// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

// Internal references
import "./ThalesAMMLiquidityPoolRound.sol";

contract ThalesAMMLiquidityPoolRoundMastercopy is ThalesAMMLiquidityPoolRound {
    constructor() {
        // Freeze mastercopy on deployment so it can never be initialized with real arguments
        initialized = true;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol";

import "../../interfaces/IPositionalMarket.sol";

import "./ThalesAMMLiquidityPool.sol";

contract ThalesAMMLiquidityPoolRound {
    /* ========== LIBRARIES ========== */
    using SafeERC20Upgradeable for IERC20Upgradeable;

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

    ThalesAMMLiquidityPool public liquidityPool;
    IERC20Upgradeable public sUSD;

    uint public round;
    uint public roundStartTime;
    uint public roundEndTime;

    /* ========== CONSTRUCTOR ========== */

    bool public initialized;

    function initialize(
        address _liquidityPool,
        IERC20Upgradeable _sUSD,
        uint _round,
        uint _roundStartTime,
        uint _roundEndTime
    ) external {
        require(!initialized, "Already initialized");
        initialized = true;
        liquidityPool = ThalesAMMLiquidityPool(_liquidityPool);
        sUSD = _sUSD;
        round = _round;
        roundStartTime = _roundStartTime;
        roundEndTime = _roundEndTime;
        sUSD.approve(_liquidityPool, type(uint256).max);
    }

    function updateRoundTimes(uint _roundStartTime, uint _roundEndTime) external onlyLiquidityPool {
        roundStartTime = _roundStartTime;
        roundEndTime = _roundEndTime;
        emit RoundTimesUpdated(_roundStartTime, _roundEndTime);
    }

    function exerciseMarketReadyToExercised(IPositionalMarket market) external onlyLiquidityPool {
        if (market.resolved()) {
            (uint upBalance, uint downBalance) = market.balancesOf(address(this));
            if (upBalance > 0 || downBalance > 0) {
                market.exerciseOptions();
            }
        }
    }

    function moveOptions(
        IERC20Upgradeable option,
        uint optionsAmount,
        address destination
    ) external onlyLiquidityPool {
        option.safeTransfer(destination, optionsAmount);
    }

    modifier onlyLiquidityPool() {
        require(msg.sender == address(liquidityPool), "only the Pool manager may perform these methods");
        _;
    }

    event RoundTimesUpdated(uint _roundStartTime, uint _roundEndTime);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20Upgradeable.sol";
import "../../../utils/AddressUpgradeable.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20Upgradeable {
    using AddressUpgradeable for address;

    function safeTransfer(
        IERC20Upgradeable token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20Upgradeable 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(
        IERC20Upgradeable 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(
        IERC20Upgradeable 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(
        IERC20Upgradeable 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(IERC20Upgradeable token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.16;

import "../interfaces/IPositionalMarketManager.sol";
import "../interfaces/IPosition.sol";
import "../interfaces/IPriceFeed.sol";

interface IPositionalMarket {
    /* ========== TYPES ========== */

    enum Phase {
        Trading,
        Maturity,
        Expiry
    }
    enum Side {
        Up,
        Down
    }

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

    function getOptions() external view returns (IPosition up, IPosition down);

    function times() external view returns (uint maturity, uint destructino);

    function getOracleDetails()
        external
        view
        returns (
            bytes32 key,
            uint strikePrice,
            uint finalPrice
        );

    function fees() external view returns (uint poolFee, uint creatorFee);

    function deposited() external view returns (uint);

    function creator() external view returns (address);

    function resolved() external view returns (bool);

    function phase() external view returns (Phase);

    function oraclePrice() external view returns (uint);

    function oraclePriceAndTimestamp() external view returns (uint price, uint updatedAt);

    function canResolve() external view returns (bool);

    function result() external view returns (Side);

    function balancesOf(address account) external view returns (uint up, uint down);

    function totalSupplies() external view returns (uint up, uint down);

    function getMaximumBurnable(address account) external view returns (uint amount);

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

    function mint(uint value) external;

    function exerciseOptions() external returns (uint);

    function burnOptions(uint amount) external;

    function burnOptionsMaximum() external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "@openzeppelin/contracts-upgradeable/token/ERC20/utils/SafeERC20Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol";

import "../../utils/proxy/solidity-0.8.0/ProxyReentrancyGuard.sol";
import "../../utils/proxy/solidity-0.8.0/ProxyOwned.sol";
import "@openzeppelin/contracts-4.4.1/proxy/Clones.sol";

import "../../interfaces/IThalesAMM.sol";
import "../../interfaces/IPositionalMarket.sol";
import "../../interfaces/IStakingThales.sol";

import "./ThalesAMMLiquidityPoolRound.sol";

contract ThalesAMMLiquidityPool is Initializable, ProxyOwned, PausableUpgradeable, ProxyReentrancyGuard {
    /* ========== LIBRARIES ========== */
    using SafeERC20Upgradeable for IERC20Upgradeable;

    struct InitParams {
        address _owner;
        IThalesAMM _thalesAMM;
        IERC20Upgradeable _sUSD;
        uint _roundLength;
        uint _maxAllowedDeposit;
        uint _minDepositAmount;
        uint _maxAllowedUsers;
        bool _needsTransformingCollateral;
    }

    /* ========== CONSTANTS ========== */
    uint private constant HUNDRED = 1e20;
    uint private constant ONE = 1e18;
    uint private constant ONE_PERCENT = 1e16;

