libretranslatr

2026-07-14 17:37:17 +03:00
parent 1b8149a4cf
commit 8a562e5bf6
46 changed files with 2040 additions and 106 deletions
@@ -0,0 +1,33 @@
+import 'dart:convert';
+import 'package:shared_preferences/shared_preferences.dart';
+import '../models/history_item.dart';
+
+class HistoryService {
+  static const _key = 'translation_history';
+  static const _maxItems = 200;
+
+  Future<List<HistoryItem>> getAll() async {
+    final prefs = await SharedPreferences.getInstance();
+    final raw = prefs.getStringList(_key) ?? [];
+    return raw
+        .map((s) => HistoryItem.fromJson(jsonDecode(s) as Map<String, dynamic>))
+        .toList()
+        .reversed
+        .toList(); // en yeni en üstte
+  }
+
+  Future<void> add(HistoryItem item) async {
+    final prefs = await SharedPreferences.getInstance();
+    final raw = prefs.getStringList(_key) ?? [];
+    raw.add(jsonEncode(item.toJson()));
+    final trimmed = raw.length > _maxItems
+        ? raw.sublist(raw.length - _maxItems)
+        : raw;
+    await prefs.setStringList(_key, trimmed);
+  }
+
+  Future<void> clear() async {
+    final prefs = await SharedPreferences.getInstance();
+    await prefs.remove(_key);
+  }
+}