library management system 2

#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<stdlib.h>
#include<windows.h>


// profile structure
struct profile {
    char name[100];
    char firstname[40];
    char lastname[40];
    char address[40];
    long long int phoneNumber;
    int userID ;

};
//books structure
struct books
{
    char yourname[40];
    char bookname[40];
    int issuemonth;
    long long int day,month,year;
    int issueday;
    int issueyear;
    int bookID;
    int submitmonth;
    int submitday;
    int submityear;
};

//Functions List
void mainMenu();
void adduser();
void deluser();
void edituser();
void listuser();
void searchuser();
void adminlogin();

void booksection();
void addbook();
void listbook();
void searchbook();
void delbook();
void editbook();
void issuebook();

//main function.
int main()
{
    system("color f");  //sets system color to bright white.
  adminlogin();
   return 0;
}

void adminlogin()   //sets up admin login window.
{
    int i=0;
    char aa[20],ch;
    char password[30];
    char username[30];
    start:
   printf("\t\t\t..............................................\n");
    printf("\t\t\t\t\t[ADMIN LOGIN]                \n\n");
    printf("\t\t\tEnter your username: ");
    scanf("%s",username);
     printf("\t\t\tEnter your password: ");
    while(ch!=13)
   {
 ch=_getch();

 if(ch!=13){
 putch('*');
 password[i] = ch;
 i++;
 }
   }
   password[i] = '\0';


    if(strcmp(username,"a")==0){

   if(strcmp(password,"b")==0)
   {
       printf("\n\n");
       char loading[]="\t\t\t\tloading.....................................!!\n";
        while(loading[i]!='\0')
    {
        Sleep(50);
        printf("%c",loading[i]);
        i++;
    }


        printf("\n                                      Login Success!!\n\n");
        printf("\n                                Enter any key to continue! \n\n");
        _getch();
        mainMenu();
    }
   else{
        printf("\n\n");
       printf("\t\t\t..............................................\n");

    printf("\n                                      Wrong Password!!\n\n");
    remsk:
        printf("\n");
    printf("\t\t\tWould you like to try again?[yes?/no?]: ");
    scanf("%s",aa);

    if (strcmp(aa,"yes")==0)
     {
        system("cls");   //clears the screen before proceeding to the next step.
      adminlogin();

}
        if (strcmp(aa,"no")==0)
        {
           exit(0);
        }
        else if(1)
        {
            system("cls");
            printf("\n");
            printf("\t\t\tInvalid choice. Enter [yes/no] only!");
            goto remsk;
        }

}
    }else{
        printf("\n\n");
       printf("\t\t\t..............................................\n");
    printf("\n                                     User doesn't exist!\n\n\n\n");
   goto remsk;
}

_getch();
mainMenu();
}

//For Main Menu
void mainMenu(){
    system("color E");//yellow
    system("cls");
    printf("\t\t\t...........................................\n");
    printf("\t\t\t:\t\t[MAIN MENU]\t          :\n");
    printf("\t\t\t:.........................................:\n");
    printf("\n\n\n\t\t\t1.Register user\n\t\t\t2.List users\n\t\t\t3.Edit user\n\t\t\t4.Delete User\n\t\t\t5.Search user\n\t\t\t6.Book section\n\t\t\t7.Exit\n");
    printf("\t\t\tPress (1-7)\n");
    printf("                       ..............................................\n");
    switch(_getch()){
        case '1': adduser();
                  break;
        case '2': listuser();
                  break;
        case '3': edituser();
                  break;
        case '4': deluser();
                  break;
        case '5': searchuser();
                  break;
        case '6': booksection();
                  break;
        case '7': exit(0);
                  break;
        default:

            printf("\nEnter any key to try again.");
            _getch();
system("cls");
    mainMenu();

    }
}

// For Adding New users
void adduser(){



    struct profile b;
     int i,g,j;
    FILE *f;
    f=fopen("frecord.txt","ab");
    system("cls");
    printf("\t\t\t...........................................\n");
    printf("\t\t\t:\t\t[USER REGISTER]\t          :\n");
     printf("\t\t\t...........................................\n");

 printf("\t\t\t\tEnter first and last name: ");
    scanf("%s %s",b.firstname,b.lastname);
      fflush(stdin);
name1:
strcat(b.firstname," ");
   strcat(b.firstname,b.lastname);
   for (j=0;b.firstname[j]!='\0';++j)
      {
   b.name[j]=b.firstname[j];
      }
      b.name[j]='\0';

