bayological · July 27, 2023 17:10 · Jul 27, 2023
diff --git a/BiPoolManager.sol b/BiPoolManager.sol
@@ -0,0 +1,35 @@
+/**
+ * @title BiPoolExchangeManager
+ * @notice An exchange manager that manages asset exchanges consisting of two assets
+ */
+contract BiPoolManager {
+
+  /**
+   * @notice Execute a token swap with fixed amountIn
+   * @param exchangeId The id of exchange, i.e. PoolExchange to use
+   * @param tokenIn The token to be sold
+   * @param tokenOut The token to be bought
+   * @param amountIn The amount of tokenIn to be sold
+   * @return amountOut The amount of tokenOut to be bought
+   */
+  function swapIn(
+    bytes32 exchangeId,
+    address tokenIn,
+    address tokenOut,
+    uint256 amountIn
+  ) external onlyBroker returns (uint256 amountOut) {
+    PoolExchange memory exchange = getPoolExchange(exchangeId);
+    require(
+      breakerBox.getRateFeedTradingMode(exchange.config.referenceRateFeedID) == TRADING_MODE_BIDIRECTIONAL,
+      "Trading is suspended for this reference rate"
+    );
+
+    uint256 scaledAmountIn = amountIn.mul(tokenPrecisionMultipliers[tokenIn]);
+    (uint256 scaledAmountOut, bool bucketsUpdated) = _getAmountOut(exchange, tokenIn, tokenOut, scaledAmountIn);
+    executeSwap(exchangeId, exchange, tokenIn, scaledAmountIn, scaledAmountOut, bucketsUpdated);
+
+    amountOut = scaledAmountOut.div(tokenPrecisionMultipliers[tokenOut]);
+    return amountOut;
+  }
+
+}