/*
 * Error message handling from the C++ to the Python world.
 *
 * Author: Malte J. Ziebarth (malte.ziebarth@tum.de)
 *
 * Copyright (C) 2025 Technische Universität München
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 *
 *    1. Redistributions of source code must retain the above copyright notice, this
 *       list of conditions and the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice,
 *       this list of conditions and the following disclaimer in the documentation
 *       and/or other materials provided with the distribution.
 *    3. Neither the name of the copyright holder nor the names of its contributors
 *       may be used to endorse or promote products derived from this software
 *       without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * SPDX-FileCopyrightText: 2026 Technical University of Munich
 * SPDX-License-Identifier: BSD-3-Clause
 * SPDX-FileContributor: Malte J. Ziebarth <malte.ziebarth@tum.de>
 */

#include <funktionsklempner/strings.hpp>
#include <objektbuch/objectbook.hpp>


namespace funktionsklempner {
class StringObject : public std::string
{
public:
    StringObject(const std::string_view& sv) : std::string(sv)
    {}
};


using ObjectBook = objektbuch::ObjectBook<
    size_t,
    StringObject
>;


static ObjectBook objects;


size_t create_string(const std::string_view& sview)
{
    return objects.emplace(StringObject(sview));
}


size_t create_string(const std::u8string_view& sview)
{
    std::string s(sview.begin(), sview.end());
    return objects.emplace(StringObject(s));
}

} // namespace funktionsklempner

/*
 * Errors:
 */

using funktionsklempner::objects;
using funktionsklempner::StringObject;

int funktionsklempner_get_string(
    size_t oid,
    FKString* message
)
{
    if (!message)
        return -1;

    try {
        /* Get the error message: */
       auto msg = objects.get<StringObject>(oid);

       /* Fill the struct: */
       message->message = msg->data();
       message->size = msg->size();

       return 0;
    } catch (...){
        return -2;
    }
}


int funktionsklempner_delete_string(
    size_t oid
)
{
    try {
        /* Make sure that this is actually an error message: */
        auto msg = objects.get<StringObject>(oid);

        /* Then delete: */
        objects.erase(oid);

        return 0;
    } catch (...){
        return -1;
    }
}