book_store_test.cpp

/*
This code is for CS214 project .
This code is represent the *Read & Think* Book store.
*/
#include<iostream>
#include<fstream>
#include<cstdlib>
#include<iomanip>
#include<conio.h>
#include <string.h>
#include <ctime>
#include<windows.h>
using namespace std;
// **********  GLOBAL STRUCTURE for File handling  *****************/

struct Node_File {
    int ISBN;
    char Book_name[30];
    char author[20];
    char category[20];
    float price;
};
// *******  GLOBAL STRUCTURE for Linked List in computer's memory *********/

struct Node_Comp {
    int ISBN;
    char Book_name[30];
    char author[20];
    char category[20];
    float price;
    struct Node_Comp *next;
};
//***************  GLOBAL  VARIABLES  ***************/
struct Node_Comp *Head = NULL;
int page_no;

/*********************  FUNCTIONS PROTOTYPES  ********************/
void info();
void LoadList();
void AddBook(void);
void DeleteBook(void);
void Search_for_Book(void);
void SaveList(void);
void DisplayList_of_Books(void);
void Heading(void);
SYSTEMTIME Time_now ;
void space(char s[]);   //to display a space in the output
void info();
/*************************MAIN FUNCTION****************************/

int main() {
    short int Choice = 0;
SYSTEMTIME Time_now ;
GetLocalTime(&Time_now);
    LoadList(); // This function will load all records from the file into Linked List

    while (true) {
cout <<"                \n\t\t**Read & Think**"<<endl ;
cout <<"               \t   Book store"<<endl ;
        cout << "                \n\t\t   Main Menu" << endl;
        cout << "                   ~~~~~~~~~" << endl;
        cout << "\n\n\t[1]  Add a New Book to the Store";
        cout << "\n\n\t[2] Delete a New Book from the Store ";
        cout << "\n\n\t[3]  Books List / Report ";
        cout << "\n\n\t[4]  Search for a Book ";
        cout << "\n\n\t[5]  Save Book  in the  File ";
        cout << "\n\n\t[6]  Info ";
        cout << "\n\n\t[7]  Exit Program";
        cout << "\n\n\n\t\tPlease,Enter your choice --> ";
        cin>>Choice;

        switch (Choice) {
            case 1:
                AddBook();
                break;
            case 2:

                DeleteBook();
                break;

            case 3: page_no = 0;
                DisplayList_of_Books();
                break;
            case 4:
                if (Head == NULL) {
                    cout << "Sorry,but we cannot search because the store is  empty! " << endl;
                    break;
                }
                Search_for_Book();
                break;

            case 5:
                SaveList();
                break;
            case 6:
                info();   //information function
                break;
            case 7:
                SaveList();
                cout << "\n\n\n GoodBye!!!\n";
                exit(0);
            default:
                cout << "\nInvalid Choice...";

        }

    }
    return 0;
} // end of main() function


void AddBook(void) {
    struct Node_Comp  *Prev,*Curr;

    struct Node_Comp *NewNode = new Node_Comp;

    cout << "\n\n\n\n\n\t\t Data for the Book \n\n";
    cout << " Enter ISBN: " << flush;
    cin >> NewNode->ISBN;

    cout << " Put the Book name : ";
    cin.ignore();
    cin.getline(NewNode->Book_name, 50);
    cout << "Put the author name : ";
    cin >> NewNode->author;
    cout << "Put the category  : ";
    cin >> NewNode->category;
    cout << "Enter Book price  : ";
    cin >> NewNode->price;
    NewNode -> next = NULL;

    if (Head == NULL) {
        Head = NewNode;
        return;
    } // this is to add first node in the list

    if (NewNode->ISBN < Head->ISBN) //  insert on top of linked list
    {
        NewNode->next = Head;
        Head = NewNode;
        return;
    }

    Prev = Curr = NULL;
    for (Curr = Head; Curr != NULL; Curr = Curr->next) {
        if (NewNode->ISBN < Curr->ISBN)
break;
        Prev = Curr;
    }

