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

typedef struct data
{
    int acc_no,age;
    char name[20];
    char address[20];
    char citizenship[20];
    int acc_type;
    double phone;
    float diposit_money;
    float withdraw_money;
    struct data *pre;
    struct data *next;
} data;

data *head = NULL;
data *list;

void savedata()
{
    list = head;
    FILE *p;
    fopen("project.dat","a+");
    fprintf(p,"Name        account_number       address          citizenship          phone\n");
    while(list != NULL)
    {
        fscanf(p,"%s        %d       %s          %s          %lf\n",&list->name,& list -> acc_no,& list -> address,& list ->citizenship,& list -> phone);
        fprintf(p,"%s        %d       %s          %s          %lf\n",list->name, list -> acc_no, list -> address, list ->citizenship, list -> phone);
    }
    fclose(p);
}

void view()
{
    int x;
    list = head;
    printf("name             acc_no              phone               diposit                   withdraw");
    while(list != NULL)
    {
        printf("\n%s             %d              %0.0lf               %.2f                   %.2f",list -> name,list -> acc_no,list -> phone,list -> diposit_money, list -> withdraw_money);
        list = list -> next;
    }
    printf("\n\n\n\t\t\tInter 1 for goto menu 0 for exit: ");
    scanf("%d",&x);
    if(x == 1)
    {
        system("cls");
        menu();
    }
    else
    {
        exit_code();
    }
}

void exiting_acc()
{
    int n,accc_no,test = 0,chose;
    char nam;
    list = head;

    printf("Enter the account number: ");
    scanf("%d",&accc_no);
    while(list!=NULL)
    {
        if(accc_no == list -> acc_no)
        {
            test++;
            printf("The account no: %d\n",list -> acc_no);
            printf("Name: %s\n",list -> name);
            printf("citizenship: %s\n",list -> citizenship);
            printf("address: %s\n",list-> address);
            printf("phone: %0.0lf\n",list-> phone);
        }
        list = list -> next;
    }
    if(test==0)
    {
add_invalid:
        printf("Invalid account number: \n");
        printf("Enter 1 for goto menu 0 for exit");
        scanf("%d",&chose);
        if(chose == 1)
        {
            system("cls");
            menu();
        }
        else if(chose == 0)
        {
            exit_code();
        }
        else
        {
            printf("Invalid input!");
            goto add_invalid;
        }
    }
    else
    {
        printf("\nEnter 1 for goto manu 0 for exit");
        scanf("%d",&chose);
        if(chose == 1)
        {
            system("cls");
            menu();
        }
        else if(chose == 0)
        {
            exit_code();
        }
    }
}


void remove_ex_acc()
{
    int account_number,test = 0,x;
    printf("Enter account number which you want to remove: ");
    scanf("%d",&account_number);
    list = head;
    while(list != NULL)
    {
        if(list -> acc_no == account_number)
        {
            if(list -> pre == NULL)
            {
                head = list -> next;
                head -> pre = NULL;
                free(list);
            }
            else if(list -> next == NULL)
            {
                list -> pre -> next = NULL;
                free(list);
            }
            else
            {
                data *temp = list -> pre;
                data *temp1 = list -> next;
                temp -> next = list -> next;
                temp1 -> pre = temp;
                free(list);
            }
            printf("Account remove successfully");
            test++;
        }
        list = list -> next;
    }
    if(test == 0)
    {
        printf("Invalid account number");
        printf("Enter 1 for menu 0 for exit: ");
        scanf("%d",&x);
        if(x == 1)
        {
            system("cls");
            menu();
        }
        else
        {
            system("cls");
            exit_code();
        }
    }
    printf("Enter 1 for menu 0 for exit: ");
    scanf("%d",&x);
    if(x == 1)
    {
        system("cls");
        menu();
    }
    else
    {
        system("cls");
        exit_code();
    }

}



void tranjiction()
{
    int account_no, test = 0,x;
    int n,money;
    list = head;
    printf("Enter acc.no of the customer:\n");
    scanf("%d",&account_no);
    while(list != NULL)
    {
        if(list -> acc_no == account_no)
        {
            test++;
            printf("Do you want to\n 1.Deposit\n 2.Withdraw? ");
            scanf("%d",&n);
            if(n ==1)
            {
                printf("Enter your amount you want to deposit: ");
                scanf("%f",&list -> diposit_money);

                printf("Deposit successfully");
                fordelay(1000000);
                system("cls");
                menu();
            }
            else
            {
                printf("Enter your amount you want to withdraw: ");
                scanf("%f",& list ->withdraw_money);
                printf("Withdraw successfully");
                fordelay(1000000);
                system("cls");
                menu();
            }
        }

        list = list -> next;
    }

    if(test == 0)
    {
        printf("Invalid account number!\n");
         printf("Enter 1 for menu 0 for exit: ");
        scanf("%d",&x);
        if(x == 1)
        {
            system("cls");
            menu();
        }
        else
        {
            system("cls");
            exit_code();
        }

