/*
  Copyright (C) 2015  ABRT team

  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

  ------------------------------------------------------------------------------

  This file declares functions for org.freedesktop.Problems2.Entry interface.

  Proxy for problem directories. Entry can be in one of three states. The
  states are need to distinguish between just created problem directories (i.e.
  not yet processed by abrtd), directories already accepted by abrtd
  ("post-create" finished successfully) and directories that were removed
  (because there would be a room for race conditions -> remove directory vs.
  destroy the corresponding D-Bus proxy).
*/
#ifndef ABRT_P2_ENTRY_H
#define ABRT_P2_ENTRY_H

#include "libabrt.h"

#include <glib-object.h>
#include <gio/gio.h>

G_BEGIN_DECLS

#define TYPE_ABRT_P2_ENTRY abrt_p2_entry_get_type ()
G_DECLARE_FINAL_TYPE(AbrtP2Entry, abrt_p2_entry, ABRT_P2, ENTRY, GObject)

AbrtP2Entry *abrt_p2_entry_new(char *dirname);

typedef enum {
    ABRT_P2_ENTRY_STATE_NEW,      ///< not yet processed by abrtd
    ABRT_P2_ENTRY_STATE_COMPLETE, ///< already processed by abrtd
    ABRT_P2_ENTRY_STATE_DELETED,  ///< just removed
} AbrtP2EntryState;

AbrtP2Entry *abrt_p2_entry_new_with_state(char *dirname,
            AbrtP2EntryState state);

AbrtP2EntryState abrt_p2_entry_state(AbrtP2Entry *entry);

void abrt_p2_entry_set_state(AbrtP2Entry *entry,
            AbrtP2EntryState state);

int abrt_p2_entry_delete(AbrtP2Entry *entry,
            uid_t caller_uid,
            GError **error);

int abrt_p2_entry_accessible_by_uid(AbrtP2Entry *entry,
            uid_t uid,
            struct dump_dir **dd);

const char *abrt_p2_entry_problem_id(AbrtP2Entry *entry);

struct dump_dir *abrt_p2_entry_open_dump_dir(AbrtP2Entry *entry,
            uid_t caller_uid,
            int dd_flags,
            GError **error);

GVariant *abrt_p2_entry_problem_data(AbrtP2Entry *entry,
            uid_t caller_uid,
            GError **error);

GVariant *abrt_p2_entry_delete_elements(AbrtP2Entry *entry,
            uid_t caller_uid,
            GVariant *elements,
            GError **error);

/*
 * Properties
 */
uid_t abrt_p2_entry_get_owner(AbrtP2Entry *entry, GError **error);

/*
 * Read elements
 */
enum AbrtP2EntryReadElementsFlags
{
    ABRT_P2_ENTRY_READ_ALL_FD             = 0x01,
    ABRT_P2_ENTRY_READ_ALL_TYPES          = 0x02,
    ABRT_P2_ENTRY_READ_ONLY_TEXT          = 0x04,
    ABRT_P2_ENTRY_READ_ONLY_BIG_TEXT      = 0x08,
    ABRT_P2_ENTRY_READ_ONLY_BINARY        = 0x10,
    ABRT_P2_ENTRY_READ_ALL_NO_FD          = 0x20,
};

GVariant *abrt_p2_entry_read_elements(AbrtP2Entry *entry,
            gint32 flags,
            GVariant *elements,
            GUnixFDList *fd_list,
            uid_t caller_uid,
            long max_size,
            long max_unix_fds,
            GError **error);

void abrt_p2_entry_read_elements_async(AbrtP2Entry *entry,
            gint32 flags,
            GVariant *elements,
            GUnixFDList *fd_list,
            uid_t caller_uid,
            long max_size,
            long max_unix_fds,
            GCancellable *cancellable,
            GAsyncReadyCallback callback,
            gpointer user_data);

GVariant *abrt_p2_entry_read_elements_finish(AbrtP2Entry *entry,
            GAsyncResult *result,
            GError **error);

/*
 * Save elements
 */
enum AbrP2EntrySaveElementsFlags
{
    ABRT_P2_ENTRY_IO_ERROR_FATAL             = (1 << 0),
    ABRT_P2_ENTRY_UNSUPPORTED_ERROR_FATAL    = (1 << 1),
    ABRT_P2_ENTRY_ELEMENTS_COUNT_LIMIT_FATAL = (1 << 2),
    ABRT_P2_ENTRY_DATA_SIZE_LIMIT_FATAL      = (1 << 3),

    ABRT_P2_ENTRY_ALL_FATAL =(  ABRT_P2_ENTRY_IO_ERROR_FATAL
                    | ABRT_P2_ENTRY_UNSUPPORTED_ERROR_FATAL
                    | ABRT_P2_ENTRY_ELEMENTS_COUNT_LIMIT_FATAL
                    | ABRT_P2_ENTRY_DATA_SIZE_LIMIT_FATAL),
};

typedef struct
{
    unsigned elements_count;
    off_t    data_size;
} AbrtP2EntrySaveElementsLimits;

#define ABRT_P2_ENTRY_SAVE_ELEMENTS_LIMITS_INITIALIZER(l, ec, ds) \
        do  { (l).elements_count = (ec); (l).data_size = (ds); } while (0)

#define ABRT_P2_ENTRY_SAVE_ELEMENTS_LIMITS_ON_STACK(l, ec, ds) \
        AbrtP2EntrySaveElementsLimits l; \
        ABRT_P2_ENTRY_SAVE_ELEMENTS_LIMITS_INITIALIZER(l, ec, ds);


GVariant *abrt_p2_entry_save_elements(AbrtP2Entry *entry,
            gint32 flags,
            GVariant *elements,
            GUnixFDList *fd_list,
            uid_t caller_uid,
            AbrtP2EntrySaveElementsLimits *limits,
            GError **error);

void abrt_p2_entry_save_elements_async(AbrtP2Entry *entry,
            gint32 flags,
            GVariant *elements,
            GUnixFDList *fd_list,
            uid_t caller_uid,
            AbrtP2EntrySaveElementsLimits *limits,
            GCancellable *cancellable,
            GAsyncReadyCallback callback,
            gpointer user_data);

GVariant *abrt_p2_entry_save_elements_finish(AbrtP2Entry *entry,
            GAsyncResult *result,
            GError **error);

/*
 * Utility functions
 */
int abrt_p2_entry_save_elements_in_dump_dir(struct dump_dir *dd,
            gint32 flags,
            GVariant *elements,
            GUnixFDList *fd_list,
            uid_t caller_uid,
            AbrtP2EntrySaveElementsLimits *limits,
            GError **error);

G_END_DECLS

#endif/*ABRT_P2_ENTRY_H*/