Token Aave MAI Vault

 

Overview ERC-721

Total Supply:
85 AVMVT

Holders:
84 addresses
Balance
0 AVMVT
0x0000000000000000000000000000000000000000
Loading
[ Download CSV Export  ] 
Loading
Loading

Click here to update the token ICO / general information
# Exchange Pair Price  24H Volume % Volume
Loading

Contract Source Code Verified (Exact Match)

Contract Name:
crosschainQiStablecoin

Compiler Version
v0.5.16+commit.9c3226ce

Optimization Enabled:
Yes with 2000 runs

Other Settings:
default evmVersion

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 24 : crosschainQiStablecoin.sol
pragma solidity 0.5.16;

import "@openzeppelin/contracts/ownership/Ownable.sol";
import "./crosschainStablecoin.sol";

contract crosschainQiStablecoin is crosschainStablecoin, Ownable {

    constructor(
        address ethPriceSourceAddress,
        uint256 minimumCollateralPercentage,
        string memory name,
        string memory symbol,
        address _mai,
        address _collateral,
        string memory baseURI
    ) crosschainStablecoin(
        ethPriceSourceAddress,
        minimumCollateralPercentage,
        name,
        symbol,
        _mai,
        _collateral,
        baseURI
    ) public {
        treasury=0;
    }

    function setGainRatio(uint256 _gainRatio) external onlyOwner() {
        gainRatio=_gainRatio;
    }

    function setDebtRatio(uint256 _debtRatio) external onlyOwner() {
        debtRatio=_debtRatio;
    }

    function changeEthPriceSource(address ethPriceSourceAddress) external onlyOwner() {
        ethPriceSource = PriceSource(ethPriceSourceAddress);
    }

    function setStabilityPool(address _pool) external onlyOwner() {
        stabilityPool = _pool;
    }

    function setMinCollateralRatio(uint256 minimumCollateralPercentage) external onlyOwner() {
        _minimumCollateralPercentage = minimumCollateralPercentage;
    }

    function setClosingFee(uint256 amount) external onlyOwner() {
        closingFee = amount;
    }

    function setOpeningFee(uint256 amount) external onlyOwner() {
        openingFee = amount;
    }

    function setTreasury(uint256 _treasury) external onlyOwner() {
        require(_exists(_treasury), "Vault does not exist");
        treasury = _treasury;
    }

    function burn(uint256 amountToken) public onlyOwner() {
        // Burn 
        mai.transfer(address(0), amountToken);
    }

    function setTokenURI(string memory _uri) public onlyOwner() {
        uri = _uri;
    }
}

File 2 of 24 : Ownable.sol
pragma solidity ^0.5.0;

import "../GSN/Context.sol";
/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
contract Ownable is Context {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(isOwner(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Returns true if the caller is the current owner.
     */
    function isOwner() public view returns (bool) {
        return _msgSender() == _owner;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public onlyOwner {
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     */
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

File 3 of 24 : crosschainStablecoin.sol
pragma solidity 0.5.16;

import "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20Detailed.sol";
import "@openzeppelin/contracts/utils/ReentrancyGuard.sol";
import "@openzeppelin/contracts/math/SafeMath.sol";

import "../PriceSource.sol";

import "../MyVaultV4.sol";

contract crosschainStablecoin is ReentrancyGuard, VaultNFTv4 {
    PriceSource public ethPriceSource;
    
    using SafeMath for uint256;
    using SafeERC20 for ERC20Detailed;

    uint256 public _minimumCollateralPercentage;

    uint256 public vaultCount;
    uint256 public closingFee;
    uint256 public openingFee;

    uint256 public treasury;
    uint256 public tokenPeg;

    mapping(uint256 => uint256) public vaultCollateral;
    mapping(uint256 => uint256) public vaultDebt;

    uint256 public debtRatio;
    uint256 public gainRatio;

    address public stabilityPool;

    ERC20Detailed public collateral;

    ERC20Detailed public mai;

    uint256 public priceSourceDecimals;
    uint256 public totalBorrowed;

    event CreateVault(uint256 vaultID, address creator);
    event DestroyVault(uint256 vaultID);
    event TransferVault(uint256 vaultID, address from, address to);
    event DepositCollateral(uint256 vaultID, uint256 amount);
    event WithdrawCollateral(uint256 vaultID, uint256 amount);
    event BorrowToken(uint256 vaultID, uint256 amount);
    event PayBackToken(uint256 vaultID, uint256 amount, uint256 closingFee);
    event LiquidateVault(uint256 vaultID, address owner, address buyer, uint256 debtRepaid, uint256 collateralLiquidated, uint256 closingFee);

    mapping(address => uint256) public maticDebt;

    constructor(
        address ethPriceSourceAddress,
        uint256 minimumCollateralPercentage,
        string memory name,
        string memory symbol,
        address _mai,
        address _collateral,
        string memory baseURI
    ) VaultNFTv4(name, symbol, baseURI) public {
        assert(ethPriceSourceAddress != address(0));
        assert(minimumCollateralPercentage != 0);
                        //  | decimals start here
        closingFee=50; // 0.5%
        openingFee=0; // 0.0%
        ethPriceSource = PriceSource(ethPriceSourceAddress);
        stabilityPool = address(0);
        tokenPeg = 100000000; // $1

        debtRatio = 2; // 1/2, pay back 50%
        gainRatio = 1100;// /10 so 1.1

        _minimumCollateralPercentage = minimumCollateralPercentage;

        collateral = ERC20Detailed(_collateral);
        mai = ERC20Detailed(_mai);
        priceSourceDecimals = 8;
    }

    modifier onlyVaultOwner(uint256 vaultID) {
        require(_exists(vaultID), "Vault does not exist");
        require(ownerOf(vaultID) == msg.sender, "Vault is not owned by you");
        _;
    }

    function getDebtCeiling() public view returns (uint256){
        return mai.balanceOf(address(this));
    }

    function exists(uint256 vaultID) external view returns (bool){
        return _exists(vaultID);
    }

    function getClosingFee() external view returns (uint256){
        return closingFee;
    }

    function getOpeningFee() external view returns (uint256){
        return openingFee;
    }

    function getTokenPriceSource() public view returns (uint256){
        return tokenPeg;
    }

    function getEthPriceSource() public view returns (uint256){
        (,int256 price,,,) = ethPriceSource.latestRoundData();
        return uint256(price);
    }

    function calculateCollateralProperties(uint256 _collateral, uint256 _debt) private view returns (uint256, uint256) {

        assert(getEthPriceSource() != 0);
        assert(getTokenPriceSource() != 0);

        uint256 collateralValue = _collateral.mul(getEthPriceSource()).mul(10**(uint256(mai.decimals()).sub(uint256(collateral.decimals()))));

        assert(collateralValue >= _collateral);

        uint256 debtValue = _debt.mul(getTokenPriceSource());

        assert(debtValue >= _debt);

        uint256 collateralValueTimes100 = collateralValue.mul(100);

        assert(collateralValueTimes100 > collateralValue);

        return (collateralValueTimes100, debtValue);
    }

    function isValidCollateral(uint256 collateral, uint256 debt) private view returns (bool) {
        (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(collateral, debt);

        uint256 collateralPercentage = collateralValueTimes100.div(debtValue);

        return collateralPercentage >= _minimumCollateralPercentage;
    }

    function createVault() external returns (uint256) {
        uint256 id = vaultCount;
        vaultCount = vaultCount.add(1);

        assert(vaultCount >= id);

