adding .gitattributes for GitHub syntax highlight;

rename synthetix_staking to staking;
Added getPosition to return balance and earned value;
added truffle-config.js for local contract compile;

.gitattributes

@@ -0,0 +1 @@
+*.sol linguist-language=Solidity

contracts/protocols/staking.sol

@@ -0,0 +1,53 @@
+pragma solidity ^0.6.0;
+pragma experimental ABIEncoderV2;
+
+interface TokenInterface {
+  function decimals() external view returns (uint);
+  function totalSupply() external view returns (uint256);
+  function balanceOf(address) external view returns (uint);
+}
+
+interface IStakingRewards {
+  function balanceOf(address) external view returns (uint256);
+  function earned(address) external view returns (uint256);
+}
+
+interface Staking {
+  function getStakingData(string calldata stakingName)
+  external
+  view
+  returns (
+    IStakingRewards stakingContract,
+    TokenInterface stakingToken,
+    bytes32 stakingType
+  );
+}
+
+contract CurveStakingHelpers {
+  /**
+  * @dev Return mapping contract Address
+  */
+  function getStakingAddr() internal virtual view returns (address) {
+    return 0x772590F33eD05b0E83553650BF9e75A04b337526;
+  }
+}
+
+contract Resolver is CurveStakingHelpers {
+
+  function getPosition(address user, string memory stakingPoolName) public view returns (
+    uint stakedBal,
+    uint rewardsEarned,
+    uint tokenBal
+  ) {
+    Staking staking = Staking(getStakingAddr());
+    (IStakingRewards stakingContract, TokenInterface stakingToken, bytes32 stakingType) = staking.getStakingData(stakingPoolName);
+    stakedBal = stakingContract.balanceOf(user);
+    rewardsEarned = stakingContract.earned(user);
+    tokenBal = stakingToken.balanceOf(user);
+  }
+}
+
+
+contract InstaCurveStakingResolver is Resolver {
+  string public constant name = "Synthetix-Staking-Resolver-v1";
+}

contracts/protocols/synthetix_staking.sol

@@ -1,59 +0,0 @@
-pragma solidity ^0.6.0;
-pragma experimental ABIEncoderV2;
-
-interface TokenInterface {
-    function decimals() external view returns (uint);
-    function totalSupply() external view returns (uint256);
-    function balanceOf(address) external view returns (uint);
-}
-
-interface IStakingRewards {
-  function balanceOf(address) external view returns (uint256);
-  function earned(address) external view returns (uint256);
-}
-
-contract CurveStakingHelpers {
-    /**
-     * @dev Return Curve Token Address
-     */
-    function getCurveTokenAddr() internal pure returns (address) {
-        return 0xC25a3A3b969415c80451098fa907EC722572917F;
-    }
-
-    /**
-     * @dev Return Curve sUSD Staking Address
-     */
-    function getCurveStakingAddr() internal pure returns (address) {
-        return 0xDCB6A51eA3CA5d3Fd898Fd6564757c7aAeC3ca92;
-    }
-
-    /**
-    * @dev Return Synthetix Token address.
-    */
-    function getSnxAddr() internal pure returns (address) {
-        return 0xC011a73ee8576Fb46F5E1c5751cA3B9Fe0af2a6F;
-    }
-
-}
-
-
-contract Resolver is CurveStakingHelpers {
-
-    function getStakingPosition(address user) public view returns (
-        uint curveBal,
-        uint stakedBal,
-        uint rewardsEarned,
-        uint snxBal
-    ) {
-        curveBal = TokenInterface(getCurveTokenAddr()).balanceOf(user);
-        IStakingRewards stakingContract = IStakingRewards(getCurveStakingAddr());
-        stakedBal = stakingContract.balanceOf(user);
-        rewardsEarned = stakingContract.earned(user);
-        snxBal = TokenInterface(getSnxAddr()).balanceOf(user);
-    }
-}
-
-
-contract InstaCurveStakingResolver is Resolver {
-    string public constant name = "Curve-SUSD-Staking-Resolver-v1";
-}

truffle-config.js

@@ -0,0 +1,15 @@
+module.exports = {
+  // Configure your compilers
+  compilers: {
+    solc: {
+      version: "v0.6.2",
+      settings: {
+       optimizer: {
+         enabled: true,
+       },
+       // evmVersion: "istanbul"
+      }
+    }
+  }
+}
+