Jon Staab
53 lines
1.4 KiB
TypeScript
53 lines
1.4 KiB
TypeScript
import {fromPairs, last, first, parseJson} from "@welshman/lib"
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import {getAddress} from "./Address.js"
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import {getAddressTags, getKindTagValues} from "./Tags.js"
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import type {TrustedEvent} from "./Events.js"
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export type Handler = {
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kind: number
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name: string
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about: string
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image: string
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identifier: string
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event: TrustedEvent
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website?: string
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lud16?: string
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nip05?: string
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}
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export const readHandlers = (event: TrustedEvent) => {
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const {d: identifier} = fromPairs(event.tags)
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const meta = parseJson(event.content)
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const normalizedMeta = {
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name: meta?.name || meta?.display_name || "",
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image: meta?.image || meta?.picture || "",
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about: meta?.about || "",
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website: meta?.website || "",
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lud16: meta?.lud16 || "",
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nip05: meta?.nip05 || "",
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}
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// If our meta is missing important stuff, don't bother showing it
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if (!normalizedMeta.name || !normalizedMeta.image) {
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return []
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}
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return getKindTagValues(event.tags).map(kind => ({
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...normalizedMeta,
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kind,
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identifier,
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event,
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})) as Handler[]
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}
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export const getHandlerKey = (handler: Handler) => `${handler.kind}:${getAddress(handler.event)}`
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export const displayHandler = (handler?: Handler, fallback = "") => handler?.name || fallback
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export const getHandlerAddress = (event: TrustedEvent) => {
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const tags = getAddressTags(event.tags)
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const tag = tags.find(t => last(t) === "web") || first(tags)
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return tag?.[1]
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}
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