Initial commit

contracts/interfaces/IOracleAdapter.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.24;
+
+/**
+ * @title IOracleAdapter
+ * @notice Interface for oracle adapter
+ * @dev Standardizes pricing from multiple oracle sources
+ */
+interface IOracleAdapter {
+    enum OracleSource {
+        AAVE,
+        CHAINLINK,
+        UNISWAP_TWAP,
+        FALLBACK
+    }
+
+    /**
+     * @notice Price data structure
+     * @param price Price (scaled by 1e8 for USD pairs)
+     * @param source Oracle source used
+     * @param timestamp Timestamp of price update
+     * @param confidence Confidence score (0-1e18, where 1e18 = 100%)
+     */
+    struct PriceData {
+        uint256 price;
+        OracleSource source;
+        uint256 timestamp;
+        uint256 confidence;
+    }
+
+    /**
+     * @notice Get latest price for an asset
+     * @param asset Asset address
+     * @return priceData Price data structure
+     */
+    function getPrice(address asset) external view returns (PriceData memory priceData);
+
+    /**
+     * @notice Get latest price with max age requirement
+     * @param asset Asset address
+     * @param maxAge Maximum age of price in seconds
+     * @return priceData Price data structure
+     */
+    function getPriceWithMaxAge(
+        address asset,
+        uint256 maxAge
+    ) external view returns (PriceData memory priceData);
+
+    /**
+     * @notice Get aggregated price from multiple sources
+     * @param asset Asset address
+     * @return price Aggregated price (scaled by 1e8)
+     * @return confidence Weighted confidence score
+     */
+    function getAggregatedPrice(address asset) external view returns (uint256 price, uint256 confidence);
+
+    /**
+     * @notice Convert amount from one asset to another using prices
+     * @param fromAsset Source asset
+     * @param fromAmount Amount in source asset
+     * @param toAsset Destination asset
+     * @return toAmount Amount in destination asset
+     */
+    function convertAmount(
+        address fromAsset,
+        uint256 fromAmount,
+        address toAsset
+    ) external view returns (uint256 toAmount);
+}
+