Schema Registry Smart Contract

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;
interface ISchemaRegistry {
    struct SchemaRecord {
        string schemaId;
        string name;
        string version;
        address author;
        bytes32 schemaHash;
        string storageUri;
        uint256 created;
        bool active;
    }
    event SchemaCreated(string indexed schemaId, string name, string version, address indexed author);
    event SchemaDeactivated(string indexed schemaId);
    function createSchema(
        string calldata schemaId,
        string calldata name,
        string calldata version,
        bytes32 schemaHash,
        string calldata storageUri
    ) external;
    function getSchema(string calldata schemaId) external view returns (SchemaRecord memory);
    function listSchemas(uint256 offset, uint256 limit) external view returns (SchemaRecord[] memory);
    function deactivateSchema(string calldata schemaId) external;
    function getSchemaCount() external view returns (uint256);
}