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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-mh-folder.c : Abstract class for an email folder */

/* 
 *
 * Copyright (C) 1999 Bertrand Guiheneuf <Bertrand.Guiheneuf@inria.fr> .
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

#include "camel-mh-folder.h"
#include "camel-mh-store.h"
#include "gstring-util.h"
#include <sys/stat.h>
#include <unistd.h>
#include <sys/types.h>
#include <fcntl.h>
 


static CamelFolderClass *parent_class=NULL;

/* Returns the class for a CamelMhFolder */
#define CMHF_CLASS(so) CAMEL_MH_FOLDER_CLASS (GTK_OBJECT(so)->klass)
#define CF_CLASS(so) CAMEL_FOLDER_CLASS (GTK_OBJECT(so)->klass)
#define CMHS_CLASS(so) CAMEL_STORE_CLASS (GTK_OBJECT(so)->klass)

static void _set_name(CamelFolder *folder, const gchar *name);
static void _init_with_store (CamelFolder *folder, CamelStore *parent_store);
static gboolean _exists (CamelFolder *folder);
static gboolean _create(CamelFolder *folder);

static void
camel_mh_folder_class_init (CamelMhFolderClass *camel_mh_folder_class)
{
    CamelFolderClass *camel_folder_class = CAMEL_FOLDER_CLASS(camel_mh_folder_class);

    parent_class = gtk_type_class (camel_folder_get_type ());
        
    /* virtual method definition */
    /* virtual method overload */
    camel_folder_class->init_with_store = _init_with_store;
    camel_folder_class->set_name = _set_name;
    camel_folder_class->exists = _exists;
    
}







GtkType
camel_mh_folder_get_type (void)
{
    static GtkType camel_mh_folder_type = 0;
    
    if (!camel_mh_folder_type)  {
        GtkTypeInfo camel_mh_folder_info =  
        {
            "CamelMhFolder",
            sizeof (CamelMhFolder),
            sizeof (CamelMhFolderClass),
            (GtkClassInitFunc) camel_mh_folder_class_init,
            (GtkObjectInitFunc) NULL,
                /* reserved_1 */ NULL,
                /* reserved_2 */ NULL,
            (GtkClassInitFunc) NULL,
        };
        
        camel_mh_folder_type = gtk_type_unique (CAMEL_FOLDER_TYPE, &camel_mh_folder_info);
    }
    
    return camel_mh_folder_type;
}




static void 
_init_with_store (CamelFolder *folder, CamelStore *parent_store)
{
    /* call parent method */
    parent_class->init_with_store (folder, parent_store);
    
    folder->can_hold_messages = TRUE;
    folder->can_hold_folders = TRUE;
}



/**
 * camel_mh_folder_set_name: set the name of an MH folder
 * @folder: the folder to set the name
 * @name: a string representing the (short) name
 * 
 * 
 * 
 **/
static void
_set_name (CamelFolder *folder, const gchar *name)
{
    CamelMhFolder *mh_folder = CAMEL_MH_FOLDER(folder);
    const gchar *root_dir_path;
    gchar *full_name;
    const gchar *parent_full_name;
    gchar separator;

    g_assert(folder);
    g_assert(name);
    g_assert(folder->parent_store);

    /* call default implementation */
    parent_class->set_name (folder, name);
    
    if (mh_folder->directory_path) g_free (mh_folder->directory_path);
    
    separator = camel_store_get_separator (folder->parent_store);
    root_dir_path = camel_mh_store_get_toplevel_dir (CAMEL_MH_STORE(folder->parent_store));
    
    mh_folder->directory_path = g_strdup_printf ("%s%c%s", root_dir_path, separator, folder->full_name);

}



static gboolean
_exists (CamelFolder *folder)
{
    CamelMhFolder *mh_folder = CAMEL_MH_FOLDER(folder);
    struct stat stat_buf;
    gint stat_error;
    gboolean exists;

    g_assert (folder);

    if (!mh_folder->directory_path)  return FALSE;

    stat_error = stat (mh_folder->directory_path, &stat_buf);
    if (stat_error == -1)  return FALSE;

    exists = S_ISDIR(stat_buf.st_mode);
    return exists;
}


static gboolean
_create(CamelFolder *folder)
{
    CamelMhFolder *mh_folder = CAMEL_MH_FOLDER(folder);
    const gchar *directory_path;
    mode_t dir_mode = S_IRWXU;
    gint mkdir_error;

    g_assert(folder);

    /* call default implementation */
    parent_class->create (folder);

    directory_path = mh_folder->directory_path;
    if (!directory_path) return FALSE;
    
    if (camel_folder_exists (folder)) return TRUE;
    
    mkdir_error = mkdir (directory_path, dir_mode);
    return (mkdir_error == -1);
}



static gboolean
_delete (CamelFolder *folder, gboolean recurse)
{

    CamelMhFolder *mh_folder = CAMEL_MH_FOLDER(folder);
    const gchar *directory_path;
    gint rmdir_error;
    
    g_assert(folder);

    /* call default implementation */
    parent_class->delete (folder, recurse);

    directory_path = mh_folder->directory_path;
    if (!directory_path) return FALSE;
    
    if (!camel_folder_exists (folder)) return TRUE;

    
    rmdir_error = rmdir (directory_path);

}