Introduce & Implement BotController

Author: izzat5233

RealTimeWeatherMonitoringApp/Domain/Common/BotEventArgs.cs

@@ -2,6 +2,6 @@ namespace RealTimeWeatherMonitoringApp.Domain.Common;
 
 public class BotEventArgs : EventArgs
 {
-    public string Message { get; set; }
+    public string Message { get; }
     public BotEventArgs(string message) => Message = message;
 }

RealTimeWeatherMonitoringApp/Domain/Common/DataChangeEventArgs.cs

@@ -0,0 +1,7 @@
+namespace RealTimeWeatherMonitoringApp.Domain.Common;
+
+public class DataChangeEventArgs<TObserved> : EventArgs
+{
+    public TObserved? NewData { get; }
+    public DataChangeEventArgs(TObserved newData) => NewData = newData;
+}

RealTimeWeatherMonitoringApp/Domain/Interfaces/IBotController.cs

@@ -0,0 +1,18 @@
+using RealTimeWeatherMonitoringApp.Domain.Common;
+
+namespace RealTimeWeatherMonitoringApp.Domain.Interfaces;
+
+/// <summary>
+/// Controls the behaviour of a Bot model
+/// </summary>
+/// <typeparam name="TEvaluated">Evaluated data type of the bot</typeparam>
+public interface IBotController<TEvaluated>
+{
+    /// <summary>
+    /// Reacts to the incoming <see cref="DataChangeEventArgs{TEvaluated}"/>
+    /// and potentially returns an event args if the data triggers a response.
+    /// </summary>
+    /// <param name="args">The event args containing the data to be evaluated by the bot controller.</param>
+    /// <returns>A <see cref="BotEventArgs"/> if the data triggers the bot, otherwise null.</returns>
+    BotEventArgs? React(DataChangeEventArgs<TEvaluated> args);
+}

RealTimeWeatherMonitoringApp/Domain/Models/Controller/BotController.cs

@@ -0,0 +1,15 @@
+using RealTimeWeatherMonitoringApp.Domain.Common;
+using RealTimeWeatherMonitoringApp.Domain.Interfaces;
+
+namespace RealTimeWeatherMonitoringApp.Domain.Models.Controller;
+
+public class BotController<TEvaluated> : IBotController<TEvaluated>
+{
+    private readonly Bot<TEvaluated> _bot;
+    public BotController(Bot<TEvaluated> bot) => _bot = bot;
+
+    public BotEventArgs? React(DataChangeEventArgs<TEvaluated> args) =>
+        args.NewData != null && IsTriggeredBy(args.NewData) ? new BotEventArgs(_bot.Message) : null;
+
+    private bool IsTriggeredBy(TEvaluated data) => _bot.Enabled && _bot.Evaluator.Evaluate(data);
+}