- (instancetype)initWithMRMessage:(MRMessage *)message pid:(NSString *)pid
{
	// super init; etc

	_pid = pid;
	MRParameterAssertOrReturnNil(_pid);

	auto profilePID = message.conversation.profilePID;
	if (_pid)
	{
		_uid = [_pid substringFromIndex:profilePID.length + 1];
	}

	_participantUID = message.participantUid;


	if (!_participantUID)
	{
		if (_outgoing)
		{
			NSString *profileUID = nil;
			[OBJCIM_Profile parsePidToComponents:_pid profileUID:&profileUID profilePID:nullptr service:nullptr contactUID:nil];
			_participantUID = profileUID;
		}
		else
		{
			_participantUID = _uid;
		}
	}

	// ....
}