Add infrastructure layer with persistence and services

- EF Core DbContext and entity configurations - Design-time factory for migrations - Initial and soft-delete migrations - Service implementations: Account, AccountYear, Entry, BalanceQuery, FileSave, PdfStatement - Dependency injection registration
2026-03-31 17:12:57 +02:00
parent 8fbb8b8ea2
commit c3d68020d5
19 changed files with 1450 additions and 0 deletions
@@ -0,0 +1,150 @@
+using System.Globalization;
+using Duempelkas.App.Services;
+using Duempelkas.App.Services.Models;
+using Duempelkas.Domain.Enums;
+using Duempelkas.Infrastructure.Persistence;
+using Microsoft.EntityFrameworkCore;
+using QuestPDF.Fluent;
+using QuestPDF.Helpers;
+using QuestPDF.Infrastructure;
+
+namespace Duempelkas.Infrastructure.Services;
+
+public class PdfStatementService : IPdfStatementService
+{
+    private readonly FinanceDbContext _db;
+    private readonly IEntryService _entryService;
+    private readonly IBalanceQueryService _balanceQueryService;
+    private static readonly CultureInfo DeLocale = new("de-DE");
+
+    public PdfStatementService(FinanceDbContext db, IEntryService entryService, IBalanceQueryService balanceQueryService)
+    {
+        _db = db;
+        _entryService = entryService;
+        _balanceQueryService = balanceQueryService;
+    }
+
+    public async Task<byte[]> GenerateStatementAsync(int accountId, bool currentYearOnly)
+    {
+        var account = await _db.Accounts.FindAsync(accountId)
+            ?? throw new InvalidOperationException($"Konto {accountId} nicht gefunden.");
+
+        var entries = await _entryService.GetEntriesAsync(accountId, currentYearOnly);
+        var balance = await _balanceQueryService.GetAccountBalanceAsync(accountId);
+
+        var title = currentYearOnly
+            ? $"{account.Name} – Auszug {DateTime.Now.Year}"
+            : $"{account.Name} – Gesamtauszug";
+
+        var document = Document.Create(container =>
+        {
+            container.Page(page =>
+            {
+                page.Size(PageSizes.A4);
+                page.MarginHorizontal(40);
+                page.MarginVertical(30);
+                page.DefaultTextStyle(x => x.FontSize(10));
+
+                page.Header().Column(col =>
+                {
+                    col.Item().Text(account.Name).Bold().FontSize(20);
+                    col.Item().Text(title).FontSize(14).FontColor(Colors.Grey.Darken1);
+                    col.Item().PaddingTop(5).Text($"Erstellt am: {DateTime.Now:dd.MM.yyyy}").FontSize(8).FontColor(Colors.Grey.Medium);
+                    col.Item().PaddingTop(10).LineHorizontal(1).LineColor(Colors.Grey.Lighten2);
+                });
+
+                page.Content().PaddingTop(15).Column(col =>
+                {
+                    col.Item().PaddingBottom(10).Row(row =>
+                    {
+                        row.RelativeItem().Text("Übertrag:").SemiBold();
+                        row.AutoItem().Text(FormatCurrency(balance.CarryoverBalance)).SemiBold();
+                    });
+
+                    col.Item().Table(table =>
+                    {
+                        table.ColumnsDefinition(columns =>
+                        {
+                            columns.ConstantColumn(80);
+                            columns.ConstantColumn(80);
+                            columns.RelativeColumn();
+                            columns.ConstantColumn(100);
+                        });
+
+                        table.Header(header =>
+                        {
+                            header.Cell().BorderBottom(1).BorderColor(Colors.Grey.Darken1)
+                                .PaddingBottom(5).Text("Datum").SemiBold();
+                            header.Cell().BorderBottom(1).BorderColor(Colors.Grey.Darken1)
+                                .PaddingBottom(5).Text("Nr.").SemiBold();
+                            header.Cell().BorderBottom(1).BorderColor(Colors.Grey.Darken1)
+                                .PaddingBottom(5).Text("Bezeichnung").SemiBold();
+                            header.Cell().BorderBottom(1).BorderColor(Colors.Grey.Darken1)
+                                .PaddingBottom(5).AlignRight().Text("Betrag").SemiBold();
+                        });
+
+                        foreach (var entry in entries)
+                        {
+                            var titleText = entry.Title;
+                            if (entry.IsTransfer && !string.IsNullOrEmpty(entry.LinkedAccountName))
+                            {
+                                var prefix = entry.Type == EntryType.Expense ? "an" : "von";
+                                titleText += $" ({prefix} {entry.LinkedAccountName})";
+                            }
+
+                            table.Cell().BorderBottom(0.5f).BorderColor(Colors.Grey.Lighten2)
+                                .PaddingVertical(3).Text(entry.Date.ToString("dd.MM.yyyy"));
+                            table.Cell().BorderBottom(0.5f).BorderColor(Colors.Grey.Lighten2)
+                                .PaddingVertical(3).Text(entry.DisplayId);
+                            table.Cell().BorderBottom(0.5f).BorderColor(Colors.Grey.Lighten2)
+                                .PaddingVertical(3).Text(titleText);
+                            table.Cell().BorderBottom(0.5f).BorderColor(Colors.Grey.Lighten2)
+                                .PaddingVertical(3).AlignRight()
+                                .Text($"{(entry.Type == EntryType.Income ? "+" : "−")}{FormatCurrency(entry.Amount)}")
+                                .FontColor(entry.Type == EntryType.Income ? Colors.Green.Darken1 : Colors.Red.Darken1);
+                        }
+                    });
+
+                    col.Item().PaddingTop(20).LineHorizontal(1).LineColor(Colors.Grey.Lighten2);
+                    col.Item().PaddingTop(10).Column(summaryCol =>
+                    {
+                        SummaryRow(summaryCol, "Übertrag:", balance.CarryoverBalance);
+                        SummaryRow(summaryCol, "Einnahmen gesamt:", balance.TotalIncome);
+                    SummaryRow(summaryCol, "Ausgaben gesamt:", -balance.TotalExpense);
+                        summaryCol.Item().PaddingTop(5).Row(row =>
+                        {
+                            row.RelativeItem().Text("Saldo:").Bold().FontSize(12);
+                            row.AutoItem().Text(FormatCurrency(balance.TotalBalance)).Bold().FontSize(12)
+                                .FontColor(balance.TotalBalance >= 0 ? Colors.Green.Darken1 : Colors.Red.Darken1);
+                        });
+                    });
+                });
+
+                page.Footer().AlignCenter().Text(text =>
+                {
+                    text.Span("Seite ");
+                    text.CurrentPageNumber();
+                    text.Span(" von ");
+                    text.TotalPages();
+                });
+            });
+        });
+
+        return document.GeneratePdf();
+    }
+
+    private static void SummaryRow(ColumnDescriptor col, string label, decimal value)
+    {
+        col.Item().PaddingVertical(2).Row(row =>
+        {
+            row.RelativeItem().Text(label);
+            row.AutoItem().Text(FormatCurrency(value))
+                .FontColor(value >= 0 ? Colors.Green.Darken1 : Colors.Red.Darken1);
+        });
+    }
+
+    private static string FormatCurrency(decimal amount)
+    {
+        return amount.ToString("N2", DeLocale) + " €";
+    }
+}