removed pricing strategies in favor of meta oracle

Author: aalavandhan

spot-vaults/contracts/_interfaces/IMetaOracle.sol

@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: BUSL-1.1
+
+/// @notice Oracle adapter for AMPL and its family of assets.
+// solhint-disable-next-line compiler-version
+interface IMetaOracle {
+    /// @return Number of decimals representing the prices returned.
+    function decimals() external pure returns (uint8);
+
+    /// @return price The price of USDC tokens in dollars.
+    /// @return isValid True if the returned price is valid.
+    function usdcPrice() external returns (uint256 price, bool isValid);
+
+    /// @notice Computes the deviation between SPOT's market price and FMV price.
+    /// @return deviation The computed deviation factor.
+    /// @return isValid True if the returned deviation is valid.
+    function spotPriceDeviation() external returns (uint256 deviation, bool isValid);
+
+    /// @notice Computes the deviation between AMPL's market price and price target.
+    /// @return deviation The computed deviation factor.
+    /// @return isValid True if the returned deviation is valid.
+    function amplPriceDeviation() external returns (uint256 deviation, bool isValid);
+
+    /// @return price The price of SPOT in dollars.
+    /// @return isValid True if the returned price is valid.
+    function spotUsdPrice() external returns (uint256 price, bool isValid);
+
+    /// @return price The price of AMPL in dollars.
+    /// @return isValid True if the returned price is valid.
+    function amplUsdPrice() external returns (uint256 price, bool isValid);
+
+    /// @return price The SPOT FMV price in dollars.
+    /// @return isValid True if the returned price is valid.
+    function spotFmvUsdPrice() external returns (uint256 price, bool isValid);
+
+    /// @return price The AMPL target price in dollars.
+    /// @return isValid True if the returned price is valid.
+    function amplTargetUsdPrice() external returns (uint256 price, bool isValid);
+
+    /// @return price The WAMPL price in dollars.
+    /// @return isValid True if the returned price is valid.
+    function wamplUsdPrice() external returns (uint256 price, bool isValid);
+
+    /// @return price The ETH price in dollars.
+    /// @return isValid True if the returned price is valid.
+    function ethUsdPrice() external returns (uint256 price, bool isValid);
+}

spot-vaults/contracts/_interfaces/IPerpPricer.sol

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: BUSL-1.1
+
+/// @notice Oracle contract to price perps and its underlying token.
+// solhint-disable-next-line compiler-version
+interface IPerpPricer {
+    /// @return Number of decimals representing the prices returned.
+    function decimals() external pure returns (uint8);
+
+    /// @return price The price of reference USD tokens.
+    /// @return isValid True if the returned price is valid.
+    function usdPrice() external returns (uint256 price, bool isValid);
+
+    /// @return price The price of perp tokens in dollars.
+    /// @return isValid True if the returned price is valid.
+    function perpUsdPrice() external returns (uint256 price, bool isValid);
+
+    /// @return price The price of underlying tokens (which back perp) in dollars.
+    /// @return isValid True if the returned price is valid.
+    function underlyingUsdPrice() external returns (uint256 price, bool isValid);
+
+    /// @return price Perp's fmv price in dollars.
+    /// @return isValid True if the returned price is valid.
+    function perpFmvUsdPrice() external returns (uint256 price, bool isValid);
+}