/* 
 * A program to perform some basic operations on a list of String names 
 */

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-Kallela, Kaseli");
        names.add("Zotto, Osvaldo");

        // POINT B: Create an ArrayList of just the first names of the names
        //          ArrayList. use a for loop to print out the names, separated
        //          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: Use String's join function to create and print a String of
        //          just the first names of the names ArrayList which each
        //          name separated by a comma.
        String firstNames = String.join(", ", firstNamesList);

        System.out.println("First names: " + firstNames);

        // POINT D: By analogy from points B and C, print a comma-separated
        //          list of the last names in the names ArrayList.
        List<String> lastNamesList = lastNames(names);

        System.out.print("Last names: ");
        for (String lastName : lastNamesList){
            System.out.print(lastName + " ");
        }
        System.out.println();

        String lastNames = String.join(", ", lastNamesList);

        System.out.println("Last names: " + lastNames);

        // POINT E: Print a comma-separated list of all uppercase first names
        //          from the list of names in the names ArrayList.
        List<String> upperCaseFirstNamesList = upperCaseNames(firstNames(names));
        String upperCaseFirstNames = String.join(", ", upperCaseFirstNamesList);

        System.out.println("Uppercase first names: " + upperCaseFirstNames);

        // POINT F: Print a comma-separated list of all hyphenated last names
        //          from the list of names in the names ArrayList.
        List<String> hyphenatedNamesLastNamesList = hyphenatedNames(lastNames(names));
        String hyphenatedNamesLastNames = String.join(", ", hyphenatedNamesLastNamesList);

        System.out.println("Hyphenated first names: " + hyphenatedNamesLastNames);

        // POINT G: Print the integer value of the total length of all names
        //          in the names ArrayList.
        int totalLength = totalNameLength(names);

        System.out.println("Total length: " + totalLength);

        // POINT H: Print the integer value of the total length of all
        //          first names in the names ArrayList.
        int totalLength2 = totalNameLength(names) - lastNames.length();

        System.out.println("Length of first names: " + totalLength2);

        // POINT I: Print the integer value of the product of the length of
        //          all first names in the names ArrayList.
        int producttotalLength = totalNameLength(names) * (firstNames.length() + lastNames.length());

        System.out.println("Product of the lengths: " + producttotalLength);
    }
    private static String firstName(String directoryStyleName) {
        directoryStyleName = directoryStyleName.substring(directoryStyleName.indexOf(",") + 2);
        return directoryStyleName;
    }
    private static String lastName(String directoryStyleName) {
        directoryStyleName = directoryStyleName.substring(0,directoryStyleName.indexOf(","));
        return directoryStyleName;
    }
    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 List<String> lastNames(List<String> names){
        List<String> lasts = new ArrayList<>();
        for (String name : names){
            lasts.add(lastName(name));
        }
        return lasts;
    }
    private 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> hyphenatedNames(List<String> names){
        List<String> hyphenateds = new ArrayList<>();
        for (String name : names){
            if (name.contains("-")) {
                hyphenateds.add(name);
            }
        }
        return hyphenateds;
    }
    public static int totalNameLength(List<String> names){
        int totalLength = 0;
        for (String name : names){
            totalLength = totalLength + name.length();
        }
        return totalLength;
    }
    public static int productNameLength(List<String> names){
        int producttotalLength = 0;
        for (String name : names){
            producttotalLength = producttotalLength * name.length();
        }
        return producttotalLength;
    }
}