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

pragma solidity ^0.8.18;

import "@openzeppelin/contracts-v4/token/ERC20/IERC20.sol";
import "../../interfaces/IMCR.sol";
import "../../interfaces/INXMToken.sol";
import "../../interfaces/IPool.sol";
import "../../interfaces/IPriceFeedOracle.sol";
import "../../interfaces/IQuotationData.sol";
import "../../interfaces/ICover.sol";
import "../../abstract/MasterAwareV2.sol";
import "../../libraries/Math.sol";

contract MCR is IMCR, MasterAwareV2 {
  // sizeof(qd) + 96 = 160 + 96 = 256 (occupies entire slot)
  uint96 _unused;

  // the following values are expressed in basis points
  uint24 public mcrFloorIncrementThreshold = 13000;
  uint24 public maxMCRFloorIncrement = 100;
  uint24 public maxMCRIncrement = 500;
  uint24 public gearingFactor = 48000;
  // min update between MCR updates in seconds
  uint24 public minUpdateTime = 3600;

  uint112 public mcrFloor;
  uint112 public mcr;
  uint112 public desiredMCR;
  uint32 public lastUpdateTime;

  IMCR public previousMCR;

  event MCRUpdated(
    uint mcr,
    uint desiredMCR,
    uint mcrFloor,
    uint mcrETHWithGear,
    uint totalSumAssured
  );

  uint constant UINT24_MAX = type(uint24).max;
  uint constant MAX_MCR_ADJUSTMENT = 100;
  uint constant BASIS_PRECISION = 10000;

  constructor (address masterAddress) {
    changeMasterAddress(masterAddress);

    if (masterAddress != address(0)) {
      previousMCR = IMCR(master.getLatestAddress("MC"));
    }
  }

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

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

  function memberRoles() internal view returns (IMemberRoles) {
    return IMemberRoles(internalContracts[uint(ID.MR)]);
  }

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

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

  function initialize() internal {

    address currentMCR = master.getLatestAddress("MC");

    if (address(previousMCR) == address(0) || currentMCR != address(this)) {
      // already initialized or not ready for initialization
      return;
    }

    // copy over values
    mcrFloor = previousMCR.mcrFloor();
    mcr = previousMCR.mcr();
    desiredMCR = previousMCR.desiredMCR();
    lastUpdateTime = previousMCR.lastUpdateTime();

    // copy over parameters
    mcrFloorIncrementThreshold = previousMCR.mcrFloorIncrementThreshold();
    maxMCRFloorIncrement = previousMCR.maxMCRFloorIncrement();
    maxMCRIncrement = previousMCR.maxMCRIncrement();
    gearingFactor = previousMCR.gearingFactor();
    minUpdateTime = previousMCR.minUpdateTime();

    previousMCR = IMCR(address(0));
  }

  /**
   * @dev Gets total sum assured (in ETH).
   * @return amount of sum assured
   */
  function getAllSumAssurance() public view returns (uint) {

    IPool _pool = pool();
    IPriceFeedOracle priceFeed = _pool.priceFeedOracle();
    ICover _cover = cover();

    uint totalActiveCoverAmountInEth = _cover.totalActiveCoverInAsset(0);

    Asset[] memory assets = _pool.getAssets();

    // the first asset is ETH. skip it, it's already counted
    for (uint i = 1; i < assets.length; i++) {
      uint activeCoverAmount = _cover.totalActiveCoverInAsset(i);
      uint assetAmountInEth = priceFeed.getEthForAsset(assets[i].assetAddress, activeCoverAmount);
      totalActiveCoverAmountInEth += assetAmountInEth;
    }

    return totalActiveCoverAmountInEth;
  }

  /*
  * @dev trigger an MCR update. Current virtual MCR value is synced to storage, mcrFloor is potentially updated
  * and a new desiredMCR value to move towards is set.
  *
  */
  function updateMCR() whenNotPaused public {
    _updateMCR(pool().getPoolValueInEth(), false);
  }

  function updateMCRInternal(uint poolValueInEth, bool forceUpdate) public onlyInternal {
    _updateMCR(poolValueInEth, forceUpdate);
  }

  function _updateMCR(uint poolValueInEth, bool forceUpdate) internal {

    // read with 1 SLOAD
    uint _mcrFloorIncrementThreshold = mcrFloorIncrementThreshold;
    uint _maxMCRFloorIncrement = maxMCRFloorIncrement;
    uint _gearingFactor = gearingFactor;
    uint _minUpdateTime = minUpdateTime;
    uint _mcrFloor =  mcrFloor;

