package funkin;

import flixel.graphics.frames.FlxAtlasFrames;
import openfl.utils.AssetType;
import openfl.utils.Assets as OpenFlAssets;

/**
 * A core class which handles determining asset paths.
 */
class Paths
{
  static var currentLevel:String;

  static public function setCurrentLevel(name:String)
  {
    currentLevel = name.toLowerCase();
  }

  static function getPath(file:String, type:AssetType, library:Null<String>)
  {
    if (library != null) return getLibraryPath(file, library);

    if (currentLevel != null)
    {
      var levelPath = getLibraryPathForce(file, currentLevel);
      if (OpenFlAssets.exists(levelPath, type)) return levelPath;
    }

    var levelPath = getLibraryPathForce(file, "shared");
    if (OpenFlAssets.exists(levelPath, type)) return levelPath;

    return getPreloadPath(file);
  }

  static public function getLibraryPath(file:String, library = "preload")
  {
    return if (library == "preload" || library == "default") getPreloadPath(file); else getLibraryPathForce(file, library);
  }

  inline static function getLibraryPathForce(file:String, library:String)
  {
    return '$library:assets/$library/$file';
  }

  inline static function getPreloadPath(file:String)
  {
    return 'assets/$file';
  }

  inline static public function file(file:String, type:AssetType = TEXT, ?library:String)
  {
    return getPath(file, type, library);
  }

  public static inline function animateAtlas(path:String, ?library:String)
  {
    return getLibraryPath('images/$path', library);
  }

  inline static public function txt(key:String, ?library:String)
  {
    return getPath('data/$key.txt', TEXT, library);
  }

  inline static public function frag(key:String, ?library:String)
  {
    return getPath('shaders/$key.frag', TEXT, library);
  }

  inline static public function vert(key:String, ?library:String)
  {
    return getPath('shaders/$key.vert', TEXT, library);
  }

  inline static public function xml(key:String, ?library:String)
  {
    return getPath('data/$key.xml', TEXT, library);
  }

  inline static public function json(key:String, ?library:String)
  {
    return getPath('data/$key.json', TEXT, library);
  }

  static public function sound(key:String, ?library:String)
  {
    return getPath('sounds/$key.${Constants.EXT_SOUND}', SOUND, library);
  }

  inline static public function soundRandom(key:String, min:Int, max:Int, ?library:String)
  {
    return sound(key + FlxG.random.int(min, max), library);
  }

  inline static public function music(key:String, ?library:String)
  {
    return getPath('music/$key.${Constants.EXT_SOUND}', MUSIC, library);
  }

  inline static public function videos(key:String, ?library:String)
  {
    return getPath('videos/$key.${Constants.EXT_VIDEO}', BINARY, library);
  }

  inline static public function voices(song:String, ?suffix:String = '')
  {
    if (suffix == null) suffix = ""; // no suffix, for a sorta backwards compatibility with older-ish voice files

    return 'songs:assets/songs/${song.toLowerCase()}/Voices$suffix.${Constants.EXT_SOUND}';
  }

  inline static public function inst(song:String, ?suffix:String = '')
  {
    return 'songs:assets/songs/${song.toLowerCase()}/Inst$suffix.${Constants.EXT_SOUND}';
  }

  inline static public function image(key:String, ?library:String)
  {
    return getPath('images/$key.png', IMAGE, library);
  }

  inline static public function font(key:String)
  {
    return 'assets/fonts/$key';
  }

  inline static public function ui(key:String, ?library:String)
  {
    return xml('ui/$key', library);
  }

  static public function getSparrowAtlas(key:String, ?library:String)
  {
    return FlxAtlasFrames.fromSparrow(image(key, library), file('images/$key.xml', library));
  }

  inline static public function getPackerAtlas(key:String, ?library:String)
  {
    return FlxAtlasFrames.fromSpriteSheetPacker(image(key, library), file('images/$key.txt', library));
  }
}