import 'package:flutter/material.dart';
import 'Models/Produto.dart';

void main() => runApp(Mercado());

class Mercado extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: "Mercado",
      home: MyApp(),
    );
  }
}

class MyApp extends StatelessWidget {
  final TextEditingController _controladorNome = TextEditingController();
  final TextEditingController _controladorQuantidade = TextEditingController();
  final TextEditingController _controladorValor = TextEditingController();
  final TextEditingController _controladorData = TextEditingController();

  Future<void> _selectDate(context) async {
    DateTime selectedDate = await showDatePicker(
        context: context,
        initialDate: DateTime.now(),
        firstDate: DateTime(2017),
        lastDate: DateTime(2021));
    String resultado =
        "${selectedDate.day}/${selectedDate.month}/${selectedDate.year}";
    _controladorData.text = resultado;
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
        home: DefaultTabController(
            length: 2,
            child: Scaffold(
                appBar: AppBar(
                    title: Text('Produtos'),
                    bottom: TabBar(tabs: [
                      Tab(icon: Icon(Icons.add)),
                      Tab(icon: Icon(Icons.view_agenda))
                    ])),
                body: TabBarView(
                  children: [
                    Column(
                      children: <Widget>[
                        Padding(
                            padding: const EdgeInsets.all(16.0),
                            child: TextField(
                                controller: _controladorNome,
                                decoration:
                                    InputDecoration(labelText: 'Nome'))),
                        Padding(
                            padding: const EdgeInsets.all(16.0),
                            child: TextField(
                              controller: _controladorQuantidade,
                              decoration:
                                  InputDecoration(labelText: 'Quantidade'),
                              keyboardType: TextInputType.number,
                            )),
                        Padding(
                            padding: const EdgeInsets.all(16.0),
                            child: TextField(
                              controller: _controladorValor,
                              decoration: InputDecoration(labelText: 'Valor'),
                              keyboardType: TextInputType.number,
                            )),
                        Padding(
                          padding: const EdgeInsets.all(16.0),
                          child: Row(
                            children: [
                              Expanded(
                                  child: TextField(
                                controller: _controladorData,
                                enabled: false,
                                decoration: InputDecoration(labelText: 'Data'),
                              )),
                              Expanded(
                                child: RaisedButton(
                                    child: Text('Selecionar Data'),
                                    onPressed: () {
                                      _selectDate(context);
                                    }),
                              )
                            ],
                          ),
                        ),
                        Padding(
                            padding: const EdgeInsets.only(top: 16.0),
                            child: RaisedButton(
                              child: Text('Cadastrar'),
                              onPressed: () {
                                final String nome = _controladorNome.text;
                                final int quantidade =
                                    int.tryParse(_controladorQuantidade.text);
                                final double valor =
                                    double.tryParse(_controladorValor.text);
                                final Produto produtoNovo = Produto(nome,
                                    quantidade, valor, _controladorData.text);
                                print(produtoNovo);
                              },
                            )),
                      ],
                    ),
                    SingleChildScrollView(
                        scrollDirection: Axis.vertical,
                        child: Center(
                          child: Padding(
                            padding: const EdgeInsets.only(top: 30.0),
                            child: DataTable(
                                //sortAscending: sort,
                                //sortColumnIndex: 0,
                                columns: [
                                  DataColumn(
                                    label: Text("Nome",
                                        style: TextStyle(fontSize: 16)),
                                    numeric: false,
                                  ),
                                  DataColumn(
                                    label: Text("Qtd",
                                        style: TextStyle(fontSize: 16)),
                                    numeric: true,
                                  ),
                                  DataColumn(
                                    label: Text("Valor",
                                        style: TextStyle(fontSize: 16)),
                                    numeric: true,
                                  ),
                                  DataColumn(
                                    label: Text("Data",
                                        style: TextStyle(fontSize: 16)),
                                    numeric: false,
                                  ),
                                ], rows: [
                              DataRow(cells: [
                                DataCell(Text("Arroz")),
                                DataCell(Text("30")),
                                DataCell(Text("15.75")),
                                DataCell(Text("20/05/2020")),
                              ]),
                            ]),
                          ),
                        ))
                  ],
                ))));
  }
}