    // read with 1 SLOAD
    uint112 _mcr = mcr;
    uint112 _desiredMCR = desiredMCR;
    uint32 _lastUpdateTime = lastUpdateTime;

    if (!forceUpdate && _lastUpdateTime + _minUpdateTime > block.timestamp) {
      return;
    }

    if (block.timestamp > _lastUpdateTime && pool().calculateMCRRatio(poolValueInEth, _mcr) >= _mcrFloorIncrementThreshold) {
        // MCR floor updates by up to maxMCRFloorIncrement percentage per day whenever the MCR ratio exceeds 1.3
        // MCR floor is monotonically increasing.
      uint basisPointsAdjustment = Math.min(
        _maxMCRFloorIncrement * (block.timestamp - _lastUpdateTime) / 1 days,
        _maxMCRFloorIncrement
      );
      uint newMCRFloor = _mcrFloor * (basisPointsAdjustment + BASIS_PRECISION) / BASIS_PRECISION;
      require(newMCRFloor <= type(uint112).max, 'MCR: newMCRFloor overflow');

      mcrFloor = uint112(newMCRFloor);
    }

    // sync the current virtual MCR value to storage
    uint112 newMCR = uint112(getMCR());
    if (newMCR != _mcr) {
      mcr = newMCR;
    }

    // the desiredMCR cannot fall below the mcrFloor but may have a higher or lower target value based
    // on the changes in the totalSumAssured in the system.
    uint totalSumAssured = getAllSumAssurance();
    uint gearedMCR = totalSumAssured * BASIS_PRECISION / _gearingFactor;
    uint112 newDesiredMCR = uint112(Math.max(gearedMCR, mcrFloor));
    if (newDesiredMCR != _desiredMCR) {
      desiredMCR = newDesiredMCR;
    }

    lastUpdateTime = uint32(block.timestamp);

    emit MCRUpdated(mcr, desiredMCR, mcrFloor, gearedMCR, totalSumAssured);
  }

  /**
   * @dev Calculates the current virtual MCR value. The virtual MCR value moves towards the desiredMCR value away
   * from the stored mcr value at constant velocity based on how much time passed from the lastUpdateTime.
   * The total change in virtual MCR cannot exceed 1% of stored mcr.
   *
   * This approach allows for the MCR to change smoothly across time without sudden jumps between values, while
   * always progressing towards the desiredMCR goal. The desiredMCR can change subject to the call of _updateMCR
   * so the virtual MCR value may change direction and start decreasing instead of increasing or vice-versa.
   *
   * @return mcr
   */
  function getMCR() public view returns (uint) {

    // read with 1 SLOAD
    uint _mcr = mcr;
    uint _desiredMCR = desiredMCR;
    uint _lastUpdateTime = lastUpdateTime;

    if (block.timestamp == _lastUpdateTime) {
      return _mcr;
    }

    uint _maxMCRIncrement = maxMCRIncrement;

    uint basisPointsAdjustment = _maxMCRIncrement * (block.timestamp - _lastUpdateTime) / 1 days;
    basisPointsAdjustment = Math.min(basisPointsAdjustment, MAX_MCR_ADJUSTMENT);

    if (_desiredMCR > _mcr) {
      return Math.min(_mcr * (basisPointsAdjustment + BASIS_PRECISION) / BASIS_PRECISION, _desiredMCR);
    }

    // in case desiredMCR <= mcr
    return Math.max(_mcr * (BASIS_PRECISION - basisPointsAdjustment) / (BASIS_PRECISION), _desiredMCR);
  }

  function getGearedMCR() external view returns (uint) {
    return getAllSumAssurance() * BASIS_PRECISION / gearingFactor;
  }

  /**
   * @dev Updates Uint Parameters
   * @param code parameter code
   * @param val new value
   */
  function updateUintParameters(bytes8 code, uint val) public onlyGovernance {

    if (code == "DMCT") {

      require(val <= UINT24_MAX, "MCR: value too large");
      mcrFloorIncrementThreshold = uint24(val);

