Split app/core up into domain-oriented files

src/app/reactions.ts

@@ -0,0 +1,37 @@
+import type {TrustedEvent} from "@welshman/util"
+import {REACTION, getTag, makeEvent} from "@welshman/util"
+import {publishThunk, tagEventForReaction} from "@welshman/app"
+import {PROTECTED} from "@app/groups"
+
+export type ReactionParams = {
+  protect: boolean
+  event: TrustedEvent
+  content: string
+  url?: string
+  tags?: string[][]
+}
+
+export const makeReaction = ({
+  url,
+  protect,
+  content,
+  event,
+  tags: paramTags = [],
+}: ReactionParams) => {
+  const tags = [...paramTags, ...tagEventForReaction(event, url)]
+  const groupTag = getTag("h", event.tags)
+
+  if (groupTag) {
+    tags.push(groupTag)
+  }
+
+  if (protect) {
+    tags.push(PROTECTED)
+  }
+
+  return makeEvent(REACTION, {content, tags})
+}
+
+export const publishReaction = ({relays, ...params}: ReactionParams & {relays: string[]}) => {
+  publishThunk({event: makeReaction({url: relays[0], ...params}), relays})
+}