Merge pull request 'chore: prune old update files, fix update dialog' (#17) from dev into master

Reviewed-on: #17

README.md

@@ -12,6 +12,7 @@ The Launcher is a "plug and play thing", download it, place it on the desktop an
 
 - Automatic osu! client updating before Launch
 - Custom osu! Logo in MainMenu
+- Relax misses and much more
 - Account saving
 
 ## Build from source

electron/appInfo.js

@@ -1,4 +1,4 @@
 const appName = "EZPPLauncher";
-const appVersion = "2.1.1";
+const appVersion = "2.1.6";
 
 module.exports = { appName, appVersion };

electron/executeUtil.js

@@ -2,19 +2,19 @@ const childProcess = require("child_process");
 
 const runFile = (folder, file, args, onExit) => {
   childProcess.execFile(file, args, {
-        cwd: folder
+    cwd: folder,
   }, (_err, _stdout, _stdin) => {
     if (onExit) onExit();
-    })
-}
+  });
+};
 
 const runFileDetached = (folder, file, args) => {
-    const subProcess = childProcess.spawn(file + (args ? " " + args : ''), {
+  const subProcess = childProcess.spawn(file + (args ? " " + args : ""), {
     cwd: folder,
     detached: true,
-        stdio: 'ignore'
+    stdio: "ignore",
   });
   subProcess.unref();
-}
+};
 
 module.exports = { runFile, runFileDetached };

electron/fileUtil.js

@@ -0,0 +1,15 @@
+const fs = require("fs");
+
+function isWritable(filePath) {
+  let fileAccess = false;
+  try {
+    fs.closeSync(fs.openSync(filePath, "r+"));
+    fileAccess = true;
+  } catch {
+  }
+  return fileAccess;
+}
+
+module.exports = {
+  isWritable,
+};

electron/formattingUtil.js

@@ -1,13 +1,13 @@
 function formatBytes(bytes, decimals = 2) {
-    if (!+bytes) return '0 Bytes'
+  if (!+bytes) return "0 B";
 
-    const k = 1024
-    const dm = decimals < 0 ? 0 : decimals
-    const sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
+  const k = 1024;
+  const dm = decimals < 0 ? 0 : decimals;
+  const sizes = ["B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
 
-    const i = Math.floor(Math.log(bytes) / Math.log(k))
+  const i = Math.floor(Math.log(bytes) / Math.log(k));
 
-    return `${parseFloat((bytes / Math.pow(k, i)).toFixed(dm))}${sizes[i]}`
+  return `${parseFloat((bytes / Math.pow(k, i)).toFixed(dm))}${sizes[i]}`;
 }
 
 module.exports = { formatBytes };

electron/logging.js

@@ -0,0 +1,44 @@
+const fs = require("fs");
+const path = require("path");
+
+class Logger {
+  constructor(directory) {
+    this.directory = directory;
+    this.enabled = false;
+  }
+
+  async init() {
+    const filename = `${new Date().toISOString().replace(/:/g, "-")}.log`;
+    this.logPath = path.join(this.directory, filename);
+  }
+
+  async log(message) {
+    if (this.logPath === undefined || this.enabled == false) {
+      return;
+    }
+    if (!fs.existsSync(this.logPath)) {
+      await fs.promises.mkdir(this.directory, { recursive: true });
+      await fs.promises.writeFile(this.logPath, "");
+    }
+    const logMessage = `[${new Date().toISOString()}] LOG: ${message}`;
+    await fs.promises.appendFile(this.logPath, `${logMessage}\n`);
+    console.log(logMessage);
+  }
+
+  async error(message, error) {
+    if (this.logPath === undefined || this.enabled == false) {
+      return;
+    }
+    if (!fs.existsSync(this.logPath)) {
+      await fs.promises.mkdir(this.directory, { recursive: true });
+      await fs.promises.writeFile(this.logPath, "");
+    }
+    const errorMessage = `[${
+      new Date().toISOString()
+    }] ERROR: ${message}\n${error.stack}`;
+    await fs.promises.appendFile(this.logPath, `${errorMessage}\n`);
+    console.error(errorMessage);
+  }
+}
+
+module.exports = Logger;

electron/netUtils.js

@@ -0,0 +1,26 @@
+const { exec } = require("child_process");
+
+async function isNet8Installed() {
+    return new Promise((resolve) => {
+        exec("dotnet --list-runtimes", (error, stdout, stderr) => {
+            if (error) {
+                resolve(false);
+                return;
+            }
+            if (stderr) {
+                resolve(false);
+                return;
+            }
+            const version = stdout.trim();
+            for (const line of version.split('\n')) {
+                if (line.startsWith("Microsoft.WindowsDesktop.App 8.")) {
+                    resolve(true);
+                    break;
+                }
+            }
+            resolve(false);
+        })
+    });
+}
+
+module.exports = { isNet8Installed };

electron/osuUtil.js

@@ -10,6 +10,16 @@ const checkUpdateURL =
 const ignoredOsuEntities = [
   "osu!auth.dll",
 ];
+const gamemodes = {
+  0: "osu!",
+  1: "taiko",
+  2: "catch",
+  3: "mania",
+  4: "osu!(rx)",
+  5: "taiko(rx)",
+  6: "catch(rx)",
+  8: "osu!(ap)",
+};
 const osuEntities = [
   "avcodec-51.dll",
   "avformat-52.dll",
@@ -34,26 +44,7 @@ const osuEntities = [
   "scores.db",
 ];
 
