#include "namesarchive.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

#define INDEX_NOT_FOUND -1

static char names[MAX_NAMES][MAX_NAME_LEN+1];
static unsigned int numberOfEntries = 0;

/*
static void cpy(char *dst, const char *src, unsigned int max)
{
    int i;
    for(i = 0; i < max && *src != '\0'; i++)
    {
        *dst = *src;
        dst++;
        src++;
    }
    if(i < max)
        *dst = '\0';
}*/

int addName(const char *name)
{
    if(numberOfEntries < MAX_NAMES)
    {
        strncpy(names[numberOfEntries], name, MAX_NAME_LEN+1);
        names[numberOfEntries][MAX_NAME_LEN] = '\0';
        numberOfEntries++;
        return 1;
    }

    return 0;
}

void printNames()
{
    for(int i = 0; i < numberOfEntries; i++)
    {
        printf("%s\n", names[i]);
    }
}

static int getNameIdx(const char *name)
{
    for(int i = 0; i < numberOfEntries; i++)
    {
        if(strcmp(name, names[i]) == 0)
            return i;
    }
    return INDEX_NOT_FOUND;
}

static void removeAt(int idx)
{
    for(int i = idx; i < numberOfEntries-1; i++)
    {
        strncpy(names[i], names[i+1], MAX_NAME_LEN+1);
        names[i][MAX_NAME_LEN] = '\0';
    }
    numberOfEntries--;
}

int removeName(const char *name)
{
    int idx = getNameIdx(name);

    if(idx == INDEX_NOT_FOUND)
    {
        return 0;
    }
    else
    {
        removeAt(idx);
        return 1;
    }
}