import 'dart:ffi';
import 'dart:io';

abstract class Lib {
  static DynamicLibrary? _daliLib;
  static String? _base;

  static DynamicLibrary _loadDaliLib(String base) {
    if (Platform.isIOS || Platform.isMacOS) {
      return DynamicLibrary.executable();
    } else if (Platform.isWindows) {
      return DynamicLibrary.open('$base.dll');
    } else {
      return DynamicLibrary.open('$base.so');
    }
  }

  static DynamicLibrary init(String base) {
    _base = base;
    _daliLib = _loadDaliLib(base);

    return _daliLib!;
  }

  static DynamicLibrary get shared {
    if (_daliLib == null) {
      throw Exception('Library not initialized !');
    }
    return _daliLib!;
  }

  static String get base {
    if (_base == null) {
      throw Exception('Library not initialized !');
    }
    return _base!;
  }
}