vkdart

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import 'package:vkdart/vkontakte.dart';
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/// Offset Chat ID.
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const peerChatIdOffset = 2000000000;
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/// Transforms a list of attachment objects in the format:
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/// ```dart
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/// [{'type': 'photo', 'photo': {...}}, {'type': 'audio', 'audio': {...}}, ...]
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/// ```
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/// in the attachment model.
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List<AttachmentModel> transformAttachments(
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        List<Map<String, dynamic>> attachments) =>
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    attachments.map((e) {
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      final attachType = e['type'];
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      return AttachmentModel.fromSpecificModel(e[attachType], attachType);
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    }).toList();
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/// Message Source
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enum MessageSource {
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  /// User.
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  user,
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  /// Group.
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  group,
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  /// Chat.
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  chat
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}
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/// Returns the dialog type.
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/// Accepts the [id] parameter as input,
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/// if [id] is less than [peerChatIdOffset], [MessageSource.chat] is returned,
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/// if [id] is less than zero, returned [MessageSource.group],
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/// in all other cases [MessageSource.user]
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MessageSource getPeerType(int id) {
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  if (peerChatIdOffset < id) {
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    return MessageSource.chat;
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  }
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  if (id < 0) {
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    return MessageSource.group;
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  }
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  return MessageSource.user;
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}
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/// Checks the [value] for an integer, then checks for one.
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/// If the value is not an integer, null is returned,
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bool? checkBoolUtil(Object? value) {
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  if (value is! int) {
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    return null;
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  }
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  return value == 1;
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}
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