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// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "./interfaces/IStaking.sol";
import "../interfaces/ISalt.sol";
import "./StakingRewards.sol";
import "../pools/PoolUtils.sol";


// Staking SALT provides xSALT at a 1:1 ratio.
// Unstaking xSALT to reclaim SALT has a default unstake duration of 52 weeks and a minimum duration of two weeks.
// Expedited unstaking for two weeks allows a default 20% of the SALT to be reclaimed, while unstaking for a full year allows the full 100% to be reclaimed.

contract Staking is IStaking, StakingRewards
    {
	event SALTStaked(address indexed user, uint256 amountStaked);
	event UnstakeInitiated(address indexed user, uint256 indexed unstakeID, uint256 amountUnstaked, uint256 claimableSALT, uint256 numWeeks);
	event UnstakeCancelled(address indexed user, uint256 indexed unstakeID);
	event SALTRecovered(address indexed user, uint256 indexed unstakeID, uint256 saltRecovered, uint256 expeditedUnstakeFee);
	event XSALTTransferredFromAirdrop(address indexed toUser, uint256 amountTransferred);

	using SafeERC20 for ISalt;

	// The unstakeIDs for each user - including completed and cancelled unstakes.
	mapping(address => uint256[]) private _userUnstakeIDs;

	// Mapping of unstake IDs to their corresponding Unstake data.
    mapping(uint256=>Unstake) private _unstakesByID;
	uint256 public nextUnstakeID;


	constructor( IExchangeConfig _exchangeConfig, IPoolsConfig _poolsConfig, IStakingConfig _stakingConfig )
		StakingRewards( _exchangeConfig, _poolsConfig, _stakingConfig )
		{
		}


	// Stake a given amount of SALT and immediately receive the same amount of xSALT.
	// Requires exchange access for the sending wallet.
	function stakeSALT( uint256 amountToStake ) external nonReentrant
		{
		require( exchangeConfig.walletHasAccess(msg.sender), "Sender does not have exchange access" );

		// Increase the user's staking share so that they will receive more future SALT rewards.
		// No cooldown as it takes default 52 weeks to unstake the xSALT to receive the full amount of staked SALT back.
		_increaseUserShare( msg.sender, PoolUtils.STAKED_SALT, amountToStake, false );

		// Transfer the SALT from the user's wallet
		salt.safeTransferFrom( msg.sender, address(this), amountToStake );

		emit SALTStaked(msg.sender, amountToStake);
		}


	// Unstake a given amount of xSALT over a certain duration.
	// Unstaking immediately reduces the user's xSALT balance even though there will be the specified delay to convert it back to SALT
	// With a full unstake duration the user receives 100% of their staked amount.
	// With expedited unstaking the user receives less.
	function unstake( uint256 amountUnstaked, uint256 numWeeks ) external nonReentrant returns (uint256 unstakeID)
		{
		require( userShareForPool(msg.sender, PoolUtils.STAKED_SALT) >= amountUnstaked, "Cannot unstake more than the amount staked" );

		uint256 claimableSALT = calculateUnstake( amountUnstaked, numWeeks );
		uint256 completionTime = block.timestamp + numWeeks * ( 1 weeks );

		unstakeID = nextUnstakeID++;
		Unstake memory u = Unstake( UnstakeState.PENDING, msg.sender, amountUnstaked, claimableSALT, completionTime, unstakeID );

		_unstakesByID[unstakeID] = u;
		_userUnstakeIDs[msg.sender].push( unstakeID );

		// Decrease the user's staking share so that they will receive less future SALT rewards
		// This call will send any pending SALT rewards to msg.sender as well.
		// Note: _decreaseUserShare checks to make sure that the user has the specified staking share balance.
		_decreaseUserShare( msg.sender, PoolUtils.STAKED_SALT, amountUnstaked, false );

		emit UnstakeInitiated(msg.sender, unstakeID, amountUnstaked, claimableSALT, numWeeks);
		}


	// Cancel a pending unstake.
	// Caller will be able to use the xSALT again immediately
	function cancelUnstake( uint256 unstakeID ) external nonReentrant
		{
		Unstake storage u = _unstakesByID[unstakeID];

		require( u.status == UnstakeState.PENDING, "Only PENDING unstakes can be cancelled" );
		require( block.timestamp < u.completionTime, "Unstakes that have already completed cannot be cancelled" );
		require( msg.sender == u.wallet, "Sender is not the original staker" );

		// Update the user's share of the rewards for staked SALT
		_increaseUserShare( msg.sender, PoolUtils.STAKED_SALT, u.unstakedXSALT, false );

		u.status = UnstakeState.CANCELLED;
		emit UnstakeCancelled(msg.sender, unstakeID);
		}


	// Recover claimable SALT from a completed unstake
	function recoverSALT( uint256 unstakeID ) external nonReentrant
		{
		Unstake storage u = _unstakesByID[unstakeID];
		require( u.status == UnstakeState.PENDING, "Only PENDING unstakes can be claimed" );
		require( block.timestamp >= u.completionTime, "Unstake has not completed yet" );
		require( msg.sender == u.wallet, "Sender is not the original staker" );

		u.status = UnstakeState.CLAIMED;

		// See if the user unstaked early and received only a portion of their original stake.
		// The portion they did not receive will be considered the expeditedUnstakeFee.
		uint256 expeditedUnstakeFee = u.unstakedXSALT - u.claimableSALT;

		// Burn 100% of the expeditedUnstakeFee
		if ( expeditedUnstakeFee > 0 )
			{
			// Send the expeditedUnstakeFee to the SALT contract and burn it
			salt.safeTransfer( address(salt), expeditedUnstakeFee );
            salt.burnTokensInContract();
            }

		// Send the reclaimed SALT back to the user
		salt.safeTransfer( msg.sender, u.claimableSALT );

		emit SALTRecovered(msg.sender, unstakeID, u.claimableSALT, expeditedUnstakeFee);
		}


