fix: hardcode round id to 1 at unsupported adapters

Signed-off-by: Reinis Martinsons <[email protected]>

src/adapters/destination-adapters/ChainlinkDestinationAdapter.sol

@@ -1,6 +1,8 @@
 // SPDX-License-Identifier: BUSL-1.1
 pragma solidity 0.8.17;
 
+import {SafeCast} from "openzeppelin-contracts/contracts/utils/math/SafeCast.sol";
+
 import {DecimalLib} from "../lib/DecimalLib.sol";
 import {IAggregatorV3} from "../../interfaces/chainlink/IAggregatorV3.sol";
 import {DiamondRootOval} from "../../DiamondRootOval.sol";
@@ -39,15 +41,22 @@ abstract contract ChainlinkDestinationAdapter is DiamondRootOval, IAggregatorV3
 
     /**
      * @notice Returns the latest Round data.
-     * @return roundId The roundId of the latest answer.
+     * @return roundId The roundId of the latest answer (sources that do not support it hardcodes to 1).
      * @return answer The latest answer in the configured number of decimals.
      * @return startedAt The timestamp when the value was updated.
      * @return updatedAt The timestamp when the value was updated.
-     * @return answeredInRound The roundId of the round in which the answer was computed.
+     * @return answeredInRound The roundId of the round in which the answer was computed (sources that do not support it
+     * hardcodes to 1).
      */
     function latestRoundData() external view returns (uint80, int256, uint256, uint256, uint80) {
         (int256 answer, uint256 updatedAt, uint256 roundId) = internalLatestData();
-        return
-            (uint80(roundId), DecimalLib.convertDecimals(answer, 18, decimals), updatedAt, updatedAt, uint80(roundId));
+
+        return (
+            SafeCast.toUint80(roundId),
+            DecimalLib.convertDecimals(answer, 18, decimals),
+            updatedAt,
+            updatedAt,
+            SafeCast.toUint80(roundId)
+        );
     }
 }

src/adapters/source-adapters/UniswapAnchoredViewSourceAdapter.sol

@@ -70,7 +70,7 @@ abstract contract UniswapAnchoredViewSourceAdapter is SnapshotSource {
      * @param maxTraversal The maximum number of rounds to traverse when looking for historical data.
      * @return answer The answer as of requested timestamp, or earliest available data if not available, in 18 decimals.
      * @return updatedAt The timestamp of the answer.
-     * @return roundId The roundId of the answer (0 for UniswapAnchoredView as it does not support historical lookups).
+     * @return roundId The roundId of the answer (hardcoded to 1 as UniswapAnchoredView does not support it).
      */
     function tryLatestDataAt(uint256 timestamp, uint256 maxTraversal)
         public
@@ -79,6 +79,6 @@ abstract contract UniswapAnchoredViewSourceAdapter is SnapshotSource {
         returns (int256, uint256, uint256)
     {
         Snapshot memory snapshot = _tryLatestDataAt(timestamp, maxTraversal);
-        return (DecimalLib.convertDecimals(snapshot.answer, SOURCE_DECIMALS, 18), snapshot.timestamp, 0);
+        return (DecimalLib.convertDecimals(snapshot.answer, SOURCE_DECIMALS, 18), snapshot.timestamp, 1);
     }
 }