part of '../rooms_panel.dart';

// Chatlisten-Eintrag im Handy-Layout (Bernds Feedback 2026-10-07: die Handy-App
// soll sich wie ein gewohnter Messenger anfühlen): großer Avatar, Name mit
// Uhrzeit der letzten Nachricht, darunter die letzte Nachricht als Vorschau
// und der Ungelesen-Zähler. Am PC bleibt die kompakte Discord-Liste
// (_RoomItem); Voice-Kanäle behalten ihre eigene Darstellung.

const _kTileAvatar = 46.0;

class _MobileRoomTile extends StatelessWidget {
  final Room room;
  final bool isActive;
  final PyramidTheme pt;
  final String? myUserId;
  final VoidCallback onTap;
  final VoidCallback onLongPress;

  const _MobileRoomTile({
    required this.room,
    required this.isActive,
    required this.pt,
    required this.myUserId,
    required this.onTap,
    required this.onLongPress,
  });

  @override
  Widget build(BuildContext context) {
    final name = room.getLocalizedDisplayname();
    final unread = room.notificationCount;
    final mention = room.highlightCount > 0;
    final last = room.lastEvent;
    final preview = _roomPreview(room, myUserId);
    final time = last == null ? null : chatListTime(last.originServerTs);

    return GestureDetector(
      behavior: HitTestBehavior.opaque,
      onTap: onTap,
      onLongPress: onLongPress,
      child: Container(
        color: isActive ? pt.accentSoft : Colors.transparent,
        padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 9),
        child: Row(
          children: [
            room.isDirectChat
                ? _DmAvatar(room: room, pt: pt, size: _kTileAvatar)
                : _RoomTileAvatar(room: room, pt: pt),
            const SizedBox(width: 12),
            Expanded(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                mainAxisSize: MainAxisSize.min,
                children: [
                  Row(
                    children: [
                      Expanded(
                        child: Text(
                          name,
                          maxLines: 1,
                          overflow: TextOverflow.ellipsis,
                          style: TextStyle(
                            color: pt.fg,
                            fontSize: 15,
                            fontWeight:
                                unread > 0 ? FontWeight.w700 : FontWeight.w600,
                          ),
                        ),
                      ),
                      if (time != null) ...[
                        const SizedBox(width: 8),
                        Text(
                          time,
                          style: TextStyle(
                            color: unread > 0 ? pt.accent : pt.fgDim,
                            fontSize: 12,
                            fontWeight:
                                unread > 0 ? FontWeight.w600 : FontWeight.w400,
                          ),
                        ),
                      ],
                    ],
                  ),
                  const SizedBox(height: 3),
                  Row(
                    children: [
                      Expanded(
                        child: Text(
                          preview ?? '',
                          maxLines: 1,
                          overflow: TextOverflow.ellipsis,
                          style: TextStyle(
                            color: unread > 0 ? pt.fgMuted : pt.fgDim,
                            fontSize: 13.5,
                          ),
                        ),
                      ),
                      // Immer im Baum, damit der Zähler beim Erscheinen und
                      // Hochzählen federnd aufploppen kann.
                      SpringBump(
                        value: unread,
                        child: unread > 0
                            ? Padding(
                                padding: const EdgeInsets.only(left: 8),
                                child: _UnreadBadge(
                                    count: unread, isMention: mention, pt: pt),
                              )
                            : const SizedBox.shrink(),
                      ),
                    ],
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}

/// Avatar für Räume (kein DM): Raumbild oder Symbol. Gruppen (kein
/// Server-Kanal) sind rund wie Personen, Server-Kanäle abgerundet mit „#“.
class _RoomTileAvatar extends ConsumerWidget {
  final Room room;
  final PyramidTheme pt;
  final double size;
  const _RoomTileAvatar(
      {required this.room, required this.pt, this.size = _kTileAvatar});

