Contract 0xB49F60bdBe04456EDd81E506DA75277ef3d5B3E4

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0x58c49d23596b1a435e17924ff04b65647c19eb8cf99e285037941df6d964f35f0x60a06040151679042022-09-18 13:24:0914 days 19 hrs ago0xdf3e980a175904a26a7ba627048a789ae6a141cd IN  Create: UBIScheme0 CELO0.0003778056
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Contract Source Code Verified (Exact Match)

Contract Name:
UBIScheme

Compiler Version
v0.8.8+commit.dddeac2f

Optimization Enabled:
Yes with 0 runs

Other Settings:
default evmVersion
File 1 of 22 : UBIScheme.sol
// SPDX-License-Identifier: MIXED

// License-Identifier: MIT
pragma solidity >=0.8.0;

import "../utils/DAOUpgradeableContract.sol";
import "../utils/NameService.sol";
import "../Interfaces.sol";
import "../governance/ClaimersDistribution.sol";

/* @title Dynamic amount-per-day UBI scheme allowing claim once a day
 */
contract UBIScheme is DAOUpgradeableContract {
	struct Day {
		mapping(address => bool) hasClaimed;
		uint256 amountOfClaimers;
		uint256 claimAmount;
	}

	//daily statistics
	mapping(uint256 => Day) public claimDay;

	//last ubi claim of user
	mapping(address => uint256) public lastClaimed;

	//current day since start of contract
	uint256 public currentDay;

	//starting date of contract, used to determine the hour where daily ubi cycle starts
	uint256 public periodStart;

	// Result of distribution formula
	// calculated each day
	uint256 public dailyUbi;

	// Limits the gas for each iteration at `fishMulti`
	uint256 public iterationGasLimit;

	// Tracks the active users number. It changes when
	// a new user claim for the first time or when a user
	// has been fished
	uint256 public activeUsersCount;

	// Tracks the last withdrawal day of funds from avatar.
	// Withdraw occures on the first daily claim or the
	// first daily fish only
	uint256 public lastWithdrawDay;

	// How long can a user be inactive.
	// After those days the user can be fished
	// (see `fish` notes)
	uint256 public maxInactiveDays;

	// Whether to withdraw GD from avatar
	// before daily ubi calculation
	bool public shouldWithdrawFromDAO;

	//number of days of each UBI pool cycle
	//dailyPool = Pool/cycleLength
	uint256 public cycleLength;

	//the amount of G$ UBI pool for each day in the cycle to be divided by active users
	uint256 public dailyCyclePool;

	//timestamp of current cycle start
	uint256 public startOfCycle;

	//should be 0 for starters so distributionFormula detects new cycle on first day claim
	uint256 public currentCycleLength;

	//dont use first claim, and give ubi as usual
	bool public useFirstClaimPool;

	//minimum amount of users to divide the pool for, renamed from defaultDailyUbi
	uint256 public minActiveUsers;

	// A pool of GD to give to activated users,
	// since they will enter the UBI pool
	// calculations only in the next day,
	// meaning they can only claim in the next
	// day
	IFirstClaimPool public firstClaimPool;

	struct Funds {
		// marks if the funds for a specific day has
		// withdrawn from avatar
		bool hasWithdrawn;
		// total GD held after withdrawing
		uint256 openAmount;
	}

	// Tracks the daily withdraws and the actual amount
	// at the begining of a trading day
	mapping(uint256 => Funds) public dailyUBIHistory;

	// Marks users that have been fished to avoid
	// double fishing
	mapping(address => bool) public fishedUsersAddresses;

	// Total claims per user stat
	mapping(address => uint256) public totalClaimsPerUser;

	bool public paused;

	// Emits when a withdraw has been succeded
	event WithdrawFromDao(uint256 prevBalance, uint256 newBalance);

	// Emits when a user is activated
	event ActivatedUser(address indexed account);

	// Emits when a fish has been succeded
	event InactiveUserFished(
		address indexed caller,
		address indexed fished_account,
		uint256 claimAmount
	);

	// Emits when finishing a `multi fish` execution.
	// Indicates the number of users from the given
	// array who actually been fished. it might not
	// be finished going over all the array if there
	// no gas left.
	event TotalFished(uint256 total);

	// Emits when daily ubi is calculated
	event UBICalculated(uint256 day, uint256 dailyUbi, uint256 blockNumber);

	//Emits whenever a new multi day cycle starts
	event UBICycleCalculated(
		uint256 day,
		uint256 pool,
		uint256 cycleLength,
		uint256 dailyUBIPool
	);

	event UBIClaimed(address indexed claimer, uint256 amount);
	event CycleLengthSet(uint256 newCycleLength);
	event DaySet(uint256 newDay);
	event ShouldWithdrawFromDAOSet(bool ShouldWithdrawFromDAO);

	/**
	 * @dev Constructor
	 * @param _ns the DAO
	 * @param _firstClaimPool A pool for GD to give out to activated users
	 * @param _maxInactiveDays Days of grace without claiming request
	 */
	function initialize(
		INameService _ns,
		IFirstClaimPool _firstClaimPool,
		uint256 _maxInactiveDays
	) public initializer {
		require(_maxInactiveDays > 0, "Max inactive days cannot be zero");
		setDAO(_ns);
		maxInactiveDays = _maxInactiveDays;
		firstClaimPool = _firstClaimPool;
		shouldWithdrawFromDAO = false;
		cycleLength = 90; //90 days
		iterationGasLimit = 150000;
		periodStart = (block.timestamp / (1 days)) * 1 days + 12 hours; //set start time to GMT noon
		startOfCycle = periodStart;
		useFirstClaimPool = address(_firstClaimPool) != address(0);
		minActiveUsers = 1000;
	}

	function setUseFirstClaimPool(bool _use) public {
		_onlyAvatar();
		useFirstClaimPool = _use;
	}

	/**
	 * @dev function that gets the amount of people who claimed on the given day
	 * @param day the day to get claimer count from, with 0 being the starting day
	 * @return an integer indicating the amount of people who claimed that day
	 */
	function getClaimerCount(uint256 day) public view returns (uint256) {
		return claimDay[day].amountOfClaimers;
	}

	/**
	 * @dev function that gets the amount that was claimed on the given day
	 * @param day the day to get claimer count from, with 0 being the starting day
	 * @return an integer indicating the amount that has been claimed on the given day
	 */
	function getClaimAmount(uint256 day) public view returns (uint256) {
		return claimDay[day].claimAmount;
	}

	/**
	 * @dev function that gets count of claimers and amount claimed for the current day
	 * @return the count of claimers and the amount claimed.
	 */
	function getDailyStats() public view returns (uint256, uint256) {
		uint256 today = (block.timestamp - periodStart) / 1 days;
		return (getClaimerCount(today), getClaimAmount(today));
	}

	modifier requireStarted() {
		require(
			paused == false && periodStart > 0 && block.timestamp >= periodStart,
			"not in periodStarted or paused"
		);
		_;
	}

	/**
	 * @dev On a daily basis UBIScheme withdraws tokens from GoodDao.
	 * Emits event with caller address and last day balance and the
	 * updated balance.
	 */
	function _withdrawFromDao() internal {
		IGoodDollar token = nativeToken();
		uint256 prevBalance = token.balanceOf(address(this));
		uint256 toWithdraw = token.balanceOf(address(avatar));
		dao.genericCall(
			address(token),
			abi.encodeWithSignature(
				"transfer(address,uint256)",
				address(this),
				toWithdraw
			),
			address(avatar),
			0
		);
		uint256 newBalance = prevBalance + toWithdraw;
		require(
			newBalance == token.balanceOf(address(this)),
			"DAO transfer has failed"
		);
		emit WithdrawFromDao(prevBalance, newBalance);
	}

	/**
	 * @dev sets the ubi calculation cycle length
	 * @param _newLength the new length in days
	 */
	function setCycleLength(uint256 _newLength) public {
		_onlyAvatar();
		require(_newLength > 0, "cycle must be at least 1 day long");
		cycleLength = _newLength;
		currentCycleLength = 0; //this will trigger a distributionFormula on next claim day
		emit CycleLengthSet(_newLength);
	}

	/**
	 * @dev returns the day count since start of current cycle
	 */
	function currentDayInCycle() public view returns (uint256) {
		return (block.timestamp - startOfCycle) / (1 days);
	}

	/**
	 * @dev The claim calculation formula. Divide the daily pool with
	 * the sum of the active users.
	 * the daily balance is determined by dividing current pool by the cycle length
	 * @return The amount of GoodDollar the user can claim
	 */
	function distributionFormula() internal returns (uint256) {
		setDay();
		// on first day or once in 24 hrs calculate distribution
		//on day 0 all users receive from firstclaim pool
		if (currentDay != lastWithdrawDay || dailyUbi == 0) {
			IGoodDollar token = nativeToken();
			uint256 currentBalance = token.balanceOf(address(this));
			//start early cycle if we can increase the daily UBI pool
			bool shouldStartEarlyCycle = currentBalance / cycleLength >
				dailyCyclePool;

			if (
				currentDayInCycle() >= currentCycleLength || shouldStartEarlyCycle
			) //start of cycle or first time
			{
				if (shouldWithdrawFromDAO) _withdrawFromDao();
				currentBalance = token.balanceOf(address(this));
				dailyCyclePool = currentBalance / cycleLength;
				currentCycleLength = cycleLength;
				startOfCycle = (block.timestamp / (1 hours)) * 1 hours; //start at a round hour
				emit UBICycleCalculated(
					currentDay,
					currentBalance,
					cycleLength,
					dailyCyclePool
				);
			}

			lastWithdrawDay = currentDay;
			Funds storage funds = dailyUBIHistory[currentDay];
			funds.hasWithdrawn = shouldWithdrawFromDAO;
			funds.openAmount = currentBalance;
			dailyUbi = dailyCyclePool / max(activeUsersCount, minActiveUsers);
			//update minActiveUsers as claimers grow
			minActiveUsers = max(activeUsersCount / 2, minActiveUsers);

			emit UBICalculated(currentDay, dailyUbi, block.number);
		}

		return dailyUbi;
	}

	function max(uint256 a, uint256 b) private pure returns (uint256) {
		return a >= b ? a : b;
	}

