82 lines
3.1 KiB
C#
82 lines
3.1 KiB
C#
using Prism.Events;
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using System.Text.Json;
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using YY.Admin.Core;
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using YY.Admin.Core.Events;
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using YY.Admin.Core.Services;
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namespace YY.Admin.Services.Service.Print;
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public class PrintTemplateSyncCoordinator : ISingletonDependency
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{
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private readonly IEventAggregator _eventAggregator;
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private readonly IPrintTemplateService _printTemplateService;
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private readonly ILoggerService _logger;
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private SubscriptionToken? _remoteCommandToken;
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private SubscriptionToken? _networkStatusToken;
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public PrintTemplateSyncCoordinator(
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IEventAggregator eventAggregator,
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IPrintTemplateService printTemplateService,
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SyncPollManager pollManager,
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ILoggerService logger)
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{
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_eventAggregator = eventAggregator;
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_printTemplateService = printTemplateService;
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_logger = logger;
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_remoteCommandToken = _eventAggregator
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.GetEvent<RemoteCommandReceivedEvent>()
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.Subscribe(OnRemoteCommand, ThreadOption.BackgroundThread);
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_networkStatusToken = _eventAggregator
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.GetEvent<NetworkStatusChangedEvent>()
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.Subscribe(OnNetworkStatusChanged, ThreadOption.BackgroundThread);
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pollManager.Register("打印模板", () =>
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{
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_eventAggregator.GetEvent<PrintTemplateChangedEvent>()
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.Publish(new PrintTemplateChangedPayload { Action = "poll" });
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return Task.CompletedTask;
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});
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_logger.Information("[打印模板推送] PrintTemplateSyncCoordinator 已启动");
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}
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private void OnNetworkStatusChanged(NetworkStatusChangedPayload payload)
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{
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if (!payload.IsOnline) return;
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_logger.Information("[打印模板推送] 网络恢复，触发补偿刷新");
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_eventAggregator.GetEvent<PrintTemplateChangedEvent>()
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.Publish(new PrintTemplateChangedPayload { Action = "reconnect" });
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}
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private void OnRemoteCommand(RemoteCommandPayload payload)
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{
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try
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{
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var json = payload.CommandJson ?? string.Empty;
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if (string.IsNullOrWhiteSpace(json)) return;
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using var doc = JsonDocument.Parse(json);
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if (!doc.RootElement.TryGetProperty("cmd", out var cmdEl)) return;
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var cmd = cmdEl.GetString() ?? string.Empty;
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if (!cmd.Equals("PRINT_TEMPLATE_CHANGED", StringComparison.OrdinalIgnoreCase)) return;
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doc.RootElement.TryGetProperty("action", out var actionEl);
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doc.RootElement.TryGetProperty("templateId", out var idEl);
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var changedPayload = new PrintTemplateChangedPayload
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{
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Action = actionEl.GetString() ?? string.Empty,
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TemplateId = idEl.ValueKind == JsonValueKind.String ? idEl.GetString() : null
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};
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_logger.Information($"[打印模板推送] 收到变更信号 action={changedPayload.Action}, templateId={changedPayload.TemplateId}");
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_eventAggregator.GetEvent<PrintTemplateChangedEvent>().Publish(changedPayload);
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}
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catch (Exception ex)
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{
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_logger.Warning($"[打印模板推送] 处理 STOMP 信号失败: {ex.Message}");
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}
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}
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}
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