import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.Comparator;
import java.util.List;
import java.util.stream.Stream;
import java.util.stream.Collectors;

public class Words
{      
   public static void main(String[] args) throws IOException
   {
      try (Stream<String> lines = Files.lines(Paths.get("../words.txt")))
      {
         long count = lines
            .filter(w -> !w.endsWith("'s"))
            .filter(w -> hasFiveVowels(w))
            .count();
         System.out.println("Number of words with all five vowels: " + count);
      }

      try (Stream<String> lines = Files.lines(Paths.get("../words.txt")))
      {
         List<String> examples = lines 
            .filter(w -> !w.endsWith("'s"))
            .filter(w -> hasFiveVowels(w))
            .limit(20)
            .collect(Collectors.toList());
         System.out.println("20 words with all five vowels: " + examples);
      }

      try (Stream<String> lines = Files.lines(Paths.get("../words.txt")))
      {
         String shortest = lines
            .filter(w -> !w.endsWith("'s"))
            .filter(w -> hasFiveVowels(w))
            .min(Comparator.comparing(String::length))
            .orElse("");
         System.out.println("Shortest: " + shortest);
      }
      
      try (Stream<String> lines = Files.lines(Paths.get("../words.txt")))
      {
         List<String> allShortest = lines
            .filter(w -> !w.endsWith("'s"))
            .filter(w -> hasFiveVowels(w))
            .filter(w -> w.length() == 7)
            .collect(Collectors.toList());
         System.out.println("All of that length: " + allShortest);
      }

      try (Stream<String> lines = Files.lines(Paths.get("../words.txt")))
      {
         String longest = lines
            .filter(w -> !w.endsWith("'s"))
            .filter(w -> hasFiveVowels(w))
            .max(Comparator.comparing(String::length))
            .orElse("");
      
         System.out.println("Longest: " + longest);
      }
   }
   
   public static boolean hasFiveVowels(String word) 
   {
      return word.toLowerCase().codePoints()
         .filter(c -> c == 'a' || c == 'e' || c == 'i' || c == 'o' || c == 'u')
         .distinct()
         .count() == 5;
   }
}