Мои растения

import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_auth/firebase_auth.dart';
import 'package:firebase_core/firebase_core.dart';
import 'package:flutter/material.dart';
import 'dart:async';
import 'package:plantual_1/utils/utils.dart';

import '../notificationsController.dart';

class myPlants extends StatefulWidget{
  @override
  State<myPlants> createState() => _myPlantsState();
}

void _main()async{
  WidgetsFlutterBinding.ensureInitialized();
  await Firebase.initializeApp();
}

class _myPlantsState extends State<myPlants>{
  final auth = FirebaseAuth.instance;
  Timer? countdownTimer;
  Duration myDuration = Duration(days: 3);

  @override
  Widget build(BuildContext context) {
    final _auth = auth.currentUser!.uid.toString();
    return Column(
      children: [
        StreamBuilder<QuerySnapshot>(
            stream: FirebaseFirestore.instance.collection(_auth).snapshots(),
            builder: (context, snapshot){
              List<Column> plantWidgets = [];

              if(snapshot.hasData){
                final plants = snapshot.data?.docs.reversed.toList();
                for(var plant in plants!){
                  final _auth = FirebaseAuth.instance;
                  var date = int.parse(plant['step']!);
                  var dateN = new DateTime.now().add(Duration(days: date)).toString();
                  var dateNext = DateTime.parse(dateN);
                  var asd = DateTime.now().difference(dateNext);
                  DateTime now = DateTime.now();
                  final plantWidget = Column(
                    children: [
                      Container(
                            width: MediaQuery.of(context).size.width * 0.8,
                            height: 1,
                            color: Colors.grey[300]
                        ),
                        Container(
                          color: Colors.white,
                          width: double.infinity,
                          height: MediaQuery.of(context).size.width * 0.29 + 20,
                          child: Row(
                            mainAxisAlignment: MainAxisAlignment.start,
                            children: [
                              const Padding(padding: EdgeInsets.only(left: 10)),
                              Column(
                                mainAxisAlignment: MainAxisAlignment.center,
                                crossAxisAlignment: CrossAxisAlignment.center,
                                children: [
                                  Container(
                                    width: MediaQuery.of(context).size.width * 0.23,
                                    height: MediaQuery.of(context).size.width * 0.23,
                                    child: _kartinka(ElementImage: plant['image']),
                                  )
                                ],
                              ),
                              const Padding(padding: EdgeInsets.only(left: 10)),
                              Flexible(
                                child: Container(
                                  width: MediaQuery.of(context).size.width * 0.62,
                                  child: Column(
                                    mainAxisAlignment: MainAxisAlignment.center,
                                    crossAxisAlignment: CrossAxisAlignment.start,
                                    children: [
                                      Text(plant['name'], style: const TextStyle(fontSize: 18)),
                                      Text(dateNext.minute > 9 ? 'Дата следующего полива ${plant['dateDay']}-${plant['dateMonth']}-${plant['dateYear']} в ${plant['dateHour']}:${plant['dateMinute']}' : 'Дата следующего полива ${plant['dateDay']}-${plant['dateMonth']}-${plant['dateYear']} в ${plant['dateHour']}:0${plant['dateMinute']}', style: const TextStyle(color: Colors.grey, fontSize: 16),),
                                      Container(
                                        width: double.infinity,
                                          child: ElevatedButton(
                                              onPressed: (){
                                                NotificationService().showNotification(
                                                  title: 'samole',
                                                  body: 'dadad'
                                                );
                                                DateTime now = DateTime.now();
                                                var date = int.parse(plant['step']!);
                                                var dateN = new DateTime.now().add(Duration(days: date)).toString();
                                                var dateNext = DateTime.parse(dateN);
                                                var asd = DateTime.now().difference(dateNext);
                                                assert(date is int);
                                                String user = _auth.currentUser!.uid.toString();
                                                CollectionReference collectionReference = FirebaseFirestore.instance.collection(user);
                                                print(asd.inSeconds);
                                                if(asd.inSeconds < 0){
                                                  utilsError().toastMessage('Полейте позже');
                                                }else{
                                                if((dateNext.hour + 5) > 24){
                                                  collectionReference.doc(plant['name']).set({
                                                    'name': '${plant['name']}',
                                                    'image': '${plant['image']}',
                                                    'dateDay': '${dateNext.day.toString().padLeft(2,'0')}',
                                                    'dateMonth': '${dateNext.month.toString().padLeft(2,'0')}',
                                                    'dateYear': '${dateNext.year}',
                                                    'dateHour': '${(24 - (dateNext.hour + 5)).toString().padLeft(2,'0')}',
                                                    'dateMinute': dateNext.minute > 9 ? '${dateNext.minute.toString().padLeft(2,'0')}' : '0${dateNext.minute.toString().padLeft(2,'0')}',
                                                    'step': '${plant['step']}',
                                                    'page': '${plant['page']}'
                                                  });
                                                }else{
                                                  collectionReference.doc(plant['name']).set({
                                                    'name': '${plant['name']}',
                                                    'image': '${plant['image']}',
                                                    'dateDay': '${dateNext.day.toString().padLeft(2,'0')}',
                                                    'dateMonth': '${dateNext.month.toString().padLeft(2,'0')}',
                                                    'dateYear': '${dateNext.year}',
                                                    'dateHour': '${(dateNext.hour + 5).toString().padLeft(2,'0')}',
                                                    'dateMinute': dateNext.minute > 9 ? '${dateNext.minute.toString().padLeft(2,'0')}' : '0' + '${dateNext.minute.toString().padLeft(2,'0')}',
                                                    'step': '${plant['step']}',
                                                    'page': '${plant['page']}'
                                                  });
                                                }}
                                              },
                                              child: Text('Полил'),
                                          )
                                      ),
                                      ///Text(plant['date'], style: const TextStyle(color: Colors.grey, fontSize: 16),)
                                    ],
                                  ),
                                ),
                              ),
                              Column(
                                mainAxisAlignment: MainAxisAlignment.start,
                                children: [
                                  IconButton(onPressed: (){
                                      FirebaseFirestore.instance.collection(
                                          _auth.currentUser!.uid.toString())
                                          .doc(plant['name'])
                                          .delete();
                                    },
                                      icon: Icon(Icons.delete))
                                ],
                              )
                            ],
                          ),
                        )
                      ],
                    );
                  plantWidgets.add(plantWidget);
                }
              }
              return Expanded(
                child: ListView(
                  children: plantWidgets,
                ),
              );
            }
        ),
      ],
    );
  }
}

class _kartinka extends StatelessWidget {
  final String ElementImage;
  const _kartinka({super.key, required this.ElementImage});

  @override
  Widget build(BuildContext context) {
    return ClipRRect(
        borderRadius: BorderRadius.circular(16),
        child: SizedBox.fromSize(
            size: const Size.fromRadius(16),
            child: Image.network(ElementImage, fit: BoxFit.fitWidth)
        )
    );
  }
}