patch: remove excess code

backend/database/src/index.ts

@@ -111,16 +111,16 @@ export default {
 				const { type, name, userId, visibility } = initSchema.parse(body)
 
 				const userSandboxes = await db
-					.select()
+				.select()
-					.from(sandbox)
+				.from(sandbox)
-					.where(eq(sandbox.userId, userId))
+				.where(eq(sandbox.userId, userId))
-					.all()
+				.all();
-
+			
-				if (userSandboxes.length >= 8) {
+			if (userSandboxes.length >= 8) {
-					return new Response("You reached the maximum # of sandboxes.", {
+				return new Response("You reached the maximum # of sandboxes.", {
-						status: 400,
+					status: 400,
-					})
+				});
-				}
+			}
 
 				const sb = await db
 					.insert(sandbox)

backend/database/src/schema.ts

@@ -31,8 +31,8 @@ export const sandbox = sqliteTable("sandbox", {
 	createdAt: integer("createdAt", { mode: "timestamp_ms" }),
 	userId: text("user_id")
 		.notNull()
-		.references(() => user.id),
+		.references(() => user.id, { onDelete: "cascade" }),
-});
+	});
 
 export type Sandbox = typeof sandbox.$inferSelect;
 

backend/server/src/index.ts

@@ -49,15 +49,11 @@ const terminals: Record<string, Terminal> = {};
 
 const dirName = "/home/user";
 
-const moveFile = async (
+const moveFile = async (filesystem: FilesystemManager, filePath: string, newFilePath: string) => {
-  filesystem: FilesystemManager,
+  const fileContents = await filesystem.readBytes(filePath)
-  filePath: string,
-  newFilePath: string
-) => {
-  const fileContents = await filesystem.readBytes(filePath);
   await filesystem.writeBytes(newFilePath, fileContents);
   await filesystem.remove(filePath);
-};
+}
 
 io.use(async (socket, next) => {
   const handshakeSchema = z.object({
@@ -113,487 +109,381 @@ io.use(async (socket, next) => {
 const lockManager = new LockManager();
 
 io.on("connection", async (socket) => {
-  try {
+  if (inactivityTimeout) clearTimeout(inactivityTimeout);
-    if (inactivityTimeout) clearTimeout(inactivityTimeout);
 
-    const data = socket.data as {
+  const data = socket.data as {
-      userId: string;
+    userId: string;
-      sandboxId: string;
+    sandboxId: string;
-      isOwner: boolean;
+    isOwner: boolean;
-    };
+  };
 
