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, Akseli");
        names.add("Zotto, Osvaldo");
        names.add("Ahir, Vishal");
        names.add("Singh, Sooraj");
        names.add("Patel, Preet");

        List<String> firstNamesList = firstNames(names);
        System.out.println("first names: ");
        for (String firstName : firstNamesList) {
            System.out.println(firstName + " ");
        }
        System.out.println();
        String firstNames = String.join(" ,", firstNamesList);
        System.out.println("firstNames: " + firstNames);
        List<String> lastNamesList = lastNames(names);
        System.out.println("last names: ");
        for (String lastName : lastNamesList) {
            System.out.println(lastName + " ");
        }
        System.out.println();
        String lastNames = String.join(" ,", lastNamesList);
        System.out.println("lastNames: " + lastNames);
        List<String> upperCaseFirstNamesList = upperCaseNames(firstNames(names));
        String uppercaseFirstNames = String.join(" , ", upperCaseFirstNamesList);
        System.out.println("Uppercase first names: " + uppercaseFirstNames);
        List<String> hyphenatedNamesList = hyphenatedNames(names);
        String hyphenatedNames = String.join(" , ", hyphenatedNamesList);
        System.out.println(" hyphenated names: " + hyphenatedNames);
        int totalLength = totalNameLength(names);
        System.out.println("Total length: " + totalLength);
        int firstlength = totalNameLength(firstNames(names));
        System.out.println(" Totalfirst length: " + firstlength);
        int Product = totalNameProduct(names);
        System.out.println("TotalName Product: " + Product);
        int secondlength = totalNameProduct(firstNames(names));
        System.out.println(" Totalsecondlength: " + secondlength);
    }

    private static String firstName(String directoryStyleName) {
        int commaposition = directoryStyleName.indexOf(",");
        return directoryStyleName.substring(commaposition + 1);
    }

    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 commaposition = directoryStyleName.indexOf(",");
        return directoryStyleName.substring(0, commaposition);
    }

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

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

    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 int totalNameLength(List<String> names) {
        int totalLength = 0;
        for (String name : names) {
            totalLength = totalLength + name.length();
        }
        return totalLength;
    }

    public static int totalNameProduct(List<String> names) {
        int totalProduct = 1;
        for (String name : names) {
            totalProduct = totalProduct * name.length();
        }
        return totalProduct;
    }

}