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

    IThalesAMM public thalesAMM;
    IERC20Upgradeable public sUSD;

    bool public started;

    uint public round;
    uint public roundLength;
    uint public firstRoundStartTime;

    mapping(uint => address) public roundPools;

    mapping(uint => address[]) public usersPerRound;
    mapping(uint => mapping(address => bool)) public userInRound;

    mapping(uint => mapping(address => uint)) public balancesPerRound;
    mapping(uint => uint) public allocationPerRound;

    mapping(address => bool) public withdrawalRequested;

    mapping(uint => address[]) public tradingMarketsPerRound;
    mapping(uint => mapping(address => bool)) public isTradingMarketInARound;

    mapping(uint => uint) public profitAndLossPerRound;
    mapping(uint => uint) public cumulativeProfitAndLoss;

    uint public maxAllowedDeposit;
    uint public minDepositAmount;
    uint public maxAllowedUsers;
    uint public usersCurrentlyInPool;

    address public defaultLiquidityProvider;

    IStakingThales public stakingThales;

    uint public stakedThalesMultiplier;

    address public poolRoundMastercopy;

    mapping(address => bool) public whitelistedDeposits;

    uint public totalDeposited;

    bool public onlyWhitelistedStakersAllowed;

    mapping(address => bool) public whitelistedStakers;

    bool public needsTransformingCollateral;

    mapping(uint => mapping(address => bool)) public marketAlreadyExercisedInRound;

    bool public roundClosingPrepared;

    uint public usersProcessedInRound;

    uint public marketsProcessedInRound;

    mapping(address => uint) public withdrawalShare;

    /* ========== CONSTRUCTOR ========== */

    function initialize(InitParams calldata params) external initializer {
        setOwner(params._owner);
        initNonReentrant();
        thalesAMM = IThalesAMM(params._thalesAMM);

        sUSD = params._sUSD;
        roundLength = params._roundLength;
        maxAllowedDeposit = params._maxAllowedDeposit;
        minDepositAmount = params._minDepositAmount;
        maxAllowedUsers = params._maxAllowedUsers;

        needsTransformingCollateral = params._needsTransformingCollateral;

        sUSD.approve(address(thalesAMM), type(uint256).max);
    }

    /// @notice Start pool and begin round #1
    function start() external onlyOwner {
        require(!started, "Liquidity pool has already started");
        require(allocationPerRound[1] > 0, "can not start with 0 deposits");

        firstRoundStartTime = block.timestamp;
        round = 1;

        address roundPool = _getOrCreateRoundPool(1);
        ThalesAMMLiquidityPoolRound(roundPool).updateRoundTimes(firstRoundStartTime, getRoundEndTime(1));

        started = true;
        emit PoolStarted();
    }

    /// @notice Deposit funds from user into pool for the next round
    /// @param amount Value to be deposited
    function deposit(uint amount) external canDeposit(amount) nonReentrant whenNotPaused roundClosingNotPrepared {
        uint nextRound = round + 1;
        address roundPool = _getOrCreateRoundPool(nextRound);
        sUSD.safeTransferFrom(msg.sender, roundPool, amount);

        if (!whitelistedDeposits[msg.sender]) {
            require(!onlyWhitelistedStakersAllowed || whitelistedStakers[msg.sender], "Only whitelisted stakers allowed");
            require(address(stakingThales) != address(0), "Staking Thales not set");
            require(
                (balancesPerRound[round][msg.sender] + amount + balancesPerRound[nextRound][msg.sender]) <=
                    _transformCollateral((stakingThales.stakedBalanceOf(msg.sender) * stakedThalesMultiplier) / ONE),
                "Not enough staked THALES"
            );
        }

        require(msg.sender != defaultLiquidityProvider, "Can't deposit directly as default liquidity provider");

        // new user enters the pool
        if (balancesPerRound[round][msg.sender] == 0 && balancesPerRound[nextRound][msg.sender] == 0) {
            require(usersCurrentlyInPool < maxAllowedUsers, "Max amount of users reached");
            usersPerRound[nextRound].push(msg.sender);
            userInRound[nextRound][msg.sender] = true;
            usersCurrentlyInPool = usersCurrentlyInPool + 1;
        }

        balancesPerRound[nextRound][msg.sender] += amount;

        allocationPerRound[nextRound] += amount;
        totalDeposited += amount;

        if (address(stakingThales) != address(0)) {
            stakingThales.updateVolume(msg.sender, amount);
        }

        emit Deposited(msg.sender, amount, round);
    }

    /// @notice get sUSD to mint for buy and store market as trading in the round
    /// @param market to trade
    /// @param amountToMint amount to get for mint
    function commitTrade(address market, uint amountToMint)
        external
        nonReentrant
        whenNotPaused
        onlyAMM
        roundClosingNotPrepared
    {
        require(started, "Pool has not started");
        require(amountToMint > 0, "Can't commit a zero trade");

        amountToMint = _transformCollateral(amountToMint);
        // add 1e-6 due to rounding issue, will be sent back to AMM at the end
        amountToMint = needsTransformingCollateral ? amountToMint + 1 : amountToMint;

        uint marketRound = getMarketRound(market);
        address liquidityPoolRound = _getOrCreateRoundPool(marketRound);

        if (marketRound == round) {
            sUSD.safeTransferFrom(liquidityPoolRound, address(thalesAMM), amountToMint);
        } else {
            uint poolBalance = sUSD.balanceOf(liquidityPoolRound);
            if (poolBalance >= amountToMint) {
                sUSD.safeTransferFrom(liquidityPoolRound, address(thalesAMM), amountToMint);
            } else {
                uint differenceToLPAsDefault = amountToMint - poolBalance;
                _depositAsDefault(differenceToLPAsDefault, liquidityPoolRound, marketRound);
                sUSD.safeTransferFrom(liquidityPoolRound, address(thalesAMM), amountToMint);
            }
        }

        if (!isTradingMarketInARound[marketRound][market]) {
            tradingMarketsPerRound[marketRound].push(market);
            isTradingMarketInARound[marketRound][market] = true;
        }
    }