	/**
	 *@dev Sets the currentDay variable to amount of days
	 * since start of contract.
	 */
	function setDay() public {
		uint256 day = (block.timestamp - periodStart) / (1 days);
		if (day > currentDay) {
			currentDay = day;
			emit DaySet(day);
		}
	}

	/**
	 * @dev Checks if the given account has claimed today
	 * @param account to check
	 * @return True if the given user has already claimed today
	 */
	function hasClaimed(address account) public view returns (bool) {
		return claimDay[currentDay].hasClaimed[account];
	}

	/**
	 * @dev Checks if the given account has been owned by a registered user.
	 * @param _account to check
	 * @return True for an existing user. False for a new user
	 */
	function isNotNewUser(address _account) public view returns (bool) {
		if (lastClaimed[_account] > 0) {
			// the sender is not registered
			return true;
		}
		return false;
	}

	/**
	 * @dev Checks weather the given address is owned by an active user.
	 * A registered user is a user that claimed at least one time. An
	 * active user is a user that claimed at least one time but claimed
	 * at least one time in the last `maxInactiveDays` days. A user that
	 * has not claimed for `maxInactiveDays` is an inactive user.
	 * @param _account to check
	 * @return True for active user
	 */
	function isActiveUser(address _account) public view returns (bool) {
		uint256 _lastClaimed = lastClaimed[_account];
		if (isNotNewUser(_account)) {
			uint256 daysSinceLastClaim = (block.timestamp - _lastClaimed) / (1 days);
			if (daysSinceLastClaim < maxInactiveDays) {
				// active user
				return true;
			}
		}
		return false;
	}

	/**
	 * @dev Transfers `amount` DAO tokens to `account`. Updates stats
	 * and emits an event in case of claimed.
	 * In case that `isFirstTime` is true, it awards the user.
	 * @param _account the account which recieves the funds
	 * @param _target the recipient of funds
	 * @param _amount the amount to transfer
	 * @param _isClaimed true for claimed
	 * @param _isFirstTime true for new user or fished user
	 */
	function _transferTokens(
		address _account,
		address _target,
		uint256 _amount,
		bool _isClaimed,
		bool _isFirstTime
	) internal {
		// updates the stats
		if (_isClaimed || _isFirstTime) {
			//in case of fishing dont update stats
			claimDay[currentDay].amountOfClaimers += 1;
			claimDay[currentDay].hasClaimed[_account] = true;
			lastClaimed[_account] = block.timestamp;
			totalClaimsPerUser[_account] += 1;
		}

		// awards a new user or a fished user
		if (_isFirstTime) {
			uint256 awardAmount = firstClaimPool.awardUser(_target);
			claimDay[currentDay].claimAmount += awardAmount;
			emit UBIClaimed(_account, awardAmount);
		} else {
			if (_isClaimed) {
				claimDay[currentDay].claimAmount += _amount;
				emit UBIClaimed(_account, _amount);
			}
			IGoodDollar token = nativeToken();
			require(token.transfer(_target, _amount), "claim transfer failed");
		}
	}

	function estimateNextDailyUBI() public view returns (uint256) {
		uint256 currentBalance = nativeToken().balanceOf(address(this));
		//start early cycle if we can increase the daily UBI pool
		bool shouldStartEarlyCycle = currentBalance / cycleLength > dailyCyclePool;

		uint256 _dailyCyclePool = dailyCyclePool;
		uint256 _dailyUbi;
		if (
			currentDayInCycle() >= currentCycleLength || shouldStartEarlyCycle
		) //start of cycle or first time
		{
			_dailyCyclePool = currentBalance / cycleLength;
		}

		_dailyUbi = _dailyCyclePool / max(activeUsersCount, minActiveUsers);

		return _dailyUbi;
	}

	function checkEntitlement() public view returns (uint256) {
		return checkEntitlement(msg.sender);
	}

	/**
	 * @dev Checks the amount which the sender address is eligible to claim for,
	 * regardless if they have been whitelisted or not. In case the user is
	 * active, then the current day must be equal to the actual day, i.e. claim
	 * or fish has already been executed today.
	 * @return The amount of GD tokens the address can claim.
	 */
	function checkEntitlement(address _member) public view returns (uint256) {
		if (block.timestamp < periodStart) return 0; //not started
		// new user or inactive should recieve the first claim reward
		if (
			useFirstClaimPool &&
			(!isNotNewUser(_member) || fishedUsersAddresses[_member])
		) {
			return firstClaimPool.claimAmount();
		}

		// current day has already been updated which means
		// that the dailyUbi has been updated
		if (
			currentDay == (block.timestamp - periodStart) / (1 days) && dailyUbi > 0
		) {
			return hasClaimed(_member) ? 0 : dailyUbi;
		}
		return estimateNextDailyUBI();
	}

	/**
	 * @dev Function for claiming UBI. Requires contract to be active. Calls distributionFormula,
	 * calculats the amount the account can claims, and transfers the amount to the account.
	 * Emits the address of account and amount claimed.
	 * @param _account The claimer account
	 * @param _target recipient of funds
	 * @return A bool indicating if UBI was claimed
	 */
	function _claim(address _account, address _target) internal returns (bool) {
		// calculats the formula up today ie on day 0 there are no active users, on day 1 any user
		// (new or active) will trigger the calculation with the active users count of the day before
		// and so on. the new or inactive users that will become active today, will not take into account
		// within the calculation.
		uint256 newDistribution = distributionFormula();

		// active user which has not claimed today yet, ie user last claimed < today
		if (
			isNotNewUser(_account) &&
			!fishedUsersAddresses[_account] &&
			!hasClaimed(_account)
		) {
			_transferTokens(_account, _target, newDistribution, true, false);
			return true;
		} else if (!isNotNewUser(_account) || fishedUsersAddresses[_account]) {
			// a unregistered or fished user
			activeUsersCount += 1;
			fishedUsersAddresses[_account] = false;
			if (useFirstClaimPool) {
				_transferTokens(_account, _target, 0, false, true);
			} else {
				_transferTokens(_account, _target, newDistribution, true, false);
			}
			emit ActivatedUser(_account);
			return true;
		}
		return false;
	}

	/**
	 * @dev Function for claiming UBI. Requires contract to be active and claimer to be whitelisted.
	 * Calls distributionFormula, calculats the amount the caller can claim, and transfers the amount
	 * to the caller. Emits the address of caller and amount claimed.
	 * @return A bool indicating if UBI was claimed
	 */
	function claim() public requireStarted returns (bool) {
		address whitelistedRoot = IIdentityV2(nameService.getAddress("IDENTITY"))
			.getWhitelistedRoot(msg.sender);
		require(whitelistedRoot != address(0), "UBIScheme: not whitelisted");
		bool didClaim = _claim(whitelistedRoot, msg.sender);
		address claimerDistribution = nameService.getAddress("GDAO_CLAIMERS");
		if (didClaim && claimerDistribution != address(0)) {
			ClaimersDistribution(claimerDistribution).updateClaim(whitelistedRoot);
		}
		return didClaim;
	}

	/**
	 * @dev In order to update users from active to inactive, we give out incentive to people
	 * to update the status of inactive users, this action is called "Fishing". Anyone can
	 * send a tx to the contract to mark inactive users. The "fisherman" receives a reward
	 * equal to the daily UBI (ie instead of the “fished” user). User that “last claimed” > 14
	 * can be "fished" and made inactive (reduces active users count by one). Requires
	 * contract to be active.
	 * @param _account to fish
	 * @return A bool indicating if UBI was fished
	 */
	function fish(address _account) public requireStarted returns (bool) {
		// checking if the account exists. that's been done because that
		// will prevent trying to fish non-existence accounts in the system
		require(
			isNotNewUser(_account) && !isActiveUser(_account),
			"is not an inactive user"
		);
		require(!fishedUsersAddresses[_account], "already fished");
		fishedUsersAddresses[_account] = true; // marking the account as fished so it won't refish

		// making sure that the calculation will be with the correct number of active users in case
		// that the fisher is the first to make the calculation today
		uint256 newDistribution = distributionFormula();
		if (activeUsersCount > 0) {
			activeUsersCount -= 1;
		}
		_transferTokens(msg.sender, msg.sender, newDistribution, false, false);
		emit InactiveUserFished(msg.sender, _account, newDistribution);
		return true;
	}

	/**
	 * @dev executes `fish` with multiple addresses. emits the number of users from the given
	 * array who actually been tried being fished.
	 * @param _accounts to fish
	 * @return A bool indicating if all the UBIs were fished
	 */
	function fishMulti(address[] memory _accounts)
		public
		requireStarted
		returns (uint256)
	{
		for (uint256 i = 0; i < _accounts.length; ++i) {
			if (gasleft() < iterationGasLimit) {
				emit TotalFished(i);
				return i;
			}
			if (
				isNotNewUser(_accounts[i]) &&
				!isActiveUser(_accounts[i]) &&
				!fishedUsersAddresses[_accounts[i]]
			) {
				require(fish(_accounts[i]), "fish has failed");
			}
		}
		emit TotalFished(_accounts.length);
		return _accounts.length;
	}

	/**
	 * @dev Sets whether to also withdraw GD from avatar for UBI
	 * @param _shouldWithdraw boolean if to withdraw
	 */
	function setShouldWithdrawFromDAO(bool _shouldWithdraw) public {
		_onlyAvatar();
		shouldWithdrawFromDAO = _shouldWithdraw;
		emit ShouldWithdrawFromDAOSet(shouldWithdrawFromDAO);
	}

	function pause(bool _pause) public {
		_onlyAvatar();
		paused = _pause;
	}

	// function upgrade() public {
	// 	_onlyAvatar();
	// 	paused = true;
	// 	activeUsersCount = 50000; //estimated
	// 	dailyUbi = 0; //required so distributionformula will trigger
	// 	cycleLength = 30;
	// 	currentCycleLength = 0; //this will trigger a new cycle calculation in distribution formula
	// 	startOfCycle = block.timestamp - 91 days; //this will trigger a new calculation in distributionFormula
	// 	periodStart = 1646136000;
	// 	maxDailyUBI = 50000;
	// 	distributionFormula();
	// 	emit CycleLengthSet(cycleLength);
	// }

	function setActiveUserCount(uint256 _activeUserCount) public {
		_onlyAvatar();
		activeUsersCount = _activeUserCount;
	}
}

