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thePR0M3TH3ANandClaude Opus 4.8
3df398d7ad
The upload modal's Hashtags section now shows chips of the user's most-used past
hashtags ("Reuse a tag from your videos:"). Clicking one adds it to the NIP-71 't'
repeater; already-added chips dim + disable; the row is hidden for users with no
past tags.
- js/utils/hashtagSuggestions.js: pure rankHashtagsByFrequency(videos) — count =
number of the user's videos using each tag, normalized (case + '#') and deduped
per video, ranked by count then alphabetically. Reads video.nip71.hashtags, falls
back to raw event 't' tags minus bitvid's fixed t=video marker.
- app.getUserHashtagSuggestions() sources the user's own videos via
nostrService.getActiveVideosByAuthors([pubkey]) and ranks them (top 12), injected
into the modal as getHashtagSuggestions.
- UploadModal renders the chips on open and wires clicks through the existing
Nip71FormManager (addRepeaterEntry + setFieldValue, dedup via collectRepeaterValues).
Tests: tests/hashtag-suggestions.test.mjs (5 — per-video counting, normalization,
marker exclusion, tie-break + limit, empty input). Lint + build green.
Co-Authored-By: Claude Opus 4.8 <[email protected]>
87 lines
2.9 KiB
JavaScript
87 lines
2.9 KiB
JavaScript
// Upload-modal hashtag suggestions (TODO #45): rank a user's own past hashtags by
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// how many of their videos use each, for one-tap reuse chips.
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//
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// test_integrity_note:
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// change_type: ["new_tests"]
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// scenarios:
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// - id: SCN-hashtag-suggestions-rank
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// given: "a user's video objects with nip71.hashtags / nip71.t / raw t tags"
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// when: "rankHashtagsByFrequency runs"
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// then: "tags are normalized, deduped per video, ranked by video-count then name"
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// observable_outcomes:
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// - "count = number of videos using the tag (once per video)"
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// - "case/#-prefix normalized and merged"
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// - "bitvid's fixed t=video marker excluded from raw tags (but a real 'video' hashtag counts)"
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// - "ties broken alphabetically; limit respected; empty input -> []"
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// determinism_controls:
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// - "pure function; explicit inputs"
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// anti_cheat_rationale:
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// prevents: ["hard-coded return value"]
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// relaxation:
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// did_relax_any_assertion: false
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import test from "node:test";
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import { strict as assert } from "node:assert";
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import {
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rankHashtagsByFrequency,
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extractVideoHashtags,
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} from "../js/utils/hashtagSuggestions.js";
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test("counts videos-per-tag, normalizing case and the # prefix", () => {
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const ranked = rankHashtagsByFrequency([
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{ nip71: { hashtags: ["Nostr", "Bitcoin"] } },
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{ nip71: { hashtags: ["nostr", "#bitcoin"] } },
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{ nip71: { hashtags: ["NOSTR"] } },
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]);
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assert.deepEqual(ranked, [
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{ tag: "nostr", count: 3 },
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{ tag: "bitcoin", count: 2 },
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]);
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});
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test("a tag repeated within ONE video counts once for that video", () => {
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const ranked = rankHashtagsByFrequency([
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{ nip71: { hashtags: ["nostr", "nostr", "#Nostr"] } },
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]);
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assert.deepEqual(ranked, [{ tag: "nostr", count: 1 }]);
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});
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test("falls back to raw event t tags and excludes the fixed 'video' marker", () => {
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assert.deepEqual(
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extractVideoHashtags({
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tags: [
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["t", "video"],
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["t", "bitcoin"],
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["d", "abc"],
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["t", ""],
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],
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}),
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["bitcoin"],
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);
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// But a genuine nip71 "video" hashtag is NOT stripped (only the raw marker is).
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const ranked = rankHashtagsByFrequency([{ nip71: { hashtags: ["video"] } }]);
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assert.deepEqual(ranked, [{ tag: "video", count: 1 }]);
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});
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test("ties break alphabetically and limit is respected", () => {
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const ranked = rankHashtagsByFrequency(
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[
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{ nip71: { hashtags: ["zebra", "apple", "mango"] } },
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{ nip71: { hashtags: ["zebra", "apple"] } },
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{ nip71: { hashtags: ["apple"] } },
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],
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{ limit: 2 },
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);
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// apple:3, zebra:2, mango:1 -> top 2
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assert.deepEqual(ranked, [
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{ tag: "apple", count: 3 },
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{ tag: "zebra", count: 2 },
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]);
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});
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test("empty / malformed input yields an empty list", () => {
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assert.deepEqual(rankHashtagsByFrequency([]), []);
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assert.deepEqual(rankHashtagsByFrequency(null), []);
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assert.deepEqual(rankHashtagsByFrequency([{}, { nip71: {} }, { tags: "nope" }]), []);
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});
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