-const patcherFiles = [
-  {
-    name: "patcher.exe",
-    url_download: "https://ez-pp.farm/assets/patcher.exe",
-    url_hash: "https://ez-pp.farm/assets/patcher.md5",
-  },
-  {
-    name: "patch.hook.dll",
-    url_download: "https://ez-pp.farm/assets/patch.hook.dll",
-    url_hash: "https://ez-pp.farm/assets/patch.hook.md5",
-  },
-];
-
-const uiFiles = [
-  {
-    name: "ezpp!ui.dll",
-    url_download: "https://ez-pp.farm/assets/ezpp!ui.dll",
-    url_hash: "https://ez-pp.farm/assets/ezpp!ui.md5",
-  },
-];
+const ezppLauncherUpdateList = "https://ez-pp.farm/ezpplauncher";
 
 async function isValidOsuFolder(path) {
   const allFiles = await fs.promises.readdir(path);
@@ -193,6 +184,7 @@ function downloadUpdateFiles(osuPath, updateFiles) {
 
   const startDownload = async () => {
     for (const updatePatch of updateFiles) {
+      try {
         const fileName = updatePatch.filename;
         const fileSize = updatePatch.filesize;
         const fileURL = updatePatch.url_full;
@@ -209,15 +201,7 @@ function downloadUpdateFiles(osuPath, updateFiles) {
             });
           },
         });
-      axiosDownloadWithProgress.data.on("end", () => {
-        eventEmitter.emit("data", {
-          fileName,
-          loaded: fileSize,
-          total: fileSize,
-          progress: 100,
-        });
-      });
-      try {
+
         if (fs.existsSync(path.join(osuPath, fileName))) {
           await fs.promises.rm(path.join(osuPath, fileName), {
             force: true,
@@ -231,6 +215,7 @@ function downloadUpdateFiles(osuPath, updateFiles) {
         console.log(err);
         eventEmitter.emit("error", {
           fileName,
+          error: err,
         });
       }
     }
@@ -255,66 +240,91 @@ function runOsuWithDevServer(osuPath, serverDomain, onExit) {
   runFile(osuPath, osuExecuteable, ["-devserver", serverDomain], onExit);
 }
 
-async function getPatcherUpdates(osuPath) {
+async function getEZPPLauncherUpdateFiles(osuPath) {
   const filesToDownload = [];
-
-  const patcherDir = path.join(osuPath, "EZPPLauncher");
-  if (!fs.existsSync(patcherDir)) fs.mkdirSync(patcherDir);
-
-  for (const patcherFile of patcherFiles) {
-    if (fs.existsSync(path.join(patcherDir, patcherFile.name))) {
-      const latestPatchFileHash = await (await fetch(patcherFile.url_hash))
-        .text();
-      const localPatchFileHash = crypto.createHash("md5").update(
-        fs.readFileSync(path.join(patcherDir, patcherFile.name)),
-      ).digest("hex");
-      if (
-        latestPatchFileHash.trim().toLowerCase() !=
-          localPatchFileHash.trim().toLowerCase()
-      ) filesToDownload.push(patcherFile);
-    } else filesToDownload.push(patcherFile);
+  const updateFilesRequest = await fetch(ezppLauncherUpdateList, {
+    method: "PATCH",
+  });
+  const updateFiles = await updateFilesRequest.json();
+  for (const updateFile of updateFiles) {
+    const filePath = path.join(
+      osuPath,
+      ...updateFile.folder.split("/"),
+      updateFile.name,
+    );
+    if (fs.existsSync(filePath)) {
+      const fileHash = updateFile.md5.toLowerCase();
+      const localFileHash = crypto.createHash("md5").update(
+        fs.readFileSync(filePath),
+      ).digest("hex").toLowerCase();
+      if (fileHash !== localFileHash) {
+        filesToDownload.push(updateFile);
+      }
+    } else {
+      filesToDownload.push(updateFile);
+    }
   }
-
   return filesToDownload;
 }
 
-function downloadPatcherUpdates(osuPath, patcherUpdates) {
+async function downloadEZPPLauncherUpdateFiles(osuPath, updateFiles) {
   const eventEmitter = new EventEmitter();
 
   const startDownload = async () => {
-    const patcherDir = path.join(osuPath, "EZPPLauncher");
-    if (!fs.existsSync(patcherDir)) fs.mkdirSync(patcherDir);
+    //NOTE: delete files that are not in the updateFiles array
+    const foldersToPrune = updateFiles.map(file => path.dirname(path.join(osuPath, ...file.folder.split("/"), file.name))).filter((folder, index, self) => self.indexOf(folder) === index);
+    for (const pruneFolder of foldersToPrune) {
+      //NOTE: check if the folder is not the osu root folder.
+      if (path.basename(pruneFolder) == "osu!")
+        continue;
+      for (const files of await fs.promises.readdir(pruneFolder)) {
+        const filePath = path.join(pruneFolder, files);
+        if (!updateFiles.some(file => path.join(osuPath, ...file.folder.split("/"), file.name) === filePath)) {
 
-    for (const patcherFile of patcherUpdates) {
-      const fileName = patcherFile.name;
-      const fileURL = patcherFile.url_download;
-      const axiosDownloadWithProgress = await axios.get(fileURL, {
+          await fs.promises.rm(filePath, { recursive: true, force: true });
+        }
+      }
+    }
+
+    for (const updateFile of updateFiles) {
+      try {
+        const filePath = path.join(
+          osuPath,
+          ...updateFile.folder.split("/"),
+          updateFile.name,
+        );
+        const folder = path.dirname(filePath);
+        if (!fs.existsSync(folder)) {
+          await fs.promises.mkdir(folder, { recursive: true });
+        }
+        const axiosDownloadWithProgress = await axios.get(updateFile.url, {
           responseType: "stream",
           onDownloadProgress: (progressEvent) => {
-          const { loaded, total } = progressEvent;
+            const fileSize = updateFile.size;
+            const { loaded } = progressEvent;
             eventEmitter.emit("data", {
-            fileName,
+              fileName: path.basename(filePath),
               loaded,
-            total,
-            progress: Math.floor((loaded / total) * 100),
+              total: fileSize,
+              progress: Math.floor((loaded / fileSize) * 100),
             });
           },
         });
 
