// File: supermarket/contracts/types/T.sol



pragma solidity 0.8.8;

interface IWLP {
 function depositFromSuper() external payable;
 function getMaxTVLExposed() external  view returns(uint256);
 function SuperMarketPayoutNative(address from,address to,uint256 claimAmt,uint256 a,uint256 b) payable external;
 function SuperMarketPayoutToken(address to,uint256 _amt) external;
}

// interface AggregatorV3Interface {

//   // getRoundData and latestRoundData should both raise "No data present"
//   // if they do not have data to report, instead of returning unset values
//   // which could be misinterpreted as actual reported values.
//   function getRoundData(
//     uint80 _roundId
//   )
//     external
//     view
//     returns (
//       uint80 roundId,
//       int256 answer,
//       uint256 startedAt,
//       uint256 updatedAt,
//       uint80 answeredInRound
//     );

//   function latestRoundData()
//     external
//     view
//     returns (
//       uint80 roundId,
//       int256 answer,
//       uint256 startedAt,
//       uint256 updatedAt,
//       uint80 answeredInRound
//     );

// }

    // struct Market{
    //   uint256  minBetAmount;
    //   uint256  maxBetAmount;
    //   //uint256  treasuryAmount;
    //   uint256  currentEpoch;
    //   uint256 currentRpoch;
    //   uint256  oracleLatestRoundId; 
    //   uint256  oracleUpdateAllowance;
    //   //uint256  maxTVLExposed;
    //   uint256  bufferSeconds;
    //   uint256  intervalSeconds;
    //   bool     genesisLockOnce;
    //   bool     genesisStartOnce;
    //  //AggregatorV3Interface oracle;
    //  // IWLP wLP;

    // }
    struct Market{
      uint256  minBetAmount;
      uint256  maxBetAmount;
    //  uint256  treasuryAmount;
      uint256 genesisStartTime;
      uint256  initEpoch;
      uint256  lastEpoch;
    //   uint256  oracleLatestRoundId; 
    //   uint256  oracleUpdateAllowance;
    //   uint256  maxTVLExposed;
      uint256  bufferSeconds;
      uint256  intervalSeconds;
      bool     genesisLockOnce;
      bool     genesisStartOnce;
    //  AggregatorV3Interface oracle;
    //  IWLP wLP;

    }


    enum Position {
        Bull,
        Bear
    }

    // struct Asset{
    //   uint256  minBetAmount;
    //   uint256  treasuryAmount;
    //   uint256  currentEpoch;
    //   uint256  oracleLatestRoundId; 
    //   uint256  oracleUpdateAllowance;
    // }

    struct Round {
        uint256 market;
        // uint256 startTimestamp;
        // uint256 lockTimestamp;
        // uint256 closeTimestamp;
        //int256 lockPrice;
        int256 closePrice;
        //uint256 lockOracleId;
        //uint256 closeOracleId;
        uint256 totalAmount;
        uint256 totalBorrowedAmount;
        // uint256 bullAmount;
        // uint256 bearAmount;
        //uint256 rewardBaseCalAmount;
        //uint256 rewardAmount;
        uint256 initTVLExposed;
        uint256 maxTVLExposed;
        bool oracleCalled;
    }

    struct BetInfo {
        Position position;
        uint256 amount;
        uint256 borrowedAmount; //i.e Leverage = (amount+borrow)/amount;
        //uint256 basePriceOfAsset;
        int256 startPrice;
        int256 lockPrice; //
        uint256 lockOracleId;
        //uint256 payoutAmount; //Expected payout.
        bool claimed; // default false
    }
    struct UserRound{
        uint256[] epochs;
        uint256 lastClaimed;
    }
// File: @openzeppelin/contracts/interfaces/IERC5267.sol


// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol)

pragma solidity ^0.8.0;

interface IERC5267 {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

// File: @openzeppelin/contracts/utils/StorageSlot.sol


// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, `uint256`._
 * _Available since v4.9 for `string`, `bytes`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

// File: @openzeppelin/contracts/utils/ShortStrings.sol


// OpenZeppelin Contracts (last updated v4.9.0) (utils/ShortStrings.sol)

pragma solidity ^0.8.8;


// | string  | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA   |
// | length  | 0x                                                              BB |
type ShortString is bytes32;

