Create ComplianceProtocol.sol

blockchain_integration/pi_network/PiComply/contracts/ComplianceProtocol.sol

@@ -0,0 +1,75 @@
+pragma solidity ^0.8.0;
+
+import "https://github.com/OpenZeppelin/openzeppelin-solidity/contracts/access/Roles.sol";
+import "https://github.com/OpenZeppelin/openzeppelin-solidity/contracts/math/SafeMath.sol";
+import "https://github.com/chainlink/chainlink-contracts/contracts/src/v0.8/ChainlinkClient.sol";
+
+contract ComplianceProtocol {
+    using Roles for address;
+    using SafeMath for uint256;
+
+    // Events
+    event NewComplianceRequest(address indexed requester, uint256 requestId);
+    event ComplianceRequestFulfilled(address indexed requester, uint256 requestId, bool complianceStatus);
+    event ComplianceRequestRejected(address indexed requester, uint256 requestId, string reason);
+
+    // Structs
+    struct ComplianceRequest {
+        address requester;
+        uint256 requestId;
+        string regulatoryRequirement;
+        uint256 timestamp;
+        bool fulfilled;
+        bool rejected;
+    }
+
+    // Mapping of compliance requests
+    mapping (uint256 => ComplianceRequest) public complianceRequests;
+
+    // Mapping of regulatory requirements to their corresponding compliance statuses
+    mapping (string => bool) public regulatoryCompliance;
+
+    // Chainlink oracle address
+    address public oracleAddress;
+
+    // Constructor
+    constructor(address _oracleAddress) public {
+        oracleAddress = _oracleAddress;
+    }
+
+    // Function to request compliance check
+    function requestComplianceCheck(string memory _regulatoryRequirement) public {
+        uint256 requestId = uint256(keccak256(abi.encodePacked(_regulatoryRequirement, block.timestamp)));
+        ComplianceRequest storage request = complianceRequests[requestId];
+        request.requester = msg.sender;
+        request.requestId = requestId;
+        request.regulatoryRequirement = _regulatoryRequirement;
+        request.timestamp = block.timestamp;
+        request.fulfilled = false;
+        request.rejected = false;
+        emit NewComplianceRequest(msg.sender, requestId);
+    }
+
+    // Function to fulfill compliance request
+    function fulfillComplianceRequest(uint256 _requestId, bool _complianceStatus) public onlyOracle {
+        ComplianceRequest storage request = complianceRequests[_requestId];
+        require(request.requester != address(0), "Invalid request ID");
+        request.fulfilled = true;
+        regulatoryCompliance[request.regulatoryRequirement] = _complianceStatus;
+        emit ComplianceRequestFulfilled(request.requester, _requestId, _complianceStatus);
+    }
+
+    // Function to reject compliance request
+    function rejectComplianceRequest(uint256 _requestId, string memory _reason) public onlyOracle {
+        ComplianceRequest storage request = complianceRequests[_requestId];
+        require(request.requester != address(0), "Invalid request ID");
+        request.rejected = true;
+        emit ComplianceRequestRejected(request.requester, _requestId, _reason);
+    }
+
+    // Modifier to restrict access to only the oracle
+    modifier onlyOracle {
+        require(msg.sender == oracleAddress, "Only the oracle can fulfill or reject compliance requests");
+        _;
+    }
+}