File 2 of 22 : DAOUpgradeableContract.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";

import "./DAOContract.sol";

/**
@title Simple contract that adds upgradability to DAOContract
*/

contract DAOUpgradeableContract is Initializable, UUPSUpgradeable, DAOContract {
	function _authorizeUpgrade(address) internal virtual override {
		_onlyAvatar();
	}
}

File 3 of 22 : NameService.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";

import "../DAOStackInterfaces.sol";

/**
@title Simple name to address resolver
*/

contract NameService is Initializable, UUPSUpgradeable {
	mapping(bytes32 => address) public addresses;

	Controller public dao;
	event AddressChanged(string name ,address addr);
	function initialize(
		Controller _dao,
		bytes32[] memory _nameHashes,
		address[] memory _addresses
	) public virtual initializer {
		dao = _dao;
		for (uint256 i = 0; i < _nameHashes.length; i++) {
			addresses[_nameHashes[i]] = _addresses[i];
		}
		addresses[keccak256(bytes("CONTROLLER"))] = address(_dao);
		addresses[keccak256(bytes("AVATAR"))] = address(_dao.avatar());
	}

	function _authorizeUpgrade(address) internal override {
		_onlyAvatar();
	}

	function _onlyAvatar() internal view {
		require(
			address(dao.avatar()) == msg.sender,
			"only avatar can call this method"
		);
	}

	function setAddress(string memory name, address addr) external {
		_onlyAvatar();
		addresses[keccak256(bytes(name))] = addr;
		emit AddressChanged(name, addr);
	}

	function setAddresses(bytes32[] calldata hash, address[] calldata addrs)
		external
	{
		_onlyAvatar();
		for (uint256 i = 0; i < hash.length; i++) {
			addresses[hash[i]] = addrs[i];
		}
	}

	function getAddress(string memory name) external view returns (address) {
		return addresses[keccak256(bytes(name))];
	}
}

File 4 of 22 : Interfaces.sol
// SPDX-License-Identifier: MIT
import { DataTypes } from "./utils/DataTypes.sol";
pragma solidity >=0.8.0;

pragma experimental ABIEncoderV2;

interface ERC20 {
	function balanceOf(address addr) external view returns (uint256);

	function transfer(address to, uint256 amount) external returns (bool);

	function approve(address spender, uint256 amount) external returns (bool);

	function decimals() external view returns (uint8);

	function mint(address to, uint256 mintAmount) external returns (uint256);

	function burn(uint256 amount) external;

	function totalSupply() external view returns (uint256);

	function allowance(address owner, address spender)
		external
		view
		returns (uint256);

	function transferFrom(
		address sender,
		address recipient,
		uint256 amount
	) external returns (bool);

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

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

	event Transfer(address indexed from, address indexed to, uint256 amount);
	event Transfer(
		address indexed from,
		address indexed to,
		uint256 amount,
		bytes data
	);
}

interface cERC20 is ERC20 {
	function mint(uint256 mintAmount) external returns (uint256);

	function redeemUnderlying(uint256 mintAmount) external returns (uint256);

	function redeem(uint256 mintAmount) external returns (uint256);

	function exchangeRateCurrent() external returns (uint256);

	function exchangeRateStored() external view returns (uint256);

	function underlying() external returns (address);
}

interface IGoodDollar is ERC20 {
	function getFees(uint256 value) external view returns (uint256, bool);

	function burn(uint256 amount) external;

	function burnFrom(address account, uint256 amount) external;

	function renounceMinter() external;

	function addMinter(address minter) external;

	function isMinter(address minter) external view returns (bool);

	function transferAndCall(
		address to,
		uint256 value,
		bytes calldata data
	) external returns (bool);

	function formula() external view returns (address);
}

interface IERC2917 is ERC20 {
	/// @dev This emit when interests amount per block is changed by the owner of the contract.
	/// It emits with the old interests amount and the new interests amount.
	event InterestRatePerBlockChanged(uint256 oldValue, uint256 newValue);

	/// @dev This emit when a users' productivity has changed
	/// It emits with the user's address and the the value after the change.
	event ProductivityIncreased(address indexed user, uint256 value);

	/// @dev This emit when a users' productivity has changed
	/// It emits with the user's address and the the value after the change.
	event ProductivityDecreased(address indexed user, uint256 value);

	/// @dev Return the current contract's interests rate per block.
	/// @return The amount of interests currently producing per each block.
	function interestsPerBlock() external view returns (uint256);

	/// @notice Change the current contract's interests rate.
	/// @dev Note the best practice will be restrict the gross product provider's contract address to call this.
	/// @return The true/fase to notice that the value has successfully changed or not, when it succeed, it will emite the InterestRatePerBlockChanged event.
	function changeInterestRatePerBlock(uint256 value) external returns (bool);

	/// @notice It will get the productivity of given user.
	/// @dev it will return 0 if user has no productivity proved in the contract.
	/// @return user's productivity and overall productivity.
	function getProductivity(address user)
		external
		view
		returns (uint256, uint256);

	/// @notice increase a user's productivity.
	/// @dev Note the best practice will be restrict the callee to prove of productivity's contract address.
	/// @return true to confirm that the productivity added success.
	function increaseProductivity(address user, uint256 value)
		external
		returns (bool);

	/// @notice decrease a user's productivity.
	/// @dev Note the best practice will be restrict the callee to prove of productivity's contract address.
	/// @return true to confirm that the productivity removed success.
	function decreaseProductivity(address user, uint256 value)
		external
		returns (bool);

	/// @notice take() will return the interests that callee will get at current block height.
	/// @dev it will always calculated by block.number, so it will change when block height changes.
	/// @return amount of the interests that user are able to mint() at current block height.
	function take() external view returns (uint256);

	/// @notice similar to take(), but with the block height joined to calculate return.
	/// @dev for instance, it returns (_amount, _block), which means at block height _block, the callee has accumulated _amount of interests.
	/// @return amount of interests and the block height.
	function takeWithBlock() external view returns (uint256, uint256);

	/// @notice mint the avaiable interests to callee.
	/// @dev once it mint, the amount of interests will transfer to callee's address.
	/// @return the amount of interests minted.
	function mint() external returns (uint256);
}

interface Staking {
	struct Staker {
		// The staked DAI amount
		uint256 stakedDAI;
		// The latest block number which the
		// staker has staked tokens
		uint256 lastStake;
	}

	function stakeDAI(uint256 amount) external;

	function withdrawStake() external;

	function stakers(address staker) external view returns (Staker memory);
}

interface Uniswap {
	function swapExactETHForTokens(
		uint256 amountOutMin,
		address[] calldata path,
		address to,
		uint256 deadline
	) external payable returns (uint256[] memory amounts);

	function swapExactTokensForETH(
		uint256 amountIn,
		uint256 amountOutMin,
		address[] calldata path,
		address to,
		uint256 deadline
	) external returns (uint256[] memory amounts);

	function swapExactTokensForTokens(
		uint256 amountIn,
		uint256 amountOutMin,
		address[] calldata path,
		address to,
		uint256 deadline
	) external returns (uint256[] memory amounts);

	function WETH() external pure returns (address);

	function factory() external pure returns (address);

	function quote(
		uint256 amountA,
		uint256 reserveA,
		uint256 reserveB
	) external pure returns (uint256 amountB);

	function getAmountIn(
		uint256 amountOut,
		uint256 reserveIn,
		uint256 reserveOut
	) external pure returns (uint256 amountIn);

	function getAmountOut(
		uint256 amountI,
		uint256 reserveIn,
		uint256 reserveOut
	) external pure returns (uint256 amountOut);

	function getAmountsOut(uint256 amountIn, address[] memory path)
		external
		pure
		returns (uint256[] memory amounts);
}

interface UniswapFactory {
	function getPair(address tokenA, address tokenB)
		external
		view
		returns (address);
}

interface UniswapPair {
	function getReserves()
		external
		view
		returns (
			uint112 reserve0,
			uint112 reserve1,
			uint32 blockTimestampLast
		);

	function kLast() external view returns (uint256);

	function token0() external view returns (address);

	function token1() external view returns (address);

	function totalSupply() external view returns (uint256);

	function balanceOf(address owner) external view returns (uint256);
}

interface Reserve {
	function buy(
		address _buyWith,
		uint256 _tokenAmount,
		uint256 _minReturn
	) external returns (uint256);
}

interface IIdentity {
	function isWhitelisted(address user) external view returns (bool);

	function addWhitelistedWithDID(address account, string memory did) external;

	function removeWhitelisted(address account) external;

	function addBlacklisted(address account) external;

	function removeBlacklisted(address account) external;

	function isBlacklisted(address user) external view returns (bool);

	function addIdentityAdmin(address account) external returns (bool);

	function setAvatar(address _avatar) external;

	function isIdentityAdmin(address account) external view returns (bool);

	function owner() external view returns (address);

	function removeContract(address account) external;

	function isDAOContract(address account) external view returns (bool);

	event WhitelistedAdded(address user);
}

interface IIdentityV2 is IIdentity {
	function addWhitelistedWithDIDAndChain(
		address account,
		string memory did,
		uint256 orgChainId,
		uint256 dateAuthenticated
	) external;

	function getWhitelistedRoot(address account)
		external
		view
		returns (address root);
}

interface IUBIScheme {
	function currentDay() external view returns (uint256);

	function periodStart() external view returns (uint256);

	function hasClaimed(address claimer) external view returns (bool);
}

interface IFirstClaimPool {
	function awardUser(address user) external returns (uint256);

	function claimAmount() external view returns (uint256);
}

interface ProxyAdmin {
	function getProxyImplementation(address proxy)
		external
		view
		returns (address);

	function getProxyAdmin(address proxy) external view returns (address);

	function upgrade(address proxy, address implementation) external;

	function owner() external view returns (address);

	function transferOwnership(address newOwner) external;

	function upgradeAndCall(
		address proxy,
		address implementation,
		bytes memory data
	) external;
}

