add view function

.openzeppelin/bsc-testnet.json

@@ -3181,7 +3181,7 @@
             "label": "bool",
             "numberOfBytes": "1"
           },
-          "t_struct(InitializableStorage)119_storage": {
+          "t_struct(InitializableStorage)73_storage": {
             "label": "struct Initializable.InitializableStorage",
             "members": [
               {
@@ -3199,7 +3199,7 @@
             ],
             "numberOfBytes": "32"
           },
-          "t_struct(ReentrancyGuardStorage)527_storage": {
+          "t_struct(ReentrancyGuardStorage)288_storage": {
             "label": "struct ReentrancyGuardUpgradeable.ReentrancyGuardStorage",
             "members": [
               {
@@ -4394,6 +4394,185 @@
           ]
         }
       }
+    },
+    "dc3d954e8140fb833cc048d63ec3b0b1c2bae49df5774f288830e88ab47eea38": {
+      "address": "0xf4cE104E687F5d2064481cbD5B24ED52d7C324b0",
+      "txHash": "0x254270c14cb61720fc0be515fb41c1ce98a62c5ae6bd9505cde700dcf0b4233e",
+      "layout": {
+        "solcVersion": "0.8.28",
+        "storage": [
+          {
+            "label": "gov",
+            "offset": 0,
+            "slot": "0",
+            "type": "t_address",
+            "contract": "YTPoolManager",
+            "src": "contracts/ytLp/core/YTPoolManager.sol:40"
+          },
+          {
+            "label": "ytVault",
+            "offset": 0,
+            "slot": "1",
+            "type": "t_address",
+            "contract": "YTPoolManager",
+            "src": "contracts/ytLp/core/YTPoolManager.sol:41"
+          },
+          {
+            "label": "usdy",
+            "offset": 0,
+            "slot": "2",
+            "type": "t_address",
+            "contract": "YTPoolManager",
+            "src": "contracts/ytLp/core/YTPoolManager.sol:42"
+          },
+          {
+            "label": "ytLP",
+            "offset": 0,
+            "slot": "3",
+            "type": "t_address",
+            "contract": "YTPoolManager",
+            "src": "contracts/ytLp/core/YTPoolManager.sol:44"
+          },
+          {
+            "label": "cooldownDuration",
+            "offset": 0,
+            "slot": "4",
+            "type": "t_uint256",
+            "contract": "YTPoolManager",
+            "src": "contracts/ytLp/core/YTPoolManager.sol:45"
+          },
+          {
+            "label": "lastAddedAt",
+            "offset": 0,
+            "slot": "5",
+            "type": "t_mapping(t_address,t_uint256)",
+            "contract": "YTPoolManager",
+            "src": "contracts/ytLp/core/YTPoolManager.sol:45"
+          },
+          {
+            "label": "isHandler",
+            "offset": 0,
+            "slot": "6",
+            "type": "t_mapping(t_address,t_bool)",
+            "contract": "YTPoolManager",
+            "src": "contracts/ytLp/core/YTPoolManager.sol:47"
+          },
+          {
+            "label": "aumAddition",
+            "offset": 0,
+            "slot": "7",
+            "type": "t_uint256",
+            "contract": "YTPoolManager",
+            "src": "contracts/ytLp/core/YTPoolManager.sol:50"
+          },
+          {
+            "label": "aumDeduction",
+            "offset": 0,
+            "slot": "8",
+            "type": "t_uint256",
+            "contract": "YTPoolManager",
+            "src": "contracts/ytLp/core/YTPoolManager.sol:52"
+          },
+          {
+            "label": "__gap",
+            "offset": 0,
+            "slot": "9",
+            "type": "t_array(t_uint256)50_storage",
+            "contract": "YTPoolManager",
+            "src": "contracts/ytLp/core/YTPoolManager.sol:345"
+          }
+        ],
+        "types": {
+          "t_bool": {
+            "label": "bool",
+            "numberOfBytes": "1"
+          },
+          "t_struct(InitializableStorage)7_storage": {
+            "label": "struct Initializable.InitializableStorage",
+            "members": [
+              {
+                "label": "_initialized",
+                "type": "t_uint64",
+                "offset": 0,
+                "slot": "0"
+              },
+              {
+                "label": "_initializing",
+                "type": "t_bool",
+                "offset": 8,
+                "slot": "0"
+              }
+            ],
+            "numberOfBytes": "32"
+          },
+          "t_struct(ReentrancyGuardStorage)222_storage": {
+            "label": "struct ReentrancyGuardUpgradeable.ReentrancyGuardStorage",
+            "members": [
+              {
+                "label": "_status",
+                "type": "t_uint256",
+                "offset": 0,
+                "slot": "0"
+              }
+            ],
+            "numberOfBytes": "32"
+          },
+          "t_uint256": {
+            "label": "uint256",
+            "numberOfBytes": "32"
+          },
+          "t_uint64": {
+            "label": "uint64",
+            "numberOfBytes": "8"
+          },
+          "t_address": {
+            "label": "address",
+            "numberOfBytes": "20"
+          },
+          "t_array(t_uint256)50_storage": {
+            "label": "uint256[50]",
+            "numberOfBytes": "1600"
+          },
+          "t_mapping(t_address,t_bool)": {
+            "label": "mapping(address => bool)",
+            "numberOfBytes": "32"
+          },
+          "t_mapping(t_address,t_uint256)": {
+            "label": "mapping(address => uint256)",
+            "numberOfBytes": "32"
+          }
+        },
+        "namespaces": {
+          "erc7201:openzeppelin.storage.ReentrancyGuard": [
+            {
+              "contract": "ReentrancyGuardUpgradeable",
+              "label": "_status",
+              "type": "t_uint256",
+              "src": "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol:43",
+              "offset": 0,
+              "slot": "0"
+            }
+          ],
+          "erc7201:openzeppelin.storage.Initializable": [
+            {
+              "contract": "Initializable",
+              "label": "_initialized",
+              "type": "t_uint64",
+              "src": "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol:69",
+              "offset": 0,
+              "slot": "0"
+            },
+            {
+              "contract": "Initializable",
+              "label": "_initializing",
+              "type": "t_bool",
+              "src": "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol:73",
+              "offset": 8,
+              "slot": "0"
+            }
+          ]
+        }
+      }
     }
   }
 }

