//  Project 2 for CS 1704 Spring 2004
//
//  Programmer:    Robert Houtman
//  OS:            Windows XP Professional
//  Last modified: 24 FEB 2004
//
//  Purpose
//  This program reads a list of students and multimedia collections that
//	each student has.  
//
//  The program then gets commands from an input file to manage the 
//  database.

//This .cpp file holds all the implementations for the Info class

#include "Info.h"
#include <fstream>
#include <cassert>
#include <sstream>
#include <string>
using namespace std;


//////////////////////////////////////////////////////////////// Info()
// Constructs two default arrays with 100 members
//
// Parameters:
//   Students[100] an array that holds 100 student records
//	 Items[100] an array that holds 100 item records
//
// Pre:       none
//
// Post:      There will two 100 member arrays in the Info class, one with default student info
//			  and the other with default item info
//
// Returns:   none
//
// Called by: main()
// Calls:     StudInfo::StudInfo(), ItemInfo::ItemInfo()
//
Info::Info()
{
	int i=0; //variable used to control initialization

	//This while loop makes an array of 100 empty StudInfo classes and an array
	//of 100 ItemInfo classes
	while(i<100)
	{
		Students[i];
		Items[i];
		i++;
	}

}

//////////////////////////////////////////////////////////////// Info(ofstream &oFile)
// Constructs two arrays with 100 members, and fills as much of them in as possible based
// on the input file
//
// Parameters:
//   Students[100] an array that holds 100 student records
//	 Items[100] an array that holds 100 item records
//
// Pre:       none
//
// Post:      There will two 100 member arrays in the Info class, one with student info
//			  and the other with item info
//
// Returns:   none
//
// Called by: main()
// Calls:     StudInfo::StudInfo(iFile, oFile) 
//			  ItemInfo::ItemInfo(iFile, oFile)
//
void Info::FirstAddS(ofstream &oFile)
{
	ifstream iFile("students.data");
	assert(iFile);

	int i=0;//variable to control while statement
	bool complete=false; //variable to test if action was completed
	bool Ownertest=false; //variable to see if there is an owner field
	stringstream testOwner(stringstream::in|stringstream::out);
	string Owner;//variable to hold owner email
	string category; //variable to hold what information is included in the item description
	stringstream Input(stringstream::in | stringstream::out); //variable to hold all the input

	//This while loop gets all the information for the item and inserts it into a strinstream
	//so that it may be passed into the function to add it to the database
	getline(iFile, category, '\n');
	while(iFile)
	{
		while((category != "@@" || category != "@@ ") && category != "")
		{
			if(category == "@Name:" || category == "@Name: ")
			{
				string Name;
				getline(iFile, Name, '\n');
				Input << "N" << Name << "!";
			}
			else if(category == "@Phone Number:"||category == "@Phone Number: ")
			{
				string Phone;
				getline(iFile, Phone, '\n');
				Input << "P" << Phone << "!";
			}
			else if(category == "@E-mail:"||category == "@E-mail: ")
			{
				string Email;
				getline(iFile, Email, '\n');
				Input << "E" << Email << "!";
				Ownertest = true;
			}
			else if(category == "@Address Line 1:"||category == "@Address Line 1: ")
			{
				string Address1;
				getline(iFile, Address1, '\n');
				Input << "A" << Address1 << "!";
			}
			else if(category == "@Address Line 2:"||category == "@Address Line 2: ")
			{
				string Address2;
				getline(iFile, Address2, '\n');
				Input << "D" << Address2 << "!";
			}
			else if(category == "@City:"||category == "@City: ")
			{
				string City;
				getline(iFile, City, '\n');
				Input << "C" << City << "!";
			}
			else if(category == "@State:"||category == "@State: ")
			{
				string State;
				getline(iFile, State, '\n');
				Input << "S" << State << "!";
			}
			else if(category == "@Zipcode:" ||category == "@Zipcode: ")
			{
				string Zip;
				getline(iFile, Zip, '\n');
				Input << "Z" << Zip << " ";
			}
			else if(category == "@Other:"||category == "@Other: ")
			{
				string Other;
				getline(iFile, Other, '\n');
				Input << "O" << Other << "!";
			}
			getline(iFile, category, '\n');
		}
		Input << "@";

