/**
 * backend_download_packages:
 */
static void
backend_download_packages (PkBackend *backend, gchar **package_ids, const gchar *directory)
{
	guint i;
	guint len;
	const gchar *package_id;
	const gchar *files;
	const char *error;
	slapt_pkg_list_t *installed;
	slapt_pkg_list_t *available;
	slapt_pkg_info_t *pkg;
	const char *summary;
	const char *note = NULL;
	char *filename;

	pk_backend_set_status (backend, PK_STATUS_ENUM_LOADING_CACHE);

	installed = slapt_get_installed_pkgs();
	available = slapt_get_available_pkgs();

	pk_backend_set_status (backend, PK_STATUS_ENUM_DOWNLOAD);
	pk_backend_set_percentage (backend, 0);

	len = g_strv_length (package_ids);
	for (i=0; i<len; i++) {
	    package_id = package_ids[i];
	    pkg = _get_pkg_from_string(package_id, available, installed);
	    if (pkg == NULL) {
		pk_backend_error_code (backend, PK_ERROR_ENUM_PACKAGE_NOT_FOUND, "package not found");
		continue;
	    }

	    summary = _get_pkg_summary(pkg);
	    pk_backend_package (backend, PK_INFO_ENUM_DOWNLOADING, package_id, summary);
	    g_free((gpointer) summary);

	    error = slapt_download_pkg(_config, pkg, note);
	    if (error == NULL) {

		filename = slapt_gen_pkg_file_name(_config, pkg);
		files = g_strdup(filename);

		pk_backend_files (backend, package_id, files);

		g_free((gpointer) files);
		free(filename);
	    } else {
		pk_backend_error_code (backend, PK_ERROR_ENUM_PACKAGE_DOWNLOAD_FAILED, error);
	    }
	}

	slapt_free_pkg_list(available);
	slapt_free_pkg_list(installed);

	pk_backend_set_percentage (backend, 100);
	pk_backend_finished (backend);
}
static void
pk_backend_transaction_download_end (PkBackend *self)
{
	g_return_if_fail (self != NULL);
	g_return_if_fail (dpkg != NULL);

	pk_backend_pkg (self, dpkg, PK_INFO_ENUM_FINISHED);

	/* tell DownloadPackages what files were downloaded */
	if (dfiles != NULL) {
		gchar *package_id;

		package_id = alpm_pkg_build_id (dpkg);

		pk_backend_files (self, package_id, dfiles->str);

		g_free (package_id);
		g_string_free (dfiles, TRUE);
	}

	dpkg = NULL;
	dfiles = NULL;
}
static gboolean
backend_get_files_thread (PkBackend *backend)
{
	gchar *files;
	sqlite3 *db;
	gchar **package_ids;
	gchar **package_id_data;

	db = db_open();
	package_ids = pk_backend_get_strv (backend, "package_ids");
	/* FIXME: support multiple packages */
	package_id_data = pk_package_id_split (package_ids[0]);

	pk_backend_set_status (backend, PK_STATUS_ENUM_QUERY);

	files = box_db_repos_get_files_string (db, package_id_data[PK_PACKAGE_ID_NAME], package_id_data[PK_PACKAGE_ID_VERSION]);
	pk_backend_files (backend, package_ids[0], files);

	db_close (db);
	g_free (files);

	pk_backend_finished (backend);
	return TRUE;
}
/**
 * backend_download_packages_thread:
 */
static gboolean
backend_download_packages_thread (PkBackend *backend)
{
	gchar **package_ids;
	string directory;

	package_ids = pk_backend_get_strv(backend, "package_ids");
	directory = _config->FindDir("Dir::Cache::archives") + "partial/";
	pk_backend_set_allow_cancel (backend, true);

	aptcc *m_apt = new aptcc(backend, _cancel);
	pk_backend_set_pointer(backend, "aptcc_obj", m_apt);
	if (m_apt->init()) {
		egg_debug ("Failed to create apt cache");
		delete m_apt;
		pk_backend_finished (backend);
		return false;
	}

	pk_backend_set_status (backend, PK_STATUS_ENUM_QUERY);
	// Create the progress
	AcqPackageKitStatus Stat(m_apt, backend, _cancel);

