/**
* @file LinkedList.c
* @author Davidthefat
* @date 10/27/12
* @version 1.0
*/

#include "LinkedList.h"

void *get(int index)
{
        if(index >= self->size)
                return NULL;
        int i = 0;
        self->iterator = self->head;
        while(i++<index)
                self->iterator = self->iterator->next;
        return self->iterator->data;
}
LList *construct()
{
        self = (LList*)malloc(sizeof(LList));
        self->size = 2;
        self->head = (Node*)malloc(sizeof(Node));
        self->tail = (Node*)malloc(sizeof(Node));
        self->head->next = self->tail;
        self->tail->next = NULL;
        self->head->data = NULL;
        self->tail->data = NULL;
        self->get = &get;
        self->add = &add;
        self->addEnd = &addEnd;
        self->addBeg = &addBeg;
        self->del = &del;
        self->set = &set;
        self->destruct = &destruct;
        return self;
}
void add(void *in, int index)
{
        if(index >= self->size && self->size != 0)
                return (void)printf("Index out of bounds\n");
        if(index == 0 && self->size == 0) {
                self->head->data = in;
                return;
        } else if(index == 0)
                return addBeg(in);
        int i = 0;
        Node *temp = (Node*)malloc(sizeof(Node));
        temp->data = in;
        self->iterator = self->head;
        while(i++<index-1)
                self->iterator = self->iterator->next;
        temp->next = self->iterator->next;
        self->iterator->next = temp;
        self->size++;
}
void addEnd(void *in)
{
        Node *temp = (Node*)malloc(sizeof(Node));
        temp->data = in;
        temp->next = NULL;
        self->tail->next = temp;
        self->tail = temp;
        self->size++;
}
void addBeg(void *in)
{
        Node *temp = (Node*)malloc(sizeof(Node));
        temp->data = in;
        temp->next = self->head;
        self->head = temp;
        self->size++;
}
char del(int index)
{
        Node *temp;
        if(index >= self->size)
                return 0*printf("Index out of bounds\n");
        int i = 0;
        self->iterator = self->head;
        while(i++<index-1)
                self->iterator = self->iterator->next;
        temp = self->iterator;
        self->iterator = self->iterator->next;
        temp->next = self->iterator->next;
        free(self->iterator->data);
        free(self->iterator);
        self->size--;
        return 1;
}
void set(void *in, int index)
{
        if(index >= self->size)
                return (void)printf("Index out of bounds\n");
        int i = 0;
        self->iterator = self->head;
        while(i++<index)
                self->iterator = self->iterator->next;
        self->iterator->data = in;
}
void destruct()
{
        while(self->head->next && del(self->size-1))
                ;
}