/**
 * @dev Interface for chainlink oracles to obtain price datas
 */
interface AggregatorV3Interface {
	function decimals() external view returns (uint8);

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

	function version() external view returns (uint256);

	// getRoundData and latestRoundData should both raise "No data present"
	// if they do not have data to report, instead of returning unset values
	// which could be misinterpreted as actual reported values.
	function getRoundData(uint80 _roundId)
		external
		view
		returns (
			uint80 roundId,
			int256 answer,
			uint256 startedAt,
			uint256 updatedAt,
			uint80 answeredInRound
		);

	function latestAnswer() external view returns (int256);
}

/**
	@dev interface for AAVE lending Pool
 */
interface ILendingPool {
	/**
	 * @dev Deposits an `amount` of underlying asset into the reserve, receiving in return overlying aTokens.
	 * - E.g. User deposits 100 USDC and gets in return 100 aUSDC
	 * @param asset The address of the underlying asset to deposit
	 * @param amount The amount to be deposited
	 * @param onBehalfOf The address that will receive the aTokens, same as msg.sender if the user
	 *   wants to receive them on his own wallet, or a different address if the beneficiary of aTokens
	 *   is a different wallet
	 * @param referralCode Code used to register the integrator originating the operation, for potential rewards.
	 *   0 if the action is executed directly by the user, without any middle-man
	 **/
	function deposit(
		address asset,
		uint256 amount,
		address onBehalfOf,
		uint16 referralCode
	) external;

	/**
	 * @dev Withdraws an `amount` of underlying asset from the reserve, burning the equivalent aTokens owned
	 * E.g. User has 100 aUSDC, calls withdraw() and receives 100 USDC, burning the 100 aUSDC
	 * @param asset The address of the underlying asset to withdraw
	 * @param amount The underlying amount to be withdrawn
	 *   - Send the value type(uint256).max in order to withdraw the whole aToken balance
	 * @param to Address that will receive the underlying, same as msg.sender if the user
	 *   wants to receive it on his own wallet, or a different address if the beneficiary is a
	 *   different wallet
	 * @return The final amount withdrawn
	 **/
	function withdraw(
		address asset,
		uint256 amount,
		address to
	) external returns (uint256);

	/**
	 * @dev Returns the state and configuration of the reserve
	 * @param asset The address of the underlying asset of the reserve
	 * @return The state of the reserve
	 **/
	function getReserveData(address asset)
		external
		view
		returns (DataTypes.ReserveData memory);
}

interface IDonationStaking {
	function stakeDonations() external payable;
}

interface INameService {
	function getAddress(string memory _name) external view returns (address);
}

interface IAaveIncentivesController {
	/**
	 * @dev Claims reward for an user, on all the assets of the lending pool, accumulating the pending rewards
	 * @param amount Amount of rewards to claim
	 * @param to Address that will be receiving the rewards
	 * @return Rewards claimed
	 **/
	function claimRewards(
		address[] calldata assets,
		uint256 amount,
		address to
	) external returns (uint256);

	/**
	 * @dev Returns the total of rewards of an user, already accrued + not yet accrued
	 * @param user The address of the user
	 * @return The rewards
	 **/
	function getRewardsBalance(address[] calldata assets, address user)
		external
		view
		returns (uint256);
}

interface IGoodStaking {
	function collectUBIInterest(address recipient)
		external
		returns (
			uint256,
			uint256,
			uint256
		);

	function iToken() external view returns (address);

	function currentGains(
		bool _returnTokenBalanceInUSD,
		bool _returnTokenGainsInUSD
	)
		external
		view
		returns (
			uint256,
			uint256,
			uint256,
			uint256,
			uint256
		);

	function getRewardEarned(address user) external view returns (uint256);

	function getGasCostForInterestTransfer() external view returns (uint256);

	function rewardsMinted(
		address user,
		uint256 rewardsPerBlock,
		uint256 blockStart,
		uint256 blockEnd
	) external returns (uint256);
}

interface IHasRouter {
	function getRouter() external view returns (Uniswap);
}

interface IAdminWallet {
	function addAdmins(address payable[] memory _admins) external;

	function removeAdmins(address[] memory _admins) external;

	function owner() external view returns (address);

	function transferOwnership(address _owner) external;
}

interface IMultichainRouter {
	// Swaps `amount` `token` from this chain to `toChainID` chain with recipient `to`
	function anySwapOut(
		address token,
		address to,
		uint256 amount,
		uint256 toChainID
	) external;

	// Swaps `amount` `token` from this chain to `toChainID` chain with recipient `to`
	function anySwapOutUnderlying(
		address token,
		address to,
		uint256 amount,
		uint256 toChainID
	) external;
}

File 5 of 22 : ClaimersDistribution.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

import "../utils/DAOUpgradeableContract.sol";
import "../utils/NameService.sol";
import "../Interfaces.sol";
import "../governance/GReputation.sol";

/**
 * ClaimersDistribution providers callbacks that can be used by UBIScheme to update when a citizen
 * has claimed.
 * It will distribute GDAO each month pro rata based on number of claims
 */
contract ClaimersDistribution is DAOUpgradeableContract {
	///@notice reputation to distribute each month, will effect next month when set
	uint256 public monthlyReputationDistribution;

	///@notice month number since epoch
	uint256 public currentMonth;

	struct MonthData {
		mapping(address => uint256) claims; //claims per user in month
		uint256 totalClaims; // total claims in month
		uint256 monthlyDistribution; //monthlyReputationDistribution at the time when _updateMonth was called
	}

	///@notice keep track of each month distribution data
	mapping(uint256 => MonthData) public months;

	///@notice marks last month user claimed reputation for
	mapping(address => uint256) public lastMonthClaimed;

	///@notice tracks timestamp of last time user claimed UBI
	mapping(address => uint256) public lastUpdated;

	event ReputationEarned(
		address claimer,
		uint256 month,
		uint256 claims,
		uint256 reputation
	);

	event MonthlyDistributionSet(uint256 reputationAmount);

	function initialize(INameService _ns) public initializer {
		monthlyReputationDistribution = 4000000 ether; //4M as specified in specs
		_updateMonth();
		setDAO(_ns);
	}

	/**
	 * @dev update the monthly reputation distribution. only avatar can do that.
	 * @param newMonthlyReputationDistribution the new reputation amount to distribute
	 */
	function setMonthlyReputationDistribution(
		uint256 newMonthlyReputationDistribution
	) external {
		_onlyAvatar();
		monthlyReputationDistribution = newMonthlyReputationDistribution;
		emit MonthlyDistributionSet(newMonthlyReputationDistribution);
	}

	/**
	 * @dev internal function to switch to new month. records for new month the current monthlyReputationDistribution
	 */
	function _updateMonth() internal {
		uint256 month = block.timestamp / 30 days;
		if (month != currentMonth) {
			//update new month
			currentMonth = month;
			months[currentMonth]
			.monthlyDistribution = monthlyReputationDistribution;
		}
	}

	/**
	 * @dev increase user count of claims if he claimed today. (called automatically by latest version of UBIScheme)
	 * @param _claimer the user to update
	 */
	function updateClaim(address _claimer) external {
		IUBIScheme ubi = IUBIScheme(nameService.getAddress("UBISCHEME"));
		require(
			ubi.hasClaimed(_claimer),
			"ClaimersDistribution: didn't claim today"
		);
		require(
			ubi.currentDay() * 1 days + ubi.periodStart() >
				lastUpdated[_claimer],
			"ClaimersDistribution: already updated"
		);
		_updateMonth();

		lastUpdated[_claimer] = block.timestamp;
		months[currentMonth].claims[_claimer] += 1;
		months[currentMonth].totalClaims += 1;

		uint256 prevMonth = currentMonth - 1;
		if (lastMonthClaimed[_claimer] >= prevMonth) return;
		claimReputation(_claimer);
	}

	/**
	 * @dev helper func
	 * @return number of UBI claims user performed this month
	 */
	function getMonthClaims(address _claimer) public view returns (uint256) {
		return months[currentMonth].claims[_claimer];
	}

	/**
	 * @dev mints reputation to user according to his share in last month claims
	 * @param _claimer the user to distribute reputation to
	 */
	function claimReputation(address _claimer) public {
		uint256 prevMonth = currentMonth - 1;
		uint256 monthlyDist = months[prevMonth].monthlyDistribution;
		uint256 userClaims = months[prevMonth].claims[_claimer];
		if (
			lastMonthClaimed[_claimer] < prevMonth &&
			userClaims > 0 &&
			monthlyDist > 0
		) {
			lastMonthClaimed[_claimer] = prevMonth;
			uint256 userShare = (monthlyDist * userClaims) /
				months[prevMonth].totalClaims;
			if (userShare > 0) {
				GReputation grep = GReputation(
					nameService.getAddress("REPUTATION")
				);
				grep.mint(_claimer, userShare);
				emit ReputationEarned(
					_claimer,
					prevMonth,
					userClaims,
					userShare
				);
			}
		}
	}
}

File 6 of 22 : UUPSUpgradeable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../ERC1967/ERC1967UpgradeUpgradeable.sol";
import "./Initializable.sol";

/**
 * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
 * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
 *
 * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
 * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
 * `UUPSUpgradeable` with a custom implementation of upgrades.
 *
 * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
 *
 * _Available since v4.1._
 */
abstract contract UUPSUpgradeable is Initializable, ERC1967UpgradeUpgradeable {
    function __UUPSUpgradeable_init() internal initializer {
        __ERC1967Upgrade_init_unchained();
        __UUPSUpgradeable_init_unchained();
    }

    function __UUPSUpgradeable_init_unchained() internal initializer {
    }
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
    address private immutable __self = address(this);