    /// @notice get options that are in the LP into the AMM for the buy tx
    /// @param market to get options for
    /// @param optionsAmount to get options for
    /// @param position to get options for
    function getOptionsForBuy(
        address market,
        uint optionsAmount,
        IThalesAMM.Position position
    ) external nonReentrant whenNotPaused onlyAMM roundClosingNotPrepared {
        if (optionsAmount > 0) {
            require(started, "Pool has not started");

            uint marketRound = getMarketRound(market);
            address liquidityPoolRound = _getOrCreateRoundPool(marketRound);

            (IPosition up, IPosition down) = IPositionalMarket(market).getOptions();
            IPosition target = position == IThalesAMM.Position.Up ? up : down;

            ThalesAMMLiquidityPoolRound(liquidityPoolRound).moveOptions(
                IERC20Upgradeable(address(target)),
                optionsAmount,
                address(thalesAMM)
            );
        }
    }

    /// @notice get options that are in the LP into the AMM for the buy tx
    /// @param market to get options for
    /// @param optionsAmount to get options for
    /// @param position to get options for
    function getOptionsForBuyByAddress(
        address market,
        uint optionsAmount,
        address position
    ) external nonReentrant whenNotPaused onlyAMM roundClosingNotPrepared {
        if (optionsAmount > 0) {
            require(started, "Pool has not started");

            uint marketRound = getMarketRound(market);
            address liquidityPoolRound = _getOrCreateRoundPool(marketRound);

            ThalesAMMLiquidityPoolRound(liquidityPoolRound).moveOptions(
                IERC20Upgradeable(position),
                optionsAmount,
                address(thalesAMM)
            );
        }
    }

    /// @notice Create a round pool by market maturity date if it doesnt already exist
    /// @param market to use
    /// @return roundPool the pool for the passed market
    function getOrCreateMarketPool(address market)
        external
        onlyAMM
        nonReentrant
        whenNotPaused
        roundClosingNotPrepared
        returns (address roundPool)
    {
        uint marketRound = getMarketRound(market);
        roundPool = _getOrCreateRoundPool(marketRound);
    }

    /// @notice request withdrawal from the LP
    function withdrawalRequest() external nonReentrant canWithdraw whenNotPaused roundClosingNotPrepared {
        if (totalDeposited > balancesPerRound[round][msg.sender]) {
            totalDeposited -= balancesPerRound[round][msg.sender];
        } else {
            totalDeposited = 0;
        }

        usersCurrentlyInPool = usersCurrentlyInPool - 1;
        withdrawalRequested[msg.sender] = true;
        emit WithdrawalRequested(msg.sender);
    }

    /// @notice request partial withdrawal from the LP.
    /// @param share the percentage the user is wihdrawing from his total deposit
    function partialWithdrawalRequest(uint share) external nonReentrant canWithdraw whenNotPaused roundClosingNotPrepared {
        require(share >= ONE_PERCENT * 10 && share <= ONE_PERCENT * 90, "Share has to be between 10% and 90%");

        uint toWithdraw = (balancesPerRound[round][msg.sender] * share) / ONE;
        if (totalDeposited > toWithdraw) {
            totalDeposited -= toWithdraw;
        } else {
            totalDeposited = 0;
        }

        withdrawalRequested[msg.sender] = true;
        withdrawalShare[msg.sender] = share;
        emit WithdrawalRequested(msg.sender);
    }

    /// @notice Prepare round closing
    /// excercise options of trading markets and ensure there are no markets left unresolved
    function prepareRoundClosing() external nonReentrant whenNotPaused roundClosingNotPrepared {
        require(canCloseCurrentRound(), "Can't close current round");
        // excercise market options
        exerciseMarketsReadyToExercised();

        address roundPool = roundPools[round];
        // final balance is the final amount of sUSD in the round pool
        uint currentBalance = sUSD.balanceOf(roundPool);
        // calculate PnL

        // if no allocation for current round
        if (allocationPerRound[round] == 0) {
            profitAndLossPerRound[round] = 1;
        } else {
            profitAndLossPerRound[round] = (currentBalance * ONE) / allocationPerRound[round];
        }

        roundClosingPrepared = true;

        emit RoundClosingPrepared(round);
    }

    /// @notice Prepare round closing
    /// excercise options of trading markets and ensure there are no markets left unresolved
    function processRoundClosingBatch(uint batchSize) external nonReentrant whenNotPaused {
        require(roundClosingPrepared, "Round closing not prepared");
        require(usersProcessedInRound < usersPerRound[round].length, "All users already processed");
        require(batchSize > 0, "batchSize has to be greater than 0");

        address roundPool = roundPools[round];

        uint endCursor = usersProcessedInRound + batchSize;
        if (endCursor > usersPerRound[round].length) {
            endCursor = usersPerRound[round].length;
        }

