Schema Registry Smart Contract

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