		//this while statement searches for an empty Student to add the information to
		//and then adds it 
		if(Ownertest == true)
		{
			if(Students[i].AddStudent(Input))
			{
				i++;
			}
		}
		Ownertest = false;
		getline(iFile, category, '\n');
	}

	iFile.close();
	ifstream inFile("items.data");
	assert(inFile);

	i=0;
	Ownertest=false; //variable to see if there is an owner field
	Input << "";

	//This while loop gets all the information for the item and inserts it into a stringstream
	//so that it may be passed into the function to add it to the database
	getline(inFile, category, '\n');
	while(inFile)
	{
		while((category != "@@"||category != "@@ ")&& category != "")
		{
			if(category == "@Item:"||category == "@Item: ")
			{
				string Item;
				getline(inFile, Item, '\n');
				Input << "I" << Item << "!";
			}
			else if(category == "@Media Type:"||category == "@Media Type: ")
			{
				string Media;
				getline(inFile, Media, '\n');
				Input << "M" << Media << "!";
			}
			else if(category == "@by:"||category == "@by: ")
			{
				string Artist;
				getline(inFile, Artist, '\n');
				Input << "A" << Artist << "!";
			}
			else if(category == "@Owner:"||category == "@Owner: ")
			{
				getline(inFile, Owner, '\n');
				Input << "O" << Owner << "!";
				Ownertest = true;
			}
			else if(category == "@Price:"||category == "@Price: ")
			{
				string Price;
				getline(inFile, Price, '\n');
				Input << "P" << Price << "!";
			}
			else if(category == "@Availability:"||category == "@Availability: ")
			{
				string Avail;
				getline(inFile, Avail, '\n');
				Input << "V" << Avail << "!";
			}
			getline(inFile, category, '\n');
		}
		Input << "E";

		//This if statement makes sure there is an Owner field and if there is it calls the
		//AddanItem function
		if(Ownertest == true)
		{
			bool complete = false;
			for(int j = 0; j<100; j++)
			{
				if (Students[j].Emailtest(Owner) && complete == false)
				{
					if(Items[i].AddanItem(Input))
					{
						complete = true;
						i++;
					}
				}
			}
		}
		Ownertest = false;
		getline(inFile, category, '\n');
	}
	inFile.close();
}

//////////////////////////////////////////////////////////////// AddStud(ifstream &iFile, ofstream &oFile)
// Adds a student to the next empty array member
//
// Parameters:
//   iFile - input stream to get student information from the input file
//   oFile - output stream to output whether the addition was a success or a failure
//
// Pre:       There is an empty Students array member
//			  There is an email address in the student being added
//
// Post:      A student will be added to the Students array
//
// Returns:   none
//
// Called by: main()
// Calls:     StudInfo::AddStudent(iFile) 
//
void Info::AddStud(ifstream &iFile, ofstream &oFile)
{
	int i=0;//variable to control while statement
	bool complete=false; //variable to test if action was completed
	bool Ownertest=false; //variable to see if there is an owner field
	string Owner;//variable to hold owner email
	string category; //variable to hold what information is included in the item description
	stringstream Input(stringstream::in | stringstream::out); //variable to hold all the input

