From 33f51725473a03234b8d367389971ee05680c10a Mon Sep 17 00:00:00 2001
From: midnight-commit <43814957+midnight-commit@users.noreply.github.com>
Date: Wed, 8 Feb 2023 11:22:49 +0100
Subject: [PATCH] add UspEchidnaStrategy

---
 .../VariableRewardsStrategyForSA.sol          |  2 +-
 .../avalanche/echidna/UspEchidnaStrategy.sol  | 29 +++++++++++++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 contracts/strategies/avalanche/echidna/UspEchidnaStrategy.sol

diff --git a/contracts/strategies/VariableRewardsStrategyForSA.sol b/contracts/strategies/VariableRewardsStrategyForSA.sol
index d39d2c16..40b6a155 100644
--- a/contracts/strategies/VariableRewardsStrategyForSA.sol
+++ b/contracts/strategies/VariableRewardsStrategyForSA.sol
@@ -9,7 +9,7 @@ import "./VariableRewardsStrategy.sol";
  * @notice Adapter strategy for VariableRewardsStrategy with SA deposit.
  */
 abstract contract VariableRewardsStrategyForSA is VariableRewardsStrategy {
-    address private immutable swapPairDepositToken;
+    address internal immutable swapPairDepositToken;
 
     constructor(
         address _swapPairDepositToken,
diff --git a/contracts/strategies/avalanche/echidna/UspEchidnaStrategy.sol b/contracts/strategies/avalanche/echidna/UspEchidnaStrategy.sol
new file mode 100644
index 00000000..4ae3806f
--- /dev/null
+++ b/contracts/strategies/avalanche/echidna/UspEchidnaStrategy.sol
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: MIT
+pragma solidity 0.8.13;
+
+import "./EchidnaStrategy.sol";
+
+contract UspEchidnaStrategy is EchidnaStrategy {
+    address public constant USP = 0xdaCDe03d7Ab4D81fEDdc3a20fAA89aBAc9072CE2;
+    IERC20 public constant USDC = IERC20(0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E);
+
+    constructor(
+        EchidnaStrategySettings memory _echidnaStrategySettings,
+        VariableRewardsStrategySettings memory _variableRewardsStrategySettings,
+        StrategySettings memory _strategySettings
+    ) EchidnaStrategy(_echidnaStrategySettings, _variableRewardsStrategySettings, _strategySettings) {}
+
+    function assignSwapPairSafely(address _swapPairDepositToken) internal override {}
+
+    function _convertRewardTokenToDepositToken(uint256 _fromAmount) internal override returns (uint256 toAmount) {
+        // swap WAVAX to USDC
+        WAVAX.approve(address(swapPairDepositToken), _fromAmount);
+        uint256 usdcAmount = DexLibrary.swap(_fromAmount, address(WAVAX), address(USDC), IPair(swapPairDepositToken));
+        WAVAX.approve(address(swapPairDepositToken), 0);
+
+        // swap USDC to USP
+        USDC.approve(address(platypusPool), usdcAmount);
+        (toAmount, ) = platypusPool.swap(address(USDC), USP, usdcAmount, 0, address(this), type(uint256).max);
+        USDC.approve(address(platypusPool), 0);
+    }
+}