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