	//This while loop gets all the information for the item and inserts it into a strinstream
	//so that it may be passed into the function to add it to the database
	getline(iFile, category, '\n');
	while((category != "@@" ||category != "@@ ") && category != "")
	{
		if(category == "@Name:"||category == "@Name: ")
		{
			string Name;
			getline(iFile, Name, '\n');
			Input << "N" << Name << "!";
		}
		else if(category == "@Phone Number:"||category == "@Phone Number: ")
		{
			string Phone;
			getline(iFile, Phone, '\n');
			Input << "P" << Phone << "!";
		}
		else if(category == "@E-mail:"||category == "@E-mail: ")
		{
			string Email;
			getline(iFile, Email, '\n');
			Input << "E" << Email << "!";
			Ownertest = true;
		}
		else if(category == "@Address Line 1:"||category == "@Address Line 1: ")
		{
			string Address1;
			getline(iFile, Address1, '\n');
			Input << "A" << Address1 << "!";
		}
		else if(category == "@Address Line 2:"||category == "@Address Line 2: ")
		{
			string Address2;
			getline(iFile, Address2, '\n');
			Input << "D" << Address2 << "!";
		}
		else if(category == "@City:"||category == "@City: ")
		{
			string City;
			getline(iFile, City, '\n');
			Input << "C" << City << "!";
		}
		else if(category == "@State:"||category == "@State: ")
		{
			string State;
			getline(iFile, State, '\n');
			Input << "S" << State << "!";
		}
		else if(category == "@Zipcode:"||category == "@Zipcode: ")
		{
			string Zip;
			getline(iFile, Zip, '\n');
			Input << "Z" << Zip << " ";
		}
		else if(category == "@Other:"||category == "@Other: ")
		{
			string Other;
			getline(iFile, Other, '\n');
			Input << "O" << Other << "!";
		}
		getline(iFile, category, '\n');
	}
	Input << "@";

	//this while statement searches for an empty Student to add the information to
	//and then adds it 
	if(Ownertest == false)
	{
		oFile << "Failure\n";
	}
	else
	{
		i = 0;
		while(i<100 && complete == false)
		{
			if (!Students[i].fulloremptytest())
			{
				if(Students[i].AddStudent(Input))
				{
					oFile << "Success\n";
					complete = true;
				}	
			}
			else
			{
				i++;	
			}
		}
		if(complete == false)
		{
			oFile << "Failure\n";
		}
	}
}

//////////////////////////////////////////////////////////////// AddItem(ifstream &iFile, ofstream &oFile)
// Adds an item to the next empty array member
//
// Parameters:
//   iFile - input stream to get item information from the input file
//   oFile - output stream to output whether the addition was a success or a failure
//
// Pre:       There is an empty Items array member
//			  The email address exists in the Students array
//
// Post:      An item will be added to the Items array
//
// Returns:   none
//
// Called by: main()
// Calls:     StudInfo::AddanItem(iFile) 
//
void Info::AddItem(ifstream &iFile, ofstream &oFile)
{
	int i=0,
		j=0;//variables to control while statements
	bool complete=false; //variable to test if action was completed
	bool Ownertest=false; //variable to see if there is an owner field
	string Owner;//variable to hold owner email
	string category; //variable to hold what information is included in the item description
	stringstream Input(stringstream::in | stringstream::out); //variable to hold all the input

	//This while loop gets all the information for the item and inserts it into a stringstream
	//so that it may be passed into the function to add it to the database
	getline(iFile, category, '\n');
	while((category != "@@" ||category != "@@ ")&& category != "")
	{
		if(category == "@Item:"||category == "@Item: ")
		{
			string Item;
			getline(iFile, Item, '\n');
			Input << "I" << Item << "!";
		}
		else if(category == "@Media Type:"||category == "@Media Type: ")
		{
			string Media;
			getline(iFile, Media, '\n');
			Input << "M" << Media << "!";
		}
		else if(category == "@by:"||category == "@by: ")
		{
			string Artist;
			getline(iFile, Artist, '\n');
			Input << "A" << Artist << "!";
		}
		else if(category == "@Owner:"||category == "@Owner: ")
		{
			getline(iFile, Owner, '\n');
			Input << "O" << Owner << "!";
			Ownertest = true;
		}
		else if(category == "@Price:"||category == "@Price: ")
		{
			string Price;
			getline(iFile, Price, '\n');
			Input << "P" << Price << "!";
		}
		else if(category == "@Availability:"||category == "@Availability: ")
		{
			string Avail;
			getline(iFile, Avail, '\n');
			Input << "V" << Avail << "!";
		}
		getline(iFile, category, '\n');
	}
	Input << "E";

