/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   minishell.h                                        :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: mea <marvin@42.fr>                         +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2022/05/02 13:50:44 by narnaud           #+#    #+#             */
/*   Updated: 2022/05/06 13:30:59 by narnaud          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#ifndef MINISHELL_H
# define MINISHELL_H
# define ENVP_LIMIT  1024
# define PIPE_MAX_SIZE 8192
# define PATHS_MAX_SIZE 126
# define PROMPT_PREFIX 0
# define DEBUG 0

# include "libft/libft.h"
# include <fcntl.h>
# include <stdio.h>
# include <stdlib.h>
# include <readline/readline.h>
# include <readline/history.h>
# include <sys/types.h>
# include <sys/wait.h>
# include <signal.h>
# include <unistd.h>
# include <dirent.h>
# include <errno.h>
# include <termios.h>

typedef	struct	s_command
{
	char				**argv;
	int					fd[2];
	char				*heredoc;
	struct s_command	*next;
	struct s_command	*prev;
}	t_command;

typedef struct s_datas
{
	char				**envp;
	int					exit_code;
}	t_datas;
// ----------------------------------Errors.c
int		file_error(char *cmd, char *file, char *msg);

// ----------------------------------Utils.c
int		is_empty(char *line);
void	halt(int ret_code);
void	sigs_handler(int sig_num);
void	nothing(int sig_num);
void	handle_status(t_datas *datas, int status);

// ----------------------------------Builtins.c
int		close_minishell(int exit_code);
int		ft_echo(t_command *cmd);
int		ft_pwd(t_command *cmd);
int		ft_cd(t_command *cmd);

// ----------------------------------Env.c
int		is_valid_identifier(char *ident);
int		ft_unset(t_datas *datas, t_command *cmd);
int		ft_env(t_datas *datas, t_command *cmd);
int		ft_export(t_datas *datas, t_command *cmd);

// ----------------------------------Caller.c
void	exe(t_datas *datas, t_command *cmd);
int		builtin_call(t_datas *datas, t_command *cmd);
int		is_builtin(char *cmd);
pid_t	caller(t_datas *datas, t_command *cmd);
int		piper(t_datas *datas, t_command *cmd);

// ----------------------------------Parser.c
typedef enum e_type
{
	WORD,
	PIPE,
	OUT,
	ADD,
	IN,
	HD,
}			t_type;

typedef struct s_token
{
	char			*value;
	t_type			type;
	struct s_token	*next;
}			t_token;
char		*expend_str(t_datas *datas, char *line);
size_t		count_arguments(t_token *tok);
void		update_redir(t_datas *datas, t_command *cmd, t_token *tok);
t_command	*parser(t_datas *datas, t_token *tok, t_command *prev);

// ----------------------------------Lexer.c
typedef enum e_state
{
	OLD_ST,
	ROOT_ST,
	S_QUOTE_ST,
	D_QUOTE_ST,
}		t_state;

typedef struct s_lex
{
	t_state		state;
	t_type		type;
	t_type		next_type;
	t_token		*tokens;
	int			n_elem;
}		t_lexer;

int		create_token(t_lexer *lex, char str[]);
int		check_register(t_lexer *lex, char **line, char *tmp);
int		replace_var(t_datas *datas, char **line, char *tmp, int tmp_i);
int		check_state(t_lexer *lex, char **line);
t_token	*lexer(t_datas *datas, char *line);

#endif