QR-Scanner: Kamera-Fallbacks und Foto-Upload; weitere Aenderungen
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using Lagerbestand.Models;
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using QuestPDF.Fluent;
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using QuestPDF.Helpers;
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using QuestPDF.Infrastructure;
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namespace Lagerbestand.Services;
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public interface IStorageRowPdfService
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{
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/// <summary>
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/// Generates a printable A4 inventory sheet for one shelf row (Area + Row).
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/// </summary>
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byte[] GenerateRowPdf(AreaType area, int row, IReadOnlyList<StorageLocation> locations);
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}
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public class StorageRowPdfService : IStorageRowPdfService
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{
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private static readonly string HeaderBackground = Colors.Grey.Lighten3;
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private static readonly string BorderColor = Colors.Grey.Medium;
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public byte[] GenerateRowPdf(AreaType area, int row, IReadOnlyList<StorageLocation> locations)
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{
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var rowLocations = locations
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.Where(l => l.Area == area && l.Row == row)
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.ToList();
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var occupied = rowLocations.Count(l => l.IsOccupied);
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var total = StorageLocation.PositionsPerSlot * StorageLocation.MaxSlot;
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var printedAt = DateTime.Now;
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var document = Document.Create(container =>
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{
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container.Page(page =>
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{
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page.Size(PageSizes.A4);
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page.Margin(1.5f, Unit.Centimetre);
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page.DefaultTextStyle(x => x.FontSize(9));
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page.Header()
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.PaddingBottom(12)
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.AlignCenter()
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.Text($"{area.GetDisplayName()} – Regal {row}")
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.Bold()
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.FontSize(20);
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page.Content().Row(r =>
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{
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r.RelativeItem().Column(col =>
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{
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col.Spacing(14);
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col.Item().Element(c => RenderPositionTable(c, area, row, ShelfPosition.LinksOben, rowLocations));
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col.Item().Element(c => RenderPositionTable(c, area, row, ShelfPosition.LinksUnten, rowLocations));
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});
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r.ConstantItem(14);
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r.RelativeItem().Column(col =>
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{
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col.Spacing(14);
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col.Item().Element(c => RenderPositionTable(c, area, row, ShelfPosition.RechtsOben, rowLocations));
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col.Item().Element(c => RenderPositionTable(c, area, row, ShelfPosition.RechtsUnten, rowLocations));
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});
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});
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page.Footer()
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.PaddingTop(10)
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.Row(f =>
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{
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f.RelativeItem().Text($"Gedruckt am {printedAt:dd.MM.yyyy HH:mm}").FontSize(8).FontColor(Colors.Grey.Darken1);
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f.RelativeItem().AlignRight().Text($"{occupied} / {total} belegt").FontSize(8).FontColor(Colors.Grey.Darken1);
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});
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});
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});
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return document.GeneratePdf();
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}
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private static void RenderPositionTable(IContainer container, AreaType area, int row, ShelfPosition position, List<StorageLocation> rowLocations)
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{
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var bySlot = rowLocations
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.Where(l => l.Position == position)
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.GroupBy(l => l.SlotNumber)
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.ToDictionary(g => g.Key, g => g.First());
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container.Column(col =>
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{
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col.Spacing(4);
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col.Item().Text(position.GetDisplayName()).Bold().FontSize(11);
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col.Item().Table(table =>
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{
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table.ColumnsDefinition(columns =>
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{
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columns.ConstantColumn(28);
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columns.ConstantColumn(34);
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columns.RelativeColumn(3);
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columns.RelativeColumn(2);
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columns.ConstantColumn(44);
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});
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table.Header(header =>
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{
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header.Cell().Element(HeaderCell).Text("Platz");
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header.Cell().Element(HeaderCell).Text("Code");
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header.Cell().Element(HeaderCell).Text("Kunde/Inhalt");
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header.Cell().Element(HeaderCell).Text("Fahrzeug");
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header.Cell().Element(HeaderCell).Text("Saison");
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});
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for (var slot = StorageLocation.MinSlot; slot <= StorageLocation.MaxSlot; slot++)
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{
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bySlot.TryGetValue(slot, out var location);
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var code = location?.Code ?? $"{(int)area}{row}{(int)position}{slot}";
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string content, vehicle, season;
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var muted = false;
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if (location is { IsOccupied: true, OccupiedTireStack: not null })
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{
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var stack = location.OccupiedTireStack;
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content = stack.Customer?.FullName ?? stack.CatalogItem?.Name ?? "Lager";
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vehicle = stack.Vehicle?.ShortName ?? "–";
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season = SeasonText(stack.Season);
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}
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else if (location is { IsOccupied: true })
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{
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content = "Belegt";
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vehicle = "–";
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season = "–";
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}
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else if (location is { IsAvailable: false })
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{
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content = "Gesperrt";
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vehicle = "–";
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season = "–";
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muted = true;
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}
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else
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{
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content = "Frei";
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vehicle = "–";
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season = "–";
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muted = true;
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}
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table.Cell().Element(BodyCell).Text(slot.ToString());
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table.Cell().Element(BodyCell).Text(code);
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table.Cell().Element(BodyCell).Text(t => Styled(t.Span(content), muted));
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table.Cell().Element(BodyCell).Text(t => Styled(t.Span(vehicle), muted));
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table.Cell().Element(BodyCell).Text(t => Styled(t.Span(season), muted));
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}
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});
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});
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}
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private static void Styled(TextSpanDescriptor span, bool muted)
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{
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if (muted)
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span.FontColor(Colors.Grey.Medium).Italic();
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}
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private static string SeasonText(TireSeason season) => season switch
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{
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TireSeason.Sommer => "Sommer",
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TireSeason.Winter => "Winter",
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TireSeason.Allrad => "Ganzjahr",
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_ => season.ToString()
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};
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private static IContainer HeaderCell(IContainer container) => container
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.Background(HeaderBackground)
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.Border(0.5f)
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.BorderColor(BorderColor)
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.PaddingVertical(3)
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.PaddingHorizontal(4)
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.DefaultTextStyle(x => x.Bold().FontSize(8));
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private static IContainer BodyCell(IContainer container) => container
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.Border(0.5f)
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.BorderColor(BorderColor)
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.PaddingVertical(3)
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.PaddingHorizontal(4)
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.DefaultTextStyle(x => x.FontSize(8));
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}
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