	//This if statement makes sure there is an Owner field and if there is it calls the
	//AddanItem function
	if(Ownertest == false)
	{
		oFile << "Failure\n";
	}
	else
	{
		i = 0;
		for(i = 0; i < 100; i++)
		{
			if (Students[i].Emailtest(Owner) && complete == false)
			{
				j = 0;
				while(j<100 && complete == false)
				{
					if(!Items[j].fulloremptytest())
					{
						if(Items[j].AddanItem(Input))
						{
							oFile << "Success\n";
							complete = true;
						}
					}
					j++;
				}
			}
		}
		if(complete == false)
		{
			oFile << "Failure\n";
		}
	}
}

//////////////////////////////////////////////////////////////// Delete(string email, ofstream &oFile)
// Removes the student, and his/her item(s), with the given email address
//
// Parameters:
//   email - email address of student to be deleted
//   oFile - output stream to output whether the addition was a success or a failure
//
// Pre:       The email address exists in the Students and Items arrays
//
// Post:      The student's information and his/her item(s) will be removed from the database
//
// Returns:   none
//
// Called by: main()
// Calls:     StudInfo::RemoveStudent(email)
//			  ItemInfo::RemoveItem(email)
//
void Info::Delete(string email, ofstream& oFile)
{
	int i=0,	//controls student searching while loop
		j=0;	//controls item searching while loop
	bool complete = false; //variable to test if action was completed

	while(i<100 && complete == false)
	{
		if(Students[i].Emailtest(email))
		{
			Students[i].RemoveStudent();

			while(j<100)
			{
				if(Items[j].Email(email))
				{
					Items[j].RemoveItem();
				}
				j++;
			}
			complete = true;
		}
		i++;
	}
	if(complete == false)
	{
		oFile << "Failure\n";
	}
	else
	{
		oFile << "Success\n";
	}
}

//////////////////////////////////////////////////////////////// Print(ofstream &oFile, string command)
// Prints information requested in the command.data input file
//
// Parameters:
//   command - determines what is to be printed
//   oFile - output stream to output whether the addition was a success or a failure
//
// Pre:       The email address exists in the Students and Items arrays(for specific printing)
//
// Post:      The student's information and his/her item(s) will be printed to the output file
//			  Or all the students/items will be printed to the output file
//
// Returns:   none
//
// Called by: main()
// Calls:     StudInfo::PrintStudent(email)
//			  ItemInfo::PrintItem(email)
//
void Info::Print(ofstream& oFile, string command)
{
	int i=0;		//controls while loops
	bool complete=false;	//control to test if print was successful

	//This if else if statement calls the print function for the requested class
	if(command == "students")
	{
		while(i<100)
		{
			if(Students[i].fulloremptytest())
			{
				Students[i].PrintStudent(oFile);
				i++;
			}
			else
			{
				i++;
			}
		}
	}
	else if(command == "items")
	{
		while(i<100)
		{
			if(Items[i].fulloremptytest())
			{
				bool All = true;
				Items[i].PrintItem(oFile, All);
			}
			i++;
		}
	}
	else
	{
		string email = command;	//allows email string to be passed into the email checking function
						//for both the StudInfo and ItemInfo classes

		//This while loop prints the information of the student with the given email address
		i = 0;
		while(i < 100)
		{
			if(complete == false)
			{
				if(Students[i].Emailtest(email))
				{
				Students[i].PrintStudent(oFile);
				complete = true;
				}
			}
			i++;
		}

		//This while loop prints all items that are owned by the student with the given email
		//address
		for(i = 0; i < 100; i++)
		{
			if(Items[i].Email(email))
			{
				bool All = false;
				Items[i].PrintItem(oFile, All);
			}
		}
		if(complete == false)
		{
			oFile << email << " not found.\n";
		}
	}
}