37 lines
1.3 KiB
TypeScript
37 lines
1.3 KiB
TypeScript
import {derived} from "svelte/store"
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import {APP_DATA, tagSpec, tagValues} from "@welshman/util"
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import {AppData} from "@welshman/domain"
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import {Domain} from "@welshman/app"
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import {app} from "@app/core"
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import {deriveRelaySignedEvents} from "@app/repository"
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// NIP-78 app data published by the relay's self key. Each featured entry is a
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// ["content", <value>] tag (freeform text, intended to be a url or nevent).
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export const FEATURED_CONTENT_D = "flotilla/featured-content"
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export const deriveFeaturedContent = (url: string) =>
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derived(
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deriveRelaySignedEvents(url, [{kinds: [APP_DATA], "#d": [FEATURED_CONTENT_D]}]),
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([event]) => tagValues(tagSpec("content"), event?.tags ?? []),
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)
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// Publish the featured content list by asking the relay to sign it with its self
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// key (the unofficial NIP-86 "signevent" method).
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export const setFeaturedContent = async (url: string, content: string[]) => {
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const tags = content
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.map(value => value.trim())
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.filter(Boolean)
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.map(value => ["content", value])
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const writer = app
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.get()
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.use(Domain)
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.writer(AppData)
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.forceRelays(url)
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.setIdentifier(FEATURED_CONTENT_D)
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.addTags(...tags)
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const command = await app.get().use(Domain).command(writer)
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return command.publishAsRelay(url)
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}
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