using DXApp.TemplateKitProject.Data;
using DXApp.TemplateKitProject.Models;

namespace DXApp.TemplateKitProject.Services;

public class ZugferdImportService(
    ZugferdExtractorService extractor,
    ZugferdParserService parser,
    AppDbContext db,
    ILogger<ZugferdImportService> logger)
{
    public async Task<ZugferdInvoice?> ImportAsync(Stream pdfStream, string sourceType)
    {
        var xml = extractor.ExtractXml(pdfStream);

        if (xml is null)
        {
            logger.LogWarning("Kein ZUGFeRD-XML in der PDF-Datei gefunden.");
            return null;
        }

        var invoice = parser.Parse(xml);
        invoice.SourceType = sourceType;

        db.ZugferdInvoices.Add(invoice);
        await db.SaveChangesAsync();

        return invoice;
    }
}