upload

Services/ArrayIoService.cs

@@ -0,0 +1,18 @@
+using System.IO;
+
+namespace Lab9.Services;
+
+public static class ArrayIoService
+{
+    private static readonly char[] Separators = [' ', ',', ';', '\n', '\r', '\t'];
+
+    public static int[] ReadArrayFromFile(string filePath)
+    {
+        var content = File.ReadAllText(filePath);
+
+        return content
+            .Split(Separators, StringSplitOptions.RemoveEmptyEntries)
+            .Select(int.Parse)
+            .ToArray();
+    }
+}

Services/SortingContext.cs

@@ -0,0 +1,25 @@
+using Lab9.Models;
+using Lab9.Strategies;
+
+namespace Lab9.Services;
+
+public class SortingContext
+{
+    public SortingContext()
+    {
+    }
+
+    public SortingContext(ISortStrategy strategy)
+    {
+        ContextStrategy = strategy;
+    }
+
+    public ISortStrategy? ContextStrategy { get; set; }
+
+    public SortResult Execute(int[] array, bool ascending, bool enableLogging)
+    {
+        ArgumentNullException.ThrowIfNull(ContextStrategy);
+
+        return ContextStrategy.Sort(array, ascending, enableLogging);
+    }
+}

Services/StepLogger.cs

@@ -0,0 +1,40 @@
+using System.Text;
+
+namespace Lab9.Services;
+
+public class StepLogger
+{
+    private readonly StringBuilder _builder = new();
+
+    public void Header(string text)
+    {
+        _builder.AppendLine(text);
+    }
+
+    public void BlankLine()
+    {
+        _builder.AppendLine();
+    }
+
+    public void Line(string text)
+    {
+        _builder.AppendLine(text);
+    }
+
+    public void ArrayState(int[] array, params int[] highlightedIndices)
+    {
+        var highlighted = highlightedIndices.Length == 0
+            ? new HashSet<int>()
+            : highlightedIndices.ToHashSet();
+
+        var parts = new string[array.Length];
+        for (var i = 0; i < array.Length; i++)
+        {
+            parts[i] = highlighted.Contains(i) ? $"[{array[i]}]" : array[i].ToString();
+        }
+
+        _builder.AppendLine(string.Join(" ", parts));
+    }
+
+    public override string ToString() => _builder.ToString();
+}