-    if (data.isOwner) {
+  if (data.isOwner) {
-      isOwnerConnected = true;
+    isOwnerConnected = true;
-      connections[data.sandboxId] = (connections[data.sandboxId] ?? 0) + 1;
+    connections[data.sandboxId] = (connections[data.sandboxId] ?? 0) + 1;
-    } else {
+  } else {
-      if (!isOwnerConnected) {
+    if (!isOwnerConnected) {
-        socket.emit("disableAccess", "The sandbox owner is not connected.");
+      socket.emit("disableAccess", "The sandbox owner is not connected.");
+      return;
+    }
+  }
+
+  await lockManager.acquireLock(data.sandboxId, async () => {
+    try {
+      if (!containers[data.sandboxId]) {
+        containers[data.sandboxId] = await Sandbox.create();
+        console.log("Created container ", data.sandboxId);
+        io.emit("previewURL", "https://" + containers[data.sandboxId].getHostname(5173));
+      }
+    } catch (error) {
+      console.error("Error creating container ", data.sandboxId, error);
+    }
+  });
+
+  // Change the owner of the project directory to user
+  const fixPermissions = async () => {
+    await containers[data.sandboxId].process.startAndWait(
+      `sudo chown -R user "${path.join(dirName, "projects", data.sandboxId)}"`
+    );
+  }
+
+  const sandboxFiles = await getSandboxFiles(data.sandboxId);
+  sandboxFiles.fileData.forEach(async (file) => {
+    const filePath = path.join(dirName, file.id);
+    await containers[data.sandboxId].filesystem.makeDir(path.dirname(filePath));
+    await containers[data.sandboxId].filesystem.write(filePath, file.data);
+  });
+  fixPermissions();
+
+  socket.emit("loaded", sandboxFiles.files);
+
+  socket.on("getFile", (fileId: string, callback) => {
+    const file = sandboxFiles.fileData.find((f) => f.id === fileId);
+    if (!file) return;
+
+    callback(file.data);
+  });
+
+  socket.on("getFolder", async (folderId: string, callback) => {
+    const files = await getFolder(folderId);
+    callback(files);
+  });
+
+  // todo: send diffs + debounce for efficiency
+  socket.on("saveFile", async (fileId: string, body: string) => {
+    try {
+      await saveFileRL.consume(data.userId, 1);
+
+      if (Buffer.byteLength(body, "utf-8") > MAX_BODY_SIZE) {
+        socket.emit(
+          "rateLimit",
+          "Rate limited: file size too large. Please reduce the file size."
+        );
         return;
       }
+
+      const file = sandboxFiles.fileData.find((f) => f.id === fileId);
+      if (!file) return;
+      file.data = body;
+
+      await containers[data.sandboxId].filesystem.write(path.join(dirName, file.id), body);
+      fixPermissions();
+      await saveFile(fileId, body);
+    } catch (e) {
+      io.emit("rateLimit", "Rate limited: file saving. Please slow down.");
+    }
+  });
+
+  socket.on("moveFile", async (fileId: string, folderId: string, callback) => {
+    const file = sandboxFiles.fileData.find((f) => f.id === fileId);
+    if (!file) return;
+
+    const parts = fileId.split("/");
+    const newFileId = folderId + "/" + parts.pop();
+
+    await moveFile(
+      containers[data.sandboxId].filesystem,
+      path.join(dirName, fileId),
+      path.join(dirName, newFileId)
+    )
+    fixPermissions();
+
+    file.id = newFileId;
+
+    await renameFile(fileId, newFileId, file.data);
+    const newFiles = await getSandboxFiles(data.sandboxId);
+
+    callback(newFiles.files);
+  });
+
+  socket.on("createFile", async (name: string, callback) => {
+    try {
