chore: import upstream snapshot with attribution

integrations/teams/src/actions/typing-indicator.ts

@@ -0,0 +1,31 @@
+import { ActivityTypes } from 'botbuilder'
+import { getAdapter, getConversationReference } from '../utils'
+import * as bp from '.botpress'
+
+const DEFAULT_TIMEOUT = 5000
+
+export const startTypingIndicator: bp.IntegrationProps['actions']['startTypingIndicator'] = async ({
+  ctx,
+  client,
+  input,
+}) => {
+  const { conversationId, timeout } = input
+  const expiration = new Date(Date.now() + (timeout ?? DEFAULT_TIMEOUT))
+  const adapter = getAdapter(ctx.configuration)
+  const convRef = await getConversationReference({ conversationId, client })
+  await adapter.continueConversation(convRef, async (turnContext) => {
+    await turnContext.sendActivity({
+      type: ActivityTypes.Typing,
+      expiration,
+    })
+  })
+  return {}
+}
+
+export const stopTypingIndicator: bp.IntegrationProps['actions']['stopTypingIndicator'] = async () => {
+  // Deleting the activity is not supported on all bot framework channels.
+  // Further testing in Teams will be required to determine if deleting the
+  // typing indicator is supported, should we want to stop it early.
+  // Do nothing for now (typing indicator still stops on new message and after timeout)
+  return {}
+}