fix: socket connection

This push contains console logs at various places where the server is emitting the event and the client is receiving the event. Please remove those before merging with production.

README.md

@@ -29,7 +29,9 @@ npm run dev
 
 ### Backend
 
-The backend consists of a primary Express and Socket.io server, and 3 Cloudflare Workers microservices for the D1 database, R2 storage, and Workers AI. The D1 database also contains a [service binding](https://developers.cloudflare.com/workers/runtime-apis/bindings/service-bindings/) to the R2 storage worker.
+The backend consists of a primary Express and Socket.io server, and 3 Cloudflare Workers microservices for the D1 database, R2 storage, and Workers AI. The D1 database also contains a [service binding](https://developers.cloudflare.com/workers/runtime-apis/bindings/service-bindings/) to the R2 storage worker. Each open sandbox instantiates a secure Linux sandboxes on E2B, which is used for the terminal and live preview.
+
+You will need to make an account on [E2B](https://e2b.dev/) to get an API key.
 
 #### Socket.io server
 
@@ -181,3 +183,4 @@ It should be in the form `category(scope or module): message` in your commit mes
 - [Express](https://expressjs.com/)
 - [Socket.io](https://socket.io/)
 - [Drizzle ORM](https://orm.drizzle.team/)
+- [E2B](https://e2b.dev/)

backend/database/src/index.ts

@@ -101,7 +101,7 @@ export default {
 				return success
 			} else if (method === "PUT") {
 				const initSchema = z.object({
-					type: z.enum(["react", "node"]),
+					type: z.string(),
 					name: z.string(),
 					userId: z.string(),
 					visibility: z.enum(["public", "private"]),
@@ -110,8 +110,13 @@ export default {
 				const body = await request.json()
 				const { type, name, userId, visibility } = initSchema.parse(body)
 
-				const allSandboxes = await db.select().from(sandbox).all()
-				if (allSandboxes.length >= 8) {
+				const userSandboxes = await db
+					.select()
+					.from(sandbox)
+					.where(eq(sandbox.userId, userId))
+					.all()
+
+				if (userSandboxes.length >= 8) {
 					return new Response("You reached the maximum # of sandboxes.", {
 						status: 400,
 					})

backend/database/src/schema.ts

@@ -26,7 +26,7 @@ export const sandbox = sqliteTable("sandbox", {
 		.primaryKey()
 		.unique(),
 	name: text("name").notNull(),
-	type: text("type", { enum: ["react", "node"] }).notNull(),
+	type: text("type").notNull(),
 	visibility: text("visibility", { enum: ["public", "private"] }),
 	createdAt: integer("createdAt", { mode: "timestamp_ms" }),
 	userId: text("user_id")

backend/server/.env.example

@@ -1,7 +1,13 @@
 # Set WORKERS_KEY to be the same as KEY in /backend/storage/wrangler.toml.
 # Set DATABASE_WORKER_URL and STORAGE_WORKER_URL after deploying the workers.
+# DOKKU_HOST and DOKKU_USERNAME are used to authenticate via SSH with the Dokku server
+# DOKKU_KEY is the path to an SSH (.pem) key on the local machine
 
 PORT=4000
 WORKERS_KEY=
 DATABASE_WORKER_URL=
 STORAGE_WORKER_URL=
+E2B_API_KEY=
+DOKKU_HOST=
+DOKKU_USERNAME=
+DOKKU_KEY=