abis/IYTPoolManager.json

@@ -43,6 +43,35 @@
     "stateMutability": "nonpayable",
     "type": "function"
   },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "_token",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_amount",
+        "type": "uint256"
+      }
+    ],
+    "name": "getAddLiquidityOutput",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "usdyAmount",
+        "type": "uint256"
+      },
+      {
+        "internalType": "uint256",
+        "name": "ytLPMintAmount",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
   {
     "inputs": [
       {
@@ -81,6 +110,35 @@
     "stateMutability": "view",
     "type": "function"
   },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "_tokenOut",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_ytLPAmount",
+        "type": "uint256"
+      }
+    ],
+    "name": "getRemoveLiquidityOutput",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "usdyAmount",
+        "type": "uint256"
+      },
+      {
+        "internalType": "uint256",
+        "name": "amountOut",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
   {
     "inputs": [
       {

abis/YTPoolManager.json

@@ -480,6 +480,35 @@
     "stateMutability": "view",
     "type": "function"
   },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "_token",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_amount",
+        "type": "uint256"
+      }
+    ],
+    "name": "getAddLiquidityOutput",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "usdyAmount",
+        "type": "uint256"
+      },
+      {
+        "internalType": "uint256",
+        "name": "ytLPMintAmount",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
   {
     "inputs": [
       {
@@ -518,6 +547,35 @@
     "stateMutability": "view",
     "type": "function"
   },
+  {
+    "inputs": [
+      {
+        "internalType": "address",
+        "name": "_tokenOut",
+        "type": "address"
+      },
+      {
+        "internalType": "uint256",
+        "name": "_ytLPAmount",
+        "type": "uint256"
+      }
+    ],
+    "name": "getRemoveLiquidityOutput",
+    "outputs": [
+      {
+        "internalType": "uint256",
+        "name": "usdyAmount",
+        "type": "uint256"
+      },
+      {
+        "internalType": "uint256",
+        "name": "amountOut",
+        "type": "uint256"
+      }
+    ],
+    "stateMutability": "view",
+    "type": "function"
+  },
   {
     "inputs": [],
     "name": "gov",