    } else if (code == "DMCI") {

      require(val <= UINT24_MAX, "MCR: value too large");
      maxMCRFloorIncrement = uint24(val);

    } else if (code == "MMIC") {

      require(val <= UINT24_MAX, "MCR: value too large");
      maxMCRIncrement = uint24(val);

    } else if (code == "GEAR") {

      require(val <= UINT24_MAX, "MCR: value too large");
      gearingFactor = uint24(val);

    } else if (code == "MUTI") {

      require(val <= UINT24_MAX, "MCR: value too large");
      minUpdateTime = uint24(val);

    } else {
      revert("Invalid param code");
    }
  }
}

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

abstract contract MasterAwareV2 is IMasterAwareV2 {

  INXMMaster 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 = INXMMaster(masterAddress);
  }

}

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

pragma solidity >=0.5.0;

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

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

enum ClaimMethod {
  IndividualClaims,
  YieldTokenIncidents
}

// Basically CoverStatus from QuotationData.sol but with the extra Migrated status to avoid
// polluting Cover.sol state layout with new status variables.
enum LegacyCoverStatus {
  Active,
  ClaimAccepted,
  ClaimDenied,
  CoverExpired,
  ClaimSubmitted,
  Requested,
  Migrated
}

/* io structs */

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

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

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

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

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

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

/* 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;
}

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;
}

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

interface ICover {

  /* ========== 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 products(uint id) external view returns (Product memory);

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

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

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

  function productsCount() external view returns (uint);

  function productTypesCount() external view returns (uint);

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

  function globalCapacityRatio() external view returns (uint);

  function globalRewardsRatio() external view returns (uint);

  function getPriceAndCapacityRatios(uint[] calldata productIds) external view returns (
    uint _globalCapacityRatio,
    uint _globalMinPriceRatio,
    uint[] memory _initialPriceRatios,
    uint[] memory _capacityReductionRatios
  );

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

  function addLegacyCover(
    uint productId,
    uint coverAsset,
    uint amount,
    uint start,
    uint period,
    address newOwner
  ) external returns (uint coverId);

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

  function setProductTypes(ProductTypeParam[] calldata productTypes) external;

  function setProducts(ProductParam[] calldata params) external;

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

  function coverNFT() external returns (ICoverNFT);

  function stakingNFT() external returns (IStakingNFT);

  function stakingPoolFactory() external returns (IStakingPoolFactory);

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

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

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

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

  // Auth
  error OnlyMemberRolesCanOperateTransfer();
  error OnlyOwnerOrApproved();

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

  // Products
  error ProductDoesntExist();
  error ProductTypeNotFound();
  error ProductDeprecated();
  error ProductDeprecatedOrNotInitialized();
  error InvalidProductType();
  error UnexpectedProductId();

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

  // Price & Commission
  error PriceExceedsMaxPremiumInAsset();
  error TargetPriceBelowGlobalMinPriceRatio();
  error InitialPriceRatioBelowGlobalMinPriceRatio();
  error InitialPriceRatioAbove100Percent();
  error CommissionRateTooHigh();

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

  // Misc
  error AlreadyInitialized();
  error ExpiredCoversCannotBeEdited();
  error InsufficientCoverAmountAllocated();
  error UnexpectedPoolId();
  error CapacityReductionRatioAbove100Percent();
}

// 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 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;

interface IMasterAwareV2 {

  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
    CL, // CoverMigrator.sol
    AS, // Assessment.sol
    CI, // IndividualClaims.sol - Claims for Individuals
    CG, // YieldTokenIncidents.sol - Claims for Groups
    // TODO: 1) if you update this enum, update lib/constants.js as well
    // TODO: 2) TK is not an internal contract!
    //          If you want to add a new contract below TK, remove TK and make it immutable in all
    //          contracts that are using it (currently LegacyGateway and LegacyPooledStaking).
    TK  // NXMToken.sol
  }

  function changeMasterAddress(address masterAddress) external;

  function changeDependentContractAddress() external;