backend/server/package-lock.json

@@ -12,25 +12,28 @@
         "concurrently": "^8.2.2",
         "cors": "^2.8.5",
         "dotenv": "^16.4.5",
+        "e2b": "^0.16.1",
         "express": "^4.19.2",
-        "node-pty": "^1.0.0",
         "rate-limiter-flexible": "^5.0.3",
+        "simple-git": "^3.25.0",
         "socket.io": "^4.7.5",
+        "ssh2": "^1.15.0",
         "zod": "^3.22.4"
       },
       "devDependencies": {
         "@types/cors": "^2.8.17",
         "@types/express": "^4.17.21",
         "@types/node": "^20.12.7",
+        "@types/ssh2": "^1.15.0",
         "nodemon": "^3.1.0",
         "ts-node": "^10.9.2",
         "typescript": "^5.4.5"
       }
     },
     "node_modules/@babel/runtime": {
-      "version": "7.24.5",
-      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.24.5.tgz",
-      "integrity": "sha512-Nms86NXrsaeU9vbBJKni6gXiEXZ4CVpYVzEjDH9Sb8vmZ3UljyA1GSOJl/6LGPO8EHLuSF9H+IxNXHPX8QHJ4g==",
+      "version": "7.25.0",
+      "resolved": "https://registry.npmjs.org/@babel/runtime/-/runtime-7.25.0.tgz",
+      "integrity": "sha512-7dRy4DwXwtzBrPbZflqxnvfxLF8kdZXPkhymtDeFoFqE6ldzjQFgYTtYIFARcLEYDrqfBfYcZt1WqFxRoyC9Rw==",
       "dependencies": {
         "regenerator-runtime": "^0.14.0"
       },
@@ -60,9 +63,9 @@
       }
     },
     "node_modules/@jridgewell/sourcemap-codec": {
-      "version": "1.4.15",
-      "resolved": "https://registry.npmjs.org/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.4.15.tgz",
-      "integrity": "sha512-eF2rxCRulEKXHTRiDrDy6erMYWqNw4LPdQ8UQA4huuxaQsVeRPFl2oM8oDGxMFhJUWZf9McpLtJasDDZb/Bpeg==",
+      "version": "1.5.0",
+      "resolved": "https://registry.npmjs.org/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.5.0.tgz",
+      "integrity": "sha512-gv3ZRaISU3fjPAgNsriBRqGWQL6quFx04YMPW/zD8XMLsU32mhCCbfbO6KZFLjvYpCZ8zyDEgqsgf+PwPaM7GQ==",
       "dev": true
     },
     "node_modules/@jridgewell/trace-mapping": {
@@ -75,10 +78,44 @@
         "@jridgewell/sourcemap-codec": "^1.4.10"
       }
     },
+    "node_modules/@kwsites/file-exists": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@kwsites/file-exists/-/file-exists-1.1.1.tgz",
+      "integrity": "sha512-m9/5YGR18lIwxSFDwfE3oA7bWuq9kdau6ugN4H2rJeyhFQZcG9AgSHkQtSD15a8WvTgfz9aikZMrKPHvbpqFiw==",
+      "dependencies": {
+        "debug": "^4.1.1"
+      }
+    },
+    "node_modules/@kwsites/file-exists/node_modules/debug": {
+      "version": "4.3.6",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.6.tgz",
+      "integrity": "sha512-O/09Bd4Z1fBrU4VzkhFqVgpPzaGbw6Sm9FEkBT1A/YBXQFGuuSxa1dN2nxgxS34JmKXqYx8CZAwEVoJFImUXIg==",
+      "dependencies": {
+        "ms": "2.1.2"
+      },
+      "engines": {
+        "node": ">=6.0"
+      },
+      "peerDependenciesMeta": {
+        "supports-color": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@kwsites/file-exists/node_modules/ms": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
+      "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+    },
+    "node_modules/@kwsites/promise-deferred": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@kwsites/promise-deferred/-/promise-deferred-1.1.1.tgz",
+      "integrity": "sha512-GaHYm+c0O9MjZRu0ongGBRbinu8gVAMd2UZjji6jVmqKtZluZnptXGWhz1E8j8D2HJ3f/yMxKAUC0b+57wncIw=="
+    },
     "node_modules/@socket.io/component-emitter": {
-      "version": "3.1.1",
-      "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.1.tgz",
-      "integrity": "sha512-dzJtaDAAoXx4GCOJpbB2eG/Qj8VDpdwkLsWGzGm+0L7E8/434RyMbAHmk9ubXWVAb9nXmc44jUf8GKqVDiKezg=="
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.2.tgz",
+      "integrity": "sha512-9BCxFwvbGg/RsZK9tjXd8s4UcwR0MWeFQ1XEKIQVVvAGJyINdrqKMcTRyLoK8Rse1GjzLV9cwjWV1olXRWEXVA=="
     },
     "node_modules/@tsconfig/node10": {
       "version": "1.0.11",
@@ -149,9 +186,9 @@
       }
     },
     "node_modules/@types/express-serve-static-core": {
-      "version": "4.19.0",
-      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.19.0.tgz",
-      "integrity": "sha512-bGyep3JqPCRry1wq+O5n7oiBgGWmeIJXPjXXCo8EK0u8duZGSYar7cGqd3ML2JUsLGeB7fmc06KYo9fLGWqPvQ==",
+      "version": "4.19.5",
+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.19.5.tgz",
+      "integrity": "sha512-y6W03tvrACO72aijJ5uF02FRq5cgDR9lUxddQ8vyF+GvmjJQqbzDcJngEjURc+ZsG31VI3hODNZJ2URj86pzmg==",
       "dev": true,
       "dependencies": {
         "@types/node": "*",
@@ -173,9 +210,9 @@
       "dev": true
     },
     "node_modules/@types/node": {
-      "version": "20.12.7",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.12.7.tgz",
-      "integrity": "sha512-wq0cICSkRLVaf3UGLMGItu/PtdY7oaXaI/RVU+xliKVOtRna3PRY57ZDfztpDL0n11vfymMUnXv8QwYCO7L1wg==",
+      "version": "20.14.15",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.14.15.tgz",
+      "integrity": "sha512-Fz1xDMCF/B00/tYSVMlmK7hVeLh7jE5f3B7X1/hmV0MJBwE27KlS7EvD/Yp+z1lm8mVhwV5w+n8jOZG8AfTlKw==",
       "dependencies": {
         "undici-types": "~5.26.4"
       }
