package funkin.mods;

import lime.utils.AssetLibrary;

/**
 * Used to prevent crashes
 */
class ModdableAssetsFolder extends ModsFolderLibrary {
    public var oldLibrary:AssetLibrary;

    public override function exists(id:String, type:String) {
        if (!id.startsWith("assets/") && !exists('assets/$id', type))
            return oldLibrary.exists(id, type);
        return super.exists(id, type);
    }

    public override function getAsset(id:String, type:String) {
        if (!id.startsWith("assets/")) {
            var possibleReplacement = getAsset('assets/$id', type);
            if (possibleReplacement != null)
                return possibleReplacement;
            return oldLibrary.getAsset(id, type);
        }
        return super.getAsset(id, type);
    }

    public function new(folder:String, libName:String, oldLib:AssetLibrary) {
        super(folder, libName);
        oldLibrary = oldLib;
        trace(Type.getClassName(Type.getClass(oldLibrary)));
    }

    private override function __parseAsset(asset:String):Bool {
        var prefix = 'assets/';
        if (!asset.startsWith(prefix)) return false;
        _parsedAsset = asset.substr(prefix.length);
        return true;
    }
}