}

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

pragma solidity >=0.5.0;

interface IMCR {

  function updateMCRInternal(uint poolValueInEth, bool forceUpdate) external;

  function getMCR() external view returns (uint);

  function mcr() external view returns (uint112);

  function mcrFloor() external view returns (uint112);

  function desiredMCR() external view returns (uint112);

  function lastUpdateTime() external view returns (uint32);

  function mcrFloorIncrementThreshold() external view returns (uint24);

  function maxMCRFloorIncrement() external view returns (uint24);

  function maxMCRIncrement() external view returns (uint24);

  function gearingFactor() external view returns (uint24);

  function minUpdateTime() external view returns (uint24);

}

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

pragma solidity >=0.5.0;

interface IMemberRoles {

  enum Role {Unassigned, AdvisoryBoard, Member, Owner}

  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);
}

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

pragma solidity >=0.5.0;

interface INXMMaster {

  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;

interface INXMToken {

  function burn(uint256 amount) external returns (bool);

  function burnFrom(address from, uint256 value) external returns (bool);

  function operatorTransfer(address from, uint256 value) external returns (bool);

  function mint(address account, uint256 amount) external;

  function isLockedForMV(address member) external view returns (uint);

  function addToWhiteList(address _member) external returns (bool);

  function removeFromWhiteList(address _member) external returns (bool);

  function changeOperator(address _newOperator) external returns (bool);

  function lockForMemberVote(address _of, uint _days) external;

  /**
 * @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 `recipient`.
   *
   * Returns a boolean value indicating whether the operation succeeded.
   *
   * Emits a {Transfer} event.
   */
  function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, uint256 amount) external returns (bool);

  /**
   * @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);
}

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

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

  function buyNXM(uint minTokensOut) external payable;

  function sellNXM(uint tokenAmount, uint minEthOut) external;

  function sellNXMTokens(uint tokenAmount) external returns (bool);

  function transferAssetToSwapOperator(address asset, uint amount) external;

  function setSwapDetailsLastSwapTime(address asset, uint32 lastSwapTime) external;

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

  function getNXMForEth(uint ethAmount) external view returns (uint);

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

  function upgradeCapitalPool(address payable newPoolAddress) external;

  function priceFeedOracle() external view returns (IPriceFeedOracle);

  function getPoolValueInEth() external view returns (uint);

  function getEthForNXM(uint nxmAmount) external view returns (uint ethAmount);

  function calculateEthForNXM(uint nxmAmount, uint currentTotalAssetValue, uint mcrEth) external pure returns (uint);

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

  function calculateTokenSpotPrice(uint totalAssetValue, uint mcrEth) external pure returns (uint tokenPrice);

  function getTokenPriceInAsset(uint assetId) external view 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 latestAnswer() external view returns (int);
}

struct OracleAsset {
  Aggregator aggregator;
  uint8 decimals;
}

interface IPriceFeedOracle {

  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 IQuotationData {

  function authQuoteEngine() external view returns (address);
  function stlp() external view returns (uint);
  function stl() external view returns (uint);
  function pm() external view returns (uint);
  function minDays() external view returns (uint);
  function tokensRetained() external view returns (uint);
  function kycAuthAddress() external view returns (address);

  function refundEligible(address) external view returns (bool);
  function holdedCoverIDStatus(uint) external view returns (uint);
  function timestampRepeated(uint) external view returns (bool);

  enum HCIDStatus {NA, kycPending, kycPass, kycFailedOrRefunded, kycPassNoCover}
  enum CoverStatus {Active, ClaimAccepted, ClaimDenied, CoverExpired, ClaimSubmitted, Requested}

  function addInTotalSumAssuredSC(address _add, bytes4 _curr, uint _amount) external;

  function subFromTotalSumAssuredSC(address _add, bytes4 _curr, uint _amount) external;

  function subFromTotalSumAssured(bytes4 _curr, uint _amount) external;

  function addInTotalSumAssured(bytes4 _curr, uint _amount) external;

  function setTimestampRepeated(uint _timestamp) external;

