176 lines
5.8 KiB
Dart
176 lines
5.8 KiB
Dart
import 'dart:convert';
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String? attachPreviewLabel(dynamic attaches) {
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final first = _firstPreviewAttach(attaches);
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if (first == null) return null;
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final type = (first['_type'] as String? ?? '').toUpperCase();
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switch (type) {
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case 'PHOTO':
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return 'Фото';
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case 'VIDEO':
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return _isVideoNote(first) ? 'Видео-сообщение' : 'Видео';
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case 'AUDIO':
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return 'Голосовое сообщение';
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case 'FILE':
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final name = first['name']?.toString();
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return name != null && name.isNotEmpty ? 'Файл: $name' : 'Файл';
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case 'STICKER':
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return 'Стикер';
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case 'SHARE':
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final title = first['title']?.toString();
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return title != null && title.isNotEmpty ? 'Ссылка: $title' : 'Ссылка';
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case 'POLL':
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final title = first['title']?.toString();
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return title != null && title.isNotEmpty ? 'Опрос: $title' : 'Опрос';
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case 'LOCATION':
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return 'Геопозиция';
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case 'CONTACT':
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return 'Контакт';
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case 'CONTROL':
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return _controlPreviewLabel(first);
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case 'INLINE_KEYBOARD':
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return null;
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case 'CALL':
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final video = first['callType']?.toString().toUpperCase() == 'VIDEO';
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final dur = (first['duration'] as num?)?.toInt() ?? 0;
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final hangup = first['hangupType']?.toString();
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final failed =
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dur == 0 ||
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hangup == 'CANCELED' ||
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hangup == 'REJECTED' ||
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hangup == 'MISSED';
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if (first['joinLink'] != null) {
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return video ? 'Групповой видеозвонок' : 'Групповой звонок';
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}
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if (failed) {
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return video ? 'Пропущенный видеозвонок' : 'Пропущенный звонок';
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}
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return video ? 'Видеозвонок' : 'Звонок';
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default:
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return 'Вложение';
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}
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}
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Map? _firstPreviewAttach(dynamic attaches) {
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if (attaches is! List || attaches.isEmpty) return null;
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for (final attach in attaches) {
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if (attach is! Map) continue;
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final type = (attach['_type'] as String? ?? '').toUpperCase();
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if (type == 'INLINE_KEYBOARD') continue;
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return attach;
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}
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return null;
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}
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bool _isVideoNote(Map attach) {
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final raw = attach['videoType'];
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if (raw is int) return raw == 1;
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return raw?.toString() == '1';
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}
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String? _controlPreviewLabel(Map c) {
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final title = c['title']?.toString();
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if (title != null && title.isNotEmpty) return title;
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final short = c['shortMessage']?.toString();
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if (short != null && short.isNotEmpty) return short;
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switch (c['event']?.toString()) {
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case 'new':
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return 'Чат создан';
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case 'add':
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case 'joinByLink':
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return 'Новый участник';
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case 'leave':
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return 'Участник вышел';
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case 'remove':
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return 'Участник удалён';
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case 'pin':
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return 'Закреплённое сообщение';
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case 'changeTitle':
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return 'Название чата изменено';
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case 'changeIcon':
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return 'Фото чата обновлено';
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default:
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return 'Системное сообщение';
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}
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}
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String? messagePreviewText(Map msg) {
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final link = msg['link'];
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if (link is Map && link['type']?.toString().toUpperCase() == 'FORWARD') {
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final original = link['message'];
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final inner = original is Map ? _bodyPreviewText(original) : null;
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return inner != null && inner.isNotEmpty
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? '↪ $inner'
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: '↪ Пересланное сообщение';
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}
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return _bodyPreviewText(msg);
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}
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({String? text, bool isPreview}) pinnedMessagePreview(Map msg) {
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final link = msg['link'];
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if (link is Map && link['type']?.toString().toUpperCase() == 'FORWARD') {
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final original = link['message'];
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if (original is Map) {
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final inner = pinnedMessagePreview(original);
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return inner.text != null && inner.text!.isNotEmpty
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? (text: '↪ ${inner.text}', isPreview: inner.isPreview)
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: (text: '↪ пересланное сообщение', isPreview: true);
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}
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return (text: '↪ пересланное сообщение', isPreview: true);
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}
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return _pinnedBodyPreview(msg);
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}
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({String? text, bool isPreview}) _pinnedBodyPreview(Map msg) {
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final text = msg['text']?.toString();
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if (text != null && text.isNotEmpty) return (text: text, isPreview: false);
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final label = _pinnedAttachPreviewLabel(msg['attaches']);
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return (text: label, isPreview: label != null);
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}
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String? _pinnedAttachPreviewLabel(dynamic attaches) {
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final first = _firstPreviewAttach(attaches);
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if (first == null) return null;
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final type = (first['_type'] as String? ?? '').toUpperCase();
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switch (type) {
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case 'PHOTO':
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return 'фото';
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case 'VIDEO':
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return _isVideoNote(first) ? 'кружок' : 'видео';
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case 'AUDIO':
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return 'голосовое сообщение';
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case 'FILE':
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return 'файл';
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case 'STICKER':
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return 'стикер';
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case 'SHARE':
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return 'ссылка';
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case 'POLL':
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return 'голосование';
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case 'LOCATION':
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return 'геопозиция';
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case 'CONTACT':
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return 'контакт';
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case 'CALL':
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return 'звонок';
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case 'CONTROL':
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return _controlPreviewLabel(first)?.toLowerCase();
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default:
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return 'вложение';
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}
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}
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String? _bodyPreviewText(Map msg) {
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final text = msg['text']?.toString();
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if (text != null && text.isNotEmpty) return text;
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return attachPreviewLabel(msg['attaches']);
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}
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String? messagePreviewElements(Map msg) {
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final text = msg['text'];
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if (text is! String || text.isEmpty) return null;
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final elements = msg['elements'];
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if (elements is List && elements.isNotEmpty) return jsonEncode(elements);
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return null;
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}
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