    /**
     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
     * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
     * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
     * fail.
     */
    modifier onlyProxy() {
        require(address(this) != __self, "Function must be called through delegatecall");
        require(_getImplementation() == __self, "Function must be called through active proxy");
        _;
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     */
    function upgradeTo(address newImplementation) external virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallSecure(newImplementation, new bytes(0), false);
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
     * encoded in `data`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) external payable virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallSecure(newImplementation, data, true);
    }

    /**
     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
     * {upgradeTo} and {upgradeToAndCall}.
     *
     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
     *
     * ```solidity
     * function _authorizeUpgrade(address) internal override onlyOwner {}
     * ```
     */
    function _authorizeUpgrade(address newImplementation) internal virtual;
    uint256[50] private __gap;
}

File 7 of 22 : Initializable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @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.
 */
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() {
        require(_initializing || !_initialized, "Initializable: contract is already initialized");

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

        _;

        if (isTopLevelCall) {
            _initializing = false;
        }
    }
}

File 8 of 22 : DAOContract.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

import "../DAOStackInterfaces.sol";
import "../Interfaces.sol";

/**
@title Simple contract that keeps DAO contracts registery
*/

contract DAOContract {
	Controller public dao;

	address public avatar;

	INameService public nameService;

	function _onlyAvatar() internal view {
		require(
			address(dao.avatar()) == msg.sender,
			"only avatar can call this method"
		);
	}

	function setDAO(INameService _ns) internal {
		nameService = _ns;
		updateAvatar();
	}

	function updateAvatar() public {
		dao = Controller(nameService.getAddress("CONTROLLER"));
		avatar = dao.avatar();
	}

	function nativeToken() public view returns (IGoodDollar) {
		return IGoodDollar(nameService.getAddress("GOODDOLLAR"));
	}

	uint256[50] private gap;
}

File 9 of 22 : ERC1967UpgradeUpgradeable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.2;

import "../beacon/IBeaconUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/StorageSlotUpgradeable.sol";
import "../utils/Initializable.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 *
 * @custom:oz-upgrades-unsafe-allow delegatecall
 */
abstract contract ERC1967UpgradeUpgradeable is Initializable {
    function __ERC1967Upgrade_init() internal initializer {
        __ERC1967Upgrade_init_unchained();
    }

    function __ERC1967Upgrade_init_unchained() internal initializer {
    }
    // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;

    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Returns the current implementation address.
     */
    function _getImplementation() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract");
        StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Perform implementation upgrade
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }

    /**
     * @dev Perform implementation upgrade with additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCall(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        _upgradeTo(newImplementation);
        if (data.length > 0 || forceCall) {
            _functionDelegateCall(newImplementation, data);
        }
    }

    /**
     * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCallSecure(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        address oldImplementation = _getImplementation();

        // Initial upgrade and setup call
        _setImplementation(newImplementation);
        if (data.length > 0 || forceCall) {
            _functionDelegateCall(newImplementation, data);
        }

        // Perform rollback test if not already in progress
        StorageSlotUpgradeable.BooleanSlot storage rollbackTesting = StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT);
        if (!rollbackTesting.value) {
            // Trigger rollback using upgradeTo from the new implementation
            rollbackTesting.value = true;
            _functionDelegateCall(
                newImplementation,
                abi.encodeWithSignature("upgradeTo(address)", oldImplementation)
            );
            rollbackTesting.value = false;
            // Check rollback was effective
            require(oldImplementation == _getImplementation(), "ERC1967Upgrade: upgrade breaks further upgrades");
            // Finally reset to the new implementation and log the upgrade
            _upgradeTo(newImplementation);
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Returns the current admin.
     */
    function _getAdmin() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        require(newAdmin != address(0), "ERC1967: new admin is the zero address");
        StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     */
    function _changeAdmin(address newAdmin) internal {
        emit AdminChanged(_getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Emitted when the beacon is upgraded.
     */
    event BeaconUpgraded(address indexed beacon);

    /**
     * @dev Returns the current beacon.
     */
    function _getBeacon() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract");
        require(
            AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()),
            "ERC1967: beacon implementation is not a contract"
        );
        StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;
    }

    /**
     * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
     * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
     *
     * Emits a {BeaconUpgraded} event.
     */
    function _upgradeBeaconToAndCall(
        address newBeacon,
        bytes memory data,
        bool forceCall
    ) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);
        if (data.length > 0 || forceCall) {
            _functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data);
        }
    }

    /**
     * @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) private returns (bytes memory) {
        require(AddressUpgradeable.isContract(target), "Address: delegate call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed");
    }
    uint256[50] private __gap;
}

File 10 of 22 : IBeaconUpgradeable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeaconUpgradeable {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

File 11 of 22 : AddressUpgradeable.sol
// SPDX-License-Identifier: MIT

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);
            }
        }
    }
}

File 12 of 22 : StorageSlotUpgradeable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlotUpgradeable {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        assembly {
            r.slot := slot
        }
    }
}

File 13 of 22 : DAOStackInterfaces.sol
// SPDX-License-Identifier: MIT

pragma solidity >=0.8.0;

interface Avatar {
	function nativeToken() external view returns (address);

	function nativeReputation() external view returns (address);

	function owner() external view returns (address);
}

interface Controller {
	event RegisterScheme(address indexed _sender, address indexed _scheme);
	event UnregisterScheme(address indexed _sender, address indexed _scheme);

	function genericCall(
		address _contract,
		bytes calldata _data,
		address _avatar,
		uint256 _value
	) external returns (bool, bytes memory);

	function avatar() external view returns (address);

	function unregisterScheme(address _scheme, address _avatar)
		external
		returns (bool);

	function unregisterSelf(address _avatar) external returns (bool);

	function registerScheme(
		address _scheme,
		bytes32 _paramsHash,
		bytes4 _permissions,
		address _avatar
	) external returns (bool);

	function isSchemeRegistered(address _scheme, address _avatar)
		external
		view
		returns (bool);

	function getSchemePermissions(address _scheme, address _avatar)
		external
		view
		returns (bytes4);

	function addGlobalConstraint(
		address _constraint,
		bytes32 _paramHash,
		address _avatar
	) external returns (bool);

	function mintTokens(
		uint256 _amount,
		address _beneficiary,
		address _avatar
	) external returns (bool);

	function externalTokenTransfer(
		address _token,
		address _recipient,
		uint256 _amount,
		address _avatar
	) external returns (bool);

	function sendEther(
		uint256 _amountInWei,
		address payable _to,
		address _avatar
	) external returns (bool);
}

interface GlobalConstraintInterface {
	enum CallPhase {
		Pre,
		Post,
		PreAndPost
	}

	function pre(
		address _scheme,
		bytes32 _params,
		bytes32 _method
	) external returns (bool);

	/**
	 * @dev when return if this globalConstraints is pre, post or both.
	 * @return CallPhase enum indication  Pre, Post or PreAndPost.
	 */
	function when() external returns (CallPhase);
}

interface ReputationInterface {
	function balanceOf(address _user) external view returns (uint256);

	function balanceOfAt(address _user, uint256 _blockNumber)
		external
		view
		returns (uint256);

	function getVotes(address _user) external view returns (uint256);

	function getVotesAt(
		address _user,
		bool _global,
		uint256 _blockNumber
	) external view returns (uint256);

	function totalSupply() external view returns (uint256);

	function totalSupplyAt(uint256 _blockNumber)
		external
		view
		returns (uint256);

	function delegateOf(address _user) external returns (address);
}

interface SchemeRegistrar {
	function proposeScheme(
		Avatar _avatar,
		address _scheme,
		bytes32 _parametersHash,
		bytes4 _permissions,
		string memory _descriptionHash
	) external returns (bytes32);

	event NewSchemeProposal(
		address indexed _avatar,
		bytes32 indexed _proposalId,
		address indexed _intVoteInterface,
		address _scheme,
		bytes32 _parametersHash,
		bytes4 _permissions,
		string _descriptionHash
	);
}

interface IntVoteInterface {
	event NewProposal(
		bytes32 indexed _proposalId,
		address indexed _organization,
		uint256 _numOfChoices,
		address _proposer,
		bytes32 _paramsHash
	);

	event ExecuteProposal(
		bytes32 indexed _proposalId,
		address indexed _organization,
		uint256 _decision,
		uint256 _totalReputation
	);

	event VoteProposal(
		bytes32 indexed _proposalId,
		address indexed _organization,
		address indexed _voter,
		uint256 _vote,
		uint256 _reputation
	);

	event CancelProposal(
		bytes32 indexed _proposalId,
		address indexed _organization
	);
	event CancelVoting(
		bytes32 indexed _proposalId,
		address indexed _organization,
		address indexed _voter
	);

	/**
	 * @dev register a new proposal with the given parameters. Every proposal has a unique ID which is being
	 * generated by calculating keccak256 of a incremented counter.
	 * @param _numOfChoices number of voting choices
	 * @param _proposalParameters defines the parameters of the voting machine used for this proposal
	 * @param _proposer address
	 * @param _organization address - if this address is zero the msg.sender will be used as the organization address.
	 * @return proposal's id.
	 */
	function propose(
		uint256 _numOfChoices,
		bytes32 _proposalParameters,
		address _proposer,
		address _organization
	) external returns (bytes32);

	function vote(
		bytes32 _proposalId,
		uint256 _vote,
		uint256 _rep,
		address _voter
	) external returns (bool);

	function cancelVote(bytes32 _proposalId) external;

	function getNumberOfChoices(bytes32 _proposalId)
		external
		view
		returns (uint256);

	function isVotable(bytes32 _proposalId) external view returns (bool);

	/**
	 * @dev voteStatus returns the reputation voted for a proposal for a specific voting choice.
	 * @param _proposalId the ID of the proposal
	 * @param _choice the index in the
	 * @return voted reputation for the given choice
	 */
	function voteStatus(bytes32 _proposalId, uint256 _choice)
		external
		view
		returns (uint256);

