/*
 * Copyright (C) 2017 Pietro Cerutti <gahr@gahr.ch>
 * 
 *     This program is free software; you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation; either version 2 of the License, or
 *     (at your option) any later version.
 * 
 *     This program is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of
 *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *     GNU General Public License for more details.
 * 
 *     You should have received a copy of the GNU General Public License
 *     along with this program; if not, write to the Free Software
 *     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */ 

#ifndef TAILQ_H
#define TAILQ_H

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "queue.h"

#define NONULL(x) ((!(x) || !*(x)) ? "" : x)
#define FREE(x) free(*x)
#define safe_malloc malloc
#define safe_strdup strdup
#define ascii_strcasecmp strcasecmp


TAILQ_HEAD(TailQHead, TailQNode);
struct TailQNode
{
  TAILQ_ENTRY(TailQNode) entries;
  char *data;
};

static inline struct TailQNode * mutt_tailq_new_node(const char *s)
{
  const char *ns = NONULL(s);
  struct TailQNode *node = safe_malloc(sizeof (struct TailQNode));
  node->data = safe_strdup(ns);
  return node;
}

static inline void mutt_tailq_add(struct TailQHead *dst, const char *s)
{
  TAILQ_INSERT_TAIL(dst, mutt_tailq_new_node(s), entries);
}

static inline void mutt_tailq_remove(struct TailQHead *h, const char *s)
{
    struct TailQNode *node, *tmp;
    TAILQ_FOREACH_SAFE(node, h, entries, tmp)
    {
        if (ascii_strcasecmp(node->data, s) == 0)
        {
            TAILQ_REMOVE(h, node, entries);
            FREE(&node->data);
            FREE(&node);
            return;
        }
    }
}

struct TailQHead AliasFiles = TAILQ_HEAD_INITIALIZER(AliasFiles);

int main()
{
    mutt_tailq_add(&AliasFiles, "./muttrc");
    mutt_tailq_remove(&AliasFiles, "./muttrc");
    return 0;
}


#endif /* TAILQ_H */