import 'package:cdb_ui/api.dart';
import 'package:cdb_ui/itemview.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({super.key});

  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'CDB',
      theme: ThemeData(
        colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
        useMaterial3: true,
      ),
      home: const MyHomePage(),
    );
  }
}

// todo : homepage with tabs
// tab 1: home stats
// tab 2: item list
// tab 3: locations

class StatsPage extends StatelessWidget {
  const StatsPage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold();
  }
}

class LocationsPage extends StatelessWidget {
  const LocationsPage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold();
  }
}

class ItemsPage extends StatelessWidget {
  const ItemsPage({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text("Items"),
      ),
      body: FutureBuilder(
          future: API().getItems(),
          builder: (context, snapshot) {
            if (!snapshot.hasData) {
              return const CircularProgressIndicator();
            }

            var items = snapshot.data!;

            return Expanded(
                child: GridView.count(
              crossAxisCount: 2,
              children: items.map((x) {
                return ItemCard(x);
              }).toList(),
            ));
          }),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({super.key});

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  int pageIndex = 0;

  List<Widget> pages = [StatsPage(), ItemsPage(), LocationsPage()];

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      bottomNavigationBar: BottomNavigationBar(
        items: const [
          BottomNavigationBarItem(icon: Icon(Icons.home), label: "Home"),
          BottomNavigationBarItem(
              icon: Icon(Icons.data_object), label: "Items"),
          BottomNavigationBarItem(
              icon: Icon(Icons.location_city), label: "Locations"),
        ],
        currentIndex: pageIndex,
        onTap: (value) {
          setState(() {
            pageIndex = value;
          });
        },
      ),
      body: pages[pageIndex],
    );
  }
}

class ItemCard extends StatelessWidget {
  final String item;

  const ItemCard(this.item, {super.key});

  @override
  Widget build(BuildContext context) {
    return InkWell(
      onTap: () async {
        var itemInfo = await API().getItem(item);

        Navigator.push(context,
            MaterialPageRoute(builder: (context) => ItemView(item: itemInfo)));
      },
      child: Row(children: [
        Image.network(
          API().getImageURL(item),
          width: 128,
          height: 128,
        ),
        Text(item)
      ]),
    );
  }
}