publish kind 9 quote after room content creation for cross-client interoperability

src/app/components/ThreadCreate.svelte

@@ -1,13 +1,14 @@
 <script lang="ts">
   import {writable} from "svelte/store"
   import {makeEvent, THREAD} from "@welshman/util"
-  import {publishThunk} from "@welshman/app"
+  import {publishThunk, waitForThunkError} from "@welshman/app"
   import {isMobile, preventDefault} from "@lib/html"
   import Paperclip from "@assets/icons/paperclip-2.svg?dataurl"
   import AltArrowLeft from "@assets/icons/alt-arrow-left.svg?dataurl"
   import Icon from "@lib/components/Icon.svelte"
   import Field from "@lib/components/Field.svelte"
   import Button from "@lib/components/Button.svelte"
+  import Spinner from "@lib/components/Spinner.svelte"
   import ModalHeader from "@lib/components/ModalHeader.svelte"
   import ModalTitle from "@lib/components/ModalTitle.svelte"
   import ModalSubtitle from "@lib/components/ModalSubtitle.svelte"
@@ -19,7 +20,7 @@
   import {PROTECTED} from "@app/core/state"
   import {makeEditor} from "@app/editor"
   import {DraftKey} from "@app/util/drafts"
-  import {canEnforceNip70} from "@app/core/commands"
+  import {canEnforceNip70, publishRoomQuote} from "@app/core/commands"
 
   type Values = {
     content?: string | object
@@ -29,9 +30,10 @@
   type Props = {
     url: string
     h?: string
+    shareToChat?: boolean
   }
 
-  const {url, h}: Props = $props()
+  const {url, h, shareToChat = false}: Props = $props()
   const draftKey = new DraftKey<Values>(`thread:${url}:${h ?? ""}`)
   const initialValues = draftKey.get()
   const shouldProtect = canEnforceNip70(url)
@@ -43,7 +45,7 @@
   const selectFiles = () => editor.then(ed => ed.commands.selectFiles())
 
   const submit = async () => {
-    if ($uploading) return
+    if ($uploading || loading) return
 
     if (!title) {
       return pushToast({
@@ -64,23 +66,43 @@
 
     const tags = [...ed.storage.nostr.getEditorTags(), ["title", title]]
 
-    if (await shouldProtect) {
-      tags.push(PROTECTED)
+    loading = true
+
+    try {
+      const protect = await shouldProtect
+
+      if (protect) {
+        tags.push(PROTECTED)
+      }
+
+      if (h) {
+        tags.push(["h", h])
+      }
+
+      const threadThunk = publishThunk({
+        relays: [url],
+        event: makeEvent(THREAD, {content, tags}),
+      })
+
+      const error = await waitForThunkError(threadThunk)
+
+      if (error) {
+        return pushToast({theme: "error", message: error})
+      }
+
+      draftKey.clear()
+      history.back()
+
+      if (shareToChat) {
+        publishRoomQuote({url, h, parent: threadThunk.event, protect})
+      }
+    } finally {
+      loading = false
     }
-
-    if (h) {
-      tags.push(["h", h])
-    }
-
-    publishThunk({
-      relays: [url],
-      event: makeEvent(THREAD, {content, tags}),
-    })
-
-    draftKey.clear()
-    history.back()
   }
 
+  let loading = $state(false)
+
   let title = $state(initialValues?.title ?? "")
   let content = $state(initialValues?.content ?? "")
 
@@ -138,7 +160,8 @@
       <Button
         data-tip="Add an image"
         class="tooltip tooltip-left absolute bottom-1 right-2"
-        onclick={selectFiles}>
+        onclick={selectFiles}
+        disabled={loading}>
         {#if $uploading}
           <span class="loading loading-spinner loading-xs"></span>
         {:else}
@@ -148,10 +171,12 @@
     </div>
   </ModalBody>
   <ModalFooter>
-    <Button class="btn btn-link" onclick={back}>
+    <Button class="btn btn-link" onclick={back} disabled={loading}>
       <Icon icon={AltArrowLeft} />
       Go back
     </Button>
-    <Button type="submit" class="btn btn-primary">Create Thread</Button>
+    <Button type="submit" class="btn btn-primary" disabled={$uploading || loading}>
+      <Spinner {loading}>Create Thread</Spinner>
+    </Button>
   </ModalFooter>
 </Modal>