Merge pull request #42 from zeriontech/updated-curve-pool

Added sUSD curve pool

Author: sobolev-igor

contracts/adapters/curve/CurveTokenAdapter.sol

@@ -44,6 +44,7 @@ contract CurveTokenAdapter is TokenAdapter {
     address internal constant COMPOUND_POOL_TOKEN = 0x845838DF265Dcd2c412A1Dc9e959c7d08537f8a2;
     address internal constant Y_POOL_TOKEN = 0xdF5e0e81Dff6FAF3A7e52BA697820c5e32D806A8;
     address internal constant BUSD_POOL_TOKEN = 0x3B3Ac5386837Dc563660FB6a0937DFAa5924333B;
+    address internal constant SUSD_POOL_TOKEN = 0xC25a3A3b969415c80451098fa907EC722572917F;
 
     /**
      * @return TokenMetadata struct with ERC20-style token info.
@@ -52,7 +53,7 @@ contract CurveTokenAdapter is TokenAdapter {
     function getMetadata(address token) external view override returns (TokenMetadata memory) {
         return TokenMetadata({
             token: token,
-            name: string(abi.encodePacked(ERC20(token).symbol(), " pool")),
+            name: getPoolName(token),
             symbol: ERC20(token).symbol(),
             decimals: ERC20(token).decimals()
         });
@@ -87,8 +88,24 @@ contract CurveTokenAdapter is TokenAdapter {
             return (stableswap(0x45F783CCE6B7FF23B2ab2D70e416cdb7D6055f51), 4, "YToken");
         } else if (token == BUSD_POOL_TOKEN) {
             return (stableswap(0x79a8C46DeA5aDa233ABaFFD40F3A0A2B1e5A4F27), 4, "YToken");
+        } else if (token == SUSD_POOL_TOKEN) {
+            return (stableswap(0xA5407eAE9Ba41422680e2e00537571bcC53efBfD), 4, "ERC20");
         } else {
             return (stableswap(address(0)), 0, "");
         }
     }
+
+    function getPoolName(address token) internal pure returns (string memory) {
+        if (token == COMPOUND_POOL_TOKEN) {
+            return "Compound pool";
+        } else if (token == Y_POOL_TOKEN) {
+            return "Y pool";
+        } else if (token == BUSD_POOL_TOKEN) {
+            return "bUSD pool";
+        } else if (token == SUSD_POOL_TOKEN) {
+            return "sUSD pool";
+        } else {
+            return "Unknown pool";
+        }
+    }
 }