+      const size: number = await getProjectSize(data.sandboxId);
+      // limit is 200mb
+      if (size > 200 * 1024 * 1024) {
+        io.emit(
+          "rateLimit",
+          "Rate limited: project size exceeded. Please delete some files."
+        );
+        callback({ success: false });
+      }
+
+      await createFileRL.consume(data.userId, 1);
+
+      const id = `projects/${data.sandboxId}/${name}`;
+
+      await containers[data.sandboxId].filesystem.write(path.join(dirName, id), "");
+      fixPermissions();
+
+      sandboxFiles.files.push({
+        id,
+        name,
+        type: "file",
+      });
+
+      sandboxFiles.fileData.push({
+        id,
+        data: "",
+      });
+
+      await createFile(id);
+
+      callback({ success: true });
+    } catch (e) {
+      io.emit("rateLimit", "Rate limited: file creation. Please slow down.");
+    }
+  });
+
+  socket.on("createFolder", async (name: string, callback) => {
+    try {
+      await createFolderRL.consume(data.userId, 1);
+
+      const id = `projects/${data.sandboxId}/${name}`;
+
+      await containers[data.sandboxId].filesystem.makeDir(path.join(dirName, id));
+
+      callback();
+    } catch (e) {
+      io.emit("rateLimit", "Rate limited: folder creation. Please slow down.");
+    }
+  });
+
+  socket.on("renameFile", async (fileId: string, newName: string) => {
+    try {
+      await renameFileRL.consume(data.userId, 1);
+
+      const file = sandboxFiles.fileData.find((f) => f.id === fileId);
+      if (!file) return;
+      file.id = newName;
+
+      const parts = fileId.split("/");
+      const newFileId =
+        parts.slice(0, parts.length - 1).join("/") + "/" + newName;
+
+
+      await moveFile(
+        containers[data.sandboxId].filesystem,
+        path.join(dirName, fileId),
+        path.join(dirName, newFileId)
+      )
+      fixPermissions();
+      await renameFile(fileId, newFileId, file.data);
+    } catch (e) {
+      io.emit("rateLimit", "Rate limited: file renaming. Please slow down.");
+      return;
+    }
+  });
+
+  socket.on("deleteFile", async (fileId: string, callback) => {
+    try {
+      await deleteFileRL.consume(data.userId, 1);
+      const file = sandboxFiles.fileData.find((f) => f.id === fileId);
+      if (!file) return;
+
+      await containers[data.sandboxId].filesystem.remove(path.join(dirName, fileId));
+      sandboxFiles.fileData = sandboxFiles.fileData.filter(
+        (f) => f.id !== fileId
+      );
+
+      await deleteFile(fileId);
+
+      const newFiles = await getSandboxFiles(data.sandboxId);
+      callback(newFiles.files);
+    } catch (e) {
+      io.emit("rateLimit", "Rate limited: file deletion. Please slow down.");
+    }
+  });
+
+  // todo
+  // socket.on("renameFolder", async (folderId: string, newName: string) => {
+  // });
+
+  socket.on("deleteFolder", async (folderId: string, callback) => {
+    const files = await getFolder(folderId);
+
+    await Promise.all(
+      files.map(async (file) => {
+        await containers[data.sandboxId].filesystem.remove(path.join(dirName, file));
+
+        sandboxFiles.fileData = sandboxFiles.fileData.filter(
+          (f) => f.id !== file
+        );
+
+        await deleteFile(file);
+      })
+    );
+
+    const newFiles = await getSandboxFiles(data.sandboxId);
+
+    callback(newFiles.files);
+  });
+
+  socket.on("createTerminal", async (id: string, callback) => {
+    if (terminals[id] || Object.keys(terminals).length >= 4) {
+      return;
     }
 
