Utility

package domain;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Random;

public class Utility {

    /**
     * Static HashMap; apparently needs .unmodifiable Map a region to an
     * ArrayList
     *
     */
    protected static Map<String, List<String>> timeZone2StateMap = Collections.unmodifiableMap(new HashMap<String, List<String>>() {
        {
            put("Pacific", new ArrayList());
            get("Pacific").add("California");
            get("Pacific").add("Oregon");
            get("Pacific").add("Nevada");
            get("Pacific").add("Washington");

            put("Mountain", new ArrayList());
            get("Mountain").add("Utah");
            get("Mountain").add("Arizona");
            get("Mountain").add("New Mexico");
            get("Mountain").add("Colorado");
            get("Mountain").add("Montana");
            get("Mountain").add("Idaho");
            get("Mountain").add("Wyoming");

            put("Central", new ArrayList());
            get("Central").add("Wisconsin");
            get("Central").add("Iowa");
            get("Central").add("Illinois");
            get("Central").add("Missouri");
            get("Central").add("Kansas");
            get("Central").add("Kentucky");
            get("Central").add("Alabama");
            get("Central").add("Mississippi");
            get("Central").add("Louisiana");
            get("Central").add("Texas");
            get("Central").add("Oklahoma");
            get("Central").add("Nebraska");
            get("Central").add("North Dakota");
            get("Central").add("South Dakota");
            get("Central").add("Arkansas");
            get("Central").add("Minnesota");
            get("Central").add("Tennessee");

            put("Eastern", new ArrayList());
            get("Eastern").add("Florida");
            get("Eastern").add("Georgia");
            get("Eastern").add("South Carolina");
            get("Eastern").add("North Carolina");
            get("Eastern").add("Virginia");
            get("Eastern").add("West Virginia");
            get("Eastern").add("Michigan");
            get("Eastern").add("Delaware");
            get("Eastern").add("New York");
            get("Eastern").add("New Hampshire");
            get("Eastern").add("Vermont");
            get("Eastern").add("Connecticut");
            get("Eastern").add("Massachusetts");
            get("Eastern").add("Maine");
            get("Eastern").add("Vermont");
            get("Eastern").add("Rhode Island");
            get("Eastern").add("Ohio");
            get("Eastern").add("Pennsylvania");
            get("Eastern").add("Indiana");
            get("Eastern").add("Maryland");
            get("Eastern").add("New Jersey");
        }
    });
    /**
     * the 50 states in an Array (territories not included); HashMap values
     * toArray then concatenate maybe?
     *
     */
    protected static String[] stateArray = {"California", "Oregon", "Nevada", "Washington", "Utah", "Arizona", "New Mexico", "Colorado", "Montana", "Idaho",
        "Wyoming", "Wisconsin", "Iowa", "Illinois", "Missouri", "Kansas", "Kentucky", "Alabama", "Mississippi", "Louisiana", "Texas", "Oklahoma", "Nebraska", "North Dakota", "South Dakota", "Arkansas", "Minnesota",
        "Tennessee", "Florida", "Georgia", "South Carolina", "North Carolina", "Virginia", "West Virginia", "Michigan", "Delaware", "New York", "New Hampshire", "Vermont", "Connecticut", "Massachusetts", "Maine", "Vermont",
        "Rhode Island", "Ohio", "Pennsylvania", "Indiana", "Maryland", "New Jersey"};

    /**
     * lets pull a random state for distribution
     *
     */
    public static String getState() {
        Random getRandom = new Random();
        int r = getRandom.nextInt(stateArray.length - 1);
        String state = stateArray[r];
        return state;
    }

    /**
     * check for state in ArrayList and get the key. Why is there no existing
     * method in the API? this seems like a no-brainer
     *
     * @param state
     * @return
     */
    public static String regionLookup(String state) {
        //whip out a iterator
        Iterator it = timeZone2StateMap.entrySet().iterator();
        //so long as the hashmap contains another value
        while (it.hasNext()) {
            //each K,V value is stored
            Map.Entry pairs = (Map.Entry) it.next();
            //put the V into a list
            List<String> values = (List<String>) pairs.getValue();
            //Bingo! Now give me that key!
            if (values.contains(state)) {
                return (String) pairs.getKey();
            }
        }
        return null;
    }

    /**
     * Just a random product generator; thinking about reworking with a Map as
     * time permits
     *
     * @return
     */
    public static Product getRandomProduct() {
        int r = new Random().nextInt(5);
        Product randomProduct = null;
        switch (r) {
            case 0:
                randomProduct = new Product("01", "firstProduct", "This is the first product", 12, 14);
                break;
            case 1:
                randomProduct = new Product("02", "secondProduct", "This is the second product", 12, 14);
                break;
            case 2:
                randomProduct = new Product("03", "thirdProduct", "This is the third product", 12, 14);
                break;
            case 3:
                randomProduct = new Product("04", "fourthProduct", "This is the fourth product", 12, 14);
                break;
            case 4:
                randomProduct = new Product("05", "fifthProduct", "This is the fifth product", 12, 14);
                break;
        }
        return randomProduct;
    }

    /**
     * Our stopwatch utility method
     *
     * @param startTime
     */
    public static void getTotalTime(long startTime) {
        System.out.println("Total time: " + (System.currentTimeMillis() - startTime) / 1000 + " seconds");
    }
}