/**
 * @dev This library provides functions to convert short memory strings
 * into a `ShortString` type that can be used as an immutable variable.
 *
 * Strings of arbitrary length can be optimized using this library if
 * they are short enough (up to 31 bytes) by packing them with their
 * length (1 byte) in a single EVM word (32 bytes). Additionally, a
 * fallback mechanism can be used for every other case.
 *
 * Usage example:
 *
 * ```solidity
 * contract Named {
 *     using ShortStrings for *;
 *
 *     ShortString private immutable _name;
 *     string private _nameFallback;
 *
 *     constructor(string memory contractName) {
 *         _name = contractName.toShortStringWithFallback(_nameFallback);
 *     }
 *
 *     function name() external view returns (string memory) {
 *         return _name.toStringWithFallback(_nameFallback);
 *     }
 * }
 * ```
 */
library ShortStrings {
    // Used as an identifier for strings longer than 31 bytes.
    bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;

    error StringTooLong(string str);
    error InvalidShortString();

    /**
     * @dev Encode a string of at most 31 chars into a `ShortString`.
     *
     * This will trigger a `StringTooLong` error is the input string is too long.
     */
    function toShortString(string memory str) internal pure returns (ShortString) {
        bytes memory bstr = bytes(str);
        if (bstr.length > 31) {
            revert StringTooLong(str);
        }
        return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
    }

    /**
     * @dev Decode a `ShortString` back to a "normal" string.
     */
    function toString(ShortString sstr) internal pure returns (string memory) {
        uint256 len = byteLength(sstr);
        // using `new string(len)` would work locally but is not memory safe.
        string memory str = new string(32);
        /// @solidity memory-safe-assembly
        assembly {
            mstore(str, len)
            mstore(add(str, 0x20), sstr)
        }
        return str;
    }

    /**
     * @dev Return the length of a `ShortString`.
     */
    function byteLength(ShortString sstr) internal pure returns (uint256) {
        uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;
        if (result > 31) {
            revert InvalidShortString();
        }
        return result;
    }

    /**
     * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.
     */
    function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {
        if (bytes(value).length < 32) {
            return toShortString(value);
        } else {
            StorageSlot.getStringSlot(store).value = value;
            return ShortString.wrap(_FALLBACK_SENTINEL);
        }
    }

    /**
     * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     */
    function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return toString(value);
        } else {
            return store;
        }
    }

    /**
     * @dev Return the length of a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     *
     * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of
     * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.
     */
    function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return byteLength(value);
        } else {
            return bytes(store).length;
        }
    }
}

// File: @openzeppelin/contracts/utils/math/SignedMath.sol


// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

// File: @openzeppelin/contracts/utils/math/Math.sol


// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

// File: @openzeppelin/contracts/utils/Strings.sol


// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)

pragma solidity ^0.8.0;



/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// File: @openzeppelin/contracts/utils/cryptography/ECDSA.sol


// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;


/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

// File: @openzeppelin/contracts/utils/cryptography/EIP712.sol


// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.8;




/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 *
 * _Available since v3.4._
 *
 * @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
 */
abstract contract EIP712 is IERC5267 {
    using ShortStrings for *;

    bytes32 private constant _TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _cachedDomainSeparator;
    uint256 private immutable _cachedChainId;
    address private immutable _cachedThis;

    bytes32 private immutable _hashedName;
    bytes32 private immutable _hashedVersion;

    ShortString private immutable _name;
    ShortString private immutable _version;
    string private _nameFallback;
    string private _versionFallback;

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        _name = name.toShortStringWithFallback(_nameFallback);
        _version = version.toShortStringWithFallback(_versionFallback);
        _hashedName = keccak256(bytes(name));
        _hashedVersion = keccak256(bytes(version));

        _cachedChainId = block.chainid;
        _cachedDomainSeparator = _buildDomainSeparator();
        _cachedThis = address(this);
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _cachedThis && block.chainid == _cachedChainId) {
            return _cachedDomainSeparator;
        } else {
            return _buildDomainSeparator();
        }
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(_TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {EIP-5267}.
     *
     * _Available since v4.9._
     */
    function eip712Domain()
        public
        view
        virtual
        override
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        return (
            hex"0f", // 01111
            _name.toStringWithFallback(_nameFallback),
            _version.toStringWithFallback(_versionFallback),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }
}

// File: @openzeppelin/contracts/utils/cryptography/draft-EIP712.sol


// OpenZeppelin Contracts (last updated v4.8.0) (utils/cryptography/draft-EIP712.sol)

pragma solidity ^0.8.0;

// EIP-712 is Final as of 2022-08-11. This file is deprecated.