    NewNode->next = Prev->next;
    Prev->next = NewNode;
} // end of Add function

void space(char s[]){   //to display a space in the output
    int coun = 0 ,i=0;
while (s[i]!='\0' ){
    coun++;
   ++i;
}
int sp;
sp = 20-coun ;
for(sp;sp>0;sp--){cout <<" " ;}
}
void DeleteBook() {
    struct Node_Comp  *Prev,*Scan,*Curr;
    int data;

    if (Head == NULL) {
        cout << "Sorry,but your shop is empty " << endl;
        return;
    }

    /*for (Scan = Head; Scan != NULL; Scan = Scan->next) {
        cout<<"The Books in your store is "<<Head->ISBN<<endl ;}*/

    cout << " Enter ISBN of the Book to Delete : " << flush;
    cin>> data;
    if (data == Head->ISBN) {
        Head = Head->next;

        cout << "The Book *" << Head->Book_name << "* has been deleted !" << endl;
         return;
    }

    for (Scan = Head; Scan != NULL; Scan = Scan->next) {
        if (Scan->ISBN == data) {
break ;
           // cout << "The Book " << " " << Head->Book_name << " " << " has been deleted !" << endl;
          // return;
        }

        Prev = Scan;
    }
    if (Scan==NULL ) {
        cout << "Sorry, but the ISBN not found  in the list !" << endl;
    } else {
         cout << "The Book *" << Head->Book_name <<"* has been deleted !" << endl;
        Prev->next = Scan->next;
    }
}

void Search_for_Book(void) {  //to search
    struct Node_Comp  *Curr;
    int Look,I=0, choice;
    char Fname;
    char Look_category[20];

    while (true) {
        cout <<"\tSearch for Book by : "<<endl ;
        cout <<"\n\t[1]-ISBN "<<endl;
        cout <<"\n\t[2]-First Letter in the author name "<<endl ;
        cout <<"\n\t[3]-Category "<<endl;
        cout << "\n\tPlease,Enter your choice --> "<<flush ;
         cin>>choice ;
        switch (choice) {
            case 1:

                cout << "\tEnter the ISBN to Search :";
                cin >>Look;
                SaveList();
                for (Curr = Head; Curr != NULL; Curr = Curr->next) {
                  if (Curr->ISBN == Look) {

                        cout << Curr->ISBN << " " << Curr->Book_name <<"\t"<< "has been found " << endl;
                        cout << "\nThe Price is  " << Curr->price << " " << "Includes VAT !" << endl;

                    }I++;   }
                    if(Look<1){



                    cout <<"Book with ISBN "<<Look<<" "<<"not in your store !"<<endl ;
}

                break;
            case 2:

                cout<<"\tEnter the First letter in the author name ";
                cin>>Fname ;
                SaveList();
                 for(Curr=Head ; Curr!=NULL;Curr=Curr->next ){

                    if(Curr->author[0]==Fname){
                        cout <<Curr->author <<" "<< "has been found " <<endl ;
                        cout <<Curr->author<<" " <<"have the following Books";
                        cout <<"\n"<<Curr->Book_name<<endl;
Fname++;
                    }

                 }
                 if(Fname<1){cout <<"not"<<endl ;system("pause");}
                 system("pause"); break;



            case 3:
                cout << "\tEnter the category to Search :";
                cin >>Look_category;
                SaveList();
                for (Curr = Head; Curr != NULL; Curr = Curr->next) {
                    if (strcmp(Look_category,Curr->category )==0) {

                        cout << "\n\tForm The *" << Curr->category<< "*category"<<endl;

                        cout<<"\tThis Book has been found *" << Curr->Book_name << "* " << "has been found " << endl;
I++;

                    }
                }

           default:
                cout << "\nInvalid Choice...";
                 }
                system("pause");
                return;

