added connector on fantom

contracts/avalanche/connectors/aave/v3/main.sol

@@ -64,7 +64,7 @@ abstract contract AaveResolver is Events, Helpers {
 
 	/**
 	 * @dev Withdraw avax/ERC20_Token.
-	 * @notice Withdraw deposited token from Aave v2
+	 * @notice Withdraw deposited token from Aave v3
 	 * @param token The address of the token to withdraw.(For avax: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
 	 * @param amt The amount of the token to withdraw. (For max: `uint256(-1)`)
 	 * @param getId ID to retrieve amt.
@@ -104,7 +104,7 @@ abstract contract AaveResolver is Events, Helpers {
 
 	/**
 	 * @dev Borrow avax/ERC20_Token.
-	 * @notice Borrow a token using Aave v2
+	 * @notice Borrow a token using Aave v3
 	 * @param token The address of the token to borrow.(For avax: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
 	 * @param amt The amount of the token to borrow.
 	 * @param rateMode The type of borrow debt. (For Stable: 1, Variable: 2)

contracts/fantom/common/basic.sol

@@ -0,0 +1,91 @@
+pragma solidity ^0.7.0;
+
+import { TokenInterface } from "./interfaces.sol";
+import { Stores } from "./stores.sol";
+import { DSMath } from "./math.sol";
+
+abstract contract Basic is DSMath, Stores {
+	function convert18ToDec(uint256 _dec, uint256 _amt)
+		internal
+		pure
+		returns (uint256 amt)
+	{
+		amt = (_amt / 10**(18 - _dec));
+	}
+
+	function convertTo18(uint256 _dec, uint256 _amt)
+		internal
+		pure
+		returns (uint256 amt)
+	{
+		amt = mul(_amt, 10**(18 - _dec));
+	}
+
+	function getTokenBal(TokenInterface token)
+		internal
+		view
+		returns (uint256 _amt)
+	{
+		_amt = address(token) == ftmAddr
+			? address(this).balance
+			: token.balanceOf(address(this));
+	}
+
+	function getTokensDec(TokenInterface buyAddr, TokenInterface sellAddr)
+		internal
+		view
+		returns (uint256 buyDec, uint256 sellDec)
+	{
+		buyDec = address(buyAddr) == ftmAddr ? 18 : buyAddr.decimals();
+		sellDec = address(sellAddr) == ftmAddr ? 18 : sellAddr.decimals();
+	}
+
+	function encodeEvent(string memory eventName, bytes memory eventParam)
+		internal
+		pure
+		returns (bytes memory)
+	{
+		return abi.encode(eventName, eventParam);
+	}
+
+	function approve(
+		TokenInterface token,
+		address spender,
+		uint256 amount
+	) internal {
+		try token.approve(spender, amount) {} catch {
+			token.approve(spender, 0);
+			token.approve(spender, amount);
+		}
+	}
+
+	function changeftmAddress(address buy, address sell)
+		internal
+		pure
+		returns (TokenInterface _buy, TokenInterface _sell)
+	{
+		_buy = buy == ftmAddr ? TokenInterface(wftmAddr) : TokenInterface(buy);
+		_sell = sell == ftmAddr
+			? TokenInterface(wftmAddr)
+			: TokenInterface(sell);
+	}
+
+	function convertFtmToWftm(
+		bool isFtm,
+		TokenInterface token,
+		uint256 amount
+	) internal {
+		if (isFtm) token.deposit{ value: amount }();
+	}
+
+	function convertWftmToFtm(
+		bool isFtm,
+		TokenInterface token,
+		uint256 amount
+	) internal {
+		if (isFtm) {
+			approve(token, address(token), amount);
+			token.withdraw(amount);
+		}
+	}
+}

