import 'package:flutter/material.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:provider/provider.dart';
import 'package:f0ckapp/screens/DetailView.dart';
import 'package:f0ckapp/services/Api.dart';
import 'package:f0ckapp/providers/MediaProvider.dart';

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

  @override
  State createState() => _MediaGridState();
}

class _MediaGridState extends State<MediaGrid> {
  final ScrollController _scrollController = ScrollController();

  @override
  void initState() {
    super.initState();

    final provider = Provider.of<MediaProvider>(context, listen: false);

    Future.microtask(() {
      provider.loadMedia();
    });

    _scrollController.addListener(() {
      if (_scrollController.position.pixels >=
          _scrollController.position.maxScrollExtent - 100) {
        provider.loadMedia();
      }
    });
  }

  @override
  Widget build(BuildContext context) {
    final provider = Provider.of<MediaProvider>(context);
    final GlobalKey<ScaffoldState> scaffoldKey = GlobalKey<ScaffoldState>();

    return Scaffold(
      key: scaffoldKey,
      appBar: AppBar(
        //centerTitle: true,
        title: Text('f0ck v1.0.26+26'),
        actions: [
          DropdownButton<String>(
            // mode
            value: provider.modes[provider.mode],
            isDense: true,
            icon: SizedBox.shrink(),
            items: provider.modes.map((String value) {
              return DropdownMenuItem<String>(value: value, child: Text(value));
            }).toList(),
            onChanged: (String? newValue) {
              if (newValue != null) {
                provider.setMode(provider.modes.indexOf(newValue));
              }
            },
          ),
          IconButton(
            icon: const Icon(Icons.menu),
            onPressed: () {
              scaffoldKey.currentState?.openEndDrawer();
            },
          ),
        ],
      ),
      endDrawer: Drawer(
        child: ListView(
          padding: EdgeInsets.zero,
          children: [
            DrawerHeader(
              padding: EdgeInsets.all(0),
              child: Image.asset('assets/images/menu.webp', fit: BoxFit.cover),
            ),
            ListTile(
              title: Text(
                'All',
                style: TextStyle(
                  fontWeight: provider.type == 'alles'
                      ? FontWeight.bold
                      : FontWeight.normal,
                  color: provider.type == 'alles' ? Colors.blue : Colors.white,
                ),
              ),
              onTap: () {
                provider.setType('all');
              },
            ),
            ListTile(
              title: Text(
                'Images',
                style: TextStyle(
                  fontWeight: provider.type == 'image'
                      ? FontWeight.bold
                      : FontWeight.normal,
                  color: provider.type == 'image' ? Colors.blue : Colors.white,
                ),
              ),
              onTap: () {
                provider.setType('image');
              },
            ),
            ListTile(
              title: Text(
                'Videos',
                style: TextStyle(
                  fontWeight: provider.type == 'video'
                      ? FontWeight.bold
                      : FontWeight.normal,
                  color: provider.type == 'video' ? Colors.blue : Colors.white,
                ),
              ),
              onTap: () {
                provider.setType('video');
              },
            ),
            ListTile(
              title: Text(
                'Audio',
                style: TextStyle(
                  fontWeight: provider.type == 'audio'
                      ? FontWeight.bold
                      : FontWeight.normal,
                  color: provider.type == 'audio' ? Colors.blue : Colors.white,
                ),
              ),
              onTap: () {
                provider.setType('audio');
              },
            ),
          ],
        ),
      ),
      persistentFooterButtons: provider.tag != null
          ? [
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text('tag: '),
                  InputChip(
                    label: Text(provider.tag!),
                    backgroundColor: const Color(0xFF090909),
                    labelStyle: const TextStyle(color: Colors.white),
                    onDeleted: () {
                      provider.setTag(null);
                    },
                  ),
                ],
              ),
            ]
          : null,
      body: RefreshIndicator(
        onRefresh: () async {
          await provider.loadMedia(reload: true);
        },
        child: Consumer<MediaProvider>(
          builder: (context, mediaProvider, child) {
            return GridView.builder(
              controller: _scrollController,
              gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
                crossAxisCount: mediaProvider.crossAxisCount == 0
                    ? (MediaQuery.of(context).size.width / 110)
                          .clamp(3, 5)
                          .toInt()
                    : mediaProvider.crossAxisCount,
                crossAxisSpacing: 5.0,
                mainAxisSpacing: 5.0,
              ),
              itemCount:
                  provider.mediaItems.length + (provider.isLoading ? 1 : 0),
              itemBuilder: (context, index) {
                if (index >= provider.mediaItems.length) {
                  return const Center(child: CircularProgressIndicator());
                }
                final item = provider.mediaItems[index];

                return InkWell(
                  onTap: () => Navigator.push(
                    context,
                    MaterialPageRoute(
                      builder: (context) => DetailView(initialItemId: item.id),
                    ),
                  ),
                  child: Stack(
                    fit: StackFit.expand,
                    children: <Widget>[
                      CachedNetworkImage(
                        imageUrl: item.thumbnailUrl,
                        fit: BoxFit.cover,
                        placeholder: (context, url) => SizedBox.shrink(),
                        errorWidget: (context, url, error) => Icon(Icons.error),
                      ),
                      Align(
                        alignment: FractionalOffset.bottomRight,
                        child: Icon(
                          Icons.square,
                          color: switch (item.mode) {
                            1 => Colors.green,
                            2 => Colors.red,
                            _ => Colors.yellow,
                          },
                          size: 15.0,
                        ),
                      ),
                    ],
                  ),
                );
              },
            );
          },
        ),
      ),
    );
  }
}