Can now modify landing page. Fallback images for games and mods. Cached events. #29
@ -14,6 +14,7 @@ import { MetadataController, UserRelaysType } from './metadata'
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*/
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export class RelayController {
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private static instance: RelayController
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private events = new Map<string, Event>()
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private debug = true
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public connectedRelays: Relay[] = []
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@ -151,6 +152,16 @@ export class RelayController {
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// Wait for all publish operations to complete (either fulfilled or rejected)
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await Promise.allSettled(publishPromises)
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if (publishedOnRelays.length > 0) {
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// if the event was successfully published to relays then check if it contains the `aTag`
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// if so, then cache the event
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const aTag = event.tags.find((item) => item[0] === 'a')
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if (aTag && aTag[1]) {
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this.events.set(aTag[1], event)
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}
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}
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// Return the list of relay URLs where the event was published
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return publishedOnRelays
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}
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@ -335,13 +346,35 @@ export class RelayController {
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filter: Filter,
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relays: string[] = []
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): Promise<Event | null> => {
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// first check if event is present in cached map then return that
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// otherwise query relays
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if (filter['#a']) {
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const aTag = filter['#a'][0]
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const cachedEvent = this.events.get(aTag)
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if (cachedEvent) return cachedEvent
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}
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const events = await this.fetchEvents(filter, relays)
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// Sort events by creation date in descending order
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events.sort((a, b) => b.created_at - a.created_at)
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// Return the most recent event, or null if no events were received
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return events[0] || null
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if (events.length > 0) {
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const event = events[0]
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// if the aTag was specified in filter then cache the fetched event before returning
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if (filter['#a']) {
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const aTag = filter['#a'][0]
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this.events.set(aTag, event)
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}
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// return the event
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return event
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}
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// return null if event array is empty
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return null
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}
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/**
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@ -358,6 +391,15 @@ export class RelayController {
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hexKey: string,
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userRelaysType: UserRelaysType
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) => {
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// first check if event is present in cached map then return that
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// otherwise query relays
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if (filter['#a']) {
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const aTag = filter['#a'][0]
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const cachedEvent = this.events.get(aTag)
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if (cachedEvent) return cachedEvent
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}
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// Get an instance of the MetadataController, which manages user metadata and relays
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const metadataController = await MetadataController.getInstance()
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