	// === VIEWS ===

	function userXSalt( address wallet ) external view returns (uint256)
		{
		return userShareForPool(wallet, PoolUtils.STAKED_SALT);
		}


	// Retrieve all unstakes associated with a user within a specific range.
	function unstakesForUser( address user, uint256 start, uint256 end ) public view returns (Unstake[] memory)
		{
        // Check if start and end are within the bounds of the array
        require(end >= start, "Invalid range: end cannot be less than start");

        uint256[] memory userUnstakes = _userUnstakeIDs[user];

        require(userUnstakes.length > end, "Invalid range: end is out of bounds");
        require(start < userUnstakes.length, "Invalid range: start is out of bounds");

        Unstake[] memory unstakes = new Unstake[](end - start + 1);

        uint256 index;
        for(uint256 i = start; i <= end; i++)
            unstakes[index++] = _unstakesByID[ userUnstakes[i]];

        return unstakes;
    }


	// Retrieve all unstakes associated with a user.
	function unstakesForUser( address user ) external view returns (Unstake[] memory)
		{
		// Check to see how many unstakes the user has
		uint256[] memory unstakeIDs = _userUnstakeIDs[user];
		if ( unstakeIDs.length == 0 )
			return new Unstake[](0);

		// Return them all
		return unstakesForUser( user, 0, unstakeIDs.length - 1 );
		}


	// Returns the unstakeIDs for the user
	function userUnstakeIDs( address user ) external view returns (uint256[] memory)
		{
		return _userUnstakeIDs[user];
		}


	function unstakeByID(uint256 id) external view returns (Unstake memory)
		{
		return _unstakesByID[id];
		}


	// Calculate the reclaimable amount of SALT based on the amount of unstaked xSALT and unstake duration
	// By default, unstaking for two weeks allows 20% of the SALT to be reclaimed, while unstaking for a full year allows the full 100% to be reclaimed.
	function calculateUnstake( uint256 unstakedXSALT, uint256 numWeeks ) public view returns (uint256)
		{
		uint256 minUnstakeWeeks = stakingConfig.minUnstakeWeeks();
        uint256 maxUnstakeWeeks = stakingConfig.maxUnstakeWeeks();
        uint256 minUnstakePercent = stakingConfig.minUnstakePercent();

		require( numWeeks >= minUnstakeWeeks, "Unstaking duration too short" );
		require( numWeeks <= maxUnstakeWeeks, "Unstaking duration too long" );

		uint256 percentAboveMinimum = 100 - minUnstakePercent;
		uint256 unstakeRange = maxUnstakeWeeks - minUnstakeWeeks;

		uint256 numerator = unstakedXSALT * ( minUnstakePercent * unstakeRange + percentAboveMinimum * ( numWeeks - minUnstakeWeeks ) );
    	return numerator / ( 100 * unstakeRange );
		}
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "./IStakingRewards.sol";


// Enum representing the possible states of an unstake request:
// NONE: The default state, indicating that no unstake request has been made.
// PENDING: The state indicating that an unstake request has been made, but has not yet completed.
// CANCELLED: The state indicating that a pending unstake request has been cancelled by the user.
// CLAIMED: The state indicating that a pending unstake request has been completed and the user can claim their SALT tokens.
enum UnstakeState { NONE, PENDING, CANCELLED, CLAIMED }

 struct Unstake
	{
	UnstakeState status;			// see above

	address wallet;					// the wallet of the user performing the unstake
	uint256 unstakedXSALT;		// the amount of xSALT that was unstaked
	uint256 claimableSALT;		// claimable SALT at completion time
	uint256 completionTime;	// the timestamp when the unstake completes
	uint256	unstakeID;			// the unstake ID
	}


interface IStaking is IStakingRewards
	{
	function stakeSALT( uint256 amountToStake ) external;
	function unstake( uint256 amountUnstaked, uint256 numWeeks ) external returns (uint256 unstakeID);
	function cancelUnstake( uint256 unstakeID ) external;
	function recoverSALT( uint256 unstakeID ) external;

	// Views
	function userXSalt( address wallet ) external view returns (uint256);
	function unstakesForUser( address wallet, uint256 start, uint256 end ) external view returns (Unstake[] calldata);
	function unstakesForUser( address wallet ) external view returns (Unstake[] calldata);
	function userUnstakeIDs( address user ) external view returns (uint256[] calldata);
	function unstakeByID(uint256 id) external view returns (Unstake calldata);
	function calculateUnstake( uint256 unstakedXSALT, uint256 numWeeks ) external view returns (uint256);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";


interface ISalt is IERC20
	{
	function burnTokensInContract() external;

	// Views
	function totalBurned() external view returns (uint256);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol";
import "openzeppelin-contracts/contracts/security/ReentrancyGuard.sol";
import "openzeppelin-contracts/contracts/utils/math/Math.sol";
import "../pools/interfaces/IPoolsConfig.sol";
import "../interfaces/IExchangeConfig.sol";
import "./interfaces/IStakingRewards.sol";
import "./interfaces/IStakingConfig.sol";
import "../interfaces/ISalt.sol";

// This contract allows users to receive rewards (as SALT tokens) for staking SALT or liquidity shares.
// A user's reward is proportional to their share of the stake and is based on their share at the time that rewards are added.
//
// What staked shares represent is specific to the contracts that derive from StakingRewards.
//
// 1. Staking.sol: shares represent the amount of SALT staked (staked to the STAKED_SALT pool)
// 2. Liquidity.sol: shares represent the amount of liquidity deposited and staked to specific pools
//
// Regarding virtualRewards: the idea is that the ratio of totalRewards/totalShare before the user increases share needs to equal (totalRewards+virtualRewards)/(totalShare+shareIncrease).
// Namely that the ratio of rewards to shares before and after needs to remain the same. It's akin to a liquidity pool where the two tokens are "rewards" and "shares". When a user want add shares they borrow the rewards needed to create the correct proportion of virtualRewards / addedShares.
// When rewards are added, it increases the value of the shares, in terms of the rewards.
// On claim, users pay back any "borrowed" rewards (the virtual rewards).

