From 754ddeaa8d3e3e4f3efc93d5bb22c68c31bb5c36 Mon Sep 17 00:00:00 2001
From: Ellie Huxtable <ellie@elliehuxtable.com>
Date: Mon, 6 May 2024 08:11:47 +0100
Subject: feat(ui): scroll history infinitely (#1999)

* wip, history scrolls right!

* wip

* virtual scroll fucking worksssss

* paging works :)

* scroll search results now too
---
 ui/src/pages/History.tsx | 53 ++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 47 insertions(+), 6 deletions(-)

(limited to 'ui/src/pages')

diff --git a/ui/src/pages/History.tsx b/ui/src/pages/History.tsx
index 91ed9824..6eaa6f67 100644
--- a/ui/src/pages/History.tsx
+++ b/ui/src/pages/History.tsx
@@ -1,11 +1,17 @@
-import { useEffect } from "react";
+import { useEffect, useState, useRef } from "react";
+import { useVirtualizer } from "@tanstack/react-virtual";
 
 import HistoryList from "@/components/HistoryList.tsx";
 import HistorySearch from "@/components/HistorySearch.tsx";
 import Stats from "@/components/history/Stats.tsx";
 import Drawer from "@/components/Drawer.tsx";
+import InfiniteHistory from "@/components/InfiniteHistory.tsx";
+
 import { useStore } from "@/state/store";
 
+import { inspectHistory, listHistory } from "@/state/models";
+import { invoke } from "@tauri-apps/api/core";
+
 function Header() {
   return (
     <div className="md:flex md:items-center md:justify-between">
@@ -49,29 +55,64 @@ function Header() {
 export default function Search() {
   const history = useStore((state) => state.shellHistory);
   const refreshHistory = useStore((state) => state.refreshShellHistory);
+  const historyNextPage = useStore((state) => state.historyNextPage);
+
+  let [query, setQuery] = useState("");
 
   useEffect(() => {
+    (async () => {
+      // nothing rn
+    })();
+
     refreshHistory();
   }, []);
 
+  const parentRef = useRef();
+
+  const rowVirtualizer = useVirtualizer({
+    count: history.length,
+    getScrollElement: () => parentRef.current,
+    estimateSize: () => 90,
+    overscan: 5,
+  });
+
+  useEffect(() => {
+    const [lastItem] = rowVirtualizer.getVirtualItems().slice(-1);
+
+    if (!lastItem) return; // no undefined plz
+    if (lastItem.index < history.length - 1) return; // if we're not at the end yet, bail
+
+    // we're at the end! more rows plz!
+    historyNextPage(query);
+  }, [rowVirtualizer.getVirtualItems()]);
+
   return (
     <>
       <div className="pl-60">
-        <div className="p-10">
+        <div className="p-10 history-header">
           <Header />
           <p>A history of all the commands you run in your shell.</p>
         </div>
 
-        <div className="flex h-16 shrink-0 items-center gap-x-4 border-b border-t border-gray-200 bg-white px-4 shadow-sm sm:gap-x-6 sm:px-6 lg:px-8">
+        <div className="flex h-16 shrink-0 items-center gap-x-4 border-b border-t border-gray-200 bg-white px-4 shadow-sm sm:gap-x-6 sm:px-6 lg:px-8 history-search">
           <HistorySearch
-            refresh={(query?: string) => {
+            query={query}
+            setQuery={(q) => {
+              setQuery(q);
+              refreshHistory(q);
+            }}
+            refresh={() => {
               refreshHistory(query);
             }}
           />
         </div>
 
-        <main>
-          <HistoryList history={history} />
+        <main className="overflow-y-scroll history-list" ref={parentRef}>
+          <HistoryList
+            history={history}
+            items={rowVirtualizer.getVirtualItems()}
+            height={rowVirtualizer.getTotalSize()}
+          />
         </main>
       </div>
     </>
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