多语言支持

lib/screens/history_screen.dart

@@ -4,6 +4,7 @@ import '../theme/app_text_styles.dart';
 import '../models/focus_session.dart';
 import '../services/storage_service.dart';
 import 'package:intl/intl.dart';
+import '../l10n/app_localizations.dart';
 
 /// History Screen - Shows past focus sessions
 class HistoryScreen extends StatefulWidget {
@@ -18,6 +19,7 @@ class _HistoryScreenState extends State<HistoryScreen> {
 
   @override
   Widget build(BuildContext context) {
+    final l10n = AppLocalizations.of(context)!;
     final sessions = _storageService.getAllSessions();
     final todayTotal = _storageService.getTodayTotalMinutes();
     final todayDistractions = _storageService.getTodayDistractionCount();
@@ -44,16 +46,17 @@ class _HistoryScreenState extends State<HistoryScreen> {
     return Scaffold(
       backgroundColor: AppColors.background,
       appBar: AppBar(
-        title: const Text('Your Focus Journey'),
+        title: Text(l10n.yourFocusJourney),
         backgroundColor: AppColors.background,
       ),
       body: sessions.isEmpty
-          ? _buildEmptyState(context)
+          ? _buildEmptyState(context, l10n)
           : ListView(
               padding: const EdgeInsets.all(24),
               children: [
                 // Today's Summary Card
                 _buildTodaySummary(
+                  l10n,
                   todayTotal,
                   todayDistractions,
                   todayCompleted,
@@ -64,14 +67,14 @@ class _HistoryScreenState extends State<HistoryScreen> {
                 // Sessions by date
                 ...sortedDates.map((date) {
                   final dateSessions = sessionsByDate[date]!;
-                  return _buildDateSection(date, dateSessions);
+                  return _buildDateSection(l10n, date, dateSessions);
                 }),
               ],
             ),
     );
   }
 
-  Widget _buildEmptyState(BuildContext context) {
+  Widget _buildEmptyState(BuildContext context, AppLocalizations l10n) {
     return Center(
       child: Padding(
         padding: const EdgeInsets.all(32.0),
@@ -84,13 +87,13 @@ class _HistoryScreenState extends State<HistoryScreen> {
             ),
             const SizedBox(height: 24),
             Text(
-              'No focus sessions yet',
+              l10n.noFocusSessionsYet,
               style: AppTextStyles.headline,
               textAlign: TextAlign.center,
             ),
             const SizedBox(height: 12),
             Text(
-              'Start your first session\nto see your progress here!',
+              l10n.startFirstSession,
               style: AppTextStyles.helperText,
               textAlign: TextAlign.center,
             ),
@@ -105,7 +108,7 @@ class _HistoryScreenState extends State<HistoryScreen> {
     );
   }
 
-  Widget _buildTodaySummary(int totalMins, int distractions, int completed) {
+  Widget _buildTodaySummary(AppLocalizations l10n, int totalMins, int distractions, int completed) {
     return Container(
       padding: const EdgeInsets.all(24),
       decoration: BoxDecoration(
@@ -117,9 +120,9 @@ class _HistoryScreenState extends State<HistoryScreen> {
         children: [
           Row(
             children: [
-              const Text(
-                '📅 Today',
-                style: TextStyle(
+              Text(
+                '📅 ${l10n.today}',
+                style: const TextStyle(
                   fontFamily: 'Nunito',
                   fontSize: 20,
                   fontWeight: FontWeight.w600,
@@ -137,7 +140,7 @@ class _HistoryScreenState extends State<HistoryScreen> {
                   borderRadius: BorderRadius.circular(12),
                 ),
                 child: Text(
-                  '$completed ${completed == 1 ? 'session' : 'sessions'}',
+                  l10n.sessions(completed),
                   style: const TextStyle(
                     fontFamily: 'Nunito',
                     fontSize: 14,
@@ -152,13 +155,13 @@ class _HistoryScreenState extends State<HistoryScreen> {
           Row(
             children: [
               Expanded(
-                child: _buildStat('Total', '$totalMins mins', '⏱️'),
+                child: _buildStat('Total', l10n.minutesValue(totalMins, l10n.minutes(totalMins)), '⏱️'),
               ),
               const SizedBox(width: 16),
               Expanded(
                 child: _buildStat(
                   'Distractions',
-                  '$distractions ${distractions == 1 ? 'time' : 'times'}',
+                  l10n.distractionsCount(distractions, l10n.times(distractions)),
                   '🤚',
                 ),
               ),
@@ -201,10 +204,10 @@ class _HistoryScreenState extends State<HistoryScreen> {
     );
   }
 
-  Widget _buildDateSection(DateTime date, List<FocusSession> sessions) {
+  Widget _buildDateSection(AppLocalizations l10n, DateTime date, List<FocusSession> sessions) {
     final isToday = _isToday(date);
     final dateLabel = isToday
-        ? 'Today'
+        ? l10n.today
         : DateFormat('EEE, MMM d').format(date);
 
     final totalMinutes = sessions.fold<int>(
@@ -231,7 +234,7 @@ class _HistoryScreenState extends State<HistoryScreen> {
               ),
               const SizedBox(width: 12),
               Text(
-                '($totalMinutes mins)',
+                '(${l10n.minutesValue(totalMinutes, l10n.minutes(totalMinutes))})',
                 style: const TextStyle(
                   fontFamily: 'Nunito',
                   fontSize: 16,
@@ -244,15 +247,15 @@ class _HistoryScreenState extends State<HistoryScreen> {
         ),
 
         // Session cards
-        ...sessions.map((session) => _buildSessionCard(session)),
+        ...sessions.map((session) => _buildSessionCard(l10n, session)),
       ],
     );
   }
 
-  Widget _buildSessionCard(FocusSession session) {
+  Widget _buildSessionCard(AppLocalizations l10n, FocusSession session) {
     final timeStr = DateFormat('HH:mm').format(session.startTime);
     final statusEmoji = session.completed ? '✅' : '⏸️';
-    final statusText = session.completed ? 'Completed' : 'Stopped early';
+    final statusText = session.completed ? l10n.completed : l10n.stoppedEarly;
 
     return Container(
       margin: const EdgeInsets.only(bottom: 12),
@@ -286,14 +289,14 @@ class _HistoryScreenState extends State<HistoryScreen> {
               crossAxisAlignment: CrossAxisAlignment.start,
               children: [
                 Text(
-                  '${session.actualMinutes} ${session.actualMinutes == 1 ? 'minute' : 'minutes'}',
+                  l10n.minutesValue(session.actualMinutes, l10n.minutes(session.actualMinutes)),
                   style: AppTextStyles.bodyText,
                 ),
                 if (session.distractionCount > 0)
                   Padding(
                     padding: const EdgeInsets.only(top: 4),
                     child: Text(
-                      '🤚 ${session.distractionCount} ${session.distractionCount == 1 ? 'distraction' : 'distractions'}',
+                      l10n.distractionsCount(session.distractionCount, l10n.times(session.distractionCount)),
                       style: const TextStyle(
                         fontFamily: 'Nunito',
                         fontSize: 14,