@@ -213,11 +250,23 @@
         "@types/send": "*"
       }
     },
-    "node_modules/abbrev": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/abbrev/-/abbrev-1.1.1.tgz",
-      "integrity": "sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==",
-      "dev": true
+    "node_modules/@types/ssh2": {
+      "version": "1.15.1",
+      "resolved": "https://registry.npmjs.org/@types/ssh2/-/ssh2-1.15.1.tgz",
+      "integrity": "sha512-ZIbEqKAsi5gj35y4P4vkJYly642wIbY6PqoN0xiyQGshKUGXR9WQjF/iF9mXBQ8uBKy3ezfsCkcoHKhd0BzuDA==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "^18.11.18"
+      }
+    },
+    "node_modules/@types/ssh2/node_modules/@types/node": {
+      "version": "18.19.44",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-18.19.44.tgz",
+      "integrity": "sha512-ZsbGerYg72WMXUIE9fYxtvfzLEuq6q8mKERdWFnqTmOvudMxnz+CBNRoOwJ2kNpFOncrKjT1hZwxjlFgQ9qvQA==",
+      "dev": true,
+      "dependencies": {
+        "undici-types": "~5.26.4"
+      }
     },
     "node_modules/accepts": {
       "version": "1.3.8",
@@ -232,9 +281,9 @@
       }
     },
     "node_modules/acorn": {
-      "version": "8.11.3",
-      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.11.3.tgz",
-      "integrity": "sha512-Y9rRfJG5jcKOE0CLisYbojUjIrIEE7AGMzA/Sm4BslANhbS+cDMpgBdcPT91oJ7OuJ9hYJBx59RjbhxVnrF8Xg==",
+      "version": "8.12.1",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.12.1.tgz",
+      "integrity": "sha512-tcpGyI9zbizT9JbV6oYE477V6mTlXvvi0T0G3SNIYE2apm/G5huBa1+K89VGeovbg+jycCrfhl3ADxErOuO6Jg==",
       "dev": true,
       "bin": {
         "acorn": "bin/acorn"
@@ -244,10 +293,13 @@
       }
     },
     "node_modules/acorn-walk": {
-      "version": "8.3.2",
-      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.3.2.tgz",
-      "integrity": "sha512-cjkyv4OtNCIeqhHrfS81QWXoCBPExR/J62oyEqepVw8WaQeSqpW2uhuLPh1m9eWhDuOo/jUXVTlifvesOWp/4A==",
+      "version": "8.3.3",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.3.3.tgz",
+      "integrity": "sha512-MxXdReSRhGO7VlFe1bRG/oI7/mdLV9B9JJT0N8vZOhF7gFRR5l3M8W9G8JxmKV+JC5mGqJ0QvqfSOLsCPa4nUw==",
       "dev": true,
+      "dependencies": {
+        "acorn": "^8.11.0"
+      },
       "engines": {
         "node": ">=0.4.0"
       }
@@ -298,6 +350,14 @@
       "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
       "integrity": "sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg=="
     },
+    "node_modules/asn1": {
+      "version": "0.2.6",
+      "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.6.tgz",
+      "integrity": "sha512-ix/FxPn0MDjeyJ7i/yoHGFt/EX6LyNbxSEhPPXODPL+KB0VPk86UYfL0lMdy+KCnv+fmvIzySwaK5COwqVbWTQ==",
+      "dependencies": {
+        "safer-buffer": "~2.1.0"
+      }
+    },
     "node_modules/balanced-match": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.2.tgz",
@@ -312,6 +372,14 @@
         "node": "^4.5.0 || >= 5.9"
       }
     },
+    "node_modules/bcrypt-pbkdf": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/bcrypt-pbkdf/-/bcrypt-pbkdf-1.0.2.tgz",
+      "integrity": "sha512-qeFIXtP4MSoi6NLqO12WfqARWWuCKi2Rn/9hJLEmtB5yTNr9DqFWkJRCf2qShWzPeAMRnOgCrq0sg/KLv5ES9w==",
+      "dependencies": {
+        "tweetnacl": "^0.14.3"
+      }
+    },
     "node_modules/binary-extensions": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/binary-extensions/-/binary-extensions-2.3.0.tgz",
@@ -358,17 +426,39 @@
       }
     },
     "node_modules/braces": {
-      "version": "3.0.2",
-      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.2.tgz",
-      "integrity": "sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==",
+      "version": "3.0.3",
+      "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz",
+      "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==",
       "dev": true,
       "dependencies": {
-        "fill-range": "^7.0.1"
+        "fill-range": "^7.1.1"
       },
       "engines": {
         "node": ">=8"
       }
     },
+    "node_modules/bufferutil": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/bufferutil/-/bufferutil-4.0.8.tgz",
+      "integrity": "sha512-4T53u4PdgsXqKaIctwF8ifXlRTTmEPJ8iEPWFdGZvcf7sbwYo6FKFEX9eNNAnzFZ7EzJAQ3CJeOtCRA4rDp7Pw==",
+      "hasInstallScript": true,
+      "optional": true,
+      "dependencies": {
+        "node-gyp-build": "^4.3.0"
+      },
+      "engines": {
+        "node": ">=6.14.2"
+      }
+    },
+    "node_modules/buildcheck": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/buildcheck/-/buildcheck-0.0.6.tgz",
+      "integrity": "sha512-8f9ZJCUXyT1M35Jx7MkBgmBMo3oHTTBIPLiY9xyL0pl3T5RwcPEY8cUHr5LBNfu/fk6c2T4DJZuVM/8ZZT2D2A==",
+      "optional": true,
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
     "node_modules/bytes": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
@@ -410,14 +500,6 @@
         "url": "https://github.com/chalk/chalk?sponsor=1"
       }
     },
-    "node_modules/chalk/node_modules/has-flag": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