// File: supermarket/contracts/Lib/helper.sol


pragma solidity ^0.8.7;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}



/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _setOwner(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _setOwner(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _setOwner(newOwner);
    }

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}



/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account,uint256 asset);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account,uint256 asset);

    //bool private _paused;
    mapping(uint256 => bool) private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        //_paused[0] = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused(uint256 a) public view virtual returns (bool) {
        return _paused[a];
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused(uint256 a) {
        require(!paused(a), "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused(uint256 a) {
        require(paused(a), "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause(uint256 a) internal virtual whenNotPaused(a) {
        _paused[a] = true;
        emit Paused(_msgSender(),a);
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause(uint256 a) internal virtual whenPaused(a) {
        _paused[a] = false;
        emit Unpaused(_msgSender(),a);
    }
}



/**
 * @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 make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}



/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);
}



/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (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);
    }

    function _verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) private pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}




/**
 * @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));
        }
    }

    /**
     * @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");
        }
    }
}
// File: supermarket/contracts/SV5.sol



pragma solidity ^0.8.7;





contract SuperMarketV5  is Ownable, Pausable, ReentrancyGuard, EIP712 {
    using SafeERC20 for IERC20;
    

    bytes32 constant public ENTRY_CALL_HASH_TYPE = keccak256("validateEntry(uint256 epoch,uint256 lev,int256 currentPrice,int256 lockPrice,uint8 position,address addr)");
    bytes32 constant public CLAIM_CALL_HASH_TYPE = keccak256("validateClaim(uint256 asset,uint256 round,uint256 amt,uint256 cp,address addr)");    
    address private SuprMktSigner =0xD1B358dD0f0D7B17d78051e6F4ACAB1AA973BCb4;

    address private adminAddress; // address of the admin


    uint256 private treasuryFee=690; // treasury rate (e.g. 200 = 2%, 150 = 1.50%)
    uint256 private treasuryAmount; // treasury amount that was not claimed
    uint256 private constant MAX_LEV = 1000; //5x [10x]

    //mapping(address=>bool) public operatorAddress;
    mapping(uint256 => mapping(address => BetInfo)) public ledger;
    mapping(uint256 => Round) public rounds;
    mapping(address => UserRound) public userRounds;
    mapping(uint256 => uint256[]) public activeRounds;

    mapping(address => bool) private wlContract;
 

    mapping(uint256 => Market) public market;

    IWLP public wLP; //whale LP

    //uint256 public chain_id;

    // event BetBear(address indexed sender, uint256 indexed epoch, uint256 amount,int256 lockedprice);
    // event BetBull(address indexed sender, uint256 indexed epoch, uint256 amount,int256 lockedprice);
    event SuperBet(address indexed sender, uint256 indexed epoch,Position position, uint256 amount,uint256 borrow,int256 startPrice,int256 lockedprice,uint256 currentRoundId,uint256 initTVL);
    event Claim(address indexed sender, uint256 indexed epoch, uint256 amount);
    //event EndRound(uint256 indexed epoch, uint256 indexed roundId, int256 price,uint256 totalAmount,uint256 utilizedTVL);
    //event LockRound(uint256 indexed epoch);

    event NewAdminAddress(address admin);
    // event NewBufferAndIntervalSeconds(uint256 bufferSeconds, uint256 intervalSeconds);
    // event NewMinMaxBetAmount(uint256 indexed epoch, uint256 minBetAmount,uint256 maxBetAmount);
    event NewTreasuryFee(uint256 indexed epoch, uint256 treasuryFee);
    //event OperatorAddress(address operator,bool flag);



