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/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* evolution-storage.c
 *
 * Copyright (C) 2000  Helix Code, Inc.
 *
 * 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.
 *
 * Author: Ettore Perazzoli
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <bonobo.h>

#include "Evolution.h"

#include "e-util/e-util.h"

#include "evolution-storage.h"


#define PARENT_TYPE BONOBO_OBJECT_TYPE
static BonoboObjectClass *parent_class = NULL;

struct _EvolutionStoragePrivate {
    char *name;

    Evolution_StorageRegistry corba_storage_registry;
    Evolution_StorageListener corba_storage_listener;
};


/* CORBA interface implementation.  */

static POA_Evolution_Storage__vepv Storage_vepv;

static POA_Evolution_Storage *
create_servant (void)
{
    POA_Evolution_Storage *servant;
    CORBA_Environment ev;

    servant = (POA_Evolution_Storage *) g_new0 (BonoboObjectServant, 1);
    servant->vepv = &Storage_vepv;

    CORBA_exception_init (&ev);

    POA_Evolution_Storage__init ((PortableServer_Servant) servant, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_free (servant);
        CORBA_exception_free (&ev);
        return NULL;
    }

    CORBA_exception_free (&ev);

    return servant;
}

static CORBA_char *
impl_Storage__get_name (PortableServer_Servant servant,
            CORBA_Environment *ev)
{
    BonoboObject *bonobo_object;
    EvolutionStorage *storage;
    EvolutionStoragePrivate *priv;

    bonobo_object = bonobo_object_from_servant (servant);
    storage = EVOLUTION_STORAGE (bonobo_object);
    priv = storage->priv;

    return CORBA_string_dup (priv->name);
}


/* GtkObject methods.  */

static void
destroy (GtkObject *object)
{
    EvolutionStorage *storage;
    EvolutionStoragePrivate *priv;
    CORBA_Environment ev;

    storage = EVOLUTION_STORAGE (object);
    priv = storage->priv;

    g_free (priv->name);

    CORBA_exception_init (&ev);

    if (priv->corba_storage_registry != CORBA_OBJECT_NIL) {
        Bonobo_Unknown_unref (priv->corba_storage_registry, &ev);
        CORBA_Object_release (priv->corba_storage_registry, &ev);
    }

    if (priv->corba_storage_listener != CORBA_OBJECT_NIL) {
        /* (This is not a Bonobo object, so no unref.)  */
        CORBA_Object_release (priv->corba_storage_listener, &ev);
    }

    CORBA_exception_free (&ev);

    g_free (priv);
}


static void
corba_class_init (void)
{
    POA_Evolution_Storage__vepv *vepv;
    POA_Evolution_Storage__epv *epv;
    PortableServer_ServantBase__epv *base_epv;

    base_epv = g_new0 (PortableServer_ServantBase__epv, 1);
    base_epv->_private    = NULL;
    base_epv->finalize    = NULL;
    base_epv->default_POA = NULL;

    epv = g_new0 (POA_Evolution_Storage__epv, 1);
    epv->_get_name = impl_Storage__get_name;

    vepv = &Storage_vepv;
    vepv->Bonobo_Unknown_epv = bonobo_object_get_epv ();
    vepv->Evolution_Storage_epv = epv;
}

static void
class_init (EvolutionStorageClass *klass)
{
    GtkObjectClass *object_class;

    object_class = GTK_OBJECT_CLASS (klass);
    object_class->destroy = destroy;

    parent_class = gtk_type_class (bonobo_object_get_type ());

    corba_class_init ();
}

static void
init (EvolutionStorage *storage)
{
    EvolutionStoragePrivate *priv;

    priv = g_new (EvolutionStoragePrivate, 1);
    priv->name                   = NULL;
    priv->corba_storage_listener = NULL;

    storage->priv = priv;
}


void
evolution_storage_construct (EvolutionStorage *storage,
                 Evolution_Storage corba_object,
                 const char *name)
{
    EvolutionStoragePrivate *priv;

