/* ************************************************************************** */
/*                                                                            */
/*                                                        ::::::::            */
/*   builtin_export.c                                   :+:    :+:            */
/*                                                     +:+                    */
/*   By: whaffman <whaffman@student.codam.nl>         +#+                     */
/*                                                   +#+                      */
/*   Created: 2025/02/20 11:32:53 by whaffman      #+#    #+#                 */
/*   Updated: 2025/03/04 16:41:06 by whaffman      ########   odam.nl         */
/*                                                                            */
/* ************************************************************************** */

#include "minishell.h"

static int	ft_isvalid_identifier(char *str)
{
	if (ft_isalpha(*str) == FALSE && *str != '_')
		return (FALSE);
	while (*str != '\0')
	{
		if (ft_isalnum(*str) == FALSE && *str != '_')
			return (FALSE);
		str++;
	}
	return (TRUE);
}

int	builtin_export(t_minishell *msh, t_command *cmd)
{
	char			*err;
	char			**arr;
	int				i;

	i = 0;
	arr = NULL;
	if (cmd->args[1] == NULL)
		environment_print(msh, TRUE);
	while (cmd->args[++i] != NULL)
	{
		arr = ft_split_safe(msh, cmd->args[i], '=');
		if (arr != NULL && arr[0] != NULL && ft_isvalid_identifier(arr[0]) == TRUE)
			environment_update(msh, arr[0], arr[1]);
		else
		{
			err = ft_strjoin_safe(msh, cmd->args[1], ": not a valid identifier");
			error_msg("export", err);
			return (ft_free_arr_safe(msh, arr), EXIT_FAILURE);
		}
		ft_free_arr_safe(msh, arr);
	}
	return (EXIT_SUCCESS);
}