Project Final (Library Management System)

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
typedef struct node
{
    char bookid[50];
    char bookname[100];
    char author[50];
    char category[50];
    char name[50];
    int quantity;
    struct node *next;
} node;

node *head_book=NULL, *ihead=NULL;


node *search_id(node *list , char s[])
{

    while(list!=NULL)
    {
        if(strcmp(list->bookid,s)==0)
        {
            return list;
            break;
        }
        list=list->next;
    }
    if(list==NULL)
    {
        return NULL;
    }
}


node *search_nm(char s[])
{
    node *list=head_book;
    while(list!=NULL)
    {
        if(strcmp(list->bookname,s)==0)
        {
            return list;
            break;
        }
        list=list->next;
    }
    if(list==NULL)
    {
        return NULL;
    }
}

void search()
{
    printf("1.Search by Id\n");
    printf("2.Search By Name\n");
    int x;
    printf("Select one:");
    scanf("%d",&x);
    if(x==1)
    {
        char temp[50];
        printf("Enter Book ID:");
        scanf(" %[^\n]",temp);
        node *n=search_id(head_book,temp);
        if(n==NULL)
        {
            printf("No Book Available\n");

        }
        else
        {
            printf("\nBook Is Available!!!!\n\n");
            printf("Book ID: %s\n",n->bookid);
            printf("Book Name: %s\n",n->bookname);

            printf("Author: %s\n",n->author);
            printf("Quantity: %d\n",n->quantity);

        }
        printf("\n1.back\n");
        printf("2.menu\n");
        printf("Choose One:");
        int y;
        scanf("%d",&y);
        if(y==1)
        {
            search();
        }
        else
        {
            menu();
        }


    }
    else if(x==2)
    {  char temp[50];
        printf("Enter Book Name:");
        scanf(" %[^\n]",temp);
        node *n=search_nm(temp);
        if(n==NULL)
        {
            printf("\nNo Book Available!!\n\n");

        }
        else
        {
            printf("\nBook Is Available\n\n");
            printf("Book ID: %s\n",n->bookid);
            printf("Book Name: %s\n",n->bookname);

            printf("Author: %s\n",n->author);
            printf("Quantity: %d\n\n",n->quantity);

        }
        printf("\n1.back\n");
        printf("2.menu\n");
        printf("Choose One:");
        int y;
        scanf("%d",&y);
        if(y==1)
        {
            search();
        }
        else
        {
            menu();
        }

    }
}


void view()
{
    node *list = head_book;
    int cm=0,e=0,c=0,m=0,a=0;
    while(list!=NULL)
    {
        if(strcmp(list->category,"Computer")==0)
    {
        printf("\nBook Id: %s\n",list->bookid);
        printf("book Name: %s\n",list->bookname);
        printf("Author: %s\n",list->author);
        printf("Category: %s\n",list->category);
        printf("Quantity: %d\n",list->quantity);
        cm++;
    }


        list=list->next;
    }

     list = head_book;
    while(list!=NULL)
    {
        if(strcmp(list->category,"Electronics")==0)
    {
        printf("\nBook Id: %s\n",list->bookid);
        printf("book Name: %s\n",list->bookname);
        printf("Author: %s\n",list->author);
        printf("Category: %s\n",list->category);
        printf("Quantity: %d\n",list->quantity);
        e++;
    }

        list=list->next;
    }


    list = head_book;
    while(list!=NULL)
    {
        if(strcmp(list->category,"Civil")==0)
    {
        printf("\nBook Id: %s\n",list->bookid);
        printf("book Name: %s\n",list->bookname);
        printf("Author: %s\n",list->author);
        printf("Category: %s\n",list->category);
        printf("Quantity: %d\n",list->quantity);
        c++;
    }

        list=list->next;
    }


       list = head_book;
    while(list!=NULL)
    {
        if(strcmp(list->category,"Mechanical")==0)
    {
        printf("\nBook Id: %s\n",list->bookid);
        printf("book Name: %s\n",list->bookname);
        printf("Author: %s\n",list->author);
        printf("Category: %s\n",list->category);
        printf("Quantity: %d\n",list->quantity);
        m++;
    }

        list=list->next;
    }


      list = head_book;
    while(list!=NULL)
    {
        if(strcmp(list->category,"Architecture")==0)
    {
        printf("\nBook Id: %s\n",list->bookid);
        printf("book Name: %s\n",list->bookname);
        printf("Author: %s\n",list->author);
        printf("Category: %s\n",list->category);
        printf("Quantity: %d\n",list->quantity);
        a++;
    }

        list=list->next;
    }
    printf("\nTotal Computer Book:%d\n",cm);


     printf("\nTotal Electronics Book:%d\n",e);

    printf("\nTotal Civil Book:%d\n",c);

       printf("\nTotal Mechanical Book:%d\n",m);

    printf("\nTotal Architecture Book:%d\n\n",a);

    printf("Total Book's = %d\n\n",a+cm+c+m+e);
    printf("\n1.menu\n");
    int x;
    printf("press 1\n");
    scanf("%d",&x);
    menu();


