssets = product.coverAssets;
      newProductValue.initialPriceRatio = product.initialPriceRatio;
      newProductValue.capacityReductionRatio = product.capacityReductionRatio;

      allowedPools[param.productId] = param.allowedPools;

      if (bytes(param.productName).length > 0) {
        productNames[param.productId] = param.productName;
      }

      if (bytes(param.ipfsMetadata).length > 0) {
        productMetadata[param.productId].push(Metadata(param.ipfsMetadata, block.timestamp));
      }

      emit ProductSet(param.productId);
    }
  }

  function setProductTypes(ProductTypeParam[] calldata productTypeParams) external onlyAdvisoryBoard {
    for (uint i = 0; i < productTypeParams.length; i++) {
      ProductTypeParam calldata param = productTypeParams[i];

      // New product has id == uint256.max
      if (param.productTypeId == type(uint256).max) {
        uint productTypeId = _productTypes.length;

        // the product type metadata is mandatory
        if (bytes(param.ipfsMetadata).length == 0) {
          revert MetadataRequired();
        }

        productTypeMetadata[productTypeId].push(Metadata(param.ipfsMetadata, block.timestamp));
        productTypeNames[productTypeId] = param.productTypeName;
        _productTypes.push(param.productType);

        emit ProductTypeSet(productTypeId);
        continue;
      }

      if (param.productTypeId >= _productTypes.length) {
        revert ProductTypeNotFound();
      }

      _productTypes[param.productTypeId].gracePeriod = param.productType.gracePeriod;

      if (bytes(param.productTypeName).length > 0) {
        productTypeNames[param.productTypeId] = param.productTypeName;
      }

      if (bytes(param.ipfsMetadata).length > 0) {
        productTypeMetadata[param.productTypeId].push(Metadata(param.ipfsMetadata, block.timestamp));
      }

      emit ProductTypeSet(param.productTypeId);
    }
  }

  function setProductsMetadata(
    uint[] calldata productIds,
    string[] calldata ipfsMetadata
  ) external onlyAdvisoryBoard {

    if (productIds.length != ipfsMetadata.length) {
      revert MismatchedArrayLengths();
    }

    uint productCount = _products.length;

    for (uint i = 0; i < productIds.length; i++) {
      uint productId = productIds[i];

      if (productId >= productCount) {
        revert ProductNotFound();
      }

      productMetadata[productId].push(Metadata(ipfsMetadata[i], block.timestamp));
    }
  }

  function setProductTypesMetadata(
    uint[] calldata productTypeIds,
    string[] calldata ipfsMetadata
  ) external onlyAdvisoryBoard {

    if (productTypeIds.length != ipfsMetadata.length) {
      revert MismatchedArrayLengths();
    }

    uint productTypeCount = _productTypes.length;

    for (uint i = 0; i < productTypeIds.length; i++) {
      uint productTypeId = productTypeIds[i];

      if (productTypeId >= productTypeCount) {
        revert ProductTypeNotFound();
      }

      if (bytes(ipfsMetadata[i]).length == 0) {
        revert MetadataRequired();
      }

      productTypeMetadata[productTypeId].push(Metadata(ipfsMetadata[i], block.timestamp));
    }
  }

  /* ========== COVER ASSETS HELPERS ========== */

  // Returns true if the product exists and the pool is authorized to have the product
  function isPoolAllowed(uint productId, uint poolId) public view returns (bool) {

    uint poolCount = allowedPools[productId].length;

    // If no pools are specified, every pool is allowed
    if (poolCount == 0) {
      return true;
    }

    for (uint i = 0; i < poolCount; i++) {
      if (allowedPools[productId][i] == poolId) {
        return true;
      }
    }

    // Product has allow list and pool is not in it
    return false;
  }

  function requirePoolIsAllowed(uint[] calldata productIds, uint poolId) external view {
    for (uint i = 0; i < productIds.length; i++) {
      if (!isPoolAllowed(productIds[i], poolId) ) {
        revert PoolNotAllowedForThisProduct(productIds[i]);
      }
    }
  }

  /* ========== DEPENDENCIES ========== */

  function migrateCoverProducts() external {
    require(_products.length == 0, "CoverProducts: _products already migrated");
    require(_productTypes.length == 0, "CoverProducts: _productTypes already migrated");

    ILegacyCover _cover = ILegacyCover(address(cover()));
    IStakingPoolFactory _stakingPoolFactory = IStakingPoolFactory(_cover.stakingPoolFactory());

    Product[] memory _productsToMigrate = _cover.getProducts();
    uint _productTypeCount = _cover.productTypesCount();
    uint stakingPoolCount = _stakingPoolFactory.stakingPoolCount();

    for (uint i = 0; i < _productsToMigrate.length; i++) {
      _products.push(_productsToMigrate[i]);
      productNames[i] = _cover.productNames(i);
      uint[] storage _allowedPools = allowedPools[i];

      if (!_productsToMigrate[i].useFixedPrice || _productsToMigrate[i].isDeprecated) {
        continue;
      }

      for (uint j = 0; j < stakingPoolCount; j++) {
        try _cover.allowedPools(i, j) returns (uint poolId) {
          _allowedPools.push(poolId);
        } catch {
          break;
        }
      }
    }

    for (uint i = 0; i < _productTypeCount; i++) {
      ProductType memory _productTypeToMigrate = _cover.productTypes(i);
      _productTypes.push(_productTypeToMigrate);
      productTypeNames[i] = _cover.productTypeNames(i);
    }
  }

  /* ========== DEPENDENCIES ========== */

  function pool() internal view returns (IPool) {
    return IPool(internalContracts[uint(ID.P1)]);
  }

  function cover() internal view returns (ICover) {
    return ICover(internalContracts[uint(ID.CO)]);
  }

  function stakingProducts() internal view returns (IStakingProducts) {
    return IStakingProducts(internalContracts[uint(ID.SP)]);
  }

  function changeDependentContractAddress() public {
    internalContracts[uint(ID.P1)] = master.getLatestAddress("P1");
    internalContracts[uint(ID.CO)] = master.getLatestAddress("CO");
    internalContracts[uint(ID.MR)] = master.getLatestAddress("MR");
    internalContracts[uint(ID.SP)] = master.getLatestAddress("SP");
  }

}

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