-      "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/chalk/node_modules/supports-color": {
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
@@ -514,28 +596,6 @@
         "url": "https://github.com/open-cli-tools/concurrently?sponsor=1"
       }
     },
-    "node_modules/concurrently/node_modules/has-flag": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
-      "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/concurrently/node_modules/supports-color": {
-      "version": "8.1.1",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-8.1.1.tgz",
-      "integrity": "sha512-MpUEN2OodtUzxvKQl72cUF7RQ5EiHsGvSsVG0ia9c5RbWGL2CI4C7EpPS8UTBIplnlzZiNuV56w+FuNxy3ty2Q==",
-      "dependencies": {
-        "has-flag": "^4.0.0"
-      },
-      "engines": {
-        "node": ">=10"
-      },
-      "funding": {
-        "url": "https://github.com/chalk/supports-color?sponsor=1"
-      }
-    },
     "node_modules/content-disposition": {
       "version": "0.5.4",
       "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.4.tgz",
@@ -580,6 +640,20 @@
         "node": ">= 0.10"
       }
     },
+    "node_modules/cpu-features": {
+      "version": "0.0.10",
+      "resolved": "https://registry.npmjs.org/cpu-features/-/cpu-features-0.0.10.tgz",
+      "integrity": "sha512-9IkYqtX3YHPCzoVg1Py+o9057a3i0fp7S530UWokCSaFVTc7CwXPRiOjRjBQQ18ZCNafx78YfnG+HALxtVmOGA==",
+      "hasInstallScript": true,
+      "optional": true,
+      "dependencies": {
+        "buildcheck": "~0.0.6",
+        "nan": "^2.19.0"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
     "node_modules/create-require": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/create-require/-/create-require-1.1.1.tgz",
@@ -662,6 +736,26 @@
         "url": "https://dotenvx.com"
       }
     },
+    "node_modules/e2b": {
+      "version": "0.16.2",
+      "resolved": "https://registry.npmjs.org/e2b/-/e2b-0.16.2.tgz",
+      "integrity": "sha512-xKmVK4ipgVQPJ/uyyrfH9LnaawERRWt8U2UZhdhGfzdL/QU/OpBjuhoIbFCv1Uy6qXV4nIiJ6Nw4MBC4HmXf1g==",
+      "dependencies": {
+        "isomorphic-ws": "^5.0.0",
+        "normalize-path": "^3.0.0",
+        "openapi-typescript-fetch": "^1.1.3",
+        "path-browserify": "^1.0.1",
+        "platform": "^1.3.6",
+        "ws": "^8.15.1"
+      },
+      "engines": {
+        "node": ">=18"
+      },
+      "optionalDependencies": {
+        "bufferutil": "^4.0.8",
+        "utf-8-validate": "^6.0.3"
+      }
+    },
     "node_modules/ee-first": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
@@ -681,9 +775,9 @@
       }
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     "node_modules/engine.io": {
-      "version": "6.5.4",
-      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.5.4.tgz",
-      "integrity": "sha512-KdVSDKhVKyOi+r5uEabrDLZw2qXStVvCsEB/LN3mw4WFi6Gx50jTyuxYVCwAAC0U46FdnzP/ScKRBTXb/NiEOg==",
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+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/socket.io-parser": {
       "version": "4.2.4",
       "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.4.tgz",
@@ -1613,9 +1804,9 @@
       }
     },
     "node_modules/socket.io-parser/node_modules/debug": {
-      "version": "4.3.4",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
-      "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
+      "version": "4.3.6",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.6.tgz",
+      "integrity": "sha512-O/09Bd4Z1fBrU4VzkhFqVgpPzaGbw6Sm9FEkBT1A/YBXQFGuuSxa1dN2nxgxS34JmKXqYx8CZAwEVoJFImUXIg==",
       "dependencies": {
         "ms": "2.1.2"
       },
@@ -1634,9 +1825,9 @@
       "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
     },
     "node_modules/socket.io/node_modules/debug": {
-      "version": "4.3.4",
-      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz",
-      "integrity": "sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==",
+      "version": "4.3.6",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-4.3.6.tgz",
+      "integrity": "sha512-O/09Bd4Z1fBrU4VzkhFqVgpPzaGbw6Sm9FEkBT1A/YBXQFGuuSxa1dN2nxgxS34JmKXqYx8CZAwEVoJFImUXIg==",
       "dependencies": {
         "ms": "2.1.2"
       },
@@ -1659,6 +1850,23 @@
       "resolved": "https://registry.npmjs.org/spawn-command/-/spawn-command-0.0.2.tgz",
       "integrity": "sha512-zC8zGoGkmc8J9ndvml8Xksr1Amk9qBujgbF0JAIWO7kXr43w0h/0GJNM/Vustixu+YE8N/MTrQ7N31FvHUACxQ=="
     },
+    "node_modules/ssh2": {
+      "version": "1.15.0",
+      "resolved": "https://registry.npmjs.org/ssh2/-/ssh2-1.15.0.tgz",
+      "integrity": "sha512-C0PHgX4h6lBxYx7hcXwu3QWdh4tg6tZZsTfXcdvc5caW/EMxaB4H9dWsl7qk+F7LAW762hp8VbXOX7x4xUYvEw==",
+      "hasInstallScript": true,
+      "dependencies": {
+        "asn1": "^0.2.6",
+        "bcrypt-pbkdf": "^1.0.2"
+      },
+      "engines": {
+        "node": ">=10.16.0"
+      },
+      "optionalDependencies": {
+        "cpu-features": "~0.0.9",
+        "nan": "^2.18.0"
+      }
+    },