     await lockManager.acquireLock(data.sandboxId, async () => {
       try {
-        if (!containers[data.sandboxId]) {
+        terminals[id] = await containers[data.sandboxId].terminal.start({
-          containers[data.sandboxId] = await Sandbox.create();
+          onData: (data: string) => {
-          console.log("Created container ", data.sandboxId);
+            io.emit("terminalResponse", { id, data });
-          io.emit(
+          },
-            "previewURL",
+          size: { cols: 80, rows: 20 },
-            "https://" + containers[data.sandboxId].getHostname(5173)
+          onExit: () => console.log("Terminal exited", id),
-          );
-        }
-      } catch (e: any) {
-        console.error(`Error creating container ${data.sandboxId}:`, e);
-        io.emit("error", `Error: container creation. ${e.message ?? e}`);
-      }
-    });
-
-    // Change the owner of the project directory to user
-    const fixPermissions = async () => {
-      await containers[data.sandboxId].process.startAndWait(
-        `sudo chown -R user "${path.join(dirName, "projects", data.sandboxId)}"`
-      );
-    };
-
-    const sandboxFiles = await getSandboxFiles(data.sandboxId);
-    sandboxFiles.fileData.forEach(async (file) => {
-      const filePath = path.join(dirName, file.id);
-      await containers[data.sandboxId].filesystem.makeDir(
-        path.dirname(filePath)
-      );
-      await containers[data.sandboxId].filesystem.write(filePath, file.data);
-    });
-    fixPermissions();
-
-    socket.emit("loaded", sandboxFiles.files);
-
-    socket.on("getFile", (fileId: string, callback) => {
-      console.log(fileId);
-      try {
-        const file = sandboxFiles.fileData.find((f) => f.id === fileId);
-        if (!file) return;
-
-        callback(file.data);
-      } catch (e: any) {
-        console.error("Error getting file:", e);
-        io.emit("error", `Error: get file. ${e.message ?? e}`);
-      }
-    });
-
-    socket.on("getFolder", async (folderId: string, callback) => {
-      try {
-        const files = await getFolder(folderId);
-        callback(files);
-      } catch (e: any) {
-        console.error("Error getting folder:", e);
-        io.emit("error", `Error: get folder. ${e.message ?? e}`);
-      }
-    });
-
-    // todo: send diffs + debounce for efficiency
-    socket.on("saveFile", async (fileId: string, body: string) => {
-      try {
-        if (Buffer.byteLength(body, "utf-8") > MAX_BODY_SIZE) {
-          socket.emit(
-            "error",
-            "Error: file size too large. Please reduce the file size."
-          );
-          return;
-        }
-        try {
-          await saveFileRL.consume(data.userId, 1);
-          await saveFile(fileId, body);
-        } catch (e) {
-          io.emit("error", "Rate limited: file saving. Please slow down.");
-          return;
-        }
-
-        const file = sandboxFiles.fileData.find((f) => f.id === fileId);
-        if (!file) return;
-        file.data = body;
-
-        await containers[data.sandboxId].filesystem.write(
-          path.join(dirName, file.id),
-          body
-        );
-        fixPermissions();
-      } catch (e: any) {
-        console.error("Error saving file:", e);
-        io.emit("error", `Error: file saving. ${e.message ?? e}`);
-      }
-    });
-
-    socket.on(
-      "moveFile",
-      async (fileId: string, folderId: string, callback) => {
-        try {
-          const file = sandboxFiles.fileData.find((f) => f.id === fileId);
-          if (!file) return;
-
-          const parts = fileId.split("/");
-          const newFileId = folderId + "/" + parts.pop();
-
-          await moveFile(
-            containers[data.sandboxId].filesystem,
-            path.join(dirName, fileId),
-            path.join(dirName, newFileId)
-          );
-          fixPermissions();
-
-          file.id = newFileId;
-
-          await renameFile(fileId, newFileId, file.data);
-          const newFiles = await getSandboxFiles(data.sandboxId);
-          callback(newFiles.files);
-        } catch (e: any) {
-          console.error("Error moving file:", e);
-          io.emit("error", `Error: file moving. ${e.message ?? e}`);
-        }
-      }
-    );
-
-    socket.on("createFile", async (name: string, callback) => {
-      try {
-        const size: number = await getProjectSize(data.sandboxId);
-        // limit is 200mb
-        if (size > 200 * 1024 * 1024) {
-          io.emit(
-            "error",
-            "Rate limited: project size exceeded. Please delete some files."
-          );
-          callback({ success: false });
-          return;
-        }
-
-        try {
-          await createFileRL.consume(data.userId, 1);
-        } catch (e) {
-          io.emit("error", "Rate limited: file creation. Please slow down.");
-          return;
-        }
-
-        const id = `projects/${data.sandboxId}/${name}`;
-
-        await containers[data.sandboxId].filesystem.write(
-          path.join(dirName, id),
-          ""
-        );
-        fixPermissions();
-
-        sandboxFiles.files.push({
-          id,
-          name,
-          type: "file",
         });
-
+        await terminals[id].sendData(`cd "${path.join(dirName, "projects", data.sandboxId)}"\r`)
-        sandboxFiles.fileData.push({
+        await terminals[id].sendData("export PS1='user> '\rclear\r");
-          id,
+        console.log("Created terminal", id);
-          data: "",
+      } catch (error) {
-        });
+        console.error("Error creating terminal ", id, error);
-
-        await createFile(id);
-
-        callback({ success: true });
-      } catch (e: any) {
-        console.error("Error creating file:", e);
-        io.emit("error", `Error: file creation. ${e.message ?? e}`);
       }
     });
 
