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thePR0M3TH3ANandClaude Opus 4.8
80f058f67c
A cold hard-refresh on a profile previously sat on "Loading videos…" for ~5s — the optimistic in-memory cache is empty on cold start (ingest hasn't injected yet) and the grid waited on relay connection. Now channelProfileVideos.js persists the last-rendered wall per author (localStorage bitvid:channel-videos:v1) and loadUserVideos paints it immediately on cold load, before relays connect; the live fetch then replaces it. Bounded (60 videos/channel, 20 channels LRU-evicted) and strips the heavy raw `tags` array. Same proven pattern as the main feed's optimistic cache. Closes TODO 17d per-channel cache. Tests + mutation-verified (round-trip, tag-strip, per-channel + channel-count caps). 1267/1268 unit (known flake). Co-Authored-By: Claude Opus 4.8 <[email protected]>
65 lines
2.3 KiB
JavaScript
65 lines
2.3 KiB
JavaScript
// Per-channel persisted cache: instant cold-load paint of a profile wall.
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// Round-trips last-seen videos via localStorage, strips heavy tags, and bounds
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// both per-channel count and number of cached channels.
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import "./test-helpers/setup-localstorage.mjs";
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import assert from "node:assert/strict";
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import test from "node:test";
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import {
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loadCachedChannelVideos,
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saveCachedChannelVideos,
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} from "../js/channelProfileVideos.js";
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const PK = "a".repeat(64);
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test("round-trips videos for a channel, stripping raw tags", () => {
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localStorage.clear();
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saveCachedChannelVideos(PK, [
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{ id: "v1", title: "One", pubkey: PK, created_at: 1, url: "https://e/1.mp4", tags: [["e", "x"]] },
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]);
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const out = loadCachedChannelVideos(PK);
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assert.equal(out.length, 1);
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assert.equal(out[0].id, "v1");
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assert.equal(out[0].url, "https://e/1.mp4");
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assert.equal(out[0].tags, undefined, "heavy tags array not persisted");
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});
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test("scoped per pubkey", () => {
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localStorage.clear();
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saveCachedChannelVideos(PK, [{ id: "v1", title: "x", pubkey: PK, created_at: 1 }]);
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assert.equal(loadCachedChannelVideos("b".repeat(64)).length, 0);
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});
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test("caps videos per channel (60)", () => {
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localStorage.clear();
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const many = Array.from({ length: 100 }, (_, i) => ({
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id: `v${i}`,
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title: `t${i}`,
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pubkey: PK,
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created_at: i,
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}));
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saveCachedChannelVideos(PK, many);
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assert.equal(loadCachedChannelVideos(PK).length, 60);
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});
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test("evicts the least-recently-saved channel past the cap (20)", () => {
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localStorage.clear();
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for (let i = 0; i < 22; i += 1) {
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const pk = i.toString(16).padStart(64, "0");
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saveCachedChannelVideos(pk, [{ id: `v${i}`, title: "t", pubkey: pk, created_at: i }]);
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}
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// The two oldest channels (0,1) should have been evicted; the newest remains.
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const oldest = "0".padStart(64, "0");
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const newest = (21).toString(16).padStart(64, "0");
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assert.equal(loadCachedChannelVideos(oldest).length, 0, "oldest evicted");
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assert.equal(loadCachedChannelVideos(newest).length, 1, "newest kept");
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});
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test("missing / empty inputs are safe no-ops", () => {
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localStorage.clear();
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saveCachedChannelVideos("", [{ id: "v" }]); // no pubkey
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saveCachedChannelVideos(PK, null); // bad videos
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assert.deepEqual(loadCachedChannelVideos(PK), []);
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assert.deepEqual(loadCachedChannelVideos(""), []);
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});
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