54 lines
3.1 KiB
C#
54 lines
3.1 KiB
C#
using LehrerApp.Core.Models;
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using LehrerApp.Templating;
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namespace LehrerApp.Desktop.Services;
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/// <summary>
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/// Baut die Standard-Platzhalterwerte für Elternbrief-Vorlagen (Datum, Anrede, Kontaktadresse,
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/// Schülerdaten, Brieftext, ...). Ursprünglich Teil von
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/// <see cref="ViewModels.Students.CreateLetterDialogViewModel"/>, hierher extrahiert, damit
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/// <c>LetterTemplateTools</c> (MCP, siehe Planungsdokument) dieselbe Logik nutzt statt sie zu
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/// duplizieren — beide Aufrufer müssen exakt dieselben Platzhalternamen befüllen, sonst driften
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/// Dialog-generierte und KI-generierte Briefe unbemerkt auseinander.
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/// </summary>
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public static class LetterPlaceholderBuilder
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{
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public static Dictionary<string, PlaceholderValue> BuildStandardValues(
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Student student, Contact? contact, LearningGroup? group, DateOnly date,
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string letterText, string teacherName, DrawingValue? attendanceCalendar = null,
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DrawingValue? absenceDays = null)
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{
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var address = FormatAddress(contact);
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return new Dictionary<string, PlaceholderValue>(StringComparer.Ordinal)
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{
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["Datum"] = new DateValue(date), ["CurrentDate"] = new DateValue(date),
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["Empfaenger"] = new TextValue(contact?.Name ?? ""), ["Anrede"] = new TextValue(contact?.LetterSalutation ?? ""),
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["Brieftext"] = new MultilineValue(letterText), ["LehrerName"] = new TextValue(teacherName),
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["Student.FirstName"] = new TextValue(student.FirstName), ["Student.LastName"] = new TextValue(student.LastName),
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["Student.Name"] = new TextValue(student.FullName),
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["Contact.Name"] = new TextValue(contact?.Name ?? ""), ["Contact.Address"] = new MultilineValue(address),
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["Contact.Street"] = new TextValue(contact?.Street ?? ""), ["Contact.PostalCode"] = new TextValue(contact?.PostalCode ?? ""),
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["Contact.City"] = new TextValue(contact?.City ?? ""), ["Letter.Salutation"] = new TextValue(contact?.LetterSalutation ?? ""),
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["Group.Name"] = new TextValue(group?.Name ?? ""), ["SchoolYear"] = new TextValue(group?.SchoolYear ?? ""),
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[StudentAttendanceCalendarDrawingBuilder.PlaceholderName] = attendanceCalendar ?? new DrawingValue([], 0),
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[StudentAbsenceDayListDrawingBuilder.PlaceholderName] = absenceDays ?? new DrawingValue([], 0),
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};
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}
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/// <summary>Mehrzeilige Anschrift (Name/Straße/PLZ Ort) für Adressvorschau im Dialog und
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/// den <c>Contact.Address</c>-Platzhalter - eine Formatierung für beide Verwendungen.</summary>
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public static string FormatAddress(Contact? contact)
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{
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var cityLine = string.Join(" ", new[] { contact?.PostalCode, contact?.City }.Where(x => !string.IsNullOrWhiteSpace(x)));
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return string.Join(Environment.NewLine, new[] { contact?.Name, contact?.Street, cityLine }.Where(x => !string.IsNullOrWhiteSpace(x)));
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}
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public static bool IsEmpty(PlaceholderValue value) => value switch
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{
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TextValue x => string.IsNullOrWhiteSpace(x.Value),
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MultilineValue x => string.IsNullOrWhiteSpace(x.Value),
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DrawingValue x => x.ContentHeight <= 0 || x.Commands.Count == 0,
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_ => false,
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};
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}
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