-      try {
-        if (fs.existsSync(path.join(osuPath, "EZPPLauncher", fileName))) {
-          await fs.promises.rm(path.join(osuPath, "EZPPLauncher", fileName), {
+        if (fs.existsSync(filePath)) {
+          await fs.promises.rm(filePath, {
             force: true,
           });
         }
         await fs.promises.writeFile(
-          path.join(osuPath, "EZPPLauncher", fileName),
+          filePath,
           axiosDownloadWithProgress.data,
         );
       } catch (err) {
         console.log(err);
         eventEmitter.emit("error", {
-          fileName,
+          fileName: path.basename(filePath),
+          error: err,
         });
       }
     }
@@ -326,93 +336,49 @@ function downloadPatcherUpdates(osuPath, patcherUpdates) {
   };
 }
 
-async function getUIFiles(osuPath) {
-  const filesToDownload = [];
-
-  const ezppLauncherDir = path.join(osuPath, "EZPPLauncher");
-  if (!fs.existsSync(ezppLauncherDir)) fs.mkdirSync(ezppLauncherDir);
-
-  for (const uiFile of uiFiles) {
-    if (fs.existsSync(path.join(ezppLauncherDir, uiFile.name))) {
-      const latestPatchFileHash = await (await fetch(uiFile.url_hash)).text();
-      const localPatchFileHash = crypto.createHash("md5").update(
-        fs.readFileSync(path.join(ezppLauncherDir, uiFile.name)),
-      ).digest("hex");
-      if (
-        latestPatchFileHash.trim().toLowerCase() !=
-          localPatchFileHash.trim().toLowerCase()
-      ) filesToDownload.push(uiFile);
-    } else filesToDownload.push(uiFile);
-  }
-
-  return filesToDownload;
-}
-
-function downloadUIFiles(osuPath, uiFiles) {
-  const eventEmitter = new EventEmitter();
-
-  const startDownload = async () => {
-    const ezpplauncherDir = path.join(osuPath, "EZPPLauncher");
-    if (!fs.existsSync(ezpplauncherDir)) fs.mkdirSync(ezpplauncherDir);
-
-    for (const uiFile of uiFiles) {
-      const fileName = uiFile.name;
-      const fileURL = uiFile.url_download;
-      const axiosDownloadWithProgress = await axios.get(fileURL, {
-        responseType: "stream",
-        onDownloadProgress: (progressEvent) => {
-          const { loaded, total } = progressEvent;
-          eventEmitter.emit("data", {
-            fileName,
-            loaded,
-            total,
-            progress: Math.floor((loaded / total) * 100),
-          });
-        },
-      });
-      try {
-        if (fs.existsSync(path.join(osuPath, "EZPPLauncher", fileName))) {
-          await fs.promises.rm(path.join(osuPath, "EZPPLauncher", fileName), {
-            force: true,
-          });
-        }
-
-        await fs.promises.writeFile(
-          path.join(osuPath, "EZPPLauncher", fileName),
-          axiosDownloadWithProgress.data,
-        );
-      } catch (err) {
-        console.log(err);
-        eventEmitter.emit("error", {
-          fileName,
-        });
-      }
-    }
-  };
-
-  return {
-    eventEmitter,
-    startDownload,
-  };
-}
-
-async function replaceUIFile(osuPath, revert) {
+async function replaceUIFiles(osuPath, revert) {
   if (!revert) {
     const ezppUIFile = path.join(osuPath, "EZPPLauncher", "ezpp!ui.dll");
     const oldOsuUIFile = path.join(osuPath, "osu!ui.dll");
+    const ezppGameplayFile = path.join(
+      osuPath,
+      "EZPPLauncher",
+      "ezpp!gameplay.dll",
+    );
+    const oldOsuGameplayFile = path.join(osuPath, "osu!gameplay.dll");
+
     await fs.promises.rename(
       oldOsuUIFile,
       path.join(osuPath, "osu!ui.dll.bak"),
     );
     await fs.promises.rename(ezppUIFile, oldOsuUIFile);
+
+    await fs.promises.rename(
+      oldOsuGameplayFile,
+      path.join(osuPath, "osu!gameplay.dll.bak"),
+    );
+    await fs.promises.rename(ezppGameplayFile, oldOsuGameplayFile);
   } else {
     const oldOsuUIFile = path.join(osuPath, "osu!ui.dll");
     const ezppUIFile = path.join(osuPath, "EZPPLauncher", "ezpp!ui.dll");
+    const oldOsuGameplayFile = path.join(osuPath, "osu!gameplay.dll");
+    const ezppGameplayFile = path.join(
+      osuPath,
+      "EZPPLauncher",
+      "ezpp!gameplay.dll",
+    );
+
     await fs.promises.rename(oldOsuUIFile, ezppUIFile);
     await fs.promises.rename(
       path.join(osuPath, "osu!ui.dll.bak"),
       oldOsuUIFile,
     );
+
+    await fs.promises.rename(oldOsuGameplayFile, ezppGameplayFile);
+    await fs.promises.rename(
+      path.join(osuPath, "osu!gameplay.dll.bak"),
+      oldOsuGameplayFile,
+    );
   }
 }
 
@@ -473,12 +439,11 @@ module.exports = {
   getFilesThatNeedUpdate,
   downloadUpdateFiles,
   runOsuWithDevServer,
-  getPatcherUpdates,
-  downloadPatcherUpdates,
-  downloadUIFiles,
-  getUIFiles,
-  replaceUIFile,
+  replaceUIFiles,
   findOsuInstallation,
   updateOsuConfigHashes,
   runOsuUpdater,
+  getEZPPLauncherUpdateFiles,
+  downloadEZPPLauncherUpdateFiles,
+  gamemodes,
 };

electron/richPresence.js

@@ -35,7 +35,9 @@ module.exports = {
       richPresence = new DiscordRPC.AutoClient({ transport: "ipc" });
       richPresence.endlessLogin({ clientId });
       richPresence.once("ready", () => {
-        console.log("connected presence with user " + richPresence.user.username);
+        console.log(
+          "connected presence with user " + richPresence.user.username,
+        );
         richPresence.setActivity(currentStatus);
         intervalId = setInterval(() => {
           richPresence.setActivity(currentStatus);

main.js

@@ -3,15 +3,6 @@ const { app, BrowserWindow, Menu, ipcMain, dialog, shell } = require(
   "electron",
 );
 