        }
}
        void info() {
            cout << "\n\n\t~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~";
            cout << "\n\n\t#To add a new Book to the store: ";
            cout << "\n\n\t #The ISBN  at least more than  4 digit.";
            cout << "\n\n\t #For the author name should contain first letter of first name and all the last name.";
            cout << "\n\n\t#For the Category of Books most be one of the following :";
            cout << "\n\n\t[1]-Drama\t[2]-Math\t[3]-Art\t\t[4]-Science\t[5]-Comics ";
            cout << "\n\n\t#The price should be floating point ,Note that the price is (Includes VAT) !. ";
            cout << "\n\n\t~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~";


        }

        void SaveList(void) {
            ofstream pFile;
            pFile.open("Boo.dat", ios::binary);
            if (pFile == NULL) {
                cout << "Cannot Open File \n updated Data not saved into file\n\n";
                return;
            }

            struct Node_File NF; // structure variable to hold data for file
            struct Node_Comp *Curr;
            for (Curr = Head; Curr != NULL; Curr = Curr -> next) { // copy record from linked list into file record structure
                NF.ISBN = Curr->ISBN;
                strcpy(NF.Book_name, Curr -> Book_name);
                strcpy(NF.author, Curr->author);
                strcpy(NF.category, Curr->category);
                NF.price = Curr->price;

                pFile.write((char*) &NF, sizeof (NF)); // write record into file
            }
            pFile.close();

        }

        void LoadList() {
            ifstream piFile;
            piFile.open("Boo.dat", ios::binary);
            if (piFile == NULL) {
                cout << "File not Exist \n";
                return;
            }

            Node_File NF; // structure variable to hold data from file
            Node_Comp *NewNode; //  structure pointer to add data into linked list
            Node_Comp *Tail = NULL;

            // Read First Record from file
            piFile.read((char*) &NF, sizeof (NF));

            while (piFile) // if(pFile.eof( ))break;
            {
                NewNode = new Node_Comp; // create new node
                NewNode->ISBN = NF.ISBN;
                strcpy(NewNode -> Book_name, NF.Book_name);
                strcpy(NewNode->author, NF.author);
                strcpy(NewNode->category, NF.category);
                NewNode->price = NF.price;
                NewNode -> next = NULL;
                if (Head == NULL) {
                    Head = NewNode;
                    Tail = Head;
                } else {
                    Tail-> next = NewNode;
                    Tail = NewNode;
                }
                piFile.read((char*) &NF, sizeof (NF)); // read next record from file

            }
            piFile.close();
        }

        void DisplayList_of_Books(void) {
            if (Head == NULL) {
                cout << "\n\nSorry,but your store is empty ! ";
                cout << "\n Nothing to Display \n\n";
                return;
            }
            struct Node_Comp *Curr;
            int i = 0;

            Heading();

            for (Curr = Head; Curr != NULL; Curr = Curr -> next) {
                if (i % 20 == 0 && i != 0) {
                    cout << "\n\n Press a key for next Page: .... ";
                    Heading();
                }

                // print record
              cout <<"  "<<Curr->ISBN<<"\t\t"<<
              Curr->Book_name;
              space( Curr->Book_name);
              cout<<Curr->author;
               space( Curr->author);
               cout<<Curr->category;
                space( Curr->category);
            cout<<Curr->price;

cout << endl ;
                i++; // counter to control the page size
            } // end of while loop


            system("pause"); //  it use a  halt and need to press any key

        }

        void Heading() {
            system("cls"); // this statement clears the screen
            page_no++;
            // Print heading
            cout << "\t\t\t\tBook store  List \t\t  Page-No: " << page_no << "\t\t"<<Time_now.wHour<<endl ;
            cout << "\t\t\t\t~~~~~~~~~~~~~~~~~~~~~\n\n";
            cout << setw(10) << "   ID.  " << setw(20) << "     Book_Name       ";
            cout << setw(9) << " The Author " << setw(9) << " \t The category " << setw(9) << "  \tThe price ";

            cout << endl << endl;

        }