refactor progress

packages/rate_limit/src/internal/RateLimitKeyFactory.tsx

@@ -0,0 +1,47 @@
+/*
+ * 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 {assertNonEmptyString} from '@fluxer/rate_limit/src/internal/RateLimitValidation';
+
+const RATE_LIMIT_PREFIX = 'ratelimit';
+const BUCKET_NAMESPACE = 'bucket';
+const GLOBAL_NAMESPACE = 'global';
+
+export interface IRateLimitKeyFactory {
+	getIdentifierKey(identifier: string): string;
+	getBucketKey(bucket: string): string;
+	getGlobalKey(identifier: string): string;
+}
+
+export class RateLimitKeyFactory implements IRateLimitKeyFactory {
+	getIdentifierKey(identifier: string): string {
+		assertNonEmptyString(identifier, 'identifier');
+		return `${RATE_LIMIT_PREFIX}:${identifier}`;
+	}
+
+	getBucketKey(bucket: string): string {
+		assertNonEmptyString(bucket, 'bucket');
+		return `${RATE_LIMIT_PREFIX}:${BUCKET_NAMESPACE}:${bucket}`;
+	}
+
+	getGlobalKey(identifier: string): string {
+		assertNonEmptyString(identifier, 'identifier');
+		return `${RATE_LIMIT_PREFIX}:${GLOBAL_NAMESPACE}:${identifier}`;
+	}
+}