-/* const unhandled = require("electron-unhandled");
-unhandled({
-  logger: console.error,
-  showDialog: true,
-  reportButton: () => {
-    shell.openExternal("https://ez-pp.farm/discord");
-  },
-}); */
-
 const path = require("path");
 const serve = require("electron-serve");
 const loadURL = serve({ directory: "public" });
@@ -27,14 +18,12 @@ const {
   downloadUpdateFiles,
   getUserConfig,
   runOsuWithDevServer,
-  getPatcherUpdates,
-  downloadPatcherUpdates,
-  getUIFiles,
-  downloadUIFiles,
-  replaceUIFile,
+  replaceUIFiles,
   findOsuInstallation,
-  updateOsuConfigHashes,
   runOsuUpdater,
+  gamemodes,
+  getEZPPLauncherUpdateFiles,
+  downloadEZPPLauncherUpdateFiles,
 } = require("./electron/osuUtil");
 const { formatBytes } = require("./electron/formattingUtil");
 const windowName = require("get-window-by-name");
@@ -47,6 +36,9 @@ const { appName, appVersion } = require("./electron/appInfo");
 const { updateAvailable, releasesUrl } = require("./electron/updateCheck");
 const fkill = require("fkill");
 const { checkImageExists } = require("./electron/imageUtil");
+const { isNet8Installed } = require("./electron/netUtils");
+const Logger = require("./electron/logging");
+const { isWritable } = require("./electron/fileUtil");
 
 // Keep a global reference of the window object, if you don't, the window will
 // be closed automatically when the JavaScript object is garbage collected.
@@ -55,6 +47,13 @@ let osuCheckInterval;
 let userOsuPath;
 let osuLoaded = false;
 let patch = false;
+let logger = new Logger(path.join(
+  process.platform == "win32"
+    ? process.env["LOCALAPPDATA"]
+    : process.env["HOME"],
+  "EZPPLauncher",
+  "logs",
+));
 
 let currentUser = undefined;
 
@@ -75,10 +74,18 @@ function startOsuStatus() {
         osuLoaded = true;
 
         try {
-          const currentUserInfo = await fetch(`https://api.ez-pp.farm/get_player_info?name=${currentUser.username}&scope=info`);
+          const currentUserInfo = await fetch(
+            `https://api.ez-pp.farm/get_player_info?name=${currentUser.username}&scope=info`,
+          );
           const currentUserInfoJson = await currentUserInfo.json();
-          if ("player" in currentUserInfoJson && currentUserInfoJson.player != null) {
-            if ("info" in currentUserInfoJson.player && currentUserInfoJson.player.info != null) {
+          if (
+            "player" in currentUserInfoJson &&
+            currentUserInfoJson.player != null
+          ) {
+            if (
+              "info" in currentUserInfoJson.player &&
+              currentUserInfoJson.player.info != null
+            ) {
               const id = currentUserInfoJson.player.info.id;
               const username = currentUserInfoJson.player.info.name;
               richPresence.updateUser({
@@ -89,7 +96,6 @@ function startOsuStatus() {
             }
           }
         } catch {
-
         }
 
         setTimeout(() => {
@@ -97,7 +103,8 @@ function startOsuStatus() {
             const patcherExecuteable = path.join(
               userOsuPath,
               "EZPPLauncher",
-              "patcher.exe",
+              "patcher",
+              "osu!.patcher.exe",
             );
             if (fs.existsSync(patcherExecuteable)) {
               runFileDetached(userOsuPath, patcherExecuteable);
@@ -109,13 +116,26 @@ function startOsuStatus() {
       const windowTitle = firstInstance.processTitle;
       lastOsuStatus = windowTitle;
       const currentStatusRequest = await fetch(
-        "https://api.ez-pp.farm/get_player_status?name=" + currentUser.username,
+        "https://api.ez-pp.farm/v1/get_player_status?name=" + currentUser.username,
       );
       const currentStatus = await currentStatusRequest.json();
 
       if (!("player_status" in currentStatus)) return;
       if (!("status" in currentStatus.player_status)) return;
 
+      const currentMode = currentStatus.player_status.status.mode;
+      const currentModeString = gamemodes[currentMode];
+
+      const currentInfoRequest = await fetch(
+        "https://api.ez-pp.farm/v1/get_player_info?name=" + currentUser.username + "&scope=all",
+      );
+      const currentInfo = await currentInfoRequest.json();
+      let currentUsername = currentInfo.player.info.name;
+      const currentId = currentInfo.player.info.id;
+      const currentStats = currentInfo.player.stats[currentMode];
+
+      currentUsername += ` (#${currentStats.rank})`;
+
       let largeImageKey = "ezppfarm";
       let details = "Idle...";
       let infoText = currentStatus.player_status.status.info_text.length > 0
@@ -182,6 +202,13 @@ function startOsuStatus() {
           break;
       }
 