        for (uint i = usersProcessedInRound; i < endCursor; i++) {
            address user = usersPerRound[round][i];
            uint balanceAfterCurRound = (balancesPerRound[round][user] * profitAndLossPerRound[round]) / ONE;
            if (!withdrawalRequested[user] && (profitAndLossPerRound[round] > 0)) {
                balancesPerRound[round + 1][user] = balancesPerRound[round + 1][user] + balanceAfterCurRound;
                usersPerRound[round + 1].push(user);
                if (address(stakingThales) != address(0)) {
                    stakingThales.updateVolume(user, balanceAfterCurRound);
                }
            } else {
                if (withdrawalShare[user] > 0) {
                    uint amountToClaim = (balanceAfterCurRound * withdrawalShare[user]) / ONE;
                    sUSD.safeTransferFrom(roundPool, user, amountToClaim);
                    emit Claimed(user, amountToClaim);
                    withdrawalRequested[user] = false;
                    withdrawalShare[user] = 0;
                    usersPerRound[round + 1].push(user);
                    balancesPerRound[round + 1][user] = balanceAfterCurRound - amountToClaim;
                } else {
                    balancesPerRound[round + 1][user] = 0;
                    sUSD.safeTransferFrom(roundPool, user, balanceAfterCurRound);
                    withdrawalRequested[user] = false;
                    emit Claimed(user, balanceAfterCurRound);
                }
            }
            usersProcessedInRound = usersProcessedInRound + 1;
        }

        emit RoundClosingBatchProcessed(round, batchSize);
    }

    /// @notice Close current round and begin next round,
    /// calculate profit and loss and process withdrawals
    function closeRound() external nonReentrant whenNotPaused {
        require(roundClosingPrepared, "Round closing not prepared");
        require(usersProcessedInRound == usersPerRound[round].length, "Not all users processed yet");
        // set for next round to false
        roundClosingPrepared = false;

        address roundPool = roundPools[round];

        //always claim for defaultLiquidityProvider
        if (balancesPerRound[round][defaultLiquidityProvider] > 0) {
            uint balanceAfterCurRound = (balancesPerRound[round][defaultLiquidityProvider] * profitAndLossPerRound[round]) /
                ONE;
            sUSD.safeTransferFrom(roundPool, defaultLiquidityProvider, balanceAfterCurRound);
            emit Claimed(defaultLiquidityProvider, balanceAfterCurRound);
        }

        if (round == 1) {
            cumulativeProfitAndLoss[round] = profitAndLossPerRound[round];
        } else {
            cumulativeProfitAndLoss[round] = (cumulativeProfitAndLoss[round - 1] * profitAndLossPerRound[round]) / ONE;
        }

        // start next round
        round += 1;

        //add all carried over sUSD
        allocationPerRound[round] += sUSD.balanceOf(roundPool);

        totalDeposited = allocationPerRound[round] - balancesPerRound[round][defaultLiquidityProvider];

        address roundPoolNewRound = _getOrCreateRoundPool(round);

        sUSD.safeTransferFrom(roundPool, roundPoolNewRound, sUSD.balanceOf(roundPool));

        usersProcessedInRound = 0;

        emit RoundClosed(round - 1, profitAndLossPerRound[round - 1]);
    }

    /// @notice Iterate all markets in the current round and exercise those ready to be exercised
    function exerciseMarketsReadyToExercised() public roundClosingNotPrepared {
        ThalesAMMLiquidityPoolRound poolRound = ThalesAMMLiquidityPoolRound(roundPools[round]);
        IPositionalMarket market;
        for (uint i = 0; i < tradingMarketsPerRound[round].length; i++) {
            address marketAddress = tradingMarketsPerRound[round][i];
            if (!marketAlreadyExercisedInRound[round][marketAddress]) {
                market = IPositionalMarket(marketAddress);
                if (market.resolved()) {
                    poolRound.exerciseMarketReadyToExercised(market);
                    marketAlreadyExercisedInRound[round][marketAddress] = true;
                }
            }
        }
    }

    /// @notice Exercises markets in a round
    /// @param batchSize number of markets to be processed
    function exerciseMarketsReadyToExercisedBatch(uint batchSize)
        external
        nonReentrant
        whenNotPaused
        roundClosingNotPrepared
    {
        require(batchSize > 0, "batchSize has to be greater than 0");

        ThalesAMMLiquidityPoolRound poolRound = ThalesAMMLiquidityPoolRound(roundPools[round]);
        uint count = 0;
        IPositionalMarket market;
        for (uint i = 0; i < tradingMarketsPerRound[round].length; i++) {
            if (count == batchSize) break;
            address marketAddress = tradingMarketsPerRound[round][i];
            if (!marketAlreadyExercisedInRound[round][marketAddress]) {
                market = IPositionalMarket(marketAddress);
                if (market.resolved()) {
                    poolRound.exerciseMarketReadyToExercised(market);
                    marketAlreadyExercisedInRound[round][marketAddress] = true;
                    count += 1;
                }
            }
        }
    }

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

    /// @notice whether the user is currently LPing
    /// @param user to check
    /// @return isUserInLP whether the user is currently LPing
    function isUserLPing(address user) external view returns (bool isUserInLP) {
        isUserInLP =
            (balancesPerRound[round][user] > 0 || balancesPerRound[round + 1][user] > 0) &&
            (!withdrawalRequested[user] || withdrawalShare[user] > 0);
    }

    /// @notice Return the maximum amount the user can deposit now
    /// @param user address to check
    /// @return maxDepositForUser the maximum amount the user can deposit in total including already deposited
    /// @return availableToDepositForUser the maximum amount the user can deposit now
    /// @return stakedThalesForUser how much THALES the user has staked
    function getMaxAvailableDepositForUser(address user)
        external
        view
        returns (
            uint maxDepositForUser,
            uint availableToDepositForUser,
            uint stakedThalesForUser
        )
    {
        uint nextRound = round + 1;
        stakedThalesForUser = stakingThales.stakedBalanceOf(user);
        maxDepositForUser = _transformCollateral((stakedThalesForUser * stakedThalesMultiplier) / ONE);
        availableToDepositForUser = maxDepositForUser > (balancesPerRound[round][user] + balancesPerRound[nextRound][user])
            ? (maxDepositForUser - balancesPerRound[round][user] - balancesPerRound[nextRound][user])
            : 0;
    }

