40 lines
1 KiB
JavaScript
40 lines
1 KiB
JavaScript
/**
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* In-process WORM archive: append-only records + bloom.
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* @module archive
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*/
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import { Bloom } from './bloom.js';
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export class WormArchive {
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/**
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* @param {string} archiveId
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*/
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constructor(archiveId) {
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this.archiveId = archiveId;
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this.bloom = new Bloom();
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/** @type {Map<string, object[]>} */
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this.byHash = new Map();
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}
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/**
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* @param {{ sha256: string, kind: string, record: object }} put
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*/
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put(put) {
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const key = String(put.sha256).toLowerCase();
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const list = this.byHash.get(key) ?? [];
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list.push({ kind: put.kind, record: put.record, archiveId: this.archiveId, storedAt: new Date().toISOString() });
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this.byHash.set(key, list);
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this.bloom.add(key);
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}
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/**
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* Bloom miss → null (caller must stay silent). Hit → records (may be empty if false positive).
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* @param {string} sha256
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* @returns {object[]|null}
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*/
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query(sha256) {
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const key = String(sha256).toLowerCase();
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if (!this.bloom.mightHave(key)) return null;
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return this.byHash.get(key) ?? [];
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}
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}
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