    //event StartRound(uint256 indexed epoch,uint256 maxTVLAvailable);
    //event TokenRecovery(address indexed token, uint256 amount);
    //event TreasuryClaim(uint256 amount);
    event Unpause(uint256 indexed epoch,uint256 asset);

    modifier onlyAdmin() {
        require(msg.sender == adminAddress,"AE:00");//NOT ADMIN
        _;
    }




    modifier notContract() {
        if(wlContract[msg.sender]) return;
        require(!Address.isContract(msg.sender), "AE:04");//NOT CONTRACT
        require(msg.sender == tx.origin, "AE:05");//ONLY USER NO PROXY CONTRACT
        _;
    }

    

     /**
     * @notice Constructor // param _oracleAddress: oracle address
     * @param _wlp: whalepool

     */
    constructor(
  
        address _wlp
    ) EIP712('SUPRMKT','1') 
    {     
       
        adminAddress = msg.sender;

        wLP = IWLP(_wlp);

        }

    /**
     * @notice Bet bull/bear position
     * @param epoch: serial epoch id for a market asset
     * @param asset: Market Asset 
     */
    function superBet(uint256 epoch,uint256 asset,uint256 currentRoundId, int256 currentPrice,uint256 borrowAmount,int256 lockPrice,Position bet,bytes memory signature) external payable whenNotPaused(asset) nonReentrant notContract {
        //(uint256 epoch)=_getRoundIDByAssetEpoch(asset,id);//_getRoundData(epoch);
 
        BetInfo storage betInfo = ledger[epoch][msg.sender];
        Round storage round = rounds[epoch];
        Market storage mark = market[asset];
        userRounds[msg.sender].epochs.push(epoch);
        activeRounds[asset].push(epoch);
        
        (uint256 idStimeLev,uint256 rpochLtimeAmt)=_getCurrentEpochs(asset,mark.genesisStartTime,mark.initEpoch,mark.intervalSeconds);
        mark.lastEpoch = idStimeLev;
        require(epoch == rpochLtimeAmt, "SBE:00");//"Bet is too early/late"
        (idStimeLev,rpochLtimeAmt,)= _getRoundPeriod(idStimeLev,mark.genesisStartTime,mark.initEpoch,mark.intervalSeconds);
        require(
            (block.timestamp > idStimeLev &&
            block.timestamp < rpochLtimeAmt) &&
            ((currentRoundId/10**9) > idStimeLev && (currentRoundId/10**9) < rpochLtimeAmt)
            ,"SBE:01" );//"Round not bettable"); _bettable replaced
        require(msg.value >= mark.minBetAmount && msg.value <= mark.maxBetAmount,"SBE:02");// "Bet amount must be btwn minBetAmount-maxBetamount");
        require(betInfo.amount == 0,"SBE:03");// "Can only bet once per round");
        require(
            currentPrice>0 && lockPrice >0,"ZE:ZeroError"
        );
        idStimeLev=(msg.value+borrowAmount)*100/msg.value;
        //Digest
        bytes32 d = _hashEntries(epoch,idStimeLev,currentPrice,lockPrice,bet,msg.sender);

        //verify
        require(_verify(d,signature)==SuprMktSigner,"SIGN:04");//"Invalid Signature!");
        if(round.totalAmount == 0){
        round.maxTVLExposed = wLP.getMaxTVLExposed();
        round.initTVLExposed = round.maxTVLExposed;
        }
        require(idStimeLev<=MAX_LEV && borrowAmount <= round.maxTVLExposed,"SBE:05");//"Leverage upto 5x and borrow below max Exposed ");

        // Update round data
        rpochLtimeAmt = msg.value;

        round.totalAmount = round.totalAmount + rpochLtimeAmt;
        round.totalBorrowedAmount = round.totalBorrowedAmount + borrowAmount;

        // Update user data

        betInfo.position = bet;
        betInfo.amount = rpochLtimeAmt;
        betInfo.startPrice=currentPrice;
        betInfo.lockOracleId = currentRoundId;
        betInfo.borrowedAmount = borrowAmount;