    /// @notice Return how much the user needs to have staked to withdraw
    /// @param user address to check
    /// @return neededStaked how much the user needs to have staked to withdraw
    function getNeededStakedThalesToWithdrawForUser(address user) external view returns (uint neededStaked) {
        uint nextRound = round + 1;
        neededStaked =
            _reverseTransformCollateral((balancesPerRound[round][user] + balancesPerRound[nextRound][user]) * ONE) /
            stakedThalesMultiplier;
    }

    /// @notice get the pool address for the market
    /// @param market to check
    /// @return roundPool the pool address for the market
    function getMarketPool(address market) external view returns (address roundPool) {
        roundPool = roundPools[getMarketRound(market)];
    }

    /// @notice Checks if all conditions are met to close the round
    /// @return bool
    function canCloseCurrentRound() public view returns (bool) {
        if (!started || block.timestamp < getRoundEndTime(round)) {
            return false;
        }
        IPositionalMarket market;
        for (uint i = 0; i < tradingMarketsPerRound[round].length; i++) {
            address marketAddress = tradingMarketsPerRound[round][i];
            if (!marketAlreadyExercisedInRound[round][marketAddress]) {
                market = IPositionalMarket(marketAddress);
                if (!market.resolved()) {
                    return false;
                }
            }
        }
        return true;
    }

    /// @notice Iterate all markets in the current round and return true if at least one can be exercised
    function hasMarketsReadyToBeExercised() public view returns (bool) {
        ThalesAMMLiquidityPoolRound poolRound = ThalesAMMLiquidityPoolRound(roundPools[round]);
        IPositionalMarket market;
        for (uint i = 0; i < tradingMarketsPerRound[round].length; i++) {
            address marketAddress = tradingMarketsPerRound[round][i];
            if (!marketAlreadyExercisedInRound[round][marketAddress]) {
                market = IPositionalMarket(marketAddress);
                if (market.resolved()) {
                    (uint upBalance, uint downBalance) = market.balancesOf(address(poolRound));
                    if (upBalance > 0 || downBalance > 0) {
                        return true;
                    }
                }
            }
        }
        return false;
    }

    /// @notice Return multiplied PnLs between rounds
    /// @param roundA Round number from
    /// @param roundB Round number to
    /// @return uint
    function cumulativePnLBetweenRounds(uint roundA, uint roundB) public view returns (uint) {
        return (cumulativeProfitAndLoss[roundB] * profitAndLossPerRound[roundA]) / cumulativeProfitAndLoss[roundA];
    }

    /// @notice Return the start time of the passed round
    /// @param _round number
    /// @return uint the start time of the given round
    function getRoundStartTime(uint _round) public view returns (uint) {
        return firstRoundStartTime + (_round - 1) * roundLength;
    }

    /// @notice Return the end time of the passed round
    /// @param _round number
    /// @return uint the end time of the given round
    function getRoundEndTime(uint _round) public view returns (uint) {
        return firstRoundStartTime + _round * roundLength;
    }

    /// @notice Return the round to which a market belongs to
    /// @param market to get the round for
    /// @return _round the round which the market belongs to
    function getMarketRound(address market) public view returns (uint _round) {
        IPositionalMarket marketContract = IPositionalMarket(market);
        (uint maturity, ) = marketContract.times();
        if (maturity > firstRoundStartTime) {
            _round = (maturity - firstRoundStartTime) / roundLength + 1;
        } else {
            _round = 1;
        }
    }

    /* ========== INTERNAL FUNCTIONS ========== */

    function _transformCollateral(uint value) internal view returns (uint) {
        if (needsTransformingCollateral) {
            return value / 1e12;
        } else {
            return value;
        }
    }

    function _reverseTransformCollateral(uint value) internal view returns (uint) {
        if (needsTransformingCollateral) {
            return value * 1e12;
        } else {
            return value;
        }
    }

    function _depositAsDefault(
        uint amount,
        address roundPool,
        uint _round
    ) internal {
        require(defaultLiquidityProvider != address(0), "default liquidity provider not set");

        sUSD.safeTransferFrom(defaultLiquidityProvider, roundPool, amount);

        balancesPerRound[_round][defaultLiquidityProvider] += amount;
        allocationPerRound[_round] += amount;

        emit Deposited(defaultLiquidityProvider, amount, _round);
    }

    function _getOrCreateRoundPool(uint _round) internal returns (address roundPool) {
        roundPool = roundPools[_round];
        if (roundPool == address(0)) {
            require(poolRoundMastercopy != address(0), "Round pool mastercopy not set");
            ThalesAMMLiquidityPoolRound newRoundPool = ThalesAMMLiquidityPoolRound(Clones.clone(poolRoundMastercopy));
            newRoundPool.initialize(address(this), sUSD, _round, getRoundEndTime(_round - 1), getRoundEndTime(_round));
            roundPool = address(newRoundPool);
            roundPools[_round] = roundPool;
            emit RoundPoolCreated(_round, roundPool);
        }
    }

    /* ========== SETTERS ========== */

    function setPaused(bool _setPausing) external onlyOwner {
        _setPausing ? _pause() : _unpause();
    }