   for (j=0;b.name[j]!='\0';++j)
      {
      if (b.name[j]>='0' && b.name[j]<='9')
      {
          printf("\n");
          printf("\t\t\t\tInvalid name\n");
           printf("\t\t\t\tEnter name again: ");
    scanf("%s %s",b.firstname,b.lastname);
      fflush(stdin);
      goto name1;
          break;
      }
      }

    printf("\t\t\t\tEnter address: ");
    scanf("%s",&b.address);
    fflush(stdin);
    printf("\t\t\t\tEnter phone number: ");
    scanf("%lld",&b.phoneNumber);
    fflush(stdin);
    chck:
    if (b.phoneNumber<=9999999999 && b.phoneNumber>=99999999)
    {

     printf("\t\t\t\tEnter UserID: ");
    scanf("%d",&b.userID);
    fflush(stdin);
    }

    else
    {
        printf("\n\t\t\t\tInvalid phone number!\n");
        printf("\t\t\t\tEnter new phone number: ");
    scanf("%lld",&b.phoneNumber);
    fflush(stdin);
    goto chck;
    }

         printf("                        ............................................\n");
    fwrite(&b, sizeof(b), 1, f);
     fclose(f);

      printf("\nRecord Saved!\n");

          printf("\n\n");
      printf("Would you like to add more user? [y/n]: ");
            readd:
      i=_getch();
      if (i=='y')
            {
          adduser();
                }
        if (i=='n')
            {
     printf("\nEnter any key to go back!");
    _getch();
    system("cls");
    mainMenu();
                }
                else if(1)
                {
                  goto readd;
                }

}

//Listing users profile
void listuser(){


    struct profile b;

    FILE *f;
    f=fopen("frecord.txt","rb"); //binary read mode
    system("cls");
    if (f==NULL){
        printf("\nERROR OPENING FILE, THE RECORD FILE DOES NOT EXIST!!!");
        getch();
        mainMenu();
    }
    printf("\t\t\t..................................................\n");
    printf("\t\t\t:\t\t[LIST USERS PROFILE]             :\n");
    printf("\t\t\t:................................................:\n");

    while(fread(&b,sizeof(b),1,f)==1){
    printf("\nName: %s\nAddress: %s\nMobile no: %lld\nUser ID: %d\n\n",b.name,b.address,b.phoneNumber,b.userID);
    }
printf("............................................\n");
    fclose(f);

    printf("\nEnter any key to go back!");
    _getch();
    system("cls");
    mainMenu();
}

//Editing profile
void edituser(){
    int id;
    int found;
   int e,j;


    printf("                        ............................................\n");
    printf("\t\t\t\t\t  [EDIT USER]\n\n");


    struct profile b;

    FILE *fp;
    FILE *ftemp;
    fp = fopen("frecord.txt","rb");
    ftemp = fopen("ftemprecord.txt","wb");
     system("cls");
    printf("\t\t\tEnter Users ID to modify: ");
    scanf("%d",&id);
    fflush(stdin);
  printf("\n");
    while(fread(&b,sizeof(b),1,fp)==1){
            if(id!=b.userID)
                fwrite(&b,sizeof(b),1,ftemp);
            if(id==b.userID){
                found = 1;
            }
    }
    if (found == 1){
  printf("\t\t\t\tEnter first and last name: ");
    scanf("%s %s",b.firstname,b.lastname);
      fflush(stdin);
name1:
strcat(b.firstname," ");
   strcat(b.firstname,b.lastname);
   for (j=0;b.firstname[j]!='\0';++j)
      {
   b.name[j]=b.firstname[j];
      }
      b.name[j]='\0';

   for (j=0;b.name[j]!='\0';++j)
      {
      if (b.name[j]>='0' && b.name[j]<='9')
      {
          printf("\n");
          printf("\t\t\t\tInvalid name\n");
           printf("\t\t\t\tEnter name again: ");
    scanf("%s %s",b.firstname,b.lastname);
      fflush(stdin);
      goto name1;
          break;
      }
      }
    printf("\t\t\t\tEnter address: ");
    scanf("%s",&b.address);
    fflush(stdin);
    printf("\t\t\t\tEnter phone number: ");
    scanf("%lld",&b.phoneNumber);
    fflush(stdin);
    chck:
    if (b.phoneNumber<=9999999999 && b.phoneNumber>=9999999)
    {
     printf("\t\t\t\tEnter UserID: ");
    scanf("%d",&b.userID);
    fflush(stdin);
    }
    else
    {
        printf("\n\t\t\t\tInvalid phone number!\n");
        printf("\t\t\t\tEnter new phone number: ");
    scanf("%lld",&b.phoneNumber);
    fflush(stdin);
    goto chck;
    }
        fwrite(&b,sizeof(b),1,ftemp);
    }else if(found!=1){
        printf("The contact does not exist!");
    }



    fclose(fp);
    fclose(ftemp);
    remove("frecord.txt");
    rename("ftemprecord.txt","frecord.txt");

    printf("\n\nEnter any key to go back!");
    _getch();
    system("cls");

    mainMenu();