contracts/fantom/common/interfaces.sol

@@ -0,0 +1,35 @@
+pragma solidity ^0.7.0;
+
+interface TokenInterface {
+	function approve(address, uint256) external;
+
+	function transfer(address, uint256) external;
+
+	function transferFrom(
+		address,
+		address,
+		uint256
+	) external;
+
+	function deposit() external payable;
+
+	function withdraw(uint256) external;
+
+	function balanceOf(address) external view returns (uint256);
+
+	function decimals() external view returns (uint256);
+}
+
+interface MemoryInterface {
+	function getUint(uint256 id) external returns (uint256 num);
+
+	function setUint(uint256 id, uint256 val) external;
+}
+
+interface AccountInterface {
+	function enable(address) external;
+
+	function disable(address) external;
+
+	function isAuth(address) external view returns (bool);
+}

contracts/fantom/common/math.sol

@@ -0,0 +1,54 @@
+pragma solidity ^0.7.0;
+
+import { SafeMath } from "@openzeppelin/contracts/math/SafeMath.sol";
+
+contract DSMath {
+	uint256 constant WAD = 10**18;
+	uint256 constant RAY = 10**27;
+
+	function add(uint256 x, uint256 y) internal pure returns (uint256 z) {
+		z = SafeMath.add(x, y);
+	}
+
+	function sub(uint256 x, uint256 y)
+		internal
+		pure
+		virtual
+		returns (uint256 z)
+	{
+		z = SafeMath.sub(x, y);
+	}
+
+	function mul(uint256 x, uint256 y) internal pure returns (uint256 z) {
+		z = SafeMath.mul(x, y);
+	}
+
+	function div(uint256 x, uint256 y) internal pure returns (uint256 z) {
+		z = SafeMath.div(x, y);
+	}
+
+	function wmul(uint256 x, uint256 y) internal pure returns (uint256 z) {
+		z = SafeMath.add(SafeMath.mul(x, y), WAD / 2) / WAD;
+	}
+
+	function wdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {
+		z = SafeMath.add(SafeMath.mul(x, WAD), y / 2) / y;
+	}
+
+	function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z) {
+		z = SafeMath.add(SafeMath.mul(x, RAY), y / 2) / y;
+	}
+
+	function rmul(uint256 x, uint256 y) internal pure returns (uint256 z) {
+		z = SafeMath.add(SafeMath.mul(x, y), RAY / 2) / RAY;
+	}
+
+	function toInt(uint256 x) internal pure returns (int256 y) {
+		y = int256(x);
+		require(y >= 0, "int-overflow");
+	}
+
+	function toRad(uint256 wad) internal pure returns (uint256 rad) {
+		rad = mul(wad, 10**27);
+	}
+}

contracts/fantom/common/stores.sol

@@ -0,0 +1,40 @@
+pragma solidity ^0.7.0;
+
+import { MemoryInterface } from "./interfaces.sol";
+
+abstract contract Stores {
+	/**
+	 * @dev Return FTM address
+	 */
+	address internal constant ftmAddr =
+		0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;
+
+	/**
+	 * @dev Return Wrapped FTM address
+	 */
+	address internal constant wftmAddr =
+		0x21be370D5312f44cB42ce377BC9b8a0cEF1A4C83;
+
+	/**
+	 * @dev Return memory variable address
+	 */
+	MemoryInterface internal constant instaMemory =
+		MemoryInterface(0x56439117379A53bE3CC2C55217251e2481B7a1C8);
+
+	/**
+	 * @dev Get Uint value from InstaMemory Contract.
+	 */
+	function getUint(uint256 getId, uint256 val)
+		internal
+		returns (uint256 returnVal)
+	{
+		returnVal = getId == 0 ? val : instaMemory.getUint(getId);
+	}
+
+	/**
+	 * @dev Set Uint value in InstaMemory Contract.
+	 */
+	function setUint(uint256 setId, uint256 val) internal virtual {
+		if (setId != 0) instaMemory.setUint(setId, val);
+	}
+}

