统一健身器材蓝牙接入APP技术方案

interface FitnessDevice {
  // 设备基本信息
  deviceId: string;
  deviceName: string;
  deviceType: DeviceType;
  manufacturer: string;
  model: string;

  // 统一连接管理
  connect(): Promise;
  disconnect(): Promise;

  // 统一数据订阅
  onData(callback: (data: StandardizedWorkoutData) => void): void;

  // 统一控制（可选）
  startWorkout(): Promise;
  stopWorkout(): Promise;
  setSpeed?(speed: number): Promise;
  setIncline?(incline: number): Promise;
  setResistance?(level: number): Promise;
}

fun parseIndoorBikeData(value: ByteArray): IndoorBikeData {
    var offset = 0
    val flags = value[offset].toInt() and 0xFF
    offset += 1

    var instantaneousSpeed: Float? = null
    var averageSpeed: Float? = null
    var instantaneousCadence: Int? = null
    var distance: Int? = null

    if ((flags and 0x01) != 0) {
        instantaneousSpeed = (value[offset].toInt() and 0xFF).toFloat() / 100
        offset += 2
    }
    if ((flags and 0x04) != 0) {
        instantaneousCadence = value[offset].toInt() and 0xFF
        offset += 2
    }
    if ((flags and 0x10) != 0) {
        distance = value[offset].toInt() and 0xFF
        offset += 2
    }

    return IndoorBikeData(
        instantaneousSpeed = instantaneousSpeed,
        distance = distance
    )
}

interface WorkoutSession {
  sessionId: string;                // 唯一会话ID
  userId: string;                   // 用户ID
  deviceId: string;                 // 设备ID
  deviceType: DeviceType;           
  startTime: number;                // 开始Unix时间戳
  endTime: number;                  // 结束时间戳
  durationMs: number;               
  totalDistance: number;            // 总距离（米）
  totalCalories: number;            
  avgSpeed: number;                 // 平均速度（km/h）
  avgHeartRate?: number;            
  maxHeartRate?: number;            
  samples: WorkoutDataPoint[];      // 详细时间序列数据
  summary: {
    avgCadence?: number;
    avgPower?: number;
    totalStrokes?: number;           // 总划数/步数
    totalClimb?: number;             // 总爬升（米）
  };
}