Reduce number of SQL queries during conversation update

ts/sql/Client.ts

@@ -48,6 +48,7 @@ import {
   IdentityKeyType,
   ItemKeyType,
   ItemType,
+  LastConversationMessagesType,
   MessageType,
   MessageTypeUnhydrated,
   PreKeyType,
@@ -190,7 +191,6 @@ const dataInterface: ClientInterface = {
   searchMessagesInConversation,
 
   getMessageCount,
-  hasUserInitiatedMessages,
   saveMessage,
   saveMessages,
   removeMessage,
@@ -213,8 +213,7 @@ const dataInterface: ClientInterface = {
   getTapToViewMessagesNeedingErase,
   getOlderMessagesByConversation,
   getNewerMessagesByConversation,
-  getLastConversationActivity,
-  getLastConversationPreview,
+  getLastConversationMessages,
   getMessageMetricsForConversation,
   hasGroupCallHistoryMessage,
   migrateConversationMessages,
@@ -1063,10 +1062,6 @@ async function getMessageCount(conversationId?: string) {
   return channels.getMessageCount(conversationId);
 }
 
-async function hasUserInitiatedMessages(conversationId: string) {
-  return channels.hasUserInitiatedMessages(conversationId);
-}
-
 async function saveMessage(
   data: MessageType,
   options?: { forceSave?: boolean }
@@ -1267,7 +1262,7 @@ async function getNewerMessagesByConversation(
 
   return new MessageCollection(handleMessageJSON(messages));
 }
-async function getLastConversationActivity({
+async function getLastConversationMessages({
   conversationId,
   ourConversationId,
   Message,
@@ -1275,33 +1270,21 @@ async function getLastConversationActivity({
   conversationId: string;
   ourConversationId: string;
   Message: typeof MessageModel;
-}): Promise<MessageModel | undefined> {
-  const result = await channels.getLastConversationActivity({
+}): Promise<LastConversationMessagesType> {
+  const {
+    preview,
+    activity,
+    hasUserInitiatedMessages,
+  } = await channels.getLastConversationMessages({
     conversationId,
     ourConversationId,
   });
-  if (result) {
-    return new Message(result);
-  }
-  return undefined;
-}
-async function getLastConversationPreview({
-  conversationId,
-  ourConversationId,
-  Message,
-}: {
-  conversationId: string;
-  ourConversationId: string;
-  Message: typeof MessageModel;
-}): Promise<MessageModel | undefined> {
-  const result = await channels.getLastConversationPreview({
-    conversationId,
-    ourConversationId,
-  });
-  if (result) {
-    return new Message(result);
-  }
-  return undefined;
+
+  return {
+    preview: preview ? new Message(preview) : undefined,
+    activity: activity ? new Message(activity) : undefined,
+    hasUserInitiatedMessages,
+  };
 }
 async function getMessageMetricsForConversation(conversationId: string) {
   const result = await channels.getMessageMetricsForConversation(

ts/sql/Interface.ts

@@ -201,6 +201,18 @@ export type UnprocessedUpdateType = {
   decrypted?: string;
 };
 
+export type LastConversationMessagesServerType = {
+  activity?: MessageType;
+  preview?: MessageType;
+  hasUserInitiatedMessages: boolean;
+};
+
+export type LastConversationMessagesType = {
+  activity?: MessageModel;
+  preview?: MessageModel;
+  hasUserInitiatedMessages: boolean;
+};
+
 export type DataInterface = {
   close: () => Promise<void>;
   removeDB: () => Promise<void>;
@@ -302,7 +314,6 @@ export type DataInterface = {
     options?: { forceSave?: boolean }
   ) => Promise<void>;
   getMessageCount: (conversationId?: string) => Promise<number>;
-  hasUserInitiatedMessages: (conversationId: string) => Promise<boolean>;
   getAllMessageIds: () => Promise<Array<string>>;
   getMessageMetricsForConversation: (
     conversationId: string
@@ -476,14 +487,10 @@ export type ServerInterface = DataInterface & {
     conversationId: string,
     options?: { limit?: number; receivedAt?: number; sentAt?: number }
   ) => Promise<Array<MessageTypeUnhydrated>>;
-  getLastConversationActivity: (options: {
+  getLastConversationMessages: (options: {
     conversationId: string;
     ourConversationId: string;
-  }) => Promise<MessageType | undefined>;
-  getLastConversationPreview: (options: {
-    conversationId: string;
-    ourConversationId: string;
-  }) => Promise<MessageType | undefined>;
+  }) => Promise<LastConversationMessagesServerType>;
   getTapToViewMessagesNeedingErase: () => Promise<Array<MessageType>>;
   removeConversation: (id: Array<string> | string) => Promise<void>;
   removeMessage: (id: string) => Promise<void>;
@@ -576,16 +583,11 @@ export type ClientInterface = DataInterface & {
       MessageCollection: typeof MessageModelCollectionType;
     }
   ) => Promise<MessageModelCollectionType>;
-  getLastConversationActivity: (options: {
+  getLastConversationMessages: (options: {
     conversationId: string;
     ourConversationId: string;
     Message: typeof MessageModel;
-  }) => Promise<MessageModel | undefined>;
-  getLastConversationPreview: (options: {
-    conversationId: string;
-    ourConversationId: string;
-    Message: typeof MessageModel;
-  }) => Promise<MessageModel | undefined>;
+  }) => Promise<LastConversationMessagesType>;
   getTapToViewMessagesNeedingErase: (options: {
     MessageCollection: typeof MessageModelCollectionType;
   }) => Promise<MessageModelCollectionType>;