contracts/fantom/connectors/aave/v3/events.sol

@@ -0,0 +1,33 @@
+pragma solidity ^0.7.0;
+
+contract Events {
+	event LogDeposit(
+		address indexed token,
+		uint256 tokenAmt,
+		uint256 getId,
+		uint256 setId
+	);
+	event LogWithdraw(
+		address indexed token,
+		uint256 tokenAmt,
+		uint256 getId,
+		uint256 setId
+	);
+	event LogBorrow(
+		address indexed token,
+		uint256 tokenAmt,
+		uint256 indexed rateMode,
+		uint256 getId,
+		uint256 setId
+	);
+	event LogPayback(
+		address indexed token,
+		uint256 tokenAmt,
+		uint256 indexed rateMode,
+		uint256 getId,
+		uint256 setId
+	);
+	event LogEnableCollateral(address[] tokens);
+	event LogSwapRateMode(address indexed token, uint256 rateMode);
+	event LogSetUserEMode(uint8 categoryId);
+}

contracts/fantom/connectors/aave/v3/helpers.sol

@@ -0,0 +1,66 @@
+pragma solidity ^0.7.0;
+
+import { DSMath } from "../../../common/math.sol";
+import { Basic } from "../../../common/basic.sol";
+import { AavePoolProviderInterface, AaveDataProviderInterface } from "./interface.sol";
+
+abstract contract Helpers is DSMath, Basic {
+	/**
+	 * @dev Aave Pool Provider
+	 */
+	AavePoolProviderInterface internal constant aaveProvider =
+		AavePoolProviderInterface(0xa97684ead0e402dC232d5A977953DF7ECBaB3CDb); // fantom address - PoolAddressesProvider
+
+	/**
+	 * @dev Aave Pool Data Provider
+	 */
+	AaveDataProviderInterface internal constant aaveData =
+		AaveDataProviderInterface(0x69FA688f1Dc47d4B5d8029D5a35FB7a548310654); // fantom address - PoolDataProvider
+
+	/**
+	 * @dev Aave Referral Code
+	 */
+	uint16 internal constant referralCode = 3228;
+
+	/**
+	 * @dev Checks if collateral is enabled for an asset
+	 * @param token token address of the asset.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
+	 */
+
+	function getIsColl(address token) internal view returns (bool isCol) {
+		(, , , , , , , , isCol) = aaveData.getUserReserveData(
+			token,
+			address(this)
+		);
+	}
+
+	/**
+	 * @dev Get total debt balance & fee for an asset
+	 * @param token token address of the debt.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
+	 * @param rateMode Borrow rate mode (Stable = 1, Variable = 2)
+	 */
+	function getPaybackBalance(address token, uint256 rateMode)
+		internal
+		view
+		returns (uint256)
+	{
+		(, uint256 stableDebt, uint256 variableDebt, , , , , , ) = aaveData
+			.getUserReserveData(token, address(this));
+		return rateMode == 1 ? stableDebt : variableDebt;
+	}
+
+	/**
+	 * @dev Get total collateral balance for an asset
+	 * @param token token address of the collateral.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
+	 */
+	function getCollateralBalance(address token)
+		internal
+		view
+		returns (uint256 bal)
+	{
+		(bal, , , , , , , , ) = aaveData.getUserReserveData(
+			token,
+			address(this)
+		);
+	}
+}

