32 lines
977 B
JavaScript
32 lines
977 B
JavaScript
// utils/ctxCache.js
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import crypto from "node:crypto";
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import pool from "../config/mysqlPool.js";
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import { query } from '../shared/db/withEncryption.js';
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/**
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* @param {string} userId
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* @param {string} careerProfileId
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* @param {string} summaryText ← pre-built summary
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* @returns {string} ← cached or stored summary
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*/
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export async function cacheSummary(userId, careerProfileId, summaryText) {
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const hash = crypto.createHash("sha1").update(summaryText).digest("hex");
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// 1. try cache
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const [rows] = await pool.query(
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`SELECT ctx_text FROM context_cache
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WHERE user_id=? AND career_profile_id=? AND ctx_hash=? LIMIT 1`,
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[userId, careerProfileId, hash]
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);
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if (rows[0]) return rows[0].ctx_text;
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// 2. miss → store
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await pool.query(
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`REPLACE INTO context_cache
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(user_id, career_profile_id, ctx_hash, ctx_text)
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VALUES (?,?,?,?)`,
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[userId, careerProfileId, hash, summaryText]
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);
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return summaryText;
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}
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