Merge pull request #272 from Instadapp/Morpho-rewards

Rewards contract set up

contracts/mainnet/connectors/morpho-rewards/events.sol

@@ -0,0 +1,25 @@
+//SPDX-License-Identifier: MIT
+pragma solidity ^0.7.0;
+pragma experimental ABIEncoderV2;
+
+contract Events {
+	event LogClaimedMorpho(
+		address account,
+		uint256 claimable,
+		uint256 setId
+	);
+
+	event LogClaimedAave(
+		address[] poolTokenAddresses,
+		bool tradeForMorphoToken,
+		uint256 amountOfRewards,
+		uint256 setId
+	);
+
+	event LogClaimedCompound(
+		address[] poolTokenAddresses,
+		bool tradeForMorphoToken,
+		uint256 amountOfRewards,
+		uint256 setId
+	);
+}

contracts/mainnet/connectors/morpho-rewards/helpers.sol

@@ -0,0 +1,16 @@
+//SPDX-License-Identifier: MIT
+pragma solidity ^0.7.0;
+pragma experimental ABIEncoderV2;
+import "./interface.sol";
+import { Basic } from "../../common/basic.sol";
+
+abstract contract Helpers is Basic {
+	IMorphoCore public constant MORPHO_COMPOUND =
+		IMorphoCore(0x8888882f8f843896699869179fB6E4f7e3B58888);
+
+	IMorphoCore public constant MORPHO_AAVE =
+		IMorphoCore(0x777777c9898D384F785Ee44Acfe945efDFf5f3E0);
+
+	IMorphoRewardsDistributor public constant MORPHO_REWARDS =
+		IMorphoRewardsDistributor(0x3B14E5C73e0A56D607A8688098326fD4b4292135);
+}

contracts/mainnet/connectors/morpho-rewards/interface.sol

@@ -0,0 +1,17 @@
+//SPDX-License-Identifier: MIT
+pragma solidity ^0.7.0;
+
+interface IMorphoCore {
+	function claimRewards(
+		address[] calldata _tokenAddresses,
+		bool _tradeForMorphoToken
+	) external returns (uint256 _claimedAmount);
+}
+
+interface IMorphoRewardsDistributor {
+	function claim(
+		address _account,
+		uint256 _claimable,
+		bytes32[] calldata _proof
+	) external;
+}

contracts/mainnet/connectors/morpho-rewards/main.sol

@@ -0,0 +1,107 @@
+//SPDX-License-Identifier: MIT
+pragma solidity ^0.7.0;
+pragma experimental ABIEncoderV2;
+import "./helpers.sol";
+import "./events.sol";
+
+/**
+ * @title Morpho Rewards.
+ * @dev Claim Morpho and Underlying Pool Rewards.
+ */
+
+abstract contract MorphoRewards is Helpers, Events {
+	/**
+	 * @dev Claim Pending MORPHO Rewards.
+	 * @notice Claims rewards.
+	 * @param _account The address of the claimer.
+	 * @param _claimable The overall claimable amount of token rewards.
+	 * @param _proof The merkle proof that validates this claim.
+	 */
+	function claimMorpho(
+		address _account,
+		uint256 _claimable,
+		bytes32[] calldata _proof,
+		uint256 _setId
+	)
+		external
+		payable
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		require(_proof.length > 0, "proofs-empty");
+
+		MORPHO_REWARDS.claim(_account, _claimable, _proof);
+
+		setUint(_setId, _claimable);
+
+		_eventName = "LogClaimedMorpho(address,uint256,uint256)";
+		_eventParam = abi.encode(_account, _claimable, _setId);
+	}
+
+	/**
+	 * @dev Claim Underlying Pool Rewards.
+	 * @notice Claims rewards for the given assets.
+	 * @param _poolTokenAddresses The cToken addresses to claim rewards from.
+	 * @param _tradeForMorphoToken Whether or not to trade reward tokens for MORPHO tokens.
+	 * @param _setId Set ID for claimed amount(in COMP).
+	 */
+	function claimCompound(
+		address[] calldata _poolTokenAddresses,
+		bool _tradeForMorphoToken,
+		uint256 _setId
+	)
+		external
+		payable
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		uint256 _amountOfRewards = MORPHO_COMPOUND.claimRewards(
+			_poolTokenAddresses,
+			_tradeForMorphoToken
+		);
+
+		setUint(_setId, _amountOfRewards);
+
+		_eventName = "LogClaimedCompound(address[],bool,uint256,uint256)";
+		_eventParam = abi.encode(
+			_poolTokenAddresses,
+			_tradeForMorphoToken,
+			_amountOfRewards,
+			_setId
+		);
+	}
+
+	/**
+	 * @dev Claim Underlying Pool Rewards.
+	 * @notice Claims rewards for the given assets.
+	 * @param _poolTokenAddresses The assets to claim rewards from (aToken or variable debt token).
+	 * @param _tradeForMorphoToken Whether or not to trade reward tokens for MORPHO tokens.
+	 * @param _setId Set ID for claimed amount(in reward token).
+	 */
+	function claimAave(
+		address[] calldata _poolTokenAddresses,
+		bool _tradeForMorphoToken,
+		uint256 _setId
+	)
+		external
+		payable
+		returns (string memory _eventName, bytes memory _eventParam)
+	{
+		uint256 _amountOfRewards = MORPHO_AAVE.claimRewards(
+			_poolTokenAddresses,
+			_tradeForMorphoToken
+		);
+
+		setUint(_setId, _amountOfRewards);
+
+		_eventName = "LogClaimedAave(address[],bool,uint256,uint256)";
+		_eventParam = abi.encode(
+			_poolTokenAddresses,
+			_tradeForMorphoToken,
+			_amountOfRewards,
+			_setId
+		);
+	}
+}
+
+contract ConnectV2MorphoRewards is MorphoRewards {
+	string public constant name = "Morpho-Rewards-v1.0";
+}