abstract contract StakingRewards is IStakingRewards, ReentrancyGuard
    {
	event UserShareIncreased(address indexed wallet, bytes32 indexed poolID, uint256 amountIncreased);
	event UserShareDecreased(address indexed wallet, bytes32 indexed poolID, uint256 amountDecreased, uint256 claimedRewards);
	event RewardsClaimed(address indexed wallet, uint256 claimedRewards);
	event SaltRewardsAdded(bytes32 indexed poolID, uint256 amountAdded);

	using SafeERC20 for ISalt;

	ISalt immutable public salt;
	IExchangeConfig immutable public exchangeConfig;
    IStakingConfig immutable public stakingConfig;
    IPoolsConfig immutable public poolsConfig;

	// A nested mapping that stores the UserShareInfo data for each user and each poolID.
	mapping(address=>mapping(bytes32=>UserShareInfo)) private _userShareInfo;

    // A mapping that stores the total pending SALT rewards for each poolID.
    mapping(bytes32=>uint256) public totalRewards;

    // A mapping that stores the total shares for each poolID.
    mapping(bytes32=>uint256) public totalShares;


	// Constructs a new StakingRewards contract with providing configs
 	constructor( IExchangeConfig _exchangeConfig, IPoolsConfig _poolsConfig, IStakingConfig _stakingConfig )
		{
		exchangeConfig = _exchangeConfig;
    	poolsConfig = _poolsConfig;
		stakingConfig = _stakingConfig;

		salt = _exchangeConfig.salt(); // cached for efficiency
        }


	// Increase a user's share for the given whitelisted pool.
	function _increaseUserShare( address wallet, bytes32 poolID, uint256 increaseShareAmount, bool useCooldown ) internal
		{
		require( poolsConfig.isWhitelisted( poolID ), "Invalid pool" );
		require( increaseShareAmount != 0, "Cannot increase zero share" );

		UserShareInfo storage user = _userShareInfo[wallet][poolID];

		if ( useCooldown )
		if ( msg.sender != address(exchangeConfig.dao()) ) // DAO doesn't use the cooldown
			{
			require( block.timestamp >= user.cooldownExpiration, "Must wait for the cooldown to expire" );

			// Update the cooldown expiration for future transactions
			user.cooldownExpiration = block.timestamp + stakingConfig.modificationCooldown();
			}

		uint256 existingTotalShares = totalShares[poolID];

		// Determine the amount of virtualRewards to add based on the current ratio of rewards/shares.
		// The ratio of virtualRewards/increaseShareAmount is the same as totalRewards/totalShares for the pool.
		// The virtual rewards will be deducted later when calculating the user's owed rewards.
        if ( existingTotalShares != 0 ) // prevent / 0
        	{
			// Round up in favor of the protocol.
			uint256 virtualRewardsToAdd = Math.ceilDiv( totalRewards[poolID] * increaseShareAmount, existingTotalShares );

			user.virtualRewards += virtualRewardsToAdd;
	        totalRewards[poolID] += virtualRewardsToAdd;
	        }

		// Update the deposit balances
		user.userShare += increaseShareAmount;
		totalShares[poolID] = existingTotalShares + increaseShareAmount;

		emit UserShareIncreased(wallet, poolID, increaseShareAmount);
		}


	// Decrease a user's share for the pool and have any pending rewards sent to them.
	// Does not require the pool to be valid (in case the pool was recently unwhitelisted).
	function _decreaseUserShare( address wallet, bytes32 poolID, uint256 decreaseShareAmount, bool useCooldown ) internal
		{
		require( decreaseShareAmount != 0, "Cannot decrease zero share" );

		UserShareInfo storage user = _userShareInfo[wallet][poolID];
		require( decreaseShareAmount <= user.userShare, "Cannot decrease more than existing user share" );

		if ( useCooldown )
		if ( msg.sender != address(exchangeConfig.dao()) ) // DAO doesn't use the cooldown
			{
			require( block.timestamp >= user.cooldownExpiration, "Must wait for the cooldown to expire" );

			// Update the cooldown expiration for future transactions
			user.cooldownExpiration = block.timestamp + stakingConfig.modificationCooldown();
			}

		// Determine the share of the rewards for the amountToDecrease (will include previously added virtual rewards)
		uint256 rewardsForAmount = ( totalRewards[poolID] * decreaseShareAmount ) / totalShares[poolID];

		// For the amountToDecrease determine the proportion of virtualRewards (proportional to all virtualRewards for the user)

		// Round virtualRewardsToRemoveFromClaimable up in favor of the protocol
		uint256 virtualRewardsToRemoveFromClaimable = Math.ceilDiv(user.virtualRewards * decreaseShareAmount,  user.userShare );

		// Round virtualRewardsToRemoveFromUserVirtRewards down in favor of the protocol
		uint256 virtualRewardsToRemoveFromUserVirtRewards = (user.virtualRewards * decreaseShareAmount) / user.userShare;

		// Update totals
		totalRewards[poolID] -= rewardsForAmount;
		totalShares[poolID] -= decreaseShareAmount;

		// Update the user's share and virtual rewards
		user.userShare -= decreaseShareAmount;
		user.virtualRewards -= virtualRewardsToRemoveFromUserVirtRewards;

		uint256 claimableRewards = 0;

		// Some of the rewardsForAmount are actually virtualRewards and can't be claimed.

