public async Task DeleteDocumentAsync(Document document)
{
var allDocuments = await _documentsRepository.GetDocumentsAsync();
var documentsToUpdate = GetInsertionAffectedDocuments(allDocuments, document.Position, allDocuments.Length).ToArray();
await _documentsRepository.DeleteDocumentAsync(document.Id, documentsToUpdate);
await _contentStorage.DeleteFile(Path.GetFileName(document.Location));
}