Add themes page

src/app/commands.ts

@@ -0,0 +1,73 @@
+import {goto} from '$app/navigation'
+import {append, uniqBy, now} from '@welshman/lib'
+import {GROUPS, asDecryptedEvent, readList, editList, makeList, createList} from "@welshman/util"
+import {pushToast} from '@app/toast'
+import {pk, signer, repository, INDEXER_RELAYS} from '@app/base'
+import {splitGroupId, loadRelay, loadGroup, getWriteRelayUrls, loadRelaySelections, publish, ensurePlaintext} from '@app/state'
+
+export type ModifyTags = (tags: string[][]) => string[][]
+
+export const updateList = async (kind: number, modifyTags: ModifyTags) => {
+  const $pk = pk.get()!
+  const $signer = signer.get()!
+  const [prev] = repository.query([{kinds: [kind], authors: [$pk]}])
+
+  // Preserve content instead of use encrypted tags because kind 3 content is used for
+  // relay selections in many places. Content isn't supported for mutes or relays so this is ok
+  const relays = [...INDEXER_RELAYS, ...getWriteRelayUrls(await loadRelaySelections($pk))]
+  const encrypt = (content: string) => $signer.nip44.encrypt($pk, content)
+
+  let encryptable
+  if (prev) {
+    const content = await ensurePlaintext(prev)
+    const list = readList(asDecryptedEvent(prev, {content}))
+    const publicTags = modifyTags(list.publicTags)
+
+    encryptable = editList({...list, publicTags})
+  } else {
+    const list = makeList({kind})
+    const publicTags = modifyTags(list.publicTags)
+
+    encryptable = createList({...list, publicTags})
+  }
+
+  const template = await encryptable.reconcile(encrypt)
+  const event = await $signer.sign({...template, created_at: now()})
+
+  await publish({event, relays})
+}
+
+export const joinGroup = async (id: string) => {
+  const [url, nom] = splitGroupId(id)
+  const relay = await loadRelay(url)
+
+  if (!relay) {
+    return pushToast({
+      theme: "error",
+      message: "Sorry, we weren't able to find that relay."
+    })
+  }
+
+  if (!relay.supported_nips?.includes(29)) {
+    return pushToast({
+      theme: "error",
+      message: "Sorry, it looks like that relay doesn't support nostr spaces."
+    })
+  }
+
+  const group = await loadGroup(nom, [url])
+
+  if (!group) {
+    return pushToast({
+      theme: "error",
+      message: "Sorry, we weren't able to find that space."
+    })
+  }
+
+  await updateList(GROUPS, (tags: string[][]) => uniqBy(t => t.join(''), append(["group", nom, url], tags)))
+
+  goto(`/spaces/${nom}`)
+  pushToast({
+    message: "Welcome to the space!"
+  })
+}