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


package arraylistplay;

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");
// POINT C: Use String’s join function to create and print a String of
// just the first names of the names ArrayList with each
// name separated by a comma.
        List<String> firstNamesList = firstNames(names);

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


        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);
        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> hyphenatedNamesList = hyphenatedNames(names);
        String hyphenates = String.join(", ", hyphenatedNamesList);
        System.out.println("Hyphenated names: " + hyphenates);

        // 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 totalFirstsLength = totalNameLength(firstNamesList);
        System.out.println("First names length: " + totalFirstsLength);


        // POINT I: Print the integer value of the product of the length of
        // all first names in the names ArrayList.
        for (int i = 0; i < names.size(); i = i + 1) {
            System.out.println(names.get(i) + "'s length: " + names.size());
        }
    }
    public static int totalNameLength(List<String> names) {
        int totalLength = 0;
        for (String name : names) {
            totalLength = 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;
    }


        // 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.
        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 String firstName(String directoryStyleName) {
        int commaPosition = directoryStyleName.indexOf(",");
        directoryStyleName = directoryStyleName.substring(commaPosition);

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