425 lines
15 KiB
C#
425 lines
15 KiB
C#
using Ayay.SerilogLogs;
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using Serilog;
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namespace SHH.CameraSdk;
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/// <summary>
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/// [管理层] 视频源总控管理器 (V3.5 持久化集成版)
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/// 核心职责：统一管理所有相机设备的生命周期、状态监控与资源清理，对接协调器实现自动自愈
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/// </summary>
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public class CameraManager : IDisposable, IAsyncDisposable
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{
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#region --- 1. 核心资源与状态 (Fields & States) ---
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private ILogger _sysLog = Log.ForContext("SourceContext", LogModules.Core);
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/// <summary> 全局设备实例池（线程安全），Key = 设备唯一标识 </summary>
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private readonly ConcurrentDictionary<long, BaseVideoSource> _cameraPool = new();
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/// <summary> 后台协调器实例：负责心跳检测、断线重连、僵尸流恢复 </summary>
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private readonly CameraCoordinator _coordinator = new();
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/// <summary> 全局取消令牌源：用于销毁时瞬间关停所有异步扫描任务 </summary>
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private readonly CancellationTokenSource _globalCts = new();
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/// <summary> 销毁状态标记：防止重复销毁或销毁过程中执行操作 </summary>
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private volatile bool _isDisposed;
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/// <summary>
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/// 协调器引擎运行状态标记
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/// 使用 volatile 关键字确保多线程环境下的内存可见性
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/// </summary>
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private volatile bool _isEngineStarted = false;
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#endregion
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#region --- 构造函数 (Constructor) ---
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// [修改] 注入 IStorageService
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public CameraManager()
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{
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}
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#endregion
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#region --- 2. 设备管理 (Device Management) ---
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/// <summary>
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/// 向管理池添加新相机设备
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/// </summary>
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/// <param name="config">相机设备配置信息</param>
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public void AddDevice(VideoSourceConfig config)
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{
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// [安全防护] 销毁过程中禁止添加新设备
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if (_isDisposed) return;
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// 使用工厂方法创建
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var device = CreateDeviceInstance(config);
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if (!_cameraPool.TryAdd(config.Id, device))
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{
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// 如果添加失败（ID冲突），由于 device 还没被使用，直接释放掉
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device.DisposeAsync().AsTask().Wait();
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_sysLog.Warning($"[Core] 设备 ID:{config.Id} 已存在");
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_sysLog.Debug($"[Core] 设备 ID:{config.Id} => 明细:" + "{@cfg}.", config);
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throw new InvalidOperationException($"设备 ID {config.Id} 已存在");
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}
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_coordinator.Register(device);
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// 动态激活逻辑：引擎已启动时，新设备直接标记为运行状态
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if (_isEngineStarted)
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device.IsRunning = true;
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}
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/// <summary>
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/// 根据设备ID获取指定的视频源实例
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/// </summary>
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public BaseVideoSource? GetDevice(long id)
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=> _cameraPool.TryGetValue(id, out var source) ? source : null;
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/// <summary>
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/// 获取当前管理的所有相机设备
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/// </summary>
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public IEnumerable<BaseVideoSource> GetAllDevices()
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{
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return _cameraPool.Values.ToList();
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}
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/// <summary>
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/// [修改] 异步移除设备 (从 RemoveDevice 改为 RemoveDeviceAsync)
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/// </summary>
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public async Task RemoveDeviceAsync(long id)
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{
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if (_cameraPool.TryRemove(id, out var device))
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{
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// 记录日志
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_sysLog.Information("[Core] 正在移除设备, ID {0} ", id);
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// 1. 停止物理连接
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await device.StopAsync();
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// 2. 释放资源
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await device.DisposeAsync();
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_sysLog.Warning("[Core] 设备已彻底移除, ID {0} ", id);
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}
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}
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// 为了兼容旧代码保留同步方法，但不推荐使用
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public void RemoveDevice(long id) => RemoveDeviceAsync(id).Wait();
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#endregion
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#region --- 3. 生命周期控制 (Engine Lifecycle) ---
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/// <summary>
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/// 启动视频管理引擎，加载配置，初始化SDK并启动协调器自愈循环
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/// </summary>
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public async Task StartAsync()
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{
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if (_isDisposed) throw new ObjectDisposedException(nameof(CameraManager));
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if (_isEngineStarted) return;
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// =========================================================
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// 1. 全局驱动环境预初始化
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// =========================================================
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HikSdkManager.Initialize();
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DahuaSdkManager.Initialize();
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// 标记引擎启动状态
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_isEngineStarted = true;
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// =========================================================
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// 2. 启动协调器后台自愈循环
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// =========================================================
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_ = Task.Factory.StartNew(
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() => _coordinator.RunCoordinationLoopAsync(_globalCts.Token),
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_globalCts.Token,
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TaskCreationOptions.LongRunning,
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TaskScheduler.Default);
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// 这里传递 _cameraPool 给协调器（如果协调器是独立引用的，可能需要 Register 逻辑，
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// 但根据您的代码，协调器似乎是依赖外部注册或共享引用的。
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// *注意*：如果 Coordinator 需要显式注册，请在这里补上：
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foreach (var dev in _cameraPool.Values) _coordinator.Register(dev);