		// In the event that virtualRewardsToRemoveFromClaimable are greater than actual rewards - claimableRewards will stay zero.
		if ( virtualRewardsToRemoveFromClaimable < rewardsForAmount )
			claimableRewards = rewardsForAmount - virtualRewardsToRemoveFromClaimable;

		// Send the claimable rewards
		if ( claimableRewards != 0 )
			salt.safeTransfer( wallet, claimableRewards );

		emit UserShareDecreased(wallet, poolID, decreaseShareAmount, claimableRewards);
		}


	// ===== PUBLIC FUNCTIONS =====

	// Claim all available SALT rewards from multiple pools for the user.
	// The claimed rewards are added to the user's virtual rewards balance - so that they can't be claimed again later.
     function claimAllRewards( bytes32[] calldata poolIDs ) external nonReentrant returns (uint256 claimableRewards)
    	{
		mapping(bytes32=>UserShareInfo) storage userInfo = _userShareInfo[msg.sender];

		claimableRewards = 0;
		for( uint256 i = 0; i < poolIDs.length; i++ )
			{
			bytes32 poolID = poolIDs[i];

			uint256 pendingRewards = userRewardForPool( msg.sender, poolID );

			// Increase the virtualRewards balance for the user to account for them receiving the rewards without withdrawing
			userInfo[poolID].virtualRewards += pendingRewards;

			claimableRewards += pendingRewards;
			}

		if ( claimableRewards > 0 )
			{
			// Send the actual rewards
			salt.safeTransfer( msg.sender, claimableRewards );

			emit RewardsClaimed(msg.sender, claimableRewards);
			}
    	}


	// Adds SALT rewards for specific whitelisted pools.
	// There is some risk of addSALTRewards being frontrun to hunt rewards, but there are multiple mechanisms in place to prevent this from being effective.
	// 1. There is a cooldown period of default one hour before shares can be withdrawn once deposited.
	// 2. Staked SALT has a default unstake period of 52 weeks.
	// 3. Rewards are first placed into a RewardsEmitter which deposits rewards via addSALTRewards at the default rate of 1% per day.
	// 4. Rewards are deposited fairly often, with outstanding rewards being transferred with a frequency proportional to the activity of the exchange.
	// Example: if $100k rewards were being deposited in a bulk transaction, it would only equate to $1000 (1%) the first day,
	// or $10 in claimable rewards during a 15 minute upkeep period.
 	function addSALTRewards( AddedReward[] calldata addedRewards ) external nonReentrant
		{
		uint256 sum = 0;
		for( uint256 i = 0; i < addedRewards.length; i++ )
			{
			AddedReward memory addedReward = addedRewards[i];

			bytes32 poolID = addedReward.poolID;
			require( poolsConfig.isWhitelisted( poolID ), "Invalid pool" );

			uint256 amountToAdd = addedReward.amountToAdd;

			totalRewards[ poolID ] += amountToAdd;
			sum = sum + amountToAdd;

			emit SaltRewardsAdded(poolID, amountToAdd);
			}

		// Transfer in the SALT for all the specified rewards
		if ( sum > 0 )
			{
			// Transfer the SALT rewards from the sender
			salt.safeTransferFrom( msg.sender, address(this), sum );
			}
		}


	// === VIEWS ===

	// Returns the total shares for specified pools.
	function totalSharesForPools( bytes32[] calldata poolIDs ) external view returns (uint256[] memory shares)
		{
		shares = new uint256[]( poolIDs.length );

		for( uint256 i = 0; i < shares.length; i++ )
			shares[i] = totalShares[ poolIDs[i] ];
		}


	// Returns the total rewards for specified pools.
	function totalRewardsForPools( bytes32[] calldata poolIDs ) external view returns (uint256[] memory rewards)
		{
		rewards = new uint256[]( poolIDs.length );

		for( uint256 i = 0; i < rewards.length; i++ )
			rewards[i] = totalRewards[ poolIDs[i] ];
		}


	// Returns the user's pending rewards for a specified pool.
	function userRewardForPool( address wallet, bytes32 poolID ) public view returns (uint256)
		{
		// If there are no shares for the pool, the user can't have any shares either and there can't be any rewards
		if ( totalShares[poolID] == 0 )
			return 0;

		UserShareInfo memory user = _userShareInfo[wallet][poolID];
		if ( user.userShare == 0 )
			return 0;

		// Determine the share of the rewards for the user based on their deposited share
		uint256 rewardsShare = ( totalRewards[poolID] * user.userShare ) / totalShares[poolID];

		// Reduce by the virtualRewards - as they were only added to keep the share / rewards ratio the same when the used added their share

		// In the event that virtualRewards exceeds rewardsShare due to precision loss - just return zero
		if ( user.virtualRewards > rewardsShare )
			return 0;

		return rewardsShare - user.virtualRewards;
		}


	// Returns the user's pending rewards for specified pools.
	function userRewardsForPools( address wallet, bytes32[] calldata poolIDs ) external view returns (uint256[] memory rewards)
		{
		rewards = new uint256[]( poolIDs.length );

		for( uint256 i = 0; i < rewards.length; i++ )
			rewards[i] = userRewardForPool( wallet, poolIDs[i] );
		}


	// Get the user's shares for a specified pool.
	function userShareForPool( address wallet, bytes32 poolID ) public view returns (uint256)
		{
		return _userShareInfo[wallet][poolID].userShare;
		}


	// Get the user's shares for specified pools.
	function userShareForPools( address wallet, bytes32[] calldata poolIDs ) external view returns (uint256[] memory shares)
		{
		shares = new uint256[]( poolIDs.length );

		for( uint256 i = 0; i < shares.length; i++ )
			shares[i] = _userShareInfo[wallet][ poolIDs[i] ].userShare;
		}


	// Get the user's virtual rewards for a specified pool.
	function userVirtualRewardsForPool( address wallet, bytes32 poolID ) public view returns (uint256)
		{
		return _userShareInfo[wallet][poolID].virtualRewards;
		}


