Introduce functionality to remove and replace metadata in the
resulting PDF document. After loading the document with
`PdfDocumentProcessor`, the metadata fields (`Author`, `Creator`,
`Producer`, `Title`, `Subject`, and `Keywords`) are cleared or
replaced with values indicating the document was processed by
the "DXApp" system. This ensures proper attribution and removes
any association with the original document creator.
Introduce functionality to add a stamp to the top-right corner of
the first page of a PDF. The stamp includes a white background,
a green border, and two lines of text: "✔ VERARBEITET" in bold
green font and the current date/time in gray font. The stamp is
drawn using `DevExpress.Pdf.PdfDocumentProcessor` and saved to
the document's foreground.
Changed logging levels from LogInformation to LogDebug in
PdfAttachmentExtractorService and PdfResultPackageService.
This includes logs for PDF conformity levels, ZUGFeRD
Guideline-IDs, saved attachment details, and result report
discovery. These changes aim to reduce log verbosity in
production environments by moving less critical information
to the debug level.
Refactored the PDF processing workflow to enhance error handling
and provide more descriptive exception messages. Added `try-catch`
blocks around the PDF/A-3b conversion and document saving steps
to handle potential failures.
Labeled the workflow steps for clarity:
- Step 1: Convert to PDF/A-3b
- Step 2: Buffer converted PDF
- Step 3: Embed attachment
- Step 4: Save document
Removed redundant `MemoryStream` initialization for the original
PDF and updated comments to improve code readability and
maintainability.
Added a warning message in `Upload.cshtml` to notify users when a duplicate invoice is detected. Introduced the `IsDuplicate` property in `UploadModel` to track duplicates and updated the `OnPostAsync` method to set this property based on the `ImportedAt` timestamp.
Enhanced the `ImportAsync` method in `ZugferdImportService` to include duplicate detection by checking the database for invoices with the same `InvoiceNumber` and `SellerTaxId`. If a duplicate is found, it logs a warning and returns the existing invoice.
Updated `ImportAsync` to accept an optional `guidelineId` parameter and added logging for duplicate detection and successful imports.
Introduced the `ResultFilePath` property in the `ZugferdInvoice` model to store the path of generated result PDFs. Added a new service, `PdfResultPackageService`, to create result PDFs by converting the original PDF to PDF/A-3b format and attaching a report file. Updated `Upload.cshtml` and `Upload.cshtml.cs` to handle and display the `ResultFilePath`.
Created a migration to add the `ResultFilePath` column to the database. Updated `Program.cs` to register the new service and added configuration sections in `appsettings.json` for input and output directories. Enhanced error handling and logging for better traceability.
Enhanced `PdfExtractionResult` with a new `ZugferdGuidelineId` property to store the ZUGFeRD Guideline-ID extracted from XMP metadata. Updated `Upload.cshtml` to display this information in the UI if available.
Implemented ZUGFeRD Guideline-ID extraction in `PdfAttachmentExtractorService` using a new helper method `ExtractGuidelineId`, which parses XMP metadata for known prefixes. Added logging for extracted Guideline-IDs and improved error handling with a `try-catch` block for metadata processing.
Fixed `FileAttachments` handling in `PdfAttachmentExtractorService` by converting to `List<T>` for proper `Count` property usage.
Previously, the method directly converted a byte array to a string
without accounting for a potential UTF-8 Byte Order Mark (BOM).
This commit introduces logic to remove the BOM (if present)
using `TrimStart('\uFEFF')` after converting the byte array
to a string.
Additionally, a comment was added to clarify the purpose of
this change.
Added `PdfALevel` and `PdfAWarning` properties to the `PdfExtractionResult` class to store the PDF/A compliance level and indicate if a warning should be displayed for non-compliance.
Updated `Upload.cshtml` to display the PDF/A compliance level and conditionally show a warning message if the document is not PDF/A compliant.
Enhanced `PdfAttachmentExtractorService` to determine the PDF/A compliance level using `PdfDocumentProcessor`, map it to a string representation, and log the compliance level. Added logic to set `PdfAWarning` for non-compliant documents.
Enhanced `ZugferdInvoice` model with default string values to prevent nulls. Updated `Upload.cshtml` to display parsed invoice data.
Refactored `Upload.cshtml.cs` to handle ZUGFeRD XML parsing and database storage. Introduced `ImportedInvoice` property and buffered file processing with `MemoryStream`.
Extended `ZugferdParserService` to support ZUGFeRD v1, v1.0 FeRD, and v2/Factur-X. Added version-specific parsing methods and namespaces. Improved date and decimal parsing for robustness.
Added database migration (`20260522084606_InitialCreate`) to define `ZugferdInvoices` table. Updated migration snapshot to reflect schema changes.
Fixed localization issue in `Upload.cshtml.cs` error message.
