MENU2

int main()
{
    node_id* root_id;
    node_id* root_name;


    root_name = NULL;
    root_id = NULL;
    printf("-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-\n\n");
    printf("choose:\n");
    printf("1- insert data\n");
    printf("2- write file to tree\n3- print\n");
    printf("4- delete\n");
    printf("5- search\n");
    printf("6- read file to tree\n7- quit\n\n");


    int command;
    char co[20];

    char name[40];
    char id_2[10];
    int id;
    char c;
    printf("Enter command: ");
    scanf(" %s", co);
    command = atoi(co);

    do
    {
        if(command<1 || command>7)
        {
            system("cls");
            printf("enter valid number\n\n");
        }
        else
            switch (command)
            {
            case 7:
            {
                system("cls");
                printf("THANK YOU!\n\n");
                printf("Ahmad Omar 2715 & Ahmad Abdulaziz 2210\n\n");
                exit(0);
                break;
            }
            case 1:
            {
                system("cls");
                printf("Enter name: ");
                while((c= getchar()) != '\n' && c != EOF);
                //gets(name);
                int j,f;

                scanf(" %[^\n]",name);
                printf("Enter id: ");
                scanf(" %[^\n]",id_2);
                int l=strlen(name);
                for(j=0; j<l; j++)
                    if ( !(name[j]=='\n' || name[j] == 32 || (name[j] >= 65 && name[j] <= 90) || (name[j] >= 97 && name[j] <= 122) ))
                    {
                        printf("ERROR in name\n");
                        f=1;
                        break;
                    }
                if(f==1)
                    break;
                node_id *test = search_id(&root_id,atoi(id_2));
                if(test != NULL && atoi(id_2) == test->id)
                    printf("ERROR, id already exist!\n");
                else if(atoi(name)==0 && atoi(id_2)> 0 && atoi(id_2) == atof(id_2))
                {
                    id= atoi(id_2);
                    insert(&root_id, &root_name, id, name);
                    system("cls");
                    printf("%d %s inserted succesfuly\n\n",id,name);
                }
                else
                {
                    printf("\nERROR in name or id!\n");
                }
                break;
            }


            case 2:
            {
                system("cls");
                char file_name[50];
                printf("Enter file name: ");
                scanf("%s", file_name);
                FILE* file = fopen(file_name, "w");
                write_tree_to_file(root_id, file);
                fclose(file);
                break;
            }

            case 3:
            {
                char z[15];
                system("cls");
                printf("choose type of print:\n");
                printf("1- print preorder by id\n");
                printf("2- print preorder by name\n3- print post order by id\n");
                printf("4- print post order by name\n5- inorder by id\n");
                printf("6- print inorder by name\n");
                printf("your choice: ");
                scanf(" %[^\n]s",z);
                int x=atoi(z);
                if(x==1)
                    print_preorder(root_id,0);
                else if(x==2)
                    print_preorder(root_name,0);
                else if(x==3)
                    print_postorder(root_id,0);
                else if(x==4)
                    print_postorder(root_name,0);
                else if(x==5)
                    print_inorder(root_id,0);
                else if(x==6)
                    print_inorder(root_name,0);
                else
                {
                    system("cls");
                    printf("enter a valid choice!\n");
                    break;
                }
                break;
            }
            case 4:
            {
                char z2[15];
                system("cls");
                printf("1- by name\n2- by id\n");
                printf("your choice: ");
                scanf(" %[^\n]s",z2);
                int x2=atoi(z2);
                if(x2==1)
                {
                    system("cls");
                    printf("Enter name: ");
                    while((c= getchar()) != '\n' && c != EOF);
                    gets(name);
                    node_id* temp = search_name(&root_name, name);
                    if (temp != NULL)
                    {
                        id = temp->id;
                    }
                    if(temp == NULL)
                        printf("NOT FOUND.\n\n");
                    else
                    {
                        root_id = delete_id(root_id, id);
                        root_name = delete_name(root_name, name);
                        printf("\n%d  %s has been deleted succesfuly.\n\n",id,name);
                    }
                }

                else if(x2==2)
                {
                    system("cls");
                    printf("Enter id: ");
                    scanf("%d", &id);
                    node_id* temp = search_id(&root_id, id);
                    if (temp != NULL)
                    {
                        strcpy(name, temp->name);
                    }
                    if(temp==NULL)
                        printf("NOT FOUND.\n\n");
                    else
                    {
                        root_id = delete_id(root_id, id);
                        root_name = delete_name(root_name,name);
                        printf("\n%d  %s has been deleted succesfuly.\n\n",id,name);
                    }
                }
                else
                {
                    system("cls");
                    printf("enter a valid choice.\n");
                    break;
                }
                break;
            }
            case 5:
            {
                system("cls");
                char z3[15];
                printf("1- by id\n2- by name\n");
                printf("your choice: ");
                scanf("% [^\n]s",z3);
                int x3=atoi(z3);
                if(x3==2)
                {
                    system("cls");
                    printf("Enter name: ");
                    while((c= getchar()) != '\n' && c != EOF);
                    gets(name);
                    search_name_2(&root_name, name);
                }
                if(x3==1)
                {
                    system("cls");
                    printf("Enter id: ");
                    scanf("%d", &id);
                    search_id_2(&root_id, id);
                }
                else
                {
                    system("cls");
                    printf("enter a valid choice!\n");
                    break;
                }
                break;
            }
            case 6:
            {
                system("cls");
                char file_name[50];
                printf("Enter file name: ");
                scanf("%s", file_name);
                reed_file_to_tree(&root_id, &root_name, file_name);

                break;
            }
            }
        printf("-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-\n\n");
        printf("choose:\n");
        printf("1- insert data\n");
        printf("2- write file to tree\n3- print\n");
        printf("4- delete\n");
        printf("5- search\n");
        printf("6- read file to tree\n7- quit\n\n");
        printf("Enter command: ");
        scanf(" %s", co);
        command = atoi(co);
    }
    while (command !=  ~(1<<31));

}