physfs-deserialize-context.hpp

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/*
 * Copyright (C) 2023  Christopher J. Howard
 *
 * This file is part of Antkeeper source code.
 *
 * Antkeeper source code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Antkeeper source code is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Antkeeper source code.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#ifndef ANTKEEPER_RESOURCES_PHYSFS_DESERIALIZE_CONTEXT_HPP
#define ANTKEEPER_RESOURCES_PHYSFS_DESERIALIZE_CONTEXT_HPP
 
#include <engine/resources/deserialize-context.hpp>
#include <physfs.h>
#include <filesystem>
 
class physfs_deserialize_context: public deserialize_context
{
public:
    explicit physfs_deserialize_context(const std::filesystem::path& path) noexcept(false);
    
    physfs_deserialize_context() noexcept = default;
    
    virtual ~physfs_deserialize_context();
    
    void open(const std::filesystem::path& path) noexcept(false);
    
    void close() noexcept;
    
    [[nodiscard]] bool is_open() const noexcept;
    
    [[nodiscard]] const std::filesystem::path& path() const noexcept override;
    [[nodiscard]] bool error() const noexcept override;
    [[nodiscard]] bool eof() const noexcept override;
    [[nodiscard]] std::size_t size() const noexcept override;
    [[nodiscard]] std::size_t tell() const override;
    void seek(std::size_t offset) override;
    std::size_t read8(std::byte* data, std::size_t count) noexcept(false) override;
    std::size_t read16_le(std::byte* data, std::size_t count) noexcept(false) override;
    std::size_t read16_be(std::byte* data, std::size_t count) noexcept(false) override;
    std::size_t read32_le(std::byte* data, std::size_t count) noexcept(false) override;
    std::size_t read32_be(std::byte* data, std::size_t count) noexcept(false) override;
    std::size_t read64_le(std::byte* data, std::size_t count) noexcept(false) override;
    std::size_t read64_be(std::byte* data, std::size_t count) noexcept(false) override;
    
private:
    PHYSFS_File* m_file{nullptr};
    std::filesystem::path m_path;
    bool m_eof{true};
    bool m_error{false};
};
 
#endif // ANTKEEPER_RESOURCES_PHYSFS_DESERIALIZE_CONTEXT_HPP