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

import 'hardware_bindings_generated.dart';

const String _libName = 'hardware';

/// The dynamic library in which the symbols for [HardwareBindings] can be found.
final DynamicLibrary _dylib = () {
  if (Platform.isMacOS || Platform.isIOS) {
    return DynamicLibrary.open('$_libName.framework/$_libName');
  }
  if (Platform.isAndroid || Platform.isLinux) {
    return DynamicLibrary.open('lib$_libName.so');
  }
  if (Platform.isWindows) {
    return DynamicLibrary.open('$_libName.dll');
  }
  throw UnsupportedError('Unknown platform: ${Platform.operatingSystem}');
}();

/// The bindings to the native functions in [_dylib].
final HardwareBindings _bindings = HardwareBindings(_dylib);

/// Hardware screen information.
class HardwareScreen {
  /// Returns the device screen corner radius in logical pixels.
  /// Returns null on platforms where the value is not available.
  double? get borderRadius {
    final result = _bindings.get_screen_border_radius();
    if (result.hasValue == 0) return null;
    return result.value;
  }
}

/// Main Hardware API for accessing device hardware information.
abstract class Hardware {
  static final HardwareScreen screen = HardwareScreen();
}