	// get a fetcher
	pkgAcquire fetcher(&Stat);
	string filelist;
	gchar *pi;

	// TODO this might be useful when the item is in the cache
// 	for (pkgAcquire::ItemIterator I = fetcher.ItemsBegin(); I < fetcher.ItemsEnd();)
// 	{
// 		if ((*I)->Local == true)
// 		{
// 			I++;
// 			continue;
// 		}
//
// 		// Close the item and check if it was found in cache
// 		(*I)->Finished();
// 		if ((*I)->Complete == false) {
// 			Transient = true;
// 		}
//
// 		// Clear it out of the fetch list
// 		delete *I;
// 		I = fetcher.ItemsBegin();
// 	}

	for (uint i = 0; i < g_strv_length(package_ids); i++) {
		pi = package_ids[i];
		if (pk_package_id_check(pi) == false) {
			pk_backend_error_code (backend,
					       PK_ERROR_ENUM_PACKAGE_ID_INVALID,
					       pi);
			delete m_apt;
			pk_backend_finished (backend);
			return false;
		}

		if (_cancel) {
			break;
		}

		pair<pkgCache::PkgIterator, pkgCache::VerIterator> pkg_ver;
		pkg_ver = m_apt->find_package_id(pi);
		// Ignore packages that could not be found or that exist only due to dependencies.
		if (pkg_ver.second.end() == true)
		{
			_error->Error("Can't find this package id \"%s\".", pi);
			continue;
		} else {
			if(!pkg_ver.second.Downloadable()) {
				_error->Error("No downloadable files for %s,"
					      "perhaps it is a local or obsolete" "package?",
					      pi);
				continue;
			}

			string storeFileName;
			if (get_archive(&fetcher,
					m_apt->packageSourceList,
					m_apt->packageRecords,
					pkg_ver.second,
					directory,
					storeFileName))
			{
				Stat.addPackagePair(pkg_ver);
			}
			string destFile = directory + "/" + flNotDir(storeFileName);
			if (filelist.empty()) {
				filelist = destFile;
			} else {
				filelist.append(";" + destFile);
			}
		}
	}

	if (fetcher.Run() != pkgAcquire::Continue
	    && _cancel == false)
	// We failed and we did not cancel
	{
		show_errors(backend, PK_ERROR_ENUM_PACKAGE_DOWNLOAD_FAILED);
		delete m_apt;
		pk_backend_finished (backend);
		return _cancel;
	}

	// send the filelist
	pk_backend_files(backend, NULL, filelist.c_str());

	delete m_apt;
	pk_backend_finished (backend);
	return true;
}
/**
 * pk_backend_spawn_parse_stdout:
 **/
static gboolean
pk_backend_spawn_parse_stdout (PkBackendSpawn *backend_spawn, const gchar *line, GError **error)
{
	gchar **sections;
	guint size;
	gchar *command;
	gchar *text;
	gboolean ret = TRUE;
	guint64 speed;
	PkInfoEnum info;
	PkRestartEnum restart;
	PkGroupEnum group;
	gulong package_size;
	gint percentage;
	PkErrorEnum error_enum;
	PkStatusEnum status_enum;
	PkMessageEnum message_enum;
	PkRestartEnum restart_enum;
	PkSigTypeEnum sig_type;
	PkUpdateStateEnum update_state_enum;
	PkMediaTypeEnum media_type_enum;
	PkDistroUpgradeEnum distro_upgrade_enum;
	PkBackendSpawnPrivate *priv = backend_spawn->priv;

	g_return_val_if_fail (PK_IS_BACKEND_SPAWN (backend_spawn), FALSE);

	/* check if output line */
	if (line == NULL)
		return FALSE;

	/* split by tab */
	sections = g_strsplit (line, "\t", 0);
	command = sections[0];

	/* get size */
	size = g_strv_length (sections);

	if (g_strcmp0 (command, "package") == 0) {
		if (size != 4) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		if (pk_package_id_check (sections[2]) == FALSE) {
			g_set_error_literal (error, 1, 0, "invalid package_id");
			ret = FALSE;
			goto out;
		}
		info = pk_info_enum_from_string (sections[1]);
		if (info == PK_INFO_ENUM_UNKNOWN) {
			g_set_error (error, 1, 0, "Info enum not recognised, and hence ignored: '%s'", sections[1]);
			ret = FALSE;
			goto out;
		}
		pk_backend_package (priv->backend, info, sections[2], sections[3]);
	} else if (g_strcmp0 (command, "details") == 0) {
		if (size != 7) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		group = pk_group_enum_from_string (sections[3]);

