import 'package:flutter/material.dart';
import 'package:smoke_cess_app/models/sleep.dart';
import 'package:smoke_cess_app/service/database_service.dart';
import 'package:smoke_cess_app/widgets/elevated_card.dart';
import 'package:smoke_cess_app/widgets/slider.dart';
import 'package:smoke_cess_app/widgets/submit_form_button.dart';
import 'package:smoke_cess_app/widgets/text_formfield.dart';
import 'package:smoke_cess_app/widgets/timepicker.dart';

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

  @override
  State<SleepForm> createState() => _SleepFormState();
}

class _SleepFormState extends State<SleepForm> {
  final GlobalKey<FormState> _sleepFormKey = GlobalKey<FormState>();
  MySlider slider = const MySlider();
  String _textInput = "";
  TimePicker sleepTimePicker = TimePicker(
    const TimeOfDay(hour: 22, minute: 00),
  );
  TimePicker wakeUpTimePicker = TimePicker(
    const TimeOfDay(hour: 8, minute: 00),
  );

  void submitForm() {
    if (_sleepFormKey.currentState!.validate()) {
      _sleepFormKey.currentState?.save(); //call every onSave Method
      Sleep sleep = Sleep(
          slider.getSliderValue().toInt(),
          _textInput,
          DateTime.now(),
          sleepTimePicker.getCurrentTime,
          wakeUpTimePicker.getCurrentTime);
      DatabaseService.instance.addSleep(sleep);
      _sleepFormKey.currentState?.reset();
    }
  }

  void onFormFieldSave(String? newValue) => _textInput = newValue!;

  @override
  Widget build(BuildContext context) {
    return Form(
      key: _sleepFormKey,
      child: Stack(
        children: [
          SingleChildScrollView(
            child: Column(
              mainAxisAlignment: MainAxisAlignment.center,
              crossAxisAlignment: CrossAxisAlignment.stretch,
              children: [
                ElevatedCard(
                  title: 'Einschlafzeit',
                  child: sleepTimePicker,
                ),
                const SizedBox(height: 16),
                ElevatedCard(
                  title: 'Aufwachzeit',
                  child: wakeUpTimePicker,
                ),
                const SizedBox(height: 16),
                ElevatedCard(
                  title: 'Schlafbewertung',
                  child: slider,
                ),
                const SizedBox(height: 16),
                ElevatedCard(
                  title: 'Schlafbeschreibung',
                  child: MyTextFormField(
                      'Beschreibe deinen Schlaf', onFormFieldSave),
                ),
                const SizedBox(
                  height: 80,
                ),
              ],
            ),
          ),
          Positioned(
            bottom: 0,
            right: 0,
            child: SizedBox(
              width: 140,
              height: 80,
              child: SubmitFormButton(submitForm),
            ),
          ),
        ],
      ),
    );
  }
}