	// Get the cooldown time remaining for the user for specified pools.
	function userCooldowns( address wallet, bytes32[] calldata poolIDs ) external view returns (uint256[] memory cooldowns)
		{
		cooldowns = new uint256[]( poolIDs.length );

		mapping(bytes32=>UserShareInfo) storage userInfo = _userShareInfo[wallet];

		for( uint256 i = 0; i < cooldowns.length; i++ )
			{
			uint256 cooldownExpiration = userInfo[ poolIDs[i] ].cooldownExpiration;

			if ( block.timestamp >= cooldownExpiration )
				cooldowns[i] = 0;
			else
				cooldowns[i] = cooldownExpiration - block.timestamp;
			}
		}
	}

pragma solidity =0.8.22;

import "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";


library PoolUtils
	{
	// Token reserves less than dust are treated as if they don't exist at all.
	// With the 18 decimals that are used for most tokens, DUST has a value of 0.0000000000000001
	uint256 constant public DUST = 100;

	// A special pool that represents staked SALT that is not associated with any actual liquidity pool.
    bytes32 constant public STAKED_SALT = bytes32(0);


    // Return the unique poolID for the given two tokens.
    // Tokens are sorted before being hashed to make reversed pairs equivalent.
    function _poolID( IERC20 tokenA, IERC20 tokenB ) internal pure returns (bytes32 poolID)
    	{
        // See if the token orders are flipped
        if ( uint160(address(tokenB)) < uint160(address(tokenA)) )
            return keccak256(abi.encodePacked(address(tokenB), address(tokenA)));

        return keccak256(abi.encodePacked(address(tokenA), address(tokenB)));
    	}


    // Return the unique poolID and whether or not it is flipped
    function _poolIDAndFlipped( IERC20 tokenA, IERC20 tokenB ) internal pure returns (bytes32 poolID, bool flipped)
    	{
        // See if the token orders are flipped
        if ( uint160(address(tokenB)) < uint160(address(tokenA)) )
            return (keccak256(abi.encodePacked(address(tokenB), address(tokenA))), true);

        return (keccak256(abi.encodePacked(address(tokenA), address(tokenB))), false);
    	}
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;


struct AddedReward
	{
	bytes32 poolID;							// The pool to add rewards to
	uint256 amountToAdd;				// The amount of rewards (as SALT) to add
	}

struct UserShareInfo
	{
	uint256 userShare;					// A user's share for a given poolID
	uint256 virtualRewards;				// The amount of rewards that were added to maintain proper rewards/share ratio - and will be deducted from a user's pending rewards.
	uint256 cooldownExpiration;		// The timestamp when the user can modify their share
	}


interface IStakingRewards
	{
	function claimAllRewards( bytes32[] calldata poolIDs ) external returns (uint256 rewardsAmount);
	function addSALTRewards( AddedReward[] calldata addedRewards ) external;

	// Views
	function totalShares(bytes32 poolID) external view returns (uint256);
	function totalSharesForPools( bytes32[] calldata poolIDs ) external view returns (uint256[] calldata shares);
	function totalRewardsForPools( bytes32[] calldata poolIDs ) external view returns (uint256[] calldata rewards);

	function userRewardForPool( address wallet, bytes32 poolID ) external view returns (uint256);
	function userShareForPool( address wallet, bytes32 poolID ) external view returns (uint256);
	function userVirtualRewardsForPool( address wallet, bytes32 poolID ) external view returns (uint256);

	function userRewardsForPools( address wallet, bytes32[] calldata poolIDs ) external view returns (uint256[] calldata rewards);
	function userShareForPools( address wallet, bytes32[] calldata poolIDs ) external view returns (uint256[] calldata shares);
	function userCooldowns( address wallet, bytes32[] calldata poolIDs ) external view returns (uint256[] calldata cooldowns);
	}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

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

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

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    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));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    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");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

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

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

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // 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 cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

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

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// 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);
        }
    }
}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
import "./IPools.sol";


interface IPoolsConfig
	{
	function whitelistPool( IERC20 tokenA, IERC20 tokenB ) external; // onlyOwner
	function unwhitelistPool( IERC20 tokenA, IERC20 tokenB ) external; // onlyOwner
	function changeMaximumWhitelistedPools(bool increase) external; // onlyOwner

	// Views
    function maximumWhitelistedPools() external view returns (uint256);

	function numberOfWhitelistedPools() external view returns (uint256);
	function isWhitelisted( bytes32 poolID ) external view returns (bool);
	function whitelistedPools() external view returns (bytes32[] calldata);
	function underlyingTokenPair( bytes32 poolID ) external view returns (IERC20 tokenA, IERC20 tokenB);

	// Returns true if the token has been whitelisted (meaning it has been pooled with either WETH and USDC)
	function tokenHasBeenWhitelisted( IERC20 token, IERC20 weth, IERC20 usdc ) external view returns (bool);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "openzeppelin-contracts/contracts/finance/VestingWallet.sol";
import "../staking/interfaces/ILiquidity.sol";
import "../launch/interfaces/IInitialDistribution.sol";
import "../rewards/interfaces/IRewardsEmitter.sol";
import "../rewards/interfaces/ISaltRewards.sol";
import "../rewards/interfaces/IEmissions.sol";
import "../interfaces/IAccessManager.sol";
import "../launch/interfaces/IAirdrop.sol";
import "../dao/interfaces/IDAO.sol";
import "../interfaces/ISalt.sol";
import "./IUpkeep.sol";


interface IExchangeConfig
	{
	function setContracts( IDAO _dao, IUpkeep _upkeep, IInitialDistribution _initialDistribution, VestingWallet _teamVestingWallet, VestingWallet _daoVestingWallet ) external; // onlyOwner
	function setAccessManager( IAccessManager _accessManager ) external; // onlyOwner

