chat: move time filter to another file as well

Author: williamstein

src/packages/frontend/chat/chat-log.tsx

@@ -20,7 +20,6 @@ import {
 import { VisibleMDLG } from "@cocalc/frontend/components";
 import useVirtuosoScrollHook from "@cocalc/frontend/components/virtuoso-scroll-hook";
 import { HashtagBar } from "@cocalc/frontend/editors/task-editor/hashtag-bar";
-import { webapp_client } from "@cocalc/frontend/webapp-client";
 import {
   cmp,
   hoursToTimeIntervalHuman,
@@ -274,16 +273,7 @@ export function getSortedDates(
     return { dates: [], numFolded: 0 };
   }
 
-  m = filterMessages({ messages: m, filter: search });
-
-  if (typeof filterRecentH === "number" && filterRecentH > 0) {
-    const now = webapp_client.server_time().getTime();
-    const cutoff = now - filterRecentH * 1000 * 60 * 60;
-    m = m.filter((msg) => {
-      const date = msg.get("date").getTime();
-      return date >= cutoff;
-    });
-  }
+  m = filterMessages({ messages: m, filter: search, filterRecentH });
 
   const v: [date: number, reply_to: number | undefined][] = [];
   for (const [date, message] of m) {

src/packages/frontend/chat/filter-messages.ts

@@ -8,21 +8,34 @@ import type { ChatMessages, ChatMessageTyped, MessageHistory } from "./types";
 import { search_match, search_split } from "@cocalc/util/misc";
 import { List } from "immutable";
 import type { TypedMap } from "@cocalc/frontend/app-framework";
+import { webapp_client } from "@cocalc/frontend/webapp-client";
 
 export function filterMessages({
   messages,
   filter,
+  filterRecentH,
 }: {
   // the messages to filter down
   messages: ChatMessages;
   filter?: string;
+  filterRecentH?: number;
 }) {
   if (filter) {
     const searchTerms = search_split(filter);
     messages = messages.filter((message) =>
       searchMatches(message, searchTerms),
     );
   }
+
+  if (typeof filterRecentH === "number" && filterRecentH > 0) {
+    const now = webapp_client.server_time().getTime();
+    const cutoff = now - filterRecentH * 1000 * 60 * 60;
+    messages = messages.filter((msg) => {
+      const date = msg.get("date").getTime();
+      return date >= cutoff;
+    });
+  }
+
   return messages;
 }