Introduce evaluator extension

extra

Author: izzat5233

RealTimeWeatherMonitoringApp/Infrastructure/Extension/EvaluatorExtension.cs

@@ -0,0 +1,22 @@
+using RealTimeWeatherMonitoringApp.Domain.Interfaces;
+
+namespace RealTimeWeatherMonitoringApp.Infrastructure.Extension;
+
+public static class EvaluatorExtension
+{
+    /// <summary>
+    /// Composes multiple evaluators into a single evaluator that returns true only if all individual evaluators return true.
+    /// </summary>
+    /// <param name="evaluators">A collection of evaluators to be composed.</param>
+    /// <returns>An evaluator that aggregates the evaluation results of all provided evaluators.</returns>
+    public static IEvaluator<TEvaluated> EvaluateAll<TEvaluated>(this IEnumerable<IEvaluator<TEvaluated>> evaluators) =>
+        new AllEvaluator<TEvaluated>(evaluators);
+
+    private class AllEvaluator<TEvaluated> : IEvaluator<TEvaluated>
+    {
+        private readonly IEnumerable<IEvaluator<TEvaluated>> _evaluators;
+        public AllEvaluator(IEnumerable<IEvaluator<TEvaluated>> evaluators) => _evaluators = evaluators;
+
+        public bool Evaluate(TEvaluated data) => _evaluators.All(evaluator => evaluator.Evaluate(data));
+    }
+}