        //update utilised TVL
        round.maxTVLExposed= round.maxTVLExposed-borrowAmount;
    //     if(bet == Position.Bull){
    //     //lockPrice = currentPrice+lockPrice;
    //     round.bullAmount = round.bullAmount+rpochLtimeAmt;
    //    // emit BetBull(msg.sender, epoch, amount,lockPrice);
    //     }
    //     else{
    //     //lockPrice = currentPrice-lockPrice;
    //     round.bearAmount = round.bearAmount+rpochLtimeAmt;
    //     //emit BetBear(msg.sender, epoch, amount,lockPrice);
    //     }
        betInfo.lockPrice=lockPrice;
        //_safeTransferBNB(address(wLP), msg.value);//transfer funds back to whale pool
        wLP.depositFromSuper{value:msg.value}();
        emit SuperBet(msg.sender, epoch,betInfo.position, betInfo.amount,betInfo.borrowedAmount,betInfo.startPrice,betInfo.lockPrice, betInfo.lockOracleId,round.initTVLExposed);
        
    }
 
    /**
     * @notice Claim reward for an array of epochs
     * @param epoch: epoch value consisting asset and round id.
     */
    function claim(uint256 epoch, uint256 amt,uint256 cp,address claimer,bytes memory signature) payable external nonReentrant notContract {
        uint256 cAmt;//collective Amount
        uint256 fee; //Initializes totalfee
        Round storage round = rounds[epoch];
        BetInfo storage betInfo = ledger[epoch][claimer];
        //UserRound storage usr = userRounds[msg.sender];
        
        (uint256 rid, uint256 a) = _getRoundData(epoch);
        (,,uint256 v) = getRoundPeriod(a, rid);
        
        require(block.timestamp>v,"CE:00");
        require(betInfo.lockPrice >0 && !betInfo.claimed,"CE:01" );
        betInfo.claimed = true;
        if(!(round.oracleCalled) && int(cp)>0){
                round.closePrice = int256(cp);
                round.oracleCalled =true;
            }
        require(round.closePrice == int(cp),"CE:02");
        // require((e-s)<5 && s == usr.lastClaimed,"CE:01");
        // require((e-s)==cp.length && e>s,"CE:02");
    
        //Digest

        bytes32 d = _hashClaims(a,rid,amt,cp,claimer);

        //verify
        require(_verify(d,signature)==SuprMktSigner,"SIGN:04");//"Invalid Signature!");


            uint256 positionAmount;
            //uint256 feeCollected;
            v =0;

            // Round valid, claim rewards
            if((int256(cp) > betInfo.lockPrice && betInfo.position == Position.Bull) ||
            (int256(cp) < betInfo.lockPrice && betInfo.position == Position.Bear)){
                positionAmount = betInfo.amount + betInfo.borrowedAmount;
                v = (positionAmount*treasuryFee)/10000;
            }
            // require(claimable(epochs[i], msg.sender),"SCE:02");// "Not eligible for claim");
            //Round memory round = rounds[epochs[i]];

               // addedReward = (ledger[epochs[i]][msg.sender].amount * round.rewardAmount) / round.rewardBaseCalAmount;
            positionAmount = positionAmount-v;

            cAmt += positionAmount;
            fee += v;
           

        require(amt==cAmt,"CE:AMT");
        //usr.lastClaimed = e;
        //fee =(fee*420)/1000;// 6.9-4.2
        //amt = amt-fee;
        // if(amt >0){
        // wLP.SuperMarketPayoutNative(claimer, amt);
        // wLP.SuperMarketPayoutNative(owner(), fee);
        // //_distributeFee(fee);

        // }
        wLP.SuperMarketPayoutNative{value:0}(msg.sender,claimer,cAmt,betInfo.amount, betInfo.borrowedAmount);
        emit Claim(claimer, epoch, amt);
    }
    
    /**
     * @notice Start genesis round
     * @dev Callable by admin or operator
     */
    function genesisStartRound(uint256 asset,uint256 t,uint256 i,uint256 duration,uint256 maxBet) external whenNotPaused(asset) onlyAdmin {
        Market storage mark = market[asset];
        require(!mark.genesisStartOnce,"SGSE:00");// "Can only run genesisStartRound once");
        require(duration>0 && maxBet>0,"SGSE:01");
        mark.genesisStartTime = t;
        mark.initEpoch= i;
        market[asset].bufferSeconds=60; // number of seconds for valid execution of a prediction round
        market[asset].intervalSeconds=duration; // interval in seconds between two prediction rounds
        market[asset].minBetAmount =  maxBet/10;
        market[asset].maxBetAmount = maxBet;
        mark.genesisStartOnce = true;
    }

