Solian/lib/screens/contact.dart

import 'package:flutter/material.dart';
import 'package:flutter_animate/flutter_animate.dart';
import 'package:font_awesome_flutter/font_awesome_flutter.dart';
import 'package:get/get.dart';
import 'package:solian/models/channel.dart';
import 'package:solian/providers/auth.dart';
import 'package:solian/providers/content/channel.dart';
import 'package:solian/router.dart';
import 'package:solian/screens/account/notification.dart';
import 'package:solian/theme.dart';

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

  @override
  State<ContactScreen> createState() => _ContactScreenState();
}

class _ContactScreenState extends State<ContactScreen> {
  bool _isBusy = true;

  final List<Channel> _channels = List.empty(growable: true);

  getChannels() async {
    setState(() => _isBusy = true);

    final ChannelProvider provider = Get.find();
    final resp = await provider.listAvailableChannel();

    setState(() {
      _channels.clear();
      _channels.addAll(
        resp.body.map((e) => Channel.fromJson(e)).toList().cast<Channel>(),
      );
    });

    setState(() => _isBusy = false);
  }

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

    getChannels();
  }

  @override
  Widget build(BuildContext context) {
    final AuthProvider auth = Get.find();

    // TODO Un signed in tip

    return Material(
      color: Theme.of(context).colorScheme.surface,
      child: SafeArea(
        child: NestedScrollView(
          headerSliverBuilder: (context, innerBoxIsScrolled) {
            return [
              SliverOverlapAbsorber(
                handle:
                    NestedScrollView.sliverOverlapAbsorberHandleFor(context),
                sliver: SliverAppBar(
                  title: Text('contact'.tr),
                  centerTitle: false,
                  titleSpacing: SolianTheme.isLargeScreen(context) ? null : 24,
                  forceElevated: innerBoxIsScrolled,
                  actions: [
                    const NotificationButton(),
                    IconButton(
                      icon: const Icon(Icons.add_circle),
                      onPressed: () {
                        AppRouter.instance.pushNamed('channelOrganizing').then(
                          (value) {
                            if (value != null) {
                              getChannels();
                            }
                          },
                        );
                      },
                    ),
                    SizedBox(
                      width: SolianTheme.isLargeScreen(context) ? 8 : 16,
                    ),
                  ],
                ),
              ),
            ];
          },
          body: MediaQuery.removePadding(
            removeTop: true,
            context: context,
            child: Column(
              children: [
                if (_isBusy) const LinearProgressIndicator().animate().scaleX(),
                Expanded(
                  child: RefreshIndicator(
                    onRefresh: () => getChannels(),
                    child: ListView.builder(
                      itemCount: _channels.length,
                      itemBuilder: (context, index) {
                        final element = _channels[index];
                        return ListTile(
                          leading: CircleAvatar(
                            backgroundColor: Colors.indigo,
                            child: FaIcon(
                              element.icon,
                              color: Colors.white,
                              size: 16,
                            ),
                          ),
                          contentPadding:
                              const EdgeInsets.symmetric(horizontal: 24),
                          title: Text(element.name),
                          subtitle: Text(element.description),
                          onTap: () {
                            AppRouter.instance.pushNamed(
                              'channelChat',
                              pathParameters: {'alias': element.alias},
                              queryParameters: {
                                if (element.realmId != null)
                                  'realm': element.realm!.alias,
                              },
                            );
                          },
                        );
                      },
                    ),
                  ),
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}