JsonValidator.hpp

// SPDX-FileCopyrightText: 2025 Vincent Leroy
// SPDX-License-Identifier: MIT
//
// This file is part of dfx.
//
// Licensed under the MIT License. See the LICENSE file in the project root
// for full license information.
 
#pragma once
 
// Standard includes
#include <memory>
 
// Third-party includes
#include <nlohmann/json.hpp>
 
// Project includes
#include "CopyMoveControl.hpp"
#include "StringMap.hpp"
 
namespace dfx::Utils
{
class JsonValidator
{
    struct SchemaData;
    using SchemaDataPtr = std::unique_ptr<SchemaData>;
 
public:
    struct ValidationResult
    {
        bool valid = false;
        std::vector<std::string> errors;
    };
 
public:
    JsonValidator();
    JsonValidator(JsonValidator && other);
    ~JsonValidator();
    DISABLE_COPY(JsonValidator);
    JsonValidator & operator=(JsonValidator && other);

    void registerSchema(std::string_view id, nlohmann::json schema, bool allowOverride = false);
    bool isRegistered(std::string_view id) const noexcept;
    void deregisterSchema(std::string_view id);
    nlohmann::json schema(std::string_view id) const;
    std::vector<std::string> allSchemaIds() const;

    [[nodiscard]] ValidationResult validate(std::string_view id, nlohmann::json const & json,
                                            nlohmann::json::json_pointer basePath = nlohmann::json::json_pointer{}) const;
 
public:
    [[nodiscard]] static ValidationResult validateOnceWithSchema(nlohmann::json schema, nlohmann::json const & json);
 
private:
    UnorderedStringMap<SchemaDataPtr> _schemaDatas;
};
} // !namespace dfx::Utils