  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final client = ref.watch(matrixClientProvider).valueOrNull;
    final isChannel = ref.watch(spaceChannelIdsProvider).contains(room.id);
    final radius = BorderRadius.circular(isChannel ? size * 0.3 : size / 2);
    final fallback = Container(
      width: size,
      height: size,
      decoration: BoxDecoration(
        color: isChannel ? pt.bg3 : pt.accentSoft,
        borderRadius: radius,
      ),
      child: Icon(
        isChannel
            ? (room.encrypted ? Icons.lock_outline_rounded : Icons.tag_rounded)
            : Icons.groups_rounded,
        size: size * 0.5,
        color: isChannel ? pt.fgMuted : pt.accent,
      ),
    );
    if (client == null || room.avatar == null) return fallback;
    return MxcAvatar(
      mxcUri: room.avatar,
      client: client,
      size: size,
      borderRadius: radius,
      placeholder: (_) => fallback,
    );
  }
}

/// Vorschau der letzten Nachricht: gleiche Texte wie in Benachrichtigungen
/// (Medien als „📷 Foto“ usw., Antwort-Zitat entfernt), in Gruppen mit
/// Absender, eigene Nachrichten mit „Du:“.
String? _roomPreview(Room room, String? myUserId) {
  final e = room.lastEvent;
  if (e == null) return null;
  if (e.type == EventTypes.Encrypted) return '🔒 Verschlüsselte Nachricht';
  final body = notificationBody(e);
  if (body == null) return null;
  if (e.senderId == myUserId) return 'Du: $body';
  if (room.isDirectChat) return body;
  return '${e.senderFromMemoryOrFallback.calcDisplayname()}: $body';
}

/// Sprachkanal im Handy-Layout: Kachel wie ein Chat, darunter wer gerade drin
/// ist (Avatare + Namen) bzw. „Antippen zum Beitreten“.
class _MobileVoiceTile extends StatelessWidget {
  final Room room;
  final bool inVoice;
  final List<Map<String, dynamic>> participants;
  final Client? client;
  final PyramidTheme pt;
  final VoidCallback onTap;
  final VoidCallback onLongPress;

  const _MobileVoiceTile({
    required this.room,
    required this.inVoice,
    required this.participants,
    required this.client,
    required this.pt,
    required this.onTap,
    required this.onLongPress,
  });

  @override
  Widget build(BuildContext context) {
    final green = pt.online;
    final names = participants
        .map((p) => (p['displayName'] as String? ?? '').split(' ').first)
        .where((n) => n.isNotEmpty)
        .toList();
    final subtitle = inVoice
        ? 'Du bist drin · antippen zum Verlassen'
        : participants.isEmpty
            ? 'Sprachkanal · antippen zum Beitreten'
            : names.length <= 2
                ? '${names.join(' und ')} ${names.length == 1 ? 'ist' : 'sind'} drin'
                : '${names.take(2).join(', ')} und ${names.length - 2} weitere';
    return GestureDetector(
      behavior: HitTestBehavior.opaque,
      onTap: onTap,
      onLongPress: onLongPress,
      child: Container(
        color: inVoice ? green.withValues(alpha: 0.10) : Colors.transparent,
        padding: const EdgeInsets.symmetric(horizontal: 14, vertical: 9),
        child: Row(
          children: [
            Container(
              width: _kTileAvatar,
              height: _kTileAvatar,
              decoration: BoxDecoration(
                color: green.withValues(alpha: inVoice ? 0.30 : 0.14),
                borderRadius: BorderRadius.circular(_kTileAvatar * 0.3),
              ),
              child: Icon(
                participants.isEmpty
                    ? Icons.volume_up_rounded
                    : Icons.graphic_eq_rounded,
                size: 22,
                color: green,
              ),
            ),
            const SizedBox(width: 12),
            Expanded(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                mainAxisSize: MainAxisSize.min,
                children: [
                  Text(room.getLocalizedDisplayname(),
                      maxLines: 1,
                      overflow: TextOverflow.ellipsis,
                      style: TextStyle(
                          color: pt.fg,
                          fontSize: 15,
                          fontWeight: FontWeight.w600)),
                  const SizedBox(height: 3),
                  Text(subtitle,
                      maxLines: 1,
                      overflow: TextOverflow.ellipsis,
                      style: TextStyle(
                          color: participants.isEmpty && !inVoice
                              ? pt.fgDim
                              : green,
                          fontSize: 13.5)),
                ],
              ),
            ),
            if (participants.isNotEmpty && client != null) ...[
              const SizedBox(width: 8),
              CallAvatarStack(
                participants: participants,
                client: client!,
                ringColor: pt.bg1,
                size: 26,
              ),
            ],
          ],
        ),
      ),
    );
  }
}