        _mint(msg.sender,id);

        emit CreateVault(id, msg.sender);

        return id;
    }

    function destroyVault(uint256 vaultID) external onlyVaultOwner(vaultID) nonReentrant {
        require(vaultDebt[vaultID] == 0, "Vault has outstanding debt");

        if(vaultCollateral[vaultID]!=0) {
            // withdraw leftover collateral
            collateral.safeTransfer(ownerOf(vaultID), vaultCollateral[vaultID]);
        }

        _burn(vaultID);

        delete vaultCollateral[vaultID];
        delete vaultDebt[vaultID];

        emit DestroyVault(vaultID);
    }

    function depositCollateral(uint256 vaultID, uint256 amount) external {

        collateral.safeTransferFrom(msg.sender, address(this), amount);

        uint256 newCollateral = vaultCollateral[vaultID].add(amount);

        assert(newCollateral >= vaultCollateral[vaultID]);

        vaultCollateral[vaultID] = newCollateral;

        emit DepositCollateral(vaultID, amount);
    }

    function withdrawCollateral(uint256 vaultID, uint256 amount) external onlyVaultOwner(vaultID) nonReentrant {
        require(vaultCollateral[vaultID] >= amount, "Vault does not have enough collateral");

        uint256 newCollateral = vaultCollateral[vaultID].sub(amount);

        if(vaultDebt[vaultID] != 0) {
            require(isValidCollateral(newCollateral, vaultDebt[vaultID]), "Withdrawal would put vault below minimum collateral percentage");
        }

        vaultCollateral[vaultID] = newCollateral;
        collateral.safeTransfer(msg.sender, amount);

        emit WithdrawCollateral(vaultID, amount);
    }

    function borrowToken(uint256 vaultID, uint256 amount) external onlyVaultOwner(vaultID) {
        require(amount > 0, "Must borrow non-zero amount");
        require(amount <= getDebtCeiling(), "borrowToken: Cannot mint over available supply.");

        uint256 newDebt = vaultDebt[vaultID].add(amount);

        assert(newDebt > vaultDebt[vaultID]);

        require(isValidCollateral(vaultCollateral[vaultID], newDebt), "Borrow would put vault below minimum collateral percentage");

        vaultDebt[vaultID] = newDebt;

        // mai
        mai.safeTransfer(msg.sender, amount);
        totalBorrowed=totalBorrowed.add(amount);
        emit BorrowToken(vaultID, amount);
    }

    function payBackToken(uint256 vaultID, uint256 amount) external {
        require(mai.balanceOf(msg.sender) >= amount, "Token balance too low");
        require(vaultDebt[vaultID] >= amount, "Vault debt less than amount to pay back");

        uint256 _closingFee = (amount.mul(closingFee).mul(getTokenPriceSource())).div(getEthPriceSource().mul(10000));

        //mai
        mai.safeTransferFrom(msg.sender, address(this), amount);

        vaultDebt[vaultID] = vaultDebt[vaultID].sub(amount);
        vaultCollateral[vaultID]=vaultCollateral[vaultID].sub(_closingFee);
        vaultCollateral[treasury]=vaultCollateral[treasury].add(_closingFee);

        totalBorrowed=totalBorrowed.sub(amount);
        emit PayBackToken(vaultID, amount, _closingFee);
    }

    function getPaid() public nonReentrant {
        require(maticDebt[msg.sender]!=0, "Don't have anything for you.");
        uint256 amount = maticDebt[msg.sender];
        maticDebt[msg.sender]=0;
        collateral.safeTransfer(msg.sender, amount);
    }

    function checkCost(uint256 vaultID) public view returns (uint256) {

        if(vaultCollateral[vaultID] == 0 || vaultDebt[vaultID]==0 || !checkLiquidation(vaultID) ){
            return 0;
        }

        (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]);

        if(debtValue==0){
            return 0;
        }
        
        uint256 collateralPercentage = collateralValueTimes100.div(debtValue);

        debtValue = debtValue.div(10 ** priceSourceDecimals);

        uint256 halfDebt = debtValue.div(debtRatio); //debtRatio (2)

        return(halfDebt);
    }

    function checkExtract(uint256 vaultID) public view returns (uint256) {

        if(vaultCollateral[vaultID] == 0|| !checkLiquidation(vaultID) ) {
            return 0;
        }

        (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]);

        uint256 halfDebt = debtValue.div(debtRatio); //debtRatio (2)

        if(halfDebt==0){
            return 0;
        }
        return halfDebt.mul(gainRatio).div(1000).div(getEthPriceSource());
    }

    function checkCollateralPercentage(uint256 vaultID) public view returns(uint256){
        require(_exists(vaultID), "Vault does not exist");

        if(vaultCollateral[vaultID] == 0 || vaultDebt[vaultID]==0){
            return 0;
        }
        (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]);

        return collateralValueTimes100.div(debtValue);
    }

    function checkLiquidation(uint256 vaultID) public view returns (bool) {
        require(_exists(vaultID), "Vault does not exist");
        
        if(vaultCollateral[vaultID] == 0 || vaultDebt[vaultID]==0){
            return false;
        }

        (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]);

        uint256 collateralPercentage = collateralValueTimes100.div(debtValue);

        if(collateralPercentage < _minimumCollateralPercentage){
            return true;
        } else{
            return false;
        }
    }

    function liquidateVault(uint256 vaultID) external {
        require(_exists(vaultID), "Vault does not exist");
        require(stabilityPool==address(0) || msg.sender ==  stabilityPool, "liquidation is disabled for public");

