#include <stdio.h>                                                                        
#include "linkedlist.h"

int main()
{
    Node *start, *tmp, *tmp2;
    char input, i;

    start = tmp = tmp2 = NULL;

    printf("Phase 1: Building a list\n");
    printf("------------------------\n");

    printf("Enter a value (0-127) [-1 to quit]: ");
    scanf("%hhd", &input);

    while (input != -1) 
    {   
        tmp2 = (Node *) malloc (sizeof(Node));
        tmp2 -> value = input;
        tmp2 -> next = NULL;

        start = appendnode(start, tmp, tmp2);

        if (tmp == NULL)
            tmp = start;

        if (tmp -> next != NULL)
            tmp = tmp -> next;

        printf("Enter a value (0-127) [-1 to quit]: ");
        scanf("%hhd", &input);
    }   

    printf("\n\nPhase 2: Displaying the list\n");
    printf("-----------------------------\n");

    i = showlist(start);

    printf("\n\nPhase 3: Selecting a Node to Append After\n");
    printf("---------------------------------------------\n");

    do {
        printf("Select a node # to append after (0-%hhd): ", i); 
        scanf("%hhd", &input);

        tmp = getpos(start, input);
    } while (tmp == NULL);
    
    printf("\n\nPhase 4: Append New Node After Specified Node\n");
    printf("-------------------------------------------------\n");

    printf("Enter a value (0-127) for new node: ");
    scanf("%hhd", &input);
    
    tmp2 = (Node *) malloc (sizeof(Node));
    tmp2 -> value = input;
    tmp2 -> next = NULL;

    start = appendnode(start, tmp, tmp2);

    printf("\n\nPhase 5: Displaying the list\n");
    printf("-----------------------------\n");

    showlist(start);

    return(0);
}