Add a few utilities

packages/util/src/List.ts

@@ -1,4 +1,4 @@
-import {parseJson, nth, nthEq} from "@welshman/lib"
+import {parseJson, ensurePlural, nth} from "@welshman/lib"
 import {Address} from "./Address"
 import {isShareableRelayUrl} from "./Relay"
 import {Encryptable, DecryptedEvent} from "./Encryptable"
@@ -45,5 +45,10 @@ export const createList = ({kind, publicTags = [], privateTags = []}: List) =>
 export const editList = ({kind, publicTags = [], privateTags = []}: PublishedList) =>
   new Encryptable({kind, tags: publicTags}, {content: JSON.stringify(privateTags)})
 
-export const getListValues = (tagName: string, list: List | undefined) =>
-  [...list?.publicTags || [], ...list?.privateTags || []].filter(nthEq(0, tagName)).map(nth(1))
+export const getListValues = (tagName: string | string[], list: List | undefined) => {
+  const tagNames = ensurePlural(tagName)
+  const allTags = [...list?.publicTags || [], ...list?.privateTags || []]
+  const filteredTags = allTags.filter(t => tagNames.includes(t[0])).map(nth(1))
+
+  return filteredTags
+}

packages/util/src/Repository.ts

@@ -140,6 +140,12 @@ export class Repository<E extends HashedEvent = TrustedEvent> extends Emitter {
   }
 
   publish = (event: E, {shouldNotify = true} = {}): boolean => {
+    if (!event?.id) {
+      console.warn("Attempted to publish invalid event to repository", event)
+
+      return false
+    }
+
     // If we've already seen this event, or it's been deleted, we're done
     if (this.eventsById.get(event.id) || this.isDeleted(event)) {
       return false

packages/util/src/Tags.ts

@@ -1,5 +1,5 @@
 import type {OmitStatics} from '@welshman/lib'
-import {Fluent, nth, nthEq, ensurePlural} from '@welshman/lib'
+import {Fluent, mapVals, nth, nthEq, ensurePlural} from '@welshman/lib'
 import {isRelayUrl, normalizeRelayUrl} from './Relay'
 import {Address, isContextAddress} from './Address'
 import {GROUP, COMMUNITY} from './Kinds'
@@ -249,3 +249,6 @@ export const getAncestorTags = (tags: string[][]) => {
 
   return {roots, replies, mentions}
 }
+
+export const getAncestorTagValues = (tags: string[][]) =>
+  mapVals(tags => tags.map(nth(1)), getAncestorTags(tags))