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Optimize deriveDisplaysByPubkey

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This commit is contained in:
Jon Staab 2026-08-31 13:56:42 -07:00
parent 8cb89f362c
commit 4f584e3f5d
1 changed files with 26 additions and 11 deletions
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37
src/app/social.ts
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@ -1,5 +1,5 @@
import {derived} from "svelte/store" import {derived} from "svelte/store"
import {pushToMapKey, removeUndefined, shuffle, sortBy, uniqBy} from "@welshman/lib" import {noop, pushToMapKey, removeUndefined, shuffle, sortBy, uniqBy} from "@welshman/lib"
import { import {
COMMENT, COMMENT,
addressTags, addressTags,
@ -12,20 +12,35 @@ import {
} from "@welshman/util" } from "@welshman/util"
import type {TrustedEvent} from "@welshman/util" import type {TrustedEvent} from "@welshman/util"
import {withGetter} from "@welshman/store" import {withGetter} from "@welshman/store"
import {getCommentTagValues, getReplyTagValues} from "@welshman/domain" import {displayPubkey, getCommentTagValues, getReplyTagValues} from "@welshman/domain"
import {FollowLists, MuteLists} from "@welshman/app" import {FollowLists, MuteLists, Profiles} from "@welshman/app"
import {deriveUserItem, profiles, user} from "@app/core" import {deriveUserItem, fromApp, profiles, user} from "@app/core"
import {DEFAULT_PUBKEYS} from "@app/env" import {DEFAULT_PUBKEYS} from "@app/env"
// The display names for a group of people, as a store rather than a snapshot. A display starts const profileIndex = fromApp($app => $app.use(Profiles).index.$)
// out as the author's npub and only becomes their name once the profile loads, so reading it once
// leaves a name frozen as bech32 — and reading it that way never asks for the profile at all. export const deriveDisplaysByPubkey = (pubkeys: string[], url?: string) => {
export const deriveDisplaysByPubkey = (pubkeys: string[], url?: string) => const relays = removeUndefined([url])
derived(
pubkeys.map(pubkey => profiles.get().display(pubkey, removeUndefined([url])).$), // Load profiles
displays => new Map(pubkeys.map((pubkey, i) => [pubkey, displays[i]])), for (const pubkey of pubkeys) {
if (pubkey) {
profiles.get().load(pubkey, relays).catch(noop)
}
}
return derived(
profileIndex,
$index =>
new Map(
pubkeys.map(pubkey => [
pubkey,
pubkey ? ($index.get(pubkey)?.display() ?? displayPubkey(pubkey)) : "",
]),
),
new Map<string, string>(), new Map<string, string>(),
) )
}
export const bootstrapPubkeys = derived(deriveUserItem(FollowLists), $userFollowList => { export const bootstrapPubkeys = derived(deriveUserItem(FollowLists), $userFollowList => {
const appPubkeys = DEFAULT_PUBKEYS.split(",") const appPubkeys = DEFAULT_PUBKEYS.split(",")