#pragma once

#include "foundation/result.h"

#include <cstddef>
#include <cstdint>
#include <span>
#include <string>
#include <string_view>

namespace pp::assets {

constexpr std::size_t ppbr_header_size = 8;
constexpr std::uint16_t ppbr_legacy_major_version = 0;
constexpr std::uint16_t ppbr_legacy_minor_version = 1;

enum class PpbrDataDirectoryPolicy {
    next_to_package,
    override_directory,
};

enum class BrushPackageImageKind {
    brush_tip,
    pattern,
};

struct PpbrHeader {
    std::uint16_t major = 0;
    std::uint16_t minor = 0;
};

struct BrushPackageImageTargetPaths {
    std::string image_path;
    std::string thumbnail_path;
};

struct PpbrExportPaths {
    std::string package_path;
    std::string directory;
    std::string stem;
    std::string extension;
    std::string data_directory;
    bool data_directory_enabled = false;
};

[[nodiscard]] pp::foundation::Status validate_ppbr_header(
    std::string_view magic,
    std::uint16_t major,
    std::uint16_t minor) noexcept;

[[nodiscard]] pp::foundation::Result<PpbrHeader> parse_ppbr_header(
    std::span<const std::byte> bytes) noexcept;

[[nodiscard]] pp::foundation::Result<std::string> normalize_ppbr_export_path(
    std::string_view requested_path);

[[nodiscard]] pp::foundation::Result<PpbrExportPaths> plan_ppbr_export_paths(
    std::string_view requested_path,
    std::string_view override_data_directory,
    bool export_data,
    PpbrDataDirectoryPolicy data_directory_policy);

[[nodiscard]] pp::foundation::Result<BrushPackageImageTargetPaths> plan_brush_package_image_target_paths(
    std::string_view data_path,
    BrushPackageImageKind kind,
    std::string_view image_name,
    std::string_view image_extension);

} // namespace pp::assets