+      details = `[${currentModeString}] ${details}`;
+
+      richPresence.updateUser({
+        username: currentUsername,
+        id: currentId,
+      });
+
       richPresence.updateStatus({
         details,
         state: infoText,
@@ -199,9 +226,19 @@ function stopOsuStatus() {
 
 function registerIPCPipes() {
   ipcMain.handle("ezpplauncher:login", async (e, args) => {
-    const hwid = getHwId();
+    let hwid = "";
+    try {
+      hwid = getHwId();
+    } catch (err) {
+      logger.error(`Failed to get HWID.`, err);
+      return {
+        code: 500,
+        message: "Failed to get HWID.",
+      };
+    }
     const timeout = new AbortController();
     const timeoutId = setTimeout(() => timeout.abort(), 8000);
+    logger.log(`Logging in with user ${args.username}...`);
     try {
       const fetchResult = await fetch("https://ez-pp.farm/login/check", {
         signal: timeout.signal,
@@ -226,14 +263,20 @@ function registerIPCPipes() {
           }
           currentUser = args;
           config.remove("guest");
-        }
+          logger.log(`Logged in as user ${args.username}!`);
+        } else logger.log(`Login failed for user ${args.username}.`);
         return result;
       }
+      logger.log(
+        `Login failed for user ${username}.\nResponse:\n${await fetchResult
+          .text()}`,
+      );
       return {
         code: 500,
         message: "Something went wrong while logging you in.",
       };
     } catch (err) {
+      logger.error("Error while logging in:", err);
       return {
         code: 500,
         message: "Something went wrong while logging you in.",
@@ -263,6 +306,7 @@ function registerIPCPipes() {
     }
     const timeout = new AbortController();
     const timeoutId = setTimeout(() => timeout.abort(), 8000);
+    logger.log(`Logging in with user ${username}...`);
     try {
       const fetchResult = await fetch("https://ez-pp.farm/login/check", {
         signal: timeout.signal,
@@ -285,16 +329,23 @@ function registerIPCPipes() {
             username: username,
             password: password,
           };
-        }
+          logger.log(`Logged in as user ${username}!`);
+        } else logger.log(`Login failed for user ${username}.`);
+
         return result;
       } else {
         config.remove("password");
       }
+      logger.log(
+        `Login failed for user ${username}.\nResponse:\n${await fetchResult
+          .text()}`,
+      );
       return {
         code: 500,
         message: "Something went wrong while logging you in.",
       };
     } catch (err) {
+      logger.error("Error while logging in:", err);
       return {
         code: 500,
         message: "Something went wrong while logging you in.",
@@ -307,6 +358,7 @@ function registerIPCPipes() {
     config.remove("password");
     config.set("guest", "1");
     currentUser = undefined;
+    logger.log("Logged in as guest user.");
   });
 
   ipcMain.handle("ezpplauncher:logout", (e) => {
@@ -314,6 +366,7 @@ function registerIPCPipes() {
     config.remove("password");
     config.remove("guest");
     currentUser = undefined;
+    logger.log("Loging out.");
     return true;
   });
 
@@ -330,6 +383,10 @@ function registerIPCPipes() {
         else richPresence.connect();
       }
 
+      if (key == "logging") {
+        logger.enabled = logging;
+      }
+
       if (typeof value == "boolean") {
         config.set(key, value ? "true" : "false");
       } else {
@@ -373,12 +430,30 @@ function registerIPCPipes() {
     return config.all();
   });
 
+  ipcMain.handle("ezpplauncher:checkUpdate", async (e) => {
+    const updateInfo = await updateAvailable();
+    if (updateInfo.update)
+      mainWindow.webContents.send("ezpplauncher:update", updateInfo.release);
+  });
+
   ipcMain.handle("ezpplauncher:exitAndUpdate", async (e) => {
     await shell.openExternal(releasesUrl);
     app.exit();
   });
 
