#pragma once

#include "WallpaperEngine/Assets/ITexture.h"

#include <filesystem>
#include <string>

namespace WallpaperEngine::Assets {
/**
 * File container, provides access to files for backgrounds
 */
class CContainer {
  public:
    virtual ~CContainer () = default;

    /**
     * Resolves the full path to the specified file in the filesystem
     *
     * @param filename
     * @return
     */
    [[nodiscard]] virtual std::filesystem::path resolveRealFile (const std::filesystem::path& filename) const;

    /**
     * Reads the given file from the container and returns it's data
     * Additionally sets a length parameter to return back the file's length
     *
     * The returned string must be deleted[] by the caller
     *
     * @param filename The file to read
     * @param length The file's length after it's been read, null for not getting anything back
     *
     * @return
     */
    [[nodiscard]] virtual std::shared_ptr<const uint8_t[]> readFile (const std::filesystem::path& filename, uint32_t* length) const = 0;

    /**
     * Wrapper for readFile, appends the texture extension at the end of the filename
     *
     * @param filename The texture name (without the .tex)
     *
     * @return
     */
    [[nodiscard]] std::shared_ptr <const ITexture> readTexture (const std::filesystem::path& filename) const;

    /**
     * Wrapper for readFile, checks for compat versions of the given shader file
     *
     * @param filename
     *
     * @return The shader code as an string to be used
     */
    [[nodiscard]] std::string readShader (const std::filesystem::path& filename) const;

    /**
     * Wrapper for readFile, appends the .vert extension at the end and opens the given shader file
     *
     * @param filename
     *
     * @return The shader code as an string to be used
     */
    [[nodiscard]] std::string readVertexShader (const std::filesystem::path& filename) const;

    /**
     * Wrapper for readFile, appends the .frag extension at the end and opens the given shader file
     *
     * @param filename
     *
     * @return The shader code as an string to be used
     */
    [[nodiscard]] std::string readFragmentShader (const std::filesystem::path& filename) const;

    /**
     * Wrapper for readFile, appends the .h extension at the end and opens the given shader file
     *
     * @param filename
     *
     * @return The shader code as an string to be used
     */
    [[nodiscard]] std::string readIncludeShader (const std::filesystem::path& filename) const;

    /**
     * Reads a file as string
     *
     * @param filename
     *
     * @return The file's contents as string
     */
    [[nodiscard]] std::string readFileAsString (const std::filesystem::path& filename) const;
};
} // namespace WallpaperEngine::Assets