import com.ibm.icu.text.Transliterator;
import org.springframework.stereotype.Service;

import java.text.Normalizer;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import static java.text.Normalizer.Form.NFKD;




@Service
public class DiacriticsService {

    public boolean isLatin(String input){
        String pattern = "[A-Za-z[,'%\\\\.\\\\-\\\\s]]*"; // Regex per verificare se la stringa è alfabeto latino
        Pattern p = Pattern.compile(pattern);
        Matcher m = p.matcher(input);
        return m.matches();
    }

    public String transliterator(String input){
        String id = "Any-Latin; NFD; [:Nonspacing Mark:] Remove; NFC; [:Punctuation:] Remove; Latin-ASCII;";
        String latin = Transliterator.getInstance(id)
                .transform(input);
        return latin;
    }

    public String normalizeTransliterator(String input) {
        input = Normalizer.normalize(input, NFKD);
        return input.replaceAll("[\\p{InCombiningDiacriticalMarks}]", "");
    }
}