import 'package:flutter/cupertino.dart';
import 'package:imessage/channel_preview.dart';
import 'package:imessage/message_page.dart';
import 'package:animations/animations.dart';
import 'package:stream_chat_flutter/stream_chat_flutter.dart'
    show Channel, StreamChannel;

class ChannelListView extends StatelessWidget {
  const ChannelListView({Key key, @required this.channels}) : super(key: key);
  final List<Channel> channels;
  @override
  Widget build(BuildContext context) {
    channels.removeWhere((channel) => channel.lastMessageAt == null);
    return SliverList(
      delegate: SliverChildBuilderDelegate(
        (BuildContext context, int index) {
          //TODO: separators
          return Column(
            children: [
              ChannelPreview(
                  channel: channels[index],
                  onTap: () {
                    Navigator.push(
                        context,
                        PageRouteBuilder(
                          pageBuilder: (_, __, ___) => StreamChannel(
                            channel: channels[index],
                            child: MessagePage(),
                          ),
                          transitionsBuilder: (
                            _,
                            animation,
                            secondaryAnimation,
                            child,
                          ) =>
                              SharedAxisTransition(
                            child: child,
                            animation: animation,
                            secondaryAnimation: secondaryAnimation,
                            transitionType: SharedAxisTransitionType.horizontal,
                          ),
                        ));
                  })
            ],
          );
        },
        childCount: channels.length,
      ),
    );
  }
}