}

//Searching profile
void searchuser(){
    int id;
    int de,c;
    struct profile b;

    FILE *fp;
    fp=fopen("frecord.txt","rb");

    system("cls");
    printf("\t\t\t\t   LIBRARY MANAGEMENT SYSTEM\n\n\n");
    printf("\t\t\t...........................................\n");
    printf("\t\t\t:\t\t[SEARCH USER]\t          :\n");
    printf("\t\t\t:.........................................:\n\n");
    printf("\t\t\tEnter Users ID to search: ");
    scanf("%d",&id);
    printf("\n\n");
    fflush(stdin);
printf("\n");
    while (fread(&b,sizeof(b),1,fp)==1)
    {
        if (id==b.userID){

        printf("\n[%s Profile ID]\n",b.name);
    printf("\nName: %s\nAddress: %s\nMobile no: %lld\nUser ID: %d\n\n",b.name,b.address,b.phoneNumber,b.userID);
    de=1;
}
    }
if (de==1)
{

    printf("\n\n");
    printf("Would you like to search another user?[y/n]: ");
     research:
    c=_getch();
    if (c=='y')
    {
        searchuser();
            }
            if (c=='n')
            {
                printf("\n\n");
              printf("\n\nEnter any key to go back!");

    _getch();
    system("cls");
    mainMenu();
            }
            else if(1)
            {
                goto research;
            }

}
if (de!=1)
{
    printf("\t\t\t\t\t*INVALID USER*");
    printf("\n\nEnter any key to go back!");

    _getch();
    system("cls");
    mainMenu();

}
fclose(fp);
}




//Deleting profile
void deluser(){
    char name[20];
    int recordExists,id;

    system("cls");
    fflush(stdin);

    struct profile b;

    FILE *fp;
    FILE *ftemp;

    fp = fopen("frecord.txt","r");
    ftemp = fopen("ftemprecord.txt","w");

    printf("\t\t\t...........................................\n");
    printf("\t\t\t:\t\t[DELETE USER]\t          :\n");
    printf("\t\t\t:.........................................:\n\n");
    printf("\t\t\tEnter Users ID to delete: ");
    scanf("%d",&id);
    fflush(stdin);
    printf("\n");

    while (fread( &b, sizeof(b), 1, fp) == 1) {
        if (id!=b.userID)
          fwrite(&b, sizeof(b), 1, ftemp);
        if (id==b.userID)
          recordExists = 1;
    }

    fclose(fp);
    fclose(ftemp);

    if(recordExists!=1){
        printf("The contact does not exist!");
    }else{
        remove("frecord.txt");
        rename("ftemprecord.txt", "frecord.txt");
        printf("\t\tRECORD DELETED SUCCESSFULLY.");
    }

    printf("\n\nEnter any key to go back!");
    _getch();
    system("cls");

    mainMenu();
}

void booksection()
{
     system("cls");
     system("color A");
    printf("\t\t\t.............................................\n");
    printf("\t\t\t:\t\t[BOOK SECTION]\t            :\n");
    printf("\t\t\t:...........................................:\n\n");
    printf("\t\t\t1.Add book\n\t\t\t2.List Book\n\t\t\t3.Search Book\n\t\t\t4.Delete book\n\t\t\t5.Edit Book\n\t\t\t6.Issue Book\n\t\t\t7.Exit\n\t\t\t8.Go back\n");
    printf("\t\t\tPress (1-8)\n");
    printf("                       ..............................................\n");

    switch(_getch()){
        case '1': addbook();
                  break;

        case '2':listbook();
                  break;

        case '7':exit(0);
                  break;

        case '8': mainMenu();
                 break;
        default:

            printf("\nEnter any key to try again.");
            _getch();
system("cls");
booksection();
}
}
//add books in the library
void addbook()
{

    char m[20];

struct books d;

