/*
My name is Scott McIrvin, I wrote this stuff and the bookclass.h include thing
It is a tad bit thrown together, just because another class also needed a program wrote :(
*/
#include <iostream>
#include <fstream>
#include <conio.h>

#include "bookclass.h"

using namespace std;

void nofile();
void main_menu();
void exit_screen();
void error();

int  searchedbook;

void main()
{
	ifstream infile;
	infile.open("datafile.txt");

	if(!infile)
		nofile();
	else
	{
		int inputsize;

		infile >> inputsize;

	  	booktype *book;
		book = new booktype [SIZE];

		int inputcount, subcount;
	
		for(inputcount = 0; inputcount < inputsize; inputcount++)
		{
			infile >> book[inputcount].btitle;
	
			infile >> book[inputcount].inputauthors;
			book[inputcount].authorarray = new string [AUTHORS];
	
			for(subcount = 0; subcount < book[inputcount].inputauthors; subcount++)
			{
				infile >> book[inputcount].authorarray[subcount];
			}
	
			infile >> book[inputcount].bpublisher;
			infile >> book[inputcount].bisbn;
			infile >> book[inputcount].bprice;
			infile >> book[inputcount].bstock;
		} // data is loaded in from infile

		infile.close();
		ofstream outfile;
		outfile.open("output.txt");

		bool quit;
		int main_selection;



		do
		{
			char setchoice;
			bool changequit = false;
			char change;
			string testisbn;
			string testtitle;
			string testauthor;
			bool exit = false;
			bool found = false;
			int count = 0;
			string testpub;

			main_menu();
			cin >> main_selection;

			switch(main_selection)
			{
				case 1: system("cls");
						cout << "search by title" << endl << endl;
						cout << "please put in the title -> ";
						cin >> testtitle;
						cin.ignore(100, '\n');
						while(exit == false)
						{
							exit = false;
							exit = book[count].setequaltitle(testtitle);

							if(exit == true)
							{
								searchedbook = count;
								found = true;
							}
							count++;
							if(count == inputcount) exit = true;
						}

						quit = false;
						break;
				case 2: system("cls");
						cout << "search by author" << endl << endl;
						cout << "please put in an author -> ";
						cin >> testauthor;
						cin.ignore(100, '\n');
						while(exit == false)
						{
							exit = false;
							exit = book[count].setequalauthor(testauthor);

							if(exit == true)
							{
								searchedbook = count;
								found = true;
							}
							count++;
							if(count == inputcount) exit = true;
						}

						quit = false;
						break;
				case 3: system("cls");
						cout << "search by publisher" << endl << endl;
						cout << "please input a publisher -> ";
						cin >> testpub;
						cin.ignore(100, '\n');
						while(exit == false)
						{
							exit = false;
							exit = book[count].setequalpub(testpub);

							if(exit == true)
							{
								searchedbook = count;
								found = true;
							}
							count++;
							if(count == inputcount) exit = true;
						}

						quit = true;
						break;
				case 4: 
						system("cls");
						
						cout << "Search by ISBN" << endl << endl;
						cout << "Please provide an ISBN number: ";
						cin >> testisbn;
						while(exit == false)
						{
							exit = false;
							exit = book[count].setequalisbn(testisbn);
							
							if(exit == true)
							{
								searchedbook = count;
								found = true;
							}
							count++;
							if(count == inputcount) exit = true;
						}
									
						quit = false;
						break;
				case 5: exit_screen();

						for(inputcount = 0; inputcount < inputsize; inputcount++)
						{
							outfile << "Book #" << (inputcount + 1) << "." << endl;
							outfile << "Title: " << book[inputcount].btitle << endl;
							outfile << "Author: ";
							for(subcount = 0; subcount < book[inputcount].inputauthors; subcount++)
							{
								outfile << book[inputcount].authorarray[subcount] << " ";
								if( subcount != book[inputcount].inputauthors-1)
									outfile << "and ";
								}
							outfile << endl;
							outfile << "Publisher: " << book[inputcount].bpublisher << endl;
							outfile << "ISBN: " << book[inputcount].bisbn << endl;
							outfile.setf(ios::fixed);
							outfile.setf(ios::showpoint);
							outfile.precision(2);
							outfile << "Price: $" << book[inputcount].bprice << endl;
							outfile << "Amount in stock: " << book[inputcount].bstock << endl << endl;
						}

						quit = true;
						break;
				default:error();
						quit = false;
			}

			if(found == true)
						{
							while(changequit == false)
							{
								system("cls");
								cout << "The book was found" << endl;
								book[searchedbook].showbook();
								cout << endl;
								cout << "Would you like to change anything about this record? (Y/N) -> ";
								cin >> change;
								cin.ignore(100, '\n');

								switch(change)
								{
								case 'y':
								case 'Y':
									system("cls");
									book[searchedbook].showbook();
									cout << endl;
									cout << "ok which one would you like to change" << endl;
									cout << "1. the title" << endl;
									cout << "2. the authors" << endl;
									cout << "3. the publisher" << endl;
									cout << "4. the isbn" << endl;
									cout << "5. the price" << endl;
									cout << "6. the stock available" << endl;
									cout << "choose one (1-6) -> ";
									cin >> setchoice;
									cin.ignore(100, '\n');
									switch(setchoice)
									{
									case '1':book[searchedbook].settitle();
										break;
									case '2':book[searchedbook].setauthor();
										break;
									case '3':book[searchedbook].setpub();
										break;
									case '4':book[searchedbook].setisbn();
										break;
									case '5':book[searchedbook].setprice();
										break;
									case '6':book[searchedbook].updatestocknum();
										break;
									default:
										system("cls");
										cout << "let's try again....";
										getch();
										changequit = false;
									}


									break;
								case 'n':
								case 'N': changequit = true;
									system("cls");
									cout << "back to main menu then";
									getch();

									break;
								default: changequit = false;
									system("cls");
									cout << "let's try doing this right";
									getch();
								}
							}

						}
						else
						{
							if(main_selection != 5)
							{
								system("cls");
								cout << "The book was not found, back to main menu";
								getch();
							}
						}
		}while(quit == false);



		outfile.close();

		delete [] book;
	}

	getch();
}


void nofile()
{
	system("cls");
	cout << "There is no input file!" << endl;
}

void main_menu()
{
	system("cls");
	cout << "Please choose how you would like to pull up a book." << endl << endl;
	cout << "1. Search by Title" << endl;
	cout << "2. Search by Author" << endl;
	cout << "3. Search by Publisher" << endl;
	cout << "4. Search by ISBN" << endl;
	cout << "5. Quit the program" << endl << endl;
	cout << "Please choose an option: ";
}





void exit_screen()
{
	system("cls");
	cout << "we are done";

}

void error()
{
	system("cls");
	cout << "There was an error, please press a key and try again.";
	getch();
}