    /// @notice Set onlyWhitelistedStakersAllowed variable
    /// @param flagToSet self explanatory
    function setOnlyWhitelistedStakersAllowed(bool flagToSet) external onlyOwner {
        onlyWhitelistedStakersAllowed = flagToSet;
        emit SetOnlyWhitelistedStakersAllowed(flagToSet);
    }

    /// @notice Set _poolRoundMastercopy
    /// @param _poolRoundMastercopy to clone round pools from
    function setPoolRoundMastercopy(address _poolRoundMastercopy) external onlyOwner {
        require(_poolRoundMastercopy != address(0), "Can not set a zero address!");
        poolRoundMastercopy = _poolRoundMastercopy;
        emit PoolRoundMastercopyChanged(poolRoundMastercopy);
    }

    /// @notice Set _stakedThalesMultiplier
    /// @param _stakedThalesMultiplier the number of sUSD one can deposit per THALES staked
    function setStakedThalesMultiplier(uint _stakedThalesMultiplier) external onlyOwner {
        stakedThalesMultiplier = _stakedThalesMultiplier;
        emit StakedThalesMultiplierChanged(_stakedThalesMultiplier);
    }

    /// @notice Set IStakingThales contract
    /// @param _stakingThales IStakingThales address
    function setStakingThales(IStakingThales _stakingThales) external onlyOwner {
        stakingThales = _stakingThales;
        emit StakingThalesChanged(address(_stakingThales));
    }

    /// @notice Set max allowed deposit
    /// @param _maxAllowedDeposit Deposit value
    function setMaxAllowedDeposit(uint _maxAllowedDeposit) external onlyOwner {
        maxAllowedDeposit = _maxAllowedDeposit;
        emit MaxAllowedDepositChanged(_maxAllowedDeposit);
    }

    /// @notice Set min allowed deposit
    /// @param _minDepositAmount Deposit value
    function setMinAllowedDeposit(uint _minDepositAmount) external onlyOwner {
        minDepositAmount = _minDepositAmount;
        emit MinAllowedDepositChanged(_minDepositAmount);
    }

    /// @notice Set _maxAllowedUsers
    /// @param _maxAllowedUsers Deposit value
    function setMaxAllowedUsers(uint _maxAllowedUsers) external onlyOwner {
        maxAllowedUsers = _maxAllowedUsers;
        emit MaxAllowedUsersChanged(_maxAllowedUsers);
    }

    /// @notice Set ThalesAMM contract
    /// @param _thalesAMM ThalesAMM address
    function setThalesAmm(IThalesAMM _thalesAMM) external onlyOwner {
        require(address(_thalesAMM) != address(0), "Can not set a zero address!");
        thalesAMM = _thalesAMM;
        sUSD.approve(address(thalesAMM), type(uint256).max);
        emit ThalesAMMChanged(address(_thalesAMM));
    }

    /// @notice Set defaultLiquidityProvider wallet
    /// @param _defaultLiquidityProvider default liquidity provider
    function setDefaultLiquidityProvider(address _defaultLiquidityProvider) external onlyOwner {
        require(_defaultLiquidityProvider != address(0), "Can not set a zero address!");
        defaultLiquidityProvider = _defaultLiquidityProvider;
        emit DefaultLiquidityProviderChanged(_defaultLiquidityProvider);
    }

    /// @notice Set length of rounds
    /// @param _roundLength Length of a round in miliseconds
    function setRoundLength(uint _roundLength) external onlyOwner {
        require(!started, "Can't change round length after start");
        roundLength = _roundLength;
        emit RoundLengthChanged(_roundLength);
    }

    /// @notice set addresses which can deposit into the AMM bypassing the staking checks
    /// @param _whitelistedAddresses Addresses to set the whitelist flag for
    /// @param _flag to set
    function setWhitelistedAddresses(address[] calldata _whitelistedAddresses, bool _flag) external onlyOwner {
        require(_whitelistedAddresses.length > 0, "Whitelisted addresses cannot be empty");
        for (uint256 index = 0; index < _whitelistedAddresses.length; index++) {
            // only if current flag is different, if same skip it
            if (whitelistedDeposits[_whitelistedAddresses[index]] != _flag) {
                whitelistedDeposits[_whitelistedAddresses[index]] = _flag;
                emit AddedIntoWhitelist(_whitelistedAddresses[index], _flag);
            }
        }
    }

    /// @notice set addresses which can deposit into the AMM when only whitelisted stakers are allowed
    /// @param _whitelistedAddresses Addresses to set the whitelist flag for
    /// @param _flag to set
    function setWhitelistedStakerAddresses(address[] calldata _whitelistedAddresses, bool _flag) external onlyOwner {
        require(_whitelistedAddresses.length > 0, "Whitelisted addresses cannot be empty");
        for (uint256 index = 0; index < _whitelistedAddresses.length; index++) {
            // only if current flag is different, if same skip it
            if (whitelistedStakers[_whitelistedAddresses[index]] != _flag) {
                whitelistedStakers[_whitelistedAddresses[index]] = _flag;
                emit AddedIntoWhitelistStaker(_whitelistedAddresses[index], _flag);
            }
        }
    }

    /* ========== MODIFIERS ========== */

    modifier canDeposit(uint amount) {
        require(!withdrawalRequested[msg.sender], "Withdrawal is requested, cannot deposit");
        require(amount >= minDepositAmount, "Amount less than minDepositAmount");
        require(totalDeposited + amount <= maxAllowedDeposit, "Deposit amount exceeds AMM LP cap");
        _;
    }

    modifier canWithdraw() {
        require(started, "Pool has not started");
        require(!withdrawalRequested[msg.sender], "Withdrawal already requested");
        require(balancesPerRound[round][msg.sender] > 0, "Nothing to withdraw");
        require(balancesPerRound[round + 1][msg.sender] == 0, "Can't withdraw as you already deposited for next round");
        _;
    }

    modifier onlyAMM() {
        require(msg.sender == address(thalesAMM), "only the AMM may perform these methods");
        _;
    }

    modifier roundClosingNotPrepared() {
        require(!roundClosingPrepared, "Not allowed during roundClosingPrepared");
        _;
    }

