Split app/core up into domain-oriented files

src/app/social.ts

@@ -0,0 +1,57 @@
+import {derived} from "svelte/store"
+import {displayProfileByPubkey, getProfile, userFollowList, userMuteList} from "@welshman/app"
+import {shuffle, tryCatch} from "@welshman/lib"
+import {
+  getAddress,
+  getAddressTagValues,
+  getEventTagValues,
+  getListTags,
+  getParentAddrs,
+  getParentIds,
+  getPubkeyTagValues,
+  getTagValues,
+} from "@welshman/util"
+import type {TrustedEvent} from "@welshman/util"
+import {withGetter} from "@welshman/store"
+import {DEFAULT_PUBKEYS} from "@app/env"
+export const bootstrapPubkeys = derived(userFollowList, $userFollowList => {
+  const appPubkeys = DEFAULT_PUBKEYS.split(",")
+  const userPubkeys = shuffle(getPubkeyTagValues(getListTags($userFollowList)))
+
+  return userPubkeys.length > 5 ? userPubkeys : [...userPubkeys, ...appPubkeys]
+})
+
+export const isEventMuted = withGetter(
+  derived(userMuteList, $userMuteList => {
+    const pubkey = $userMuteList?.event.pubkey
+    const tags = getListTags($userMuteList)
+    const mutedEvents = new Set(getEventTagValues(tags))
+    const mutedPubkeys = new Set(getPubkeyTagValues(tags))
+    const mutedAddresses = new Set(getAddressTagValues(tags))
+    const mutedTopics = new Set(getTagValues("t", tags))
+    const mutedWords = getTagValues("word", tags)
+    const regex =
+      mutedWords.length > 0
+        ? new RegExp(`\\b(${mutedWords.map(w => w.toLowerCase().trim()).join("|")})\\b`)
+        : null
+
+    return (e: TrustedEvent) => {
+      if (!pubkey) return false
+      if (pubkey === e.pubkey) return false
+      if (mutedPubkeys.has(e.pubkey)) return true
+      if (mutedEvents.has(e.id)) return true
+      if (mutedAddresses.has(getAddress(e))) return true
+      if (getParentIds(e).some(id => mutedEvents.has(id))) return true
+      if (getParentAddrs(e).some(address => mutedAddresses.has(address))) return true
+      if (getTagValues("t", e.tags).some(t => mutedTopics.has(t))) return true
+
+      if (regex) {
+        if (e.content?.toLowerCase().match(regex)) return true
+        if (displayProfileByPubkey(e.pubkey).toLowerCase().match(regex)) return true
+        if (tryCatch(() => getProfile(e.pubkey)?.nip05?.match(regex))) return true
+      }
+
+      return false
+    }
+  }),
+)