contracts/interfaces/IYTPoolManager.sol

@@ -21,6 +21,7 @@ interface IYTPoolManager {
     
     function getPrice(bool _maximise) external view returns (uint256);
     function getAumInUsdy(bool _maximise) external view returns (uint256);
+    function getAddLiquidityOutput(address _token, uint256 _amount) external view returns (uint256 usdyAmount, uint256 ytLPMintAmount);
+    function getRemoveLiquidityOutput(address _tokenOut, uint256 _ytLPAmount) external view returns (uint256 usdyAmount, uint256 amountOut);
     function onLPTransfer(address _from, address _to) external;
-}
+}
-

contracts/ytLp/core/YTPoolManager.sol

@@ -286,10 +286,60 @@ contract YTPoolManager is Initializable, UUPSUpgradeable, ReentrancyGuardUpgrade
         return aum;
     }
     
+    /**
+     * @notice 预估添加流动性能获得的 ytLP 数量
+     * @param _token 存入的 token 地址
+     * @param _amount 存入的 token 数量
+     * @return usdyAmount 扣除手续费后实际得到的 USDY 数量
+     * @return ytLPMintAmount 预计铸造的 ytLP 数量
+     */
+    function getAddLiquidityOutput(
+        address _token,
+        uint256 _amount
+    ) external view returns (uint256 usdyAmount, uint256 ytLPMintAmount) {
+        // 模拟 buyUSDY：token → USDY（含动态手续费）
+        uint256 price = IYTVault(ytVault).getMinPrice(_token);
+        uint256 rawUsdyAmount = _amount * price / PRICE_PRECISION;
+        uint256 feeBasisPoints = IYTVault(ytVault).getSwapFeeBasisPoints(_token, usdy, rawUsdyAmount);
+        uint256 amountAfterFees = _amount - (_amount * feeBasisPoints / BASIS_POINTS_DIVISOR);
+        usdyAmount = amountAfterFees * price / PRICE_PRECISION;
+
+        // 模拟 _addLiquidity：USDY → ytLP mint 数量
+        uint256 aumInUsdy = getAumInUsdy(true);
+        uint256 ytLPSupply = IERC20(ytLP).totalSupply();
+        if (ytLPSupply == 0) {
+            ytLPMintAmount = usdyAmount;
+        } else {
+            ytLPMintAmount = usdyAmount * ytLPSupply / aumInUsdy;
+        }
+    }
+
+    /**
+     * @notice 预估移除流动性能获得的 token 数量
+     * @param _tokenOut 取出的 token 地址
+     * @param _ytLPAmount 销毁的 ytLP 数量
+     * @return usdyAmount ytLP 对应的 USDY 价值
+     * @return amountOut 扣除手续费后实际获得的 token 数量
+     */
+    function getRemoveLiquidityOutput(
+        address _tokenOut,
+        uint256 _ytLPAmount
+    ) external view returns (uint256 usdyAmount, uint256 amountOut) {
+        // 模拟 _removeLiquidity：ytLP → USDY
+        uint256 aumInUsdy = getAumInUsdy(false);
+        uint256 ytLPSupply = IERC20(ytLP).totalSupply();
+        usdyAmount = _ytLPAmount * aumInUsdy / ytLPSupply;
+
+        // 模拟 sellUSDY：USDY → token（含动态手续费）
+        uint256 price = IYTVault(ytVault).getMaxPrice(_tokenOut);
+        uint256 redemptionAmount = usdyAmount * PRICE_PRECISION / price;
+        uint256 feeBasisPoints = IYTVault(ytVault).getRedemptionFeeBasisPoints(_tokenOut, redemptionAmount);
+        amountOut = redemptionAmount * (BASIS_POINTS_DIVISOR - feeBasisPoints) / BASIS_POINTS_DIVISOR;
+    }
+
     /**
      * @dev 预留存储空间，用于未来升级时添加新的状态变量
      * 50个slot = 50 * 32 bytes = 1600 bytes
      */
     uint256[50] private __gap;
-}
+}
-

