dissolve app/ into repo root (D-056)

Single Flutter package at the repo root. All code, tests, assets, and platform directories moved from app/ to root. Package renamed from clide_app to clide — all imports rewritten. Merged pubspec combines core (ffi) and app (flutter, yaml, xterm) dependencies. Makefile simplified: no APP_PRESENT conditionals, no cd, no daemon lifecycle. 317 tests pass. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-04-23 00:37:20 +02:00
parent a526c5b9b7
commit 46329700d5
394 changed files with 978 additions and 1090 deletions
@@ -0,0 +1,55 @@
+import 'dart:ui';
+
+import 'package:flutter/foundation.dart';
+
+/// Resolves the ordered list of locales to try when looking up a key.
+///
+/// Order, starting from the current locale:
+///   1. exact (language + country)      — e.g. nl_NL
+///   2. language-only                    — e.g. nl
+///   3. default language + country       — e.g. en_US
+///   4. default language-only            — e.g. en
+///
+/// Duplicates are removed while preserving order. `null` country code is
+/// canonicalized by omitting it (not empty string) so equality works.
+@immutable
+class FallbackChain {
+  const FallbackChain({
+    required this.current,
+    required this.defaultLocale,
+  });
+
+  final Locale current;
+  final Locale defaultLocale;
+
+  List<Locale> resolve() {
+    final out = <Locale>[];
+    for (final l in [
+      current,
+      Locale(current.languageCode),
+      defaultLocale,
+      Locale(defaultLocale.languageCode),
+    ]) {
+      final canon = _canon(l);
+      if (!out.any((e) => _canon(e) == canon)) {
+        out.add(l);
+      }
+    }
+    return out;
+  }
+
+  static String _canon(Locale l) {
+    final country = l.countryCode;
+    if (country == null || country.isEmpty) return l.languageCode;
+    return '${l.languageCode}_$country';
+  }
+
+  /// Canonical filename suffix for a locale, matching fframe: `en_us`
+  /// (lowercase, country only when present).
+  static String filenameSuffix(Locale l) {
+    final lang = l.languageCode.toLowerCase();
+    final country = l.countryCode?.toLowerCase();
+    if (country == null || country.isEmpty) return lang;
+    return '${lang}_$country';
+  }
+}