// lpatron.h
// ----------------------------------------------------------------------
// Do not modify this file.
// declares class LibraryPatron
// 
// CSE 143
// Homework 3
// http://www.cs.washington.edu/education/courses/143/00su/homework/
// 02 Jul 2000; Ken Yasuhara


#ifndef _LPATRON_H_
#define _LPATRON_H_


//////////////////////////////////////////////////////////////////////
// constants

const int MAX_NAME_LENGTH = 60;

// limit on number of books a patron can have checked out at a time
const int MAX_CHECKOUTS = 4;


//////////////////////////////////////////////////////////////////////
// class LibraryPatron 

class LibraryPatron {
public:  

  // 
  // constructors
  // 

  // all patrons initially have no books checked out

  // constructs patron w/ zero ID, null name
  LibraryPatron();		

  // given ID must be > 0, name must be nonnull
  LibraryPatron(int newID, char newName[]);


  //
  // accessors, related methods
  //

  // given a char array, copies this patron's name into the array;
  // assumes that the size of the argument array is sufficient to
  // store the copy
  void getName(char spaceForCopy[]); 

  // returns the patron's ID number; valid patron IDs are always > 0
  int getID();

  // given an int array, copies this patron's list of borrowed book
  // IDs into the array; see member variable borrowedBookIDs below;
  // assumes that the size of the argument array is sufficient to
  // store the copy
  void getBorrowedBooks(int bookIDs[MAX_CHECKOUTS]);

  // returns the number of books this patron currently has checked out
  int getBorrowedCount();

  // returns an int < 0 if this patron should come before otherPatron
  // when sorted in alphabetical order by name; returns 0 if patrons
  // have same name; returns an int > 0 if this patron should come
  // after otherPatron...
  int compare(LibraryPatron otherPatron);  


  // 
  // tracking borrowed books 
  // 

  // updates this patron's records to reflect that he/she has borrowed
  // or returned the book w/ the given ID
  void registerCheckOut(int bookID);
  void registerCheckIn(int bookID);

  // returns true only if this patron has not reached his/her limit on
  // the number of books which can be checked out at once
  bool canCheckOutMore();

  // returns true only if this patron 
  bool hasCheckedOut(int bookID);

  //
  // I/O
  //

  // prints this patron's ID number, name, and the IDs of the books
  // he/she has checked out
  void printRecord();


private:

  // 
  // member data
  // 
  
  char name[MAX_NAME_LENGTH];

  // positive for any valid patron
  int ID;
  
  // stores IDs of books checked out by this patron; all elements are
  // 0 if no books checked out; each checked out book has its ID
  // stored at exactly one index in this array; nonzero elements may
  // be separated by zero elements
  int borrowedBookIDs[MAX_CHECKOUTS];
};


#endif // _LPATRON_H_