77 lines
2.9 KiB
C#
77 lines
2.9 KiB
C#
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using Ayay.SerilogLogs;
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using Newtonsoft.Json.Linq;
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using Serilog;
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using SHH.CameraSdk;
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using SHH.Contracts;
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namespace SHH.CameraService;
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/// <summary>
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/// 云台控制指令处理器
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/// 响应 gRpc 指令：ProtocolCodes.Control_Ptz
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/// </summary>
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public class PtzControlHandler : ICommandHandler
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{
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private readonly ILogger _sysLog = Log.ForContext("SourceContext", LogModules.Core);
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private readonly CameraManager _cameraManager;
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/// <summary>指令名称（需与网关下发的 CmdCode 一致）</summary>
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public string ActionName => ProtocolCodes.Ptz_Control; // 需在 ProtocolCodes 中新增该常量
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public PtzControlHandler(CameraManager cameraManager)
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{
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_cameraManager = cameraManager ?? throw new ArgumentNullException(nameof(cameraManager));
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}
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public async Task ExecuteAsync(JToken payload)
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{
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// 1. 解析 PTZ 控制参数（与网关下发的 JSON 结构匹配）
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var ptzDto = payload.ToObject<PtzControlDto>();
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if (ptzDto == null || ptzDto.DeviceId <= 0)
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{
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_sysLog.Warning("[PTZ] 无效指令：参数缺失或设备ID非法");
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return;
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}
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// 2. 获取目标设备并校验能力
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var device = _cameraManager.GetDevice(ptzDto.DeviceId);
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if (device == null)
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{
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_sysLog.Warning($"[PTZ] 设备 {ptzDto.DeviceId} 不存在");
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return;
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}
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if (!device.IsPhysicalOnline)
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{
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_sysLog.Warning($"[PTZ] 设备 {ptzDto.DeviceId} 未在线，无法执行云台控制");
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return;
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}
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if (!(device is IPtzFeature ptzFeature))
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{
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_sysLog.Warning($"[PTZ] 设备 {ptzDto.DeviceId} 不支持云台控制");
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return;
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}
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// 3. 执行云台控制（根据指令类型选择手动/点动模式）
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try
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{
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if (ptzDto.Duration > 0)
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{
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// 点动模式：自动复位（如持续300ms向上转动）
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int safeDuration = Math.Clamp(ptzDto.Duration, 50, 2000); // 限制单次最长2秒
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await ptzFeature.PtzStepAsync(ptzDto.Action, safeDuration, ptzDto.Speed);
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_sysLog.Information($"[PTZ] 设备 {ptzDto.DeviceId} 点动控制：{ptzDto.Action}，时长 {safeDuration}ms，速度 {ptzDto.Speed}");
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}
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else
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{
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// 手动模式：按下/松开（如按住向上、松开停止）
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await ptzFeature.PtzControlAsync(ptzDto.Action, ptzDto.Stop, ptzDto.Speed);
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string actionDesc = ptzDto.Stop ? "停止" : "启动";
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_sysLog.Information($"[PTZ] 设备 {ptzDto.DeviceId} 手动控制：{ptzDto.Action} {actionDesc}，速度 {ptzDto.Speed}");
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}
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}
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catch (Exception ex)
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{
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_sysLog.Error(ex, $"[PTZ] 设备 {ptzDto.DeviceId} 控制失败");
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}
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}
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}
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