Simplify error handling for IPC handlers (#119)

src/ipc/handlers/safe_handle.ts

+import { ipcMain, IpcMainInvokeEvent } from "electron";
+import log from "electron-log";
+
+export function createSafeHandler(logger: log.LogFunctions) {
+  return (
+    channel: string,
+    fn: (event: IpcMainInvokeEvent, ...args: any[]) => Promise<any>,
+  ) => {
+    ipcMain.handle(
+      channel,
+      async (event: IpcMainInvokeEvent, ...args: any[]) => {
+        try {
+          return await fn(event, ...args);
+        } catch (error) {
+          logger.error(
+            `Error in ${fn.name}: args: ${JSON.stringify(args)}`,
+            error,
+          );
+          throw new Error(`[${channel}] ${error}`);
+        }
+      },
+    );
+  };
+}

src/ipc/handlers/version_handlers.ts

-import { ipcMain } from "electron";
 import { db } from "../../db";
 import { apps, messages } from "../../db/schema";
 import { desc, eq, and, gt } from "drizzle-orm";
@@ -8,15 +7,17 @@ import path from "node:path";
 import { getDyadAppPath } from "../../paths/paths";
 import git from "isomorphic-git";
 import { promises as fsPromises } from "node:fs";
-// Import our utility modules
 import { withLock } from "../utils/lock_utils";
 import { getGitAuthor } from "../utils/git_author";
 import log from "electron-log";
+import { createSafeHandler } from "./safe_handle";
 
 const logger = log.scope("version_handlers");
 
+const handle = createSafeHandler(logger);
+
 export function registerVersionHandlers() {
-  ipcMain.handle("list-versions", async (_, { appId }: { appId: number }) => {
+  handle("list-versions", async (_, { appId }: { appId: number }) => {
     const app = await db.query.apps.findFirst({
       where: eq(apps.id, appId),
     });
@@ -32,26 +33,21 @@ export function registerVersionHandlers() {
       return [];
     }
 
-    try {
-      const commits = await git.log({
-        fs,
-        dir: appPath,
-        // KEEP UP TO DATE WITH ChatHeader.tsx
-        depth: 10_000, // Limit to last 10_000 commits for performance
-      });
+    const commits = await git.log({
+      fs,
+      dir: appPath,
+      // KEEP UP TO DATE WITH ChatHeader.tsx
+      depth: 10_000, // Limit to last 10_000 commits for performance
+    });
 
-      return commits.map((commit) => ({
-        oid: commit.oid,
-        message: commit.commit.message,
-        timestamp: commit.commit.author.timestamp,
-      })) satisfies Version[];
-    } catch (error: any) {
-      logger.error(`Error listing versions for app ${appId}:`, error);
-      throw new Error(`Failed to list versions: ${error.message}`);
-    }
+    return commits.map((commit) => ({
+      oid: commit.oid,
+      message: commit.commit.message,
+      timestamp: commit.commit.author.timestamp,
+    })) satisfies Version[];
   });
 
-  ipcMain.handle(
+  handle(
     "get-current-branch",
     async (_, { appId }: { appId: number }): Promise<BranchResult> => {
       const app = await db.query.apps.findFirst({
@@ -86,7 +82,7 @@ export function registerVersionHandlers() {
     },
   );
 
-  ipcMain.handle(
+  handle(
     "revert-version",
     async (
       _,
@@ -106,117 +102,109 @@ export function registerVersionHandlers() {
 
         const appPath = getDyadAppPath(app.path);
 
-        try {
-          await git.checkout({
-            fs,
-            dir: appPath,
-            ref: "main",
-            force: true,
-          });
-          // Get status matrix comparing the target commit (previousVersionId as HEAD) with current working directory
-          const matrix = await git.statusMatrix({
-            fs,
-            dir: appPath,
-            ref: previousVersionId,
-          });
+        await git.checkout({
+          fs,
+          dir: appPath,
+          ref: "main",
+          force: true,
+        });
+        // Get status matrix comparing the target commit (previousVersionId as HEAD) with current working directory
+        const matrix = await git.statusMatrix({
+          fs,
+          dir: appPath,
+          ref: previousVersionId,
+        });
 
