/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*-
 *
 * camel-folder.h: Abstract class for an email folder
 *
 * Authors: Bertrand Guiheneuf <bertrand@helixcode.com>
 *	    Michael Zucchi <notzed@ximian.com>
 *
 * Copyright 1999, 2000 Ximian, Inc. (www.ximian.com)
 *
 * This program is free software; you can redistribute it and/or 
 * modify it under the terms of version 2 of the GNU General Public 
 * License as published by the Free Software Foundation.
 *
 * 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
 */

#ifndef CAMEL_FOLDER_H
#define CAMEL_FOLDER_H 1


#ifdef __cplusplus
extern "C" {
#pragma }
#endif /* __cplusplus */

#include <glib.h>
#include <camel/camel-object.h>
#include <camel/camel-folder-summary.h>

#define CAMEL_FOLDER_TYPE     (camel_folder_get_type ())
#define CAMEL_FOLDER(obj)     (CAMEL_CHECK_CAST((obj), CAMEL_FOLDER_TYPE, CamelFolder))
#define CAMEL_FOLDER_CLASS(k) (CAMEL_CHECK_CLASS_CAST ((k), CAMEL_FOLDER_TYPE, CamelFolderClass))
#define CAMEL_IS_FOLDER(o)    (CAMEL_CHECK_TYPE((o), CAMEL_FOLDER_TYPE))

typedef struct _CamelFolderChangeInfo CamelFolderChangeInfo;

enum {
	CAMEL_FOLDER_ARG_FIRST = CAMEL_ARG_FIRST + 0x1000,
	CAMEL_FOLDER_ARG_NAME = CAMEL_FOLDER_ARG_FIRST,
	CAMEL_FOLDER_ARG_FULL_NAME,
	CAMEL_FOLDER_ARG_STORE,
	CAMEL_FOLDER_ARG_PERMANENTFLAGS,
	CAMEL_FOLDER_ARG_TOTAL,
	CAMEL_FOLDER_ARG_UNREAD,
	CAMEL_FOLDER_ARG_UID_ARRAY,
	CAMEL_FOLDER_ARG_INFO_ARRAY,
	CAMEL_FOLDER_ARG_PROPERTIES,
	CAMEL_FOLDER_ARG_LAST = CAMEL_ARG_FIRST + 0x2000,
};

enum {
	CAMEL_FOLDER_NAME = CAMEL_FOLDER_ARG_NAME | CAMEL_ARG_STR,
	CAMEL_FOLDER_FULL_NAME = CAMEL_FOLDER_ARG_FULL_NAME | CAMEL_ARG_STR,
	CAMEL_FOLDER_STORE = CAMEL_FOLDER_ARG_STORE | CAMEL_ARG_OBJ,
	CAMEL_FOLDER_PERMANENTFLAGS = CAMEL_FOLDER_ARG_PERMANENTFLAGS | CAMEL_ARG_INT,
	CAMEL_FOLDER_TOTAL = CAMEL_FOLDER_ARG_TOTAL | CAMEL_ARG_INT,
	CAMEL_FOLDER_UNREAD = CAMEL_FOLDER_ARG_UNREAD | CAMEL_ARG_INT,
	/* should we only get static data?  not stuff that needs to be free'd? */
	CAMEL_FOLDER_UID_ARRAY = CAMEL_FOLDER_ARG_UID_ARRAY | CAMEL_ARG_PTR,
	CAMEL_FOLDER_INFO_ARRAY = CAMEL_FOLDER_ARG_INFO_ARRAY | CAMEL_ARG_PTR,

	/* GSList of settable folder properties */
	CAMEL_FOLDER_PROPERTIES = CAMEL_FOLDER_ARG_PROPERTIES | CAMEL_ARG_PTR,
};

struct _CamelFolderChangeInfo {
	GPtrArray *uid_added;
	GPtrArray *uid_removed;
	GPtrArray *uid_changed;
	GPtrArray *uid_recent;

	struct _CamelFolderChangeInfoPrivate *priv;
};

struct _CamelFolder
{
	CamelObject parent_object;

	struct _CamelFolderPrivate *priv;

	/* get these via the :get() method, they might not be set otherwise */
	char *name;
	char *full_name;
	char *description;

	CamelStore *parent_store;
	CamelFolderSummary *summary;

	guint32 folder_flags;
	guint32 permanent_flags;
};

#define CAMEL_FOLDER_HAS_SUMMARY_CAPABILITY (1<<0)
#define CAMEL_FOLDER_HAS_SEARCH_CAPABILITY  (1<<1)
#define CAMEL_FOLDER_FILTER_RECENT          (1<<2)
#define CAMEL_FOLDER_HAS_BEEN_DELETED       (1<<3)
#define CAMEL_FOLDER_IS_TRASH               (1<<4)
#define CAMEL_FOLDER_IS_JUNK                (1<<5)
#define CAMEL_FOLDER_FILTER_JUNK  	    (1<<6)

typedef struct {
	CamelObjectClass parent_class;