   ipcMain.handle("ezpplauncher:launch", async (e) => {
+    try {
+      const osuWindowTitle = windowName.getWindowText("osu!.exe");
+      if (osuWindowTitle.length > 0) {
+        mainWindow.webContents.send("ezpplauncher:alert", {
+          type: "error",
+          message: "osu! is running, please exit.",
+        });
+        mainWindow.webContents.send("ezpplauncher:launchabort");
+        return;
+      }
+
+      logger.log("Preparing launch...");
       const configPatch = config.get("patch");
       patch = configPatch != undefined ? configPatch == "true" : true;
       mainWindow.webContents.send("ezpplauncher:launchstatus", {
@@ -393,6 +468,8 @@ function registerIPCPipes() {
           type: "error",
           message: "osu! path not set!",
         });
+        mainWindow.webContents.send("ezpplauncher:open-settings");
+        logger.log("osu! path is not set.");
         return;
       }
       if (!(await isValidOsuFolder(osuPath))) {
@@ -401,51 +478,42 @@ function registerIPCPipes() {
           type: "error",
           message: "invalid osu! path!",
         });
+        logger.log("osu! path is invalid.");
         return;
       }
+      if (patch) {
+        if (!(await isNet8Installed())) {
+          mainWindow.webContents.send("ezpplauncher:launchabort");
+          mainWindow.webContents.send("ezpplauncher:alert", {
+            type: "error",
+            message: ".NET 8 is not installed.",
+          });
+          //open .net 8 download in browser
+          shell.openExternal(
+            "https://dotnet.microsoft.com/en-us/download/dotnet/thank-you/runtime-desktop-8.0.4-windows-x64-installer",
+          );
+          logger.log(".NET 8 is not installed.");
+        }
+      }
       mainWindow.webContents.send("ezpplauncher:launchstatus", {
         status: "Checking for osu! updates...",
       });
       await new Promise((res) => setTimeout(res, 1000));
-    const releaseStream = await getGlobalConfig(osuPath).get("_ReleaseStream");
+      const releaseStream = await getGlobalConfig(osuPath).get(
+        "_ReleaseStream",
+      );
       const latestFiles = await getUpdateFiles(releaseStream);
-    const uiFiles = await getUIFiles(osuPath);
       const updateFiles = await getFilesThatNeedUpdate(osuPath, latestFiles);
-    if (uiFiles.length > 0) {
-      const uiDownloader = downloadUIFiles(osuPath, uiFiles);
-      let errored = false;
-      uiDownloader.eventEmitter.on("error", (data) => {
-        const filename = data.fileName;
-        errored = true;
-        mainWindow.webContents.send("ezpplauncher:alert", {
-          type: "error",
-          message:
-            `Failed to download/replace ${filename}!\nMaybe try to restart EZPPLauncher.`,
-        });
-      });
-      uiDownloader.eventEmitter.on("data", (data) => {
-        mainWindow.webContents.send("ezpplauncher:launchprogress", {
-          progress: Math.ceil(data.progress),
-        });
-        mainWindow.webContents.send("ezpplauncher:launchstatus", {
-          status: `Downloading ${data.fileName}(${formatBytes(data.loaded)}/${formatBytes(data.total)
-            })...`,
-        });
-      });
-      await uiDownloader.startDownload();
-      mainWindow.webContents.send("ezpplauncher:launchprogress", {
-        progress: -1,
-      });
-      if (errored) {
-        mainWindow.webContents.send("ezpplauncher:launchabort");
-        return;
-      }
-    }
       if (updateFiles.length > 0) {
+        logger.log("osu! updates found.");
         const updateDownloader = downloadUpdateFiles(osuPath, updateFiles);
         let errored = false;
         updateDownloader.eventEmitter.on("error", (data) => {
           const filename = data.fileName;
+          logger.error(
+            `Failed to download/replace ${filename}!`,
+            data.error,
+          );
           errored = true;
           mainWindow.webContents.send("ezpplauncher:alert", {
             type: "error",
@@ -454,6 +522,9 @@ function registerIPCPipes() {
           });
         });
         updateDownloader.eventEmitter.on("data", (data) => {
+          if (data.progress >= 100) {
+            logger.log(`Downloaded ${data.fileName} successfully.`);
+          }
           mainWindow.webContents.send("ezpplauncher:launchprogress", {
             progress: Math.ceil(data.progress),
           });
@@ -486,12 +557,17 @@ function registerIPCPipes() {
           status: "Looking for patcher updates...",
         });
         await new Promise((res) => setTimeout(res, 1000));
-      const patchFiles = await getPatcherUpdates(osuPath);
+        const patchFiles = await getEZPPLauncherUpdateFiles(osuPath);
         if (patchFiles.length > 0) {
-        const patcherDownloader = downloadPatcherUpdates(osuPath, patchFiles);
+          logger.log("EZPPLauncher updates found.");
+          const patcherDownloader = await downloadEZPPLauncherUpdateFiles(
+            osuPath,
+            patchFiles,
+          );
           let errored = false;
           patcherDownloader.eventEmitter.on("error", (data) => {
             const filename = data.fileName;
+            logger.error(`Failed to download/replace ${filename}!`, data.error);
             errored = true;
             mainWindow.webContents.send("ezpplauncher:alert", {
               type: "error",
@@ -500,12 +576,15 @@ function registerIPCPipes() {
             });
           });
           patcherDownloader.eventEmitter.on("data", (data) => {
+            if (data.progress >= 100) {
+              logger.log(`Downloaded ${data.fileName} successfully.`);
+            }
             mainWindow.webContents.send("ezpplauncher:launchprogress", {
               progress: Math.ceil(data.progress),
             });
             mainWindow.webContents.send("ezpplauncher:launchstatus", {
-            status: `Downloading ${data.fileName}(${formatBytes(data.loaded)}/${formatBytes(data.total)
-              })...`,
+              status: `Downloading ${data.fileName}(${formatBytes(data.loaded)
+                }/${formatBytes(data.total)})...`,
             });
           });
           await patcherDownloader.startDownload();
@@ -558,15 +637,27 @@ function registerIPCPipes() {
         status: "Preparing launch...",
       });
 
-    await updateOsuConfigHashes(osuPath);
-    await replaceUIFile(osuPath, false);
+      /* await updateOsuConfigHashes(osuPath); */
+      logger.log("Replacing UI files...");
+      try {
+        await replaceUIFiles(osuPath, false);
+        logger.log("UI files replaced successfully.");
+      } catch (err) {
+        logger.error("Failed to replace UI files:", err);
+        mainWindow.webContents.send("ezpplauncher:alert", {
+          type: "error",
+          message: "Failed to replace UI files. try restarting EZPPLauncher.",
+        });
+        mainWindow.webContents.send("ezpplauncher:launchabort");
+        return;
+      }
 
       const forceUpdateFiles = [
         ".require_update",
         "help.txt",
         "_pending",
       ];
-    //TODO: needs testing
+
       try {
         for (const updateFileName of forceUpdateFiles) {
           const updateFile = path.join(osuPath, updateFileName);
@@ -577,7 +668,9 @@ function registerIPCPipes() {
             });
           }
         }
-    } catch { }
+      } catch (err) {
+        logger.error("Failed to remove force update files:", err);
+      }
 
       const userConfig = getUserConfig(osuPath);
       if (richPresence.hasPresence) {
@@ -596,13 +689,18 @@ function registerIPCPipes() {
         status: "Launching osu!...",
       });
 
+      await new Promise((res) => setTimeout(res, 1000));
+
+      logger.log("Launching osu!...");
+
       const onExitHook = () => {
+        logger.log("osu! has exited.");
         mainWindow.show();
         mainWindow.focus();
         stopOsuStatus();
         richPresence.updateUser({
           username: "  ",
-        id: undefined
+          id: undefined,
         });
         richPresence.updateStatus({
           state: "Idle in Launcher...",
@@ -612,24 +710,36 @@ function registerIPCPipes() {
         mainWindow.webContents.send("ezpplauncher:launchstatus", {
           status: "Waiting for cleanup...",
         });
+        const timeStart = performance.now();
+        logger.log("Waiting for cleanup...");
 
