refactor progress

packages/queue/src/contracts/IQueueEngine.tsx

@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2026 Fluxer Contributors
+ *
+ * This file is part of Fluxer.
+ *
+ * Fluxer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Fluxer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Fluxer. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import type {EnqueueResult, Job, JobRecord, LeasedJob, QueueStats} from '@fluxer/queue/src/domain/QueueDomainTypes';
+import type {JsonValue} from '@fluxer/queue/src/types/JsonTypes';
+
+export interface IQueueEngine {
+	start(): Promise<void>;
+	stop(): Promise<void>;
+	enqueue(
+		taskType: string,
+		payload: JsonValue,
+		priority?: number,
+		runAtMs?: number | null,
+		maxAttempts?: number,
+		deduplicationId?: string | null,
+	): Promise<EnqueueResult>;
+	dequeue(
+		taskTypes: Array<string> | null,
+		limit: number,
+		waitTimeMs: number,
+		visibilityTimeoutMs: number | null,
+	): Promise<Array<LeasedJob>>;
+	ack(receipt: string): Promise<boolean>;
+	nack(receipt: string, error?: string): Promise<boolean>;
+	changeVisibility(receipt: string, timeoutMs: number): Promise<boolean>;
+	retryJob(jobId: string): Promise<Job | null>;
+	deleteJob(jobId: string): Promise<boolean>;
+	getStats(): QueueStats;
+	getJob(jobId: string): JobRecord | null;
+	resetState(): Promise<void>;
+}