llbzow 的摸鱼日记 (づ￣ 3￣)づ

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class DeviceProfile {
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  final String vendor; // 厂商/品牌
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  final String model;  // 设备型号
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  final int confidence; // 判定置信度得分 (0 - 100)
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  final String evidence; // 判定证据链列表
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  final bool isTargetGnss; // 是否为高精度 GNSS 设备
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  const DeviceProfile({
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    this.vendor = '',
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    this.model = '',
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    this.confidence = 0,
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    this.evidence = '',
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    this.isTargetGnss = false,
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  });
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  String get label => vendor.isEmpty ? '未知设备' : '$vendor $model';
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}
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DeviceProfile classifyBluetoothDevice({
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  required String name,
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  required String id,
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  required String transportType, // 'BLE' 或 'CLASSIC'
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  String serviceUuids = '',      // 多主服务 UUID 拼接字串
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  Map<String, List<String>> vendorTokens = const {},
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  Set<String> serialServiceUuids = const {},
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}) {
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  final text = '$name $id $serviceUuids'.toLowerCase();
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  String vendor = '';
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  String model = '';
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  int confidence = 0;
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  final List<String> evidenceList = [];
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  // 打分决策闭包
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  void hit(String hitVendor, int score, String reason, {String hitModel = ''}) {
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    if (score > confidence) {
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      vendor = hitVendor;
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      model = hitModel;
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      confidence = score;
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    } else if (hitModel.isNotEmpty && vendor == hitVendor && model.isEmpty) {
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      model = hitModel;
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    }
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    evidenceList.add(reason);
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  }
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  // 1. 厂商特征由设备适配配置注入
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  for (final rule in vendorTokens.entries) {
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    if (rule.value.any(text.contains)) {
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      hit(rule.key, 85, '命中受控厂商规则');
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    }
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  }
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  // 2. 串行服务 UUID 同样由受控配置提供
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  final bool hasUartUuid =
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      serialServiceUuids.any((uuid) => serviceUuids.contains(uuid));
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  // 3. 辅助特征匹配：只判断是否像序列号，不记录具体值
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  final bool isSerialLikeName = RegExp(r'\d{6,}').hasMatch(name);
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  // 4. 综合打分裁决
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  final bool hasKeywords = ['rtk', 'gnss', 'gps', 'nmea', 'receiver', 'rover'].any(text.contains);
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  if (hasKeywords || isSerialLikeName || hasUartUuid) {
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    String reason = hasKeywords
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      ? '包含定位终端关键词'
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      : (hasUartUuid ? '包含标准UART服务UUID' : '名称符合设备序列号特征');
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    evidenceList.add(reason);
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    // 如果没有任何强特品牌词匹配，但有辅助词，给予 55 分基准置信度
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    if (confidence == 0) {
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      confidence = 55;
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    }
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  }
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  // 5. 物理链路加分：经典蓝牙 SPP 用于透传数据的高频稳定性，作为加权依据
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  if (transportType == 'CLASSIC' && (hasKeywords || isSerialLikeName)) {
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    evidenceList.add('物理信道为SPP经典串口');
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    if (confidence < 65) {
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      confidence = 65; // 提高评估底线
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    }
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  }
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  return DeviceProfile(
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    vendor: vendor,
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    model: model,
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    confidence: confidence,
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    evidence: evidenceList.join('; '),
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    isTargetGnss: confidence >= 50,
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  );
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}