#ifndef _RAZOR_H_
#define _RAZOR_H_

#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))

struct razor_set;

struct razor_set *razor_set_open(const char *filename);
void razor_set_destroy(struct razor_set *set);
int razor_set_write(struct razor_set *set, const char *filename);

void razor_set_list(struct razor_set *set);
void razor_set_list_requires(struct razor_set *set, const char *name);
void razor_set_list_provides(struct razor_set *set, const char *name);
void razor_set_list_requires_packages(struct razor_set *set,
				      const char *name,
				      const char *version);
void razor_set_list_provides_packages(struct razor_set *set,
				      const char *name,
				      const char *version);
void razor_set_list_files(struct razor_set *set, const char *prefix);

void razor_set_list_unsatisfied(struct razor_set *set);
struct razor_set *razor_set_update(struct razor_set *set,
				   struct razor_set *upstream,
				   int count, const char **packages);

typedef void (*razor_package_callback_t)(const char *name,
					 const char *old_version,
					 const char *new_version,
					 void *data);
void
razor_set_diff(struct razor_set *set, struct razor_set *upstream,
	       razor_package_callback_t callback, void *data);


/* Importer interface; for building a razor set from external sources,
 * like yum, rpmdb or razor package files. */

struct razor_importer;

struct razor_importer *razor_importer_new(void);
void razor_importer_begin_package(struct razor_importer *importer,
				const char *name, const char *version);
void razor_importer_add_requires(struct razor_importer *importer,
				 const char *name, const char *version);
void razor_importer_add_provides(struct razor_importer *importer,
				 const char *name, const char *version);
void razor_importer_add_file(struct razor_importer *importer,
			     const char *name);
void razor_importer_finish_package(struct razor_importer *importer);
struct razor_set *razor_importer_finish(struct razor_importer *importer);

struct razor_set *razor_import_rzr_files(int count, const char **files);
struct razor_set *razor_set_create_from_yum_filelist(int fd);
struct razor_set *razor_set_create_from_rpmdb(void);

#endif /* _RAZOR_H_ */