  /// @dev Creates a blank new cover.
  function addCover(
    uint16 _coverPeriod,
    uint _sumAssured,
    address payable _userAddress,
    bytes4 _currencyCode,
    address _scAddress,
    uint premium,
    uint premiumNXM
  ) external;


  function addHoldCover(
    address payable from,
    address scAddress,
    bytes4 coverCurr,
    uint[] calldata coverDetails,
    uint16 coverPeriod
  ) external;

  function setRefundEligible(address _add, bool status) external;

  function setHoldedCoverIDStatus(uint holdedCoverID, uint status) external;

  function setKycAuthAddress(address _add) external;

  function changeAuthQuoteEngine(address _add) external;

  function getUintParameters(bytes8 code) external view returns (bytes8 codeVal, uint val);

  function getProductDetails()
  external
  view
  returns (
    uint _minDays,
    uint _pm,
    uint _stl,
    uint _stlp
  );

  function getCoverLength() external view returns (uint len);

  function getAuthQuoteEngine() external view returns (address _add);

  function getTotalSumAssured(bytes4 _curr) external view returns (uint amount);

  function getAllCoversOfUser(address _add) external view returns (uint[] memory allCover);

  function getUserCoverLength(address _add) external view returns (uint len);

  function getCoverStatusNo(uint _cid) external view returns (uint8);

  function getCoverPeriod(uint _cid) external view returns (uint32 cp);

  function getCoverSumAssured(uint _cid) external view returns (uint sa);

  function getCurrencyOfCover(uint _cid) external view returns (bytes4 curr);

  function getValidityOfCover(uint _cid) external view returns (uint date);

  function getscAddressOfCover(uint _cid) external view returns (uint, address);

  function getCoverMemberAddress(uint _cid) external view returns (address payable _add);

  function getCoverPremiumNXM(uint _cid) external view returns (uint _premiumNXM);

  function getCoverDetailsByCoverID1(
    uint _cid
  )
  external
  view
  returns (
    uint cid,
    address _memberAddress,
    address _scAddress,
    bytes4 _currencyCode,
    uint _sumAssured,
    uint premiumNXM
  );

  function getCoverDetailsByCoverID2(
    uint _cid
  )
  external
  view
  returns (
    uint cid,
    uint8 status,
    uint sumAssured,
    uint16 coverPeriod,
    uint validUntil
  );

  function getHoldedCoverDetailsByID1(
    uint _hcid
  )
  external
  view
  returns (
    uint hcid,
    address scAddress,
    bytes4 coverCurr,
    uint16 coverPeriod
  );

  function getUserHoldedCoverLength(address _add) external view returns (uint);

  function getUserHoldedCoverByIndex(address _add, uint index) external view returns (uint);

  function getHoldedCoverDetailsByID2(
    uint _hcid
  )
  external
  view
  returns (
    uint hcid,
    address payable memberAddress,
    uint[] memory coverDetails
  );

  function getTotalSumAssuredSC(address _add, bytes4 _curr) external view returns (uint amount);

  function changeCoverStatusNo(uint _cid, uint8 _stat) 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 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 StakedProductParam {
  uint productId;
  bool recalculateEffectiveWeight;
  bool setTargetWeight;
  uint8 targetWeight;
  bool setTargetPrice;
  uint96 targetPrice;
}

  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);

  // Auth
  error OnlyCoverContract();
  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();

}

// 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 ^0.8.18;

/**
 * @dev Simple library that defines min, max and babylonian sqrt functions
 */
library Math {

  function min(uint a, uint b) internal pure returns (uint) {
    return a < b ? a : b;
  }

  function max(uint a, uint b) internal pure returns (uint) {
    return a > b ? a : b;
  }

  function sum(uint[] memory items) internal pure returns (uint) {
    uint count = items.length;
    uint total;

    for (uint i = 0; i < count; i++) {
      total += items[i];
    }

    return total;
  }

  function divRound(uint a, uint b) internal pure returns (uint) {
    return (a + b / 2) / b;
  }

  function divCeil(uint a, uint b) internal pure returns (uint) {
    return (a + b - 1) / b;
  }

  function roundUp(uint a, uint b) internal pure returns (uint) {
    return divCeil(a, b) * b;
  }

  // babylonian method
  function sqrt(uint y) internal pure returns (uint) {

    if (y > 3) {
      uint z = y;
      uint x = y / 2 + 1;
      while (x < z) {
        z = x;
        x = (y / x + x) / 2;
      }
      return z;
    }

    if (y != 0) {
      return 1;
    }

    return 0;
  }

}

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

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00000000000000000000000001bfd82675dbcc7762c84019ca518e701c0cd07e

-----Decoded View---------------
Arg [0] : masterAddress (address): 0x01BFd82675DBCc7762C84019cA518e701C0cD07e

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000001bfd82675dbcc7762c84019ca518e701c0cd07e