}

void addbook()
{

  char temp[50];
    printf("\n1.Computer\n");
    printf("2.Electronics\n");
    printf("3.Civil\n");
    printf("4.Mechanical\n");
    printf("5.Architecture\n");
    printf("Select category:");
    int x;
    scanf("%d",&x);
    switch(x)
    {
    case 1:
    {
        strcpy(temp,"Computer");
        break;
    }
    case 2:
    {
        strcpy(temp,"Electronics");
        break;
    }
    case 3:
    {
        strcpy(temp,"Civil");
        break;
    }
    case 4:
    {
        strcpy(temp,"Mechanical");
        break;
    }
    case 5:
    {
        strcpy( temp,"Architecture");
        break;
    }
    default:
    {
        printf("Choose Correct option!!\n");
        addbook();
        break;
    }
    }
    char id[50];
    printf("\nEnter Book Id:");
    scanf(" %s",id);

    node *list=head_book;
        while(list!=NULL)
        {
            if(strcmp(list->bookid,id)==0)
            {
                printf("\nThis Book Id Already Exist!!\n\n");
                break;
            }
            list=list->next;

        }
        if(list==NULL)
        {
            node *n=(node*)malloc(sizeof(node));
        n->next=NULL;
             printf("Book Name:");
    scanf(" %[^\n]",n->bookname);

    printf("Author:");
    scanf(" %[^\n]",n->author);
    printf("Quantity:");
    scanf("%d",&n->quantity);
    strcpy(n->bookid,id);
    strcpy(n->category,temp);
    if(head_book==NULL)
    {
        head_book=n;
    }
    else
    {
        node *list=head_book;
        while(list->next!=NULL)
        {
            list=list->next;
        }
        list->next=n;
    }

        }





    printf("\n1.Add More information\n");
    printf("2.Menu\n");
    printf("Choose one:");
    int y;
    scanf("%d",&y);
    if(y==1)
    {

            addbook();



    }
    else
    {
        menu();
    }
}






void Delete()
{   char ch[50];
    node *temp=NULL;
    printf("\nEnter Book Id:");
    scanf("%s",ch);
    node *list=head_book;
    if(head_book==NULL)
    {
        printf("\nThis Book Does not Exist!!\n\n");
    }
    else if(strcmp(head_book->bookid,ch)==0)
    {
        temp=head_book;
        head_book=head_book->next;
        free(temp);
        printf("\n\nDeleted!!!\n\n");
    }
    else
    {
        while(strcmp(list->next->bookid,ch)!=0&&list->next!=NULL)
        {
            list=list->next;
        }
        if(list->next==NULL)
        {
            printf("\nThis Book Does not Exist!!\n\n");
        }
        else
        {
            temp=list->next;
            list->next=temp->next;
            free(temp);
        }
        printf("\n\nDeleted!!!\n\n");
    }

    printf("1.delete Another\n");
    printf("2.Menu\n");
    int x;
    if(x==1)
    {
        Delete();
    }
    else
    {
        menu();
    }

}
ibook()
{   char ch[50];
    printf("Enter Book id:");
    scanf("%s",ch);
    node *n=search_id(head_book,ch);
    if(n==NULL)
    {
        printf("\nNo Record Found!!\n\n");
    }
    else
    {
    node *m=(node*)malloc(sizeof(node));
    m->next=NULL;
        printf("This Book Is available!");
        printf("There are %d unissued book in the library\n",n->quantity);
        printf("The book name is: %s\n",n->bookname);
        printf("Enter Student Name:");
        scanf(" %[^\n]",m->name);
        strcpy(m->bookid,n->bookid);
        strcpy(m->bookname,n->bookname);
        strcpy(m->category,n->category);
        printf("The Book of Id %s is Issued for 7 days\n",n->bookid);
        if(ihead==NULL)
        {
            ihead=m;
        }
        else
        {
            node *list=ihead;
            while(list->next!=NULL)
            {
                list=list->next;
            }
            list->next=m;
        }