    }
    printf("Enter 1 for menu 0 for exit: ");
    scanf("%d",&x);
    if(x == 1)
    {
        system("cls");
        menu();
    }
    else
    {
        system("cls");
        exit_code();
    }


}

void new_acc()
{

    int chose;
    data *N = (data*)malloc(sizeof(data));
    printf("\nEnter your acc_no: ");
    scanf("%d",& N -> acc_no);
    printf("Enter your name: ");
    scanf(" %[^\n]s",N -> name);
    printf("Enter your age: ");
    scanf("%d",& N -> age);
    printf("Enter your address: ");
    scanf(" %[^\n]s",N -> address);
    printf("Enter your citizenship: ");
    scanf(" %[^\n]s",N -> citizenship);
    printf("Enter your phone: ");
    scanf("%lf",& N -> phone);
    printf("Enter your acc_type: \n\t\t\t1.Saving\n\t\t\t2.Current\n\t\t\t3.Fixed\n\n\t\tEnter your chose: ");
    scanf("%d",& N -> acc_type);
    N -> pre = NULL;
    N -> next = NULL;
    if(list == NULL)
    {
        list = N;
        head = list;
    }
    else
    {
        list -> next = N;
        N -> pre = list;
        list = list -> next;
    }
    printf("Account create successfully!\n");
add_invalid:
    printf("Enter 1 for goto menu 0 for exit");
    scanf("%d",&chose);
    if(chose == 1)
    {
        system("cls");
        menu();
    }
    else if(chose == 0)
    {
        exit_code();
    }
    else
    {
        printf("Invalid input!");
        goto add_invalid;
    }
}


void edit_acc()
{

    data *temp;
    int account_number,chose,test = 0,account_no,x;
back:
    printf("Enter the account number whose info you want to change: ");
    scanf("%d",&account_no);
    list = head;
    while(list != NULL)
    {
        if(list -> acc_no == account_no)
        {
            test++;
            printf("Which info do you want to change?\n");
            printf("1.Address\n");
            printf("2.Phone\n");
            printf("3.Name\n");
            printf("Enter your chose: ");
            scanf("%d",&chose);
            if(chose == 1)
            {
                scanf(" %[^\n]s",list ->address);
            }
            else if(chose == 2)
            {
                scanf("%lf",&list -> phone);
            }
            else
            {
                scanf(" %[^\n]s",list ->name);
            }
            printf("Chenge saved!\n");
        }
        list = list -> next;
    }
    if(test == 0)
    {
        printf("Invalid account number!\a\n");
        printf("Enter 1 for try again 0 for manu: ");
        scanf("%d",&x);
        if(x == 1)
        {
            system("cls");
            goto back;
        }
        else if(x == 0)
        {
            system("cls");
            menu();
        }
        else
        {
            system("cls");
            exit_code();
        }
    }
    else
    {
        printf("Your account edit succuesfully");
        fordelay(100000000);
        system("cls");
        menu();
    }
}

void exit_code()
{
    printf("Thank you!");
}

void menu()
{
    int chose;
    system("color 7");
    printf("Enter your chose\n");
    printf(" 1.Create new account.\n 2.Edit account.\n 3.tranjiction.\n 4.Check the details of an exiting account.\n 5.Remove exinting account.\n 6.Vew customar list.\n 7.Exit.\n");
    printf("\n\nEnter your chose: ");
    scanf("%d",&chose);
    switch(chose)
    {
    case 1:
        new_acc();
        break;
    case 2:
        edit_acc();
        break;
    case 3:
        tranjiction();
        break;
    case 4:
        exiting_acc();
        break;
    case 5:
        remove_ex_acc();
        break;
    case 6:
        view();
        break;
    case 7:
        exit_code();
        break;

    }

}

void fordelay(int n)
{
    int i,k;
    for(i=0; i<n; i++)
    {
        k = i;
    }
}

int main()
{
    int n,i;
    system("color 2");
    char pass[10],password[10] = "prism";
    printf("\n\n\t\t\t\t\t\t\Welcome To Our project\n");
back:
    printf("Enter your password: ");
    scanf(" %[^\n]s",&pass);
    system("cls");
    if(strcmp(pass,password)==0)
    {
        printf("Password matching\n Loding");
        for(i=0; i<6; i++)
        {
            fordelay(100000000);
            printf(".");
        }
        system("cls");
        menu();
    }
    else
    {
        printf("Incorrect password!\a\n");
        printf("Enter 1 to try again 0 for exit");
        scanf("%d",&n);
        if(n==1)
        {
            system("cls");
            goto back;
        }
        else
        {
            system("cls");
            exit_code();
        }

    }

    return 0;
}