Jon Staab
48 lines
1.4 KiB
TypeScript
48 lines
1.4 KiB
TypeScript
import type {Filter} from "@welshman/util"
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import {isSignedEvent, SignedEvent} from "@welshman/util"
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import {push as basePush, pull as basePull, publishOne, requestOne} from "@welshman/net"
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import {repository} from "./core.js"
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import {getRelay} from "./relays.js"
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const query = (filters: Filter[]) =>
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repository.query(filters, {shouldSort: filters.every(f => f.limit === undefined)})
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export const hasNegentropy = (url: string) => {
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const relay = getRelay(url)
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if (relay?.negentropy) return true
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if (relay?.supported_nips?.includes?.(77)) return true
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if (relay?.software?.includes?.("strfry") && !relay?.version?.match(/^0\./)) return true
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return false
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}
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export type AppSyncOpts = {
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relays: string[]
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filters: Filter[]
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}
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export const pull = async ({relays, filters}: AppSyncOpts) => {
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const events = query(filters).filter(isSignedEvent)
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await Promise.all(
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relays.map(async relay => {
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await (hasNegentropy(relay)
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? basePull({filters, events, relays: [relay]})
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: requestOne({filters, relay, autoClose: true}))
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}),
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)
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}
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export const push = async ({relays, filters}: AppSyncOpts) => {
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const events = query(filters).filter(isSignedEvent)
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await Promise.all(
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relays.map(async relay => {
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await (hasNegentropy(relay)
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? basePush({filters, events, relays: [relay]})
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: Promise.all(events.map((event: SignedEvent) => publishOne({event, relay}))))
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}),
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)
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}
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