import 'package:flutter/material.dart';
import 'package:todo/data/database.dart';
import 'package:todo/utils/dialog_box.dart';
import 'package:todo/utils/todo_tile.dart';
import 'package:hive_flutter/hive_flutter.dart';

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

  final String title;

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

class _MyHomePageState extends State<MyHomePage> {
  //reference hive todo box
  final _myBox = Hive.box('todoBox');

  ToDoDataBase db = ToDoDataBase();

  final _controller = TextEditingController();

  @override
  void initState() {
    // TODO: implement initState
    // first time
    if (_myBox.get('todos') == null) {
      db.createInitialData();
    } else {
      db.loadData();
    }

    super.initState();
  }

  void checkBoxChanged(bool? value, int index) {
    setState(() {
      db.todoList[index][1] = !db.todoList[index][1];
    });
    db.updateData();
  }

  void saveNewTask() {
    setState(() {
      db.todoList.add([_controller.text, false]);
      _controller.clear();
    });
    db.updateData();
    Navigator.of(context).pop();
  }

  void createNewTask() {
    showDialog(
        context: context,
        builder: (context) {
          return DialogBox(
            controller: _controller,
            onCancel: () => Navigator.of(context).pop(),
            onSave: saveNewTask,
          );
        });
  }

  void deleteTask(int index) {
    setState(() {
      db.todoList.removeAt(index);
    });
    db.updateData();
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: ListView.builder(
          itemCount: db.todoList.length,
          itemBuilder: (context, index) {
            return ToDoTile(
              taskName: db.todoList[index][0],
              taskCompleted: db.todoList[index][1],
              onChanged: (value) => checkBoxChanged(value, index),
              deleteFunction: (context) => deleteTask(index),
            );
          }),
      floatingActionButton: FloatingActionButton(
        onPressed: createNewTask,
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ), // This trailing comma makes auto-formatting nicer for build methods.
    );
  }
}