1 files changed, 88 insertions, 0 deletions
diff --git a/apps/theming/lib/Migration/Version2006Date20240905111627.php b/apps/theming/lib/Migration/Version2006Date20240905111627.php
new file mode 100644
index 00000000000..dcec954f585
--- /dev/null
+++ b/apps/theming/lib/Migration/Version2006Date20240905111627.php
@@ -0,0 +1,88 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OCA\Theming\Migration;
+
+use Closure;
+use OCA\Theming\AppInfo\Application;
+use OCA\Theming\Jobs\RestoreBackgroundImageColor;
+use OCP\BackgroundJob\IJobList;
+use OCP\IAppConfig;
+use OCP\IDBConnection;
+use OCP\Migration\IOutput;
+
+// This can only be executed once because `background_color` is again used with Nextcloud 30,
+// so this part only works when updating -> Nextcloud 29 -> 30
+class Version2006Date20240905111627 implements \OCP\Migration\IMigrationStep {
+
+	public function __construct(
+		private IJobList $jobList,
+		private IAppConfig $appConfig,
+		private IDBConnection $connection,
+	) {
+	}
+
+	public function name(): string {
+		return 'Restore custom primary color';
+	}
+
+	public function description(): string {
+		return 'Restore custom primary color after separating primary color from background color';
+	}
+
+	public function preSchemaChange(IOutput $output, Closure $schemaClosure, array $options): void {
+		// nop
+	}
+
+	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options) {
+		$this->restoreSystemColors($output);
+
+		$userThemingEnabled = $this->appConfig->getValueBool('theming', 'disable-user-theming') === false;
+		if ($userThemingEnabled) {
+			$this->restoreUserColors($output);
+		}
+
+		return null;
+	}
+
+	public function postSchemaChange(IOutput $output, Closure $schemaClosure, array $options): void {
+		$output->info('Initialize restoring of background colors for custom background images');
+		// This is done in a background job as this can take a lot of time for large instances
+		$this->jobList->add(RestoreBackgroundImageColor::class, ['stage' => RestoreBackgroundImageColor::STAGE_PREPARE]);
+	}
+
+	private function restoreSystemColors(IOutput $output): void {
+		$defaultColor = $this->appConfig->getValueString(Application::APP_ID, 'color', '');
+		if ($defaultColor === '') {
+			$output->info('No custom system color configured - skipping');
+		} else {
+			// Restore legacy value into new field
+			$this->appConfig->setValueString(Application::APP_ID, 'background_color', $defaultColor);
+			$this->appConfig->setValueString(Application::APP_ID, 'primary_color', $defaultColor);
+			// Delete legacy field
+			$this->appConfig->deleteKey(Application::APP_ID, 'color');
+			// give some feedback
+			$output->info('Global primary color restored');
+		}
+	}
+
+	private function restoreUserColors(IOutput $output): void {
+		$output->info('Restoring user primary color');
+		// For performance let the DB handle this
+		$qb = $this->connection->getQueryBuilder();
+		// Rename the `background_color` config to `primary_color` as this was the behavior on Nextcloud 29 and older
+		// with Nextcloud 30 `background_color` is a new option to define the background color independent of the primary color.
+		$qb->update('preferences')
+			->set('configkey', $qb->createNamedParameter('primary_color'))
+			->where($qb->expr()->eq('appid', $qb->createNamedParameter(Application::APP_ID)))
+			->andWhere($qb->expr()->eq('configkey', $qb->createNamedParameter('background_color')));
+		$qb->executeStatement();
+		$output->info('Primary color of users restored');
+	}
+}