feat: add ILiquidator interface

Author: doomsower

contracts/Liquidator.sol

@@ -8,6 +8,7 @@ import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
 import {SafeERC20} from "@1inch/solidity-utils/contracts/libraries/SafeERC20.sol";
 
 import {IRouterV3, RouterResult} from "./interfaces/IRouterV3.sol";
+import {ILiquidator, LiquidationResult} from "./interfaces/ILiquidator.sol";
 import {IPartialLiquidationBotV3} from "@gearbox-protocol/bots-v3/contracts/interfaces/IPartialLiquidationBotV3.sol";
 import {ICreditManagerV3} from "@gearbox-protocol/core-v3/contracts/interfaces/ICreditManagerV3.sol";
 import {ICreditFacadeV3} from "@gearbox-protocol/core-v3/contracts/interfaces/ICreditFacadeV3.sol";
@@ -17,13 +18,6 @@ import {MultiCall, MultiCallOps} from "@gearbox-protocol/core-v2/contracts/libra
 import {AaveFLTaker} from "./AaveFLTaker.sol";
 import {IAavePoolFlashLoan} from "./interfaces/IAavePoolFlashLoan.sol";
 
-struct LiquidationResult {
-    MultiCall[] calls;
-    int256 profit;
-    uint256 amountIn;
-    uint256 amountOut;
-}
-
 struct IntermediateData {
     bool preview;
     address creditManager;
@@ -39,7 +33,7 @@ struct IntermediateData {
     uint256 initialUnderlyingBalance;
 }
 
-contract Liquidator is Ownable {
+contract Liquidator is ILiquidator, Ownable {
     using SafeERC20 for IERC20;
     using MultiCallOps for MultiCall[];
 

contracts/interfaces/ILiquidator.sol

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: BUSL-1.1
+// Gearbox Protocol. Generalized leverage for DeFi protocols
+// (c) Gearbox Foundation, 2024
+pragma solidity ^0.8.17;
+
+import {IPartialLiquidationBotV3} from "@gearbox-protocol/bots-v3/contracts/interfaces/IPartialLiquidationBotV3.sol";
+import {MultiCall} from "@gearbox-protocol/core-v2/contracts/libraries/MultiCall.sol";
+
+struct LiquidationResult {
+    MultiCall[] calls;
+    int256 profit;
+    uint256 amountIn;
+    uint256 amountOut;
+}
+
+interface ILiquidator {
+    function cmToCA(address cm) external view returns (address);
+
+    function partialLiquidateAndConvert(
+        address creditManager,
+        address creditAccount,
+        address assetOut,
+        uint256 amountOut,
+        uint256 flashLoanAmount,
+        IPartialLiquidationBotV3.PriceUpdate[] calldata priceUpdates,
+        MultiCall[] calldata conversionCalls
+    ) external;
+
+    function previewPartialLiquidation(
+        address creditManager,
+        address creditAccount,
+        address assetOut,
+        uint256 amountOut,
+        uint256 flashLoanAmount,
+        IPartialLiquidationBotV3.PriceUpdate[] calldata priceUpdates,
+        address[] calldata connectors,
+        uint256 slippage
+    ) external returns (LiquidationResult memory res);
+}