    /* ========== EVENTS ========== */
    event PoolStarted();
    event Deposited(address user, uint amount, uint round);
    event WithdrawalRequested(address user);
    event RoundClosed(uint round, uint roundPnL);
    event Claimed(address user, uint amount);
    event RoundPoolCreated(uint _round, address roundPool);
    event PoolRoundMastercopyChanged(address newMastercopy);
    event StakedThalesMultiplierChanged(uint _stakedThalesMultiplier);
    event StakingThalesChanged(address stakingThales);
    event MaxAllowedDepositChanged(uint maxAllowedDeposit);
    event MinAllowedDepositChanged(uint minAllowedDeposit);
    event MaxAllowedUsersChanged(uint MaxAllowedUsersChanged);
    event ThalesAMMChanged(address thalesAMM);
    event DefaultLiquidityProviderChanged(address newProvider);
    event AddedIntoWhitelist(address _whitelistAddress, bool _flag);
    event AddedIntoWhitelistStaker(address _whitelistAddress, bool _flag);
    event RoundLengthChanged(uint roundLength);
    event SetOnlyWhitelistedStakersAllowed(bool flagToSet);
    event RoundClosingPrepared(uint round);
    event RoundClosingBatchProcessed(uint round, uint batchSize);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20Upgradeable {
    /**
     * @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: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @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 Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.16;

import "../interfaces/IPositionalMarket.sol";

interface IPositionalMarketManager {
    /* ========== VIEWS / VARIABLES ========== */

    function durations() external view returns (uint expiryDuration, uint maxTimeToMaturity);

    function capitalRequirement() external view returns (uint);

    function marketCreationEnabled() external view returns (bool);

    function onlyAMMMintingAndBurning() external view returns (bool);

    function transformCollateral(uint value) external view returns (uint);

    function reverseTransformCollateral(uint value) external view returns (uint);

    function totalDeposited() external view returns (uint);

    function numActiveMarkets() external view returns (uint);

    function activeMarkets(uint index, uint pageSize) external view returns (address[] memory);

    function numMaturedMarkets() external view returns (uint);

    function maturedMarkets(uint index, uint pageSize) external view returns (address[] memory);

    function isActiveMarket(address candidate) external view returns (bool);

    function isKnownMarket(address candidate) external view returns (bool);

    function getThalesAMM() external view returns (address);

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

    function createMarket(
        bytes32 oracleKey,
        uint strikePrice,
        uint maturity,
        uint initialMint // initial sUSD to mint options for,
    ) external returns (IPositionalMarket);

    function resolveMarket(address market) external;

    function expireMarkets(address[] calldata market) external;

    function transferSusdTo(
        address sender,
        address receiver,
        uint amount
    ) external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.16;

import "./IPositionalMarket.sol";

interface IPosition {
    /* ========== VIEWS / VARIABLES ========== */

    function getBalanceOf(address account) external view returns (uint);

    function getTotalSupply() external view returns (uint);

    function exerciseWithAmount(address claimant, uint amount) external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.16;

interface IPriceFeed {
    // Structs
    struct RateAndUpdatedTime {
        uint216 rate;
        uint40 time;
    }

    // Mutative functions
    function addAggregator(bytes32 currencyKey, address aggregatorAddress) external;

    function removeAggregator(bytes32 currencyKey) external;

    // Views

    function rateForCurrency(bytes32 currencyKey) external view returns (uint);

    function rateAndUpdatedTime(bytes32 currencyKey) external view returns (uint rate, uint time);

    function getRates() external view returns (uint[] memory);

    function getCurrencies() external view returns (bytes32[] memory);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    function __Ownable_init() internal onlyInitializing {
        __Context_init_unchained();
        __Ownable_init_unchained();
    }

    function __Ownable_init_unchained() internal onlyInitializing {
        _transferOwnership(_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 {
        _transferOwnership(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");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
    uint256[49] private __gap;
}

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

pragma solidity ^0.8.0;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since a proxied contract can't have a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To initialize the implementation contract, you can either invoke the
 * initializer manually, or you can include a constructor to automatically mark it as initialized when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() initializer {}
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     */
    bool private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Modifier to protect an initializer function from being invoked twice.
     */
    modifier initializer() {
        // If the contract is initializing we ignore whether _initialized is set in order to support multiple
        // inheritance patterns, but we only do this in the context of a constructor, because in other contexts the
        // contract may have been reentered.
        require(_initializing ? _isConstructor() : !_initialized, "Initializable: contract is already initialized");

        bool isTopLevelCall = !_initializing;
        if (isTopLevelCall) {
            _initializing = true;
            _initialized = true;
        }

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} modifier, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    function _isConstructor() private view returns (bool) {
        return !AddressUpgradeable.isContract(address(this));
    }
}

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

pragma solidity ^0.8.0;

import "../utils/ContextUpgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal onlyInitializing {
        __Context_init_unchained();
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal onlyInitializing {
        _paused = false;
    }

