/* 
A progran to perform some bacis operatons 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, Akseli");
        names.add("Zotto, Osvaldo");
        names.add("Shrestha, Bipin");
        names.add("Mishra, Neeraj");
        names.add("Bhatt, Ashutosh");

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


        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("Last names: " +"\n"+lastNames);

        List<String> upperCaseFirstNamesList = upperCaseNames(firstNames(names));
        String upperCaseFirstNames = String.join(",",upperCaseFirstNamesList);
        System.out.println("Uppercase first names: " +upperCaseFirstNames);

        List<String> hyphenatedList = hyphenatedNames(lastNames(names));
        String hyphenatedlast = String.join(",",hyphenatedList);
        System.out.println("hyphenated last name : " +hyphenatedlast);


        int totallength = totalNamesLength(names);
        System.out.println("Total length " +totallength);
        int totalfirstlength = totalNamesLength(firstNames(names));
        System.out.println("Total first name length " +totalfirstlength);

        double productoflength = productNamesLength(names);
        System.out.println(("product of length " +productoflength));
    }
    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 totalNamesLength(List<String> names){
        int totallength = 0;
        for(String name : names){
            totallength = totallength + name.length();
        }
        return totallength;
    }
    public static double productNamesLength(List<String> names){
        double productoflength = 1;
        for(String name : names){
            productoflength = productoflength * name.length();
        }
        return productoflength;
    }
}