	/* Virtual methods */	
	void   (*refresh_info) (CamelFolder *folder, CamelException *ex);

	void   (*sync) (CamelFolder *folder, gboolean expunge, 
			CamelException *ex);

	const char *  (*get_name)  (CamelFolder *folder);
	const char *  (*get_full_name)   (CamelFolder *folder);

	CamelStore *  (*get_parent_store) (CamelFolder *folder);

	void (*expunge)  (CamelFolder *folder, 
			  CamelException *ex);

	int   (*get_message_count)   (CamelFolder *folder);

	int   (*get_unread_message_count) (CamelFolder *folder);

	void (*append_message)  (CamelFolder *folder, 
				 CamelMimeMessage *message,
				 const CamelMessageInfo *info,
				 char **appended_uid,
				 CamelException *ex);
	
	guint32 (*get_permanent_flags) (CamelFolder *folder);
	guint32 (*get_message_flags)   (CamelFolder *folder,
					const char *uid);
	gboolean (*set_message_flags)   (CamelFolder *folder,
					 const char *uid,
					 guint32 flags, guint32 set);

	gboolean (*get_message_user_flag) (CamelFolder *folder,
					   const char *uid,
					   const char *name);
	void     (*set_message_user_flag) (CamelFolder *folder,
					   const char *uid,
					   const char *name,
					   gboolean value);

	const char * (*get_message_user_tag) (CamelFolder *folder,
					      const char *uid,
					      const char *name);
	void     (*set_message_user_tag) (CamelFolder *folder,
					  const char *uid,
					  const char *name,
					  const char *value);

	CamelMimeMessage * (*get_message)  (CamelFolder *folder, 
					    const char *uid, 
					    CamelException *ex);

	GPtrArray * (*get_uids)       (CamelFolder *folder);
	void (*free_uids)             (CamelFolder *folder,
				       GPtrArray *array);

	GPtrArray * (*get_summary)    (CamelFolder *folder);
	void (*free_summary)          (CamelFolder *folder,
				       GPtrArray *summary);

	gboolean (*has_search_capability) (CamelFolder *folder);

	GPtrArray * (*search_by_expression) (CamelFolder *, const char *, CamelException *);
	GPtrArray * (*search_by_uids) (CamelFolder *, const char *, GPtrArray *uids, CamelException *);

	void (*search_free) (CamelFolder *folder, GPtrArray *result);

	CamelMessageInfo * (*get_message_info) (CamelFolder *, const char *uid);
	void (*ref_message_info) (CamelFolder *, CamelMessageInfo *);
	void (*free_message_info) (CamelFolder *, CamelMessageInfo *);

	void (*transfer_messages_to) (CamelFolder *source,
				      GPtrArray *uids,
				      CamelFolder *destination,
				      GPtrArray **transferred_uids,
				      gboolean delete_originals,
				      CamelException *ex);
	
	void (*delete)           (CamelFolder *folder);
	void (*rename)           (CamelFolder *folder, const char *newname);
	
	void     (*freeze)    (CamelFolder *folder);
	void     (*thaw)      (CamelFolder *folder);
	gboolean (*is_frozen) (CamelFolder *folder);
} CamelFolderClass;

/* Standard Camel function */
CamelType camel_folder_get_type (void);


/* public methods */
void               camel_folder_construct              (CamelFolder *folder,
							CamelStore *parent_store,
							const char *full_name,
							const char *name);

void               camel_folder_refresh_info           (CamelFolder * folder, 
							CamelException * ex);
void               camel_folder_sync                   (CamelFolder *folder, 
							gboolean expunge, 
							CamelException *ex);

CamelStore *       camel_folder_get_parent_store       (CamelFolder *folder);


/* delete operations */
void		   camel_folder_expunge                (CamelFolder *folder, 
							CamelException *ex);


/* folder name operations */
const char *      camel_folder_get_name                (CamelFolder *folder);
const char *      camel_folder_get_full_name           (CamelFolder *folder);


/* various properties accessors */
guint32		   camel_folder_get_permanent_flags    (CamelFolder *folder);

guint32		   camel_folder_get_message_flags      (CamelFolder *folder,
							const char *uid);

gboolean	   camel_folder_set_message_flags      (CamelFolder *folder,
							const char *uid,
							guint32 flags,
							guint32 set);

gboolean	   camel_folder_get_message_user_flag  (CamelFolder *folder,
							const char *uid,
							const char *name);

void		   camel_folder_set_message_user_flag  (CamelFolder *folder,
							const char *uid,
							const char *name,
							gboolean value);
const char *	   camel_folder_get_message_user_tag  (CamelFolder *folder,
						       const char *uid,
						       const char *name);

void		   camel_folder_set_message_user_tag  (CamelFolder *folder,
						       const char *uid,
						       const char *name,
						       const char *value);



