Eliminate unknown groups and contacts from search results

ts/models/conversations.ts

@@ -1912,6 +1912,7 @@ export class ConversationModel extends window.Backbone
       sortedGroupMembers,
       timestamp,
       title: this.getTitle(),
+      titleNoDefault: this.getTitleNoDefault(),
       typingContactId: typingMostRecent?.senderId,
       searchableTitle: isMe(this.attributes)
         ? window.i18n('noteToSelf')
@@ -4950,7 +4951,21 @@ export class ConversationModel extends window.Backbone
     });
   }
 
-  getTitle({ isShort = false }: { isShort?: boolean } = {}): string {
+  getTitle(options?: { isShort?: boolean }): string {
+    const title = this.getTitleNoDefault(options);
+    if (title) {
+      return title;
+    }
+
+    if (isDirectConversation(this.attributes)) {
+      return window.i18n('unknownContact');
+    }
+    return window.i18n('unknownGroup');
+  }
+
+  getTitleNoDefault({ isShort = false }: { isShort?: boolean } = {}):
+    | string
+    | undefined {
     if (isDirectConversation(this.attributes)) {
       const username = this.get('username');
 
@@ -4959,11 +4974,10 @@ export class ConversationModel extends window.Backbone
         (isShort ? this.get('profileName') : undefined) ||
         this.getProfileName() ||
         this.getNumber() ||
-        (username && window.i18n('at-username', { username })) ||
-        window.i18n('unknownContact')
+        (username && window.i18n('at-username', { username }))
       );
     }
-    return this.get('name') || window.i18n('unknownGroup');
+    return this.get('name');
   }
 
   getProfileName(): string | undefined {

ts/state/ducks/conversations.ts

@@ -185,6 +185,7 @@ export type ConversationType = {
   // This is used by the CompositionInput for @mentions
   sortedGroupMembers?: Array<ConversationType>;
   title: string;
+  titleNoDefault?: string;
   searchableTitle?: string;
   unreadCount?: number;
   isSelected?: boolean;

ts/state/selectors/conversations.ts

@@ -472,7 +472,7 @@ export const getAllComposableConversations = createSelector(
         !isConversationUnregistered(conversation) &&
         // All conversation should have a title except in weird cases where
         // they don't, in that case we don't want to show these for Forwarding.
-        conversation.title &&
+        conversation.titleNoDefault &&
         hasDisplayInfo(conversation)
     )
 );

ts/test-both/helpers/getDefaultConversation.ts

@@ -36,6 +36,7 @@ export function getDefaultConversation(
     markedUnread: Boolean(overrideProps.markedUnread),
     sharedGroupNames: [],
     title: `${firstName} ${lastName}`,
+    titleNoDefault: `${firstName} ${lastName}`,
     type: 'direct' as const,
     uuid: UUID.generate().toString(),
     ...overrideProps,

ts/test-both/state/selectors/conversations_test.ts

@@ -65,21 +65,26 @@ describe('both/state/selectors/conversations', () => {
   };
 
   function makeConversation(id: string): ConversationType {
+    const title = `${id} title`;
     return getDefaultConversation({
       id,
-      searchableTitle: `${id} title`,
-      title: `${id} title`,
+      searchableTitle: title,
+      title,
+      titleNoDefault: title,
     });
   }
 
   function makeConversationWithUuid(
     id: string
   ): ConversationType & { uuid: UUIDStringType } {
+    const title = `${id} title`;
+
     return getDefaultConversationWithUuid(
       {
         id,
-        searchableTitle: `${id} title`,
-        title: `${id} title`,
+        searchableTitle: title,
+        title,
+        titleNoDefault: title,
       },
       UUID.fromPrefix(id).toString()
     );
@@ -555,7 +560,8 @@ describe('both/state/selectors/conversations', () => {
           ...makeConversation('convo-6'),
           profileSharing: true,
           name: 'Should Be Dropped (no title)',
-          title: null,
+          title: 'Unknown group',
+          titleNoDefault: undefined,
         },
         'convo-7': {
           ...makeConversation('convo-7'),

ts/util/filterAndSortConversations.ts

@@ -118,7 +118,9 @@ export function filterAndSortConversationsByRecent(
   if (searchTerm.length) {
     const now = Date.now();
 
-    return searchConversations(conversations, searchTerm, regionCode)
+    const withoutUnknown = conversations.filter(item => item.titleNoDefault);
+
+    return searchConversations(withoutUnknown, searchTerm, regionCode)
       .slice()
       .sort((a, b) => {
         const { activeAt: aActiveAt = 0, left: aLeft = false } = a.item;