import 'package:flutter/material.dart';
import 'package:f0ckapp/api/fetchdata.dart';
import 'package:f0ckapp/model/item.dart';
import 'package:f0ckapp/view/item.dart';

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

  @override
  // ignore: library_private_types_in_public_api
  _HomeState createState() => _HomeState();
}

class _HomeState extends State<Home> {
  late Future<List<Item>> f0cks;

  @override
  void initState() {
    super.initState();
    f0cks = fetchDataFromApi();
  }

  Future loadf0cks() {
    setState(() {
      f0cks = fetchDataFromApi();
    });
    return f0cks;
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        automaticallyImplyLeading: false,
        backgroundColor: const Color.fromARGB(255, 43, 43, 43),
        title: const Text('f0cks'),
        centerTitle: true,
      ),
      body: FutureBuilder<List<Item>>(
        future: f0cks,
        builder: (context, snapshot) {
          if(!snapshot.hasData) {
            return Text("${snapshot.error}");
          }
          return RefreshIndicator(
            onRefresh: () {
              return loadf0cks();
            },
            child: CustomScrollView(
              shrinkWrap: true,
              slivers: <Widget>[
                SliverGrid(
                  gridDelegate: const SliverGridDelegateWithMaxCrossAxisExtent(
                    maxCrossAxisExtent: 130.0,
                    mainAxisSpacing: 2,
                    crossAxisSpacing: 2,
                  ),
                  delegate: SliverChildBuilderDelegate(
                    (context, index) {
                      Color mode;
                      switch(snapshot.data?[index].tagId) {
                        case 1: mode = Colors.green; break;
                        case 2: mode = Colors.red; break;
                        default: mode = Colors.yellow; break;
                      }
                      return GestureDetector(
                        onTap: () {
                          Navigator.push(
                            context,
                            MaterialPageRoute(
                              builder: (context) => ItemPage(id: snapshot.data![index].id),
                            ),
                          );
                        },
                        child: Stack(
                          children: <Widget>[
                            Image.network("https://f0ck.dev/t/${snapshot.data?[index].id}.webp"),
                            SizedBox(
                              child: Align(
                                alignment: FractionalOffset.bottomRight,
                                child: Padding(
                                  padding: const EdgeInsets.only(bottom: 0, right: 0),
                                  child: Icon(
                                    Icons.square,
                                    color: mode,
                                    size: 15.0
                                  ),
                                ),
                              ),
                            )
                          ]
                        )
                      );
                    },
                    childCount: snapshot.data?.length
                  )
                ),
              ]
            )
          );
        }
      )
    );
  }
}