		/* ITS4: ignore, checked for overflow */
		package_size = atol (sections[6]);
		if (package_size > 1073741824) {
			g_set_error_literal (error, 1, 0, "package size cannot be larger than one Gb");
			ret = FALSE;
			goto out;
		}
		text = g_strdup (sections[4]);
		/* convert ; to \n as we can't emit them on stdout */
		g_strdelimit (text, ";", '\n');
		pk_backend_details (priv->backend, sections[1], sections[2],
					group, text, sections[5], package_size);
		g_free (text);
	} else if (g_strcmp0 (command, "finished") == 0) {
		if (size != 1) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		pk_backend_finished (priv->backend);

		/* from this point on, we can start the kill timer */
		pk_backend_spawn_start_kill_timer (backend_spawn);

	} else if (g_strcmp0 (command, "files") == 0) {
		if (size != 3) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		pk_backend_files (priv->backend, sections[1], sections[2]);
	} else if (g_strcmp0 (command, "repo-detail") == 0) {
		if (size != 4) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		if (g_strcmp0 (sections[3], "true") == 0) {
			pk_backend_repo_detail (priv->backend, sections[1], sections[2], TRUE);
		} else if (g_strcmp0 (sections[3], "false") == 0) {
			pk_backend_repo_detail (priv->backend, sections[1], sections[2], FALSE);
		} else {
			g_set_error (error, 1, 0, "invalid qualifier '%s'", sections[3]);
			ret = FALSE;
			goto out;
		}
	} else if (g_strcmp0 (command, "updatedetail") == 0) {
		if (size != 13) {
			g_set_error (error, 1, 0, "invalid command '%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		restart = pk_restart_enum_from_string (sections[7]);
		if (restart == PK_RESTART_ENUM_UNKNOWN) {
			g_set_error (error, 1, 0, "Restart enum not recognised, and hence ignored: '%s'", sections[7]);
			ret = FALSE;
			goto out;
		}
		update_state_enum = pk_update_state_enum_from_string (sections[10]);
		/* convert ; to \n as we can't emit them on stdout */
		g_strdelimit (sections[8], ";", '\n');
		g_strdelimit (sections[9], ";", '\n');
		pk_backend_update_detail (priv->backend, sections[1],
					  sections[2], sections[3], sections[4],
					  sections[5], sections[6], restart, sections[8],
					  sections[9], update_state_enum,
					  sections[11], sections[12]);
	} else if (g_strcmp0 (command, "percentage") == 0) {
		if (size != 2) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		ret = pk_strtoint (sections[1], &percentage);
		if (!ret) {
			g_set_error (error, 1, 0, "invalid percentage value %s", sections[1]);
			ret = FALSE;
		} else if (percentage < 0 || percentage > 100) {
			g_set_error (error, 1, 0, "invalid percentage value %i", percentage);
			ret = FALSE;
		} else {
			pk_backend_set_percentage (priv->backend, percentage);
		}
	} else if (g_strcmp0 (command, "subpercentage") == 0) {
		if (size != 2) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		ret = pk_strtoint (sections[1], &percentage);
		if (!ret) {
			g_set_error (error, 1, 0, "invalid subpercentage value %s", sections[1]);
			ret = FALSE;
		} else if (percentage < 0 || percentage > 100) {
			g_set_error (error, 1, 0, "invalid subpercentage value %i", percentage);
			ret = FALSE;
		} else {
			pk_backend_set_sub_percentage (priv->backend, percentage);
		}
	} else if (g_strcmp0 (command, "item-percentage") == 0) {
		if (size != 3) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		if (!pk_package_id_check (sections[1])) {
			g_set_error (error, 1, 0, "invalid package_id");
			ret = FALSE;
			goto out;
		}
		ret = pk_strtoint (sections[2], &percentage);
		if (!ret) {
			g_set_error (error, 1, 0, "invalid item-percentage value %s", sections[1]);
			ret = FALSE;
		} else if (percentage < 0 || percentage > 100) {
			g_set_error (error, 1, 0, "invalid item-percentage value %i", percentage);
			ret = FALSE;
		} else {
			pk_backend_set_item_progress (priv->backend,
							sections[1],
							percentage);
		}
	} else if (g_strcmp0 (command, "error") == 0) {
		if (size != 3) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		error_enum = pk_error_enum_from_string (sections[1]);
		if (error_enum == PK_ERROR_ENUM_UNKNOWN) {
			g_set_error (error, 1, 0, "Error enum not recognised, and hence ignored: '%s'", sections[1]);
			ret = FALSE;
			goto out;
		}
		/* convert back all the ;'s to newlines */
		text = g_strdup (sections[2]);