-    socket.on("createFolder", async (name: string, callback) => {
+    callback();
-      try {
+  });
+
+  socket.on("resizeTerminal", (dimensions: { cols: number; rows: number }) => {
+    Object.values(terminals).forEach((t) => {
+      t.resize(dimensions);
+    });
+  });
+
+  socket.on("terminalData", (id: string, data: string) => {
+    if (!terminals[id]) {
+      return;
+    }
+
+    try {
+      terminals[id].sendData(data);
+    } catch (e) {
+      console.log("Error writing to terminal", e);
+    }
+  });
+
+  socket.on("closeTerminal", async (id: string, callback) => {
+    if (!terminals[id]) {
+      return;
+    }
+
+    await terminals[id].kill();
+    delete terminals[id];
+
+    callback();
+  });
+
+  socket.on(
+    "generateCode",
+    async (
+      fileName: string,
+      code: string,
+      line: number,
+      instructions: string,
+      callback
+    ) => {
+      const fetchPromise = fetch(
+        `${process.env.DATABASE_WORKER_URL}/api/sandbox/generate`,
+        {
+          method: "POST",
+          headers: {
+            "Content-Type": "application/json",
+            Authorization: `${process.env.WORKERS_KEY}`,
+          },
+          body: JSON.stringify({
+            userId: data.userId,
+          }),
+        }
+      );
+
+      // Generate code from cloudflare workers AI
+      const generateCodePromise = fetch(
+        `${process.env.AI_WORKER_URL}/api?fileName=${fileName}&code=${code}&line=${line}&instructions=${instructions}`,
+        {
+          headers: {
+            "Content-Type": "application/json",
+            Authorization: `${process.env.CF_AI_KEY}`,
+          },
+        }
+      );
+
+      const [fetchResponse, generateCodeResponse] = await Promise.all([
+        fetchPromise,
+        generateCodePromise,
+      ]);
+
+      const json = await generateCodeResponse.json();
+
+      callback({ response: json.response, success: true });
+    }
+  );
+
+  socket.on("disconnect", async () => {
+    if (data.isOwner) {
+      connections[data.sandboxId]--;
+    }
+
+    if (data.isOwner && connections[data.sandboxId] <= 0) {
+      await Promise.all(
+        Object.entries(terminals).map(async ([key, terminal]) => {
+          await terminal.kill();
+          delete terminals[key];
+        })
+      );
+
+      await lockManager.acquireLock(data.sandboxId, async () => {
         try {
-          await createFolderRL.consume(data.userId, 1);
+          if (containers[data.sandboxId]) {
-        } catch (e) {
+            await containers[data.sandboxId].close();
-          io.emit("error", "Rate limited: folder creation. Please slow down.");
+            delete containers[data.sandboxId];
-          return;
+            console.log("Closed container", data.sandboxId);
-        }
-
-        const id = `projects/${data.sandboxId}/${name}`;
-
-        await containers[data.sandboxId].filesystem.makeDir(
-          path.join(dirName, id)
-        );
-
-        callback();
-      } catch (e: any) {
-        console.error("Error creating folder:", e);
-        io.emit("error", `Error: folder creation. ${e.message ?? e}`);
-      }
-    });
-
-    socket.on("renameFile", async (fileId: string, newName: string) => {
-      try {
-        try {
-          await renameFileRL.consume(data.userId, 1);
-        } catch (e) {
-          io.emit("error", "Rate limited: file renaming. Please slow down.");
-          return;
-        }
-
-        const file = sandboxFiles.fileData.find((f) => f.id === fileId);
-        if (!file) return;
-        file.id = newName;
-
-        const parts = fileId.split("/");
-        const newFileId =
-          parts.slice(0, parts.length - 1).join("/") + "/" + newName;
-
-        await moveFile(
-          containers[data.sandboxId].filesystem,
-          path.join(dirName, fileId),
