Documents: restructure Documents/ directory

Elwig/Documents/CreditNote.cs

@@ -0,0 +1,40 @@
+using Elwig.Helpers;
+using Elwig.Models;
+using Microsoft.EntityFrameworkCore;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Elwig.Documents {
+    public class CreditNote : BusinessDocument {
+
+        public Credit Credit;
+        public string? Text;
+        public string CurrencySymbol;
+        public string[] BinNames;
+        public int Precision;
+        public IEnumerable<DeliveryPart> Parts;
+
+        public CreditNote(Credit c, AppDbContext ctx) : base($"Traubengutschrift Nr. {c.TgId} – {c.Payment.Variant.Name}", c.Member) {
+            UseBillingAddress = true;
+            ShowDateAndLocation = true;
+            Credit = c;
+            Aside = Aside.Replace("</table>", "") +
+                $"<thead><tr><th colspan='2'>Gutschrift</th></tr></thead><tbody>" +
+                $"<tr><th>TG-Nr.</th><td>{c.TgId}</td></tr>" +
+                $"<tr><th>Überw. am</th><td>{c.Payment.Variant.TransferDate:dd.MM.yyyy}</td></tr>" +
+                $"<tr><th>Datum/Zeit</th><td>{c.ModifiedTimestamp:dd.MM.yyyy} / {c.ModifiedTimestamp:HH:mm}</td></tr>" +
+                $"</tbody></table>";
+            Text = App.Client.TextDeliveryNote;
+            DocumentId = $"Tr.-Gutschr. {c.TgId}";
+            CurrencySymbol = c.Payment.Variant.Season.Currency.Symbol ?? c.Payment.Variant.Season.Currency.Code;
+            BinNames = new string[0]; // FIXME
+            Precision = c.Payment.Variant.Season.Precision;
+            Parts = ctx.DeliveryParts.FromSql($"""
+                SELECT p.*
+                FROM v_delivery v
+                JOIN delivery_part p ON (p.year, p.did, p.dpnr) = (v.year, v.did, v.dpnr)
+                WHERE (v.year, v.mgnr) = ({c.Year}, {c.Member.MgNr})
+                ORDER BY sortid, LENGTH(attributes) DESC, attributes, kmw DESC, date, time, dpnr
+                """).ToList();
+        }
+    }}