import 'package:flutter/material.dart';
import 'package:instruction_app/screens/instruction_page/instruction_list_page.dart';
import 'package:instruction_app/screens/worker_page/list_workers_page.dart';
import 'package:instruction_app/screens/organization_page/list_organization_page.dart';
import 'package:instruction_app/screens/instruction_log_page/instruction_log_list_page.dart';

class HomePage extends StatefulWidget {
  const HomePage({Key? key}) : super(key: key);

  @override
  State<HomePage> createState() => _HomePageState();
}

class _HomePageState extends State<HomePage> {
  int _selectedIndex = 0;
  
  static final List<Widget> _pages = [
    const InstructionListPage(),
    const ListWorkersPage(),
    const OrganizationListPage(),
    const InstructionLogListPage()
  ];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      body: _pages[_selectedIndex],
      bottomNavigationBar: BottomNavigationBar(
        type: BottomNavigationBarType.fixed,
        currentIndex: _selectedIndex,
        onTap: (index) {
          setState(() {
            _selectedIndex = index;
          });
        },
        items: const [
          BottomNavigationBarItem(
            icon: Icon(Icons.description), 
            label: 'Инструктажи',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.people),
            label: 'Работники',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.business),
            label: 'Организации',
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.assignment),
            label: 'Журнал',
          ),
        ],
      ),
    );
  }
}