//	this file contains the interface for commandClass, which stores a list of students and
//	their media

#ifndef COMMAND_H
#define COMMAND_H

#include "studentClass.h"
#include "mediaClass.h"

const int MAX_MEDIA = 100;		//	max number of items that can be stored
const int MAX_STUDENTS = 100;	//	max number of students that can be stored

class commandClass
{
private:
	int numStudents,	//	valid length of studentArray
		numItems;		//	valid length of itemArray

	studentClass studentArray[MAX_STUDENTS];	//	stores students
	mediaClass itemArray[MAX_MEDIA];			//	stores items

	virtual bool found( const string ) const;		//	returns whether a student is in the array
	//	PARAMETERS:
	//		const string	MATCH		email address of student to find
	//	PRE-CONDITIONS
	//		none
	//	POST-CONDITIONS
	//		none
	//	RETURNS
	//		bool			whether student was found
	//	CALLS
	//		none
	//	CALLED BY
	//		commandClass::	add
	//						remove
	//						printSpecific
	virtual bool found( const mediaClass ) const;	//	returns whether media is in the array
	//	PARAMETERS:
	//		const mediaClass	MEDIA	media to be found
	//	PRE-CONDITIONS
	//		none
	//	POST-CONDITIONS
	//		none
	//	RETURNS
	//		bool			whether item was found
	//	CALLS
	//		none
	//	CALLED BY
	//		none
public:
//	MUTATORS:
	bool remove( const string );				//	removes a student and all associated media
	//	PARAMETERS:
	//		const string	EMAIL		email address of student to remove
	//	PRE-CONDITIONS
	//		none
	//	POST-CONDITIONS
	//		matching student and all his media has been removed
	//	RETURNS
	//		bool			whether student was found and removed
	//	CALLS
	//		commandClass::found
	//	CALLED BY
	//		main
	virtual bool add( const mediaClass& );		//	adds an item
	//	PARAMETERS:
	//		const mediaclass	ITEM		item to add
	//	PRE-CONDITIONS
	//		none
	//	POST-CONDITIONS
	//		item has been added
	//	RETURNS
	//		bool			whether add was successful
	//	CALLS
	//		commandClass::found
	//	CALLED BY
	//		main
	virtual bool add( const studentClass& );	//	adds a student
	//	PARAMETERS:
	//		const mediaclass	STUDENT		item to add
	//	PRE-CONDITIONS
	//		none
	//	POST-CONDITIONS
	//		student has been added if not duplicate
	//	RETURNS
	//		bool			whether add was successful
	//	CALLS
	//		commandClass::found
	//	CALLED BY
	//		main
//	ACCESSORS:
	string printStudents() const;				//	prints the student list
	//	PARAMETERS:
	//		none
	//	PRE-CONDITIONS
	//		none
	//	POST-CONDITIONS
	//		none
	//	RETURNS
	//		string				the student list
	//	CALLS
	//		studentClass:: <<
	//	CALLED BY
	//		main
	string printItems() const;					//	prints the item list
	//	PARAMETERS:
	//		none
	//	PRE-CONDITIONS
	//		none
	//	POST-CONDITIONS
	//		none
	//	RETURNS
	//		string				the item list
	//	CALLS
	//		mediaClass::	<<
	//	CALLED BY
	//		main
	string printSpecific( const string ) const;	//	prints the student data and all his media
	//	PARAMETERS:
	//		none
	//	PRE-CONDITIONS
	//		none
	//	POST-CONDITIONS
	//		none
	//	RETURNS
	//		string				the student's info and a list of his media
	//	CALLS
	//		studentClass::	<<
	//		mediaClass::	<<
	//						print
	//	CALLED BY
	//		main
//	CONSTRUCTORS:
	commandClass();								//	default constructor
	//	PARAMETERS:
	//		none
	//	PRE-CONDITIONS
	//		none
	//	POST-CONDITIONS
	//		object is initialized to blank
	//	RETURNS
	//		none
	//	CALLS
	//		none
	//	CALLED BY
	//		none
	commandClass( const char*, const char* );	//	constructer that takes two filenames
	//	PARAMETERS:
	//		const char*		STUDENT_FILE		filename of file containing student data
	//		const char*		ITEM_FILE			filename of file containing item data
	//	PRE-CONDITIONS
	//		none
	//	POST-CONDITIONS
	//		student list and item list have been read in from the given files
	//	RETURNS
	//		none
	//	CALLS
	//		commandClass::	add
	//	CALLED BY
	//		main
};

#endif