Moves sendMessage and friends to redux

ts/util/clearConversationDraftAttachments.ts

@@ -0,0 +1,29 @@
+// Copyright 2022 Signal Messenger, LLC
+// SPDX-License-Identifier: AGPL-3.0-only
+
+import type { AttachmentDraftType } from '../types/Attachment';
+import { strictAssert } from './assert';
+import { deleteDraftAttachment } from './deleteDraftAttachment';
+
+export async function clearConversationDraftAttachments(
+  conversationId: string,
+  draftAttachments: ReadonlyArray<AttachmentDraftType> = []
+): Promise<void> {
+  const conversation = window.ConversationController.get(conversationId);
+  strictAssert(conversation, 'no conversation found');
+
+  conversation.set({
+    draftAttachments: [],
+    draftChanged: true,
+  });
+
+  window.reduxActions.composer.replaceAttachments(conversationId, []);
+
+  // We're fine doing this all at once; at most it should be 32 attachments
+  await Promise.all([
+    window.Signal.Data.updateConversation(conversation.attributes),
+    Promise.all(
+      draftAttachments.map(attachment => deleteDraftAttachment(attachment))
+    ),
+  ]);
+}