refactor: Restructure Application layer with vertical slices and AutoMapper

Vertical slice architecture: - Move Features/Documents/{UseCase}/ to {UseCase}/Queries/ - Query + Handler in SAME file (co-located) - Validator in separate file (single responsibility) New structure: - ValidatePdf/Queries/ValidatePdfQuery.cs (Query + Handler) - ValidatePdf/Queries/ValidatePdfQueryValidator.cs - SwissQrCode/Queries/ExtractSwissQrCodeQuery.cs (Query + Handler) - SwissQrCode/Queries/ExtractSwissQrCodeQueryValidator.cs AutoMapper integration: - Add Common/Mapping/MappingProfile.cs - Map PdfMetadata -> PdfValidationResult (domain -> DTO) - Map SwissQrCodeData -> SwissQrCodeExtractionResult (domain -> DTO) - Controllers now thin: pass request to MediatR, AutoMapper handles mapping DTO improvements: - Rename: ValidatePdfResponse -> PdfValidationResult (business-friendly) - Rename: ExtractSwissQrCodeResponse -> SwissQrCodeExtractionResult - Support BOTH byte[] and Base64Pdf string (XOR validation) - Use modern C# 12 collection expressions Code quality: - Use PascalCase for primary constructor parameters - Fix LoggingBehavior logging format Deleted old structure: - Features/Documents/ValidatePdf/ (old horizontal structure) - Features/Documents/ExtractSwissQrCode/ (old horizontal structure) - Common/DTOs/{Request|Response} (replaced with {Result}) Result: Vertical slices, AutoMapper v16.2.0, thin controllers
2026-07-07 19:01:05 +02:00
parent b460d8df39
commit d6e3a5fda1
16 changed files with 253 additions and 185 deletions
--- a/DocumentOperator.Application/ValidatePdf/Queries/ValidatePdfQueryValidator.cs
+++ b/DocumentOperator.Application/ValidatePdf/Queries/ValidatePdfQueryValidator.cs
@@ -0,0 +1,59 @@
+using DocumentOperator.Application.ValidatePdf.Queries;
+using FluentValidation;
+
+namespace DocumentOperator.Application.ValidatePdf.Queries;
+
+/// <summary>
+/// Validator for ValidatePdfQuery
+/// Ensures exactly ONE input method is provided (either PdfBytes OR Base64Pdf, not both, not none)
+/// </summary>
+public class ValidatePdfQueryValidator : AbstractValidator<ValidatePdfQuery>
+{
+    public ValidatePdfQueryValidator()
+    {
+        RuleFor(x => x)
+            .Must(HasExactlyOneInput)
+            .WithMessage("Either PdfBytes or Base64Pdf must be provided, but not both");
+
+        // Validate Base64 format if provided
+        When(x => !string.IsNullOrWhiteSpace(x.Base64Pdf), () =>
+        {
+            RuleFor(x => x.Base64Pdf)
+                .Must(BeValidBase64)
+                .WithMessage("Invalid Base64 format");
+        });
+
+        // Validate byte array if provided
+        When(x => x.PdfBytes != null, () =>
+        {
+            RuleFor(x => x.PdfBytes)
+                .NotEmpty()
+                .WithMessage("PdfBytes cannot be empty");
+        });
+    }
+
+    private static bool HasExactlyOneInput(ValidatePdfQuery request)
+    {
+        var hasPdfBytes = request.PdfBytes != null && request.PdfBytes.Length > 0;
+        var hasBase64 = !string.IsNullOrWhiteSpace(request.Base64Pdf);
+
+        // XOR: exactly one must be true
+        return hasPdfBytes ^ hasBase64;
+    }
+
+    private static bool BeValidBase64(string? base64)
+    {
+        if (string.IsNullOrWhiteSpace(base64))
+            return false;
+
+        try
+        {
+            Convert.FromBase64String(base64);
+            return true;
+        }
+        catch (FormatException)
+        {
+            return false;
+        }
+    }
+}