Merge pull request #18 from InstaDApp/curve-vesting-connector-feature

Curve vesting connector feature

contracts/connectors/curve_vesting.sol

@@ -0,0 +1,57 @@
+pragma solidity ^0.6.0;
+
+// import files from common directory
+import { Stores } from "../common/stores.sol";
+import { DSMath } from "../common/math.sol";
+import { TokenInterface } from "../common/interfaces.sol";
+
+interface ICurve {
+  function claim(address addr) external;
+}
+
+contract CurveVestingHelpers is Stores, DSMath {
+  /**
+  * @dev Return Curve Token Address
+  */
+  function getCurveTokenAddr() virtual internal view returns (address) {
+    return 0xD533a949740bb3306d119CC777fa900bA034cd52;
+  }
+
+  /**
+  * @dev Return Curve Vesting Address
+  */
+  function getCurveVestingAddr() virtual internal view returns (address) {
+    return 0x575CCD8e2D300e2377B43478339E364000318E2c;
+  }
+}
+
+contract CurveVestingProtocol is CurveVestingHelpers {
+  event LogClaim(address account, uint256 claimAmount, uint256 getId, uint256 setId);
+
+  /**
+  * @dev Claim Curve DAO Token.
+  * @param getId Get token amount at this ID from `InstaMemory` Contract.
+  * @param setId Set token amount at this ID in `InstaMemory` Contract.
+  */
+  function claim(uint getId, uint setId) external{
+    TokenInterface curveTokenContract = TokenInterface(getCurveTokenAddr());
+
+    uint initialCurveBal = curveTokenContract.balanceOf(address(this));
+    ICurve(getCurveVestingAddr()).claim(address(this));
+    uint finalCurveBal = curveTokenContract.balanceOf(address(this));
+
+    uint claimedAmt = sub(finalCurveBal, initialCurveBal);
+
+    setUint(setId, claimedAmt);
+
+    emit LogClaim(address(this), claimedAmt, getId, setId);
+    bytes32 _eventCode = keccak256("LogClaim(address,uint256,uint256,uint256)");
+    bytes memory _eventParam = abi.encode(address(this), claimedAmt, getId, setId);
+    emitEvent(_eventCode, _eventParam);
+  }
+}
+
+contract ConnectCurveVesting is CurveVestingProtocol {
+  string public name = "Curve-vesting-v1";
+}
+

contracts/tests/MockCurveVesting.sol

@@ -0,0 +1,24 @@
+pragma solidity ^0.6.0;
+
+import { ConnectCurveVestingProtocol } from "../connectors/curve_vesting.sol";
+
+contract MockConnectCurveVestingProtocol is ConnectCurveVestingProtocol{
+  address public curveTokenAddr;
+  address public curveVestingAddr;
+
+  constructor(address _curveVestingAddr, address _curveTokenAddr) public {
+    curveVestingAddr = _curveVestingAddr;
+    curveTokenAddr = _curveTokenAddr;
+  }
+
+  function getCurveTokenAddr() override internal view returns (address) {
+    return curveTokenAddr;
+  }
+
+  function getCurveVestingAddr() override internal view returns (address) {
+    return curveVestingAddr;
+  }
+
+  function emitEvent(bytes32 eventCode, bytes memory eventData) override internal {}
+  function setUint(uint setId, uint val) override internal {}
+}

test/CurveVestingProtocol.js

@@ -0,0 +1,36 @@
+const {
+  BN,           // Big Number support
+  expectEvent,  // Assertions for emitted events
+  expectRevert, // Assertions for transactions that should fail
+  balance,
+  ether
+} = require('@openzeppelin/test-helpers');
+
+const MockContract = artifacts.require("MockContract");
+const MockConnectCurveVestingProtocol = artifacts.require('MockConnectCurveVestingProtocol');
+const erc20ABI = require("./abi/erc20.js");
+const curveVestingABI = require("./abi/curveVesting.json");
+
+contract("ConnectCurveVestingProtocol", async accounts => {
+  const [sender, receiver] =  accounts;
+  let mock, token, curveVesting;
+
+  before(async function(){
+    mock = await MockContract.new();
+    mockConnectCurveVestingProtocol = await MockConnectCurveVestingProtocol.new(mock.address, mock.address)
+    token = new web3.eth.Contract(erc20ABI, mock.address);
+    curveVesting = new web3.eth.Contract(curveVestingABI, mock.address);
+
+    // mocking balanceOf
+    let balanceOf = await token.methods.balanceOf(mockConnectCurveVestingProtocol.address).encodeABI();
+    await mock.givenMethodReturnUint(balanceOf, 10000000);
+  })
+
+  it('can claim CRV', async function() {
+    const tx = await mockConnectCurveVestingProtocol.claim(
+      0,
+      0
+    )
+    expectEvent(tx, "LogClaim");
+  });
+})