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

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

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

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the `nonReentrant` modifier
 * available, which can be aplied 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.
 */
contract ProxyReentrancyGuard {
    /// @dev counter to allow mutex lock with only one SSTORE operation
    uint256 private _guardCounter;
    bool private _initialized;

    function initNonReentrant() public {
        require(!_initialized, "Already initialized");
        _initialized = true;
        _guardCounter = 1;
    }

    /**
     * @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() {
        _guardCounter += 1;
        uint256 localCounter = _guardCounter;
        _;
        require(localCounter == _guardCounter, "ReentrancyGuard: reentrant call");
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

// Clone of syntetix contract without constructor
contract ProxyOwned {
    address public owner;
    address public nominatedOwner;
    bool private _initialized;
    bool private _transferredAtInit;

    function setOwner(address _owner) public {
        require(_owner != address(0), "Owner address cannot be 0");
        require(!_initialized, "Already initialized, use nominateNewOwner");
        _initialized = true;
        owner = _owner;
        emit OwnerChanged(address(0), _owner);
    }

    function nominateNewOwner(address _owner) external onlyOwner {
        nominatedOwner = _owner;
        emit OwnerNominated(_owner);
    }

    function acceptOwnership() external {
        require(msg.sender == nominatedOwner, "You must be nominated before you can accept ownership");
        emit OwnerChanged(owner, nominatedOwner);
        owner = nominatedOwner;
        nominatedOwner = address(0);
    }

    function transferOwnershipAtInit(address proxyAddress) external onlyOwner {
        require(proxyAddress != address(0), "Invalid address");
        require(!_transferredAtInit, "Already transferred");
        owner = proxyAddress;
        _transferredAtInit = true;
        emit OwnerChanged(owner, proxyAddress);
    }

    modifier onlyOwner {
        _onlyOwner();
        _;
    }

    function _onlyOwner() private view {
        require(msg.sender == owner, "Only the contract owner may perform this action");
    }

    event OwnerNominated(address newOwner);
    event OwnerChanged(address oldOwner, address newOwner);
}

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

pragma solidity ^0.8.0;

/**
 * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for
 * deploying minimal proxy contracts, also known as "clones".
 *
 * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies
 * > a minimal bytecode implementation that delegates all calls to a known, fixed address.
 *
 * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2`
 * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the
 * deterministic method.
 *
 * _Available since v3.4._
 */
library Clones {
    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
     *
     * This function uses the create opcode, which should never revert.
     */
    function clone(address implementation) internal returns (address instance) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
            mstore(add(ptr, 0x14), shl(0x60, implementation))
            mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
            instance := create(0, ptr, 0x37)
        }
        require(instance != address(0), "ERC1167: create failed");
    }

    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
     *
     * This function uses the create2 opcode and a `salt` to deterministically deploy
     * the clone. Using the same `implementation` and `salt` multiple time will revert, since
     * the clones cannot be deployed twice at the same address.
     */
    function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
            mstore(add(ptr, 0x14), shl(0x60, implementation))
            mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
            instance := create2(0, ptr, 0x37, salt)
        }
        require(instance != address(0), "ERC1167: create2 failed");
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(
        address implementation,
        bytes32 salt,
        address deployer
    ) internal pure returns (address predicted) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
            mstore(add(ptr, 0x14), shl(0x60, implementation))
            mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000)
            mstore(add(ptr, 0x38), shl(0x60, deployer))
            mstore(add(ptr, 0x4c), salt)
            mstore(add(ptr, 0x6c), keccak256(ptr, 0x37))
            predicted := keccak256(add(ptr, 0x37), 0x55)
        }
    }

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

// SPDX-License-Identifier: MIT
pragma solidity >=0.5.16;

import "./IPriceFeed.sol";

interface IThalesAMM {
    enum Position {
        Up,
        Down
    }

    function manager() external view returns (address);

    function availableToBuyFromAMM(address market, Position position) external view returns (uint);

    function impliedVolatilityPerAsset(bytes32 oracleKey) external view returns (uint);

    function buyFromAmmQuote(
        address market,
        Position position,
        uint amount
    ) external view returns (uint);

    function buyFromAMM(
        address market,
        Position position,
        uint amount,
        uint expectedPayout,
        uint additionalSlippage
    ) external returns (uint);

    function availableToSellToAMM(address market, Position position) external view returns (uint);

    function sellToAmmQuote(
        address market,
        Position position,
        uint amount
    ) external view returns (uint);

    function sellToAMM(
        address market,
        Position position,
        uint amount,
        uint expectedPayout,
        uint additionalSlippage
    ) external returns (uint);

    function isMarketInAMMTrading(address market) external view returns (bool);

    function price(address market, Position position) external view returns (uint);

    function buyPriceImpact(
        address market,
        Position position,
        uint amount
    ) external view returns (int);

    function priceFeed() external view returns (IPriceFeed);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.16;

interface IStakingThales {
    function updateVolume(address account, uint amount) external;

    /* ========== VIEWS / VARIABLES ==========  */
    function totalStakedAmount() external view returns (uint);

    function stakedBalanceOf(address account) external view returns (uint);

    function currentPeriodRewards() external view returns (uint);

    function currentPeriodFees() external view returns (uint);

    function getLastPeriodOfClaimedRewards(address account) external view returns (uint);

    function getRewardsAvailable(address account) external view returns (uint);

    function getRewardFeesAvailable(address account) external view returns (uint);

    function getAlreadyClaimedRewards(address account) external view returns (uint);

    function getContractRewardFunds() external view returns (uint);

    function getContractFeeFunds() external view returns (uint);

    function getAMMVolume(address account) external view returns (uint);
}

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

pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
        __Context_init_unchained();
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
    uint256[50] private __gap;
}

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

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