#include <stdlib.h>

 #include <stddef.h>

 #include <stdio.h>

 #include <string.h>

 #include <unistd.h>

 #include "razor.h"

 static const char *repo_filename = "system.repo";

 static const char *rawhide_repo_filename = "rawhide.repo";

 static const char *updated_repo_filename = "system-updated.repo";

 static int

 command_list(int argc, const char *argv[])

 {

 	struct razor_set *set;

 	set = razor_set_open(repo_filename);

 	razor_set_list(set);

 	razor_set_destroy(set);

 	return 0;

 }

 static int

 command_list_requires(int argc, const char *argv[])

 {

 	struct razor_set *set;

 	set = razor_set_open(repo_filename);

 	razor_set_list_requires(set, argv[2]);

 	razor_set_destroy(set);

 	return 0;

 }

 static int

 command_list_provides(int argc, const char *argv[])

 {

 	struct razor_set *set;

 	set = razor_set_open(repo_filename);

 	razor_set_list_provides(set, argv[2]);

 	razor_set_destroy(set);

 	return 0;

 }

 static int

 command_what_requires(int argc, const char *argv[])

 {

 	struct razor_set *set;

 	set = razor_set_open(repo_filename);

 	razor_set_list_requires_packages(set, argv[2], argv[3]);

 	razor_set_destroy(set);

 	return 0;

 }

 static int

 command_what_provides(int argc, const char *argv[])

 {

 	struct razor_set *set;

 	set = razor_set_open(repo_filename);

 	razor_set_list_provides_packages(set, argv[2], argv[3]);

 	razor_set_destroy(set);

 	return 0;

 }

 static int

 command_import_yum(int argc, const char *argv[])

 {

 	struct razor_set *set;

 	set = razor_set_create_from_yum_filelist(STDIN_FILENO);

 	if (set == NULL)

 		return 1;

 	razor_set_write(set, rawhide_repo_filename);

 	razor_set_destroy(set);

 	printf("wrote %s\n", rawhide_repo_filename);

 	return 0;

 }

 static int

 command_import_rpmdb(int argc, const char *argv[])

 {

 	struct razor_set *set;

 	set = razor_set_create_from_rpmdb();

 	if (set == NULL)

 		return 1;

 	razor_set_write(set, repo_filename);

 	razor_set_destroy(set);

 	printf("wrote %s\n", repo_filename);

 	return 0;

 }

 static int

 command_validate(int argc, const char *argv[])

 {

 	struct razor_set *set;

 	set = razor_set_open(repo_filename);

 	if (set == NULL)

 		return 1;

 	razor_set_list_unsatisfied(set);

 	razor_set_destroy(set);

 	return 0;

 }

 static int

 command_update(int argc, const char *argv[])

 {

 	struct razor_set *set, *upstream;

 	set = razor_set_open(repo_filename);

 	upstream = razor_set_open(rawhide_repo_filename);

 	if (set == NULL || upstream == NULL)

 		return 1;

 	set = razor_set_update(set, upstream, argc, argv);

 	razor_set_write(set, updated_repo_filename);

 	razor_set_destroy(set);

 	razor_set_destroy(upstream);

 	printf("wrote system-updated.repo\n");

 	return 0;

 }

 static void

 print_diff(const char *name,

 	   const char *old_version, const char *new_version, void *data)

 {

 	if (old_version)

 		printf("removing %s %s\n", name, old_version);

 	else

 		printf("install %s %s\n", name, new_version);

 }

 static int

 command_diff(int argc, const char *argv[])

 {

 	struct razor_set *set, *updated;

 	set = razor_set_open(repo_filename);

 	updated = razor_set_open(updated_repo_filename);

 	if (set == NULL || updated == NULL)

 		return 1;

 	razor_set_diff(set, updated, print_diff, NULL);	

 	razor_set_destroy(set);

 	razor_set_destroy(updated);

 	return 0;

 }

 static struct {

 	const char *name;

 	const char *description;

 	int (*func)(int argc, const char *argv[]);

 } razor_commands[] = {

 	{ "list", "list all packages", command_list },

 	{ "list-requires", "list all requires or requires for the given package", command_list_requires },

 	{ "list-provides", "list all provides or provides for the give package", command_list_provides },

 	{ "what-requires", "list the packages that have the given requires", command_what_requires },

 	{ "what-provides", "list the packages that have the given provides", command_what_provides },

 	{ "import-yum", "import yum filelist.xml on stdin", command_import_yum },

 	{ "import-rpmdb", "import the system rpm database", command_import_rpmdb },

 	{ "validate", "validate a package set", command_validate },

 	{ "update", "update all or specified packages", command_update },

 	{ "diff", "show diff between two package sets", command_diff }

 };

 static int

 usage(void)

 {

 	int i;

 	printf("usage:\n");

 	for (i = 0; i < ARRAY_SIZE(razor_commands); i++)

 		printf("  %-20s%s\n",

 		       razor_commands[i].name, razor_commands[i].description);

 	return 1;

 }

 int

 main(int argc, const char *argv[])

 {

 	char *repo;

 	int i;

 	repo = getenv("RAZOR_REPO");

 	if (repo != NULL)

 		repo_filename = repo;

 	if (argc < 2)

 		return usage();

 	for (i = 0; i < ARRAY_SIZE(razor_commands); i++)

 		if (strcmp(razor_commands[i].name, argv[1]) == 0)

 			return razor_commands[i].func(argc - 2, argv + 2);

 	return usage();

 }