     "node_modules/statuses": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/statuses/-/statuses-2.0.1.tgz",
@@ -1692,15 +1900,17 @@
       }
     },
     "node_modules/supports-color": {
-      "version": "5.5.0",
-      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
-      "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
-      "dev": true,
+      "version": "8.1.1",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-8.1.1.tgz",
+      "integrity": "sha512-MpUEN2OodtUzxvKQl72cUF7RQ5EiHsGvSsVG0ia9c5RbWGL2CI4C7EpPS8UTBIplnlzZiNuV56w+FuNxy3ty2Q==",
       "dependencies": {
-        "has-flag": "^3.0.0"
+        "has-flag": "^4.0.0"
       },
       "engines": {
-        "node": ">=4"
+        "node": ">=10"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/supports-color?sponsor=1"
       }
     },
     "node_modules/to-regex-range": {
@@ -1724,13 +1934,10 @@
       }
     },
     "node_modules/touch": {
-      "version": "3.1.0",
-      "resolved": "https://registry.npmjs.org/touch/-/touch-3.1.0.tgz",
-      "integrity": "sha512-WBx8Uy5TLtOSRtIq+M03/sKDrXCLHxwDcquSP2c43Le03/9serjQBIztjRz6FkJez9D/hleyAXTBGLwwZUw9lA==",
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/touch/-/touch-3.1.1.tgz",
+      "integrity": "sha512-r0eojU4bI8MnHr8c5bNo7lJDdI2qXlWWJk6a9EAFG7vbhTjElYhBVS3/miuE0uOuoLdb8Mc/rVfsmm6eo5o9GA==",
       "dev": true,
-      "dependencies": {
-        "nopt": "~1.0.10"
-      },
       "bin": {
         "nodetouch": "bin/nodetouch.js"
       }
@@ -1787,9 +1994,14 @@
       }
     },
     "node_modules/tslib": {
-      "version": "2.6.2",
-      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
-      "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q=="
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.3.tgz",
+      "integrity": "sha512-xNvxJEOUiWPGhUuUdQgAJPKOOJfGnIyKySOc09XkKsgdUV/3E2zvwZYdejjmRgPCgcym1juLH3226yA7sEFJKQ=="
+    },
+    "node_modules/tweetnacl": {
+      "version": "0.14.5",
+      "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
+      "integrity": "sha512-KXXFFdAbFXY4geFIwoyNK+f5Z1b7swfXABfL7HXCmoIWMKU3dmS26672A4EeQtDzLKy7SXmfBu51JolvEKwtGA=="
     },
     "node_modules/type-is": {
       "version": "1.6.18",
@@ -1804,9 +2016,9 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.4.5",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.4.5.tgz",
-      "integrity": "sha512-vcI4UpRgg81oIRUFwR0WSIHKt11nJ7SAVlYNIu+QpqeyXP+gpQJy/Z4+F0aGxSE4MqwjyXvW/TzgkLAx2AGHwQ==",
+      "version": "5.5.4",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.5.4.tgz",
+      "integrity": "sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==",
       "dev": true,
       "bin": {
         "tsc": "bin/tsc",
@@ -1835,6 +2047,19 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/utf-8-validate": {
+      "version": "6.0.4",
+      "resolved": "https://registry.npmjs.org/utf-8-validate/-/utf-8-validate-6.0.4.tgz",
+      "integrity": "sha512-xu9GQDeFp+eZ6LnCywXN/zBancWvOpUMzgjLPSjy4BRHSmTelvn2E0DG0o1sTiw5hkCKBHo8rwSKncfRfv2EEQ==",
+      "hasInstallScript": true,
+      "optional": true,
+      "dependencies": {
+        "node-gyp-build": "^4.3.0"
+      },
+      "engines": {
+        "node": ">=6.14.2"
+      }
+    },
     "node_modules/utils-merge": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
@@ -1874,15 +2099,15 @@
       }
     },
     "node_modules/ws": {
-      "version": "8.11.0",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
-      "integrity": "sha512-HPG3wQd9sNQoT9xHyNCXoDUa+Xw/VevmY9FoHyQ+g+rrMn4j6FB4np7Z0OhdTgjx6MgQLK7jwSy1YecU1+4Asg==",
+      "version": "8.18.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.18.0.tgz",
+      "integrity": "sha512-8VbfWfHLbbwu3+N6OKsOMpBdT4kXPDDB9cJk2bJ6mh9ucxdlnNvH1e+roYkKmN9Nxw2yjz7VzeO9oOz2zJ04Pw==",
       "engines": {
         "node": ">=10.0.0"
       },
       "peerDependencies": {
         "bufferutil": "^4.0.1",
-        "utf-8-validate": "^5.0.2"
+        "utf-8-validate": ">=5.0.2"
       },
       "peerDependenciesMeta": {
         "bufferutil": {
@@ -1901,12 +2126,6 @@
         "node": ">=10"
       }
     },
-    "node_modules/yallist": {
-      "version": "4.0.0",
-      "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz",
-      "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==",
-      "dev": true
-    },
     "node_modules/yargs": {
       "version": "17.7.2",
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-17.7.2.tgz",
@@ -1942,9 +2161,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.22.4",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.22.4.tgz",
-      "integrity": "sha512-iC+8Io04lddc+mVqQ9AZ7OQ2MrUKGN+oIQyq1vemgt46jwCwLfhq7/pwnBnNXXXZb8VTVLKwp9EDkx+ryxIWmg==",
+      "version": "3.23.8",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-3.23.8.tgz",
+      "integrity": "sha512-XBx9AXhXktjUqnepgTiE5flcKIYWi/rme0Eaj+5Y0lftuGBq+jyRu/md4WnuxqgP1ubdpNCsYEYPxrzVHD8d6g==",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }

