/*
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 */
package lab3part4spr16;

import java.util.Scanner;

/**
 *
 * @author jcmtiernan
 */
public class Lab3Part4Spr16
{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args)
    {
        String monthName;
        String dayNum;
        String yearNum;
        String sp = " ";
        int day;
        int month;
        int year;
        boolean valid = true;
        Scanner in = new Scanner(System.in);
        
        System.out.println("Please enter a date in the form of month name then day number comma year number");
        System.out.println("seperating the month and day by a space and putting a space after the comma.");
        System.out.println("Use this format Mmmmmmm dd, yyyy using one or two digits"+
                " for day and two or four digits for year");
        System.out.print("Please enter your date: ");    
        
        monthName = in.next();
        dayNum = in.next();
        yearNum = in.next();
        
        System.out.println("You entered "+monthName+sp+dayNum+sp+yearNum);        
        
        // month name to integer value
        if ((monthName.equalsIgnoreCase("January")) || (monthName.equalsIgnoreCase("jan")) || (monthName.equals("Jan.")))
        {
            month = 1;
        }
        else if ((monthName.equalsIgnoreCase("February")) || (monthName.equalsIgnoreCase("feb")) || (monthName.equals("Feb.")))
        {
            month = 2;
        }
        /*
         * Fill in the missing months
        */
        else if ((monthName.equalsIgnoreCase("December")) || (monthName.equalsIgnoreCase("dec")) || (monthName.equals("Dec.")))
        {
            month = 12;
        }
        else
        {
            month = -1;
            valid = false;
        }

        char first = dayNum.charAt(0);
        boolean isDayNum = ((( ((first == '0')||(first == '1')) ||
                               ((first == '2')||(first == '3')) ) ||
                             ( ((first == '4')||(first == '5')) ||
                               ((first == '6')||(first == '7')) )) ||
                               ((first == '8')||(first == '9')) );
        
        if ((isDayNum) && (dayNum.length() == 3))
        {
            // This turns the first two digits of string dayNum into an int
            day = Integer.parseInt(dayNum.substring(0,2));  

        }
        else if ((isDayNum) && (dayNum.length() == 2))
        {
            // This turns the first one digits of string dayNum into an int
            day = Integer.parseInt(dayNum.substring(0,1));  

        }
        else
        {
            day = -1;
            valid = false;
        }
        
        /*
         * Copy the code from part 3 day check here to check the number of days in month
        */
        
        first = yearNum.charAt(0);
        boolean isYearNum = ((( ((first == '0')||(first == '1')) ||
                               ((first == '2')||(first == '3')) ) ||
                             ( ((first == '4')||(first == '5')) ||
                               ((first == '6')||(first == '7')) )) ||
                               ((first == '8')||(first == '9')) );
        
        if (isYearNum)
        {
            year = Integer.parseInt(yearNum);  // This turns the string dayNum into an int
        }
        else
        {
            year = 999999;
            valid = false;
        }
        
        if (year < 100)
        {
            year += 2000;
        }
        
        
        /*
         * Copy the code from part 3 year check here
        */
        
        if (valid)
        {
            System.out.print("Your date is "+month+"/"+day+"/"+year+"\n");
        }
        else
        {
            System.out.println("Your date is invalid");
        }           
        
    }
    
}