#include <stdio.h>
#include <string.h>
int main()
{
    int reboot;
    while(reboot!=0){
        system("cls");
        /*Banner*/
        printf("\n\n\t\t+---------------------------------------+");
        printf("\n\t\t|\t\t\t\t\t|");
        printf("\n\t\t|\tAdmin login system v1.1\t\t|");
        printf("\n\t\t|\t\t\t\t\t|");
        printf("\n\t\t+---------------------------------------+\n\n");

        int select;
        printf("\n\t\t[+] Select->");
        printf("\n\t\t[1] Login as admin");
        printf("\n\t\t[2] Visit as students");
        printf("\n\n\t\tinput number which you want: ");
        scanf("%d",&select);



        if(select == 1){
            char user_name[20];
            char pass_word[20];

            printf("\n\t\tUsername: ");
            scanf("%s",&user_name);

            char user_exist[20]={'a','d','m','i','n'};

            if(strcmp(user_name,user_exist)==0){
                printf("\t\tPassword: ");
                scanf("%s",&pass_word);


                FILE *user_pass;
                user_pass=fopen("admin.txt","r");
                char user_pass_str[20];
                fgets(user_pass_str,20,user_pass);    /*Make "user_pass" to a string "user_pass_str"*/
                fclose(user_pass);

                if(strcmp(pass_word,user_pass_str)==0){
                    system("cls");
                    printf("\n\n\t\t+-----------------------------------------------+");
                    printf("\n\t\t|\t\t\t\t\t\t|");
                    printf("\n\t\t|\tWelcome...You are logged in. :) \t|");
                    printf("\n\t\t|\t\t\t\t\t\t|");
                    printf("\n\t\t+-----------------------------------------------+\n\n");
                    /*=======================================================*/
                    /*----------------Admin program start here --------------*/
                    /*=======================================================*/
                    printf("\t\t[1] Change password?");
                    printf("\n\t\t[2] Register new student.");
                    printf("\n\t\t[3] Update student info.");
                    printf("\n\t\t[4] Search student by id.");

                    int admin_choice;
                    printf("[+] Chooose: ");
                    scanf("%d",&admin_choice);
                    if(admin_choice==1){
                        FILE *pass_change;
                        pass_change=fopen("admin.txt","w");
                        char pass_change_input[20];
                        printf("Write a new password: ");
                        scanf("%s",&pass_change_input[20]);
                        fwrite(pass_change_input,20,pass_change);
                        fclose(pass_change);
                    }
                    else if(admin_choice==2){}
                    else if(admin_choice==3){}
                    else if(admin_choice==4){}
                    else{}

                }else{
                    printf("\n\n\t\t[-] Password incorrect.\n\n");  /* Password incorrect condition */
                }
            }else{
                printf("\n\t\t[-] Username incorrect.\n");  /* Username incorrect condition */
            }
        }
        else if(select == 2){
            /* Students area */
        }else{
        printf("\n\t\tInput [1] or [2] not others number.\n\n"); /* First input condition*/
        }
    printf("\n\n\t\t[0] for stop program [1] for reboot: "); /* This line for reoot this program */
    scanf("%d",&reboot);
    }
    return 0;
}