add config store

2024-07-26 08:11:21 +08:00
parent 82f7e0fc00
commit 929ddaced3
21 changed files with 302 additions and 153 deletions
@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using System.Threading.Tasks;
+using Microsoft.Extensions.Logging;
+using MQTTnet;
+using MQTTnet.Protocol;
+
+namespace SimApi;
+
+public partial class Synapse
+{
+    public event EventHandler<ConfigStoreItem>? OnConfigChanged;
+    private Dictionary<string, string> CurrentConfig { get; } = new();
+
+    private bool FireSetConfig(string key, string value)
+    {
+        var topic = $"{Options.SysName}/synapse-config-store/{key}";
+        var message = new MqttApplicationMessageBuilder()
+            .WithTopic(topic)
+            .WithPayload(value)
+            .WithRetainFlag()
+            .Build();
+        if (!Client!.IsConnected) return false;
+        Client!.PublishAsync(message, CancellationToken.None).Wait();
+        logger.LogDebug("Synapse Config Set: {Config} => {Data}", key, value);
+        return true;
+    }
+
+    private string? FireGetConfig(string key)
+    {
+        return CurrentConfig.GetValueOrDefault(key);
+    }
+
+    private void RunConfigStoreServer()
+    {
+        var csTopicPrefix = $"{Options.SysName}/synapse-config-store/";
+        var eventSubOpts = MqttFactory.CreateSubscribeOptionsBuilder()
+            .WithTopicFilter(o =>
+                o.WithTopic($"{csTopicPrefix}+").WithRetainHandling(MqttRetainHandling.SendAtSubscribe))
+            .Build();
+        Client!.ApplicationMessageReceivedAsync += e =>
+        {
+            if (!e.ApplicationMessage.Topic.StartsWith(csTopicPrefix)) return Task.CompletedTask;
+            var reqBody = e.ApplicationMessage.ConvertPayloadToString();
+            var eventName = e.ApplicationMessage.Topic.Replace(csTopicPrefix, string.Empty);
+            CurrentConfig[eventName] = reqBody;
+            OnConfigChanged?.Invoke(this, new ConfigStoreItem(eventName, reqBody));
+            logger.LogDebug("Synapse Config Changed: {Config} => {Data}", eventName, reqBody);
+            return Task.CompletedTask;
+        };
+        Client.SubscribeAsync(eventSubOpts).Wait();
+    }
+
+    public record ConfigStoreItem(string Key, string Value);
+}