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Second pure piece of the "My Videos" tab: collapseUserVideos reduces all of a user's video events (every edit/revert/deletion the client holds) to one entry per addressable video, keeping the latest version — which carries the current state, including deleted:true when the latest is a tombstone (those are gone from the active feed but still matter here for storage cleanup). Filters to the owner only, drops invalid notes, sorts newest-first. Tests + mutation-verified: owner filtering, dedup-to-latest, deleted-latest preserved, re-publish-after-delete wins, invalid dropped, empty-pubkey returns nothing (never leak all videos). Flipping latest->oldest fails 3 scenarios. Build + full lint green. Co-Authored-By: Claude Opus 4.8 <[email protected]>
61 lines
2.3 KiB
JavaScript
61 lines
2.3 KiB
JavaScript
// Data aggregation for the "My Videos" management tab.
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//
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// The Nostr client keeps every version of every video the user has published
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// (edits, reverts, deletions) in `allEvents`. For a management view we want ONE
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// row per video reflecting its CURRENT state — i.e. the latest version per
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// addressable identity (root id / d-tag) — including videos whose latest version
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// is a deletion tombstone (those are gone from the active feed but still matter
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// here for storage cleanup). Pure/synchronous so it's deterministic + testable.
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import { getActiveKey } from "../../nostr/utils.js";
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/**
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* Collapse all of a user's video events into one entry per video, keeping the
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* latest version (highest created_at) of each — which carries the current state,
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* including `deleted: true` when the latest version is a tombstone.
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*
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* @param {Array<object>} videos parsed video notes (e.g. nostrClient.allEvents values)
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* @param {string} pubkey the owner's hex pubkey (only their videos are kept)
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* @returns {Array<object>} latest-per-video, newest first
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*/
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export function collapseUserVideos(videos, pubkey) {
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const target = typeof pubkey === "string" ? pubkey.toLowerCase() : "";
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if (!target) {
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return [];
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}
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const list = Array.isArray(videos) ? videos : [];
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const latestByKey = new Map();
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for (const video of list) {
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if (!video || typeof video !== "object" || video.invalid) {
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continue;
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}
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const videoPubkey =
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typeof video.pubkey === "string" ? video.pubkey.toLowerCase() : "";
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if (videoPubkey !== target) {
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continue;
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}
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const key = getActiveKey(video);
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if (!key) {
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continue;
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}
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const created = Number.isFinite(video.created_at)
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? Math.floor(video.created_at)
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: 0;
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const existing = latestByKey.get(key);
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const existingCreated =
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existing && Number.isFinite(existing.created_at)
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? Math.floor(existing.created_at)
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: -1;
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// >= so that, among same-timestamp versions, the last seen wins; the latest
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// version is the authoritative current state of the video.
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if (!existing || created >= existingCreated) {
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latestByKey.set(key, video);
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}
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}
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return Array.from(latestByKey.values()).sort(
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(a, b) => (Number(b.created_at) || 0) - (Number(a.created_at) || 0),
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);
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}
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