backend/server/package.json

@@ -14,16 +14,19 @@
     "concurrently": "^8.2.2",
     "cors": "^2.8.5",
     "dotenv": "^16.4.5",
+    "e2b": "^0.16.1",
     "express": "^4.19.2",
-    "node-pty": "^1.0.0",
     "rate-limiter-flexible": "^5.0.3",
+    "simple-git": "^3.25.0",
     "socket.io": "^4.7.5",
+    "ssh2": "^1.15.0",
     "zod": "^3.22.4"
   },
   "devDependencies": {
     "@types/cors": "^2.8.17",
     "@types/express": "^4.17.21",
     "@types/node": "^20.12.7",
+    "@types/ssh2": "^1.15.0",
     "nodemon": "^3.1.0",
     "ts-node": "^10.9.2",
     "typescript": "^5.4.5"

backend/server/src/DokkuClient.ts

@@ -0,0 +1,37 @@
+import { SSHSocketClient, SSHConfig } from "./SSHSocketClient"
+
+export interface DokkuResponse {
+  ok: boolean;
+  output: string;
+}
+
+export class DokkuClient extends SSHSocketClient {
+
+  constructor(config: SSHConfig) {
+    super(
+      config,
+      "/var/run/dokku-daemon/dokku-daemon.sock"
+    )
+  }
+
+  async sendCommand(command: string): Promise<DokkuResponse> {
+    try {
+      const response = await this.sendData(command);
+
+      if (typeof response !== "string") {
+        throw new Error("Received data is not a string");
+      }
+
+      return JSON.parse(response);
+    } catch (error: any) {
+      throw new Error(`Failed to send command: ${error.message}`);
+    }
+  }
+
+  async listApps(): Promise<string[]> {
+    const response = await this.sendCommand("apps:list");
+    return response.output.split("\n").slice(1); // Split by newline and ignore the first line (header)
+  }
+}
+
+export { SSHConfig };