        (uint256 collateralValueTimes100, uint256 debtValue) = calculateCollateralProperties(vaultCollateral[vaultID], vaultDebt[vaultID]);

        uint256 collateralPercentage = collateralValueTimes100.div(debtValue);

        require(collateralPercentage < _minimumCollateralPercentage, "Vault is not below minimum collateral percentage");

        debtValue = debtValue.div(10 ** priceSourceDecimals);

        uint256 halfDebt = debtValue.div(debtRatio); //debtRatio (2)

        require(mai.balanceOf(msg.sender) >= halfDebt, "Token balance too low to pay off outstanding debt");

        //mai
        mai.safeTransferFrom(msg.sender, address(this), halfDebt);
        totalBorrowed=totalBorrowed.sub(halfDebt);

        uint256 maticExtract = checkExtract(vaultID);

        vaultDebt[vaultID] = vaultDebt[vaultID].sub(halfDebt); // we paid back half of its debt.

        uint256 _closingFee = (halfDebt.mul(closingFee).mul(getTokenPriceSource()) ).div(getEthPriceSource().mul(10000));
     
        vaultCollateral[vaultID]=vaultCollateral[vaultID].sub(_closingFee);
        vaultCollateral[treasury]=vaultCollateral[treasury].add(_closingFee);

        // deduct the amount from the vault's collateral
        vaultCollateral[vaultID] = vaultCollateral[vaultID].sub(maticExtract);

        // let liquidator take the collateral
        maticDebt[msg.sender] = maticDebt[msg.sender].add(maticExtract);

        emit LiquidateVault(vaultID, ownerOf(vaultID), msg.sender, halfDebt, maticExtract, _closingFee);
    }
}

File 4 of 24 : Context.sol
pragma solidity ^0.5.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN 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.
 */
contract Context {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.
    constructor () internal { }
    // solhint-disable-previous-line no-empty-blocks

    function _msgSender() internal view returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

File 5 of 24 : SafeERC20.sol
pragma solidity ^0.5.0;

import "./IERC20.sol";
import "../../math/SafeMath.sol";
import "../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for ERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        require((value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(value, "SafeERC20: decreased allowance below zero");
        callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves.

        // A Solidity high level call has three parts:
        //  1. The target address is checked to verify it contains contract code
        //  2. The call itself is made, and success asserted
        //  3. The return value is decoded, which in turn checks the size of the returned data.
        // solhint-disable-next-line max-line-length
        require(address(token).isContract(), "SafeERC20: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = address(token).call(data);
        require(success, "SafeERC20: low-level call failed");

        if (returndata.length > 0) { // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

File 6 of 24 : ERC20.sol
pragma solidity ^0.5.0;

import "../../GSN/Context.sol";
import "./IERC20.sol";
import "../../math/SafeMath.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20Mintable}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20 {
    using SafeMath for uint256;

    mapping (address => uint256) private _balances;

    mapping (address => mapping (address => uint256)) private _allowances;

    uint256 private _totalSupply;

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20};
     *
     * Requirements:
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for `sender`'s tokens of at least
     * `amount`.
     */
    function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(address sender, address recipient, uint256 amount) internal {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal {
        require(account != address(0), "ERC20: mint to the zero address");

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal {
        require(account != address(0), "ERC20: burn from the zero address");

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.
     *
     * This is internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`.`amount` is then deducted
     * from the caller's allowance.
     *
     * See {_burn} and {_approve}.
     */
    function _burnFrom(address account, uint256 amount) internal {
        _burn(account, amount);
        _approve(account, _msgSender(), _allowances[account][_msgSender()].sub(amount, "ERC20: burn amount exceeds allowance"));
    }
}

File 7 of 24 : ERC20Detailed.sol
pragma solidity ^0.5.0;

import "./IERC20.sol";

/**
 * @dev Optional functions from the ERC20 standard.
 */
contract ERC20Detailed is IERC20 {
    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for `name`, `symbol`, and `decimals`. All three of
     * these values are immutable: they can only be set once during
     * construction.
     */
    constructor (string memory name, string memory symbol, uint8 decimals) public {
        _name = name;
        _symbol = symbol;
        _decimals = decimals;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view returns (uint8) {
        return _decimals;
    }
}

File 8 of 24 : ReentrancyGuard.sol
pragma solidity ^0.5.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 *
 * _Since v2.5.0:_ this module is now much more gas efficient, given net gas
 * metering changes introduced in the Istanbul hardfork.
 */
contract ReentrancyGuard {
    bool private _notEntered;

    constructor () internal {
        // Storing an initial non-zero value makes deployment a bit more
        // expensive, but in exchange the refund on every call to nonReentrant
        // will be lower in amount. Since refunds are capped to a percetange of
        // the total transaction's gas, it is best to keep them low in cases
        // like this one, to increase the likelihood of the full refund coming
        // into effect.
        _notEntered = true;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_notEntered, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _notEntered = false;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _notEntered = true;
    }
}

File 9 of 24 : SafeMath.sol
pragma solidity ^0.5.0;

/**
 * @dev Wrappers over Solidity's arithmetic operations with added overflow
 * checks.
 *
 * Arithmetic operations in Solidity wrap on overflow. This can easily result
 * in bugs, because programmers usually assume that an overflow raises an
 * error, which is the standard behavior in high level programming languages.
 * `SafeMath` restores this intuition by reverting the transaction when an
 * operation overflows.
 *
 * Using this library instead of the unchecked operations eliminates an entire
 * class of bugs, so it's recommended to use it always.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     * - Subtraction cannot overflow.
     *
     * _Available since v2.4.0._
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     *
     * _Available since v2.4.0._
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        // Solidity only automatically asserts when dividing by 0
        require(b > 0, errorMessage);
        uint256 c = a / b;
        // assert(a == b * c + a % b); // There is no case in which this doesn't hold

        return c;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     * - The divisor cannot be zero.
     *
     * _Available since v2.4.0._
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

File 10 of 24 : PriceSource.sol
pragma solidity ^0.5.0;

interface PriceSource {
	function latestRoundData() external view returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);
	function decimals() external view returns (uint8);
// source: https://polygonscan.com/address/0xab594600376ec9fd91f8e885dadf0ce036862de0#code
}

File 11 of 24 : MyVaultV4.sol
// contracts/MyVaultNFT.sol
// SPDX-License-Identifier: MIT
pragma solidity 0.5.16;

import "@openzeppelin/contracts/token/ERC721/ERC721Full.sol";

contract VaultNFTv4 is ERC721Full {

    string public uri;

    constructor(string memory name, string memory symbol, string memory _uri)
        public
        ERC721Full(name, symbol)
    {
        uri = _uri;
    }

    function tokenURI(uint256 tokenId) public view returns (string memory) {
        require(_exists(tokenId));

        return uri;
    }
}

File 12 of 24 : IERC20.sol
pragma solidity ^0.5.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP. Does not include
 * the optional functions; to access them see {ERC20Detailed}.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