    FILE *fb;
    fb=fopen("booksection.txt","ab");
    system("cls");
    printf("\t\t\t...........................................\n");
    printf("\t\t\t:\t\t[ADD BOOKS]\t          :\n");
    printf("\t\t\t:.........................................:\n\n");
    printf("\t\t\tEnter the name of the book to be added: ");
    scanf("%s",d.bookname);
    fflush(stdin);
    printf("\t\t\t\tEnter issue date(dd/mm/yy):\n");
    printf("\t\t\t\tEnter day: ");
   scanf("%lld",&d.day);
    dete:
   if (d.day>=0 && d.day<=32)
    {
         printf("\t\t\t\tEnter month: ");
   scanf("%lld",&d.month);
    fflush(stdin);

    dete2:
     if (d.month>=0 && d.month<=12)
         {
    printf("\t\t\t\tEnter year: ");
    scanf("%lld",&d.year);
   fflush(stdin);
   dete3:
     if (d.year>2018 && d.day<2020)
     {
         printf("\t\t\t\tEnter Book Id:");
         scanf("%d",&d.bookID);
     }
         else
         {
             printf("\n");
             printf("\t\t\t\tInvalid entry!!\n");
    printf("\t\t\t\tEnter year again: ");
   scanf("%lld",&d.year);
   goto dete3;

    }
         }

   else
{
     printf("\n");
       printf("\t\t\t\tInvalid entry!!\n");
    printf("\t\t\t\tEnter month again: ");
   scanf("%lld",&d.month);
   goto dete2;
}
    }

    else{
 printf("\n");
       printf("\t\t\t\tInvalid entry!!\n");
    printf("\t\t\t\tEnter day again: ");
   scanf("%lld",&d.day);
   goto dete;
    }



    printf("                        ............................................\n");
    fwrite(&d,sizeof(d),1,fb);
    fclose(fb);

    printf("\n\t\t\tRecord Saved\n\n!");
    printf("\t\t\tEnter <main> to go to the main menu or press any key to go back: ");
    scanf("%s",m);
    if (strcmp(m,"main")==0)
    {
        system("cls");
        mainMenu();
    }
    else if (1)
    {
    system("cls");
   booksection();
    }
}

void listbook()
{
 struct books d;

    FILE *fb;
    fb=fopen("booksection.txt","r"); //binary read mode
    system("cls");
    if (fb==NULL){
        printf("\nERROR OPENING FILE, THE RECORD FILE DOES NOT EXIST!!!");
        getch();
        booksection();
    }
    printf("\t\t\t..................................................\n");
    printf("\t\t\t:\t\t   [LIST BOOKS]                  :\n");
    printf("\t\t\t:................................................:\n");

    while(fread(&d,sizeof(d),1,fb)==1){
    printf("\nBook Name: %s\nIssue date: %lld/ %lld/ %lld\nBook ID: %d\n\n",d.bookname,d.day,d.month,d.year,d.bookID);
    }
printf("............................................\n");
    fclose(fb);

    printf("\nEnter any key to go back!");
    _getch();
    system("cls");
    booksection();
}
//edit book information
void editbook(){
    char m[20];
    int bookid;
    int bfound;
   int be;


    printf("                        ............................................\n");
    printf("\t\t\t\t\t  [EDIT BOOK]\n\n");


   struct books d;

    FILE *fb;
    FILE *fbtemp;
    fb=fopen("booksection.txt","r"); //binary read mode

    fbtemp = fopen("fbtemprecord.txt","w");
     system("cls");
    printf("\t\t\tEnter BOOK ID to modify: ");
    scanf("%d",&bookid);
    fflush(stdin);
  printf("\n");
    while(fread(&d,sizeof(d),1,fb)==1){
            if(bookid!=d.bookID)
                fwrite(&d,sizeof(d),1,fbtemp);
            if(bookid==d.bookID){
                bfound = 1;
            }
    }
    if (bfound == 1){
    printf("\t\t\tEnter the name of the book to be added: ");
    scanf("%s",d.bookname);
    fflush(stdin);
    printf("\t\t\t\tEnter date(dd/mm/yy):\n");
    printf("\t\t\t\tEnter day: ");
   scanf("%lld",&d.day);
    dete:
   if (d.day>=0 && d.day<=32)
    {
         printf("\t\t\t\tEnter month: ");
   scanf("%lld",&d.month);
    fflush(stdin);

    dete2:
     if (d.month>=0 && d.month<=12)
         {
    printf("\t\t\t\tEnter year: ");
    scanf("%lld",&d.year);
   fflush(stdin);
   dete3:
     if (d.year>2018 && d.year <2020)
     {
         printf("\t\t\t\tEnter Book Id:");
         scanf("%d",&d.bookID);
     }
         else
         {
             printf("\n");
             printf("\t\t\t\tInvalid entry!!\n");
    printf("\t\t\t\tEnter year again: ");
   scanf("%lld",&d.year);
   goto dete3;

