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

typedef struct orang {
    char nama[30];
    int nim;
    char prodi[30];
    int angkatan;
    char gedung;
    int ruangan;

    struct orang *next;
} orang;

    orang *head, *curr, *node;
    char nama[30];
    char prodi[30];
    int angkatan;
    char gedung;
    int ruangan;
    int nim;
    int i = 1;


void pinjam()
{
    system("cls");
    printf("==================================\n");
    printf("Input Data Peminjaman Ruangan\n");
    printf("==================================\n");

    printf("Input nama\t : "); fflush(stdin); scanf("%[^\n]", &nama);
    printf("Input nim\t : "); fflush(stdin); scanf("%[^\n]", &nim);
    printf("Program Studi\t : "); fflush(stdin); scanf("%[^\n]", &prodi);
    printf("Angkatan\t : "); fflush(stdin); scanf("%d", &angkatan);
    printf("Gedung (A-D)\t : "); fflush(stdin); scanf("%d", &gedung);
    printf("Ruangan\t\t : "); fflush(stdin); scanf("%d", &ruangan);

    node = (struct orang*) malloc(sizeof(struct orang));
    node->next = NULL;

    strcpy(node->nama, nama);
    node->nim = nim;
    strcpy(node->prodi, prodi);
    node->angkatan = angkatan;
    node->gedung = gedung;
    node->ruangan = ruangan;


    if(head == NULL) {
            head = node;
        }
        else {
            curr = head;
            while(curr->next != NULL) {
                curr = curr->next;
            }
            curr->next = node;
        }
    printf("Data peminjaman ruangan telah berhasil diinput dengan status unapproved!\n");
    printf("Press any key to continue . . .");
    getch();
}

void list()
{
    system("cls");
    int i = 1;
    curr = head;
    while(curr != NULL) {
        printf("Data %d\n", i);
        printf("Nama\t\t : %s\n", curr->nama);
        printf("NIM\t\t : %d\n", curr->nim);
        printf("Program Studi\t : %s\n", curr->prodi);
        printf("Angkatan\t : %d\n", curr->angkatan);
        printf("Ruangan\t : %d\n", curr->gedung, curr->ruangan);
        printf("Status\t : Unapproved\n");
        curr = curr->next;
        i++;
    }
    getch();
}

void hapus()
{
    system("cls");
    while (head != NULL){
        curr = head;
        head = head->next;
        curr->next = NULL;
        free(curr);
    }
    printf("Clear All Success !\n");
    printf("Press any key to continue . . .");
    getch();
}

int main()
{
    int menu;

    while(menu != 4)
    {
        system("cls");
        printf("========================\n");
        printf("Menu Peminjaman Ruangan\n");
        printf("========================\n");
        printf("1. Pinjam ruangan\n2. List Ruangan yang dipinjam\n3. Hapus list ruangan yang dipinjam(Clear All)\n4. Exit\n");
        printf("Input : ");
        scanf("%d", &menu);

        if (menu == 1){
            pinjam();
        }
        else if(menu == 2){
            list();
        }
        else if(menu == 3){
            hapus();
        }
    }

    return 0;
}