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

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

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

File 13 of 24 : Address.sol
pragma solidity ^0.5.5;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following 
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @dev Converts an `address` into `address payable`. Note that this is
     * simply a type cast: the actual underlying value is not changed.
     *
     * _Available since v2.4.0._
     */
    function toPayable(address account) internal pure returns (address payable) {
        return address(uint160(account));
    }

    /**
     * @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].
     *
     * _Available since v2.4.0._
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-call-value
        (bool success, ) = recipient.call.value(amount)("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
}

File 14 of 24 : ERC721Full.sol
pragma solidity ^0.5.0;

import "./ERC721.sol";
import "./ERC721Enumerable.sol";
import "./ERC721Metadata.sol";

/**
 * @title Full ERC721 Token
 * @dev This implementation includes all the required and some optional functionality of the ERC721 standard
 * Moreover, it includes approve all functionality using operator terminology.
 *
 * See https://eips.ethereum.org/EIPS/eip-721
 */
contract ERC721Full is ERC721, ERC721Enumerable, ERC721Metadata {
    constructor (string memory name, string memory symbol) public ERC721Metadata(name, symbol) {
        // solhint-disable-previous-line no-empty-blocks
    }
}

File 15 of 24 : ERC721.sol
pragma solidity ^0.5.0;

import "../../GSN/Context.sol";
import "./IERC721.sol";
import "./IERC721Receiver.sol";
import "../../math/SafeMath.sol";
import "../../utils/Address.sol";
import "../../drafts/Counters.sol";
import "../../introspection/ERC165.sol";

/**
 * @title ERC721 Non-Fungible Token Standard basic implementation
 * @dev see https://eips.ethereum.org/EIPS/eip-721
 */
contract ERC721 is Context, ERC165, IERC721 {
    using SafeMath for uint256;
    using Address for address;
    using Counters for Counters.Counter;

    // Equals to `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
    // which can be also obtained as `IERC721Receiver(0).onERC721Received.selector`
    bytes4 private constant _ERC721_RECEIVED = 0x150b7a02;

    // Mapping from token ID to owner
    mapping (uint256 => address) private _tokenOwner;

    // Mapping from token ID to approved address
    mapping (uint256 => address) private _tokenApprovals;

    // Mapping from owner to number of owned token
    mapping (address => Counters.Counter) private _ownedTokensCount;

    // Mapping from owner to operator approvals
    mapping (address => mapping (address => bool)) private _operatorApprovals;

    /*
     *     bytes4(keccak256('balanceOf(address)')) == 0x70a08231
     *     bytes4(keccak256('ownerOf(uint256)')) == 0x6352211e
     *     bytes4(keccak256('approve(address,uint256)')) == 0x095ea7b3
     *     bytes4(keccak256('getApproved(uint256)')) == 0x081812fc
     *     bytes4(keccak256('setApprovalForAll(address,bool)')) == 0xa22cb465
     *     bytes4(keccak256('isApprovedForAll(address,address)')) == 0xe985e9c5
     *     bytes4(keccak256('transferFrom(address,address,uint256)')) == 0x23b872dd
     *     bytes4(keccak256('safeTransferFrom(address,address,uint256)')) == 0x42842e0e
     *     bytes4(keccak256('safeTransferFrom(address,address,uint256,bytes)')) == 0xb88d4fde
     *
     *     => 0x70a08231 ^ 0x6352211e ^ 0x095ea7b3 ^ 0x081812fc ^
     *        0xa22cb465 ^ 0xe985e9c ^ 0x23b872dd ^ 0x42842e0e ^ 0xb88d4fde == 0x80ac58cd
     */
    bytes4 private constant _INTERFACE_ID_ERC721 = 0x80ac58cd;

    constructor () public {
        // register the supported interfaces to conform to ERC721 via ERC165
        _registerInterface(_INTERFACE_ID_ERC721);
    }

    /**
     * @dev Gets the balance of the specified address.
     * @param owner address to query the balance of
     * @return uint256 representing the amount owned by the passed address
     */
    function balanceOf(address owner) public view returns (uint256) {
        require(owner != address(0), "ERC721: balance query for the zero address");

        return _ownedTokensCount[owner].current();
    }

    /**
     * @dev Gets the owner of the specified token ID.
     * @param tokenId uint256 ID of the token to query the owner of
     * @return address currently marked as the owner of the given token ID
     */
    function ownerOf(uint256 tokenId) public view returns (address) {
        address owner = _tokenOwner[tokenId];
        require(owner != address(0), "ERC721: owner query for nonexistent token");

        return owner;
    }

    /**
     * @dev Approves another address to transfer the given token ID
     * The zero address indicates there is no approved address.
     * There can only be one approved address per token at a given time.
     * Can only be called by the token owner or an approved operator.
     * @param to address to be approved for the given token ID
     * @param tokenId uint256 ID of the token to be approved
     */
    function approve(address to, uint256 tokenId) public {
        address owner = ownerOf(tokenId);
        require(to != owner, "ERC721: approval to current owner");

        require(_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            "ERC721: approve caller is not owner nor approved for all"
        );

        _tokenApprovals[tokenId] = to;
        emit Approval(owner, to, tokenId);
    }

    /**
     * @dev Gets the approved address for a token ID, or zero if no address set
     * Reverts if the token ID does not exist.
     * @param tokenId uint256 ID of the token to query the approval of
     * @return address currently approved for the given token ID
     */
    function getApproved(uint256 tokenId) public view returns (address) {
        require(_exists(tokenId), "ERC721: approved query for nonexistent token");

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev Sets or unsets the approval of a given operator
     * An operator is allowed to transfer all tokens of the sender on their behalf.
     * @param to operator address to set the approval
     * @param approved representing the status of the approval to be set
     */
    function setApprovalForAll(address to, bool approved) public {
        require(to != _msgSender(), "ERC721: approve to caller");

        _operatorApprovals[_msgSender()][to] = approved;
        emit ApprovalForAll(_msgSender(), to, approved);
    }

    /**
     * @dev Tells whether an operator is approved by a given owner.
     * @param owner owner address which you want to query the approval of
     * @param operator operator address which you want to query the approval of
     * @return bool whether the given operator is approved by the given owner
     */
    function isApprovedForAll(address owner, address operator) public view returns (bool) {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev Transfers the ownership of a given token ID to another address.
     * Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     * Requires the msg.sender to be the owner, approved, or operator.
     * @param from current owner of the token
     * @param to address to receive the ownership of the given token ID
     * @param tokenId uint256 ID of the token to be transferred
     */
    function transferFrom(address from, address to, uint256 tokenId) public {
        //solhint-disable-next-line max-line-length
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");

