Merge pull request #28 from hollow-leaf/feat/wormhole

feat: wormhole support

.gitignore

@@ -39,4 +39,5 @@ artifacts/
 temp
 
 #zk-circuits
-typechain/
+typechain/
+cache/

packages/zk-circuits/contracts/WormKamuiDst.sol

@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity >=0.7.0 <0.9.0;
+
+import "./interface/IWormhole.sol";
+import "./interface/IWormholeReceiver.sol";
+import "@openzeppelin/contracts/access/Ownable.sol";
+
+contract WormKamuiDst is Ownable, IWormholeReceiver {
+    struct Voter {
+        bool voted;
+    }
+
+    struct Proposal {
+        string name;
+        address creator;
+        uint acceptCount;
+        uint denyCount;
+        uint256 endTime;
+    }
+
+    struct MyMessage {
+        address recipient;
+        string message;
+    }
+
+    event Voted(address indexed from, uint256 proposal, bool accept);
+
+    // goerli core bridge: https://book.wormhole.com/reference/contracts.html#testnet
+    address private whAddr = 0x706abc4E45D419950511e474C7B9Ed348A4a716c;
+    IWormhole public immutable wormhole = IWormhole(whAddr);
+
+
+    mapping(uint16 => bytes32) public registeredContracts;
+    mapping(bytes32 => bool) public hasProcessedMessage;
+    string[] public messageHistory;
+
+
+    mapping(address => mapping(uint256 => Voter)) public voters;
+
+    mapping(uint256 => Proposal) public proposals;
+
+    mapping(address => uint[1]) public users;
+
+    uint public totalProposals = 0;
+
+    function createProposals(string calldata name, uint256 continueSec) public {
+        Proposal storage poll = proposals[totalProposals];
+        poll.creator = msg.sender;
+        poll.name = name;
+        poll.endTime = block.timestamp + continueSec;
+        totalProposals += 1;
+    }
+
+    function vote(
+        uint256 proposal,
+        bool accept
+    ) public {
+        Voter storage sender = voters[msg.sender][proposal];
+        require(block.timestamp < proposals[proposal].endTime, "Vote End");
+        require(!sender.voted, "Already voted.");
+        sender.voted = true;
+        if (accept) proposals[proposal].acceptCount += 1;
+        else proposals[proposal].denyCount += 1;
+        emit Voted(msg.sender, proposal, accept);
+    }
+
+    function getResult(uint256 proposal) public view returns (bool) {
+        require(block.timestamp > proposals[proposal].endTime, "Vote Not End");
+        if (proposals[proposal].acceptCount > proposals[proposal].denyCount)
+            return true;
+        else return false;
+    }
+
+    function getBlockTime() public view returns (uint256) {
+        return block.timestamp;
+    }
+
+    function registerEmitter(uint16 chainId, bytes32 emitterAddress) public {
+        // require(msg.sender == owner);
+        registeredContracts[chainId] = emitterAddress;
+    }
+
+    function receiveWormholeMessages(
+        bytes[] memory signedVaas,
+        bytes[] memory
+    ) public payable override {
+        (IWormhole.VM memory parsed, bool valid, string memory reason)
+            = wormhole.parseAndVerifyVM(signedVaas[0]);
+
+        require(valid, reason);
+        require(
+            registeredContracts[parsed.emitterChainId] == parsed.emitterAddress,
+            "Emitter address not valid"
+        );
+
+        require(!hasProcessedMessage[parsed.hash]);
+
+        MyMessage memory message = abi.decode(parsed.payload, (MyMessage));
+        require(message.recipient == address(this));
+
+        hasProcessedMessage[parsed.hash] = true;
+        messageHistory.push(message.message);
+    }
+
+    function getFullMessageHistory() public view returns (string[] memory) {
+        return messageHistory;
+    }
+}