-      setTimeout(async () => {
-        await replaceUIFile(osuPath, true);
+        const cleanup = setInterval(async () => {
+          const osuUIFile = path.join(osuPath, "osu!ui.dll");
+          const osuGameplayFile = path.join(osuPath, "osu!gameplay.dll");
+          if (isWritable(osuUIFile) && isWritable(osuGameplayFile)) {
+            logger.log(
+              `Cleanup complete, took ${((performance.now() - timeStart) / 1000).toFixed(3)
+              } seconds.`,
+            );
+            clearInterval(cleanup);
+            await replaceUIFiles(osuPath, true);
             mainWindow.webContents.send("ezpplauncher:launchabort");
             osuLoaded = false;
-      }, 5000);
+          }
+        }, 1000);
       };
       runOsuWithDevServer(osuPath, "ez-pp.farm", onExitHook);
       mainWindow.hide();
       startOsuStatus();
-
-    /* mainWindow.webContents.send("ezpplauncher:launchprogress", {
-      progress: 0,
-    });
-    mainWindow.webContents.send("ezpplauncher:launchprogress", {
-      progress: 100,
-    }); */
       return true;
+    } catch (err) {
+      logger.error("Failed to launch", err);
+      mainWindow.webContents.send("ezpplauncher:alert", {
+        type: "error",
+        message: "Failed to launch osu!. Please try again.",
+      });
+      mainWindow.webContents.send("ezpplauncher:launchabort");
+    }
   });
 }
 
@@ -685,6 +795,13 @@ function createWindow() {
       richPresence.connect();
     }
   }
+
+  logger.init();
+
+  const loggingEnabled = config.get("logging");
+  if (loggingEnabled && loggingEnabled == "true") {
+    logger.enabled = true;
+  }
   // Uncomment the following line of code when app is ready to be packaged.
   // loadURL(mainWindow);
 
@@ -705,10 +822,6 @@ function createWindow() {
   // Emitted when the window is ready to be shown
   // This helps in showing the window gracefully.
   mainWindow.once("ready-to-show", async () => {
-    const updateInfo = await updateAvailable();
-    if (updateInfo.update) {
-      mainWindow.webContents.send("ezpplauncher:update", updateInfo.release);
-    }
     mainWindow.show();
     mainWindow.focus();
   });

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ezpplauncher-next",
-  "version": "2.1.1",
+  "version": "2.1.6",
   "description": "EZPPLauncher rewritten with Svelte.",
   "private": false,
   "license": "MIT",
@@ -51,7 +51,7 @@
     "regedit-rs": "^1.0.2",
     "semver": "^7.5.4",
     "svelte-french-toast": "^1.2.0",
-    "sweetalert2": "^11.10.3",
+    "sweetalert2": "^11.10.8",
     "systeminformation": "^5.21.22"
   },
   "devDependencies": {
@@ -61,7 +61,6 @@
     "@rollup/plugin-node-resolve": "^15.2.3",
     "@rollup/plugin-terser": "^0.4.4",
     "@rollup/plugin-typescript": "^11.1.5",
-    "@sveltejs/vite-plugin-svelte": "^3.0.1",
     "@tsconfig/svelte": "^5.0.2",
     "autoprefixer": "^10.4.16",
     "concurrently": "^8.2.2",

preload.js

@@ -82,6 +82,10 @@ window.addEventListener("settings-set", async (e) => {
   await ipcRenderer.invoke("ezpplauncher:settings-set", e.detail);
 });
 
+window.addEventListener("updateCheck", async () => {
+  await ipcRenderer.invoke("ezpplauncher:checkUpdate");
+})
+
 window.addEventListener("updateExit", async () => {
   await ipcRenderer.invoke("ezpplauncher:exitAndUpdate");
 });
@@ -115,3 +119,9 @@ ipcRenderer.addListener("ezpplauncher:update", (e, args) => {
     new CustomEvent("update", { detail: args }),
   );
 });
+
+ipcRenderer.addListener("ezpplauncher:open-settings", (e, args) => {
+  window.dispatchEvent(
+    new CustomEvent("open-settings"),
+  );
+});

src/App.svelte

@@ -66,6 +66,12 @@
     window.dispatchEvent(new CustomEvent("updateExit"));
   });
 
+  window.dispatchEvent(new CustomEvent("updateCheck"));
+
+  window.addEventListener("open-settings", (e) => {
+    currentPage.set(Page.Settings);
+  });
+
   window.addEventListener("launchStatusUpdate", (e) => {
     const status = (e as CustomEvent).detail.status;
     launchStatus.set(status);

src/lib/Progressbar.svelte

@@ -26,12 +26,12 @@
     green: "bg-green-600 dark:bg-green-500",
     yellow: "bg-yellow-400",
     purple: "bg-purple-600 dark:bg-purple-500",
-    indigo: "bg-indigo-600 dark:bg-indigo-500",
+    indigo: "bg-indigo-600 dark:bg-indigo-500"
   };
 
   let _progress = tweened(0, {
     duration: tweenDuration,
-    easing,
+    easing
   });
 
   $: {
@@ -50,7 +50,11 @@
     >
     <span class="text-sm font-medium text-blue-700 dark:text-white"
       >{animate
-        ? $_progress.toFixed(precision)
+        ? isNaN($_progress)
+          ? parseInt("100").toFixed(precision)
+          : $_progress.toFixed(precision)
+        : isNaN(progress)
+          ? parseInt("100").toFixed(precision)
           : progress.toFixed(precision)}%</span
     >
   </div>
@@ -63,7 +67,13 @@
         class={twJoin(labelInsideClass, barColors[color])}
         style="width: {animate ? $_progress : progress}%"
       >
-        {animate ? $_progress.toFixed(precision) : progress.toFixed(precision)}%
+        {animate
+          ? isNaN($_progress)
+            ? parseInt("100").toFixed(precision)
+            : $_progress.toFixed(precision)
+          : isNaN(progress)
+            ? parseInt("100").toFixed(precision)
+            : progress.toFixed(precision)}%
       </div>
     {:else}
       <div

src/pages/Launch.svelte

@@ -1,11 +1,11 @@
 <script lang="ts">
-  import { Button, Checkbox } from "flowbite-svelte";
+  import { Button } from "flowbite-svelte";
   import Progressbar from "../lib/Progressbar.svelte";
   import {
     launching,
     patch,
     launchStatus,
-    launchPercentage,
+    launchPercentage
   } from "./../storage/localStore";
   let progressbarFix = true;
 