        _transferFrom(from, to, tokenId);
    }

    /**
     * @dev Safely transfers the ownership of a given token ID to another address
     * If the target address is a contract, it must implement {IERC721Receiver-onERC721Received},
     * which is called upon a safe transfer, and return the magic value
     * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
     * the transfer is reverted.
     * Requires the msg.sender to be the owner, approved, or operator
     * @param from current owner of the token
     * @param to address to receive the ownership of the given token ID
     * @param tokenId uint256 ID of the token to be transferred
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) public {
        safeTransferFrom(from, to, tokenId, "");
    }

    /**
     * @dev Safely transfers the ownership of a given token ID to another address
     * If the target address is a contract, it must implement {IERC721Receiver-onERC721Received},
     * which is called upon a safe transfer, and return the magic value
     * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
     * the transfer is reverted.
     * Requires the _msgSender() to be the owner, approved, or operator
     * @param from current owner of the token
     * @param to address to receive the ownership of the given token ID
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes data to send along with a safe transfer check
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) public {
        require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
        _safeTransferFrom(from, to, tokenId, _data);
    }

    /**
     * @dev Safely transfers the ownership of a given token ID to another address
     * If the target address is a contract, it must implement `onERC721Received`,
     * which is called upon a safe transfer, and return the magic value
     * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
     * the transfer is reverted.
     * Requires the msg.sender to be the owner, approved, or operator
     * @param from current owner of the token
     * @param to address to receive the ownership of the given token ID
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes data to send along with a safe transfer check
     */
    function _safeTransferFrom(address from, address to, uint256 tokenId, bytes memory _data) internal {
        _transferFrom(from, to, tokenId);
        require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Returns whether the specified token exists.
     * @param tokenId uint256 ID of the token to query the existence of
     * @return bool whether the token exists
     */
    function _exists(uint256 tokenId) internal view returns (bool) {
        address owner = _tokenOwner[tokenId];
        return owner != address(0);
    }

    /**
     * @dev Returns whether the given spender can transfer a given token ID.
     * @param spender address of the spender to query
     * @param tokenId uint256 ID of the token to be transferred
     * @return bool whether the msg.sender is approved for the given token ID,
     * is an operator of the owner, or is the owner of the token
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId) internal view returns (bool) {
        require(_exists(tokenId), "ERC721: operator query for nonexistent token");
        address owner = ownerOf(tokenId);
        return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
    }

    /**
     * @dev Internal function to safely mint a new token.
     * Reverts if the given token ID already exists.
     * If the target address is a contract, it must implement `onERC721Received`,
     * which is called upon a safe transfer, and return the magic value
     * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
     * the transfer is reverted.
     * @param to The address that will own the minted token
     * @param tokenId uint256 ID of the token to be minted
     */
    function _safeMint(address to, uint256 tokenId) internal {
        _safeMint(to, tokenId, "");
    }

    /**
     * @dev Internal function to safely mint a new token.
     * Reverts if the given token ID already exists.
     * If the target address is a contract, it must implement `onERC721Received`,
     * which is called upon a safe transfer, and return the magic value
     * `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`; otherwise,
     * the transfer is reverted.
     * @param to The address that will own the minted token
     * @param tokenId uint256 ID of the token to be minted
     * @param _data bytes data to send along with a safe transfer check
     */
    function _safeMint(address to, uint256 tokenId, bytes memory _data) internal {
        _mint(to, tokenId);
        require(_checkOnERC721Received(address(0), to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
    }

    /**
     * @dev Internal function to mint a new token.
     * Reverts if the given token ID already exists.
     * @param to The address that will own the minted token
     * @param tokenId uint256 ID of the token to be minted
     */
    function _mint(address to, uint256 tokenId) internal {
        require(to != address(0), "ERC721: mint to the zero address");
        require(!_exists(tokenId), "ERC721: token already minted");

        _tokenOwner[tokenId] = to;
        _ownedTokensCount[to].increment();

        emit Transfer(address(0), to, tokenId);
    }

    /**
     * @dev Internal function to burn a specific token.
     * Reverts if the token does not exist.
     * Deprecated, use {_burn} instead.
     * @param owner owner of the token to burn
     * @param tokenId uint256 ID of the token being burned
     */
    function _burn(address owner, uint256 tokenId) internal {
        require(ownerOf(tokenId) == owner, "ERC721: burn of token that is not own");

        _clearApproval(tokenId);

        _ownedTokensCount[owner].decrement();
        _tokenOwner[tokenId] = address(0);

        emit Transfer(owner, address(0), tokenId);
    }

    /**
     * @dev Internal function to burn a specific token.
     * Reverts if the token does not exist.
     * @param tokenId uint256 ID of the token being burned
     */
    function _burn(uint256 tokenId) internal {
        _burn(ownerOf(tokenId), tokenId);
    }

    /**
     * @dev Internal function to transfer ownership of a given token ID to another address.
     * As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     * @param from current owner of the token
     * @param to address to receive the ownership of the given token ID
     * @param tokenId uint256 ID of the token to be transferred
     */
    function _transferFrom(address from, address to, uint256 tokenId) internal {
        require(ownerOf(tokenId) == from, "ERC721: transfer of token that is not own");
        require(to != address(0), "ERC721: transfer to the zero address");

        _clearApproval(tokenId);

        _ownedTokensCount[from].decrement();
        _ownedTokensCount[to].increment();

        _tokenOwner[tokenId] = to;

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * This is an internal detail of the `ERC721` contract and its use is deprecated.
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(address from, address to, uint256 tokenId, bytes memory _data)
        internal returns (bool)
    {
        if (!to.isContract()) {
            return true;
        }
        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = to.call(abi.encodeWithSelector(
            IERC721Receiver(to).onERC721Received.selector,
            _msgSender(),
            from,
            tokenId,
            _data
        ));
        if (!success) {
            if (returndata.length > 0) {
                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert("ERC721: transfer to non ERC721Receiver implementer");
            }
        } else {
            bytes4 retval = abi.decode(returndata, (bytes4));
            return (retval == _ERC721_RECEIVED);
        }
    }

    /**
     * @dev Private function to clear current approval of a given token ID.
     * @param tokenId uint256 ID of the token to be transferred
     */
    function _clearApproval(uint256 tokenId) private {
        if (_tokenApprovals[tokenId] != address(0)) {
            _tokenApprovals[tokenId] = address(0);
        }
    }
}

