// home_screen.dart - ダッシュボード（メインメニュー）
import 'package:flutter/material.dart';

class HomeScreen extends StatefulWidget {
  const HomeScreen({super.key});

  @override
  State<HomeScreen> createState() => _HomeScreenState();
}

class _HomeScreenState extends State<HomeScreen> {
  static const List<_MenuItem> _menuItems = <_MenuItem>[
    _MenuItem(title: '見積入力', route: '/estimate'),
    _MenuItem(title: '在庫管理', route: '/inventory'),
    _MenuItem(title: '商品マスタ', route: '/master/product'),
    _MenuItem(title: '得意先マスタ', route: '/master/customer'),
    _MenuItem(title: '仕入先マスタ', route: '/master/supplier'),
    _MenuItem(title: '倉庫マスタ', route: '/master/warehouse'),
    _MenuItem(title: '担当マスタ', route: '/master/employee'),
  ];

  static const Map<String, IconData> _menuIconMap = <String, IconData>{
    '/estimate': Icons.description_outlined,
    '/inventory': Icons.inventory_2_outlined,
    '/master/product': Icons.shopping_cart_outlined,
    '/master/customer': Icons.people_outlined,
    '/master/supplier': Icons.business_outlined,
    '/master/warehouse': Icons.storage_outlined,
    '/master/employee': Icons.person_outlined,
  };

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: const Text('/ホーム：メインメニュー'),),
      body: SingleChildScrollView(
        padding: const EdgeInsets.all(16),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: <Widget>[
            const Text('ダッシュボード', style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold)),
            const SizedBox(height: 8),
            // メニューボタン群
            ..._menuItems.map((item) => Padding(
              padding: const EdgeInsets.only(bottom: 4),
              child: ListTile(
                leading: Icon(_menuIconMap[item.route]),
                title: Text(item.title),
                subtitle: const Text('タスクをここから開始します'),
                onTap: () => Navigator.pushNamed(context, item.route),
              ),
            ),),
            const SizedBox(height: 32),
            const Text('/S. 売上入力（レジ）', style: TextStyle(fontWeight: FontWeight.bold)),
            const SizedBox(height: 8),
            Center(
              child: Padding(
                padding: const EdgeInsets.all(32),
                child: Column(
                  children: <Widget>[
                    Icon(Icons.add_shopping_cart, size: 64, color: Colors.orange),
                    const SizedBox(height: 16),
                    ElevatedButton.icon(
                      icon: const Icon(Icons.point_of_sale),
                      label: const Text('売上入力画面へ'),
                      onPressed: () => Navigator.pushNamed(context, '/sales'),
                    ),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}

class _MenuItem {
  final String title;
  final String route;

  const _MenuItem({required this.title, required this.route});
}