contracts/fantom/connectors/aave/v3/interface.sol

@@ -0,0 +1,91 @@
+pragma solidity ^0.7.0;
+
+interface AaveInterface {
+	function supply(
+		address asset,
+		uint256 amount,
+		address onBehalfOf,
+		uint16 referralCode
+	) external;
+
+	function withdraw(
+		address asset,
+		uint256 amount,
+		address to
+	) external returns (uint256);
+
+	function borrow(
+		address asset,
+		uint256 amount,
+		uint256 interestRateMode,
+		uint16 referralCode,
+		address onBehalfOf
+	) external;
+
+	function repay(
+		address asset,
+		uint256 amount,
+		uint256 interestRateMode,
+		address onBehalfOf
+	) external returns (uint256);
+
+	function repayWithATokens(
+		address asset,
+		uint256 amount,
+		uint256 interestRateMode
+	) external returns (uint256);
+
+	function setUserUseReserveAsCollateral(address asset, bool useAsCollateral)
+		external;
+
+	function swapBorrowRateMode(address asset, uint256 interestRateMode)
+		external;
+
+	function setUserEMode(uint8 categoryId) external;
+}
+
+interface AavePoolProviderInterface {
+	function getPool() external view returns (address);
+}
+
+interface AaveDataProviderInterface {
+	function getReserveTokensAddresses(address _asset)
+		external
+		view
+		returns (
+			address aTokenAddress,
+			address stableDebtTokenAddress,
+			address variableDebtTokenAddress
+		);
+
+	function getUserReserveData(address _asset, address _user)
+		external
+		view
+		returns (
+			uint256 currentATokenBalance,
+			uint256 currentStableDebt,
+			uint256 currentVariableDebt,
+			uint256 principalStableDebt,
+			uint256 scaledVariableDebt,
+			uint256 stableBorrowRate,
+			uint256 liquidityRate,
+			uint40 stableRateLastUpdated,
+			bool usageAsCollateralEnabled
+		);
+
+	function getReserveEModeCategory(address asset)
+		external
+		view
+		returns (uint256);
+}
+
+interface AaveAddressProviderRegistryInterface {
+	function getAddressesProvidersList()
+		external
+		view
+		returns (address[] memory);
+}
+
+interface ATokenInterface {
+	function balanceOf(address _user) external view returns (uint256);
+}

