import 'package:flutter/material.dart';

import 'package:adaptive_dialog/adaptive_dialog.dart';
import 'package:flutter_gen/gen_l10n/l10n.dart';
import 'package:future_loading_dialog/future_loading_dialog.dart';
import 'package:matrix/matrix.dart';
import 'package:pedantic/pedantic.dart';
import 'package:vrouter/vrouter.dart';

import 'package:fluffychat/config/app_config.dart';
import 'package:fluffychat/utils/matrix_sdk_extensions.dart/event_extension.dart';
import 'package:fluffychat/utils/matrix_sdk_extensions.dart/matrix_locals.dart';
import 'package:fluffychat/utils/room_status_extension.dart';
import '../../pages/send_file_dialog.dart';
import '../../utils/date_time_extension.dart';
import '../avatar.dart';
import '../matrix.dart';

enum ArchivedRoomAction { delete, rejoin }

class ChatListItem extends StatelessWidget {
  final Room room;
  final bool activeChat;
  final bool selected;
  final Function onForget;
  final Function onTap;
  final Function onLongPress;

  const ChatListItem(
    this.room, {
    this.activeChat = false,
    this.selected = false,
    this.onTap,
    this.onLongPress,
    this.onForget,
    Key key,
  }) : super(key: key);

  dynamic clickAction(BuildContext context) async {
    if (onTap != null) return onTap();
    if (!activeChat) {
      if (room.membership == Membership.invite &&
          (await showFutureLoadingDialog(
                      context: context,
                      future: () async {
                        final joinedFuture = room.client.onSync.stream
                            .where((u) =>
                                u.rooms?.join?.containsKey(room.id) ?? false)
                            .first;
                        await room.join();
                        await joinedFuture;
                      }))
                  .error !=
              null) {
        return;
      }

      if (room.membership == Membership.ban) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text(L10n.of(context).youHaveBeenBannedFromThisChat),
          ),
        );
        return;
      }

      if (room.membership == Membership.leave) {
        final action = await showModalActionSheet<ArchivedRoomAction>(
          context: context,
          title: L10n.of(context).archivedRoom,
          message: L10n.of(context).thisRoomHasBeenArchived,
          actions: [
            SheetAction(
              label: L10n.of(context).rejoin,
              key: ArchivedRoomAction.rejoin,
            ),
            SheetAction(
              label: L10n.of(context).delete,
              key: ArchivedRoomAction.delete,
              isDestructiveAction: true,
            ),
          ],
        );
        if (action != null) {
          switch (action) {
            case ArchivedRoomAction.delete:
              await archiveAction(context);
              break;
            case ArchivedRoomAction.rejoin:
              await showFutureLoadingDialog(
                context: context,
                future: () => room.join(),
              );
              break;
          }
        }
      }

      if (room.membership == Membership.join) {
        if (Matrix.of(context).shareContent != null) {
          if (Matrix.of(context).shareContent['msgtype'] ==
              'chat.fluffy.shared_file') {
            await showDialog(
              context: context,
              useRootNavigator: false,
              builder: (c) => SendFileDialog(
                file: Matrix.of(context).shareContent['file'],
                room: room,
              ),
            );
          } else {
            unawaited(room.sendEvent(Matrix.of(context).shareContent));
          }
          Matrix.of(context).shareContent = null;
        }
        VRouter.of(context).toSegments(['rooms', room.id]);
      }
    }
  }

  Future<void> archiveAction(BuildContext context) async {
    {
      if ([Membership.leave, Membership.ban].contains(room.membership)) {
        final success = await showFutureLoadingDialog(
          context: context,
          future: () => room.forget(),
        );
        if (success.error == null) {
          if (onForget != null) onForget();
        }
        return success;
      }
      final confirmed = await showOkCancelAlertDialog(
        useRootNavigator: false,
        context: context,
        title: L10n.of(context).areYouSure,
        okLabel: L10n.of(context).yes,
        cancelLabel: L10n.of(context).no,
      );
      if (confirmed == OkCancelResult.cancel) return;
      await showFutureLoadingDialog(
          context: context, future: () => room.leave());
      return;
    }
  }