    /**
     * @notice called by the admin to pause, triggers stopped state
     * @dev Callable by admin or operator
     */
    function pause(uint256 asset) external whenNotPaused(asset) onlyAdmin {
    _pause(asset);
    // (uint256 cEpoch,)=currentEpoch(asset);
    //     emit Pause(cEpoch,asset);
    }

    /**
     * @notice Claim all rewards in treasury
     * @dev Callable by admin
     */
    // function claimTreasury() external nonReentrant onlyAdmin {
    //     uint256 currentTreasuryAmount = treasuryAmount;
    //     treasuryAmount = 0;
    //     //Team, Reserve, Whales, S Whales
    //     _safeTransferBNB(adminAddress, currentTreasuryAmount);

    //     emit TreasuryClaim(currentTreasuryAmount);
    // }

    /**
     * @notice called by the admin to unpause, returns to normal state
     * Reset genesis state. Once paused, the rounds would need to be kickstarted by genesis
     */
    function unpause(uint256 asset) external whenPaused(asset) onlyAdmin {
        market[asset].genesisStartOnce = false;
        market[asset].genesisLockOnce = false;
        _unpause(asset);
        // (uint256 cEpoch,)=currentEpoch(asset);
        // emit Unpause(cEpoch,asset);
    }
    /**
     * @notice Set Market Config and interval (in seconds)
     * @dev Callable by admin
     */
    function setMarketConfig(uint256 asset,uint256 _bufferSeconds, uint256 _intervalSeconds,
    uint256 _minBetAmount,uint256 _maxBetAmount,address _wlp)external whenPaused(asset) onlyAdmin{
        Market storage m = market[asset];
        //require(_bufferSeconds < _intervalSeconds, "bufferSeconds must be inferior to intervalSeconds");
        m.bufferSeconds = _bufferSeconds;
        m.intervalSeconds = _intervalSeconds;
        m.minBetAmount = _minBetAmount;
        m.maxBetAmount = _maxBetAmount;
        //market[asset].oracle = AggregatorV3Interface(_oracle);
        wLP = IWLP(_wlp); 
    }


    function setWlContract(address c,bool f) external onlyAdmin{
        require(c != address(0),"WLE:00");
        wlContract[c]=f;
    }

    function setMemeSigner (address signer,uint256 asset) external whenPaused(asset) onlyAdmin {
        SuprMktSigner = signer;
    }
    /**
     * @notice It allows the owner to recover tokens sent to the contract by mistake
     * @param _token: token address
     * @param _amount: token amount
     * @dev Callable by owner
     */
    function recoverToken(address _token, uint256 _amount) external onlyOwner {
        IERC20(_token).safeTransfer(address(msg.sender), _amount);

      //  emit TokenRecovery(_token, _amount);
    }

    /**
     * @notice Set admin address
     * @dev Callable by owner
     */
    function setAdmin(address _adminAddress) external onlyOwner {
        require(_adminAddress != address(0),"ZE:00"); //"Cannot be zero address");
        adminAddress = _adminAddress;

        emit NewAdminAddress(_adminAddress);
    }

    /**
     * @notice Returns round epochs and bet information for a user that has participated
     * @param user: user address
     * @param cursor: cursor
     * @param size: size
     */
    function getUserRounds(
        address user,
        uint256 cursor,
        uint256 size
    )
        external
        view
        returns (
            uint256[] memory,
            BetInfo[] memory,
            uint256
        )
    {
        uint256 length = size;

        if (length > userRounds[user].epochs.length - cursor) {
            length = userRounds[user].epochs.length - cursor;
        }

        uint256[] memory values = new uint256[](length);
        BetInfo[] memory betInfo = new BetInfo[](length);

        for (uint256 i = 0; i < length; i++) {
            values[i] = userRounds[user].epochs[cursor + i];
            betInfo[i] = ledger[values[i]][user];
        }

        return (values, betInfo, cursor + length);
    }

    /**
     * @notice Returns round epochs length
     * @param user: user address
     */
    function getUserRoundsLength(address user) external view returns (uint256) {
        return userRounds[user].epochs.length;
    }
    
    function currentEpoch(uint256 asset) public view returns(uint256,uint256){
         Market memory mark = market[asset];
       return  _getCurrentEpochs(asset,mark.genesisStartTime,mark.initEpoch,mark.intervalSeconds);
       
