import 'package:flutter/material.dart';
import 'package:go_router/go_router.dart';

/// 底部导航 Shell — 2 Tab（Home / Mine）。
/// Tab 标签文字在 Task 5 替换为 i18n 字符串。
class ShellScaffold extends StatelessWidget {
  const ShellScaffold({super.key, required this.shell});

  final StatefulNavigationShell shell;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: shell,
      bottomNavigationBar: NavigationBar(
        selectedIndex: shell.currentIndex,
        onDestinationSelected: (index) => shell.goBranch(
          index,
          initialLocation: index == shell.currentIndex,
        ),
        destinations: const [
          NavigationDestination(
            icon: Icon(Icons.home_outlined),
            selectedIcon: Icon(Icons.home),
            label: 'Home', // TODO: i18n → t.tab.home
          ),
          NavigationDestination(
            icon: Icon(Icons.person_outline),
            selectedIcon: Icon(Icons.person),
            label: 'Mine', // TODO: i18n → t.tab.mine
          ),
        ],
      ),
    );
  }
}