	// Views
	function salt() external view returns (ISalt);
	function wbtc() external view returns (IERC20);
	function weth() external view returns (IERC20);
	function usdc() external view returns (IERC20);
	function usdt() external view returns (IERC20);

	function daoVestingWallet() external view returns (VestingWallet);
    function teamVestingWallet() external view returns (VestingWallet);
    function initialDistribution() external view returns (IInitialDistribution);

	function accessManager() external view returns (IAccessManager);
	function dao() external view returns (IDAO);
	function upkeep() external view returns (IUpkeep);
	function teamWallet() external view returns (address);

	function walletHasAccess( address wallet ) external view returns (bool);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;


interface IStakingConfig
	{
	function changeMinUnstakeWeeks(bool increase) external; // onlyOwner
	function changeMaxUnstakeWeeks(bool increase) external; // onlyOwner
	function changeMinUnstakePercent(bool increase) external; // onlyOwner
	function changeModificationCooldown(bool increase) external; // onlyOwner

	// Views
    function minUnstakeWeeks() external view returns (uint256);
    function maxUnstakeWeeks() external view returns (uint256);
    function minUnstakePercent() external view returns (uint256);
    function modificationCooldown() external view returns (uint256);
	}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/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/v0.8.0/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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "../../staking/interfaces/ILiquidity.sol";
import "../../dao/interfaces/IDAO.sol";
import "./IPoolStats.sol";


interface IPools is IPoolStats
	{
	function startExchangeApproved() external;
	function setContracts( IDAO _dao, ILiquidity _liquidity ) external; // onlyOwner

	function addLiquidity( IERC20 tokenA, IERC20 tokenB, uint256 maxAmountA, uint256 maxAmountB, uint256 minAddedAmountA, uint256 minAddedAmountB, uint256 totalLiquidity ) external returns (uint256 addedAmountA, uint256 addedAmountB, uint256 addedLiquidity);
	function removeLiquidity( IERC20 tokenA, IERC20 tokenB, uint256 liquidityToRemove, uint256 minReclaimedA, uint256 minReclaimedB, uint256 totalLiquidity ) external returns (uint256 reclaimedA, uint256 reclaimedB);

	function deposit( IERC20 token, uint256 amount ) external;
	function withdraw( IERC20 token, uint256 amount ) external;
	function swap( IERC20 swapTokenIn, IERC20 swapTokenOut, uint256 swapAmountIn, uint256 minAmountOut, uint256 deadline ) external returns (uint256 swapAmountOut);
	function depositSwapWithdraw(IERC20 swapTokenIn, IERC20 swapTokenOut, uint256 swapAmountIn, uint256 minAmountOut, uint256 deadline ) external returns (uint256 swapAmountOut);
	function depositDoubleSwapWithdraw( IERC20 swapTokenIn, IERC20 swapTokenMiddle, IERC20 swapTokenOut, uint256 swapAmountIn, uint256 minAmountOut, uint256 deadline ) external returns (uint256 swapAmountOut);
	function depositZapSwapWithdraw(IERC20 swapTokenIn, IERC20 swapTokenOut, uint256 swapAmountIn ) external returns (uint256 swapAmountOut);

	// Views
	function exchangeIsLive() external view returns (bool);
	function getPoolReserves(IERC20 tokenA, IERC20 tokenB) external view returns (uint256 reserveA, uint256 reserveB);
	function depositedUserBalance(address user, IERC20 token) external view returns (uint256);
	}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (finance/VestingWallet.sol)
pragma solidity ^0.8.0;

import "../token/ERC20/utils/SafeERC20.sol";
import "../utils/Address.sol";
import "../utils/Context.sol";

/**
 * @title VestingWallet
 * @dev This contract handles the vesting of Eth and ERC20 tokens for a given beneficiary. Custody of multiple tokens
 * can be given to this contract, which will release the token to the beneficiary following a given vesting schedule.
 * The vesting schedule is customizable through the {vestedAmount} function.
 *
 * Any token transferred to this contract will follow the vesting schedule as if they were locked from the beginning.
 * Consequently, if the vesting has already started, any amount of tokens sent to this contract will (at least partly)
 * be immediately releasable.
 */
contract VestingWallet is Context {
    event EtherReleased(uint256 amount);
    event ERC20Released(address indexed token, uint256 amount);

    uint256 private _released;
    mapping(address => uint256) private _erc20Released;
    address private immutable _beneficiary;
    uint64 private immutable _start;
    uint64 private immutable _duration;

    /**
     * @dev Set the beneficiary, start timestamp and vesting duration of the vesting wallet.
     */
    constructor(address beneficiaryAddress, uint64 startTimestamp, uint64 durationSeconds) payable {
        require(beneficiaryAddress != address(0), "VestingWallet: beneficiary is zero address");
        _beneficiary = beneficiaryAddress;
        _start = startTimestamp;
        _duration = durationSeconds;
    }

    /**
     * @dev The contract should be able to receive Eth.
     */
    receive() external payable virtual {}

    /**
     * @dev Getter for the beneficiary address.
     */
    function beneficiary() public view virtual returns (address) {
        return _beneficiary;
    }

    /**
     * @dev Getter for the start timestamp.
     */
    function start() public view virtual returns (uint256) {
        return _start;
    }

    /**
     * @dev Getter for the vesting duration.
     */
    function duration() public view virtual returns (uint256) {
        return _duration;
    }

    /**
     * @dev Amount of eth already released
     */
    function released() public view virtual returns (uint256) {
        return _released;
    }

    /**
     * @dev Amount of token already released
     */
    function released(address token) public view virtual returns (uint256) {
        return _erc20Released[token];
    }

    /**
     * @dev Getter for the amount of releasable eth.
     */
    function releasable() public view virtual returns (uint256) {
        return vestedAmount(uint64(block.timestamp)) - released();
    }

