/* -*- 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, /* unread messages */
    CAMEL_FOLDER_ARG_DELETED, /* deleted messages */
    CAMEL_FOLDER_ARG_JUNKED, /* junked messages */
    CAMEL_FOLDER_ARG_VISIBLE, /* visible !(deleted or junked) */
    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,
    CAMEL_FOLDER_DELETED = CAMEL_FOLDER_ARG_DELETED | CAMEL_ARG_INT,
    CAMEL_FOLDER_JUNKED = CAMEL_FOLDER_ARG_JUNKED | CAMEL_ARG_INT,
    CAMEL_FOLDER_VISIBLE = CAMEL_FOLDER_ARG_VISIBLE | CAMEL_ARG_INT,

    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);
    int   (*get_deleted_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,