/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ps_clean.c                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tmaze <tmaze@student.42.fr>                +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/03/16 13:14:52 by tmaze             #+#    #+#             */
/*   Updated: 2019/03/16 13:29:57 by tmaze            ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "push_swap.h"

static void	clean_push(t_psdata *data, t_list ***prec, t_list **it)
{
	**prec = (*it)->next->next;
	ft_memdel(&((*it)->next->content));
	ft_memdel((void**)(&((*it)->next)));
	ft_memdel(&((*it)->content));
	ft_memdel((void**)it);
	*it = data->op;
	*prec = &(data->op);
}

static void	clean_swap(t_psdata *data, t_list ***prec, t_list **it)
{
	**prec = (*it)->next;
	ft_strcpy((char*)((*it)->next->next->content), "sa");
	ft_memdel(&((*it)->content));
	ft_memdel((void**)it);
	*it = data->op;
	*prec = &(data->op);
}

void		clean_op(t_psdata *data)
{
	t_list	*it;
	t_list	**prec;

	it = data->op;
	prec = &(data->op);
	while (it && it->next)
	{
		if (((char*)(it->content))[0] == 'p'
			&& ((char*)(it->next->content))[0] == 'p'
			&& ((char*)(it->content))[1] != ((char*)(it->next->content))[1])
			clean_push(data, &prec, &it);
		else if (it->next->next && ((char*)(it->content))[0] == 'p'
				&& ((char*)(it->content))[1] == 'b'
				&& ((char*)(it->next->next->content))[0] == 'p'
				&& ((char*)(it->next->next->content))[1] == 'a'
				&& ft_strcmp((char*)(it->next->content), "rra") == 0)
			clean_swap(data, &prec, &it);
		else
		{
			prec = &(it->next);
			it = it->next;
		}
	}
}