	/**
	 * @dev isAbstainAllow returns if the voting machine allow abstain (0)
	 * @return bool true or false
	 */
	function isAbstainAllow() external pure returns (bool);

	/**
     * @dev getAllowedRangeOfChoices returns the allowed range of choices for a voting machine.
     * @return min - minimum number of choices
               max - maximum number of choices
     */
	function getAllowedRangeOfChoices()
		external
		pure
		returns (uint256 min, uint256 max);
}

File 14 of 22 : DataTypes.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

library DataTypes {
	// refer to the whitepaper, section 1.1 basic concepts for a formal description of these properties.
	struct ReserveData {
		//stores the reserve configuration
		ReserveConfigurationMap configuration;
		//the liquidity index. Expressed in ray
		uint128 liquidityIndex;
		//variable borrow index. Expressed in ray
		uint128 variableBorrowIndex;
		//the current supply rate. Expressed in ray
		uint128 currentLiquidityRate;
		//the current variable borrow rate. Expressed in ray
		uint128 currentVariableBorrowRate;
		//the current stable borrow rate. Expressed in ray
		uint128 currentStableBorrowRate;
		uint40 lastUpdateTimestamp;
		//tokens addresses
		address aTokenAddress;
		address stableDebtTokenAddress;
		address variableDebtTokenAddress;
		//address of the interest rate strategy
		address interestRateStrategyAddress;
		//the id of the reserve. Represents the position in the list of the active reserves
		uint8 id;
	}

	struct ReserveConfigurationMap {
		//bit 0-15: LTV
		//bit 16-31: Liq. threshold
		//bit 32-47: Liq. bonus
		//bit 48-55: Decimals
		//bit 56: Reserve is active
		//bit 57: reserve is frozen
		//bit 58: borrowing is enabled
		//bit 59: stable rate borrowing enabled
		//bit 60-63: reserved
		//bit 64-79: reserve factor
		uint256 data;
	}
	enum InterestRateMode { NONE, STABLE, VARIABLE }
}

File 15 of 22 : GReputation.sol
// SPDX-License-Identifier: MIT
pragma solidity >=0.8.0;

import "./Reputation.sol";
import "../Interfaces.sol";

/**
 * @title GReputation extends Reputation with delegation and cross blockchain merkle states
 * @dev NOTICE: this breaks DAOStack nativeReputation usage, since it is not possiible to upgrade
 * the original nativeReputation token. it means you can no longer rely on avatar.nativeReputation() or controller.nativeReputation()
 * to return the current reputation token.
 * The DAO avatar will be the owner of this reputation token and not the Controller.
 * Minting by the DAO will be done using controller.genericCall and not via controller.mintReputation
 */
contract GReputation is Reputation {
	bytes32 public constant ROOT_STATE = keccak256("rootState");

	/// @notice The EIP-712 typehash for the contract's domain
	bytes32 public constant DOMAIN_TYPEHASH =
		keccak256(
			"EIP712Domain(string name,uint256 chainId,address verifyingContract)"
		);

	/// @notice The EIP-712 typehash for the delegation struct used by the contract
	bytes32 public constant DELEGATION_TYPEHASH =
		keccak256("Delegation(address delegate,uint256 nonce,uint256 expiry)");

	/// @notice describe a single blockchain states
	/// @param stateHash the hash with the reputation state
	/// @param hashType the type of hash. currently just 0 = merkle tree root hash
	/// @param totalSupply the totalSupply at the blockchain
	/// @param blockNumber the effective blocknumber
	struct BlockchainState {
		bytes32 stateHash;
		uint256 hashType;
		uint256 totalSupply;
		uint256 blockNumber;
		uint256[5] __reserevedSpace;
	}

	/// @notice A record of states for signing / validating signatures
	mapping(address => uint256) public nonces;

	/// @notice mapping from blockchain id hash to list of states
	mapping(bytes32 => BlockchainState[]) public blockchainStates;

	/// @notice mapping from stateHash to the user balance can be >0 only after supplying state proof
	mapping(bytes32 => mapping(address => uint256)) public stateHashBalances;

	/// @notice list of blockchains having a statehash for easy iteration
	bytes32[] public activeBlockchains;

	/// @notice keep map of user -> delegate
	mapping(address => address) public delegates;

	/// @notice map of user non delegated + delegated votes to user. this is used for actual voting
	mapping(address => uint256[]) public activeVotes;

	/// @notice keep map of address -> reputation recipient, an address can set that its earned rep will go to another address
	mapping(address => address) public reputationRecipients;

	/// @notice An event thats emitted when a delegate account's vote balance changes
	event DelegateVotesChanged(
		address indexed delegate,
		address indexed delegator,
		uint256 previousBalance,
		uint256 newBalance
	);

	event StateHash(string blockchain, bytes32 merkleRoot, uint256 totalSupply);

	event StateHashProof(
		string blockchain,
		address indexed user,
		uint256 repBalance
	);

	/**
	 * @dev initialize
	 */
	function initialize(
		INameService _ns,
		string calldata _stateId,
		bytes32 _stateHash,
		uint256 _totalSupply
	) external initializer {
		__Reputation_init(_ns);
		if (_totalSupply > 0)
			_setBlockchainStateHash(_stateId, _stateHash, _totalSupply);
	}

	function updateDAO(INameService _ns) public {
		if (address(nameService) == address(0)) {
			setDAO(_ns);
			_setupRole(DEFAULT_ADMIN_ROLE, address(avatar));
			_setupRole(MINTER_ROLE, address(avatar));
		}
	}

	function _canMint() internal view override {
		require(
			_msgSender() == nameService.getAddress("GDAO_CLAIMERS") ||
				_msgSender() == nameService.getAddress("GDAO_STAKING") ||
				_msgSender() == nameService.getAddress("GDAO_STAKERS") ||
				hasRole(MINTER_ROLE, _msgSender()),
			"GReputation: need minter role or be GDAO contract"
		);
	}

	/// @notice internal function that overrides Reputation.sol with consideration to delegation
	/// @param _user the address to mint for
	/// @param _amount the amount of rep to mint
	/// @return the actual amount minted
	function _mint(address _user, uint256 _amount)
		internal
		override
		returns (uint256)
	{
		address repTarget = reputationRecipients[_user];
		repTarget = repTarget != address(0) ? repTarget : _user;

		super._mint(repTarget, _amount);

		//set self as initial delegator
		address delegator = delegates[repTarget];
		if (delegator == address(0)) {
			delegates[repTarget] = repTarget;
			delegator = repTarget;
		}
		uint256 previousVotes = getVotesAt(delegator, false, block.number);

		_updateDelegateVotes(
			delegator,
			repTarget,
			previousVotes,
			previousVotes + _amount
		);
		return _amount;
	}

	/// @notice internal function that overrides Reputation.sol with consideration to delegation
	/// @param _user the address to burn from
	/// @param _amount the amount of rep to mint
	/// @return the actual amount burned
	function _burn(address _user, uint256 _amount)
		internal
		override
		returns (uint256)
	{
		uint256 amountBurned = super._burn(_user, _amount);
		address delegator = delegates[_user];
		delegator = delegator != address(0) ? delegator : _user;
		delegates[_user] = delegator;

		uint256 previousVotes = getVotesAt(delegator, false, block.number);

		_updateDelegateVotes(
			delegator,
			_user,
			previousVotes,
			previousVotes - amountBurned
		);

		return amountBurned;
	}

	/// @notice sets the state hash of a blockchain, can only be called by owner
	/// @param _id the string name of the blockchain (will be hashed to produce byte32 id)
	/// @param _hash the state hash
	/// @param _totalSupply total supply of reputation on the specific blockchain
	function setBlockchainStateHash(
		string memory _id,
		bytes32 _hash,
		uint256 _totalSupply
	) public {
		_onlyAvatar();
		_setBlockchainStateHash(_id, _hash, _totalSupply);
	}

	/// @notice sets the state hash of a blockchain, can only be called by owner
	/// @param _id the string name of the blockchain (will be hashed to produce byte32 id)
	/// @param _hash the state hash
	/// @param _totalSupply total supply of reputation on the specific blockchain
	function _setBlockchainStateHash(
		string memory _id,
		bytes32 _hash,
		uint256 _totalSupply
	) internal {
		bytes32 idHash = keccak256(bytes(_id));

		//dont consider rootState as blockchain,  it is a special state hash
		bool isRootState = idHash == ROOT_STATE;
		require(
			!isRootState || totalSupplyLocalAt(block.number) == 0,
			"rootState already created"
		);
		if (isRootState) {
			updateValueAtNow(totalSupplyHistory, _totalSupply);
		}
		uint256 i = 0;
		for (; !isRootState && i < activeBlockchains.length; i++) {
			if (activeBlockchains[i] == idHash) break;
		}

		//if new blockchain
		if (!isRootState && i == activeBlockchains.length) {
			activeBlockchains.push(idHash);
		}

		BlockchainState memory state;
		state.stateHash = _hash;
		state.totalSupply = _totalSupply;
		state.blockNumber = block.number;
		blockchainStates[idHash].push(state);

		emit StateHash(_id, _hash, _totalSupply);
	}

	/// @notice get the number of active votes a user holds after delegation (vs the basic balance of reputation he holds)
	/// @param _user the user to get active votes for
	/// @param _global wether to include reputation from other blockchains
	/// @param _blockNumber get votes state at specific block
	/// @return the number of votes
	function getVotesAt(
		address _user,
		bool _global,
		uint256 _blockNumber
	) public view returns (uint256) {
		uint256 startingBalance = getValueAt(activeVotes[_user], _blockNumber);

		if (_global) {
			for (uint256 i = 0; i < activeBlockchains.length; i++) {
				startingBalance += getVotesAtBlockchain(
					activeBlockchains[i],
					_user,
					_blockNumber
				);
			}
		}

		return startingBalance;
	}

	/**
	 * @notice returns aggregated active votes in all blockchains and delegated
	 * @param _user the user to get active votes for
	 * @return the number of votes
	 */
	function getVotes(address _user) public view returns (uint256) {
		return getVotesAt(_user, true, block.number);
	}

