Added DIA Aggregator Oracle Contract superOETH-USD on Base

contracts/diadata/DiaDataAggregator.sol

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+// SPDX-License-Identifier: GPL-3.0
+
+// ███████╗███████╗██████╗  ██████╗
+// ╚══███╔╝██╔════╝██╔══██╗██╔═══██╗
+//   ███╔╝ █████╗  ██████╔╝██║   ██║
+//  ███╔╝  ██╔══╝  ██╔══██╗██║   ██║
+// ███████╗███████╗██║  ██║╚██████╔╝
+// ╚══════╝╚══════╝╚═╝  ╚═╝ ╚═════╝
+
+// Website: https://zerolend.xyz
+// Discord: https://discord.gg/zerolend
+// Twitter: https://twitter.com/zerolendxyz
+
+pragma solidity ^0.8.12;
+
+import {IDiaData} from "../interfaces/IDiaData.sol";
+import {IAggregatorInterface} from "../interfaces/IAggregatorInterface.sol";
+
+/**
+ * @title DiaDataAggregator
+ * @notice Aggregator contract for fetching data from the DiaData oracle.
+ * @dev Implements the `IAggregatorInterface` to provide standardized access to the DiaData oracle.
+ */
+contract DiaDataAggregator is IAggregatorInterface {
+    /// @notice Address of the DiaData consumer contract.
+    IDiaData public consumer;
+
+    /// @notice Default key to fetch data from the DiaData oracle.
+    string public defaultKey;
+
+    /**
+     * @notice Constructor to initialize the DiaDataAggregator contract.
+     * @param _consumer Address of the DiaData consumer contract.
+     * @param _defaultKey Default key to fetch data from the oracle.
+     */
+    constructor(address _consumer, string memory _defaultKey) {
+        consumer = IDiaData(_consumer);
+        defaultKey = _defaultKey;
+    }
+
+    /**
+     * @notice Returns the description of the aggregator.
+     * @dev Provides a human-readable description of the aggregator's purpose.
+     * @return string The description of the DiaDataAggregator.
+     */
+    function description() external pure returns (string memory) {
+        return "DiaData Aggregator for fetching price from DIA Oracle";
+    }
+
+    /**
+     * @notice Returns the number of decimals used by the aggregator.
+     * @dev Overrides the `decimals` function of the `IAggregatorInterface`.
+     * @return uint8 The number of decimals (fixed to 8).
+     */
+    function decimals() external pure override returns (uint8) {
+        return 8;
+    }
+
+    /**
+     * @notice Retrieves the latest answer from the DiaData oracle.
+     * @dev Fetches the value corresponding to the `defaultKey` from the DiaData consumer.
+     * @return int256 The latest answer as an integer.
+     */
+    function latestAnswer() external view override returns (int256) {
+        (uint128 value, ) = consumer.getValue(defaultKey);
+        return int256(uint256(value));
+    }
+
+    /**
+     * @notice Retrieves the latest timestamp from the DiaData oracle.
+     * @dev Fetches the timestamp corresponding to the `defaultKey` from the DiaData consumer.
+     * @return uint256 The latest timestamp as a Unix epoch time.
+     */
+    function latestTimestamp() external view returns (uint256) {
+        (, uint128 timestamp) = consumer.getValue(defaultKey);
+        return uint256(timestamp);
+    }
+}

contracts/interfaces/IDiaData.sol

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+// SPDX-License-Identifier: GPL-3.0
+
+// ███████╗███████╗██████╗  ██████╗
+// ╚══███╔╝██╔════╝██╔══██╗██╔═══██╗
+//   ███╔╝ █████╗  ██████╔╝██║   ██║
+//  ███╔╝  ██╔══╝  ██╔══██╗██║   ██║
+// ███████╗███████╗██║  ██║╚██████╔╝
+// ╚══════╝╚══════╝╚═╝  ╚═╝ ╚═════╝
+
+// Website: https://zerolend.xyz
+// Discord: https://discord.gg/zerolend
+// Twitter: https://twitter.com/zerolendxyz
+
+pragma solidity ^0.8.12;
+
+interface IDiaData {
+    function getValue(string memory key) external view returns (uint128, uint128);
+}