		/* convert ; to \n as we can't emit them on stdout */
		g_strdelimit (text, ";", '\n');

		/* convert % else we try to format them */
		g_strdelimit (text, "%", '$');

		pk_backend_error_code (priv->backend, error_enum, text);
		g_free (text);
	} else if (g_strcmp0 (command, "requirerestart") == 0) {
		if (size != 3) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		restart_enum = pk_restart_enum_from_string (sections[1]);
		if (restart_enum == PK_RESTART_ENUM_UNKNOWN) {
			g_set_error (error, 1, 0, "Restart enum not recognised, and hence ignored: '%s'", sections[1]);
			ret = FALSE;
			goto out;
		}
		if (!pk_package_id_check (sections[2])) {
			g_set_error (error, 1, 0, "invalid package_id");
			ret = FALSE;
			goto out;
		}
		pk_backend_require_restart (priv->backend, restart_enum, sections[2]);
	} else if (g_strcmp0 (command, "message") == 0) {
		if (size != 3) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		message_enum = pk_message_enum_from_string (sections[1]);
		if (message_enum == PK_MESSAGE_ENUM_UNKNOWN) {
			g_set_error (error, 1, 0, "Message enum not recognised, and hence ignored: '%s'", sections[1]);
			ret = FALSE;
			goto out;
		}
		text = g_strdup (sections[2]);
		/* convert ; to \n as we can't emit them on stdout */
		g_strdelimit (text, ";", '\n');
		pk_backend_message (priv->backend, message_enum, text);
		g_free (text);
	} else if (g_strcmp0 (command, "change-transaction-data") == 0) {
		if (size != 2) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		pk_backend_set_transaction_data (priv->backend, sections[1]);
	} else if (g_strcmp0 (command, "status") == 0) {
		if (size != 2) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		status_enum = pk_status_enum_from_string (sections[1]);
		if (status_enum == PK_STATUS_ENUM_UNKNOWN) {
			g_set_error (error, 1, 0, "Status enum not recognised, and hence ignored: '%s'", sections[1]);
			ret = FALSE;
			goto out;
		}
		pk_backend_set_status (priv->backend, status_enum);
	} else if (g_strcmp0 (command, "speed") == 0) {
		if (size != 2) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		ret = pk_strtouint64 (sections[1], &speed);
		if (!ret) {
			g_set_error (error, 1, 0,
				     "failed to parse speed: '%s'",
				     sections[1]);
			ret = FALSE;
			goto out;
		}
		pk_backend_set_speed (priv->backend, speed);
	} else if (g_strcmp0 (command, "allow-cancel") == 0) {
		if (size != 2) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		if (g_strcmp0 (sections[1], "true") == 0) {
			pk_backend_set_allow_cancel (priv->backend, TRUE);
		} else if (g_strcmp0 (sections[1], "false") == 0) {
			pk_backend_set_allow_cancel (priv->backend, FALSE);
		} else {
			g_set_error (error, 1, 0, "invalid section '%s'", sections[1]);
			ret = FALSE;
			goto out;
		}
	} else if (g_strcmp0 (command, "no-percentage-updates") == 0) {
		if (size != 1) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		pk_backend_set_percentage (priv->backend, PK_BACKEND_PERCENTAGE_INVALID);
	} else if (g_strcmp0 (command, "repo-signature-required") == 0) {

		if (size != 9) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}

		sig_type = pk_sig_type_enum_from_string (sections[8]);
		if (sig_type == PK_SIGTYPE_ENUM_UNKNOWN) {
			g_set_error (error, 1, 0, "Sig enum not recognised, and hence ignored: '%s'", sections[8]);
			ret = FALSE;
			goto out;
		}
		if (pk_strzero (sections[1])) {
			g_set_error (error, 1, 0, "package_id blank, and hence ignored: '%s'", sections[1]);
			ret = FALSE;
			goto out;
		}
		if (pk_strzero (sections[2])) {
			g_set_error (error, 1, 0, "repository name blank, and hence ignored: '%s'", sections[2]);
			ret = FALSE;
			goto out;
		}