    /**
     * @dev Getter for the amount of releasable `token` tokens. `token` should be the address of an
     * IERC20 contract.
     */
    function releasable(address token) public view virtual returns (uint256) {
        return vestedAmount(token, uint64(block.timestamp)) - released(token);
    }

    /**
     * @dev Release the native token (ether) that have already vested.
     *
     * Emits a {EtherReleased} event.
     */
    function release() public virtual {
        uint256 amount = releasable();
        _released += amount;
        emit EtherReleased(amount);
        Address.sendValue(payable(beneficiary()), amount);
    }

    /**
     * @dev Release the tokens that have already vested.
     *
     * Emits a {ERC20Released} event.
     */
    function release(address token) public virtual {
        uint256 amount = releasable(token);
        _erc20Released[token] += amount;
        emit ERC20Released(token, amount);
        SafeERC20.safeTransfer(IERC20(token), beneficiary(), amount);
    }

    /**
     * @dev Calculates the amount of ether that has already vested. Default implementation is a linear vesting curve.
     */
    function vestedAmount(uint64 timestamp) public view virtual returns (uint256) {
        return _vestingSchedule(address(this).balance + released(), timestamp);
    }

    /**
     * @dev Calculates the amount of tokens that has already vested. Default implementation is a linear vesting curve.
     */
    function vestedAmount(address token, uint64 timestamp) public view virtual returns (uint256) {
        return _vestingSchedule(IERC20(token).balanceOf(address(this)) + released(token), timestamp);
    }

    /**
     * @dev Virtual implementation of the vesting formula. This returns the amount vested, as a function of time, for
     * an asset given its total historical allocation.
     */
    function _vestingSchedule(uint256 totalAllocation, uint64 timestamp) internal view virtual returns (uint256) {
        if (timestamp < start()) {
            return 0;
        } else if (timestamp > start() + duration()) {
            return totalAllocation;
        } else {
            return (totalAllocation * (timestamp - start())) / duration();
        }
    }
}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
import "./IStakingRewards.sol";


interface ILiquidity is IStakingRewards
	{
	function depositLiquidityAndIncreaseShare( IERC20 tokenA, IERC20 tokenB, uint256 maxAmountA, uint256 maxAmountB, uint256 minAddedAmountA, uint256 minAddedAmountB, uint256 minAddedLiquidity, uint256 deadline, bool useZapping ) external returns (uint256 addedLiquidity);
	function withdrawLiquidityAndClaim( IERC20 tokenA, IERC20 tokenB, uint256 liquidityToWithdraw, uint256 minReclaimedA, uint256 minReclaimedB, uint256 deadline ) external returns (uint256 reclaimedA, uint256 reclaimedB);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "./IBootstrapBallot.sol";
import "./IAirdrop.sol";


interface IInitialDistribution
	{
	function distributionApproved( IAirdrop airdrop1, IAirdrop airdrop2 ) external;

	// Views
	function bootstrapBallot() external view returns (IBootstrapBallot);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "../../staking/interfaces/IStakingRewards.sol";


interface IRewardsEmitter
	{
	function addSALTRewards( AddedReward[] calldata addedRewards ) external;
	function performUpkeep( uint256 timeSinceLastUpkeep ) external;

	// Views
	function pendingRewardsForPools( bytes32[] calldata pools ) external view returns (uint256[] calldata);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "./IRewardsEmitter.sol";


interface ISaltRewards
	{
	function sendInitialSaltRewards( uint256 liquidityBootstrapAmount, bytes32[] calldata poolIDs ) external;
    function performUpkeep( bytes32[] calldata poolIDs, uint256[] calldata profitsForPools ) external;

    // Views
    function stakingRewardsEmitter() external view returns (IRewardsEmitter);
    function liquidityRewardsEmitter() external view returns (IRewardsEmitter);
    }

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;


interface IEmissions
	{
	function performUpkeep( uint256 timeSinceLastUpkeep ) external;
    }

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;


interface IAccessManager
	{
	function excludedCountriesUpdated() external;
	function grantAccess(bytes calldata signature) external;

	// Views
	function geoVersion() external view returns (uint256);
	function walletHasAccess(address wallet) external view returns (bool);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;


interface IAirdrop
	{
	function authorizeWallet( address wallet, uint256 saltAmount ) external;
	function allowClaiming() external;
	function claim() external;

	// Views
	function claimedByUser( address wallet) external view returns (uint256);
	function claimingAllowed() external view returns (bool);
	function claimingStartTimestamp() external view returns (uint256);
	function claimableAmount(address wallet) external view returns (uint256);
    function airdropForUser( address wallet ) external view returns (uint256);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;

import "../../rewards/interfaces/ISaltRewards.sol";
import "../../pools/interfaces/IPools.sol";
import "../../interfaces/ISalt.sol";

interface IDAO
	{
	function finalizeBallot( uint256 ballotID ) external;
	function manuallyRemoveBallot( uint256 ballotID ) external;

	function withdrawFromDAO( IERC20 token ) external returns (uint256 withdrawnAmount);

	// Views
	function pools() external view returns (IPools);
	function websiteURL() external view returns (string memory);
	function countryIsExcluded( string calldata country ) external view returns (bool);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;


interface IUpkeep
	{
	function performUpkeep() external;

	// Views
	function currentRewardsForCallingPerformUpkeep() external view returns (uint256);
	function lastUpkeepTimeEmissions() external view returns (uint256);
	function lastUpkeepTimeRewardsEmitters() external view returns (uint256);
	}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;


interface IPoolStats
	{
	// These are the indicies (in terms of a poolIDs location in the current whitelistedPoolIDs array) of pools involved in an arbitrage path
	struct ArbitrageIndicies
		{
		uint64 index1;
		uint64 index2;
		uint64 index3;
		}

	function clearProfitsForPools() external;
	function updateArbitrageIndicies() external;

