1 files changed, 83 insertions, 0 deletions
diff --git a/lib/private/Async/Model/SessionInterface.php b/lib/private/Async/Model/SessionInterface.php
new file mode 100644
index 00000000000..c481fc545f6
--- /dev/null
+++ b/lib/private/Async/Model/SessionInterface.php
@@ -0,0 +1,83 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace OC\Async\Model;
+
+use OC\Async\ISessionInterface;
+use OCP\Async\Enum\BlockStatus;
+
+class SessionInterface implements ISessionInterface {
+	public function __construct(
+		/** @var BlockInterface[] */
+		private array $interfaces,
+	) {
+	}
+
+	public function getAll(): array {
+		return $this->interfaces;
+	}
+
+	public function byToken(string $token): ?BlockInterface {
+		foreach ($this->interfaces as $iface) {
+			if ($iface->getToken() === $token) {
+				return $iface;
+			}
+		}
+
+		return null;
+	}
+
+	public function byId(string $id): ?BlockInterface {
+		foreach($this->interfaces as $iface) {
+			if ($iface->getId() === $id) {
+				return $iface;
+			}
+		}
+
+		return null;
+	}
+
+	/**
+	 * return a global status of the session based on the status of each process
+	 * - if one entry is still at ::PREP stage, we return ::PREP
+	 * - if one ::BLOCKER, returns ::BLOCKER.
+	 * - if all ::SUCCESS, returns ::SUCCESS, else ignored.
+	 * - if all ::ERROR+::SUCCESS, returns ::ERROR, else ignored.
+	 * - session status is the biggest value between all left process status (::STANDBY, ::RUNNING)
+	 */
+	public function getGlobalStatus(): BlockStatus {
+		$current = -1;
+		$groupedStatus = [];
+		foreach($this->interfaces as $iface) {
+			// returns ::PREP if one process is still ::PREP
+			if ($iface->getStatus() === BlockStatus::PREP) {
+				return BlockStatus::PREP;
+			}
+			// returns ::BLOCKER if one process is marked ::BLOCKER
+			if ($iface->getStatus() === BlockStatus::BLOCKER) {
+				return BlockStatus::BLOCKER;
+			}
+			// we keep trace if process is marked as ::ERROR or ::SUCCESS
+			// if not, we keep the highest value
+			if (in_array($iface->getStatus(), [BlockStatus::ERROR, BlockStatus::SUCCESS], true)) {
+				$groupedStatus[$iface->getStatus()->value] = true;
+			} else {
+				$current = max($current, $iface->getStatus()->value);
+			}
+		}
+
+		// in case the all interface were ::ERROR or ::SUCCESS, we check
+		// if there was at least one ::ERROR. if none we return ::SUCCESS
+		if ($current === -1) {
+			return (array_key_exists(BlockStatus::ERROR->value, $groupedStatus)) ? BlockStatus::ERROR : BlockStatus::SUCCESS;
+		}
+
+		return BlockStatus::from($current);
+	}
+}