44 lines
1.4 KiB
C#
44 lines
1.4 KiB
C#
using DocumentOperator.Application.Common.Interfaces;
|
|
using FluentValidation;
|
|
using MediatR;
|
|
|
|
namespace DocumentOperator.Application.ExtractPdfAttachments;
|
|
|
|
/// <summary>
|
|
/// Command to extract all embedded files from a PDF document and return as ZIP archive.
|
|
/// </summary>
|
|
public record ExtractPdfAttachmentsCommand : IRequest<byte[]>
|
|
{
|
|
/// <summary>
|
|
/// PDF document stream. Must be positioned at the beginning (Position = 0).
|
|
/// </summary>
|
|
public required Stream PdfStream { get; init; }
|
|
}
|
|
|
|
/// <summary>
|
|
/// Handler for ExtractPdfAttachmentsCommand.
|
|
/// Extracts all embedded files from PDF and returns as ZIP archive.
|
|
/// </summary>
|
|
public class ExtractPdfAttachmentsCommandHandler(IPdfProcessor pdfProcessor)
|
|
: IRequestHandler<ExtractPdfAttachmentsCommand, byte[]>
|
|
{
|
|
public async Task<byte[]> Handle(ExtractPdfAttachmentsCommand request, CancellationToken cancellationToken)
|
|
{
|
|
// Delegate to infrastructure layer
|
|
return await pdfProcessor.ExtractAttachmentsAsync(request.PdfStream);
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Validator for ExtractPdfAttachmentsCommand.
|
|
/// </summary>
|
|
public class ExtractPdfAttachmentsCommandValidator : AbstractValidator<ExtractPdfAttachmentsCommand>
|
|
{
|
|
public ExtractPdfAttachmentsCommandValidator()
|
|
{
|
|
RuleFor(x => x.PdfStream)
|
|
.NotNull()
|
|
.WithMessage("PDF stream is required");
|
|
}
|
|
}
|