Improve profile loading, add feeds util, add deriveIsDeleted, loosen up delta guess

packages/app/src/profiles.ts

@@ -1,7 +1,7 @@
 import {derived, readable} from 'svelte/store'
 import {readProfile, displayProfile, displayPubkey, PROFILE} from '@welshman/util'
 import type {SubscribeRequestWithHandlers} from "@welshman/net"
-import type {PublishedProfile, TrustedEvent} from "@welshman/util"
+import type {PublishedProfile} from "@welshman/util"
 import {deriveEventsMapped, withGetter} from '@welshman/store'
 import {repository, load} from './core'
 import {collection} from './collection'
@@ -34,9 +34,8 @@ export const {
     // better selections the moment we have a result, even if it's outdated
     await new Promise<void>(resolve => {
       loadRelaySelections(pubkey, {
-        onEvent: (event: TrustedEvent) => {
-          resolve()
-        }
+        onEvent: () => resolve(),
+        onComplete: () => resolve(),
       })
     })
 

packages/feeds/src/utils.ts

@@ -158,6 +158,8 @@ export const feedsFromFilter = ({since, until, ...filter}: Filter) => {
 export const feedFromFilter = (filter: Filter) =>
   makeIntersectionFeed(...feedsFromFilter(filter))
 
+export const feedsFromFilters = (filters: Filter[]) =>
+  makeUnionFeed(...filters.map(filter => feedFromFilter(filter)))
 
 export const walkFeed = (feed: Feed, visit: (feed: Feed) => void) => {
   visit(feed)

packages/store/src/index.ts

@@ -258,6 +258,17 @@ export const deriveEvent = (repository: Repository, idOrAddress: string) =>
     first
   )
 
+export const deriveIsDeleted = (repository: Repository, event: TrustedEvent) =>
+  custom<boolean>(setter => {
+    setter(repository.isDeleted(event))
+
+    const onUpdate = batch(300, () => setter(repository.isDeleted(event)))
+
+    repository.on("update", onUpdate)
+
+    return () => repository.off("update", onUpdate)
+  })
+
 export const deriveIsDeletedByAddress = (repository: Repository, event: TrustedEvent) =>
   custom<boolean>(setter => {
     setter(repository.isDeletedByAddress(event))

packages/util/src/Filters.ts

@@ -203,7 +203,7 @@ export const getFilterGenerality = (filter: Filter) => {
 }
 
 export const guessFilterDelta = (filters: Filter[], max = 60 * 60 * 24 * 7) =>
-  Math.round(max * Math.max(0.005, 1 - avg(filters.map(getFilterGenerality))))
+  Math.round(max * Math.max(0.01, 1 - avg(filters.map(getFilterGenerality))))
 
 // If a filter is specifying ids, we know how many results to expect
 export const getFilterResultCardinality = (filter: Filter) => {