	/**
	 * @notice same as getVotes, be compatible with metamask
	 */
	function balanceOf(address _user) public view returns (uint256 balance) {
		return getVotesAt(_user, block.number);
	}

	/**
	 same as getVotes be compatible with compound 
	 */
	function getCurrentVotes(address _user) public view returns (uint256) {
		return getVotesAt(_user, true, block.number);
	}

	function getPriorVotes(address _user, uint256 _block)
		public
		view
		returns (uint256)
	{
		return getVotesAt(_user, true, _block);
	}

	/**
	 * @notice returns aggregated active votes in all blockchains and delegated at specific block
	 * @param _user user to get active votes for
	 * @param _blockNumber get votes state at specific block
	 * @return the number of votes
	 */
	function getVotesAt(address _user, uint256 _blockNumber)
		public
		view
		returns (uint256)
	{
		return getVotesAt(_user, true, _blockNumber);
	}

	/**
	 * @notice returns total supply in current blockchain
	 * @param _blockNumber get total supply at specific block
	 * @return the totaly supply
	 */
	function totalSupplyLocal(uint256 _blockNumber)
		public
		view
		returns (uint256)
	{
		return totalSupplyLocalAt(_blockNumber);
	}

	/**
	 * @notice returns total supply in all blockchain aggregated
	 * @param _blockNumber get total supply at specific block
	 * @return the totaly supply
	 */
	function totalSupplyAt(uint256 _blockNumber) public view returns (uint256) {
		uint256 startingSupply = totalSupplyLocalAt(_blockNumber);
		for (uint256 i = 0; i < activeBlockchains.length; i++) {
			startingSupply += totalSupplyAtBlockchain(
				activeBlockchains[i],
				_blockNumber
			);
		}
		return startingSupply;
	}

	/// @dev This function makes it easy to get the total number of reputation
	/// @return The total number of reputation
	function totalSupply() public view returns (uint256) {
		return totalSupplyAt(block.number);
	}

	/// @notice get the number of active votes a user holds after delegation in specific blockchain
	/// @param _id the keccak hash of the blockchain string id
	/// @param _user the user to get active votes for
	/// @param _blockNumber get votes state at specific block
	/// @return the number of votes
	function getVotesAtBlockchain(
		bytes32 _id,
		address _user,
		uint256 _blockNumber
	) public view returns (uint256) {
		BlockchainState[] storage states = blockchainStates[_id];
		int256 i = int256(states.length);

		if (i == 0) return 0;
		BlockchainState storage state = states[uint256(i - 1)];
		for (i = i - 1; i >= 0; i--) {
			if (state.blockNumber <= _blockNumber) break;
			state = states[uint256(i - 1)];
		}
		if (i < 0) return 0;

		return stateHashBalances[state.stateHash][_user];
	}

	/**
	 * @notice returns total supply in a specific blockchain
	 * @param _blockNumber get total supply at specific block
	 * @return the totaly supply
	 */
	function totalSupplyAtBlockchain(bytes32 _id, uint256 _blockNumber)
		public
		view
		returns (uint256)
	{
		BlockchainState[] storage states = blockchainStates[_id];
		int256 i;
		if (states.length == 0) return 0;
		for (i = int256(states.length - 1); i >= 0; i--) {
			if (states[uint256(i)].blockNumber <= _blockNumber) break;
		}
		if (i < 0) return 0;

		BlockchainState storage state = states[uint256(i)];
		return state.totalSupply;
	}

	/**
	 * @notice prove user balance in a specific blockchain state hash
	 * @dev "rootState" is a special state that can be supplied once, and actually mints reputation on the current blockchain
	 * we use non sorted merkle tree, as sorting while preparing merkle tree is heavy
	 * @param _id the string id of the blockchain we supply proof for
	 * @param _user the user to prove his balance
	 * @param _balance the balance we are prooving
	 * @param _proof array of byte32 with proof data (currently merkle tree path)
 	 * @param _nodeIndex index of node in the tree (for unsorted merkle tree proof)

	 * @return true if proof is valid
	 */
	function proveBalanceOfAtBlockchain(
		string memory _id,
		address _user,
		uint256 _balance,
		bytes32[] memory _proof,
		uint256 _nodeIndex
	) public returns (bool) {
		bytes32 idHash = keccak256(bytes(_id));
		require(
			blockchainStates[idHash].length > 0,
			"no state found for given _id"
		);
		bytes32 stateHash = blockchainStates[idHash][
			blockchainStates[idHash].length - 1
		].stateHash;

		//this is specifically important for rootState that should update real balance only once
		require(
			stateHashBalances[stateHash][_user] == 0,
			"stateHash already proved"
		);

		bytes32 leafHash = keccak256(abi.encode(_user, _balance));
		bool isProofValid = checkProofOrdered(
			_proof,
			stateHash,
			leafHash,
			_nodeIndex
		);

		require(isProofValid, "invalid merkle proof");

		//if initiial state then set real balance
		if (idHash == ROOT_STATE) {
			uint256 curTotalSupply = totalSupplyLocalAt(block.number);
			_mint(_user, _balance);
			updateValueAtNow(totalSupplyHistory, curTotalSupply); // we undo the totalsupply, as we alredy set the totalsupply of the airdrop
		}

		//if proof is valid then set balances
		stateHashBalances[stateHash][_user] = _balance;

		emit StateHashProof(_id, _user, _balance);
		return true;
	}

	/// @notice returns current delegate of _user
	/// @param _user the delegatee
	/// @return the address of the delegate (can be _user  if no delegate or 0x0 if _user doesnt exists)
	function delegateOf(address _user) public view returns (address) {
		return delegates[_user];
	}

	/// @notice delegate votes to another user
	/// @param _delegate the recipient of votes
	function delegateTo(address _delegate) public {
		return _delegateTo(_msgSender(), _delegate);
	}

	/// @notice cancel user delegation
	/// @dev makes user his own delegate
	function undelegate() public {
		return _delegateTo(_msgSender(), _msgSender());
	}

	/**
	 * @notice Delegates votes from signatory to `delegate`
	 * @param _delegate The address to delegate votes to
	 * @param _nonce The contract state required to match the signature
	 * @param _expiry The time at which to expire the signature
	 * @param _v The recovery byte of the signature
	 * @param _r Half of the ECDSA signature pair
	 * @param _s Half of the ECDSA signature pair
	 */
	function delegateBySig(
		address _delegate,
		uint256 _nonce,
		uint256 _expiry,
		uint8 _v,
		bytes32 _r,
		bytes32 _s
	) public {
		bytes32 domainSeparator = keccak256(
			abi.encode(
				DOMAIN_TYPEHASH,
				keccak256(bytes(name)),
				getChainId(),
				address(this)
			)
		);
		bytes32 structHash = keccak256(
			abi.encode(DELEGATION_TYPEHASH, _delegate, _nonce, _expiry)
		);
		bytes32 digest = keccak256(
			abi.encodePacked("\x19\x01", domainSeparator, structHash)
		);
		address signatory = ecrecover(digest, _v, _r, _s);
		require(
			signatory != address(0),
			"GReputation::delegateBySig: invalid signature"
		);
		require(
			_nonce == nonces[signatory]++,
			"GReputation::delegateBySig: invalid nonce"
		);
		require(
			block.timestamp <= _expiry,
			"GReputation::delegateBySig: signature expired"
		);
		return _delegateTo(signatory, _delegate);
	}

	/// @notice internal function to delegate votes to another user
	/// @param _user the source of votes (delegator)
	/// @param _delegate the recipient of votes
	function _delegateTo(address _user, address _delegate) internal {
		require(
			_delegate != address(0),
			"GReputation::delegate can't delegate to null address"
		);

		address curDelegator = delegates[_user];
		require(curDelegator != _delegate, "already delegating to delegator");

		delegates[_user] = _delegate;

		// remove votes from current delegator
		uint256 coreBalance = balanceOfLocalAt(_user, block.number);
		//redundant check - should not be possible to have address 0 as delegator
		if (curDelegator != address(0)) {
			uint256 removeVotes = getVotesAt(curDelegator, false, block.number);
			_updateDelegateVotes(
				curDelegator,
				_user,
				removeVotes,
				removeVotes - coreBalance
			);
		}

		//move votes to new delegator
		uint256 addVotes = getVotesAt(_delegate, false, block.number);
		_updateDelegateVotes(_delegate, _user, addVotes, addVotes + coreBalance);
	}

	/// @notice internal function to update delegated votes, emits event with changes
	/// @param _delegate the delegate whose record we are updating
	/// @param _delegator the delegator
	/// @param _oldVotes the delegate previous votes
	/// @param _newVotes the delegate votes after the change
	function _updateDelegateVotes(
		address _delegate,
		address _delegator,
		uint256 _oldVotes,
		uint256 _newVotes
	) internal {
		updateValueAtNow(activeVotes[_delegate], _newVotes);
		emit DelegateVotesChanged(_delegate, _delegator, _oldVotes, _newVotes);
	}

	// from StorJ -- https://github.com/nginnever/storj-audit-verifier/blob/master/contracts/MerkleVerifyv3.sol
	/**
	 * @dev non sorted merkle tree proof check
	 */
	function checkProofOrdered(
		bytes32[] memory _proof,
		bytes32 _root,
		bytes32 _hash,
		uint256 _index
	) public pure returns (bool) {
		// use the index to determine the node ordering
		// index ranges 1 to n

		bytes32 proofElement;
		bytes32 computedHash = _hash;
		uint256 remaining;

		for (uint256 j = 0; j < _proof.length; j++) {
			proofElement = _proof[j];

			// calculate remaining elements in proof
			remaining = _proof.length - j;