    }
    function getRoundPeriod(uint256 asset,uint256 id) public view returns(uint256 startTimestamp, uint256 lockTimestamp,uint256 closeTimestamp){
        Market memory mark = market[asset];
       return  _getRoundPeriod(id,mark.genesisStartTime,mark.initEpoch,mark.intervalSeconds);
    }
    function _getCurrentEpochs(uint256 asset,uint256 startTime,uint256 initEpoch,uint256 duration) internal view returns(uint256 epoch,uint256 rpoch){
        //1+(current_time-init_time)/duration
        require(startTime > 0 && initEpoch >0,"ZE:STINIT");
    //unchecked {
        epoch =  initEpoch+(block.timestamp-startTime)/duration;
        //require(z >= x, "Your custom message here");
    //}
       
        rpoch = _getRoundIDByAssetEpoch(asset,epoch);

    }
    function _getRoundPeriod(uint256 epoch,uint256 startTime,uint256 initEpoch,uint256 duration) internal pure returns(uint256 startTimestamp, uint256 lockTimestamp,uint256 closeTimestamp){
        require(startTime > 0 && initEpoch >0,"ZE:STINIT");
        startTimestamp = (epoch-initEpoch)*duration+startTime;
        lockTimestamp = startTimestamp + duration;//Betting Period Ends
        closeTimestamp = startTimestamp + (2 * duration);
    }
    function _getRoundData(uint256 id) public pure returns(uint256 ri,uint256 m){
        ri = (id>>64);
        m = id & uint256(0xFFFFFFFFFFFFFFFF);
   
    }
    function _getRoundIDByAssetEpoch(uint256 asset,uint epoch) public pure returns(uint256 roundId) {
        roundId = uint256((uint256(epoch) << 64) | asset);
    }
    function getCurrentTVLExposed() public view  returns(uint256){
        return wLP.getMaxTVLExposed();
    }
    /**
     * @notice Get the claimable stats of specific epoch and user account
     * @param epoch: epoch
     * @param user: user address
    //  */
    // function claimable(uint256 epoch, address user) public view returns (bool) {
    //     BetInfo memory betInfo = ledger[epoch][user];
    //     Round memory round = rounds[epoch];
    //     if (betInfo.lockPrice == round.closePrice) {
    //         return false;
    //     }
    //     return
    //         round.oracleCalled &&
    //         betInfo.amount != 0 &&
    //         !betInfo.claimed &&
    //         ((round.closePrice > betInfo.lockPrice && betInfo.position == Position.Bull) ||
    //         (round.closePrice < betInfo.lockPrice && betInfo.position == Position.Bear));
    // }


    /**
     * @notice Get the refundable stats of specific epoch and user account
     * @param epoch: epoch
     * @param user: user address
     */
    // function refundable(uint256 epoch, address user) public view returns (bool) {
    //     BetInfo memory betInfo = ledger[epoch][user];
    //     Round memory round = rounds[epoch];
    //     (,uint256 asset)= _getRoundData(epoch);
    //     return
    //         !round.oracleCalled &&
    //         !betInfo.claimed &&
    //         block.timestamp > round.closeTimestamp + market[asset].bufferSeconds &&
    //         betInfo.amount != 0;
    // }

    /**
     * @notice Calculate rewards for round
     * @param epoch: epoch
     *
    function _calculateRewards(uint256 epoch) internal {
        require(rounds[epoch].rewardBaseCalAmount == 0 && rounds[epoch].rewardAmount == 0, "Rewards calculated");
        Round storage round = rounds[epoch];
        uint256 rewardBaseCalAmount;
        uint256 treasuryAmt;
        uint256 rewardAmount;

        // Bull wins
        if (round.closePrice > round.lockPrice) {
            rewardBaseCalAmount = round.bullAmount;
            treasuryAmt = (round.totalAmount * treasuryFee) / 10000;
            rewardAmount = round.totalAmount - treasuryAmt;
        }
        // Bear wins
        else if (round.closePrice < round.lockPrice) {
            rewardBaseCalAmount = round.bearAmount;
            treasuryAmt = (round.totalAmount * treasuryFee) / 10000;
            rewardAmount = round.totalAmount - treasuryAmt;
        }
        // House wins
        else {
            rewardBaseCalAmount = 0;
            rewardAmount = 0;
            treasuryAmt = round.totalAmount;
        }
        round.rewardBaseCalAmount = rewardBaseCalAmount;
        round.rewardAmount = rewardAmount;

