Mobile_Health/fast_med_app/lib/ui/pages/add_event.dart

import 'package:fast_med_flutter/model/event.dart';
import 'package:flutter/material.dart';
import 'package:fast_med_flutter/res/event_firestore_service.dart';
import 'package:http/http.dart' as http;
import 'dart:async';

class AddEventPage extends StatefulWidget {
  final EventModel note;

  const AddEventPage({Key key, this.note}) : super(key: key);

  @override
  _AddEventPageState createState() => _AddEventPageState();
}

//Controles de cada Evento que usaremos en todos los files

class _AddEventPageState extends State<AddEventPage> {
  TextStyle style = TextStyle(fontFamily: 'Montserrat', fontSize: 20.0);
  TextEditingController _title;
  TextEditingController _description;
  TextEditingController _number;
  TextEditingController _name;
  TextEditingController _reason;


  DateTime _eventDate;
  DateTime _eventTime;
  DateTime selectedDate = DateTime.now();
  List data;
  List holidays;
  final _formKey = GlobalKey<FormState>();
  final _key = GlobalKey<ScaffoldState>();
  bool processing;

  @override
  void initState() {
    super.initState();
    _title = TextEditingController(text: widget.note != null ? widget.note.title : "");
    _description = TextEditingController(text:  widget.note != null ? widget.note.description : "");
    _name = TextEditingController(text:  widget.note != null ? widget.note.name : "");
    _number = TextEditingController(text:  widget.note != null ? widget.note.number : "");
    _reason = TextEditingController(text:  widget.note != null ? widget.note.reason : "");
    _eventDate = DateTime.now();
    _eventTime = DateTime.now();
    processing = false;
  }

// Definimos el Formulario con cada parametro para crear la cita

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.note != null ? "Edit Note" : "Crear Su Cita"),
      ),
      key: _key,
      body: Form(
        key: _formKey,
        child: Container(
          alignment: Alignment.center,
          child: ListView(
            children: <Widget>[

              // Area donde paciente anota su nombre. Si esta vacio no lo acepta.

              Padding(
                padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 8.0),
                child: TextFormField(
                  controller: _name,
                  validator: (value) =>
                      (value.isEmpty) ? "Favor Anotar Nombre del Paciente" : null,
                  style: style,
                  decoration: InputDecoration(
                      labelText: "Nombre completo del paciente",
                      filled: true,
                      fillColor: Colors.white,
                      border: OutlineInputBorder(borderRadius: BorderRadius.circular(10))),
                ),
              ),

              //Area donde el paciente debe anotar su numero de telefono. Si esta vacio no lo acepta.

              Padding(
                padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 8.0),
                child: TextFormField(
                  controller: _number,
                  validator: (value) =>
                  (value.isEmpty) ? "Favor Anotar Numero de Telefono" : null,
                  style: style,
                  decoration: InputDecoration(
                      labelText: "Numero de Telefono",
                      border: OutlineInputBorder(borderRadius: BorderRadius.circular(10))),
                ),
              ),

              //Area donde el paciente explica la razon de su cita medica. Si esta vacio no lo acepta

              Padding(
                padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 8.0),
                child: TextFormField(
                  controller: _reason,
                  minLines: 3,
                  maxLines: 5,
                  validator: (value) =>
                      (value.isEmpty) ? "Favor Explicar Razon Para La Cita" : null,
                  style: style,
                  decoration: InputDecoration(
                      labelText: "Razones para su cita",
                      border: OutlineInputBorder(borderRadius: BorderRadius.circular(10))),
                ),
              ),
              const SizedBox(height: 10.0),

              //Area donde el paciente puede cambiar la fecha para la cita

              ListTile(
                title: Text("Date (YYYY-MM-DD)"),
                subtitle: Text("${_eventDate.year} - ${_eventDate.month} - ${_eventDate.day}"),
                onTap: ()async{
                  DateTime picked = await showDatePicker(context: context, initialDate: _eventDate, firstDate: DateTime(_eventDate.year-5), lastDate: DateTime(_eventDate.year+5));
                  if(picked != null) {
                    setState(() {
                      _eventDate = picked;
                    });
                  }
                },
              ),

              //Area donde el paciente puede elegir y cambiar la hora para la cita

              ListTile(
                title: Text("Time (HH: mm)"),
                subtitle: Text("${_eventDate.hour} - ${_eventDate.minute} - ${_eventDate.second}"),
                onTap: ()async{
                 final selectedTime = await _selectTime(context);
                 if (selectedTime == null) return;
                  print(selectedTime);

                setState(() {
                this.selectedDate = DateTime(
                selectedTime.hour,
                selectedTime.minute,
                );
                    });
                  }
                  ),
              SizedBox(height: 10.0),

              //Se define el envio de los parametros al usar el boton de Crear la Cita

              processing
                  ? Center(child: CircularProgressIndicator())
                  : Padding(
                padding: const EdgeInsets.symmetric(horizontal: 16.0),
                child: Material(
                  elevation: 5.0,
                  borderRadius: BorderRadius.circular(30.0),
                  color: Theme.of(context).primaryColor,
                  child: MaterialButton(
                    onPressed: () async {
                      if (_formKey.currentState.validate()) {
                        setState(() {
                          processing = true;
                        });
                        if(widget.note != null) {
                          await eventDBS.updateData(widget.note.id,{


                          "title": _title.text,
                          "number": _number.text,
                          "reason": _reason.text,
                          "event_date": widget.note.eventDate,
                          "time": widget.note.eventTime,
                          });
                        }else{
                          await eventDBS.createItem(EventModel(
                              title: _title.text,
                              description: _description.text,
                              name: _name.text,
                              number: _number.text,
                              reason: _reason.text,
                              eventDate: _eventDate

                          ));
                        }
                        Navigator.pop(context);
                        setState(() {
                          processing = false;
                        });
                      }
                    },
                    child: Text(
                      "Crear Su Cita Ahora",
                      style: style.copyWith(
                          color: Colors.white,
                          fontWeight: FontWeight.bold),
                    ),
                  ),
                ),
              ),
            ],
          ),
        ),
      ),
    );
  }


  @override
  void dispose() {
    _title.dispose();
    _description.dispose();
    _name.dispose();
    _number.dispose();
    _reason.dispose();
    super.dispose();
  }
}

// Funcionalidades para poder seleccionar horarios

Future<TimeOfDay> _selectTime(BuildContext context) {
  final now = DateTime.now();

  return showTimePicker(
    context: context,
    initialTime: TimeOfDay(hour: now.hour, minute: now.minute),
  );
}