adding i18n for dynamic page

2026-10-02 22:03:21 +05:30
parent 63ecc3e7e6
commit 2527b957aa
23 changed files with 3053 additions and 2 deletions
@@ -0,0 +1,43 @@
+import 'dart:convert';
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:provider/provider.dart';
+import '../providers/locale_provider.dart';
+
+/// Lightweight runtime reader for builder-generated dynamic strings (Group-2).
+/// Generated Hybrid screens call: `DynamicStrings.of(context).tr('phone_number')`
+/// No heavy package, no ML model, no network: pure JSON maps (KBs) + Provider.
+/// Fallback chain: current lang -> English -> pretty key. Never crashes.
+///
+/// Bootstrap loads embedded assets once (see main.dart):
+///   assets/translations_dynamic/en.json, hi.json
+/// Later, portal-backend diffs merge via LocaleProvider.updateFromServer().
+class DynamicStrings {
+  final LocaleProvider _provider;
+  DynamicStrings._(this._provider);
+
+  /// Listens to locale changes so Text rebuilds on language switch.
+  static DynamicStrings of(BuildContext context) {
+    return DynamicStrings._(Provider.of<LocaleProvider>(context));
+  }
+
+  String tr(String key) => _provider.trDynamic(key);
+
+  /// Preload embedded asset tables. Call once before runApp finishes splash.
+  static Future<Map<String, Map<String, String>>> loadEmbedded() async {
+    final out = <String, Map<String, String>>{};
+    for (final lang in LocaleProvider.supportedCodes) {
+      try {
+        final raw = await rootBundle.loadString('assets/translations_dynamic/$lang.json');
+        final decoded = jsonDecode(raw) as Map<String, dynamic>;
+        out[lang] = decoded.map((k, v) => MapEntry(
+              k.toString().trim().toLowerCase().replaceAll(RegExp(r'\s+'), '_'),
+              v.toString(),
+            ));
+      } catch (_) {
+        out[lang] = {};
+      }
+    }
+    return out;
+  }
+}