ts/sql/Server.ts

@@ -52,6 +52,7 @@ import {
   IdentityKeyType,
   ItemKeyType,
   ItemType,
+  LastConversationMessagesServerType,
   MessageMetricsType,
   MessageType,
   MessageTypeUnhydrated,
@@ -179,7 +180,6 @@ const dataInterface: ServerInterface = {
   searchMessagesInConversation,
 
   getMessageCount,
-  hasUserInitiatedMessages,
   saveMessage,
   saveMessages,
   removeMessage,
@@ -203,8 +203,7 @@ const dataInterface: ServerInterface = {
   getOlderMessagesByConversation,
   getNewerMessagesByConversation,
   getMessageMetricsForConversation,
-  getLastConversationActivity,
-  getLastConversationPreview,
+  getLastConversationMessages,
   hasGroupCallHistoryMessage,
   migrateConversationMessages,
 
@@ -3513,10 +3512,7 @@ async function getMessageCount(conversationId?: string): Promise<number> {
   return row['count(*)'];
 }
 
-// Called only for private conversations
-async function hasUserInitiatedMessages(
-  conversationId: string
-): Promise<boolean> {
+function hasUserInitiatedMessages(conversationId: string): boolean {
   const db = getInstance();
 
   // We apply the limit in the sub-query so that `json_extract` wouldn't run
@@ -3538,10 +3534,10 @@ async function hasUserInitiatedMessages(
                 'keychange',
                 'group-v1-migration',
                 'universal-timer-notification',
-                'change-number-notification'
+                'change-number-notification',
+                'group-v2-change'
               )
-            ) AND
-            json_extract(json, '$.expirationTimerUpdate') IS NULL
+            )
           LIMIT 1
         );
       `
@@ -4218,13 +4214,13 @@ function getNewestMessageForConversation(
   return row;
 }
 
-async function getLastConversationActivity({
+function getLastConversationActivity({
   conversationId,
   ourConversationId,
 }: {
   conversationId: string;
   ourConversationId: string;
-}): Promise<MessageType | undefined> {
+}): MessageType | undefined {
   const db = getInstance();
   const row = prepare(
     db,
@@ -4270,13 +4266,13 @@ async function getLastConversationActivity({
 
   return jsonToObject(row.json);
 }
-async function getLastConversationPreview({
+function getLastConversationPreview({
   conversationId,
   ourConversationId,
 }: {
   conversationId: string;
   ourConversationId: string;
-}): Promise<MessageType | undefined> {
+}): MessageType | undefined {
   const db = getInstance();
   const row = prepare(
     db,
@@ -4317,6 +4313,31 @@ async function getLastConversationPreview({
 
   return jsonToObject(row.json);
 }
+
+async function getLastConversationMessages({
+  conversationId,
+  ourConversationId,
+}: {
+  conversationId: string;
+  ourConversationId: string;
+}): Promise<LastConversationMessagesServerType> {
+  const db = getInstance();
+
+  return db.transaction(() => {
+    return {
+      activity: getLastConversationActivity({
+        conversationId,
+        ourConversationId,
+      }),
+      preview: getLastConversationPreview({
+        conversationId,
+        ourConversationId,
+      }),
+      hasUserInitiatedMessages: hasUserInitiatedMessages(conversationId),
+    };
+  })();
+}
+
 function getOldestUnreadMessageForConversation(
   conversationId: string
 ): MessageMetricsType | undefined {