107 lines
6.1 KiB
C#
107 lines
6.1 KiB
C#
using Evergreen.Health.Application.Health.Sleep;
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using Microsoft.Extensions.Hosting;
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using Microsoft.Extensions.Logging;
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using Microsoft.Extensions.Options;
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namespace Evergreen.Health.Application.Health.Integrations.Ib43;
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public sealed class Ib43MqttService(IOptions<Ib43Options> options, IIb43MqttTransportFactory factory,
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Ib43StateStore store, TimeProvider clock, ILogger<Ib43MqttService> logger, IIb43ReportSink sink = null,
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IBedPresenceSink presenceSink = null) : BackgroundService
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{
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protected override async Task ExecuteAsync(CancellationToken stoppingToken)
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{
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var configuration = options.Value;
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logger.LogInformation("IB43 MQTT startup: Enabled={Enabled}, Host={Host}, Port={Port}, PasswordConfigured={PasswordConfigured}, Devices={Count}",
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configuration.Enabled, configuration.Host, configuration.Port,
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!string.IsNullOrWhiteSpace(configuration.Password), configuration.Devices?.Count ?? 0);
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if (!configuration.Enabled)
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{
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logger.LogInformation("IB43 MQTT disabled; set Ib43__Enabled=true to enable");
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return;
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}
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// 即使直接构造（测试/其他宿主）也不带错误配置进入重试。
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if (!configuration.IsValid()) throw new InvalidOperationException("Invalid Ib43 configuration");
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var failures = 0;
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while (!stoppingToken.IsCancellationRequested)
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{
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var connectedAt = clock.GetUtcNow();
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var connectionId = Guid.NewGuid();
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using var connection = CancellationTokenSource.CreateLinkedTokenSource(stoppingToken);
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var connectionToken = connection.Token;
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try
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{
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using var transport = factory.Create();
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var seenKinds = new HashSet<string>(StringComparer.Ordinal);
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int? lastMatchedBeds = null;
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transport.Message += async (topic, payload, retained) =>
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{
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var report = store.Receive(topic, payload, retained);
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if (sink != null && report.Accepted && report.Readings.Count > 0)
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{
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var binding = configuration.Devices.Single(d => d.PostTopic == topic);
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var reportId = Guid.NewGuid().ToString("N");
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Ib43SavedReport saved;
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// 等待持久化再结束回调（MQTT 自动 ACK 在此之后）。失败时阻塞重试而非静默丢弃。
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while (true)
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{
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stoppingToken.ThrowIfCancellationRequested();
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try
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{
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saved = await sink.SaveAsync(reportId, binding, report, stoppingToken);
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break;
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}
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catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested) { throw; }
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catch (Exception error)
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{
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logger.LogWarning("IB43 persistence failed ({Type}); retrying in 5 seconds", error.GetType().Name);
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await Task.Delay(TimeSpan.FromSeconds(5), clock, stoppingToken);
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}
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}
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if (saved.MatchedCount != lastMatchedBeds)
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logger.LogInformation("IB43 persistence: matched beds={Count}; zero means no user observation saved", saved.MatchedCount);
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lastMatchedBeds = saved.MatchedCount;
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// 发布失败与写库重试分开，联动问题不能导致重写已保存的报文。
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try { Ib43PresenceAdapter.Publish(presenceSink, binding, report, saved.ActiveBeds, connectionId, connectionToken); }
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catch (Exception error)
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{
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logger.LogWarning("IB43 presence publication failed ({Type})", error.GetType().Name);
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}
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}
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if (!report.Accepted || report.Issues.Count > 0)
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logger.LogDebug("IB43 report has {Count} parsing issues", report.Issues.Count);
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if (report.Accepted && (report.Readings.Count > 0 || report.Fields.Count > 0))
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foreach (var kind in report.Kinds)
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if (seenKinds.Add(kind))
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logger.LogInformation("IB43 first {Kind} report received in this connection", kind);
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};
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transport.OversizedMessage += store.RejectOversized;
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store.SetTransport("connecting");
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using var timeout = CancellationTokenSource.CreateLinkedTokenSource(stoppingToken);
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timeout.CancelAfter(TimeSpan.FromSeconds(15));
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await transport.ConnectAndSubscribeAsync(configuration, timeout.Token);
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store.SetTransport("connected");
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connectedAt = clock.GetUtcNow();
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logger.LogInformation("IB43 MQTT connected and subscribed to {Count} configured devices", configuration.Devices.Count);
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while (transport.IsConnected)
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await Task.Delay(TimeSpan.FromSeconds(1), clock, stoppingToken);
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}
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catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested) { break; }
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catch (Exception exception)
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{
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// 不写密码、连接选项、完整异常文本或原始健康报文。
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logger.LogWarning("IB43 MQTT connection/subscription failed ({Type}); retrying", exception.GetType().Name);
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}
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finally
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{
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connection.Cancel();
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store.SetTransport("disconnected");
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}
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if (clock.GetUtcNow() - connectedAt > TimeSpan.FromMinutes(1)) failures = 0;
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var seconds = Math.Min(30, Math.Pow(2, Math.Min(failures++, 5)));
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try { await Task.Delay(TimeSpan.FromSeconds(seconds), clock, stoppingToken); }
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catch (OperationCanceledException) when (stoppingToken.IsCancellationRequested) { break; }
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}
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}
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}
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