test/abi/curveVesting.json

@@ -0,0 +1 @@
+[{"name":"Fund","inputs":[{"type":"address","name":"recipient","indexed":true},{"type":"uint256","name":"amount","indexed":false}],"anonymous":false,"type":"event"},{"name":"Claim","inputs":[{"type":"address","name":"recipient","indexed":true},{"type":"uint256","name":"claimed","indexed":false}],"anonymous":false,"type":"event"},{"name":"ToggleDisable","inputs":[{"type":"address","name":"recipient","indexed":false},{"type":"bool","name":"disabled","indexed":false}],"anonymous":false,"type":"event"},{"name":"CommitOwnership","inputs":[{"type":"address","name":"admin","indexed":false}],"anonymous":false,"type":"event"},{"name":"ApplyOwnership","inputs":[{"type":"address","name":"admin","indexed":false}],"anonymous":false,"type":"event"},{"outputs":[],"inputs":[{"type":"address","name":"_token"},{"type":"uint256","name":"_start_time"},{"type":"uint256","name":"_end_time"},{"type":"bool","name":"_can_disable"},{"type":"address[4]","name":"_fund_admins"}],"stateMutability":"nonpayable","type":"constructor"},{"name":"add_tokens","outputs":[],"inputs":[{"type":"uint256","name":"_amount"}],"stateMutability":"nonpayable","type":"function","gas":39108},{"name":"fund","outputs":[],"inputs":[{"type":"address[100]","name":"_recipients"},{"type":"uint256[100]","name":"_amounts"}],"stateMutability":"nonpayable","type":"function","gas":3962646},{"name":"toggle_disable","outputs":[],"inputs":[{"type":"address","name":"_recipient"}],"stateMutability":"nonpayable","type":"function","gas":40280},{"name":"disable_can_disable","outputs":[],"inputs":[],"stateMutability":"nonpayable","type":"function","gas":21295},{"name":"disable_fund_admins","outputs":[],"inputs":[],"stateMutability":"nonpayable","type":"function","gas":21325},{"name":"vestedSupply","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":4468},{"name":"lockedSupply","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":5465},{"name":"vestedOf","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"_recipient"}],"stateMutability":"view","type":"function","gas":5163},{"name":"balanceOf","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"_recipient"}],"stateMutability":"view","type":"function","gas":6275},{"name":"lockedOf","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"_recipient"}],"stateMutability":"view","type":"function","gas":6305},{"name":"claim","outputs":[],"inputs":[],"stateMutability":"nonpayable","type":"function"},{"name":"claim","outputs":[],"inputs":[{"type":"address","name":"addr"}],"stateMutability":"nonpayable","type":"function"},{"name":"commit_transfer_ownership","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"addr"}],"stateMutability":"nonpayable","type":"function","gas":38032},{"name":"apply_transfer_ownership","outputs":[{"type":"bool","name":""}],"inputs":[],"stateMutability":"nonpayable","type":"function","gas":38932},{"name":"token","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1601},{"name":"start_time","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1631},{"name":"end_time","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1661},{"name":"initial_locked","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"arg0"}],"stateMutability":"view","type":"function","gas":1845},{"name":"total_claimed","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"arg0"}],"stateMutability":"view","type":"function","gas":1875},{"name":"initial_locked_supply","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1751},{"name":"unallocated_supply","outputs":[{"type":"uint256","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1781},{"name":"can_disable","outputs":[{"type":"bool","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1811},{"name":"disabled_at","outputs":[{"type":"uint256","name":""}],"inputs":[{"type":"address","name":"arg0"}],"stateMutability":"view","type":"function","gas":1995},{"name":"admin","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1871},{"name":"future_admin","outputs":[{"type":"address","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1901},{"name":"fund_admins_enabled","outputs":[{"type":"bool","name":""}],"inputs":[],"stateMutability":"view","type":"function","gas":1931},{"name":"fund_admins","outputs":[{"type":"bool","name":""}],"inputs":[{"type":"address","name":"arg0"}],"stateMutability":"view","type":"function","gas":2115}]