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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * 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, see
 * <https://www.gnu.org/licenses/>.
 *
 * Authors:
 *   James Willcox <jwillcox@cs.indiana.edu>
 */

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

#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/time.h>
#include <sys/stat.h>
#include <time.h>
#include <gtk/gtk.h>
#include <libgnomevfs/gnome-vfs.h>
#include <libgnomevfs/gnome-vfs-mime-utils.h>
#include <gconf/gconf-client.h>
#include "egg-recent-model.h"
#include "egg-recent-item.h"

#define EGG_RECENT_MODEL_FILE_PATH "/.recently-used"
#define EGG_RECENT_MODEL_BUFFER_SIZE 8192

#define EGG_RECENT_MODEL_MAX_ITEMS 500
#define EGG_RECENT_MODEL_DEFAULT_LIMIT 10
#define EGG_RECENT_MODEL_TIMEOUT_LENGTH 200
#define EGG_RECENT_MODEL_POLL_TIME 3

/* needed for Darwin */
#if !HAVE_DECL_LOCKF
int lockf (int filedes, int function, off_t size);
#endif

#define EGG_RECENT_MODEL_KEY_DIR "/desktop/gnome/recent_files"
#define EGG_RECENT_MODEL_DEFAULT_LIMIT_KEY EGG_RECENT_MODEL_KEY_DIR "/default_limit"
#define EGG_RECENT_MODEL_EXPIRE_KEY EGG_RECENT_MODEL_KEY_DIR "/expire"

struct _EggRecentModelPrivate {
	GSList *mime_filter_values;	/* list of mime types we allow */
	GSList *group_filter_values;	/* list of groups we allow */
	GSList *scheme_filter_values;	/* list of URI schemes we allow */

	EggRecentModelSort sort_type; /* type of sorting to be done */

	int limit;			/* soft limit for length of the list */
	int expire_days;		/* number of days to hold an item */

	char *path;			/* path to the file we store stuff in */

	GHashTable *monitors;

	GnomeVFSMonitorHandle *monitor;

	GConfClient *client;
	gboolean use_default_limit;

	guint limit_change_notify_id;
	guint expiration_change_notify_id;

	guint changed_timeout;
	guint poll_timeout;
	time_t last_mtime;
};

/* signals */
enum {
	CHANGED,
	LAST_SIGNAL
};

static GType model_signals[LAST_SIGNAL] = { 0 };

/* properties */
enum {
	PROP_BOGUS,
	PROP_MIME_FILTERS,
	PROP_GROUP_FILTERS,
	PROP_SCHEME_FILTERS,
	PROP_SORT_TYPE,
	PROP_LIMIT
};

typedef struct {
	GSList *states;
	GList *items;
	EggRecentItem *current_item;
} ParseInfo;

typedef enum {
	STATE_START,
	STATE_RECENT_FILES,
	STATE_RECENT_ITEM,
	STATE_URI,
	STATE_MIME_TYPE,