/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   pipex_utils2.c                                     :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: erey-bet <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/02/14 15:46:08 by erey-bet          #+#    #+#             */
/*   Updated: 2023/03/07 18:56:52 by erey-bet         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "pipex.h"

static int	open_close_pipe(t_data *data, int boolean, int file)
{
	if (!boolean)
	{
		if (!file)
			if (pipe(data->fd[0]) < 0)
				return (1);
		if (file)
			if (pipe(data->fd[1]) < 0)
				return (1);
	}
	else
	{
		if (!file)
			if (close(data->fd[0][0]) < 0 || close(data->fd[0][1]) < 0)
				return (1);
		if (file)
			if (close(data->fd[1][0]) < 0 || close(data->fd[1][1]) < 0)
				return (1);
	}
	return (0);
}

static void	choice_command(int argc, t_data data, int i)
{
	if (i == 0)
		cmd(data, i, 0);
	else if (i + 1 < argc - 3)
		cmd(data, i, 1);
	else
		cmd(data, i, 2);
}

int	pipex_loop(int argc, int **fk, t_data data)
{
	int	i;

	i = -1;
	while (++i < argc - 3)
	{
		if (open_close_pipe(&data, 0, i % 2))
			return (1);
		if ((i > 0 || (i == 0 && data.fd1 > 0)) && data.cmds[i])
		{
			(*fk)[i] = fork();
			if ((*fk)[i] < 0)
				return (1);
			if ((*fk)[i] == 0)
				choice_command(argc, data, i);
		}
		if (i > 0)
			if (open_close_pipe(&data, 1, (i + 1) % 2))
				return (1);
	}
	return (open_close_pipe(&data, 1, (i + 1) % 2));
}

int	verification_command(char *argv[], t_data data)
{
	int	i;

	i = -1;
	while (++i < data.argc - 3)
	{
		data.cmds[i] = find_command(data.env, data.cmds[i]);
		if (data.cmds[i] == NULL)
		{
			print_error(1, argv[2 + i]);
			if (i == data.argc - 4)
				return (free_all(&data));
		}
	}
	return (0);
}