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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2019 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef SCFG_H
#define	SCFG_H

#include <ucx/string.h>
#include <stdbool.h>
#include <libidav/webdav.h>
#include <regex.h>

#include "db.h"
#include "tags.h"

#ifdef	__cplusplus
extern "C" {
#endif

#define SYNC_CMD_PULL    1
#define SYNC_CMD_PUSH    2
#define SYNC_CMD_ARCHIVE 4
#define SYNC_CMD_RESTORE 8
    
#define SYNC_SYMLINK_SYNC            1
#define SYNC_SYMLINK_EXTERN_NOFOLLOW 2
#define SYNC_SYMLINK_INTERN_NOFOLLOW 4
    
#define DEFAULT_TAG_XATTR "tags"
#define MACOS_TAG_XATTR "com.apple.metadata:_kMDItemUserTags"
    
#define SYNC_SYMLINK(dir) \
    (((dir)->symlink & SYNC_SYMLINK_SYNC) == SYNC_SYMLINK_SYNC)
    
typedef struct TagConfig   TagConfig;
typedef struct Versioning  Versioning;
typedef struct SplitConfig SplitConfig;
    
typedef struct SyncDirectory {
    char *name;
    char *path;
    char *trash;
    char *collection;
    char *repository;
    char *database;
    TagConfig *tagconfig;
    Versioning *versioning;
    UcxList *include;
    UcxList *exclude;
    UcxList *tagfilter;
    UcxList *splitconfig;
    uint32_t metadata;
    int max_retry;
    int allow_cmd;
    uint32_t symlink;
    time_t lock_timeout;
    bool backuppull;
    bool lockpull;
    bool lockpush;
    bool hashing;
    uint32_t db_settings;
} SyncDirectory;

struct SplitConfig {
    /*
     * path regex pattern or NULL
     */
    regex_t *pattern;
    
    /*
     * minimum file size for activating file splitting
     * a value of -1 means no size restriction
     */
    int64_t minsize;
    
    /*
     * split files into blocks with this size
     */
    size_t blocksize;
};

enum TagFormat {
    TAG_FORMAT_TEXT = 0,
    TAG_FORMAT_CSV,
    TAG_FORMAT_XML,
    TAG_FORMAT_MACOS,
    TAG_FORMAT_UNKNOWN
};
typedef enum TagFormat TagFormat;

enum TagStore {
    TAG_STORE_XATTR = 0,
    TAG_STORE_UNKNOWN
};
typedef enum TagStore TagStore;

enum TagConflict {
    TAG_NO_CONFLICT = 0,
    TAG_KEEP_LOCAL,
    TAG_KEEP_REMOTE,
    TAG_MERGE
};
typedef enum TagConflict TagConflict;

struct TagConfig {
    TagStore store;
    TagFormat local_format;
    TagFormat server_format;
    char *xattr_name;
    TagConflict conflict;
    bool detect_changes;
};

enum VersioningType {
    VERSIONING_SIMPLE = 0,
    VERSIONING_DELTAV
};
typedef enum VersioningType VersioningType;

struct Versioning {
    VersioningType type;
    char *collection;
    bool always;
};

int load_sync_config();

UcxMapIterator scfg_directory_iterator();
SyncDirectory* scfg_get_dir(char *name);

int scfg_check_dir(SyncDirectory *dir);

char* scfg_create_path(char *cfg);

int add_directory(SyncDirectory *dir);

char* generate_db_name(char *basename);

void free_sync_config();


#ifdef	__cplusplus
}
#endif

#endif	/* SCFG_H */