import java.util.Scanner;
import java.io.*;
import java.util.*;

/**LibraryAdmin class, control center of library*/
public class LibraryAdmin{
    
    Scanner input = new Scanner(System.in);
    BufferedReader in;
    Library lib;
    
    /**Method which test the system*/
    public void testSystem()
    {
        System.out.println("Please enter the library Name " );
        String libraryName = input.next(); //current library name
        lib = new Library(libraryName.toUpperCase()); //instantiating class Library with the current library name
        
        int choice = 0; //initial choice value
        
        do{ //do loop
        
        choice = lib.textMenu(); //bring menu up after each choice completion
        
            if(choice==1)
            {
                int number = lib.inputInt("Press 1 to add a Student, Press 2 to add a member of staff " );
                lib.addUser(number);  //calls addUser method passing it the type of user to add
            }

            if(choice==2)
            {
                int number = lib.inputInt("Press 1 to add a Book, Press 2 to add a DVD " );
                lib.addItem(number);  //calls addItem method passing it the type of item to add
            }
        
            if(choice==3)
            {
                lib.getBorrowers(); //calls getBorrowers method
            }
            
            if(choice==4)
            {
                lib.getItems();  //calls getItems method
            }
            
            if(choice==5)
            {
                lib.searchUsers(); //calls searchUsers method
            }
            
            if(choice==6)
            {
                lib.searchItems(); //calls searchItems method
            }
            
            if(choice==7)
            {
                int loan = lib.inputInt("Press 1 to loan a Book, Press 2 to loan a DVD " );
                lib.loanItems(loan);  //calls loanItems method passing it the loan type
            }
            
            if(choice==8)
            {
                lib.returnItem();  //calls the returnItem method
            }
            
            if(choice==9)
            {
                //int representing the type of load the user wishes to make
                int load = lib.inputInt("Press 1 to load a Borrower, Press 2 to load an Item " );
                
                    if(load==1)
                    {
                        int borrower = lib.inputInt("Press 1 to load a Student file, Press 2 to load a Staff file" );
                        loadBorrowerFile(borrower);    //calls loadBorrowerFile passing it the type of Borrower                    
                    }
                    
                    else if(load==2)
                    {
                        int item = lib.inputInt("Press 1 to load a book file, Press 2 to load a dvd file" );
                        loadItemFile(item);     //calls loadItemFile passing it the type of Item
                    }
            }
        
        
        }
        while(choice != 10); //exit when choice == 10
    }
    
    /**loadBorrowerFile method*/
    public void loadBorrowerFile(int choice)
    {
        String studentBorrower;
        String staffBorrower;
            
        if(choice==1)
        {
            try {
                
                System.out.println("Please enter the name of the student file" );
                String fileName = input.next();
                in = new BufferedReader(new FileReader(fileName+".txt"));
                studentBorrower = in.readLine();
                
                StringTokenizer st = new StringTokenizer(studentBorrower, ",");   // "," is the separator
                String firstName = st.nextToken();
                String lastName = st.nextToken();
                String title = st.nextToken();
                String dateOfBirth = st.nextToken();
                String homeAddress = st.nextToken();
                String phoneNumber = st.nextToken();
                int barCode = Integer.parseInt(st.nextToken());
                String studentId = st.nextToken();
                
                StudentBorrower studentBor = new StudentBorrower(firstName, lastName, title, dateOfBirth,
                                                                 homeAddress, phoneNumber, barCode, studentId);
                lib.addUserFromFile(studentBor);
            }
            catch(IOException e){
                
                System.out.println("Error loading file" + e);
            }
        }
        
        if(choice==2)
        {
            
            try {
                
                System.out.println("Please enter the name of the staff file" );
                String fileName = input.next();
                in = new BufferedReader(new FileReader(fileName+".txt"));
                staffBorrower = in.readLine();
                
                StringTokenizer st = new StringTokenizer(staffBorrower, ",");   // "," is the separator
                String firstName = st.nextToken();
                String lastName = st.nextToken();
                String title = st.nextToken();
                String dateOfBirth = st.nextToken();
                String homeAddress = st.nextToken();
                String phoneNumber = st.nextToken();
                int barCode = Integer.parseInt(st.nextToken());
                int staffId = Integer.parseInt(st.nextToken());
                
                StaffBorrower staffBor = new StaffBorrower(firstName, lastName, title, dateOfBirth,
                                                                homeAddress, phoneNumber, barCode, staffId);
                lib.addStaffFromFile(staffBor);
            }
            catch(IOException e){
                
                System.out.println("Error loading file" + e);
            }
        }
    }
    
    public void loadItemFile(int choice)
    {
        String bookItem;
        String dvdItem;
        
        if(choice==1)
        {
            try {
                
                System.out.println("Please enter the name of the book file" );
                String fileName = input.next();
                in = new BufferedReader(new FileReader(fileName+".txt"));
                bookItem = in.readLine();
                
                StringTokenizer st = new StringTokenizer(bookItem, ",");   // "," is the separator
                String itemCode = st.nextToken();
                String dueDate = st.nextToken();
                String libraryName = st.nextToken();
                String title = st.nextToken();
                String bookTitle = st.nextToken();
                String bookAuthor = st.nextToken();
                String bookPublisher = st.nextToken();
                int bookId = Integer.parseInt(st.nextToken());
                
                Book book = new Book(itemCode, dueDate, lib.libraryName, title, bookTitle, bookAuthor,
                                     bookPublisher, bookId);
                lib.addBookFromFile(book);
            }
            catch(IOException e){
                
                System.out.println("Error loading file" + e);
            }
        }
        
        if(choice==2)
        {
            try {
                
                System.out.println("Please enter the name of the book file" );
                String fileName = input.next();
                in = new BufferedReader(new FileReader(fileName+".txt"));
                dvdItem = in.readLine();
                
                StringTokenizer st = new StringTokenizer(dvdItem, ",");   // "," is the separator
                String itemCode = st.nextToken();
                String dueDate = st.nextToken();
                String libraryName = st.nextToken();
                String title = st.nextToken();
                String dvdTitle = st.nextToken();
                String dvdDirector = st.nextToken();
                double dvdLength = Double.parseDouble(st.nextToken());
                int dvdId = Integer.parseInt(st.nextToken());
                
                Dvd dvd = new Dvd(itemCode, dueDate, libraryName, title, dvdTitle, dvdDirector,
                                  dvdLength, dvdId);
                lib.addDvdFromFile(dvd);
            }
            catch(IOException e){
                
                System.out.println("Error loading file" + e);
            }
        }
    }

    /**main method*/
    public static void main(String[] args)
    {
        LibraryAdmin libAd = new LibraryAdmin(); //instantiates the class
        libAd.testSystem(); //and executes the method testSystem
    }
}