contracts/fantom/connectors/aave/v3/main.sol

@@ -0,0 +1,296 @@
+pragma solidity ^0.7.0;
+
+/**
+ * @title Aave v3.
+ * @dev Lending & Borrowing.
+ */
+
+import { TokenInterface } from "../../../common/interfaces.sol";
+import { Stores } from "../../../common/stores.sol";
+import { Helpers } from "./helpers.sol";
+import { Events } from "./events.sol";
+import { AaveInterface } from "./interface.sol";
+
+abstract contract AaveResolver is Events, Helpers {
+	/**
+	 * @dev Deposit Ftm/ERC20_Token.
+	 * @notice Deposit a token to Aave v3 for lending / collaterization.
+	 * @param token The address of the token to deposit.(For ftm: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
+	 * @param amt The amount of the token to deposit. (For max: `uint256(-1)`)
+	 * @param getId ID to retrieve amt.
+	 * @param setId ID stores the amount of tokens deposited.
+	 */
+	function deposit(
+		address token,
+		uint256 amt,
+		uint256 getId,
+		uint256 setId
+	)
+		external
+		payable
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		uint256 _amt = getUint(getId, amt);
+
+		AaveInterface aave = AaveInterface(aaveProvider.getPool());
+
+		bool isFTM = token == ftmAddr;
+		address _token = isFTM ? wftmAddr : token;
+
+		TokenInterface tokenContract = TokenInterface(_token);
+
+		if (isFTM) {
+			_amt = _amt == uint256(-1) ? address(this).balance : _amt;
+			convertFtmToWftm(isFTM, tokenContract, _amt);
+		} else {
+			_amt = _amt == uint256(-1)
+				? tokenContract.balanceOf(address(this))
+				: _amt;
+		}
+
+		approve(tokenContract, address(aave), _amt);
+
+		aave.supply(_token, _amt, address(this), referralCode);
+
+		if (!getIsColl(_token)) {
+			aave.setUserUseReserveAsCollateral(_token, true);
+		}
+
+		setUint(setId, _amt);
+
+		_eventName = "LogDeposit(address,uint256,uint256,uint256)";
+		_eventParam = abi.encode(token, _amt, getId, setId);
+	}
+
+	/**
+	 * @dev Withdraw ftm/ERC20_Token.
+	 * @notice Withdraw deposited token from Aave v3
+	 * @param token The address of the token to withdraw.(For ftm: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
+	 * @param amt The amount of the token to withdraw. (For max: `uint256(-1)`)
+	 * @param getId ID to retrieve amt.
+	 * @param setId ID stores the amount of tokens withdrawn.
+	 */
+	function withdraw(
+		address token,
+		uint256 amt,
+		uint256 getId,
+		uint256 setId
+	)
+		external
+		payable
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		uint256 _amt = getUint(getId, amt);
+
+		AaveInterface aave = AaveInterface(aaveProvider.getPool());
+		bool isFTM = token == ftmAddr;
+		address _token = isFTM ? wftmAddr : token;
+
+		TokenInterface tokenContract = TokenInterface(_token);
+
+		uint256 initialBal = tokenContract.balanceOf(address(this));
+		aave.withdraw(_token, _amt, address(this));
+		uint256 finalBal = tokenContract.balanceOf(address(this));
+
+		_amt = sub(finalBal, initialBal);
+
+		convertWftmToFtm(isFTM, tokenContract, _amt);
+
+		setUint(setId, _amt);
+
+		_eventName = "LogWithdraw(address,uint256,uint256,uint256)";
+		_eventParam = abi.encode(token, _amt, getId, setId);
+	}
+
+	/**
+	 * @dev Borrow ftm/ERC20_Token.
+	 * @notice Borrow a token using Aave v3
+	 * @param token The address of the token to borrow.(For ftm: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
+	 * @param amt The amount of the token to borrow.
+	 * @param rateMode The type of borrow debt. (For Stable: 1, Variable: 2)
+	 * @param getId ID to retrieve amt.
+	 * @param setId ID stores the amount of tokens borrowed.
+	 */
+	function borrow(
+		address token,
+		uint256 amt,
+		uint256 rateMode,
+		uint256 getId,
+		uint256 setId
+	)
+		external
+		payable
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		uint256 _amt = getUint(getId, amt);
+
+		AaveInterface aave = AaveInterface(aaveProvider.getPool());
+
+		bool isFTM = token == ftmAddr;
+		address _token = isFTM ? wftmAddr : token;
+
+		aave.borrow(_token, _amt, rateMode, referralCode, address(this));
+		convertWftmToFtm(isFTM, TokenInterface(_token), _amt);
+
+		setUint(setId, _amt);
+
+		_eventName = "LogBorrow(address,uint256,uint256,uint256,uint256)";
+		_eventParam = abi.encode(token, _amt, rateMode, getId, setId);
+	}
+
+	/**
+	 * @dev Payback borrowed ftm/ERC20_Token.
+	 * @notice Payback debt owed.
+	 * @param token The address of the token to payback.(For ftm: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
+	 * @param amt The amount of the token to payback. (For max: `uint256(-1)`)
