Feature

ein paar feature aber datenbank macht probleme wenn man aufträge speichern möchge

services/workflow_metrics_service.dart

@@ -0,0 +1,82 @@
+import 'package:shared_preferences/shared_preferences.dart';
+
+import '../models/dokument_typ.dart';
+
+/// Lokale Kennzahlen (keine Cloud) – Fokus: PDFs & Dokumenttypen.
+class WorkflowMetricsService {
+  WorkflowMetricsService._();
+
+  static const _kPdfTotal = 'hp_metrics_pdf_total';
+  static const _kPdfWeek = 'hp_metrics_pdf_week';
+  static const _kPdfWeekId = 'hp_metrics_pdf_week_id';
+  static const _kLastPdfAt = 'hp_metrics_last_pdf_at';
+  static const _kPrefixDoc = 'hp_metrics_doc_';
+
+  static DateTime _montagNullUhr(DateTime d) {
+    final t = DateTime(d.year, d.month, d.day);
+    return t.subtract(Duration(days: t.weekday - DateTime.monday));
+  }
+
+  static int _kalenderWocheSchluessel(DateTime d) {
+    final m = _montagNullUhr(d);
+    return m.year * 10000 + m.month * 100 + m.day;
+  }
+
+  static Future<void> recordPdfExported() async {
+    final p = await SharedPreferences.getInstance();
+    final now = DateTime.now();
+    final wid = _kalenderWocheSchluessel(now);
+    final stored = p.getInt(_kPdfWeekId);
+    var week = p.getInt(_kPdfWeek) ?? 0;
+    if (stored != wid) {
+      week = 0;
+      await p.setInt(_kPdfWeekId, wid);
+    }
+    week += 1;
+    final total = (p.getInt(_kPdfTotal) ?? 0) + 1;
+    await p.setInt(_kPdfWeek, week);
+    await p.setInt(_kPdfTotal, total);
+    await p.setString(_kLastPdfAt, now.toIso8601String());
+  }
+
+  static Future<void> recordDokumentGespeichert(DokumentTyp typ) async {
+    final p = await SharedPreferences.getInstance();
+    final k = '$_kPrefixDoc${typ.storageValue}';
+    await p.setInt(k, (p.getInt(k) ?? 0) + 1);
+  }
+
+  static Future<WorkflowMetricsSnapshot> load() async {
+    final p = await SharedPreferences.getInstance();
+    final wid = _kalenderWocheSchluessel(DateTime.now());
+    final stored = p.getInt(_kPdfWeekId);
+    final week = (stored == wid) ? (p.getInt(_kPdfWeek) ?? 0) : 0;
+    final total = p.getInt(_kPdfTotal) ?? 0;
+    final last = DateTime.tryParse(p.getString(_kLastPdfAt) ?? '');
+    final byDoc = <String, int>{};
+    for (final t in DokumentTyp.values) {
+      final k = '$_kPrefixDoc${t.storageValue}';
+      final n = p.getInt(k);
+      if (n != null && n > 0) byDoc[t.storageValue] = n;
+    }
+    return WorkflowMetricsSnapshot(
+      pdfThisCalendarWeek: week,
+      pdfAllTime: total,
+      lastPdfAt: last,
+      savesByDokumentTyp: byDoc,
+    );
+  }
+}
+
+class WorkflowMetricsSnapshot {
+  WorkflowMetricsSnapshot({
+    required this.pdfThisCalendarWeek,
+    required this.pdfAllTime,
+    required this.lastPdfAt,
+    required this.savesByDokumentTyp,
+  });
+
+  final int pdfThisCalendarWeek;
+  final int pdfAllTime;
+  final DateTime? lastPdfAt;
+  final Map<String, int> savesByDokumentTyp;
+}