/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ps_stktools.c                                      :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/02/22 14:41:27 by tmaze             #+#    #+#             */
/*   Updated: 2019/02/24 17:41:40 by tmaze            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "push_swap.h"

t_stack	*ps_stknew(int nb)
{
	t_stack	*ret;

	if ((ret = (t_stack*)ft_memalloc(sizeof(t_stack))) != NULL)
	{
		ret->nb = nb;
		ret->next = NULL;
	}
	return (ret);
}

void	ps_stkpsh(t_psdata *data, char c, t_stack *new)
{
	t_stack	*ind;
	t_stack **s;
	size_t	size;

	s = NULL;
	if (data != NULL && new != NULL)
	{
		if (c == 'a')
			s = &(data->a);
		if (c == 'a')
			size = data->size_a;
		if (c == 'b')
			s = &(data->b);
		if (c == 'b')
			size = data->size_b;
		if (s != NULL && *s == NULL && (size++))
			*s = new;
		else if (s != NULL && *s != NULL)
		{
			ind = *s;
			*s = new;
			new->next = ind;
			size++;
		}
	}
}

t_stack	*ps_stkpop(t_psdata *data, char c)
{
	t_stack	*ret;
	t_stack **s;
	size_t	size;

	if (c == 'a')
		s = &(data->a);
	if (c == 'a')
		size = data->size_a;
	if (c == 'b')
		s = &(data->b);
	if (c == 'b')
		size = data->size_b;
	else if (c != 'a' && c != 'b')
		return (NULL);
	ret = NULL;
	if (s != NULL && *s != NULL)
	{
		ret = *s;
		*s = ret->next;
		size--;
	}
	return (ret);
}

void	ft_lstdelstr(void *content, size_t content_size)
{
	ft_strdel((char**)&content);
	content_size = 0;
}

void	ps_stkclean(t_psdata *data)
{
	t_stack	*tmp;

	tmp = data->a;
	while (data->a != NULL)
	{
		tmp = data->a;
		data->a = data->a->next;
		ft_memdel((void**)&tmp);
		data->size_a--;
	}
	tmp = data->b;
	while (data->b != NULL)
	{
		tmp = data->b;
		data->b = data->b->next;
		ft_memdel((void**)&tmp);
		data->size_b--;
	}
	ft_lstdel(&(data->op), &ft_lstdelstr);
}