From af79d0b35d3280437e2cc70bfe1a58e8b6ea883e Mon Sep 17 00:00:00 2001
From: ryanbajollari <54822716+rbajollari@users.noreply.github.com>
Date: Tue, 26 Nov 2024 21:45:41 +0100
Subject: [PATCH] feat: OjoPTOraclePriceAdapter (#1)

---
 .env.example                                  |  6 +++
 .gitignore                                    |  2 +-
 ...dleOracle.s.sol => OjoPendleOracles.s.sol} | 17 +++++++++
 src/OjoPTOraclePriceAdapter.sol               | 38 +++++++++++++++++++
 src/interfaces/IPTOracle.sol                  |  6 +++
 .../MinimalAggregatorV3Interface.sol          | 17 +++++++++
 6 files changed, 85 insertions(+), 1 deletion(-)
 rename script/{OjoPendleOracle.s.sol => OjoPendleOracles.s.sol} (51%)
 create mode 100644 src/OjoPTOraclePriceAdapter.sol
 create mode 100644 src/interfaces/IPTOracle.sol
 create mode 100644 src/interfaces/MinimalAggregatorV3Interface.sol

diff --git a/.env.example b/.env.example
index e21592b..81c5248 100644
--- a/.env.example
+++ b/.env.example
@@ -2,5 +2,11 @@ ETH_RPC_URL=
 HOLESKY_RPC_URL=
 ETHERSCAN_API_KEY=
 
+# OjoPendleOracle
 PT_ADDRESS=
 BASE_DISCOUNT_PER_YEAR=
+
+# OjoPTOraclePriceAdapter
+PT_ORACLE=
+MARKET=
+DESCRIPTION=
diff --git a/.gitignore b/.gitignore
index 499e3c5..3ff91c0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,7 +5,7 @@ cache/
 out/
 
 # Ignores development broadcast logs
-!/broadcast
+broadcast
 /broadcast/*/31337/
 /broadcast/**/dry-run/
 
diff --git a/script/OjoPendleOracle.s.sol b/script/OjoPendleOracles.s.sol
similarity index 51%
rename from script/OjoPendleOracle.s.sol
rename to script/OjoPendleOracles.s.sol
index 9f8d057..72311fc 100644
--- a/script/OjoPendleOracle.s.sol
+++ b/script/OjoPendleOracles.s.sol
@@ -3,6 +3,7 @@ pragma solidity 0.8.19;
 
 import {Script} from "forge-std/Script.sol";
 import {OjoPendleOracle} from "src/OjoPendleOracle.sol";
+import {OjoPTOraclePriceAdapter} from "src/OjoPTOraclePriceAdapter.sol";
 import {console} from "forge-std/console.sol";
 
 contract DeployOjoPendleOracle is Script {
@@ -19,3 +20,19 @@ contract DeployOjoPendleOracle is Script {
         console.log("OjoPendleOracle Address:", address(ojoPendleOracle));
     }
 }
+
+contract DeployOjoPTOraclePriceAdapter is Script {
+    function run() external {
+        address _ptoracle = vm.envAddress("PT_ORACLE");
+        address _market = vm.envAddress("MARKET");
+        string memory _description = vm.envString("DESCRIPTION");
+
+        vm.startBroadcast();
+
+        OjoPTOraclePriceAdapter ojoPTOraclePriceAdapter = new OjoPTOraclePriceAdapter(_ptoracle, _market, _description);
+
+        vm.stopBroadcast();
+
+        console.log("OjoPTOraclePriceAdapter Address:", address(ojoPTOraclePriceAdapter));
+    }
+}
diff --git a/src/OjoPTOraclePriceAdapter.sol b/src/OjoPTOraclePriceAdapter.sol
new file mode 100644
index 0000000..ce69806
--- /dev/null
+++ b/src/OjoPTOraclePriceAdapter.sol
@@ -0,0 +1,38 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+pragma solidity >=0.8.19;
+
+import {IPTOracle} from "./interfaces/IPTOracle.sol";
+import {MinimalAggregatorV3Interface} from "./interfaces/MinimalAggregatorV3Interface.sol";
+
+contract OjoPTOraclePriceAdapter is MinimalAggregatorV3Interface {
+    uint8 public constant decimals = 18;
+
+    address public immutable PTOracle;
+
+    address public immutable market;
+
+    string public description;
+
+    constructor(address _ptoracle, address _market, string memory _description) {
+        require(_ptoracle != address(0), "_ptoracle zero address");
+        require(_market != address(0), "_market zero address");
+
+        PTOracle = _ptoracle;
+        market = _market;
+        description = _description;
+    }
+
+    /// @inheritdoc MinimalAggregatorV3Interface
+    /// @dev Returns zero for roundId, startedAt, updatedAt and answeredInRound.
+    /// @dev Silently overflows if `price`'s average is greater than `type(int256).max`.
+    function latestRoundData() external view returns (uint80, int256, uint256, uint256, uint80) {
+        IPTOracle oracle = IPTOracle(PTOracle);
+
+        uint256 price = oracle.getPtToAssetRate(
+            market,
+            900 // 15 mins twap duration
+        );
+
+        return (0, int256(price), 0, 0, 0);
+    }
+}
diff --git a/src/interfaces/IPTOracle.sol b/src/interfaces/IPTOracle.sol
new file mode 100644
index 0000000..c33768a
--- /dev/null
+++ b/src/interfaces/IPTOracle.sol
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+pragma solidity >=0.5.0;
+
+interface IPTOracle {
+    function getPtToAssetRate(address market, uint32 duration) external view returns (uint256);
+}
diff --git a/src/interfaces/MinimalAggregatorV3Interface.sol b/src/interfaces/MinimalAggregatorV3Interface.sol
new file mode 100644
index 0000000..22887af
--- /dev/null
+++ b/src/interfaces/MinimalAggregatorV3Interface.sol
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: MIT
+pragma solidity >=0.5.0;
+
+/// @dev Inspired by
+/// https://github.com/smartcontractkit/chainlink/blob/master/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol
+/// @dev This is the minimal feed interface required by `MorphoChainlinkOracleV2`.
+interface MinimalAggregatorV3Interface {
+    /// @notice Returns the precision of the feed.
+    function decimals() external view returns (uint8);
+
+    /// @notice Returns Chainlink's `latestRoundData` return values.
+    /// @notice Only the `answer` field is used by `MorphoChainlinkOracleV2`.
+    function latestRoundData()
+        external
+        view
+        returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);
+}