+	 * @param rateMode The type of debt paying back. (For Stable: 1, Variable: 2)
+	 * @param getId ID to retrieve amt.
+	 * @param setId ID stores the amount of tokens paid back.
+	 */
+	function payback(
+		address token,
+		uint256 amt,
+		uint256 rateMode,
+		uint256 getId,
+		uint256 setId
+	)
+		external
+		payable
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		uint256 _amt = getUint(getId, amt);
+
+		AaveInterface aave = AaveInterface(aaveProvider.getPool());
+
+		bool isFTM = token == ftmAddr;
+		address _token = isFTM ? wftmAddr : token;
+
+		TokenInterface tokenContract = TokenInterface(_token);
+
+		_amt = _amt == uint256(-1) ? getPaybackBalance(_token, rateMode) : _amt;
+
+		if (isFTM) convertFtmToWftm(isFTM, tokenContract, _amt);
+
+		approve(tokenContract, address(aave), _amt);
+
+		aave.repay(_token, _amt, rateMode, address(this));
+
+		setUint(setId, _amt);
+
+		_eventName = "LogPayback(address,uint256,uint256,uint256,uint256)";
+		_eventParam = abi.encode(token, _amt, rateMode, getId, setId);
+	}
+
+	/**
+	 * @dev Payback borrowed ftm/ERC20_Token using aTokens.
+	 * @notice Repays a borrowed `amount` on a specific reserve using the reserve aTokens, burning the equivalent debt tokens.
+	 * @param token The address of the token to payback.(For ftm: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
+	 * @param amt The amount of the token to payback. (For max: `uint256(-1)`)
+	 * @param rateMode The type of debt paying back. (For Stable: 1, Variable: 2)
+	 * @param getId ID to retrieve amt.
+	 * @param setId ID stores the amount of tokens paid back.
+	 */
+	function paybackWithATokens(
+		address token,
+		uint256 amt,
+		uint256 rateMode,
+		uint256 getId,
+		uint256 setId
+	)
+		external
+		payable
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		uint256 _amt = getUint(getId, amt);
+
+		AaveInterface aave = AaveInterface(aaveProvider.getPool());
+
+		bool isFTM = token == ftmAddr;
+		address _token = isFTM ? wftmAddr : token;
+
+		TokenInterface tokenContract = TokenInterface(_token);
+
+		_amt = _amt == uint256(-1) ? getPaybackBalance(_token, rateMode) : _amt;
+
+		if (isFTM) convertFtmToWftm(isFTM, tokenContract, _amt);
+
+		approve(tokenContract, address(aave), _amt);
+
+		aave.repayWithATokens(_token, _amt, rateMode);
+
+		setUint(setId, _amt);
+
+		_eventName = "LogPayback(address,uint256,uint256,uint256,uint256)";
+		_eventParam = abi.encode(token, _amt, rateMode, getId, setId);
+	}
+
+	/**
+	 * @dev Enable collateral
+	 * @notice Enable an array of tokens as collateral
+	 * @param tokens Array of tokens to enable collateral
+	 */
+	function enableCollateral(address[] calldata tokens)
+		external
+		payable
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		uint256 _length = tokens.length;
+		require(_length > 0, "0-tokens-not-allowed");
+
+		AaveInterface aave = AaveInterface(aaveProvider.getPool());
+
+		for (uint256 i = 0; i < _length; i++) {
+			address token = tokens[i];
+			if (getCollateralBalance(token) > 0 && !getIsColl(token)) {
+				aave.setUserUseReserveAsCollateral(token, true);
+			}
+		}
+
+		_eventName = "LogEnableCollateral(address[])";
+		_eventParam = abi.encode(tokens);
+	}
+
+	/**
+	 * @dev Swap borrow rate mode
+	 * @notice Swaps user borrow rate mode between variable and stable
+	 * @param token The address of the token to swap borrow rate.(For ftm: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
+	 * @param rateMode Desired borrow rate mode. (Stable = 1, Variable = 2)
+	 */
+	function swapBorrowRateMode(address token, uint256 rateMode)
+		external
+		payable
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		AaveInterface aave = AaveInterface(aaveProvider.getPool());
+
+		uint256 currentRateMode = rateMode == 1 ? 2 : 1;
+
+		if (getPaybackBalance(token, currentRateMode) > 0) {
+			aave.swapBorrowRateMode(token, rateMode);
+		}
+
+		_eventName = "LogSwapRateMode(address,uint256)";
+		_eventParam = abi.encode(token, rateMode);
+	}
+
+	/**
+	 * @dev Set user e-mode
+	 * @notice Updates the user's e-mode category
+	 * @param categoryId The category Id of the e-mode user want to set
+	 */
+	function setUserEMode(uint8 categoryId)
+		external
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		AaveInterface aave = AaveInterface(aaveProvider.getPool());
+
+		aave.setUserEMode(categoryId);
+
+		_eventName = "LogSetUserEMode(uint8)";
+		_eventParam = abi.encode(categoryId);
+	}
+}
+
+contract ConnectV2AaveV3Fantom is AaveResolver {
+	string public constant name = "AaveV3-v1";
+}

