import 'dart:convert';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import 'package:http/http.dart' as http;

class UserDeviceItem {
  const UserDeviceItem({
    required this.id,
    required this.name,
    required this.platform,
    required this.status,
    required this.lastSeenAt,
  });
  final String id, name, platform, status;
  final DateTime lastSeenAt;
  factory UserDeviceItem.fromJson(Map<String, Object?> json) => UserDeviceItem(
    id: json['id']! as String,
    name: json['name']! as String,
    platform: json['platform']! as String,
    status: json['status']! as String,
    lastSeenAt: DateTime.parse(json['lastSeenAt']! as String),
  );
}

class DeviceRepository {
  DeviceRepository({required this.client, required this.baseUrl});
  static const _storage = FlutterSecureStorage();
  final http.Client client;
  final String baseUrl;

  Future<List<UserDeviceItem>> list() async {
    final response = await client.get(Uri.parse('$baseUrl/devices'));
    if (response.statusCode < 200 || response.statusCode >= 300) {
      throw Exception('设备列表加载失败');
    }
    return (jsonDecode(response.body) as List)
        .map(
          (item) =>
              UserDeviceItem.fromJson(Map<String, Object?>.from(item as Map)),
        )
        .toList();
  }

  Future<void> revoke(String id) async {
    final response = await client.delete(Uri.parse('$baseUrl/devices/$id'));
    if (response.statusCode < 200 || response.statusCode >= 300) {
      throw Exception('撤销设备失败');
    }
  }

  Future<bool> isCurrent(String id) async =>
      await _storage.read(key: 'device_id') == id;
}