citizen: implement Implement: The main contract that aggregates data from various repositories

contracts/EvidenceScout.sol

@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: MIT
+pragma solidity ^0.8.20;
+
+import "./interfaces/RepositoryInterface.sol";
+import "./helpers/RepositoryHelper.sol";
+
+contract EvidenceScout {
+    struct RepositoryRecord {
+        address repositoryAddress;
+        string repositoryName;
+        bytes32 repositoryHash;
+        uint256 lastUpdatedTimestamp;
+        bool isActive;
+    }
+
+    mapping(bytes32 => RepositoryRecord) public repositories;
+    mapping(address => bool) public authorizedAgents;
+    
+    address public owner;
+    uint256 public constant MAX_REPOSITORIES = 100;
+    uint256 public totalRepositories;
+
+    event RepositoryRegistered(
+        bytes32 indexed repositoryId, 
+        address indexed repositoryAddress, 
+        string repositoryName
+    );
+
+    event RepositoryUpdated(
+        bytes32 indexed repositoryId, 
+        address indexed repositoryAddress
+    );
+
+    modifier onlyOwner() {
+        require(msg.sender == owner, "EvidenceScout: Unauthorized access");
+        _;
+    }
+
+    modifier onlyAuthorizedAgent() {
+        require(
+            authorizedAgents[msg.sender] || msg.sender == owner, 
+            "EvidenceScout: Agent not authorized"
+        );
+        _;
+    }
+
+    constructor() {
+        owner = msg.sender;
+        authorizedAgents[msg.sender] = true;
+    }
+
+    function registerRepository(
+        address _repositoryAddress, 
+        string memory _repositoryName
+    ) external onlyAuthorizedAgent {
+        require(
+            _repositoryAddress != address(0), 
+            "EvidenceScout: Invalid repository address"
+        );
+        require(
+            totalRepositories < MAX_REPOSITORIES, 
+            "EvidenceScout: Maximum repositories reached"
+        );
+
+        bytes32 repositoryId = keccak256(
+            abi.encodePacked(_repositoryAddress, _repositoryName)
+        );
+
+        require(
+            repositories[repositoryId].repositoryAddress == address(0), 
+            "EvidenceScout: Repository already exists"
+        );
+
+        RepositoryInterface repositoryContract = RepositoryInterface(_repositoryAddress);
+        
+        try repositoryContract.validateRepository() returns (bool isValid) {
+            require(isValid, "EvidenceScout: Repository validation failed");
+        } catch {
+            revert("EvidenceScout: Repository validation error");
+        }
+
+        repositories[repositoryId] = RepositoryRecord({
+            repositoryAddress: _repositoryAddress,
+            repositoryName: _repositoryName,
+            repositoryHash: keccak256(abi.encodePacked(_repositoryAddress)),
+            lastUpdatedTimestamp: block.timestamp,
+            isActive: true
+        });
+
+        totalRepositories++;
+
+        emit RepositoryRegistered(repositoryId, _repositoryAddress, _repositoryName);
+    }
+
+    function updateRepositoryStatus(
+        bytes32 _repositoryId, 
+        bool _isActive
+    ) external onlyAuthorizedAgent {
+        require(
+            repositories[_repositoryId].repositoryAddress != address(0), 
+            "EvidenceScout: Repository not found"
+        );
+
+        repositories[_repositoryId].isActive = _isActive;
+        repositories[_repositoryId].lastUpdatedTimestamp = block.timestamp;
+
+        emit RepositoryUpdated(
+            _repositoryId, 
+            repositories[_repositoryId].repositoryAddress
+        );
+    }
+
+    function getRepositoryDetails(
+        bytes32 _repositoryId
+    ) external view returns (RepositoryRecord memory) {
+        require(
+            repositories[_repositoryId].repositoryAddress != address(0), 
+            "EvidenceScout: Repository not found"
+        );
+        return repositories[_repositoryId];
+    }
+
+    function addAuthorizedAgent(
+        address _agent
+    ) external onlyOwner {
+        require(_agent != address(0), "EvidenceScout: Invalid agent address");
+        authorizedAgents[_agent] = true;
+    }
+
+    function removeAuthorizedAgent(
+        address _agent
+    ) external onlyOwner {
+        require(_agent != owner, "EvidenceScout: Cannot remove owner");
+        authorizedAgents[_agent] = false;
+    }
+}