File 16 of 24 : ERC721Enumerable.sol
pragma solidity ^0.5.0;

import "../../GSN/Context.sol";
import "./IERC721Enumerable.sol";
import "./ERC721.sol";
import "../../introspection/ERC165.sol";

/**
 * @title ERC-721 Non-Fungible Token with optional enumeration extension logic
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
contract ERC721Enumerable is Context, ERC165, ERC721, IERC721Enumerable {
    // Mapping from owner to list of owned token IDs
    mapping(address => uint256[]) private _ownedTokens;

    // Mapping from token ID to index of the owner tokens list
    mapping(uint256 => uint256) private _ownedTokensIndex;

    // Array with all token ids, used for enumeration
    uint256[] private _allTokens;

    // Mapping from token id to position in the allTokens array
    mapping(uint256 => uint256) private _allTokensIndex;

    /*
     *     bytes4(keccak256('totalSupply()')) == 0x18160ddd
     *     bytes4(keccak256('tokenOfOwnerByIndex(address,uint256)')) == 0x2f745c59
     *     bytes4(keccak256('tokenByIndex(uint256)')) == 0x4f6ccce7
     *
     *     => 0x18160ddd ^ 0x2f745c59 ^ 0x4f6ccce7 == 0x780e9d63
     */
    bytes4 private constant _INTERFACE_ID_ERC721_ENUMERABLE = 0x780e9d63;

    /**
     * @dev Constructor function.
     */
    constructor () public {
        // register the supported interface to conform to ERC721Enumerable via ERC165
        _registerInterface(_INTERFACE_ID_ERC721_ENUMERABLE);
    }

    /**
     * @dev Gets the token ID at a given index of the tokens list of the requested owner.
     * @param owner address owning the tokens list to be accessed
     * @param index uint256 representing the index to be accessed of the requested tokens list
     * @return uint256 token ID at the given index of the tokens list owned by the requested address
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256) {
        require(index < balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
        return _ownedTokens[owner][index];
    }

    /**
     * @dev Gets the total amount of tokens stored by the contract.
     * @return uint256 representing the total amount of tokens
     */
    function totalSupply() public view returns (uint256) {
        return _allTokens.length;
    }

    /**
     * @dev Gets the token ID at a given index of all the tokens in this contract
     * Reverts if the index is greater or equal to the total number of tokens.
     * @param index uint256 representing the index to be accessed of the tokens list
     * @return uint256 token ID at the given index of the tokens list
     */
    function tokenByIndex(uint256 index) public view returns (uint256) {
        require(index < totalSupply(), "ERC721Enumerable: global index out of bounds");
        return _allTokens[index];
    }

    /**
     * @dev Internal function to transfer ownership of a given token ID to another address.
     * As opposed to transferFrom, this imposes no restrictions on msg.sender.
     * @param from current owner of the token
     * @param to address to receive the ownership of the given token ID
     * @param tokenId uint256 ID of the token to be transferred
     */
    function _transferFrom(address from, address to, uint256 tokenId) internal {
        super._transferFrom(from, to, tokenId);

        _removeTokenFromOwnerEnumeration(from, tokenId);

        _addTokenToOwnerEnumeration(to, tokenId);
    }

    /**
     * @dev Internal function to mint a new token.
     * Reverts if the given token ID already exists.
     * @param to address the beneficiary that will own the minted token
     * @param tokenId uint256 ID of the token to be minted
     */
    function _mint(address to, uint256 tokenId) internal {
        super._mint(to, tokenId);

        _addTokenToOwnerEnumeration(to, tokenId);

        _addTokenToAllTokensEnumeration(tokenId);
    }

    /**
     * @dev Internal function to burn a specific token.
     * Reverts if the token does not exist.
     * Deprecated, use {ERC721-_burn} instead.
     * @param owner owner of the token to burn
     * @param tokenId uint256 ID of the token being burned
     */
    function _burn(address owner, uint256 tokenId) internal {
        super._burn(owner, tokenId);

        _removeTokenFromOwnerEnumeration(owner, tokenId);
        // Since tokenId will be deleted, we can clear its slot in _ownedTokensIndex to trigger a gas refund
        _ownedTokensIndex[tokenId] = 0;

        _removeTokenFromAllTokensEnumeration(tokenId);
    }

    /**
     * @dev Gets the list of token IDs of the requested owner.
     * @param owner address owning the tokens
     * @return uint256[] List of token IDs owned by the requested address
     */
    function _tokensOfOwner(address owner) internal view returns (uint256[] storage) {
        return _ownedTokens[owner];
    }

    /**
     * @dev Private function to add a token to this extension's ownership-tracking data structures.
     * @param to address representing the new owner of the given token ID
     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
     */
    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
        _ownedTokensIndex[tokenId] = _ownedTokens[to].length;
        _ownedTokens[to].push(tokenId);
    }

    /**
     * @dev Private function to add a token to this extension's token tracking data structures.
     * @param tokenId uint256 ID of the token to be added to the tokens list
     */
    function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
        _allTokensIndex[tokenId] = _allTokens.length;
        _allTokens.push(tokenId);
    }

    /**
     * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
     * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
     * gas optimizations e.g. when performing a transfer operation (avoiding double writes).
     * This has O(1) time complexity, but alters the order of the _ownedTokens array.
     * @param from address representing the previous owner of the given token ID
     * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
     */
    function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
        // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = _ownedTokens[from].length.sub(1);
        uint256 tokenIndex = _ownedTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary
        if (tokenIndex != lastTokenIndex) {
            uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];

            _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
            _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
        }

        // This also deletes the contents at the last position of the array
        _ownedTokens[from].length--;

        // Note that _ownedTokensIndex[tokenId] hasn't been cleared: it still points to the old slot (now occupied by
        // lastTokenId, or just over the end of the array if the token was the last one).
    }

    /**
     * @dev Private function to remove a token from this extension's token tracking data structures.
     * This has O(1) time complexity, but alters the order of the _allTokens array.
     * @param tokenId uint256 ID of the token to be removed from the tokens list
     */
    function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
        // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = _allTokens.length.sub(1);
        uint256 tokenIndex = _allTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
        // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
        // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
        uint256 lastTokenId = _allTokens[lastTokenIndex];

        _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
        _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index

        // This also deletes the contents at the last position of the array
        _allTokens.length--;
        _allTokensIndex[tokenId] = 0;
    }
}

File 17 of 24 : ERC721Metadata.sol
pragma solidity ^0.5.0;

import "../../GSN/Context.sol";
import "./ERC721.sol";
import "./IERC721Metadata.sol";
import "../../introspection/ERC165.sol";

contract ERC721Metadata is Context, ERC165, ERC721, IERC721Metadata {
    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Base URI
    string private _baseURI;

