Very slow mod search, and mod data component

components/CellData.tsx

@@ -48,9 +48,10 @@ const jsonFetcher = async (url: string): Promise<Cell | null> => {
 
 type Props = {
   selectedCell: { x: number; y: number };
+  counts: [number, number, number, number][];
 };
 
-const CellData: React.FC<Props> = ({ selectedCell }) => {
+const CellData: React.FC<Props> = ({ selectedCell, counts }) => {
   const { data, error } = useSWRImmutable(
     `https://cells.modmapper.com/${selectedCell.x}/${selectedCell.y}.json`,
     jsonFetcher
@@ -82,7 +83,7 @@ const CellData: React.FC<Props> = ({ selectedCell }) => {
             <span>{data.plugins_count}</span>
           </li>
         </ul>
-        <CellModList mods={data.mods} />
+        <CellModList mods={data.mods} counts={counts} />
       </>
     )
   );

components/CellModList.tsx

@@ -1,18 +1,14 @@
 import { format } from "date-fns";
 import React from "react";
-import useSWRImmutable from "swr/immutable";
 
 import styles from "../styles/CellModList.module.css";
 import type { Mod } from "./CellData";
 
 const NEXUS_MODS_URL = "https://www.nexusmods.com/skyrimspecialedition";
-const LIVE_DOWNLOAD_COUNTS_URL =
-  "https://staticstats.nexusmods.com/live_download_counts/mods/1704.csv";
-
-const csvFetcher = (url: string) => fetch(url).then((res) => res.text());
 
 type Props = {
   mods: Mod[];
+  counts: [number, number, number, number][];
 };
 
 type ModWithCounts = Mod & {
@@ -21,18 +17,7 @@ type ModWithCounts = Mod & {
   views: number;
 };
 
-const CellModList: React.FC<Props> = ({ mods }) => {
-  // The live download counts are not really immutable, but I'd still rather load them once per session
-  const { data, error } = useSWRImmutable(LIVE_DOWNLOAD_COUNTS_URL, csvFetcher);
-
-  if (error)
-    return <div>{`Error loading live download counts: ${error.message}`}</div>;
-  if (!data) return <div>Loading...</div>;
-
-  const counts = data
-    .split("\n")
-    .map((line) => line.split(",").map((count) => parseInt(count, 10)));
-
+const CellModList: React.FC<Props> = ({ mods, counts }) => {
   const modsWithCounts: ModWithCounts[] = mods.map((mod) => {
     const modCounts = counts.find((count) => count[0] === mod.nexus_mod_id);
     return {