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_sysLog.Warning($"[Core] 设备管理引擎启动成功, 当前管理 {_cameraPool.Count} 路设备");
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await Task.CompletedTask;
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}
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/// <summary>
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/// 获取当前所有相机的全局状态简报
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/// </summary>
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public IEnumerable<(long Id, string Ip, VideoSourceStatus Status)> GetGlobalStatus()
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{
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return _cameraPool.Values.Select(v => (v.Id, v.Config.IpAddress, v.Status));
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}
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#endregion
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#region --- 4. 监控数据采集 (Telemetry Collection) ---
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/// <summary>
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/// 获取全量相机实时遥测数据快照 (MonitorController 使用)
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/// </summary>
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public IEnumerable<CameraTelemetryInfo> GetTelemetrySnapshot()
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{
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return _cameraPool.Values.Select(cam =>
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{
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// 健康度评分算法
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int healthScore = 100;
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if (cam.Status == VideoSourceStatus.Faulted)
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healthScore = 0;
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else if (cam.Status == VideoSourceStatus.Reconnecting)
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healthScore = 60;
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else if (cam.RealFps < 1.0 && cam.Status == VideoSourceStatus.Playing)
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healthScore = 40;
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return new CameraTelemetryInfo
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{
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DeviceId = cam.Id,
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Name = cam.Config.Name,
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IpAddress = cam.Config.IpAddress,
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Status = cam.Status.ToString(),
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IsOnline = cam.IsPhysicalOnline,
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Fps = cam.RealFps,
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Bitrate = cam.RealBitrate,
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TotalFrames = cam.TotalFrames,
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HealthScore = healthScore,
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LastErrorMessage = cam.Status == VideoSourceStatus.Faulted ? "设备故障或网络中断" : null,
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Timestamp = DateTime.Now,
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Width = cam.Width,
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Height = cam.Height,
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};
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}).ToList();
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}
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#endregion
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#region --- 5. 配置热更新 (Config Hot Update) ---
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/// <summary>
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/// 智能更新设备配置 (含冷热分离逻辑)
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/// </summary>
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public async Task UpdateDeviceConfigAsync(long deviceId, DeviceUpdateDto dto)
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{
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if (!_cameraPool.TryGetValue(deviceId, out var device))
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{
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_sysLog.Warning($"[Core] 设备更新制作, ID:{deviceId} 不存在.");
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throw new KeyNotFoundException($"设备 ID:{deviceId} 不存在.");
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}
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// 1. 审计
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_sysLog.Debug($"[Core] 响应设备配置更新请求, ID:{deviceId}.");
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// ============================================================
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// 【核心修复：手动解除冷冻】
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// [原因] 用户已干预配置，无论之前是否认证失败，都应立即重置标记
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// 这样下一次 Coordinator (5秒内) 扫描时，会因为 IsAuthFailed == false
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// 且经过了 NormalRetryMs (30s) 而立即尝试拉起。
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// ============================================================
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device.ResetResilience();
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// 2. 创建副本进行对比
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var oldConfig = device.Config;
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var newConfig = oldConfig.DeepCopy();
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// 3. 映射 DTO 值
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if (dto.IpAddress != null) newConfig.IpAddress = dto.IpAddress;
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if (dto.Port != null) newConfig.Port = dto.Port.Value;
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if (dto.Username != null) newConfig.Username = dto.Username;
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if (dto.Password != null) newConfig.Password = dto.Password;
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if (dto.ChannelIndex != null) newConfig.ChannelIndex = dto.ChannelIndex.Value;
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if (dto.StreamType != null) newConfig.StreamType = dto.StreamType.Value;
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if (dto.Name != null) newConfig.Name = dto.Name;
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if (dto.Brand != null) newConfig.Brand = (DeviceBrand)dto.Brand;
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newConfig.RtspPath = dto.RtspPath;
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newConfig.MainboardIp = dto.MainboardIp;
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newConfig.MainboardPort = dto.MainboardPort;
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newConfig.RenderHandle = dto.RenderHandle;
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// 4. 判定冷热更新
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bool needColdRestart =
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newConfig.IpAddress != oldConfig.IpAddress ||
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newConfig.Port != oldConfig.Port ||
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newConfig.Username != oldConfig.Username ||
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newConfig.Password != oldConfig.Password ||
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newConfig.ChannelIndex != oldConfig.ChannelIndex ||
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newConfig.RtspPath != oldConfig.RtspPath ||
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newConfig.RenderHandle != oldConfig.RenderHandle ||
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newConfig.Brand != oldConfig.Brand;
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if (needColdRestart)
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{
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_sysLog.Debug($"[Core] 检测到核心参数变更, 执行冷重启, ID:{deviceId}.");
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bool wasRunning = device.IsRunning;
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// A. 彻底停止
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if (device.IsActived) await device.StopAsync();
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// B. 写入新配置
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device.UpdateConfig(newConfig);
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// C. 自动重启
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if (wasRunning)
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await device.StartAsync();
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}
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else
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{
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_sysLog.Debug($"[Core] 检测到运行时参数变更, 执行热更新, ID:{deviceId}.");
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// A. 更新配置数据
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device.UpdateConfig(newConfig);
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// B. 在线应用策略
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if (device.IsActived)