contracts/mainnet/connectors/aave/v3/main.sol

@@ -14,7 +14,7 @@ import { AaveInterface } from "./interface.sol";
 abstract contract AaveResolver is Events, Helpers {
 	/**
 	 * @dev Deposit ETH/ERC20_Token.
-	 * @notice Deposit a token to Aave v2 for lending / collaterization.
+	 * @notice Deposit a token to Aave v3 for lending / collaterization.
 	 * @param token The address of the token to deposit.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
 	 * @param amt The amount of the token to deposit. (For max: `uint256(-1)`)
 	 * @param getId ID to retrieve amt.
@@ -64,7 +64,7 @@ abstract contract AaveResolver is Events, Helpers {
 
 	/**
 	 * @dev Withdraw ETH/ERC20_Token.
-	 * @notice Withdraw deposited token from Aave v2
+	 * @notice Withdraw deposited token from Aave v3
 	 * @param token The address of the token to withdraw.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
 	 * @param amt The amount of the token to withdraw. (For max: `uint256(-1)`)
 	 * @param getId ID to retrieve amt.
@@ -104,7 +104,7 @@ abstract contract AaveResolver is Events, Helpers {
 
 	/**
 	 * @dev Borrow ETH/ERC20_Token.
-	 * @notice Borrow a token using Aave v2
+	 * @notice Borrow a token using Aave v3
 	 * @param token The address of the token to borrow.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
 	 * @param amt The amount of the token to borrow.
 	 * @param rateMode The type of borrow debt. (For Stable: 1, Variable: 2)

contracts/optimism/connectors/aave/v3/main.sol

@@ -14,7 +14,7 @@ import { AaveInterface } from "./interface.sol";
 abstract contract AaveResolver is Events, Helpers {
 	/**
 	 * @dev Deposit ETH/ERC20_Token.
-	 * @notice Deposit a token to Aave v2 for lending / collaterization.
+	 * @notice Deposit a token to Aave v3 for lending / collaterization.
 	 * @param token The address of the token to deposit.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
 	 * @param amt The amount of the token to deposit. (For max: `uint256(-1)`)
 	 * @param getId ID to retrieve amt.
@@ -64,7 +64,7 @@ abstract contract AaveResolver is Events, Helpers {
 
 	/**
 	 * @dev Withdraw ETH/ERC20_Token.
-	 * @notice Withdraw deposited token from Aave v2
+	 * @notice Withdraw deposited token from Aave v3
 	 * @param token The address of the token to withdraw.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
 	 * @param amt The amount of the token to withdraw. (For max: `uint256(-1)`)
 	 * @param getId ID to retrieve amt.
@@ -104,7 +104,7 @@ abstract contract AaveResolver is Events, Helpers {
 
 	/**
 	 * @dev Borrow ETH/ERC20_Token.
-	 * @notice Borrow a token using Aave v2
+	 * @notice Borrow a token using Aave v3
 	 * @param token The address of the token to borrow.(For ETH: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
 	 * @param amt The amount of the token to borrow.
 	 * @param rateMode The type of borrow debt. (For Stable: 1, Variable: 2)

contracts/polygon/connectors/aave/v3/main.sol

@@ -64,7 +64,7 @@ abstract contract AaveResolver is Events, Helpers {
 
 	/**
 	 * @dev Withdraw matic/ERC20_Token.
-	 * @notice Withdraw deposited token from Aave v2
+	 * @notice Withdraw deposited token from Aave v3
 	 * @param token The address of the token to withdraw.(For matic: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
 	 * @param amt The amount of the token to withdraw. (For max: `uint256(-1)`)
 	 * @param getId ID to retrieve amt.
@@ -104,7 +104,7 @@ abstract contract AaveResolver is Events, Helpers {
 
 	/**
 	 * @dev Borrow matic/ERC20_Token.
-	 * @notice Borrow a token using Aave v2
+	 * @notice Borrow a token using Aave v3
 	 * @param token The address of the token to borrow.(For matic: 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE)
 	 * @param amt The amount of the token to borrow.
 	 * @param rateMode The type of borrow debt. (For Stable: 1, Variable: 2)

hardhat.config.ts

@@ -13,6 +13,7 @@ import { HardhatUserConfig } from "hardhat/config";
 import { NetworkUserConfig } from "hardhat/types";
 import { utils } from "ethers";
 import Web3 from "web3";
+import { network } from "hardhat";
 
 dotenvConfig({ path: resolve(__dirname, "./.env") });
 
