PST2GWT bridge

contracts/pst_bridge.sol

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+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.0;
+
+import "./gwt.sol";
+import "@openzeppelin/contracts/access/Ownable.sol";
+
+contract PSTBridge is Ownable {
+ GWT public gwt;
+
+ // PST到GWT的兑换
+ mapping(bytes32 => uint256) public pst_to_gwt;
+
+ constructor(address _gwt) Ownable(msg.sender) {
+ gwt = GWT(_gwt);
+ }
+
+ function getClaimableGWT(string calldata cookie) public view returns (uint256) {
+ return pst_to_gwt[keccak256(abi.encodePacked(msg.sender, cookie))];
+ }
+
+ function registerPST(address[] calldata recvAddress, string[] calldata cookie, uint256[] calldata pstAmount) onlyOwner public {
+ for (uint i = 0; i < recvAddress.length; i++) {
+ pst_to_gwt[keccak256(abi.encodePacked(recvAddress[i], cookie[i]))] = pstAmount[i] / 210;
+ }
+ }
+
+ function claimGWT(string calldata cookie) public {
+ bytes32 key = keccak256(abi.encodePacked(msg.sender, cookie));
+ require(pst_to_gwt[key] > 0, "no dmc1 amount");
+ uint256 gwtAmount = pst_to_gwt[key];
+ pst_to_gwt[key] = 0;
+
+ gwt.mint(msg.sender, gwtAmount);
+ }
+}