package arraylists;

import java.util.ArrayList;
import java.util.List;

public class ArrayListProcessing {

    public static void main(String[] args) {
        //point A, add some strings which represent names to an ArrayList
        List<String> names = new ArrayList<>();
        names.add("Holiday, Billie");
        names.add("Claudel, Camille");
        names.add("Picasso, Pablo");
        names.add("Gallen-Kallella, Askeli");
        names.add("Zotto, Osvaldo");
        names.add("VanRiper, Daniel");
        names.add("Dendo, Tony");
        names.add("bo-bo, guy");


        //point B, make arraylist of first names only. use a for loop to print out the names seperated by spaces
        List<String> firstNamesList = firstNames(names);

        System.out.print("First names: ");
        for (String firstName : firstNamesList) {
            System.out.print(firstName + " ");
        }
        System.out.println();

        //point C
        String firstNames = String.join(", ", firstNamesList);
        System.out.println("First names: " + firstNames);

        //point D
        List<String> lastNamesList = lastNames(names);
        String lastNames = String.join(", ",  lastNamesList);
        System.out.println("Last Names : " + lastNames);

        //point E
        List<String> upperCaseFirstNamesList = upperCaseNames(firstNames(names));
        String upperCaseFirstNames = String.join(", " , upperCaseFirstNamesList);
        System.out.println("Upper Case First Names : " + upperCaseFirstNames );

        //point F
        List<String> hyphenatedLastNamesList = hyphenatedNames(lastNames(names));
        String hyphenatedLastNames = String.join(", ", hyphenatedLastNamesList);
        System.out.println("Hyphenated Last Names : " + hyphenatedLastNames);

        //point G
        int totalLength = totalNameLength(names);
        System.out.println("Total length: " + totalLength);

        //point H
        int totalFirstNameLength = totalNameLength(firstNames(names));
        System.out.println("Total first name length: " + totalFirstNameLength);

        //point I
        int totalNameProduct = totalNameProductLength(names);
        System.out.println("The product of the name lengths: " + totalNameProduct);



    }

    public static int totalNameProductLength(List<String> names) {
        int productLength = 1;
        for (String name: names) {
            productLength *= name.length();
        }
        return productLength;
    }
    public static int totalNameLength(List<String> names) {
        int totalLength = 0;
        for (String name: names) {
            totalLength += name.length();
        }
        return totalLength;
    }

    public static List<String> hyphenatedNames(List<String> names) {
        List<String> hyphenateds = new ArrayList<>();
        for (String name: names) {
           if (name.contains("-")) {
              hyphenateds.add(name);
           }
        }
        return hyphenateds;
    }

    public static List<String> upperCaseNames(List<String> names) {
        List<String> uppercases = new ArrayList <>();
        for (String name: names) {
            uppercases.add(name.toUpperCase());
            }
        return uppercases;

    }

    private static List<String> lastNames(List<String> names) {
       List<String> lasts = new ArrayList<>();
       for (String name: names){
           lasts.add(lastName(name));
       }
       return lasts;

    }


    private static String firstName(String directoryStyleName) {
        int spaceLocation = directoryStyleName.indexOf(" ");
        String firstName = directoryStyleName.substring(spaceLocation);
        return firstName;
    }


    private static List<String> firstNames(List<String> names) {
        List<String> firsts = new ArrayList<>();
        for (String name : names) {
            firsts.add(firstName(name));
        }
        return firsts;

    }

    private static String lastName(String directoryStyleName) {
        int seperatorLocation = directoryStyleName.indexOf(",");
        String lastName =  directoryStyleName.substring(0, seperatorLocation );
        return lastName;
    }
}