src/pages/Login.svelte

@@ -1,7 +1,6 @@
 <script lang="ts">
   import { Input, Button, Spinner, Checkbox } from "flowbite-svelte";
-  import type { User } from "../types/user";
-  import type { Error } from "../types/error";
+  import { type User } from "../types/user";
   import { currentPage, currentUser, startup } from "../storage/localStore";
   import toast from "svelte-french-toast";
   import { Page } from "../consts/pages";
@@ -43,14 +42,14 @@
             position: "bottom-center",
             className:
               "dark:!bg-gray-800 border-1 dark:!border-gray-700 dark:!text-gray-100",
-            duration: 3000,
+            duration: 3000
           });
         },
         { once: true }
       );
       window.dispatchEvent(
         new CustomEvent("login-attempt", {
-          detail: { username, password, saveCredentials },
+          detail: { username, password, saveCredentials }
         })
       );
     });
@@ -59,13 +58,13 @@
       {
         loading: "Logging in...",
         success: "Successfully logged in!",
-        error: "Invalid Username or Password!",
+        error: "Invalid Username or Password!"
       },
       {
         position: "bottom-center",
         className:
           "dark:!bg-gray-800 border-1 dark:!border-gray-700 dark:!text-gray-100",
-        duration: 3000,
+        duration: 3000
       }
     );
   };
@@ -87,7 +86,7 @@
               position: "bottom-center",
               className:
                 "dark:!bg-gray-800 border-1 dark:!border-gray-700 dark:!text-gray-100",
-              duration: 3000,
+              duration: 3000
             });
             return;
           }
@@ -104,7 +103,7 @@
             position: "bottom-center",
             className:
               "dark:!bg-gray-800 border-1 dark:!border-gray-700 dark:!text-gray-100",
-            duration: 3000,
+            duration: 3000
           });
           loading = false;
         },
@@ -117,13 +116,13 @@
       {
         loading: "Logging in...",
         success: "Successfully logged in!",
-        error: "Failed to login.",
+        error: "Failed to login."
       },
       {
         position: "bottom-center",
         className:
           "dark:!bg-gray-800 border-1 dark:!border-gray-700 dark:!text-gray-100",
-        duration: 3000,
+        duration: 3000
       }
     );
   };
@@ -135,7 +134,7 @@
       position: "bottom-center",
       className:
         "dark:!bg-gray-800 border-1 dark:!border-gray-700 dark:!text-gray-100",
-      duration: 3000,
+      duration: 3000
     });
   };
 

src/pages/Settings.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
   import { Button, ButtonGroup, Input, Toggle } from "flowbite-svelte";
   import { FileSearchSolid, FolderSolid } from "flowbite-svelte-icons";
-  import { patch, presence } from "./../storage/localStore";
+  import { patch, presence, logging } from "./../storage/localStore";
 
   let folderPath: string = "";
 
@@ -12,8 +12,10 @@
     const settingPresence = settings.find(
       (setting) => setting.key == "presence"
     );
+    const settingLogging = settings.find((setting) => setting.key == "logging");
     patch.set(settingPatch ? settingPatch.val == "true" : true);
     presence.set(settingPresence ? settingPresence.val == "true" : true);
+    logging.set(settingLogging ? settingLogging.val == "true" : false);
     folderPath = osuPath ? osuPath.val : "";
   });
   window.dispatchEvent(new CustomEvent("settings-get"));
@@ -39,19 +41,18 @@
       new CustomEvent("setting-update", { detail: { presence: $presence } })
     );
   };
+
+  const toggleLogging = () => {
+    logging.set(!$logging);
+    window.dispatchEvent(
+      new CustomEvent("setting-update", { detail: { logging: $logging } })
+    );
+  };
 </script>
 
 <main
   class="h-[265px] flex flex-col justify-start p-3 animate-fadeIn opacity-0"
 >
-  <div class="flex flex-col gap-2 p-3">
-    <Toggle class="w-fit" bind:checked={$presence} on:click={togglePresence}
-      >Discord Presence</Toggle
-    >
-    <Toggle class="w-fit" bind:checked={$patch} on:click={togglePatching}
-      >Patching</Toggle
-    >
-  </div>
   <div
     class="container flex flex-col items-center justify-center gap-5 rounded-lg p-3"
   >
@@ -77,4 +78,15 @@
       </Button>
     </ButtonGroup>
   </div>
+  <div class="flex flex-col gap-2 p-3">
+    <Toggle class="w-fit" bind:checked={$presence} on:click={togglePresence}
+      >Discord Presence</Toggle
+    >
+    <Toggle class="w-fit" bind:checked={$patch} on:click={togglePatching}
+      >Patching</Toggle
+    >
+    <Toggle class="w-fit" bind:checked={$logging} on:click={toggleLogging}
+      >Debug Logging</Toggle
+    >
+  </div>
 </main>

src/storage/localStore.ts

@@ -7,8 +7,11 @@ export const updateAvailable = writable(false);
 export const launching = writable(false);
 export const launchStatus = writable("Waiting...");
 export const launchPercentage = writable(-1);
+
+export const currentUser: Writable<undefined | User> = writable(undefined);
+export const currentPage = writable(Page.Login);
+
 export const osuPath: Writable<undefined | string> = writable(undefined);
 export const patch = writable(true);
 export const presence = writable(true);
-export const currentUser: Writable<undefined | User> = writable(undefined);
-export const currentPage = writable(Page.Login);
+export const logging = writable(false);

svelte.config.js

@@ -1,7 +1,7 @@
-const { vitePreprocess } = require("@sveltejs/vite-plugin-svelte");
+const preprocess = require("svelte-preprocess");
 
 const config = {
-  preprocess: [vitePreprocess({})],
+  preprocess: [preprocess()],
 };
 
 module.exports = config;