/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ps_rot.c                                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/02/21 16:07:55 by tmaze             #+#    #+#             */
/*   Updated: 2019/03/02 16:32:04 by tmaze            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "push_swap.h"

void	ps_rot(t_psdata *data, char c)
{
	t_stack	*s;
	t_stack	*tmp;
	size_t	*size;

	if (c == 'a')
		s = data->a;
	if (c == 'a')
		size = &(data->size_a);
	else if (c == 'b')
		s = data->b;
	if (c == 'b')
		size = &(data->size_b);
	if (s != NULL && *size > 2)
	{
		s = s->next;
		tmp = ps_stkpop(data, c);
		tmp->next = NULL;
		while (s->next != NULL)
			s = s->next;
		s->next = tmp;
		(*size)++;
	}
	else if (s != NULL && *size == 2)
		ps_swap(data, c);
}

void	ps_rrot(t_psdata *data)
{
	ps_rot(data, 'a');
	ps_rot(data, 'b');
}