/* message manipulation */
void               camel_folder_append_message         (CamelFolder *folder, 
							CamelMimeMessage *message,
							const CamelMessageInfo *info,
							char **appended_uid,
							CamelException *ex);


/* summary related operations */
gboolean           camel_folder_has_summary_capability (CamelFolder *folder);


int                camel_folder_get_message_count     (CamelFolder *folder);

int                camel_folder_get_unread_message_count (CamelFolder *folder);

GPtrArray *        camel_folder_get_summary           (CamelFolder *folder);
void               camel_folder_free_summary          (CamelFolder *folder,
						       GPtrArray *array);

/* uid based access operations */
CamelMimeMessage * camel_folder_get_message           (CamelFolder *folder, 
						       const char *uid, 
						       CamelException *ex);
#define camel_folder_delete_message(folder, uid) \
	camel_folder_set_message_flags (folder, uid, CAMEL_MESSAGE_DELETED, CAMEL_MESSAGE_DELETED)

GPtrArray *        camel_folder_get_uids              (CamelFolder *folder);
void               camel_folder_free_uids             (CamelFolder *folder,
						       GPtrArray *array);

/* search api */
gboolean           camel_folder_has_search_capability (CamelFolder *folder);
GPtrArray *	   camel_folder_search_by_expression  (CamelFolder *folder, const char *expr, CamelException *ex);
GPtrArray *	   camel_folder_search_by_uids	      (CamelFolder *folder, const char *expr, GPtrArray *uids, CamelException *ex);
void		   camel_folder_search_free	      (CamelFolder *folder, GPtrArray *);

/* summary info */
CamelMessageInfo *camel_folder_get_message_info		(CamelFolder *folder, const char *uid);
void		  camel_folder_free_message_info	(CamelFolder *folder, CamelMessageInfo *info);
void		  camel_folder_ref_message_info		(CamelFolder *folder, CamelMessageInfo *info);

void               camel_folder_transfer_messages_to   (CamelFolder *source,
							GPtrArray *uids,
							CamelFolder *dest,
							GPtrArray **transferred_uids,
							gboolean delete_originals,
							CamelException *ex);

void               camel_folder_delete                 (CamelFolder *folder);
void               camel_folder_rename                 (CamelFolder *folder, const char *new);

/* stop/restart getting events */
void               camel_folder_freeze                (CamelFolder *folder);
void               camel_folder_thaw                  (CamelFolder *folder);
gboolean           camel_folder_is_frozen             (CamelFolder *folder);

#if 0
/* lock/unlock at the thread level, NOTE: only used internally */
void		   camel_folder_lock		      (CamelFolder *folder);
void		   camel_folder_unlock		      (CamelFolder *folder);
#endif

/* For use by subclasses (for free_{uids,summary,subfolder_names}) */
void camel_folder_free_nop     (CamelFolder *folder, GPtrArray *array);
void camel_folder_free_shallow (CamelFolder *folder, GPtrArray *array);
void camel_folder_free_deep    (CamelFolder *folder, GPtrArray *array);

/* update functions for change info */
CamelFolderChangeInfo *	camel_folder_change_info_new		(void);
void			camel_folder_change_info_clear		(CamelFolderChangeInfo *info);
void			camel_folder_change_info_free		(CamelFolderChangeInfo *info);
gboolean		camel_folder_change_info_changed	(CamelFolderChangeInfo *info);

/* for building diff's automatically */
void			camel_folder_change_info_add_source	(CamelFolderChangeInfo *info, const char *uid);
void			camel_folder_change_info_add_source_list(CamelFolderChangeInfo *info, const GPtrArray *list);
void			camel_folder_change_info_add_update	(CamelFolderChangeInfo *info, const char *uid);
void			camel_folder_change_info_add_update_list(CamelFolderChangeInfo *info, const GPtrArray *list);
void			camel_folder_change_info_build_diff	(CamelFolderChangeInfo *info);

/* for manipulating diff's directly */
void			camel_folder_change_info_cat		(CamelFolderChangeInfo *info, CamelFolderChangeInfo *s);
void			camel_folder_change_info_add_uid	(CamelFolderChangeInfo *info, const char *uid);
void			camel_folder_change_info_remove_uid	(CamelFolderChangeInfo *info, const char *uid);
void			camel_folder_change_info_change_uid	(CamelFolderChangeInfo *info, const char *uid);
void			camel_folder_change_info_recent_uid	(CamelFolderChangeInfo *info, const char *uid);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* CAMEL_FOLDER_H */