backend/server/src/SSHSocketClient.ts

@@ -0,0 +1,90 @@
+import { Client } from "ssh2";
+
+export interface SSHConfig {
+  host: string;
+  port?: number;
+  username: string;
+  privateKey: Buffer;
+}
+
+export class SSHSocketClient {
+    private conn: Client;
+    private config: SSHConfig;
+    private socketPath: string;
+    private isConnected: boolean = false;
+  
+    constructor(config: SSHConfig, socketPath: string) {
+      this.conn = new Client();
+      this.config = { ...config, port: 22};
+      this.socketPath = socketPath;
+  
+      this.setupTerminationHandlers();
+    }
+  
+    private setupTerminationHandlers() {
+      process.on("SIGINT", this.closeConnection.bind(this));
+      process.on("SIGTERM", this.closeConnection.bind(this));
+    }
+  
+    private closeConnection() {
+      console.log("Closing SSH connection...");
+      this.conn.end();
+      this.isConnected = false;
+      process.exit(0);
+    }
+  
+    connect(): Promise<void> {
+      return new Promise((resolve, reject) => {
+        this.conn
+          .on("ready", () => {
+            console.log("SSH connection established");
+            this.isConnected = true;
+            resolve();
+          })
+          .on("error", (err) => {
+            console.error("SSH connection error:", err);
+            this.isConnected = false;
+            reject(err);
+          })
+          .on("close", () => {
+            console.log("SSH connection closed");
+            this.isConnected = false;
+          })
+          .connect(this.config);
+      });
+    }
+  
+    sendData(data: string): Promise<string> {
+      return new Promise((resolve, reject) => {
+        if (!this.isConnected) {
+          reject(new Error("SSH connection is not established"));
+          return;
+        }
+  
+        this.conn.exec(
+          `echo "${data}" | nc -U ${this.socketPath}`,
+          (err, stream) => {
+            if (err) {
+              reject(err);
+              return;
+            }
+  
+            stream
+              .on("close", (code: number, signal: string) => {
+                reject(
+                  new Error(
+                    `Stream closed with code ${code} and signal ${signal}`
+                  )
+                );
+              })
+              .on("data", (data: Buffer) => {
+                resolve(data.toString());
+              })
+              .stderr.on("data", (data: Buffer) => {
+                reject(new Error(data.toString()));
+              });
+          }
+        );
+      });
+    }
+  }

backend/server/src/SecureGitClient.ts

@@ -0,0 +1,82 @@
+import simpleGit, { SimpleGit } from "simple-git";
+import path from "path";
+import fs from "fs";
+import os from "os";
+
+export type FileData = {
+  id: string;
+  data: string;
+};
+
+export class SecureGitClient {
+  private gitUrl: string;
+  private sshKeyPath: string;
+
+  constructor(gitUrl: string, sshKeyPath: string) {
+    this.gitUrl = gitUrl;
+    this.sshKeyPath = sshKeyPath;
+  }
+
+  async pushFiles(fileData: FileData[], repository: string): Promise<void> {
+    let tempDir: string | undefined;
+
+    try {
+      // Create a temporary directory
+      tempDir = fs.mkdtempSync(path.join(os.tmpdir(), 'git-push-'));
+      console.log(`Temporary directory created: ${tempDir}`);
+
+      // Write files to the temporary directory
+      console.log(`Writing ${fileData.length} files.`);
+      for (const { id, data } of fileData) {
+        const filePath = path.join(tempDir, id);
+        const dirPath = path.dirname(filePath);
+      
+        if (!fs.existsSync(dirPath)) {
+          fs.mkdirSync(dirPath, { recursive: true });
+        }
+        fs.writeFileSync(filePath, data);
+      }
+
+      // Initialize the simple-git instance with the temporary directory and custom SSH command
+      const git: SimpleGit = simpleGit(tempDir, {
+        config: [
+          'core.sshCommand=ssh -i ' + this.sshKeyPath + ' -o IdentitiesOnly=yes'
+        ]
+      }).outputHandler((_command, stdout, stderr) => {
+        stdout.pipe(process.stdout);
+        stderr.pipe(process.stderr);
+     });;
+
+      // Initialize a new Git repository
+      await git.init();
+
+      // Add remote repository
+      await git.addRemote("origin", `${this.gitUrl}:${repository}`);
+
+      // Add files to the repository
+      for (const {id, data} of fileData) {
+        await git.add(id);
+      }
+
+      // Commit the changes
+      await git.commit("Add files.");
+
+      // Push the changes to the remote repository
+      await git.push("origin", "master", {'--force': null});
+
+      console.log("Files successfully pushed to the repository");
+
+      if (tempDir) {
+        fs.rmSync(tempDir, { recursive: true, force: true });
+        console.log(`Temporary directory removed: ${tempDir}`);
+      }
+    } catch (error) {
+      if (tempDir) {
+        fs.rmSync(tempDir, { recursive: true, force: true });
+        console.log(`Temporary directory removed: ${tempDir}`);
+      }
+      console.error("Error pushing files to the repository:", error);
+      throw error;
+    }
+  }
+}