    }

    printf("\n1.issue another book\n");
    printf("2.menu\n");
   int y;
   printf("choose one:");
   scanf("%d",&y);
   if(y==1)
   {
       ibook();
   }
   else
   {
       menu();
   }
}

void vbook()
{
    node *list=ihead;
    if(ihead==NULL)
    {
        printf("\nNo record found\n\n");
    }
    else
    {
        while(list!=NULL)
        {
            printf("Student Name: %s\n",list->name);
            printf("Book Name: %s\n",list->bookname);
            printf("Book Id: %s\n",list->bookid);
            printf("Category: %s\n\n",list->category);
            list=list->next;
        }
    }
    printf("\n1.back\n");
    printf("2.menu\n");
    int y;
    printf("Choose One:");
    scanf("%d",&y);
    if(y==1)
    {
        issu();
    }
    else
    {
        menu();
    }
}


void sissu()
{
    printf("Enter Book id:");
    char ch[50];
    scanf("%s",ch);
    node *list=ihead;
    int count=0;
    if(ihead==NULL)
    {
        printf("\nNo record found!!\n");
    }
    else
    {
        while(list!=NULL)
        {
            if(strcmp(list->bookid,ch)==0)
            {
                printf("This book has taken by %s\n",list->name);
                count=1;
            }
        }
        printf("\n");
        if(count==0)
        {
            printf("\nNo record found!\n\n");
        }
    }
    printf("\n1.Another search\n");
    printf("2.Menu\n");
    int y;
    printf("choose one:");
    scanf("%d",&y);
    if(y==1)
    {
        sissu();
    }
    else
    {
        menu();
    }

}
void rissu()
{
    printf("Enter book Id:");
    char ch[50];
    scanf("%s",ch);
    node *temp=NULL;
    if(ihead==NULL)
    {
        printf("no record found\n");
    }
  else if(strcmp(ihead->bookid,ch)==0)
    {
        temp=ihead;
        ihead=ihead->next;
        free(temp);
    }
    else
    {
        node *list=ihead;
        while(strcmp(list->next->bookid,ch)!=0&&list->next!=NULL)
        {
            list=list->next;
        }
        if(list->next==NULL)
        {
            printf("No record Found!!\n");
        }
        else
        {
            temp=list->next;
            list->next=temp->next;
            free(temp);
        }
    }
    printf("\n1.Remove another Issue\n");
    printf("2.Menu\n");
    int y;
    printf("Choose One:");
    scanf("%d",&y);
    if(y==1)
    {
        rissu();
    }
    else
    {
        menu();
    }
}

void issu()
{   printf("\n1.issue a book\n");
    printf("2.View Issue Book\n");
    printf("3.search Issue Book\n");
    printf("4.remove Issue Book\n ");
    printf("Choose one:");
    int x;
    scanf("%d",&x);
    switch(x)
    {
    case 1:
        {
            ibook();
            break;

        }
    case 2:
        {
            vbook();
             break;
        }
    case 3:
        {
            sissu();
            break;
        }
    case 4:
        {
            rissu();
        }
    default:
        {
            printf("\nYou Choose Wrong otion!!!\n");
            menu();
            break;
        }
    }
}
void edit()
{
    char temp[50];
    printf("Enter Book id:");
    scanf("%s",temp);
    node *n=search_id(head_book,temp);
    if(n==NULL)
    {
        printf("\nNo record Found!!\n");
    }
    else
    {
        printf("\nNew book Name:");
        scanf(" %[^\n]",n->bookname);
        printf("Author Name:");
        scanf(" %[^\n]",n->author);
        printf("Quantity:");
        scanf("%d",&n->quantity);
    }

    printf("\n1.Edit Another Book\n");
    printf("2.menu\n");
    printf("Choose One:");
    int x;
    scanf("%d",&x);
    if(x==1)
    {
        edit();
    }
    else
    {
        menu();
    }
}

void menu()
{
    printf("\n1.Add Books\n");
    printf("2.Search Books\n");
    printf("3.Delete Books\n");
    printf("4.Issue Books\n");
    printf("5.view book list\n");
    printf("6.Edit Books\n");
    printf("7.Exit\n");
    int x;
    printf("Choose any One:");
    scanf("%d",&x);
    switch(x)
    {
    case 1:
    {

            addbook();



        break;
    }
    case 2:
    {
        search();
        break;
    }
    case 3:
    {
        Delete();
        break;
    }
    case 4:
    {
        issu();
        break;
    }
    case 5:
    {
        view();
        break;
    }
    case 6:
    {
        edit();
        break;
    }
    case 7:
    {
        exit(0);
        break;
    }

    default :
    {
        printf("Choose Correct Option!!\n");
        menu();
        break;
    }
    }

}

int main()
{
    printf("                                                                                                        LIBRARY MANAGEMENT\n");
    printf("                                                                                                       ____________________\n");
    menu();
}