Initial Poll message receive support

ts/textsecure/processDataMessage.ts

@@ -22,6 +22,9 @@ import type {
   ProcessedPreview,
   ProcessedSticker,
   ProcessedReaction,
+  ProcessedPollCreate,
+  ProcessedPollVote,
+  ProcessedPollTerminate,
   ProcessedDelete,
   ProcessedGiftBadge,
   ProcessedStoryContext,
@@ -309,6 +312,53 @@ export function processReaction(
   };
 }
 
+export function processPollCreate(
+  pollCreate?: Proto.DataMessage.IPollCreate | null
+): ProcessedPollCreate | undefined {
+  if (!pollCreate) {
+    return undefined;
+  }
+
+  return {
+    question: dropNull(pollCreate.question),
+    options: pollCreate.options?.filter(isNotNil) || [],
+    allowMultiple: Boolean(pollCreate.allowMultiple),
+  };
+}
+
+export function processPollVote(
+  pollVote?: Proto.DataMessage.IPollVote | null
+): ProcessedPollVote | undefined {
+  if (!pollVote) {
+    return undefined;
+  }
+
+  const targetAuthorAci = fromAciUuidBytesOrString(
+    pollVote.targetAuthorAciBinary,
+    undefined,
+    'PollVote.targetAuthorAci'
+  );
+
+  return {
+    targetAuthorAci,
+    targetTimestamp: pollVote.targetSentTimestamp?.toNumber(),
+    optionIndexes: pollVote.optionIndexes?.filter(isNotNil) || [],
+    voteCount: pollVote.voteCount || 0,
+  };
+}
+
+export function processPollTerminate(
+  pollTerminate?: Proto.DataMessage.IPollTerminate | null
+): ProcessedPollTerminate | undefined {
+  if (!pollTerminate) {
+    return undefined;
+  }
+
+  return {
+    targetTimestamp: pollTerminate.targetSentTimestamp?.toNumber(),
+  };
+}
+
 export function processDelete(
   del?: Proto.DataMessage.IDelete | null
 ): ProcessedDelete | undefined {
@@ -407,6 +457,9 @@ export function processDataMessage(
     requiredProtocolVersion: dropNull(message.requiredProtocolVersion),
     isViewOnce: Boolean(message.isViewOnce),
     reaction: processReaction(message.reaction),
+    pollCreate: processPollCreate(message.pollCreate),
+    pollVote: processPollVote(message.pollVote),
+    pollTerminate: processPollTerminate(message.pollTerminate),
     delete: processDelete(message.delete),
     bodyRanges: filterAndClean(message.bodyRanges),
     groupCallUpdate: dropNull(message.groupCallUpdate),