        // Add to treasury
        treasuryAmount += treasuryAmt;

        emit RewardsCalculated(epoch, rewardBaseCalAmount, rewardAmount, treasuryAmt);
    }
    */

    /**
     * @notice Transfer BNB in a safe way
     * @param to: address to transfer BNB to
     * @param value: BNB amount to transfer (in wei)
     */
    function _safeTransferBNB(address to, uint256 value) internal {
        (bool success, ) = to.call{value: value}("");
        require(success, "TE:00");//"TransferHelper: BNB_TRANSFER_FAILED");
    }

    // function _distributeFee(uint256 fee) internal {
    //     //TO_DO where to distribute fee.
    //     fee =(fee*4200)/10000;
    //     //_safeTransferBNB(owner(), fee);
    // }

    /**
     * @notice Start round
     * Previous round n-2 must end
     * @param epoch: epoch
     */
    // function _startRound(uint256 epoch,uint256 intervalSeconds) internal {
    //     Round storage round = rounds[epoch];
    //     round.startTimestamp = block.timestamp;
    //     round.lockTimestamp = block.timestamp + intervalSeconds;//Betting Period Ends
    //     round.closeTimestamp = block.timestamp + (2 * intervalSeconds);
    //     round.epoch = epoch;
    //     round.totalAmount = 0;
    //     (round.maxTVLExposed,) = wLP.getMaxTVLExposed();

    //     emit StartRound(epoch,round.maxTVLExposed);
    // }

    /**
     * @notice Determine if a round is valid for receiving bets
     * Round must have started and locked
     * Current timestamp must be within startTimestamp and closeTimestamp
     */
    // function _bettable(uint256 epoch) internal view returns (bool) {
    //     return
    //         rounds[epoch].startTimestamp != 0 &&
    //         rounds[epoch].lockTimestamp != 0 &&
    //         block.timestamp > rounds[epoch].startTimestamp &&
    //         block.timestamp < rounds[epoch].lockTimestamp;
    // }

    /**
     * @notice Get latest recorded price from oracle
     * If it falls below allowed buffer or has not updated, it would be invalid.
     */
    // function _getPriceFromOracle(uint256 oracleUpdateAllowance,uint256 oracleLatestRoundId,AggregatorV3Interface oracle) internal view returns (uint80, int256) {
    //     uint256 leastAllowedTimestamp = block.timestamp + oracleUpdateAllowance;
    //     (uint80 roundId, int256 price, , uint256 timestamp, ) = oracle.latestRoundData();
    //     require(timestamp <= leastAllowedTimestamp,"OE:00");// "Oracle update exceeded max timestamp allowance");
    //     require(
    //         uint256(roundId) > oracleLatestRoundId,"OE:01"
    //         //"Oracle update roundId must be larger than oracleLatestRoundId"
    //     );
    //     return (roundId, price);
    // }
    /**
     *
     *
     */
    function _hashEntries(uint256 epoch,uint256 lev,int256 currentPrice,int256 lockPrice,Position position,address _address) public view  returns(bytes32){
   
        return _hashTypedDataV4(keccak256(abi.encode(ENTRY_CALL_HASH_TYPE,epoch,lev,currentPrice,lockPrice,position,_address)));
    }
    function _hashClaims(uint256 asset,uint256 round,uint256 amt,uint256 cp,address _address) public view  returns(bytes32){
        
       // return _hashTypedDataV4(keccak256(abi.encode(CLAIM_CALL_HASH_TYPE,start,end,amt,keccak256(abi.encodePacked(cp)),_address)));
       return _hashTypedDataV4(keccak256(abi.encode(CLAIM_CALL_HASH_TYPE,asset,round,amt,cp,_address)));
    }
    function _verify(bytes32 digest, bytes memory signature) public pure  returns(address){
        return ECDSA.recover(digest,signature);
    }
}