deployments-ytlp.json

@@ -22,11 +22,21 @@
     },
     "YTPoolManager": {
       "proxy": "0xb11824eAA659F8A4648711709dA60720d5Cdabd2",
-      "implementation": "0x144cC96e9b1DC5EC118DF49167DA83048A3050ae"
+      "implementation": "0xf4cE104E687F5d2064481cbD5B24ED52d7C324b0"
     },
     "YTRewardRouter": {
       "proxy": "0x5af5A51F7702024E7387bba7497DC9965C00F16E",
       "implementation": "0x3688CDd7A25613E7b1E7E0ee1aA46c21F66D27F3"
     }
-  }
+  },
+  "upgradeHistory": [
+    {
+      "timestamp": "2026-03-09T02:23:16.418Z",
+      "contract": "YTPoolManager",
+      "oldImplementation": "0x144cC96e9b1DC5EC118DF49167DA83048A3050ae",
+      "newImplementation": "0xf4cE104E687F5d2064481cbD5B24ED52d7C324b0",
+      "upgrader": "0xa013422A5918CD099C63c8CC35283EACa99a705d"
+    }
+  ],
+  "lastUpdate": "2026-03-09T02:23:16.418Z"
 }

out/build-info/eabedd7944f1777c.json

@@ -1 +1 @@
-{"id":"d81065d09c259d5f","source_id_to_path":{"0":"lib/forge-std/src/Base.sol","1":"lib/forge-std/src/Script.sol","2":"lib/forge-std/src/StdChains.sol","3":"lib/forge-std/src/StdCheats.sol","4":"lib/forge-std/src/StdConstants.sol","5":"lib/forge-std/src/StdJson.sol","6":"lib/forge-std/src/StdMath.sol","7":"lib/forge-std/src/StdStorage.sol","8":"lib/forge-std/src/StdStyle.sol","9":"lib/forge-std/src/StdUtils.sol","10":"lib/forge-std/src/Vm.sol","11":"lib/forge-std/src/console.sol","12":"lib/forge-std/src/console2.sol","13":"lib/forge-std/src/interfaces/IMulticall3.sol","14":"lib/forge-std/src/safeconsole.sol","15":"scripts/test.s.sol"},"language":"Solidity"}
+{"id":"eabedd7944f1777c","source_id_to_path":{"0":"lib/forge-std/src/Base.sol","1":"lib/forge-std/src/Script.sol","2":"lib/forge-std/src/StdChains.sol","3":"lib/forge-std/src/StdCheats.sol","4":"lib/forge-std/src/StdConstants.sol","5":"lib/forge-std/src/StdJson.sol","6":"lib/forge-std/src/StdMath.sol","7":"lib/forge-std/src/StdStorage.sol","8":"lib/forge-std/src/StdStyle.sol","9":"lib/forge-std/src/StdUtils.sol","10":"lib/forge-std/src/Vm.sol","11":"lib/forge-std/src/console.sol","12":"lib/forge-std/src/console2.sol","13":"lib/forge-std/src/interfaces/IMulticall3.sol","14":"lib/forge-std/src/safeconsole.sol","15":"scripts/test.s.sol"},"language":"Solidity"}

scripts/test.s.sol

@@ -12,7 +12,7 @@ contract TestFun is Script {
     function run() external {
 
         address from = 0xa013422A5918CD099C63c8CC35283EACa99a705d; 
-        address to   = 0x7f9eEA491eE53045594ee4669327f0355aCd0e58; 
+        address to   = 0x20B94C5E5b7361552E0548161a58696aA6FeDBd4; 
 
         bytes memory data = hex"7229bc3c0000000000000000000000000000000000000000000000000de0b6b3a7640000";
 

scripts/upgrade/upgradeYTPoolManager.ts

@@ -59,7 +59,7 @@ async function main() {
     console.log("🔄 Phase 2: 验证升级结果");
 
     console.log("  YTPoolManager Proxy (不变):", upgradedYTPoolManagerAddress);
-    console.log("  Owner:", await upgradedYTPoolManager.owner());
+    console.log("  Gov:", await upgradedYTPoolManager.gov()); 
     console.log("");
 
     // ========== 保存更新的部署信息 ==========