RefactoringDI

TrafagSalesExporter/Services/TransformationStrategies.cs

@@ -0,0 +1,58 @@
+namespace TrafagSalesExporter.Services;
+
+public sealed class CopyTransformationStrategy : ITransformationStrategy
+{
+    public string TransformationType => "Copy";
+    public object? Transform(object? sourceValue, string? argument) => sourceValue;
+}
+
+public sealed class UppercaseTransformationStrategy : ITransformationStrategy
+{
+    public string TransformationType => "Uppercase";
+    public object? Transform(object? sourceValue, string? argument) => sourceValue?.ToString()?.ToUpperInvariant();
+}
+
+public sealed class LowercaseTransformationStrategy : ITransformationStrategy
+{
+    public string TransformationType => "Lowercase";
+    public object? Transform(object? sourceValue, string? argument) => sourceValue?.ToString()?.ToLowerInvariant();
+}
+
+public sealed class PrefixTransformationStrategy : ITransformationStrategy
+{
+    public string TransformationType => "Prefix";
+    public object? Transform(object? sourceValue, string? argument) => $"{argument}{sourceValue}";
+}
+
+public sealed class SuffixTransformationStrategy : ITransformationStrategy
+{
+    public string TransformationType => "Suffix";
+    public object? Transform(object? sourceValue, string? argument) => $"{sourceValue}{argument}";
+}
+
+public sealed class ReplaceTransformationStrategy : ITransformationStrategy
+{
+    public string TransformationType => "Replace";
+
+    public object? Transform(object? sourceValue, string? argument)
+    {
+        var input = sourceValue?.ToString();
+        if (string.IsNullOrEmpty(input))
+            return string.Empty;
+
+        if (string.IsNullOrWhiteSpace(argument))
+            return input;
+
+        var parts = argument.Split("=>", 2, StringSplitOptions.TrimEntries);
+        if (parts.Length != 2)
+            return input;
+
+        return input.Replace(parts[0], parts[1], StringComparison.OrdinalIgnoreCase);
+    }
+}
+
+public sealed class ConstantTransformationStrategy : ITransformationStrategy
+{
+    public string TransformationType => "Constant";
+    public object? Transform(object? sourceValue, string? argument) => argument;
+}