	// Views
	function profitsForWhitelistedPools() external view returns (uint256[] memory _calculatedProfits);
	function arbitrageIndicies(bytes32 poolID) external view returns (ArbitrageIndicies memory);
	}

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

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with 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;
    }
}

// SPDX-License-Identifier: BUSL 1.1
pragma solidity =0.8.22;


interface IBootstrapBallot
	{
	function vote( bool voteStartExchangeYes, uint256 saltAmount, bytes calldata signature ) external;
	function finalizeBallot() external;

	function authorizeAirdrop2( uint256 saltAmount, bytes calldata signature ) external;
	function finalizeAirdrop2() external;

	// Views
	function claimableTimestamp1() external view returns (uint256);
	function claimableTimestamp2() external view returns (uint256);

	function hasVoted(address user) external view returns (bool);
	function ballotFinalized() external view returns (bool);

	function startExchangeYes() external view returns (uint256);
	function startExchangeNo() external view returns (uint256);
	}

{
  "remappings": [
    "chainlink/=lib/chainlink/",
    "ds-test/=lib/openzeppelin-contracts/lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "forge-std/=lib/openzeppelin-contracts/lib/forge-std/src/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "openzeppelin/=lib/openzeppelin-contracts/contracts/",
    "v3-core/=lib/v3-core/contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 10000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"contract IExchangeConfig","name":"_exchangeConfig","type":"address"},{"internalType":"contract IPoolsConfig","name":"_poolsConfig","type":"address"},{"internalType":"contract IStakingConfig","name":"_stakingConfig","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"wallet","type":"address"},{"indexed":false,"internalType":"uint256","name":"claimedRewards","type":"uint256"}],"name":"RewardsClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"uint256","name":"unstakeID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"saltRecovered","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"expeditedUnstakeFee","type":"uint256"}],"name":"SALTRecovered","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountStaked","type":"uint256"}],"name":"SALTStaked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"poolID","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"amountAdded","type":"uint256"}],"name":"SaltRewardsAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"uint256","name":"unstakeID","type":"uint256"}],"name":"UnstakeCancelled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"user","type":"address"},{"indexed":true,"internalType":"uint256","name":"unstakeID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountUnstaked","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"claimableSALT","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"numWeeks","type":"uint256"}],"name":"UnstakeInitiated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"wallet","type":"address"},{"indexed":true,"internalType":"bytes32","name":"poolID","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"amountDecreased","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"claimedRewards","type":"uint256"}],"name":"UserShareDecreased","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"wallet","type":"address"},{"indexed":true,"internalType":"bytes32","name":"poolID","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"amountIncreased","type":"uint256"}],"name":"UserShareIncreased","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"toUser","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountTransferred","type":"uint256"}],"name":"XSALTTransferredFromAirdrop","type":"event"},{"inputs":[{"components":[{"internalType":"bytes32","name":"poolID","type":"bytes32"},{"internalType":"uint256","name":"amountToAdd","type":"uint256"}],"internalType":"struct AddedReward[]","name":"addedRewards","type":"tuple[]"}],"name":"addSALTRewards","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"unstakedXSALT","type":"uint256"},{"internalType":"uint256","name":"numWeeks","type":"uint256"}],"name":"calculateUnstake","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"unstakeID","type":"uint256"}],"name":"cancelUnstake","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"poolIDs","type":"bytes32[]"}],"name":"claimAllRewards","outputs":[{"internalType":"uint256","name":"claimableRewards","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"exchangeConfig","outputs":[{"internalType":"contract IExchangeConfig","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextUnstakeID","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"poolsConfig","outputs":[{"internalType":"contract IPoolsConfig","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"unstakeID","type":"uint256"}],"name":"recoverSALT","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"salt","outputs":[{"internalType":"contract ISalt","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountToStake","type":"uint256"}],"name":"stakeSALT","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"stakingConfig","outputs":[{"internalType":"contract IStakingConfig","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"totalRewards","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"poolIDs","type":"bytes32[]"}],"name":"totalRewardsForPools","outputs":[{"internalType":"uint256[]","name":"rewards","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"totalShares","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32[]","name":"poolIDs","type":"bytes32[]"}],"name":"totalSharesForPools","outputs":[{"internalType":"uint256[]","name":"shares","type":"uint256[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amountUnstaked","type":"uint256"},{"internalType":"uint256","name":"numWeeks","type":"uint256"}],"name":"unstake","outputs":[{"internalType":"uint256","name":"unstakeID","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"id","type":"uint256"}],"name":"unstakeByID","outputs":[{"components":[{"internalType":"enum UnstakeState","name":"status","type":"uint8"},{"internalType":"address","name":"wallet","type":"address"},{"internalType":"uint256","name":"unstakedXSALT","type":"uint256"},{"internalType":"uint256","name":"claimableSALT","type":"uint256"},{"internalType":"uint256","name":"completionTime","type":"uint256"},{"internalType":"uint256","name":"unstakeID","type":"uint256"}],"internalType":"struct Unstake","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"unstakesForUser","outputs":[{"components":[{"internalType":"enum UnstakeState","name":"status","type":"uint8"},{"internalType":"address","name":"wallet","type":"address"},{"internalType":"uint256","name":"unstakedXSALT","type":"uint256"},{"internalType":"uint256","name":"claimableSALT","type":"uint256"},{"internalType":"uint256","name":"completionTime","type":"uint256"},{"internalType":"uint256","name":"unstakeID","type":"uint256"}],"internalType":"struct Unstake[]","name":"","type":"tuple[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"},{"internalType":"uint256","name":"start","type":"uint256"},{"internalType":"uint256","name":"end","type":"uint256"}],"name":"unstakesForUser","outputs":[{"components":[{"internalType":"enum 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