			// we don't assume that the tree is padded to a power of 2
			// if the index is odd then the proof will start with a hash at a higher
			// layer, so we have to adjust the index to be the index at that layer
			while (remaining > 0 && _index % 2 == 1 && _index > 2**remaining) {
				_index = _index / 2 + 1;
			}

			if (_index % 2 == 0) {
				computedHash = keccak256(abi.encodePacked(proofElement, computedHash));
				_index = _index / 2;
			} else {
				computedHash = keccak256(abi.encodePacked(computedHash, proofElement));
				_index = _index / 2 + 1;
			}
		}

		return computedHash == _root;
	}

	/// @notice helper function to get current chain id
	/// @return chain id
	function getChainId() internal view returns (uint256) {
		uint256 chainId;
		assembly {
			chainId := chainid()
		}
		return chainId;
	}

	function setReputationRecipient(address _target) public {
		reputationRecipients[msg.sender] = _target;
	}
}

File 16 of 22 : Reputation.sol
// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.8.0;

import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";

import "../utils/DAOUpgradeableContract.sol";

/**
 * based on https://github.com/daostack/infra/blob/60a79a1be02942174e21156c3c9655a7f0695dbd/contracts/Reputation.sol
 * @title Reputation system
 * @dev A DAO has Reputation System which allows peers to rate other peers in order to build trust .
 * A reputation is used to assign influence measure to a DAO'S peers.
 * Reputation is similar to regular tokens but with one crucial difference: It is non-transferable.
 * The Reputation contract maintain a map of address to reputation value.
 * It provides an only minter role functions to mint and burn reputation _to (or _from) a specific address.
 */
contract Reputation is DAOUpgradeableContract, AccessControlUpgradeable {
	bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");

	string public name;
	string public symbol;

	uint8 public decimals; //Number of decimals of the smallest unit
	// Event indicating minting of reputation to an address.
	event Mint(address indexed _to, uint256 _amount);
	// Event indicating burning of reputation for an address.
	event Burn(address indexed _from, uint256 _amount);
	uint256 private constant ZERO_HALF_256 = 0xffffffffffffffffffffffffffffffff;

	/// @dev `Checkpoint` is the structure that attaches a block number to a
	///  given value, the block number attached is the one that last changed the
	///  value
	//Checkpoint is uint256 :
	// bits 0-127 `fromBlock` is the block number that the value was generated from
	// bits 128-255 `value` is the amount of reputation at a specific block number

	// `balances` is the map that tracks the balance of each address, in this
	//  contract when the balance changes the block number that the change
	//  occurred is also included in the map
	mapping(address => uint256[]) public balances;

	// Tracks the history of the `totalSupply` of the reputation
	uint256[] public totalSupplyHistory;

	/**
	 * @dev initialize
	 */
	function initialize(INameService _ns) public initializer {
		__Reputation_init(_ns);
	}

	function __Reputation_init(INameService _ns) internal {
		decimals = 18;
		name = "GoodDAO";
		symbol = "GOOD";
		__Context_init_unchained();
		__ERC165_init_unchained();
		__AccessControl_init_unchained();

		if (address(_ns) != address(0)) {
			setDAO(_ns);
			_setupRole(DEFAULT_ADMIN_ROLE, address(avatar));
			_setupRole(MINTER_ROLE, address(avatar));
		}
	}

	function _canMint() internal view virtual {
		require(hasRole(MINTER_ROLE, _msgSender()), "Reputation: need minter role");
	}

	/// @notice Generates `_amount` reputation that are assigned to `_owner`
	/// @param _user The address that will be assigned the new reputation
	/// @param _amount The quantity of reputation generated
	/// @return True if the reputation are generated correctly
	function mint(address _user, uint256 _amount) public returns (bool) {
		_canMint();
		_mint(_user, _amount);
		return true;
	}

	function _mint(address _user, uint256 _amount)
		internal
		virtual
		returns (uint256)
	{
		uint256 curTotalSupply = totalSupplyLocalAt(block.number);
		uint256 previousBalanceTo = balanceOfLocalAt(_user, block.number);

		updateValueAtNow(totalSupplyHistory, curTotalSupply + _amount);
		updateValueAtNow(balances[_user], previousBalanceTo + _amount);
		emit Mint(_user, _amount);
		return _amount;
	}

	/// @notice Burns `_amount` reputation from `_owner`
	/// @param _user The address that will lose the reputation
	/// @param _amount The quantity of reputation to burn
	/// @return True if the reputation are burned correctly
	function burn(address _user, uint256 _amount) public returns (bool) {
		//user can burn his own rep other wise we check _canMint
		if (_user != _msgSender()) _canMint();
		_burn(_user, _amount);
		return true;
	}

	function _burn(address _user, uint256 _amount)
		internal
		virtual
		returns (uint256)
	{
		uint256 curTotalSupply = totalSupplyLocalAt(block.number);
		uint256 amountBurned = _amount;
		uint256 previousBalanceFrom = balanceOfLocalAt(_user, block.number);
		if (previousBalanceFrom < amountBurned) {
			amountBurned = previousBalanceFrom;
		}
		updateValueAtNow(totalSupplyHistory, curTotalSupply - amountBurned);
		updateValueAtNow(balances[_user], previousBalanceFrom - amountBurned);
		emit Burn(_user, amountBurned);
		return amountBurned;
	}

	function balanceOfLocal(address _owner) public view returns (uint256) {
		return balanceOfLocalAt(_owner, block.number);
	}

	/// @dev Queries the balance of `_owner` at a specific `_blockNumber`
	/// @param _owner The address from which the balance will be retrieved
	/// @param _blockNumber The block number when the balance is queried
	/// @return The balance at `_blockNumber`
	function balanceOfLocalAt(address _owner, uint256 _blockNumber)
		public
		view
		virtual
		returns (uint256)
	{
		if (
			(balances[_owner].length == 0) ||
			(uint128(balances[_owner][0]) > _blockNumber)
		) {
			return 0;
			// This will return the expected balance during normal situations
		} else {
			return getValueAt(balances[_owner], _blockNumber);
		}
	}

	function totalSupplyLocal() public view virtual returns (uint256) {
		return totalSupplyLocalAt(block.number);
	}

	/// @notice Total amount of reputation at a specific `_blockNumber`.
	/// @param _blockNumber The block number when the totalSupply is queried
	/// @return The total amount of reputation at `_blockNumber`
	function totalSupplyLocalAt(uint256 _blockNumber)
		public
		view
		virtual
		returns (uint256)
	{
		if (
			(totalSupplyHistory.length == 0) ||
			(uint128(totalSupplyHistory[0]) > _blockNumber)
		) {
			return 0;
			// This will return the expected totalSupply during normal situations
		} else {
			return getValueAt(totalSupplyHistory, _blockNumber);
		}
	}

	////////////////
	// Internal helper functions to query and set a value in a snapshot array
	////////////////
	/// @dev `getValueAt` retrieves the number of reputation at a given block number
	/// @param checkpoints The history of values being queried
	/// @param _block The block number to retrieve the value at
	/// @return The number of reputation being queried
	function getValueAt(uint256[] storage checkpoints, uint256 _block)
		internal
		view
		returns (uint256)
	{
		uint256 len = checkpoints.length;
		if (len == 0) {
			return 0;
		}
		// Shortcut for the actual value
		uint256 cur = checkpoints[len - 1];
		if (_block >= uint128(cur)) {
			return cur >> 128;
		}

		if (_block < uint128(checkpoints[0])) {
			return 0;
		}

		// Binary search of the value in the array
		uint256 min = 0;
		uint256 max = len - 1;
		while (max > min) {
			uint256 mid = (max + min + 1) / 2;
			if (uint128(checkpoints[mid]) <= _block) {
				min = mid;
			} else {
				max = mid - 1;
			}
		}
		return checkpoints[min] >> 128;
	}

	/// @dev `updateValueAtNow` used to update the `balances` map and the
	///  `totalSupplyHistory`
	/// @param checkpoints The history of data being updated
	/// @param _value The new number of reputation
	function updateValueAtNow(uint256[] storage checkpoints, uint256 _value)
		internal
	{
		require(uint128(_value) == _value, "reputation overflow"); //check value is in the 128 bits bounderies
		if (
			(checkpoints.length == 0) ||
			(uint128(checkpoints[checkpoints.length - 1]) < block.number)
		) {
			checkpoints.push(uint256(uint128(block.number)) | (_value << 128));
		} else {
			checkpoints[checkpoints.length - 1] = uint256(
				(checkpoints[checkpoints.length - 1] & uint256(ZERO_HALF_256)) |
					(_value << 128)
			);
		}
	}
}

File 17 of 22 : AccessControlUpgradeable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IAccessControlUpgradeable.sol";
import "../utils/ContextUpgradeable.sol";
import "../utils/StringsUpgradeable.sol";
import "../utils/introspection/ERC165Upgradeable.sol";
import "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable {
    function __AccessControl_init() internal initializer {
        __Context_init_unchained();
        __ERC165_init_unchained();
        __AccessControl_init_unchained();
    }

    function __AccessControl_init_unchained() internal initializer {
    }
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role, _msgSender());
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControlUpgradeable).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        StringsUpgradeable.toHexString(uint160(account), 20),
                        " is missing role ",
                        StringsUpgradeable.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    function _grantRole(bytes32 role, address account) private {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    function _revokeRole(bytes32 role, address account) private {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
    uint256[49] private __gap;
}

File 18 of 22 : IAccessControlUpgradeable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControlUpgradeable {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

File 19 of 22 : ContextUpgradeable.sol
// SPDX-License-Identifier: MIT

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 initializer {
        __Context_init_unchained();
    }

    function __Context_init_unchained() internal initializer {
    }
    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;
}

File 20 of 22 : StringsUpgradeable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library StringsUpgradeable {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

File 21 of 22 : ERC165Upgradeable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
    function __ERC165_init() internal initializer {
        __ERC165_init_unchained();
    }

    function __ERC165_init_unchained() internal initializer {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165Upgradeable).interfaceId;
    }
    uint256[50] private __gap;
}

File 22 of 22 : IERC165Upgradeable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165Upgradeable {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 0
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract ABI

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