-          path.join(dirName, newFileId)
-        );
-        fixPermissions();
-        await renameFile(fileId, newFileId, file.data);
-      } catch (e: any) {
-        console.error("Error renaming folder:", e);
-        io.emit("error", `Error: folder renaming. ${e.message ?? e}`);
-      }
-    });
-
-    socket.on("deleteFile", async (fileId: string, callback) => {
-      try {
-        try {
-          await deleteFileRL.consume(data.userId, 1);
-        } catch (e) {
-          io.emit("error", "Rate limited: file deletion. Please slow down.");
-        }
-
-        const file = sandboxFiles.fileData.find((f) => f.id === fileId);
-        if (!file) return;
-
-        await containers[data.sandboxId].filesystem.remove(
-          path.join(dirName, fileId)
-        );
-        sandboxFiles.fileData = sandboxFiles.fileData.filter(
-          (f) => f.id !== fileId
-        );
-
-        await deleteFile(fileId);
-
-        const newFiles = await getSandboxFiles(data.sandboxId);
-        callback(newFiles.files);
-      } catch (e: any) {
-        console.error("Error deleting file:", e);
-        io.emit("error", `Error: file deletion. ${e.message ?? e}`);
-      }
-    });
-
-    // todo
-    // socket.on("renameFolder", async (folderId: string, newName: string) => {
-    // });
-
-    socket.on("deleteFolder", async (folderId: string, callback) => {
-      try {
-        const files = await getFolder(folderId);
-
-        await Promise.all(
-          files.map(async (file) => {
-            await containers[data.sandboxId].filesystem.remove(
-              path.join(dirName, file)
-            );
-
-            sandboxFiles.fileData = sandboxFiles.fileData.filter(
-              (f) => f.id !== file
-            );
-
-            await deleteFile(file);
-          })
-        );
-
-        const newFiles = await getSandboxFiles(data.sandboxId);
-
-        callback(newFiles.files);
-      } catch (e: any) {
-        console.error("Error deleting folder:", e);
-        io.emit("error", `Error: folder deletion. ${e.message ?? e}`);
-      }
-    });
-
-    socket.on("createTerminal", async (id: string, callback) => {
-      try {
-        if (terminals[id] || Object.keys(terminals).length >= 4) {
-          return;
-        }
-
-        await lockManager.acquireLock(data.sandboxId, async () => {
-          try {
-            terminals[id] = await containers[data.sandboxId].terminal.start({
-              onData: (data: string) => {
-                io.emit("terminalResponse", { id, data });
-              },
-              size: { cols: 80, rows: 20 },
-              onExit: () => console.log("Terminal exited", id),
-            });
-            await terminals[id].sendData(
-              `cd "${path.join(dirName, "projects", data.sandboxId)}"\r`
-            );
-            await terminals[id].sendData("export PS1='user> '\rclear\r");
-            console.log("Created terminal", id);
-          } catch (e: any) {
-            console.error(`Error creating terminal ${id}:`, e);
-            io.emit("error", `Error: terminal creation. ${e.message ?? e}`);
           }
-        });
+        } catch (error) {
-
+          console.error("Error closing container ", data.sandboxId, error);
-        callback();
-      } catch (e: any) {
-        console.error(`Error creating terminal ${id}:`, e);
-        io.emit("error", `Error: terminal creation. ${e.message ?? e}`);
-      }
-    });
-
-    socket.on(
-      "resizeTerminal",
-      (dimensions: { cols: number; rows: number }) => {
-        try {
-          Object.values(terminals).forEach((t) => {
-            t.resize(dimensions);
-          });
-        } catch (e: any) {
-          console.error("Error resizing terminal:", e);
-          io.emit("error", `Error: terminal resizing. ${e.message ?? e}`);
         }
-      }
+      });
-    );
 