components/ModData.tsx

@@ -0,0 +1,123 @@
+import { format } from "date-fns";
+import React from "react";
+import useSWRImmutable from "swr/immutable";
+
+import styles from "../styles/ModData.module.css";
+
+export interface CellCoord {
+  x: number;
+  y: number;
+}
+
+export interface Mod {
+  id: number;
+  name: string;
+  nexus_mod_id: number;
+  author_name: string;
+  author_id: number;
+  category_name: string;
+  category_id: number;
+  description: string;
+  thumbnail_link: string;
+  game_id: number;
+  updated_at: string;
+  created_at: string;
+  last_update_at: string;
+  first_upload_at: string;
+  last_updated_files_at: string;
+  cells: CellCoord[];
+}
+
+const NEXUS_MODS_URL = "https://www.nexusmods.com/skyrimspecialedition";
+
+const jsonFetcher = async (url: string): Promise<Mod | null> => {
+  const res = await fetch(url);
+
+  if (!res.ok) {
+    if (res.status === 404) {
+      return null;
+    }
+    const error = new Error("An error occurred while fetching the data.");
+    throw error;
+  }
+  return res.json();
+};
+
+type Props = {
+  selectedMod: number;
+  counts: [number, number, number, number][];
+};
+
+const ModData: React.FC<Props> = ({ selectedMod, counts }) => {
+  const { data, error } = useSWRImmutable(
+    `https://mods.modmapper.com/${selectedMod}.json`,
+    jsonFetcher
+  );
+
+  if (error && error.status === 404) {
+    return <div>Mod could not be found.</div>;
+  } else if (error) {
+    return <div>{`Error loading mod data: ${error.message}`}</div>;
+  }
+  if (data === undefined)
+    return <div className={styles.status}>Loading...</div>;
+  if (data === null)
+    return <div className={styles.status}>Mod could not be found.</div>;
+
+  let numberFmt = new Intl.NumberFormat("en-US");
+  const modCounts = counts.find((count) => count[0] === data.nexus_mod_id);
+  const total_downloads = modCounts ? modCounts[1] : 0;
+  const unique_downloads = modCounts ? modCounts[2] : 0;
+  const views = modCounts ? modCounts[3] : 0;
+
+  if (selectedMod && data) {
+    return (
+      <>
+        <h1>
+          <a
+            href={`${NEXUS_MODS_URL}/mods/${data.nexus_mod_id}`}
+            className={styles.link}
+          >
+            {data.name}
+          </a>
+        </h1>
+        <div>
+          <strong>Category:&nbsp;</strong>
+          <a
+            href={`${NEXUS_MODS_URL}/mods/categories/${data.category_id}`}
+            className={styles.link}
+          >
+            {data.category_name}
+          </a>
+        </div>
+        <div>
+          <strong>Author:&nbsp;</strong>
+          <a
+            href={`${NEXUS_MODS_URL}/users/${data.author_id}`}
+            className={styles.link}
+          >
+            {data.author_name}
+          </a>
+        </div>
+        <div>
+          <strong>Uploaded:</strong>{" "}
+          {format(new Date(data.first_upload_at), "d MMM y")}
+        </div>
+        <div>
+          <strong>Last Update:</strong>{" "}
+          {format(new Date(data.last_update_at), "d MMM y")}
+        </div>
+        <div>
+          <strong>Total Downloads:</strong> {numberFmt.format(total_downloads)}
+        </div>
+        <div>
+          <strong>Unique Downloads:</strong>{" "}
+          {numberFmt.format(unique_downloads)}
+        </div>
+      </>
+    );
+  }
+  return null;
+};
+
+export default ModData;

components/SearchBar.tsx

@@ -2,8 +2,10 @@ import React, { useEffect, useState, useRef } from "react";
 import { useRouter } from "next/router";
 import type mapboxgl from "mapbox-gl";
 import Fuse from "fuse.js";
+import useSWRImmutable from "swr/immutable";
 
 import styles from "../styles/SearchBar.module.css";
+import { join } from "path/posix";
 
 type Props = {
   clearSelectedCell: () => void;
@@ -11,8 +13,8 @@ type Props = {
 };
 
 interface Mod {
-  title: string;
-  nexus_mod_id: number;
+  name: string;
+  id: number;
 }
 
 interface SearchResult {
@@ -20,15 +22,36 @@ interface SearchResult {
   refIndex: number;
 }
 
-const list: Mod[] = [
-  { title: "Unofficial Skyrim Special Edition Patch", nexus_mod_id: 1 },
-  { title: "Enhanced Lights and FX", nexus_mod_id: 2 },
-  { title: "Majestic Mountains", nexus_mod_id: 3 },
-];
+const jsonFetcher = async (url: string): Promise<Mod | null> => {
+  const res = await fetch(url);
+
+  if (!res.ok) {
+    if (res.status === 404) {
+      return null;
+    }
+    const error = new Error("An error occurred while fetching the data.");
+    throw error;
+  }
+  return res.json();
+};
 
 const SearchBar: React.FC<Props> = ({ clearSelectedCell, map }) => {
   const router = useRouter();
-  const fuse = new Fuse(list, { keys: ["title"] });
+
+  const fuse = useRef<Fuse<Mod> | null>(null) as React.MutableRefObject<
+    Fuse<Mod>
+  >;
+
+  const { data, error } = useSWRImmutable(
+    `https://mods.modmapper.com/mod_search_index.json`,
+    jsonFetcher
+  );
+
+  useEffect(() => {
+    if (data && !fuse.current) {
+      fuse.current = new Fuse(data as unknown as Mod[], { keys: ["name"] });
+    }
+  }, [data]);
 
   const searchInput = useRef<HTMLInputElement | null>(null);
   const [search, setSearch] = useState<string>("");
@@ -54,17 +77,19 @@ const SearchBar: React.FC<Props> = ({ clearSelectedCell, map }) => {
 
