/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   expander.c                                         :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: lderidde <lderidde@student.s19.be>        +#+  +:+       +#+         */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2025/02/07 10:23:02 by lderidde          #+#    #+#             */
/*   Updated: 2025/02/08 15:56:26 by lderidde         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "../../includes/exec/expander.h"

void	remove_quote(t_ast_n *node, int j, char c)
{
	char	*new;
	int		i;
	int		k;
	int		len;

	i = 0;
	k = 0;
	len = ft_strlen(node->args[j]);
	new = ft_calloc(len - 1, sizeof(char));
	while (i < len - 2)
	{
		if ((&(node->args[j][k]) == ft_strchr(node->args[j], c)) ||
	  		(&(node->args[j][k]) == ft_strrchr(node->args[j], c)))
		{
			k++;
		}
		else
			new[i++] = node->args[j][k++];
	}
	ft_free(&node->args[j]);
	node->args[j] = new;
}

int ifremove_quote(t_ast_n *node, int j)
{
	char	c;
	int		ret;
	
	ret = 0;
	if (!ft_strchr(node->args[j], '\'') && !ft_strchr(node->args[j], '\"'))
		c = 0;
	else if (!ft_strchr(node->args[j], '\"'))
		c = '\'';
	else if (!ft_strchr(node->args[j], '\''))
		c = '\"';
	else if (ft_strchr(node->args[j], '\'') < ft_strchr(node->args[j], '\"'))
		c = '\'';
	else
		c = '\"';
	if (c && (ft_strchr(node->args[j], c) && ft_strrchr(node->args[j], c)))
		remove_quote(node, j, c);
	if (c)
		ret = 1;
	return (ret);
}

char	**arrange_tabs(t_ast_n *node, char **tab, int j)
{
	int	save;
	int	i;
	int	k;
	int	len;
	char	**new_arg;

	i = 0;
	k = 0;
	len = 0;
	save = count_var(node->args) + count_var(tab);
	new_arg = ft_calloc(sizeof(char *), save);
	while (i < save - 1)
	{
		if (i == j)
		{
			while (tab[k])
				new_arg[i++] = ft_strdup(tab[k++]);
			len++;
		}
		else
			new_arg[i++] = ft_strdup(node->args[len++]);
	}
	return (new_arg);
}

void	split_tab(t_ast_n *node, int j)
{
	char	**tab;
	char	**new_arg;


	tab =ft_split(node->args[j], " ");
	new_arg = arrange_tabs(node, tab, j);
	free_tab(tab);
	free_tab(node->args);
	node->args = new_arg;
}

t_ast_n	*expand_node(t_ast_n *node)
{
	int	i;
	int	check;

	i = -1;
	while (node->args[++i])
	{
		check = 0;
		if (expand_tilde(node, i))
			check = 1;
		if (expand_var(node, i))
			check = 1;
		if (!ifremove_quote(node, i) && check)
			split_tab(node, i);
		ft_free(&node->cmd);
		node->cmd = ft_strdup(node->args[0]);
	}
	return (node);
}