/*
 *   Intro to Programming CSE 1310
 * University of Texas at Arlington
 */

package code4decf18pracfinal;

import java.io.File;
import java.io.FileNotFoundException;
import java.util.Scanner;

/**
 *
 * @author jcmtiernan
 */
public class Code4DecF18PracFinal 
{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) 
    {
        /*
        ABC airport has a list of travelers kept in a file  and 
        has asked you to write a complete program that reads 
        from the user a filename and a destination and prints all 
        the travelers (Format: --Last name, First name) that travelled 
        to that destination.
        
        0 points if you code everything in main. 
        You should have at least 3 methods: 
            main, another method and the readFile method).
        You must write a method:
            public static String[][] readFile(String filename)

             It returns a String[][] with as many rows as lines in the file, 
            and each row will have as many Strings as comma-separated items 
            on that line in the file. 
        For the sample file below, the String[][] will look like this:
            [ ["Alex Aiono","Johanesburg","8-6-2017"],
            ["Marcus Schultz","Marrakech","1-24-2017"],
            ….. ] 
        Sample data in file:
        Alex Aiono,Johanesburg,8-6-2017
        Marcus Schultz,Marrakech,1-24-2017
        
        Output
        Welcome to ABC airport!
Enter the filename: travelers.txt
Enter the destination: Marrakech
List of travelers:
--Schultz, Marcus 1/24/17
--Verwest, Tijs
Good bye.
        */
        String[][] tr;
        String filename = "";
        String dest = "";
        Scanner input = new Scanner(System.in);
        System.out.println("Welcome to ABC airport!");
        System.out.print("Enter the filename: ");
        filename = input.nextLine();
        System.out.print("Enter the destination:  ");
        dest = input.nextLine();
        
        tr = readFile(filename);

        // search for destination
        System.out.println("List of travelers:");
        for (int d = 0; d < tr.length; d++)
        {
            if (tr[d][1].equalsIgnoreCase(dest))
            {
                printTraveler(tr[d]);
            }
        }
        System.out.println("Good bye.");
   
    }
    /*
    --Schultz, Marcus 1/24/17
    --Verwest, Tijs 9/3/17
    */
    public static void printTraveler(String[] trRow)
    {
        System.out.print("--");
        // "Marcus Schultz"  --->  Schultz, Marcus
        String[] names = new String[3];
        names = trRow[0].split(" ");   // Can't have "de los Santos" as one name
        System.out.print(names[1]+", "+names[0]);
        // 1-24-2017  -->  1/24/17
        names = trRow[2].split("-");
        System.out.print(" "+names[0]+"/"+names[1]+"/"+names[2].substring(2)+"\n");
        
        
    }
    
    
    
    public static String[][] readFile(String filename)
    {
        //filename = "src/code4decf18pracfinal/travelers.txt";
        Scanner travelData = new Scanner(System.in);
        try
        {
            travelData = new Scanner(new File(filename));
        }
        catch (FileNotFoundException fnfe)
        {
            System.out.println("No input file");
        }
        int count = 0;
        while (travelData.hasNextLine())
        {   
            travelData.nextLine();
            count++;
        }
        travelData.close();
        try
        {
            travelData = new Scanner(new File(filename));
        }
        catch (FileNotFoundException fnfe)
        {
            System.out.println("No input file");
        }        
        /*
        Alex Aiono,Johanesburg,8-6-2017
        Marcus Schultz,Marrakech,1-24-2017
        */
        
        String[][] temp = new String[count][3]; 
        count--;
        int index = 0;
        while (travelData.hasNextLine() && index <= count)
        {
            travelData.useDelimiter(",");
            temp[index][0] = travelData.next();
            //travelData.next();  // comma
            temp[index][1] = travelData.next();
            travelData.reset();
            //travelData.next();  // comma
            temp[index][2] = travelData.next().substring(1);
            //System.out.println("Line "+index+" *"+temp[index][0]+"* "+temp[index][1]+" "+temp[index][2]);
            index++;
        }
        
        return temp;
        
        
    }

}