#ifndef ISTOREUTILS_H_
#define ISTOREUTILS_H_

#include <stdbool.h>
#include <stdio.h>
#include <sys/types.h>

#include "transaction.h"

typedef enum {
	INDEX,
	STORE
}
index_store_t;

typedef enum {
        GL_BACKUP_OK = 0,
        GL_BACKUP_ERR_ALLOC = 1,
        GL_BACKUP_ERR_OPEN = 2,
        GL_BACKUP_ERR_ADD_INDEX = 3,
        GL_BACKUP_ERR_ADD_STORE = 4,
        GL_BACKUP_ERR_ADD_LINKS = 5,
        GL_BACKUP_ERR_CLOSE = 6
}
gl_backup_status_t;

typedef enum {
	GL_RESTORE_OK = 0,
	GL_RESTORE_ERR_OPEN = 1,
	GL_RESTORE_ERR_EXTRACT = 2
} gl_restore_status_t;

/*
 * GL_INSTALL_OK: installation successful
 * GL_INSTALL_ERR_OPEN: unable to open .gpkg file
 * GL_INSTALL_ERR_MANIFEST: manifest is missing or unparseable
 * GL_INSTALL_ERR_EXTRACT: unable to extract files
 * GL_INSTALL_ERR_INDEX: unable to update index
 * GL_INSTALL_ERR_ALREADY_INSTALLED: package already installed
 */

typedef enum {
        GL_INSTALL_OK = 0,
        GL_INSTALL_ERR_OPEN = 1,
        GL_INSTALL_ERR_MANIFEST = 2,
        GL_INSTALL_ERR_EXTRACT = 3,
        GL_INSTALL_ERR_INDEX = 4,
        GL_INSTALL_ERR_ALREADY_INSTALLED = 5,
        GL_INSTALL_SKIPPED = 6,
}
gl_install_status_t;

typedef enum {
	GL_REMOVE_OK = 0,
	GL_REMOVE_ERR_NOT_FOUND = 1,
	GL_REMOVE_ERR_UNLINK = 2,
	GL_REMOVE_ERR_INDEX = 3,
} gl_remove_status_t;

struct gpkg_entry {
	char *repo;
	char *pkg;
        char *ver;
};

struct gindex {
	int uid;
	int listed;
	struct gpkg_entry *entries;
	size_t count;
};

bool gl_usr_istore_exists(index_store_t index_or_store, int uid);
bool gl_sys_istore_exists(index_store_t index_or_store);

int gl_init_user(uid_t uid, bool isVerbose);
int gl_init_sys(bool isVerbose);
int gl_delete_user(uid_t uid, bool isVerbose);

int gl_parse_index(struct gindex *idx, FILE *f);
void gl_free_index(struct gindex *idx);

int gl_rebuild_index(gl_context_t *ctx);

char *gl_find_pkg_repo(gl_context_t *ctx, const char *pkg_name);

typedef struct {
        char **repos;
        size_t count;
}
gl_repo_list_t;

gl_repo_list_t gl_find_pkg_repos(gl_context_t *ctx, const char *pkg_name);
void gl_free_repo_list(gl_repo_list_t *list);

gl_backup_status_t gl_backup_istore(const char *tar_path, const char *glacier_root,
                      const char *uid);
gl_restore_status_t gl_restore_istore(const char *tar_path, const char *glacier_root, const char *uid);

gl_install_status_t gl_install_pkg(gl_context_t *ctx, const char *gpkg_path);
gl_remove_status_t gl_remove_pkg(gl_context_t *ctx, const char *pkg_name, const char *pkg_repo);

int gl_relink_store(gl_context_t *ctx);



#endif