Jon Staab
83 lines
2.4 KiB
TypeScript
83 lines
2.4 KiB
TypeScript
import {tryCatch, batcher, postJson} from "@welshman/lib"
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import {queryProfile, displayNip05} from "@welshman/util"
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import type {Handle} from "@welshman/util"
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import {deriveDeduplicated} from "@welshman/store"
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import {LoadableData} from "./clientData.js"
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import type {IClient} from "./client.js"
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import {Profiles} from "./profiles.js"
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/**
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* NIP-05 handles, keyed by nip05 identifier. A "local" loadable collection:
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* items aren't nostr events, they're fetched over HTTP (either directly from
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* each domain's `.well-known/nostr.json`, or via a dufflepud proxy to protect
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* user privacy). Depends on the profiles collection to resolve a pubkey's
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* handle.
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*/
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export class Handles extends LoadableData<Handle> {
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constructor(ctx: IClient) {
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super(ctx)
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}
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fetch = batcher(800, async (nip05s: string[]) => {
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const result = new Map<string, Handle>()
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// Use dufflepud if it's set up to protect user privacy, otherwise fetch directly
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if (this.ctx.config.dufflepudUrl) {
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const res: any = await tryCatch(
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async () =>
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await postJson(`${this.ctx.config.dufflepudUrl}/handle/info`, {handles: nip05s}),
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)
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for (const {handle: nip05, info} of res?.data || []) {
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if (info) {
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result.set(nip05, {...info, nip05})
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}
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}
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} else {
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const results = await Promise.all(
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nip05s.map(async nip05 => ({
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nip05,
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info: await tryCatch(async () => await queryProfile(nip05)),
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})),
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)
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for (const {nip05, info} of results) {
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if (info) {
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result.set(nip05, {...info, nip05})
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}
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}
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}
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for (const [nip05, info] of result) {
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this.set(nip05, info)
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}
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return nip05s.map(nip05 => result.get(nip05))
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})
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loadForPubkey = async (pubkey: string, relays: string[] = []) => {
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const $profile = await this.ctx.use(Profiles).load(pubkey, relays)
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return $profile?.nip05 ? this.load($profile.nip05) : undefined
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}
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deriveForPubkey = (pubkey: string, relays: string[] = []) => {
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this.loadForPubkey(pubkey, relays)
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return deriveDeduplicated(
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[this.index, this.ctx.use(Profiles).derived(pubkey, relays)],
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([$handlesByNip05, $profile]) => {
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if (!$profile?.nip05) return undefined
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const handle = $handlesByNip05.get($profile.nip05)
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if (handle?.pubkey !== pubkey) return undefined
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return handle
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},
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)
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}
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display = (nip05: string) => displayNip05(nip05)
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}
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