    // Optional mapping for token URIs
    mapping(uint256 => string) private _tokenURIs;

    /*
     *     bytes4(keccak256('name()')) == 0x06fdde03
     *     bytes4(keccak256('symbol()')) == 0x95d89b41
     *     bytes4(keccak256('tokenURI(uint256)')) == 0xc87b56dd
     *
     *     => 0x06fdde03 ^ 0x95d89b41 ^ 0xc87b56dd == 0x5b5e139f
     */
    bytes4 private constant _INTERFACE_ID_ERC721_METADATA = 0x5b5e139f;

    /**
     * @dev Constructor function
     */
    constructor (string memory name, string memory symbol) public {
        _name = name;
        _symbol = symbol;

        // register the supported interfaces to conform to ERC721 via ERC165
        _registerInterface(_INTERFACE_ID_ERC721_METADATA);
    }

    /**
     * @dev Gets the token name.
     * @return string representing the token name
     */
    function name() external view returns (string memory) {
        return _name;
    }

    /**
     * @dev Gets the token symbol.
     * @return string representing the token symbol
     */
    function symbol() external view returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the URI for a given token ID. May return an empty string.
     *
     * If the token's URI is non-empty and a base URI was set (via
     * {_setBaseURI}), it will be added to the token ID's URI as a prefix.
     *
     * Reverts if the token ID does not exist.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory) {
        require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");

        string memory _tokenURI = _tokenURIs[tokenId];

        // Even if there is a base URI, it is only appended to non-empty token-specific URIs
        if (bytes(_tokenURI).length == 0) {
            return "";
        } else {
            // abi.encodePacked is being used to concatenate strings
            return string(abi.encodePacked(_baseURI, _tokenURI));
        }
    }

    /**
     * @dev Internal function to set the token URI for a given token.
     *
     * Reverts if the token ID does not exist.
     *
     * TIP: if all token IDs share a prefix (e.g. if your URIs look like
     * `http://api.myproject.com/token/<id>`), use {_setBaseURI} to store
     * it and save gas.
     */
    function _setTokenURI(uint256 tokenId, string memory _tokenURI) internal {
        require(_exists(tokenId), "ERC721Metadata: URI set of nonexistent token");
        _tokenURIs[tokenId] = _tokenURI;
    }

    /**
     * @dev Internal function to set the base URI for all token IDs. It is
     * automatically added as a prefix to the value returned in {tokenURI}.
     *
     * _Available since v2.5.0._
     */
    function _setBaseURI(string memory baseURI) internal {
        _baseURI = baseURI;
    }

    /**
    * @dev Returns the base URI set via {_setBaseURI}. This will be
    * automatically added as a preffix in {tokenURI} to each token's URI, when
    * they are non-empty.
    *
    * _Available since v2.5.0._
    */
    function baseURI() external view returns (string memory) {
        return _baseURI;
    }

    /**
     * @dev Internal function to burn a specific token.
     * Reverts if the token does not exist.
     * Deprecated, use _burn(uint256) instead.
     * @param owner owner of the token to burn
     * @param tokenId uint256 ID of the token being burned by the msg.sender
     */
    function _burn(address owner, uint256 tokenId) internal {
        super._burn(owner, tokenId);

        // Clear metadata (if any)
        if (bytes(_tokenURIs[tokenId]).length != 0) {
            delete _tokenURIs[tokenId];
        }
    }
}

File 18 of 24 : IERC721.sol
pragma solidity ^0.5.0;

import "../../introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
contract IERC721 is IERC165 {
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of NFTs in `owner`'s account.
     */
    function balanceOf(address owner) public view returns (uint256 balance);

    /**
     * @dev Returns the owner of the NFT specified by `tokenId`.
     */
    function ownerOf(uint256 tokenId) public view returns (address owner);

    /**
     * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to
     * another (`to`).
     *
     *
     *
     * Requirements:
     * - `from`, `to` cannot be zero.
     * - `tokenId` must be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this
     * NFT by either {approve} or {setApprovalForAll}.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) public;
    /**
     * @dev Transfers a specific NFT (`tokenId`) from one account (`from`) to
     * another (`to`).
     *
     * Requirements:
     * - If the caller is not `from`, it must be approved to move this NFT by
     * either {approve} or {setApprovalForAll}.
     */
    function transferFrom(address from, address to, uint256 tokenId) public;
    function approve(address to, uint256 tokenId) public;
    function getApproved(uint256 tokenId) public view returns (address operator);

    function setApprovalForAll(address operator, bool _approved) public;
    function isApprovedForAll(address owner, address operator) public view returns (bool);


    function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public;
}

File 19 of 24 : IERC721Receiver.sol
pragma solidity ^0.5.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
contract IERC721Receiver {
    /**
     * @notice Handle the receipt of an NFT
     * @dev The ERC721 smart contract calls this function on the recipient
     * after a {IERC721-safeTransferFrom}. This function MUST return the function selector,
     * otherwise the caller will revert the transaction. The selector to be
     * returned can be obtained as `this.onERC721Received.selector`. This
     * function MAY throw to revert and reject the transfer.
     * Note: the ERC721 contract address is always the message sender.
     * @param operator The address which called `safeTransferFrom` function
     * @param from The address which previously owned the token
     * @param tokenId The NFT identifier which is being transferred
     * @param data Additional data with no specified format
     * @return bytes4 `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
     */
    function onERC721Received(address operator, address from, uint256 tokenId, bytes memory data)
    public returns (bytes4);
}

File 20 of 24 : Counters.sol
pragma solidity ^0.5.0;

import "../math/SafeMath.sol";

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented or decremented by one. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 * Since it is not possible to overflow a 256 bit integer with increments of one, `increment` can skip the {SafeMath}
 * overflow check, thereby saving gas. This does assume however correct usage, in that the underlying `_value` is never
 * directly accessed.
 */
library Counters {
    using SafeMath for uint256;

    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        // The {SafeMath} overflow check can be skipped here, see the comment at the top
        counter._value += 1;
    }

    function decrement(Counter storage counter) internal {
        counter._value = counter._value.sub(1);
    }
}

File 21 of 24 : ERC165.sol
pragma solidity ^0.5.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts may inherit from this and call {_registerInterface} to declare
 * their support of an interface.
 */
contract ERC165 is IERC165 {
    /*
     * bytes4(keccak256('supportsInterface(bytes4)')) == 0x01ffc9a7
     */
    bytes4 private constant _INTERFACE_ID_ERC165 = 0x01ffc9a7;

