import 'package:flutter/material.dart';
import 'package:happy_camper_proto/checklist.dart';
import 'package:happy_camper_proto/listtemplates.dart';
import 'package:happy_camper_proto/preplist.dart';
import 'package:happy_camper_proto/templates_page.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key, required this.title});

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  late Widget page;
  int _selectedPage = 0;

  late List<Preplist> prepLists;
  late List<ListTemplate> listTemplates;

  void _showPage(int i) {
    _selectedPage = i;
    switch (_selectedPage) {
      case 0:
        page = PrepPage(prepLists: prepLists);
        break;
      case 1:
        page = TemplatesPage(templates: listTemplates);
        break;
      default:
        page = const Center(
          child: Text("Hello World"),
        );
    }
    setState(() {});
  }

  void _fabOnPress() async {
    switch (_selectedPage) {
      case 0:
        var item = await showDialog(
            context: context,
            builder: (context) {
              GlobalKey<FormState> formKey = GlobalKey();
              TextEditingController inputController = TextEditingController();

              return AlertDialog(
                title: const Text("New List"),
                content: Form(
                    key: formKey,
                    child: TextFormField(
                      controller: inputController,
                      decoration: const InputDecoration(hintText: "Name"),
                    )),
                actions: [
                  TextButton(
                      onPressed: () {
                        Navigator.of(context).pop(inputController.text);
                      },
                      child: const Text("Add"))
                ],
              );
            });
        prepLists.add(Preplist(name: item, tasks: []));
        break;
      case 1:
        var value = await showDialog(
            context: context,
            builder: (context) {
              GlobalKey<FormState> formKey = GlobalKey();
              TextEditingController inputController = TextEditingController();

              return AlertDialog(
                title: const Text("New Template"),
                content: Form(
                    key: formKey,
                    child: TextFormField(
                      controller: inputController,
                      decoration: const InputDecoration(hintText: "Name"),
                    )),
                actions: [
                  TextButton(
                      onPressed: () {
                        Navigator.of(context).pop(inputController.text);
                      },
                      child: const Text("Add"))
                ],
              );
            });
        listTemplates.add(ListTemplate(name: value));
        break;
      default:
        ScaffoldMessenger.of(context).showSnackBar(const SnackBar(
          content: Text("This page should not have a FAB"),
        ));
    }
    _showPage(_selectedPage);
  }

  @override
  void initState() {
    prepLists = Preplist.exampleData();
    listTemplates = ListTemplate.exampleData();
    page = PrepPage(prepLists: prepLists);
    super.initState();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        backgroundColor: Theme.of(context).colorScheme.inversePrimary,
        title: Text(widget.title),
      ),
      body: page,
      bottomNavigationBar: BottomNavigationBar(
        currentIndex: _selectedPage,
        selectedItemColor: Theme.of(context).colorScheme.inversePrimary,
        selectedFontSize:
            (Theme.of(context).textTheme.labelLarge?.fontSize ?? 10) + 1,
        onTap: _showPage,
        items: const [
          BottomNavigationBarItem(
            icon: Icon(Icons.check),
            label: "Prep",
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.checklist),
            label: "Templates",
          ),
          BottomNavigationBarItem(
            icon: Icon(Icons.route),
            label: "Route",
          ),
        ],
      ),
      floatingActionButton: (_selectedPage == 0 || _selectedPage == 1)
          ? FloatingActionButton(
              mini: true,
              onPressed: _fabOnPress,
              child: const Icon(Icons.add),
            )
          : null,
      floatingActionButtonLocation:
          FloatingActionButtonLocation.miniCenterFloat,
    );
  }
}