Simple_Library_System

#include<iostream>
#include<string>
using namespace std;


string addRecord()
{
string info1, info2;
cin>>info1; info2=info1; getline(cin,info1);
info1 =info2+info1;
return info1;
}



void displayRecord(string input[20][5],int j){
     int l;
     cout<<input [j][0]<<"\t\t"<<input[j][1]<<"\t";
     l = input[j][1].size();
     if(l<=15&&l>=8)
     cout<<"\t";
     else if(l<8)
     cout<<"\t\t";

     cout<<input [j][2]<<"\t";
     l = input[j][2].size();
     if(l<=15&&l>=8)
     cout<<"\t";
     else if(l<8)
     cout<<"\t\t";
     cout<<input [j][3];
     cout<<"\n";
     }

void edit(string input[20][5], int record)
{
string pk;
int z=-1,x;
 cout<<"Enter Book code: ";
  cin>>pk;

do{
  z++;
  if(z > record)
  {
  cout<<"\nBook code not found\n";
  break;
  }
  } while(input[z][0] != pk);

if(input[z][0] == pk)
  for(x=1;x<3;x++)
  {
  if(x==1)cout<<"\nNew Book Title: ";
  if(x==2)cout<<"New Book Author: ";
  input[z][x] = addRecord();
  }
}

int main(){

    int numRecord=0,i,z;
    string input[20][5], borrow;
    char ch,again;
do{
    system("cls");
    cout<<"\t\t\t  ****Simple Library System**** "<<endl;
    cout<<"\n--------------------------------------------------------------------------------";
    cout<<"\n[1] - Add Book"<<endl;
    cout<<"[2] - Display"<<endl;
    cout<<"[3] - Edit"<<endl;
    cout<<"[4] - Borrow"<<endl;
    cout<<"[5] - Delete"<<endl;
    cout<<"[6] - Quit"<<"\n\nChoice: ";

    cin>>ch;

    switch(ch){

    case '1':{
         do{
             numRecord++;
                       system("cls");
                       cout<<"--------------------------------------------------------------------------------\n\t\t\t\t     Add Book\n--------------------------------------------------------------------------------";


                       do{
                       cout<<"\nBook Code: ";
                       input[numRecord-1][0]=addRecord();
                       z=-1;
                       if(numRecord==1)
                       break;
                       do{
                       z++;
                       if(z > numRecord-3)
                       break;
                       }while(input[z][0] != input[numRecord-1][0]);

                       if(input[z][0] == input[numRecord-1][0])
                       cout<<"Book Code already exist";


                         }while(input[z][0] == input[numRecord-1][0]);


                       cout<<"Book Title: ";
                       input[numRecord-1][1]=addRecord();
                       cout<<"Author: ";
                       input[numRecord-1][2]=addRecord();
                       input[numRecord-1][3]="Available";
do{
             cout<<"Enter Again? [Y][N]: ";
             cin>>again;
             }
             while (again!='y' &&
              again!='n');
             }
             while (again=='y');
              break;
    }

    case '2': {
         system("cls");
         cout<<"-----------------------------------------------";
         cout<<"\n\t\t +-+Display Book+-+";
         cout<<"\n-----------------------------------------------";
         cout<<"\nBook Code\tBook Title\t\tAuthor\t\t\tStatus"<<endl;
         for(int y=0;y<numRecord;y++)
         displayRecord(input,y);
         break;
         }

    case '3': {
         do{
         system("cls");
        cout<<"\t\t  - - - - - - - Edit Book - - - - - - - -"<<endl<<endl;
          cout<<"Book Code\tBook Title\t\tAuthor\t\t\tStatus"<<endl;
           for(int y=0;y<numRecord;y++)
            {
             displayRecord(input,y);
               }
               cout<<endl;
               edit(input,numRecord);

do{
cout<<"\nEdit another.?(y/n): ";
cin>>again;
if(again!='y'&&again!='n') cout<<"\nInvalid Input\n\n";
}while(again!='y'&&again!='n');

}while(again=='y');
         break;
         }

    case '4': {
         do{
         system("cls");
         cout<<"\t\t  - - - - - - - Borrow Book - - - - - - - -"<<endl;
         cout<<"Book Code\tBook Title\t\tAuthor\t\t\tStatus\t\t"<<endl;
         for(int y=0;y<numRecord;y++)
         displayRecord(input,y);

         z=-1;
         cout<<"\nBook Code: ";
         cin>>borrow;

         do{
                     z++;
                     if (z>numRecord){
                                     cout<<"\nBook Not Found"<<endl;
                                     break;
                                     }

                     }while (input[z][0] != borrow);
                     if (input[z][0] == borrow){
                                     if(input[z][3]!="Borrowed")
                                     {
                                     input[z][3] = "Borrowed";
                                     cout<<"\nBorrowing Successful! ^^"<<endl;
                                     }
                                     else
                                         cout<<"\nBook Already Borrowed! :("<<endl;

                                     }
         do{
             cout<<"Enter Again? [Y][N]: ";
             cin>>again;
             }
             while (again!='y' &&
              again!='n');
             }
             while (again=='y');
         break;
         }

    case '5': {
         system("pause");
         return 0;
         }
default:cout<<"\nWhy are you trying to input what is not in the choice? ;)\nPlease enter again...\n"<<endl;
                     }
system("pause");
                }
    while (ch !=3);

    return 0;
    }