/*****************************************************************************
 * Copyright (c) 2014-2020 OpenRCT2 developers
 *
 * For a complete list of all authors, please refer to contributors.md
 * Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
 *
 * OpenRCT2 is licensed under the GNU General Public License version 3.
 *****************************************************************************/

#pragma once

#include "../common.h"
#include "../core/JsonFwd.hpp"
#include "../drawing/Drawing.h"

#include <memory>
#include <vector>

struct Image;
struct IReadObjectContext;
namespace OpenRCT2
{
    struct IStream;
}

class ImageTable
{
private:
    std::unique_ptr<uint8_t[]> _data;
    std::vector<rct_g1_element> _entries;

    /**
     * Container for a G1 image, additional information and RAII. Used by ReadJson
     */
    struct RequiredImage;
    [[nodiscard]] std::vector<std::pair<std::string, Image>> GetImageSources(IReadObjectContext* context, json_t& jsonImages);
    [[nodiscard]] static std::vector<std::unique_ptr<ImageTable::RequiredImage>> ParseImages(
        IReadObjectContext* context, std::string s);
    /**
     * @note root is deliberately left non-const: json_t behaviour changes when const
     */
    [[nodiscard]] static std::vector<std::unique_ptr<ImageTable::RequiredImage>> ParseImages(
        IReadObjectContext* context, std::vector<std::pair<std::string, Image>>& imageSources, json_t& el);
    [[nodiscard]] static std::vector<std::unique_ptr<ImageTable::RequiredImage>> LoadObjectImages(
        IReadObjectContext* context, const std::string& name, const std::vector<int32_t>& range);
    [[nodiscard]] static std::vector<int32_t> ParseRange(std::string s);
    [[nodiscard]] static std::string FindLegacyObject(const std::string& name);

public:
    ImageTable() = default;
    ImageTable(const ImageTable&) = delete;
    ImageTable& operator=(const ImageTable&) = delete;
    ~ImageTable();

    void Read(IReadObjectContext* context, OpenRCT2::IStream* stream);
    /**
     * @note root is deliberately left non-const: json_t behaviour changes when const
     */
    bool ReadJson(IReadObjectContext* context, json_t& root);
    const rct_g1_element* GetImages() const
    {
        return _entries.data();
    }
    uint32_t GetCount() const
    {
        return static_cast<uint32_t>(_entries.size());
    }
    void AddImage(const rct_g1_element* g1);
};