    /**
     * @dev Mapping of interface ids to whether or not it's supported.
     */
    mapping(bytes4 => bool) private _supportedInterfaces;

    constructor () internal {
        // Derived contracts need only register support for their own interfaces,
        // we register support for ERC165 itself here
        _registerInterface(_INTERFACE_ID_ERC165);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     *
     * Time complexity O(1), guaranteed to always use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool) {
        return _supportedInterfaces[interfaceId];
    }

    /**
     * @dev Registers the contract as an implementer of the interface defined by
     * `interfaceId`. Support of the actual ERC165 interface is automatic and
     * registering its interface id is not required.
     *
     * See {IERC165-supportsInterface}.
     *
     * Requirements:
     *
     * - `interfaceId` cannot be the ERC165 invalid interface (`0xffffffff`).
     */
    function _registerInterface(bytes4 interfaceId) internal {
        require(interfaceId != 0xffffffff, "ERC165: invalid interface id");
        _supportedInterfaces[interfaceId] = true;
    }
}

File 22 of 24 : IERC165.sol
pragma solidity ^0.5.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

File 23 of 24 : IERC721Enumerable.sol
pragma solidity ^0.5.0;

import "./IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
contract IERC721Enumerable is IERC721 {
    function totalSupply() public view returns (uint256);
    function tokenOfOwnerByIndex(address owner, uint256 index) public view returns (uint256 tokenId);

    function tokenByIndex(uint256 index) public view returns (uint256);
}

File 24 of 24 : IERC721Metadata.sol
pragma solidity ^0.5.0;

import "./IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
contract IERC721Metadata is IERC721 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 2000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract Security Audit

Contract ABI

[{"inputs":[{"internalType":"address","name":"ethPriceSourceAddress","type":"address"},{"internalType":"uint256","name":"minimumCollateralPercentage","type":"uint256"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"},{"internalType":"address","name":"_mai","type":"address"},{"internalType":"address","name":"_collateral","type":"address"},{"internalType":"string","name":"baseURI","type":"string"}],"payable":false,"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"vaultID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"BorrowToken","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"vaultID","type":"uint256"},{"indexed":false,"internalType":"address","name":"creator","type":"address"}],"name":"CreateVault","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"vaultID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"DepositCollateral","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"vaultID","type":"uint256"}],"name":"DestroyVault","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"vaultID","type":"uint256"},{"indexed":false,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"address","name":"buyer","type":"address"},{"indexed":false,"internalType":"uint256","name":"debtRepaid","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"collateralLiquidated","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"closingFee","type":"uint256"}],"name":"LiquidateVault","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"vaultID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"closingFee","type":"uint256"}],"name":"PayBackToken","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"vaultID","type":"uint256"},{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"address","name":"to","type":"address"}],"name":"TransferVault","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"vaultID","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"WithdrawCollateral","type":"event"},{"constant":true,"inputs":[],"name":"_minimumCollateralPercentage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"baseURI","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"borrowToken","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amountToken","type":"uint256"}],"name":"burn","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"ethPriceSourceAddress","type":"address"}],"name":"changeEthPriceSource","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"}],"name":"checkCollateralPercentage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"}],"name":"checkCost","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"}],"name":"checkExtract","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"}],"name":"checkLiquidation","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"closingFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"collateral","outputs":[{"internalType":"contract ERC20Detailed","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"createVault","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"debtRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"depositCollateral","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"}],"name":"destroyVault","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"ethPriceSource","outputs":[{"internalType":"contract PriceSource","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"}],"name":"exists","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"gainRatio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getClosingFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getDebtCeiling","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getEthPriceSource","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"getOpeningFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"getPaid","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"getTokenPriceSource","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"isOwner","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"}],"name":"liquidateVault","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"mai","outputs":[{"internalType":"contract ERC20Detailed","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"maticDebt","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"openingFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"payBackToken","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"priceSourceDecimals","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[],"name":"renounceOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"setClosingFee","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"_debtRatio","type":"uint256"}],"name":"setDebtRatio","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"_gainRatio","type":"uint256"}],"name":"setGainRatio","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"minimumCollateralPercentage","type":"uint256"}],"name":"setMinCollateralRatio","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"setOpeningFee","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"_pool","type":"address"}],"name":"setStabilityPool","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"string","name":"_uri","type":"string"}],"name":"setTokenURI","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"_treasury","type":"uint256"}],"name":"setTreasury","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"stabilityPool","outputs":[{"internalType":"address","name":"","type":"address"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"tokenPeg","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalBorrowed","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":true,"inputs":[],"name":"treasury","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"uri","outputs":[{"internalType":"string","name":"","type":"string"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"vaultCollateral","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"vaultCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"vaultDebt","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":false,"inputs":[{"internalType":"uint256","name":"vaultID","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdrawCollateral","outputs":[],"payable":false,"stateMutability":"nonpayable","type":"function"}]

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

Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

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

-----Decoded View---------------
Arg [0] : ethPriceSourceAddress (address): 0xe6ecf7d2361b6459cbb3b4fb065e0ef4b175fe74
Arg [1] : minimumCollateralPercentage (uint256): 130
Arg [2] : name (string): Aave MAI Vault
Arg [3] : symbol (string): AVMVT
Arg [4] : _mai (address): 0xfb98b335551a418cd0737375a2ea0ded62ea213b
Arg [5] : _collateral (address): 0x6a07a792ab2965c72a5b8088d3a069a7ac3a993b
Arg [6] : baseURI (string): ipfs://QmbgTNkf7q4oL6VmPLadNoKwm8ZKwHGtGtn96KLRdHSYcg

-----Encoded View---------------
14 Constructor Arguments found :
Arg [0] : 000000000000000000000000e6ecf7d2361b6459cbb3b4fb065e0ef4b175fe74
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000082
Arg [2] : 00000000000000000000000000000000000000000000000000000000000000e0
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [4] : 000000000000000000000000fb98b335551a418cd0737375a2ea0ded62ea213b
Arg [5] : 0000000000000000000000006a07a792ab2965c72a5b8088d3a069a7ac3a993b
Arg [6] : 0000000000000000000000000000000000000000000000000000000000000160
Arg [7] : 000000000000000000000000000000000000000000000000000000000000000e
Arg [8] : 41617665204d4149205661756c74000000000000000000000000000000000000
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000005
Arg [10] : 41564d5654000000000000000000000000000000000000000000000000000000
Arg [11] : 0000000000000000000000000000000000000000000000000000000000000035
Arg [12] : 697066733a2f2f516d6267544e6b663771346f4c36566d504c61644e6f4b776d
Arg [13] : 385a4b7748477447746e39364b4c526448535963670000000000000000000000


Loading