@@ -36,34 +37,30 @@ const ETHERSCAN_API = process.env.ETHERSCAN_API_KEY;
 const POLYGONSCAN_API = process.env.POLYGON_API_KEY;
 const ARBISCAN_API = process.env.ARBISCAN_API_KEY;
 const SNOWTRACE_API = process.env.SNOWTRACE_API_KEY;
-const mnemonic =
-  process.env.MNEMONIC ??
-  "test test test test test test test test test test test junk";
+const FANTOMSCAN_API = process.env.FANTOM_API_KEY;
+const mnemonic = process.env.MNEMONIC ?? "test test test test test test test test test test test junk";
 
 const networkGasPriceConfig: Record<string, string> = {
-  "mainnet": "160",
-  "polygon": "50",
-  "avalanche": "50",
-  "arbitrum": "2"
-}
+  mainnet: "160",
+  polygon: "50",
+  avalanche: "50",
+  arbitrum: "2"
+};
 
 function createConfig(network: string) {
   return {
     url: getNetworkUrl(network),
-    accounts: !!PRIVATE_KEY ? [`0x${PRIVATE_KEY}`] : { mnemonic },
+    accounts: !!PRIVATE_KEY ? [`0x${PRIVATE_KEY}`] : { mnemonic }
     // gasPrice: 1000000, // 0.0001 GWEI
   };
 }
 
 function getNetworkUrl(networkType: string) {
-  if (networkType === "avalanche")
-    return "https://api.avax.network/ext/bc/C/rpc";
-  else if (networkType === "polygon")
-    return `https://polygon-mainnet.g.alchemy.com/v2/${alchemyApiKey}`;
-  else if (networkType === "arbitrum")
-    return `https://arb-mainnet.g.alchemy.com/v2/${alchemyApiKey}`;
-  else if (networkType === "optimism")
-    return `https://opt-mainnet.g.alchemy.com/v2/${alchemyApiKey}`;
+  if (networkType === "avalanche") return "https://api.avax.network/ext/bc/C/rpc";
+  else if (networkType === "polygon") return `https://polygon-mainnet.g.alchemy.com/v2/${alchemyApiKey}`;
+  else if (networkType === "arbitrum") return `https://arb-mainnet.g.alchemy.com/v2/${alchemyApiKey}`;
+  else if (networkType === "optimism") return `https://opt-mainnet.g.alchemy.com/v2/${alchemyApiKey}`;
+  else if (networkType === "fantom") return `https://rpc.ftm.tools/`;
   else return `https://eth-mainnet.alchemyapi.io/v2/${alchemyApiKey}`;
 }
 
@@ -85,53 +82,54 @@ const config: HardhatUserConfig = {
         settings: {
           optimizer: {
             enabled: true,
-            runs: 200,
-          },
-        },
+            runs: 200
+          }
+        }
       },
       {
-        version: "0.6.0",
+        version: "0.6.0"
       },
       {
-        version: "0.6.2",
+        version: "0.6.2"
       },
       {
-        version: "0.6.5",
-      },
-    ],
+        version: "0.6.5"
+      }
+    ]
   },
   networks: {
     hardhat: {
       accounts: {
-        mnemonic,
+        mnemonic
       },
       chainId: chainIds.hardhat,
       forking: {
-        url: String(getNetworkUrl(String(process.env.networkType))),
-      },
+        url: String(getNetworkUrl(String(process.env.networkType)))
+      }
     },
     mainnet: createConfig("mainnet"),
     polygon: createConfig("polygon"),
     avalanche: createConfig("avalanche"),
     arbitrum: createConfig("arbitrum"),
     optimism: createConfig("optimism"),
+    fantom: createConfig("optimism")
   },
   paths: {
     artifacts: "./artifacts",
     cache: "./cache",
     sources: "./contracts",
-    tests: "./test",
+    tests: "./test"
   },
-  etherscan: { 
-     apiKey: getScanApiKey(String(process.env.networkType)),
+  etherscan: {
+    apiKey: getScanApiKey(String(process.env.networkType))
   },
   typechain: {
     outDir: "typechain",
-    target: "ethers-v5",
+    target: "ethers-v5"
   },
   mocha: {
-    timeout: 10000 * 1000, // 10,000 seconds
-  },
+    timeout: 10000 * 1000 // 10,000 seconds
+  }
   // tenderly: {
   //   project: process.env.TENDERLY_PROJECT,
   //   username: process.env.TENDERLY_USERNAME,