[[nodiscard]] SearchServer::Query SearchServer::ParseQuery(string_view text) const {
    Query query;
    for (const auto &word: SplitIntoWords(text)) {
        const auto query_word = ParseQueryWord(string(word));
        if (!query_word.is_stop) {
            if (query_word.is_minus) {
                query.minus_words.insert(query_word.data);
            } else {
                query.plus_words.insert(query_word.data);
            }
        }
    }
    return query;
}



[[nodiscard]] SearchServer::QueryWord SearchServer::ParseQueryWord(string_view word) const {
    bool is_minus = false;
    // Word shouldn't be empty
    if (word[0] == '-') {
        is_minus = true;
        word = word.substr(1);
    }
    if (word.empty() || !IsValidWord(word)) {
        throw invalid_argument("Query has incorrect symbols in " + string(word) + ".");
    }
    if (is_minus && word[0] == '-') {
        throw invalid_argument("Query has incorrect minus-words:" + string(word) + ".");
    }
    return {word, is_minus, IsStopWord(word)};
}