Implement getExportEstimatedSize in migrators

Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>

4 files changed, 68 insertions, 0 deletions

diff --git a/apps/dav/lib/UserMigration/CalendarMigrator.php b/apps/dav/lib/UserMigration/CalendarMigrator.php
index 015ce6faa86..e6383bcc1dd 100644
--- a/apps/dav/lib/UserMigration/CalendarMigrator.php
+++ b/apps/dav/lib/UserMigration/CalendarMigrator.php
@@ -209,6 +209,21 @@ class CalendarMigrator implements IMigrator {
 	/**
 	 * {@inheritDoc}
 	 */
+	public function getExportEstimatedSize(IUser $user): int {
+		$principalUri = $this->getPrincipalUri($user);
+
+		return array_sum(array_map(
+			function (ICalendar $calendar) use ($user): int {
+				// FIXME 1MiB by calendar, no idea if this is accurate and if we should go into more details
+				return 1000;
+			},
+			$this->calendarManager->getCalendarsForPrincipal($principalUri),
+		));
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
 	public function export(IUser $user, IExportDestination $exportDestination, OutputInterface $output): void {
 		$output->writeln('Exporting calendars into ' . CalendarMigrator::EXPORT_ROOT . '…');
 
diff --git a/apps/dav/lib/UserMigration/ContactsMigrator.php b/apps/dav/lib/UserMigration/ContactsMigrator.php
index aed41e5c82f..068500a1ba7 100644
--- a/apps/dav/lib/UserMigration/ContactsMigrator.php
+++ b/apps/dav/lib/UserMigration/ContactsMigrator.php
@@ -196,6 +196,21 @@ class ContactsMigrator implements IMigrator {
 	/**
 	 * {@inheritDoc}
 	 */
+	public function getExportEstimatedSize(IUser $user): int {
+		$principalUri = $this->getPrincipalUri($user);
+
+		return array_sum(array_map(
+			function (array $addressBookInfo) use ($user): int {
+				// FIXME 1MiB by addressbook, no idea if this is accurate and if we should go into more details
+				return 1000;
+			},
+			$this->cardDavBackend->getAddressBooksForUser($principalUri),
+		));
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
 	public function export(IUser $user, IExportDestination $exportDestination, OutputInterface $output): void {
 		$output->writeln('Exporting contacts into ' . ContactsMigrator::PATH_ROOT . '…');
 
diff --git a/apps/files_trashbin/lib/UserMigration/TrashbinMigrator.php b/apps/files_trashbin/lib/UserMigration/TrashbinMigrator.php
index dbc6267eb3a..721ca59f929 100644
--- a/apps/files_trashbin/lib/UserMigration/TrashbinMigrator.php
+++ b/apps/files_trashbin/lib/UserMigration/TrashbinMigrator.php
@@ -66,6 +66,23 @@ class TrashbinMigrator implements IMigrator {
 	/**
 	 * {@inheritDoc}
 	 */
+	public function getExportEstimatedSize(IUser $user): int {
+		$uid = $user->getUID();
+
+		try {
+			$trashbinFolder = $this->root->get('/'.$uid.'/files_trashbin');
+			if (!$trashbinFolder instanceof Folder) {
+				return 0;
+			}
+			return (int)ceil($trashbinFolder->getSize() / 1024);
+		} catch (\Throwable $e) {
+			return 0;
+		}
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
 	public function export(IUser $user, IExportDestination $exportDestination, OutputInterface $output): void {
 		$output->writeln('Exporting trashbin into ' . Application::APP_ID . '…');
 
diff --git a/apps/settings/lib/UserMigration/AccountMigrator.php b/apps/settings/lib/UserMigration/AccountMigrator.php
index 7b60a101cee..733d4a0b75d 100644
--- a/apps/settings/lib/UserMigration/AccountMigrator.php
+++ b/apps/settings/lib/UserMigration/AccountMigrator.php
@@ -71,6 +71,27 @@ class AccountMigrator implements IMigrator {
 	/**
 	 * {@inheritDoc}
 	 */
+	public function getExportEstimatedSize(IUser $user): int {
+		$uid = $user->getUID();
+
+		$size = 100; // 100KiB for account JSON
+
+		try {
+			$avatar = $this->avatarManager->getAvatar($user->getUID());
+			if ($avatar->isCustomAvatar()) {
+				$avatarFile = $avatar->getFile(-1);
+				$size += $avatarFile->getSize() / 1024;
+			}
+		} catch (Throwable $e) {
+			return 0;
+		}
+
+		return (int)ceil($size);
+	}
+
+	/**
+	 * {@inheritDoc}
+	 */
 	public function export(IUser $user, IExportDestination $exportDestination, OutputInterface $output): void {
 		$output->writeln('Exporting account information in ' . AccountMigrator::PATH_ACCOUNT_FILE . '…');