		/* pass _all_ of the data */
		ret = pk_backend_repo_signature_required (priv->backend, sections[1],
							  sections[2], sections[3], sections[4],
							  sections[5], sections[6], sections[7], sig_type);
		goto out;

	} else if (g_strcmp0 (command, "eula-required") == 0) {

		if (size != 5) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}

		if (pk_strzero (sections[1])) {
			g_set_error (error, 1, 0, "eula_id blank, and hence ignored: '%s'", sections[1]);
			ret = FALSE;
			goto out;
		}

		if (pk_strzero (sections[2])) {
			g_set_error (error, 1, 0, "package_id blank, and hence ignored: '%s'", sections[2]);
			ret = FALSE;
			goto out;
		}

		if (pk_strzero (sections[4])) {
			g_set_error (error, 1, 0, "agreement name blank, and hence ignored: '%s'", sections[4]);
			ret = FALSE;
			goto out;
		}

		ret = pk_backend_eula_required (priv->backend, sections[1], sections[2], sections[3], sections[4]);
		goto out;

	} else if (g_strcmp0 (command, "media-change-required") == 0) {

		if (size != 4) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}

		media_type_enum = pk_media_type_enum_from_string (sections[1]);
		if (media_type_enum == PK_MEDIA_TYPE_ENUM_UNKNOWN) {
			g_set_error (error, 1, 0, "media type enum not recognised, and hence ignored: '%s'", sections[1]);
			ret = FALSE;
			goto out;
		}

		ret = pk_backend_media_change_required (priv->backend, media_type_enum, sections[2], sections[3]);
		goto out;
	} else if (g_strcmp0 (command, "distro-upgrade") == 0) {

		if (size != 4) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}

		distro_upgrade_enum = pk_distro_upgrade_enum_from_string (sections[1]);
		if (distro_upgrade_enum == PK_DISTRO_UPGRADE_ENUM_UNKNOWN) {
			g_set_error (error, 1, 0, "distro upgrade enum not recognised, and hence ignored: '%s'", sections[1]);
			ret = FALSE;
			goto out;
		}

		ret = pk_backend_distro_upgrade (priv->backend, distro_upgrade_enum, sections[2], sections[3]);
		goto out;
	} else if (g_strcmp0 (command, "category") == 0) {

		if (size != 6) {
			g_set_error (error, 1, 0, "invalid command'%s', size %i", command, size);
			ret = FALSE;
			goto out;
		}
		if (g_strcmp0 (sections[1], sections[2]) == 0) {
			g_set_error_literal (error, 1, 0, "cat_id cannot be the same as parent_id");
			ret = FALSE;
			goto out;
		}
		if (pk_strzero (sections[2])) {
			g_set_error_literal (error, 1, 0, "cat_id cannot not blank");
			ret = FALSE;
			goto out;
		}
		if (pk_strzero (sections[3])) {
			g_set_error_literal (error, 1, 0, "name cannot not blank");
			ret = FALSE;
			goto out;
		}
		if (pk_strzero (sections[5])) {
			g_set_error_literal (error, 1, 0, "icon cannot not blank");
			ret = FALSE;
			goto out;
		}
		if (g_str_has_prefix (sections[5], "/")) {
			g_set_error (error, 1, 0, "icon '%s' should be a named icon, not a path", sections[5]);
			ret = FALSE;
			goto out;
		}
		ret = pk_backend_category (priv->backend, sections[1], sections[2], sections[3], sections[4], sections[5]);
		goto out;
	} else {
		ret = FALSE;
		g_set_error (error, 1, 0, "invalid command '%s'", command);
	}
out:
	g_strfreev (sections);
	return ret;
}