   const onChange = (e: React.ChangeEvent<HTMLInputElement>) => {
     setSearch(e.target.value);
-    const results: { item: Mod; refIndex: number }[] = fuse.search(
+    if (fuse.current) {
+      const results: { item: Mod; refIndex: number }[] = fuse.current.search(
         e.target.value
       );
       setResults(results);
+    }
   };
 
   const onChooseResult =
     (item: Mod) =>
     (e: React.MouseEvent<HTMLElement> | React.TouchEvent<HTMLElement>) => {
       clearSelectedCell();
-      router.push({ query: { mod: item.nexus_mod_id } });
+      router.push({ query: { mod: item.id } });
       setSearch("");
       setResults([]);
       setClickingResult(false);
@@ -91,17 +116,18 @@ const SearchBar: React.FC<Props> = ({ clearSelectedCell, map }) => {
         }}
         value={search}
         ref={searchInput}
+        disabled={!data}
       />
       {results.length > 0 && (
         <ul className={styles["search-results"]}>
           {results.map((result) => (
             <li
-              key={result.item.nexus_mod_id}
+              key={result.item.id}
               onClick={onChooseResult(result.item)}
               onTouchStart={() => setClickingResult(true)}
               onMouseDown={() => setClickingResult(true)}
             >
-              {result.item.title}
+              {result.item.name}
             </li>
           ))}
         </ul>

components/Sidebar.tsx

@@ -1,9 +1,16 @@
-import React from "react";
+import React, { useEffect, useState } from "react";
 import { useRouter } from "next/router";
+import useSWRImmutable from "swr/immutable";
 
 import CellData from "./CellData";
+import ModData from "./ModData";
 import styles from "../styles/Sidebar.module.css";
+import { render } from "react-dom";
 
+const LIVE_DOWNLOAD_COUNTS_URL =
+  "https://staticstats.nexusmods.com/live_download_counts/mods/1704.csv";
+
+const csvFetcher = (url: string) => fetch(url).then((res) => res.text());
 interface Cell {
   x: number;
   y: number;
@@ -18,6 +25,43 @@ type Props = {
 
 const Sidebar: React.FC<Props> = ({ selectedCell, clearSelectedCell, map }) => {
   const router = useRouter();
+  // The live download counts are not really immutable, but I'd still rather load them once per session
+  const { data, error } = useSWRImmutable(LIVE_DOWNLOAD_COUNTS_URL, csvFetcher);
+  const [counts, setCounts] = useState<
+    [number, number, number, number][] | null
+  >(null);
+
+  useEffect(() => {
+    if (data) {
+      setCounts(
+        data
+          .split("\n")
+          .map((line) =>
+            line.split(",").map((count) => parseInt(count, 10))
+          ) as [number, number, number, number][]
+      );
+    }
+  }, [setCounts, data]);
+
+  const renderLoadError = (error: Error) => (
+    <div>{`Error loading live download counts: ${error.message}`}</div>
+  );
+
+  const renderLoading = () => <div>Loading...</div>;
+
+  const renderCellData = (selectedCell: { x: number; y: number }) => {
+    if (error) return renderLoadError(error);
+    if (!counts) return renderLoading();
+
+    return <CellData selectedCell={selectedCell} counts={counts} />;
+  };
+
+  const renderModData = (selectedMod: number) => {
+    if (error) return renderLoadError(error);
+    if (!counts) return renderLoading();
+
+    return <ModData selectedMod={selectedMod} counts={counts} />;
+  };
 
   const onClose = () => {
     clearSelectedCell();
@@ -32,16 +76,17 @@ const Sidebar: React.FC<Props> = ({ selectedCell, clearSelectedCell, map }) => {
         <h1>
           Cell {selectedCell.x}, {selectedCell.y}
         </h1>
-        {selectedCell && <CellData selectedCell={selectedCell} />}
+        {renderCellData(selectedCell)}
       </div>
     );
   } else if (router.query.mod) {
+    const modId = parseInt(router.query.mod as string, 10);
     return (
       <div className={styles.sidebar}>
         <button className={styles.close} onClick={onClose}>
           ✖
         </button>
-        <h1>Mod {router.query.mod}</h1>
+        {!Number.isNaN(modId) && renderModData(modId)}
       </div>
     );
   } else {

styles/ModData.module.css

@@ -0,0 +1,3 @@
+.status {
+  margin-top: 24px;
+}