  @override
  Widget build(BuildContext context) {
    final isMuted = room.pushRuleState != PushRuleState.notify;
    final typingText = room.getLocalizedTypingText(context);
    final ownMessage =
        room.lastEvent?.senderId == Matrix.of(context).client.userID;
    final unread = room.isUnread || room.membership == Membership.invite;
    final unreadBubbleSize = unread
        ? room.notificationCount > 0
            ? 20.0
            : 14.0
        : 0.0;
    return ListTile(
      selected: selected || activeChat,
      selectedTileColor: selected
          ? Theme.of(context).primaryColor.withAlpha(100)
          : Theme.of(context).secondaryHeaderColor,
      onLongPress: onLongPress,
      leading: selected
          ? SizedBox(
              width: Avatar.defaultSize,
              height: Avatar.defaultSize,
              child: Material(
                color: Theme.of(context).primaryColor,
                borderRadius: BorderRadius.circular(Avatar.defaultSize),
                child: const Icon(Icons.check, color: Colors.white),
              ),
            )
          : Avatar(room.avatar, room.displayname, onTap: onLongPress),
      title: Row(
        children: <Widget>[
          Expanded(
            child: Text(
              room.getLocalizedDisplayname(MatrixLocals(L10n.of(context))),
              maxLines: 1,
              overflow: TextOverflow.ellipsis,
              softWrap: false,
              style: TextStyle(
                fontWeight: unread ? FontWeight.bold : null,
                color: unread
                    ? Theme.of(context).colorScheme.secondary
                    : Theme.of(context).textTheme.bodyText1.color,
              ),
            ),
          ),
          if (isMuted)
            const Padding(
              padding: EdgeInsets.only(left: 4.0),
              child: Icon(
                Icons.notifications_off_outlined,
                size: 16,
              ),
            ),
          if (room.isFavourite)
            Padding(
              padding: EdgeInsets.only(
                  right: room.notificationCount > 0 ? 4.0 : 0.0),
              child: Icon(
                Icons.push_pin_outlined,
                size: 16,
                color: Theme.of(context).colorScheme.secondary,
              ),
            ),
          Padding(
            padding: const EdgeInsets.only(left: 4.0),
            child: Text(
              room.timeCreated.localizedTimeShort(context),
              style: TextStyle(
                fontSize: 13,
                color: unread
                    ? Theme.of(context).colorScheme.secondary
                    : Theme.of(context).textTheme.bodyText2.color,
              ),
            ),
          ),
        ],
      ),
      subtitle: Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          if (typingText.isEmpty && ownMessage) ...{
            Icon(
              room.lastEvent.statusIcon,
              size: 14,
            ),
            const SizedBox(width: 4),
          },
          AnimatedContainer(
            width: typingText.isEmpty ? 0 : 18,
            clipBehavior: Clip.hardEdge,
            decoration: const BoxDecoration(),
            duration: const Duration(milliseconds: 300),
            curve: Curves.bounceInOut,
            padding: const EdgeInsets.only(right: 4),
            child: Icon(
              Icons.edit_outlined,
              color: Theme.of(context).colorScheme.secondary,
              size: 14,
            ),
          ),
          if (typingText.isEmpty &&
              !ownMessage &&
              !room.isDirectChat &&
              room.lastEvent != null &&
              room.lastEvent.type == EventTypes.Message &&
              {MessageTypes.Text, MessageTypes.Notice}
                  .contains(room.lastEvent.messageType))
            Text(
              '${room.lastEvent.sender.calcDisplayname()}: ',
              style: TextStyle(
                color: Theme.of(context).textTheme.bodyText1.color,
              ),
            ),
          Expanded(
            child: typingText.isNotEmpty
                ? Text(
                    typingText,
                    style: TextStyle(
                      color: Theme.of(context).colorScheme.secondary,
                    ),
                    softWrap: false,
                  )
                : Text(
                    room.membership == Membership.invite
                        ? L10n.of(context).youAreInvitedToThisChat
                        : room.lastEvent?.getLocalizedBody(
                            MatrixLocals(L10n.of(context)),
                            hideReply: true,
                            hideEdit: true,
                            plaintextBody: false,
                          ),
                    softWrap: false,
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                    style: TextStyle(
                      color: unread
                          ? Theme.of(context).colorScheme.secondary
                          : Theme.of(context).textTheme.bodyText2.color,
                      decoration: room.lastEvent?.redacted == true
                          ? TextDecoration.lineThrough
                          : null,
                    ),
                  ),
          ),
          const SizedBox(width: 8),
          AnimatedContainer(
            duration: const Duration(milliseconds: 300),
            curve: Curves.bounceInOut,
            padding: const EdgeInsets.symmetric(horizontal: 7),
            height: unreadBubbleSize,
            width: room.notificationCount == 0 && !unread
                ? 0
                : (unreadBubbleSize - 9) *
                        room.notificationCount.toString().length +
                    9,
            decoration: BoxDecoration(
              color: room.highlightCount > 0
                  ? Colors.red
                  : Theme.of(context).primaryColor,
              borderRadius: BorderRadius.circular(AppConfig.borderRadius),
            ),
            child: Center(
              child: room.notificationCount > 0
                  ? Text(
                      room.notificationCount.toString(),
                      style: const TextStyle(
                        color: Colors.white,
                        fontSize: 13,
                      ),
                    )
                  : Container(),
            ),
          ),
        ],
      ),
      onTap: () => clickAction(context),
    );
  }
}