-    socket.on("terminalData", (id: string, data: string) => {
+      socket.broadcast.emit(
-      try {
+        "disableAccess",
-        if (!terminals[id]) {
+        "The sandbox owner has disconnected."
-          return;
+      );
-        }
+    }
 
-        terminals[id].sendData(data);
+    // const sockets = await io.fetchSockets();
-      } catch (e: any) {
+    // if (inactivityTimeout) {
-        console.error("Error writing to terminal:", e);
+    //   clearTimeout(inactivityTimeout);
-        io.emit("error", `Error: writing to terminal. ${e.message ?? e}`);
+    // }
-      }
+    // if (sockets.length === 0) {
-    });
+    //   console.log("STARTING TIMER");
-
+    //   inactivityTimeout = setTimeout(() => {
-    socket.on("closeTerminal", async (id: string, callback) => {
+    //     io.fetchSockets().then(async (sockets) => {
-      try {
+    //       if (sockets.length === 0) {
-        if (!terminals[id]) {
+    //         console.log("Server stopped", res);
-          return;
+    //       }
-        }
+    //     });
-
+    //   }, 20000);
-        await terminals[id].kill();
+    // } else {
-        delete terminals[id];
+    //   console.log("number of sockets", sockets.length);
-
+    // }
-        callback();
+  });
-      } catch (e: any) {
-        console.error("Error closing terminal:", e);
-        io.emit("error", `Error: closing terminal. ${e.message ?? e}`);
-      }
-    });
-
-    socket.on(
-      "generateCode",
-      async (
-        fileName: string,
-        code: string,
-        line: number,
-        instructions: string,
-        callback
-      ) => {
-        try {
-          const fetchPromise = fetch(
-            `${process.env.DATABASE_WORKER_URL}/api/sandbox/generate`,
-            {
-              method: "POST",
-              headers: {
-                "Content-Type": "application/json",
-                Authorization: `${process.env.WORKERS_KEY}`,
-              },
-              body: JSON.stringify({
-                userId: data.userId,
-              }),
-            }
-          );
-
-          // Generate code from cloudflare workers AI
-          const generateCodePromise = fetch(
-            `${process.env.AI_WORKER_URL}/api?fileName=${fileName}&code=${code}&line=${line}&instructions=${instructions}`,
-            {
-              headers: {
-                "Content-Type": "application/json",
-                Authorization: `${process.env.CF_AI_KEY}`,
-              },
-            }
-          );
-
-          const [fetchResponse, generateCodeResponse] = await Promise.all([
-            fetchPromise,
-            generateCodePromise,
-          ]);
-
-          const json = await generateCodeResponse.json();
-
-          callback({ response: json.response, success: true });
-        } catch (e: any) {
-          console.error("Error generating code:", e);
-          io.emit("error", `Error: code generation. ${e.message ?? e}`);
-        }
-      }
-    );
-
-    socket.on("disconnect", async () => {
-      try {
-        if (data.isOwner) {
-          connections[data.sandboxId]--;
-        }
-
-        if (data.isOwner && connections[data.sandboxId] <= 0) {
-          await Promise.all(
-            Object.entries(terminals).map(async ([key, terminal]) => {
-              await terminal.kill();
-              delete terminals[key];
-            })
-          );
-
-          await lockManager.acquireLock(data.sandboxId, async () => {
-            try {
-              if (containers[data.sandboxId]) {
-                await containers[data.sandboxId].close();
-                delete containers[data.sandboxId];
-                console.log("Closed container", data.sandboxId);
-              }
-            } catch (error) {
-              console.error("Error closing container ", data.sandboxId, error);
-            }
-          });
-
-          socket.broadcast.emit(
-            "disableAccess",
-            "The sandbox owner has disconnected."
-          );
-        }
-
-        // const sockets = await io.fetchSockets();
-        // if (inactivityTimeout) {
-        //   clearTimeout(inactivityTimeout);
-        // }
-        // if (sockets.length === 0) {
-        //   console.log("STARTING TIMER");
-        //   inactivityTimeout = setTimeout(() => {
-        //     io.fetchSockets().then(async (sockets) => {
-        //       if (sockets.length === 0) {
-        //         console.log("Server stopped", res);
-        //       }
-        //     });
-        //   }, 20000);
-        // } else {
-        //   console.log("number of sockets", sockets.length);
-        // }
-      } catch (e: any) {
-        console.log("Error disconnecting:", e);
-        io.emit("error", `Error: disconnecting. ${e.message ?? e}`);
-      }
-    });
-  } catch (e: any) {
-    console.error("Error connecting:", e);
-    io.emit("error", `Error: connection. ${e.message ?? e}`);
-  }
 });
 