    g_return_if_fail (storage != NULL);
    g_return_if_fail (EVOLUTION_IS_STORAGE (storage));
    g_return_if_fail (corba_object != CORBA_OBJECT_NIL);
    g_return_if_fail (name != NULL);
    g_return_if_fail (name[0] != '\0');

    bonobo_object_construct (BONOBO_OBJECT (storage), corba_object);

    priv = storage->priv;
    priv->name = g_strdup (name);
}

EvolutionStorage *
evolution_storage_new (const char *name)
{
    EvolutionStorage *new;
    POA_Evolution_Storage *servant;
    Evolution_Storage corba_object;

    g_return_val_if_fail (name != NULL, NULL);
    g_return_val_if_fail (name[0] != '\0', NULL);

    servant = create_servant ();
    if (servant == NULL)
        return NULL;

    new = gtk_type_new (evolution_storage_get_type ());

    corba_object = bonobo_object_activate_servant (BONOBO_OBJECT (new), servant);
    evolution_storage_construct (new, corba_object, name);

    return new;
}

EvolutionStorageResult
evolution_storage_register (EvolutionStorage *evolution_storage,
                Evolution_StorageRegistry corba_storage_registry)
{
    EvolutionStorageResult result;
    Evolution_StorageListener corba_storage_listener;
    Evolution_Storage corba_storage;
    EvolutionStoragePrivate *priv;
    CORBA_Environment ev;

    g_return_val_if_fail (evolution_storage != NULL,
                  EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (EVOLUTION_IS_STORAGE (evolution_storage),
                  EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (corba_storage_registry != CORBA_OBJECT_NIL,
                  EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);

    priv = evolution_storage->priv;

    if (priv->corba_storage_listener != CORBA_OBJECT_NIL)
        return EVOLUTION_STORAGE_ERROR_ALREADYREGISTERED;

    CORBA_exception_init (&ev);

    corba_storage = bonobo_object_corba_objref (BONOBO_OBJECT (evolution_storage));
    corba_storage_listener = Evolution_StorageRegistry_register_storage (corba_storage_registry,
                                         corba_storage,
                                         "pippo", &ev);

    if (ev._major == CORBA_NO_EXCEPTION) {
        Bonobo_Unknown_ref (corba_storage_registry, &ev);
        priv->corba_storage_registry = CORBA_Object_duplicate (corba_storage_registry, &ev);

        priv->corba_storage_listener = corba_storage_listener;

        result = EVOLUTION_STORAGE_OK;
    } else {
        if (ev._major != CORBA_USER_EXCEPTION)
            result = EVOLUTION_STORAGE_ERROR_CORBA;
        else if (strcmp (CORBA_exception_id (&ev), ex_Evolution_StorageRegistry_Exists) == 0)
            result = EVOLUTION_STORAGE_ERROR_EXISTS;
        else
            result = EVOLUTION_STORAGE_ERROR_GENERIC;
    }

    CORBA_exception_free (&ev);

    return result;
}

EvolutionStorageResult
evolution_storage_register_on_shell (EvolutionStorage *evolution_storage,
                     Evolution_Shell corba_shell)
{
    Evolution_StorageRegistry corba_storage_registry;
    EvolutionStorageResult result;
    CORBA_Environment ev;

    g_return_val_if_fail (evolution_storage != NULL,
                  EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (EVOLUTION_IS_STORAGE (evolution_storage),
                  EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (corba_shell != CORBA_OBJECT_NIL,
                  EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);

    CORBA_exception_init (&ev);

    corba_storage_registry = Bonobo_Unknown_query_interface (corba_shell,
                                 "IDL:Evolution/StorageRegistry:1.0",
                                 &ev);
    if (corba_storage_registry == CORBA_OBJECT_NIL || ev._major != CORBA_NO_EXCEPTION) {
        CORBA_exception_free (&ev);
        return EVOLUTION_STORAGE_ERROR_NOREGISTRY;
    }

    result = evolution_storage_register (evolution_storage, corba_storage_registry);

