snapshot

contracts/lib/ConstFeeRateModel.sol

@@ -0,0 +1,38 @@
+/*
+
+    Copyright 2020 DODO ZOO.
+    SPDX-License-Identifier: Apache-2.0
+
+*/
+
+pragma solidity 0.6.9;
+pragma experimental ABIEncoderV2;
+
+import {IFeeRateModel} from "../intf/IFeeRateModel.sol";
+import {Ownable} from "../lib/Ownable.sol";
+import {InitializableOwnable} from "../lib/InitializableOwnable.sol";
+
+interface IConstFeeRateModel {
+    function init(address owner, uint256 feeRate) external;
+
+    function setFeeRate(uint256 newFeeRate) external;
+
+    function getFeeRate(address, uint256) external view returns (uint256);
+}
+
+contract ConstFeeRateModel is InitializableOwnable, IFeeRateModel {
+    uint256 public _FEE_RATE_;
+
+    function init(address owner, uint256 feeRate) external {
+        initOwner(owner);
+        _FEE_RATE_ = feeRate;
+    }
+
+    function setFeeRate(uint256 newFeeRate) external {
+        _FEE_RATE_ = newFeeRate;
+    }
+
+    function getFeeRate(address, uint256) external override view returns (uint256) {
+        return _FEE_RATE_;
+    }
+}