 httpServer.listen(port, () => {

frontend/components/editor/index.tsx

@@ -46,7 +46,7 @@ export default function CodeEditor({
   // Initialize socket connection if it doesn't exist
   if (!socketRef.current) {
     socketRef.current = io(
-      `${window.location.protocol}//${window.location.hostname}:${process.env.NEXT_PUBLIC_SERVER_PORT}?userId=${userData.id}&sandboxId=${sandboxData.id}`,
+      `http://localhost:${process.env.NEXT_PUBLIC_SERVER_PORT}?userId=${userData.id}&sandboxId=${sandboxData.id}`,
       {
         timeout: 2000,
       }
@@ -104,16 +104,6 @@ export default function CodeEditor({
   const room = useRoom()
   const [provider, setProvider] = useState<TypedLiveblocksProvider>()
   const userInfo = useSelf((me) => me.info)
-  
-  // Liveblocks providers map to prevent reinitializing providers
-  type ProviderData = {
-    provider: LiveblocksProvider<never, never, never, never>;
-    yDoc: Y.Doc;
-    yText: Y.Text;
-    binding?: MonacoBinding;
-    onSync: (isSynced: boolean) => void;
-  };
-  const providersMap = useRef(new Map<string, ProviderData>());
 
   // Refs for libraries / features
   const editorContainerRef = useRef<HTMLDivElement>(null)
@@ -342,77 +332,43 @@ export default function CodeEditor({
 
     if (!editorRef || !tab || !model) return
 
-    let providerData: ProviderData;
+    const yDoc = new Y.Doc()
-  
+    const yText = yDoc.getText(tab.id)
-    // When a file is opened for the first time, create a new provider and store in providersMap.
+    const yProvider: any = new LiveblocksProvider(room, yDoc)
-    if (!providersMap.current.has(tab.id)) {
-      const yDoc = new Y.Doc();
-      const yText = yDoc.getText(tab.id);
-      const yProvider = new LiveblocksProvider(room, yDoc);
 
-      // Inserts the file content into the editor once when the tab is changed.
+    const onSync = (isSynced: boolean) => {
-      const onSync = (isSynced: boolean) => {
+      if (isSynced) {
-        if (isSynced) {
+        const text = yText.toString()
-          const text = yText.toString()
+        if (text === "") {
-          if (text === "") {
+          if (activeFileContent) {
-            if (activeFileContent) {
+            yText.insert(0, activeFileContent)
-              yText.insert(0, activeFileContent)
+          } else {
-            } else {
+            setTimeout(() => {
-              setTimeout(() => {
+              yText.insert(0, editorRef.getValue())
-                yText.insert(0, editorRef.getValue())
+            }, 0)
-              }, 0)
-            }
           }
         }
       }
-
-      yProvider.on("sync", onSync)
-
-      // Save the provider to the map.
-      providerData = { provider: yProvider, yDoc, yText, onSync };
-      providersMap.current.set(tab.id, providerData);
-
-    } else {
-      // When a tab is opened that has been open before, reuse the existing provider.
-      providerData = providersMap.current.get(tab.id)!;
     }
 
+    yProvider.on("sync", onSync)
+
+    setProvider(yProvider)
+
     const binding = new MonacoBinding(
-      providerData.yText,
+      yText,
       model,
       new Set([editorRef]),
-      providerData.provider.awareness as unknown as Awareness
+      yProvider.awareness as Awareness
-    );
+    )
-
-    providerData.binding = binding;
-  
-    setProvider(providerData.provider);
 
     return () => {
-      // Cleanup logic
+      yDoc.destroy()
-      if (binding) {
+      yProvider.destroy()
-        binding.destroy();
+      binding.destroy()
-      }
+      yProvider.off("sync", onSync)
-      if (providerData.binding) {
+    }
-        providerData.binding = undefined;
+  }, [editorRef, room, activeFileContent])
-      }
-    };
-  }, [room, activeFileContent]);
-
-    // Added this effect to clean up when the component unmounts
-    useEffect(() => {
-      return () => {
-        // Clean up all providers when the component unmounts
-        providersMap.current.forEach((data) => {
-          if (data.binding) {
-            data.binding.destroy();
-          }
-          data.provider.disconnect();
-          data.yDoc.destroy();
-        });
-        providersMap.current.clear();
-      };
-    }, []);
 
   // Connection/disconnection effect
   useEffect(() => {
@@ -435,7 +391,7 @@ export default function CodeEditor({
       setFiles(files)
     }
 
-    const onError = (message: string) => {
+    const onRateLimit = (message: string) => {
       toast.error(message)
     }
 
@@ -457,7 +413,7 @@ export default function CodeEditor({
     socketRef.current?.on("connect", onConnect)
     socketRef.current?.on("disconnect", onDisconnect)
     socketRef.current?.on("loaded", onLoadedEvent)
-    socketRef.current?.on("error", onError)
+    socketRef.current?.on("rateLimit", onRateLimit)
     socketRef.current?.on("terminalResponse", onTerminalResponse)
     socketRef.current?.on("disableAccess", onDisableAccess)
     socketRef.current?.on("previewURL", setPreviewURL)
@@ -466,7 +422,7 @@ export default function CodeEditor({
       socketRef.current?.off("connect", onConnect)
       socketRef.current?.off("disconnect", onDisconnect)
       socketRef.current?.off("loaded", onLoadedEvent)
-      socketRef.current?.off("error", onError)
+      socketRef.current?.off("rateLimit", onRateLimit)
       socketRef.current?.off("terminalResponse", onTerminalResponse)
       socketRef.current?.off("disableAccess", onDisableAccess)
       socketRef.current?.off("previewURL", setPreviewURL)