    }
         }

   else
{
     printf("\n");
       printf("\t\t\t\tInvalid entry!!\n");
    printf("\t\t\t\tEnter month again: ");
   scanf("%lld",&d.month);
   goto dete2;
}
    }

    else{
 printf("\n");
       printf("\t\t\t\tInvalid entry!!\n");
    printf("\t\t\t\tEnter day again: ");
   scanf("%lld",&d.day);
   goto dete;
    }


        fwrite(&d,sizeof(d),1,fbtemp);
    }else if(bfound!=1){
        printf("\t\t\tThe book ID does not exist!");
    }



    fclose(fb);
    fclose(fbtemp);
    remove("booksection.txt");
    rename("fbtemprecord.txt","booksection.txt");
printf("\n\n");
   printf("\t\t\tEnter <main> to go to the main menu or press any key to go back: ");
    scanf("%s",m);
    if (strcmp(m,"main")==0)
    {
        system("cls");
        mainMenu();
    }
    else if (1)
    {
    system("cls");
   booksection();
    }
}





void searchbook(){
    char m[20];
    int bid;
    int bde,bc;
    struct books d;

    FILE *fb;
  fb=fopen("booksection.txt","r");

    system("cls");
    printf("\t\t\t\t   LIBRARY MANAGEMENT SYSTEM\n\n\n");
    printf("\t\t\t...........................................\n");
    printf("\t\t\t:\t\t[SEARCH BOOK]\t          :\n");
    printf("\t\t\t:.........................................:\n\n");
    printf("\t\t\tEnter BOOK ID to search: ");
    scanf("%d",&bid);
    printf("\n\n");
    fflush(stdin);
printf("\n");
    while (fread(&d,sizeof(d),1,fb)==1)
    {
        if (bid==d.bookID){

        printf("\n[%s Book Info]\n",d.bookname);
   printf("\nBook Name: %s\nDate(dd/mm/yy): %lld/ %lld/ %lld\nBook ID: %d\n\n",d.bookname,d.day,d.month,d.year,d.bookID);
    bde=1;
}
    }
if (bde==1)
{

    printf("\n\n");
    printf("Would you like to search another book?[y/n]: ");
     research:
    bc=_getch();
    if (bc=='y')
    {
        searchuser();
            }
            if (bc=='n')
            {
                printf("\n\n");
              printf("\n\nEnter any key to go back!");

    _getch();
    system("cls");
    booksection();
            }
            else if(1)
            {
                goto research;
            }

}
if (bde!=1)
{
    printf("\t\t\t\t\t*INVALID BOOK ID*");
    printf("\n\n");
    printf("\t\t\tEnter <main> to go to the main menu or press any key to go back: ");
    scanf("%s",m);
    if (strcmp(m,"main")==0)
    {
        system("cls");
        mainMenu();
    }
    else if (1)
    {
    system("cls");
   booksection();
    }
}
fclose(fb);
}



void delbook(){
    char m[20];
    char bname[20];
    int brecordExists,bid;

    system("cls");
    fflush(stdin);

    struct books d;

    FILE *fb;
    FILE *fbtemp;

   fb=fopen("booksection.txt","r");
    fbtemp = fopen("fbtemprecord.txt","w");

    printf("\t\t\t...........................................\n");
    printf("\t\t\t:\t\t[DELETE BOOK]\t          :\n");
    printf("\t\t\t:.........................................:\n\n");
    printf("\t\t\tEnter Book ID to delete: ");
    scanf("%d",&bid);
    fflush(stdin);
    printf("\n");

    while (fread( &d, sizeof(d), 1, fb) == 1) {
        if (bid!=d.bookID)
          fwrite(&d, sizeof(d), 1, fbtemp);
        if (bid==d.bookID)
          brecordExists = 1;
    }

    fclose(fb);
    fclose(fbtemp);

    if(brecordExists!=1){
        printf("\t\t\tThe book does not exist!");
    }else{
        remove("booksection.txt");
        rename("fbtemprecord.txt", "booksection.txt");
        printf("\t\tRECORD DELETED SUCCESSFULLY.");
    }
printf("\n\n");
  printf("\t\t\tEnter <main> to go to the main menu or press any key to go back: ");
    scanf("%s",m);
    if (strcmp(m,"main")==0)
    {
        system("cls");
        mainMenu();
    }
    else if (1)
    {
    system("cls");
   booksection();
    }
}