/* ************************************************************************** */
/*                                                                            */
/*                                                        ::::::::            */
/*   token_parse.c                                      :+:    :+:            */
/*                                                     +:+                    */
/*   By: qmennen <qmennen@student.codam.nl>           +#+                     */
/*                                                   +#+                      */
/*   Created: 2025/02/05 19:10:17 by qmennen       #+#    #+#                 */
/*   Updated: 2025/02/26 16:15:19 by whaffman      ########   odam.nl         */
/*                                                                            */
/* ************************************************************************** */

#include "minishell.h"

static t_token_type	token_from_char(char c, int is_double)
{
	if (c == '<')
	{
		if (is_double)
			return (T_HEREDOC);
		return (T_REDIRECT_IN);
	}
	else if (c == '>')
	{
		if (is_double)
			return (T_APPEND_OUT);
		return (T_REDIRECT_OUT);
	}
	else if (c == '&' && is_double)
		return (T_AND);
	else if (c == '|')
	{
		if (is_double)
			return (T_OR);
		return (T_PIPE);
	}
	return (T_ERROR);
}

static char	*char_from_type(t_token_type type)
{
	if (type == T_HEREDOC)
		return ("<<");
	else if (type == T_REDIRECT_IN)
		return ("<");
	else if (type == T_APPEND_OUT)
		return (">>");
	else if (type == T_REDIRECT_OUT)
		return (">");
	else if (type == T_AND)
		return ("&&");
	else if (type == T_OR)
		return ("||");
	else if (type == T_PIPE)
		return ("|");
	return (NULL);
}

t_token	*token_parse(t_minishell *msh, t_lexer *lexer)
{
	int				is_double;
	char			c;
	t_token			*token;
	t_token_type	type;

	c = lexer->current_char;
	is_double = lexer->input[lexer->pos + 1] == c;
	type = token_from_char(c, is_double);
	token = token_new(msh, type, char_from_type(type), lexer->pos);
	if (is_double)
		lexer_readchar(lexer);
	lexer_readchar(lexer);
	return (token);
}