add isCapped view

src/contracts/PriceCapAdapterBase.sol

@@ -208,4 +208,17 @@ abstract contract PriceCapAdapterBase is IPriceCapAdapter {
 
   /// @inheritdoc IPriceCapAdapter
   function getRatio() public view virtual returns (int256);
+
+  /// @inheritdoc IPriceCapAdapter
+  function isCapped() public view virtual returns (bool) {
+    // get the current lst to underlying ratio
+    int256 currentRatio = getRatio();
+
+    // calculate the ratio based on snapshot ratio and max growth rate
+    int256 maxRatio = int256(
+      _snapshotRatio + _maxRatioGrowthPerSecond * (block.timestamp - _snapshotTimestamp)
+    );
+
+    return currentRatio > maxRatio;
+  }
 }

src/contracts/PriceCapAdapterStable.sol

@@ -68,6 +68,14 @@ contract PriceCapAdapterStable is IPriceCapAdapterStable {
     _setPriceCap(priceCap);
   }
 
+  /// @inheritdoc IPriceCapAdapterStable
+  function isCapped() public view virtual returns (bool) {
+    int256 basePrice = ASSET_TO_USD_AGGREGATOR.latestAnswer();
+    int256 priceCap = _priceCap;
+
+    return basePrice > priceCap;
+  }
+
   /**
    * @notice Updates price cap
    * @param priceCap the new price cap

src/interfaces/IPriceCapAdapter.sol

@@ -106,6 +106,11 @@ interface IPriceCapAdapter is ICLSynchronicityPriceAdapter {
    */
   function getMaxYearlyGrowthRatePercent() external view returns (uint256);
 
+  /**
+   * @notice Returns if the price is currently capped
+   */
+  function isCapped() external view returns (bool);
+
   error ACLManagerIsZeroAddress();
   error SnapshotRatioIsZero();
   error SnapshotMayOverflowSoon(uint104 snapshotRatio, uint16 maxYearlyRatioGrowthPercent);

src/interfaces/IPriceCapAdapterStable.sol

@@ -29,6 +29,11 @@ interface IPriceCapAdapterStable is ICLSynchronicityPriceAdapter {
    */
   function setPriceCap(int256 priceCap) external;
 
+  /**
+   * @notice Returns if the price is currently capped
+   */
+  function isCapped() external view returns (bool);
+
   error ACLManagerIsZeroAddress();
   error CallerIsNotRiskOrPoolAdmin();
   error CapLowerThanActualPrice();