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import 'package:bytebank_aula2/database/dao/contact_dao.dart';
import 'package:bytebank_aula2/models/contact.dart';
import 'package:bytebank_aula2/screens/contact_form.dart';
import 'package:flutter/material.dart';

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

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

class _ContactsListState extends State<ContactsList> {
  final ContactDao _dao = ContactDao();

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Contacts"),
      ),
      body: FutureBuilder<List<Contact>>(
        initialData: const [],
        future: _dao.findAll(),
        builder: (context, snapshot) {
          switch (snapshot.connectionState) {
            case ConnectionState.none:
              // TODO: Handle this case.
              break;
            case ConnectionState.waiting:
              return Center(
                  child: Column(
                mainAxisAlignment: MainAxisAlignment.center,
                crossAxisAlignment: CrossAxisAlignment.center,
                children: const <Widget>[
                  CircularProgressIndicator(),
                  Text('Loading')
                ],
              ));
            case ConnectionState.active:
              // TODO: Handle this case.
              break;
            case ConnectionState.done:
              final List<Contact>? contacts = snapshot.data;
              return ListView.builder(
                itemBuilder: (context, index) {
                  final Contact contact = contacts![index];
                  return _ContactItem(contact);
                },
                itemCount: contacts!.length,
              );
          }
          return const Text('Unknown error');
        },
      ),
      floatingActionButton: FloatingActionButton(
          onPressed: () async {
        await Navigator.of(context)
            .push(MaterialPageRoute(builder: (context) => const ContactForm()));
        // Force update (rebuild widget)
        setState(() {});
      },
        child: const Icon(
        Icons.add,),
    )
    );
  }


}

class _ContactItem extends StatelessWidget {
  final Contact contact;

  const _ContactItem(this.contact);

  @override
  Widget build(BuildContext context) {
    return Card(
        child: ListTile(
      title: Text(
        contact.name,
        style: const TextStyle(
          fontSize: 24,
        ),
      ),
      subtitle: Text(
        contact.accountNumber.toString(),
        style: const TextStyle(
          fontSize: 16.0,
        ),
      ),
    ));
  }
}