    Bonobo_Unknown_unref (corba_storage_registry, &ev);
    CORBA_Object_release (corba_storage_registry, &ev);

    CORBA_exception_free (&ev);

    return result;
}

EvolutionStorageResult
evolution_storage_new_folder (EvolutionStorage *evolution_storage,
                  const char *path,
                  const char *type,
                  const char *physical_uri,
                  const char *description)
{
    EvolutionStorageResult result;
    EvolutionStoragePrivate *priv;
    Evolution_Folder corba_folder;
    CORBA_Environment ev;
    const char *path_basename;
    char *parent_path;

    g_return_val_if_fail (evolution_storage != NULL,
                  EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (EVOLUTION_IS_STORAGE (evolution_storage),
                  EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (path != NULL, EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (g_path_is_absolute (path), EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (description != NULL, EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (type != NULL, EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (physical_uri != NULL, EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);

    priv = evolution_storage->priv;

    path_basename = g_basename (path);

    /* Yuck.  */
    corba_folder.name = (CORBA_char *) path_basename;
    corba_folder.description = (CORBA_char *) description;
    corba_folder.type = (CORBA_char *) type;
    corba_folder.physical_uri = (CORBA_char *) physical_uri;

    if (path_basename - path > 1) {
        parent_path = g_strndup (path, path_basename - path - 1);
    } else {
        parent_path = g_strdup (G_DIR_SEPARATOR_S);
    }

    CORBA_exception_init (&ev);

    Evolution_StorageListener_new_folder (priv->corba_storage_listener, parent_path,
                          &corba_folder, &ev);

    if (ev._major == CORBA_NO_EXCEPTION)
        result = EVOLUTION_STORAGE_OK;
    else if (ev._major != CORBA_USER_EXCEPTION)
        result = EVOLUTION_STORAGE_ERROR_CORBA;
    else if (strcmp (CORBA_exception_id (&ev), ex_Evolution_StorageListener_Exists) == 0)
        result = EVOLUTION_STORAGE_ERROR_EXISTS;
    else
        result = EVOLUTION_STORAGE_ERROR_GENERIC;

    CORBA_exception_free (&ev);

    g_free (parent_path);

    return result;
}

EvolutionStorageResult
evolution_storage_removed_folder (EvolutionStorage *evolution_storage,
                  const char *path)
{
    EvolutionStorageResult result;
    EvolutionStoragePrivate *priv;
    CORBA_Environment ev;

    g_return_val_if_fail (evolution_storage != NULL,
                  EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (EVOLUTION_IS_STORAGE (evolution_storage),
                  EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (path != NULL, EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);
    g_return_val_if_fail (g_path_is_absolute (path), EVOLUTION_STORAGE_ERROR_INVALIDPARAMETER);

    priv = evolution_storage->priv;

    if (priv->corba_storage_listener == CORBA_OBJECT_NIL)
        return EVOLUTION_STORAGE_ERROR_NOTREGISTERED;

    CORBA_exception_init (&ev);

    Evolution_StorageListener_removed_folder (priv->corba_storage_listener, path, &ev);

    if (ev._major == CORBA_NO_EXCEPTION)
        result = EVOLUTION_STORAGE_OK;
    else if (ev._major != CORBA_USER_EXCEPTION)
        result = EVOLUTION_STORAGE_ERROR_CORBA;
    else if (strcmp (CORBA_exception_id (&ev), ex_Evolution_StorageListener_NotFound) == 0)
        result = EVOLUTION_STORAGE_ERROR_NOTFOUND;
    else
        result = EVOLUTION_STORAGE_ERROR_GENERIC;

    CORBA_exception_free (&ev);

    return result;
}


E_MAKE_TYPE (evolution_storage, "EvolutionStorage", EvolutionStorage, class_init, init, PARENT_TYPE)