-          // Process each file to revert to the state in previousVersionId
-          for (const [filepath, headStatus, workdirStatus] of matrix) {
-            const fullPath = path.join(appPath, filepath);
-
-            // If file exists in HEAD (previous version)
-            if (headStatus === 1) {
-              // If file doesn't exist or has changed in working directory, restore it from the target commit
-              if (workdirStatus !== 1) {
-                const { blob } = await git.readBlob({
-                  fs,
-                  dir: appPath,
-                  oid: previousVersionId,
-                  filepath,
-                });
-                await fsPromises.mkdir(path.dirname(fullPath), {
-                  recursive: true,
-                });
-                await fsPromises.writeFile(fullPath, Buffer.from(blob));
-              }
+        // Process each file to revert to the state in previousVersionId
+        for (const [filepath, headStatus, workdirStatus] of matrix) {
+          const fullPath = path.join(appPath, filepath);
+
+          // If file exists in HEAD (previous version)
+          if (headStatus === 1) {
+            // If file doesn't exist or has changed in working directory, restore it from the target commit
+            if (workdirStatus !== 1) {
+              const { blob } = await git.readBlob({
+                fs,
+                dir: appPath,
+                oid: previousVersionId,
+                filepath,
+              });
+              await fsPromises.mkdir(path.dirname(fullPath), {
+                recursive: true,
+              });
+              await fsPromises.writeFile(fullPath, Buffer.from(blob));
             }
-            // If file doesn't exist in HEAD but exists in working directory, delete it
-            else if (headStatus === 0 && workdirStatus !== 0) {
-              if (fs.existsSync(fullPath)) {
-                await fsPromises.unlink(fullPath);
-                await git.remove({
-                  fs,
-                  dir: appPath,
-                  filepath: filepath,
-                });
-              }
+          }
+          // If file doesn't exist in HEAD but exists in working directory, delete it
+          else if (headStatus === 0 && workdirStatus !== 0) {
+            if (fs.existsSync(fullPath)) {
+              await fsPromises.unlink(fullPath);
+              await git.remove({
+                fs,
+                dir: appPath,
+                filepath: filepath,
+              });
             }
           }
+        }
 
-          // Stage all changes
-          await git.add({
-            fs,
-            dir: appPath,
-            filepath: ".",
-          });
+        // Stage all changes
+        await git.add({
+          fs,
+          dir: appPath,
+          filepath: ".",
+        });
 
-          // Create a revert commit
-          await git.commit({
-            fs,
-            dir: appPath,
-            message: `Reverted all changes back to version ${previousVersionId}`,
-            author: await getGitAuthor(),
-          });
+        // Create a revert commit
+        await git.commit({
+          fs,
+          dir: appPath,
+          message: `Reverted all changes back to version ${previousVersionId}`,
+          author: await getGitAuthor(),
+        });
 
-          // Find the chat and message associated with the commit hash
-          const messageWithCommit = await db.query.messages.findFirst({
-            where: eq(messages.commitHash, previousVersionId),
-            with: {
-              chat: true,
-            },
+        // Find the chat and message associated with the commit hash
+        const messageWithCommit = await db.query.messages.findFirst({
+          where: eq(messages.commitHash, previousVersionId),
+          with: {
+            chat: true,
+          },
+        });
+
+        // If we found a message with this commit hash, delete all subsequent messages (but keep this message)
+        if (messageWithCommit) {
+          const chatId = messageWithCommit.chatId;
+
+          // Find all messages in this chat with IDs > the one with our commit hash
+          const messagesToDelete = await db.query.messages.findMany({
+            where: and(
+              eq(messages.chatId, chatId),
+              gt(messages.id, messageWithCommit.id),
+            ),
+            orderBy: desc(messages.id),
           });
 
-          // If we found a message with this commit hash, delete all subsequent messages (but keep this message)
-          if (messageWithCommit) {
-            const chatId = messageWithCommit.chatId;
-
-            // Find all messages in this chat with IDs > the one with our commit hash
-            const messagesToDelete = await db.query.messages.findMany({
-              where: and(
-                eq(messages.chatId, chatId),
-                gt(messages.id, messageWithCommit.id),
-              ),
-              orderBy: desc(messages.id),
-            });
-
-            logger.log(
-              `Deleting ${messagesToDelete.length} messages after commit ${previousVersionId} from chat ${chatId}`,
-            );
-
-            // Delete the messages
-            if (messagesToDelete.length > 0) {
-              await db
-                .delete(messages)
-                .where(
-                  and(
-                    eq(messages.chatId, chatId),
-                    gt(messages.id, messageWithCommit.id),
-                  ),
-                );
-            }
-          }
-        } catch (error: any) {
-          logger.error(
-            `Error reverting to version ${previousVersionId} for app ${appId}:`,
-            error,
+          logger.log(
+            `Deleting ${messagesToDelete.length} messages after commit ${previousVersionId} from chat ${chatId}`,
           );
-          throw new Error(`Failed to revert version: ${error.message}`);
+
+          // Delete the messages
+          if (messagesToDelete.length > 0) {
+            await db
+              .delete(messages)
+              .where(
+                and(
+                  eq(messages.chatId, chatId),
+                  gt(messages.id, messageWithCommit.id),
+                ),
+              );
+          }
         }
       });
     },
   );
 
-  ipcMain.handle(
+  handle(
     "checkout-version",
     async (
       _,
@@ -233,21 +221,12 @@ export function registerVersionHandlers() {
 
         const appPath = getDyadAppPath(app.path);
 
-        try {
-          // Checkout the target commit
-          await git.checkout({
-            fs,
-            dir: appPath,
-            ref: versionId,
-            force: true,
-          });
-        } catch (error: any) {
-          logger.error(
-            `Error checking out version ${versionId} for app ${appId}:`,
-            error,
-          );
-          throw new Error(`Failed to checkout version: ${error.message}`);
-        }
+        await git.checkout({
+          fs,
+          dir: appPath,
+          ref: versionId,
+          force: true,
+        });
       });
     },
   );