import 'package:flutter/material.dart';
import '../models/Blogs.dart';
import '../models/Blog.dart';
import '../models/apiWorker.dart';

class BlogsPage extends StatefulWidget {
  BlogsPage({Key key}) : super(key: key);

  _BlogsPageState createState() => _BlogsPageState();
}

class _BlogsPageState extends State<BlogsPage>
{
  apiWorker _api = apiWorker();

  Future<Blogs> _loadBlogs() async {

    return await _api.getBlogs();
  }

  Widget build (BuildContext context) {
    return Container(
        alignment: Alignment.topCenter,
        child: FutureBuilder<Blogs>(
            future: _loadBlogs(),
            builder: (BuildContext context, AsyncSnapshot snapshot) {
              switch (snapshot.connectionState) {
                case ConnectionState.none:
                case ConnectionState.waiting:
                  return Center(child: CircularProgressIndicator());
                default:
                  if (snapshot.hasError)
                    return new Text('Ошибка: ${snapshot.error}');
                  else
                    return createListView(context, snapshot);
              }
            }
        ),
    );
  }

    Widget createListView(BuildContext context, AsyncSnapshot snapshot) {

              List<Blog> values = snapshot.data.blogs;
              return new ListView.builder(
              itemCount: values.length,
              itemBuilder: (BuildContext context, int index) {
                  return Column(
                    children: <Widget>[
                      ListTile(
                        title: Text(values[index].name),
                        subtitle: Text("http://${values[index].uri}.tumblr.com",
                          style: TextStyle(
                            fontSize: 12,
                          ),
                        ),
                        trailing: IconButton(
                            icon: Icon(Icons.delete),
                            onPressed: () {
                              _deleteBlog(values[index].id, values[index].name);
                            },
                            ),
                      ),
                      Divider(height: 3),
                    ],
                  );

                },
              );
  }

  void _deleteBlog(String id, String name) {
    showDialog(
      context: context,
      barrierDismissible: false,
      builder: (BuildContext context) {
        return AlertDialog(
          title: Text("Вы хотите удалить блог?"),
          content: Text("Вы точно хотите удалить \"${name}\"?"),
          actions: <Widget>[
            FlatButton(
              child: Text("Удалить"),
              onPressed: () {
                setState(() {

                });
              },
            ),
            FlatButton(
              child: Text("Отмена"),
              onPressed: () {
                setState(() {
                  _deleteApi(id);
                });

                Navigator.pop(context);
              },
            )
          ],
        );
      }

    );
  }

  void _deleteApi(id) async {
    await _api.deleteBlog(id);
  }
}