import 'package:plugin_platform_interface/plugin_platform_interface.dart';
import 'dart:async';

import 'zhiwen_method_channel.dart';

abstract class ZhiwenPlatform extends PlatformInterface {
  /// Constructs a ZhiwenPlatform.
  ZhiwenPlatform() : super(token: _token);

  static final Object _token = Object();

  static ZhiwenPlatform _instance = MethodChannelZhiwen();

  /// The default instance of [ZhiwenPlatform] to use.
  ///
  /// Defaults to [MethodChannelZhiwen].
  static ZhiwenPlatform get instance => _instance;

  Future<String?> getPlatformVersion();
  Future<bool> openDevice(String devicePath, int baudRate);
  Future<void> closeDevice();
  Future<Map<String, dynamic>> enrollFingerprint(int userId);
  Future<Map<String, dynamic>> verifyFingerprint(int userId);
  Future<Map<String, dynamic>> deleteAllFingerprint();
  Future<Map<String, dynamic>> deleteOneFingerprint(int userId);
  Future<Map<String, dynamic>> identifyFingerprint();
  Future<Map<String, dynamic>> getUserCount();

  /// 获取指纹录入进度事件流
  /// 返回包含 step, totalSteps, progress, message 的 Map
  Stream<Map<String, dynamic>> get progressStream;

  /// Platform-specific implementations should set this with their own
  /// platform-specific class that extends [ZhiwenPlatform] when
  /// they register themselves.
  static set instance(ZhiwenPlatform instance) {
    PlatformInterface.verifyToken(instance, _token);
    _instance = instance;
  }

  // Future<String?> getPlatformVersion() {
  //   throw UnimplementedError('platformVersion() has not been implemented.');
  // }
}