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{
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// Optimized: 仅构造真正发生变化的参数
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var options = new DynamicStreamOptions();
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// 判定码流是否真的变了（或者 DTO 明确传了新值）
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if (dto.StreamType.HasValue && dto.StreamType != oldConfig.StreamType)
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{
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options.StreamType = dto.StreamType.Value;
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}
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// 判定句柄是否真的变了
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// Modified: 只有当 DTO 的句柄与旧配置不一致时，才放入 options
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if (dto.RenderHandle != oldConfig.RenderHandle)
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{
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options.RenderHandle = (IntPtr)dto.RenderHandle;
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}
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// 只有当至少有一个参数需要更新时，才调用底层
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// 假设 DynamicStreamOptions 内部有检测是否有值的方法，或者判断其属性
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if (options.StreamType.HasValue || options.RenderHandle.HasValue)
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{
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device.ApplyOptions(options);
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}
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}
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}
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}
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#endregion
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#region --- 6. 资源清理 (Disposal) ---
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public void Dispose() => DisposeAsync().AsTask().GetAwaiter().GetResult();
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/// <summary>
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/// 释放资源
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/// </summary>
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/// <returns></returns>
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public async ValueTask DisposeAsync()
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{
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if (_isDisposed) return;
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_isDisposed = true;
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_isEngineStarted = false;
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try
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{
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_globalCts.Cancel();
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var devices = _cameraPool.Values.ToArray();
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_cameraPool.Clear();
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var disposeTasks = devices.Select(async device =>
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{
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try { await device.DisposeAsync(); }
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catch { }
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});
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await Task.WhenAll(disposeTasks);
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try
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{
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HikSdkManager.Uninitialize();
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}
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catch { }
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try
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{
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DahuaSdkManager.Uninitialize();
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}
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catch { }
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}
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finally
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{
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_globalCts.Dispose();
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}
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}
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#endregion
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#region --- 7. 内部辅助 (Helpers) ---
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/// <summary>
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/// 创建设备实例
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/// </summary>
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/// <param name="config"></param>
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/// <returns></returns>
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private BaseVideoSource CreateDeviceInstance(VideoSourceConfig config)
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{
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return config.Brand switch
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{
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DeviceBrand.HikVision => new HikVideoSource(config),
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DeviceBrand.Dahua => new DahuaVideoSource(config),
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DeviceBrand.Usb => new UsbVideoSource(config),
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// 使用模式匹配获取不匹配的值，记录详细的 DTO 上下文
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_ => HandleUnsupportedBrand(config)
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};
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}
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/// <summary>
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/// 处理不支持的设备品牌
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/// </summary>
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/// <param name="config"></param>
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/// <returns></returns>
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/// <exception cref="NotSupportedException"></exception>
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private BaseVideoSource HandleUnsupportedBrand(VideoSourceConfig config)
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{
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// 1. 构造错误消息
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string errorMsg = $"❌ 不支持的设备品牌: {config.Brand} (ID: {config.Id}, Name: {config.Name})";
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// 2. 写入日志 - 建议带上 config 的解构信息，方便排查是否是前端传参错误
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_sysLog.Error($"[Core] {errorMsg} | 配置详情: " + "{@Config}", config);
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// 3. 抛出异常，阻止程序进入不确定状态
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throw new NotSupportedException(errorMsg);
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}
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#endregion
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/// <summary>
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/// [新增] 获取当前管理的所有相机设备（兼容网络引擎接口）
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/// </summary>
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public IEnumerable<BaseVideoSource> GetAllCameras()
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{
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// 复用现有的 GetAllDevices 逻辑
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return GetAllDevices();
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}
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#region --- [新增] 状态事件总线 (SDK 对外接口) ---
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/// <summary>
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/// 当设备在线/离线状态发生变更时触发
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/// <para>参数1: DeviceId</para>
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/// <para>参数2: IsOnline (true=在线, false=离线)</para>
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/// <para>参数3: Reason (变更原因)</para>
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/// </summary>
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public event Action<long, string, bool, string>? OnDeviceStatusChanged;
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/// <summary>
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/// [内部方法] 供 Sentinel 调用，触发事件冒泡
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/// </summary>
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internal void NotifyStatusChange(long deviceId, string ipAddress, bool isOnline, string reason)
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{
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// 仅仅是触发 C# 事件，完全不知道网络发送的存在
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OnDeviceStatusChanged?.Invoke(deviceId, ipAddress, isOnline, reason);
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}
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#endregion
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} |