/**
 * A class to track and allow for reservations in a Library
 * 
 * @George Wilkinson
 * @1.0
 */

import java.util.Date;
import java.io.PrintWriter;
import java.util.Scanner;

public class LibraryReservation
{
    // instance variables
    private String reservationNo;
    private String itemCode;
    private String userID;
    private Date startDate;
    private int noOfDays;
    
    /**
     * Constructor for objects of class LibraryReservation
     */
    public LibraryReservation( String reservationNo, String itemCode, String userID, String startDate, int noOfDays )
    {
        this.reservationNo = reservationNo;
        this.itemCode = itemCode;
        this.userID = userID;
        this.startDate = DateUtil.convertStringToDate( startDate );
        this.noOfDays = noOfDays;
    }

    /**
     * Default Constructor for objects of class LibraryReservation
     */
    public LibraryReservation(){}
    
    /**
     * Accessor Start
     */
    
    public String getReservationNo()
    {
        return reservationNo;
    }
    
    public String getItemCode()
    {
        return itemCode;
    }
    
    public String userID()
    {
        return userID;
    }
    
    public Date getStartDate()
    {
        return startDate;
    }
    
    public int getNoOfDays()
    {
        return noOfDays;
    }
    
    /**
     * Accessor End
     */
    
    /**
     * Mutator Start
     */
    
    public void setReservationNo( String reservationNo )
    {
        this.reservationNo = reservationNo;
    }
    
    public void setItemCode( String itemCode )
    {
        this.itemCode = itemCode;
    }
    
    public void setUserID( String userID )
    {
        this.userID = userID;
    }
    
    public void setStartDate( String startDate )
    {
        this.startDate = DateUtil.convertStringToDate( startDate );
    }
    
    public void setNoOfDays( int noOfDays )
    {
        this.noOfDays = noOfDays;
    }
    
    /**
     * Mutator End
     */
    
    /**
     * Concatenates values to output a formatted string.
     */
    public String toString()
    {
        return reservationNo + " " + userID + " " + itemCode;
    }
    
    /**
     * Prints to terminal, the details of the reservation.
     */
    public void printDetails()
    {
        System.out.println( "Reservation Number: " + reservationNo + 
                            "\nItem Code: " + itemCode +
                            "\nUser ID: " + userID +
                            "\nDate Commencing: " + DateUtil.convertDateToShortString( startDate ) +
                            "\nDuration: " + noOfDays + " days" );
    }
    
    /**
     * Forms field variables in a desired format, prints
     * to the PrintWriter, and flush to the file.
     * Takes Parameter
     *  PrintWriter @writer
     */
    public void writeData( PrintWriter writer )
    {
        writer.print( reservationNo + "," + itemCode + "," + userID + "," + DateUtil.convertDateToShortString( startDate ) + "," + noOfDays );
        writer.flush();
    }
    
    /**
     * Populate the fields with details from the scanner
     * Takes Parameters
     *  Scanner @detailScanner
     */
    public void readData( Scanner detailScanner )
    {
        if ( detailScanner != null ) {
            this.reservationNo = detailScanner.next().trim();
            this.itemCode = detailScanner.next().trim();
            this.userID = detailScanner.next().trim();
            this.startDate = DateUtil.convertStringToDate( detailScanner.next().trim() );
            this.noOfDays = Integer.parseInt( detailScanner.next().trim() );
        }
    }
}