import 'dart:async';

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:jiffy/jiffy.dart';

import '../../../../api/marianumcloud/talk/actions/talk_actions.dart';
import '../../../../api/marianumcloud/talk/chat/richObjectStringProcessor.dart';
import '../../../../api/marianumcloud/talk/room/getRoomResponse.dart';
import '../../../../api/marianumcloud/talk/setReadMarker/setReadMarker.dart';
import '../../../../api/marianumcloud/talk/setReadMarker/setReadMarkerParams.dart';
import '../../../../model/account_data.dart';
import '../../../../state/app/modules/chat/bloc/chat_bloc.dart';
import '../../../../state/app/modules/chatList/bloc/chat_list_bloc.dart';
import '../../../../widget/async_action_button.dart';
import '../../../../widget/confirm_dialog.dart';
import '../../../../widget/debug/debug_tile.dart';
import '../../../../widget/user_avatar.dart';
import '../chat_view.dart';
import '../talk_navigator.dart';

class ChatTile extends StatefulWidget {
  final GetRoomResponseObject data;
  final bool disableContextActions;
  final bool hasDraft;

  const ChatTile({super.key, required this.data, this.disableContextActions = false, this.hasDraft = false});

  @override
  State<ChatTile> createState() => _ChatTileState();
}

class _ChatTileState extends State<ChatTile> {
  String? selfUsername;

  @override
  void initState() {
    super.initState();
    AccountData().waitForPopulation().then((_) {
      if (!mounted) return;
      setState(() => selfUsername = AccountData().isPopulated() ? AccountData().getUsername() : null);
    });
  }

  void _refreshList() => context.read<ChatListBloc>().refresh();

  Future<void> _setCurrentAsRead() async {
    await SetReadMarker(
      widget.data.token,
      true,
      setReadMarkerParams: SetReadMarkerParams(lastReadMessage: widget.data.lastMessage.id),
    ).run();
    if (!mounted) return;
    _refreshList();
  }

  @override
  Widget build(BuildContext context) {
    final chatBloc = context.watch<ChatBloc>();
    final isGroup = widget.data.type != GetRoomResponseObjectConversationType.oneToOne;
    final circleAvatar = UserAvatar(id: isGroup ? widget.data.token : widget.data.name, isGroup: isGroup);

    return ListTile(
      style: ListTileStyle.list,
      tileColor: chatBloc.state.data?.currentToken == widget.data.token && TalkNavigator.isSecondaryVisible(context)
          ? Theme.of(context).primaryColor.withAlpha(100)
          : null,
      leading: Stack(
        children: [
          circleAvatar,
          Visibility(
            visible: widget.data.isFavorite,
            child: Positioned(
              right: 0,
              bottom: 0,
              child: Container(
                padding: const EdgeInsets.all(1),
                decoration: BoxDecoration(
                  color: Theme.of(context).primaryColor.withAlpha(200),
                  borderRadius: BorderRadius.circular(90.0),
                ),
                child: const Icon(Icons.star, color: Colors.amberAccent, size: 15),
              ),
            ),
          )
        ],
      ),
      title: Row(
        mainAxisSize: MainAxisSize.min,
        children: [
          Flexible(child: Text(widget.data.displayName, overflow: TextOverflow.ellipsis)),
          if (widget.hasDraft) ...[
            const SizedBox(width: 5),
            const Icon(Icons.edit_outlined, size: 15),
          ],
        ],
      ),
      subtitle: Text(
        '${Jiffy.parseFromMillisecondsSinceEpoch(widget.data.lastMessage.timestamp * 1000).fromNow()}: '
        '${RichObjectStringProcessor.parseToString(widget.data.lastMessage.message.replaceAll("\n", " "), widget.data.lastMessage.messageParameters)}',
        overflow: TextOverflow.ellipsis,
      ),
      trailing: widget.data.unreadMessages <= 0
          ? null
          : Container(
              padding: const EdgeInsets.all(1),
              decoration: BoxDecoration(
                color: Theme.of(context).primaryColor,
                borderRadius: BorderRadius.circular(30),
              ),
              constraints: const BoxConstraints(minWidth: 20, minHeight: 20),
              child: Text(
                '${widget.data.unreadMessages}',
                style: const TextStyle(color: Colors.white, fontSize: 15),
                textAlign: TextAlign.center,
              ),
            ),
      onTap: () {
        if (selfUsername == null) return;
        unawaited(_setCurrentAsRead());
        final view = ChatView(room: widget.data, selfId: selfUsername!, avatar: circleAvatar);
        TalkNavigator.pushSplitView(context, view, overrideToSingleSubScreen: true);
        context.read<ChatBloc>().setToken(widget.data.token);
      },
      onLongPress: () {
        if (widget.disableContextActions) return;
        showDialog(context: context, builder: (dialogCtx) => SimpleDialog(
          children: [
            if (widget.data.unreadMessages > 0)
              AsyncListTile(
                leading: const Icon(Icons.mark_chat_read_outlined),
                title: const Text('Als gelesen markieren'),
                onPressed: _setCurrentAsRead,
              )
            else
              AsyncListTile(
                leading: const Icon(Icons.mark_chat_unread_outlined),
                title: const Text('Als ungelesen markieren'),
                onPressed: () async {
                  await SetReadMarker(widget.data.token, false).run();
                  if (mounted) _refreshList();
                },
              ),
            if (widget.data.isFavorite)
              AsyncListTile(
                leading: const Icon(Icons.stars_outlined),
                title: const Text('Von Favoriten entfernen'),
                onPressed: () async {
                  await SetFavorite(widget.data.token, false).run();
                  if (mounted) _refreshList();
                },
              )
            else
              AsyncListTile(
                leading: const Icon(Icons.star_outline),
                title: const Text('Zu Favoriten hinzufügen'),
                onPressed: () async {
                  await SetFavorite(widget.data.token, true).run();
                  if (mounted) _refreshList();
                },
              ),
            ListTile(
              leading: const Icon(Icons.delete_outline),
              title: const Text('Konversation verlassen'),
              onTap: () {
                Navigator.of(dialogCtx).pop();
                ConfirmDialog(
                  title: 'Chat verlassen',
                  content: 'Du benötigst ggf. eine Einladung um erneut beizutreten.',
                  confirmButton: 'Verlassen',
                  onConfirmAsync: () async {
                    await LeaveRoom(widget.data.token).run();
                    if (mounted) _refreshList();
                  },
                ).asDialog(context);
              },
            ),
            DebugTile(dialogCtx).jsonData(widget.data.toJson()),
          ],
        ));
      },
    );
  }
}