Split app/core up into domain-oriented files

src/app/repository.ts

@@ -0,0 +1,49 @@
+import {
+  deriveArray,
+  deriveDeduplicated,
+  deriveEventsAsc,
+  deriveEventsById,
+  deriveEventsByIdForUrl,
+  deriveEventsDesc,
+  getEventsByIdForUrl,
+  makeDeriveEvent,
+} from "@welshman/store"
+import {deriveRelay, repository, tracker} from "@welshman/app"
+import {sortEventsDesc} from "@welshman/util"
+import type {Filter} from "@welshman/util"
+import {load} from "@welshman/net"
+import {first} from "@welshman/lib"
+import {derived} from "svelte/store"
+export const deriveEvent = makeDeriveEvent({
+  repository,
+  includeDeleted: true,
+  onDerive: (filters: Filter[], relays: string[]) => load({filters, relays}),
+})
+
+export const deriveEvents = (filters: Filter[] = [{}]) =>
+  deriveEventsDesc(deriveEventsById({repository, filters}))
+
+export const getEventsForUrl = (url: string, filters: Filter[] = [{}]) =>
+  getEventsByIdForUrl({url, tracker, repository, filters}).values()
+
+export const deriveEventsForUrl = (url: string, filters: Filter[] = [{}]) =>
+  deriveArray(deriveEventsByIdForUrl({url, tracker, repository, filters}))
+
+export const deriveEventsForUrlAsc = (url: string, filters: Filter[] = [{}]) =>
+  deriveEventsAsc(deriveEventsByIdForUrl({url, tracker, repository, filters}))
+
+export const deriveEventsForUrlDesc = (url: string, filters: Filter[] = [{}]) =>
+  deriveEventsDesc(deriveEventsByIdForUrl({url, tracker, repository, filters}))
+
+export const deriveLatestEventForUrl = (url: string, filters: Filter[] = [{}]) =>
+  deriveDeduplicated(deriveEventsByIdForUrl({url, tracker, repository, filters}), $eventsById =>
+    first(sortEventsDesc($eventsById.values())),
+  )
+
+export const deriveRelaySignedEvents = (url: string, filters: Filter[] = [{}]) =>
+  derived(
+    [deriveRelay(url), deriveEventsForUrl(url, filters)],
+    ([relay, events]) => events,
+    // TODO: khatru doesn't support relay.self, uncomment when it's ready
+    // filter(spec({pubkey: relay.self}), events)
+  )