backend/server/src/fileoperations.ts

@@ -0,0 +1,177 @@
+import * as dotenv from "dotenv";
+import {
+  R2FileBody,
+  R2Files,
+  Sandbox,
+  TFile,
+  TFileData,
+  TFolder,
+} from "./types";
+
+dotenv.config();
+
+export const getSandboxFiles = async (id: string) => {
+  const res = await fetch(
+    `${process.env.STORAGE_WORKER_URL}/api?sandboxId=${id}`,
+    {
+      headers: {
+        Authorization: `${process.env.WORKERS_KEY}`,
+      },
+    }
+  );
+  const data: R2Files = await res.json();
+
+  const paths = data.objects.map((obj) => obj.key);
+  const processedFiles = await processFiles(paths, id);
+  return processedFiles;
+};
+
+export const getFolder = async (folderId: string) => {
+  const res = await fetch(
+    `${process.env.STORAGE_WORKER_URL}/api?folderId=${folderId}`,
+    {
+      headers: {
+        Authorization: `${process.env.WORKERS_KEY}`,
+      },
+    }
+  );
+  const data: R2Files = await res.json();
+
+  return data.objects.map((obj) => obj.key);
+};
+
+const processFiles = async (paths: string[], id: string) => {
+  const root: TFolder = { id: "/", type: "folder", name: "/", children: [] };
+  const fileData: TFileData[] = [];
+
+  paths.forEach((path) => {
+    const allParts = path.split("/");
+    if (allParts[1] !== id) {
+      return;
+    }
+
+    const parts = allParts.slice(2);
+    let current: TFolder = root;
+
+    for (let i = 0; i < parts.length; i++) {
+      const part = parts[i];
+      const isFile = i === parts.length - 1 && part.length;
+      const existing = current.children.find((child) => child.name === part);
+
+      if (existing) {
+        if (!isFile) {
+          current = existing as TFolder;
+        }
+      } else {
+        if (isFile) {
+          const file: TFile = { id: path, type: "file", name: part };
+          current.children.push(file);
+          fileData.push({ id: path, data: "" });
+        } else {
+          const folder: TFolder = {
+            // id: path, // todo: wrong id. for example, folder "src" ID is: projects/a7vgttfqbgy403ratp7du3ln/src/App.css
+            id: `projects/${id}/${parts.slice(0, i + 1).join("/")}`,
+            type: "folder",
+            name: part,
+            children: [],
+          };
+          current.children.push(folder);
+          current = folder;
+        }
+      }
+    }
+  });
+
+  await Promise.all(
+    fileData.map(async (file) => {
+      const data = await fetchFileContent(file.id);
+      file.data = data;
+    })
+  );
+
+  return {
+    files: root.children,
+    fileData,
+  };
+};
+
+const fetchFileContent = async (fileId: string): Promise<string> => {
+  try {
+    const fileRes = await fetch(
+      `${process.env.STORAGE_WORKER_URL}/api?fileId=${fileId}`,
+      {
+        headers: {
+          Authorization: `${process.env.WORKERS_KEY}`,
+        },
+      }
+    );
+    return await fileRes.text();
+  } catch (error) {
+    console.error("ERROR fetching file:", error);
+    return "";
+  }
+};
+
+export const createFile = async (fileId: string) => {
+  const res = await fetch(`${process.env.STORAGE_WORKER_URL}/api`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: `${process.env.WORKERS_KEY}`,
+    },
+    body: JSON.stringify({ fileId }),
+  });
+  return res.ok;
+};
+
+export const renameFile = async (
+  fileId: string,
+  newFileId: string,
+  data: string
+) => {
+  const res = await fetch(`${process.env.STORAGE_WORKER_URL}/api/rename`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: `${process.env.WORKERS_KEY}`,
+    },
+    body: JSON.stringify({ fileId, newFileId, data }),
+  });
+  return res.ok;
+};
+
+export const saveFile = async (fileId: string, data: string) => {
+  const res = await fetch(`${process.env.STORAGE_WORKER_URL}/api/save`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: `${process.env.WORKERS_KEY}`,
+    },
+    body: JSON.stringify({ fileId, data }),
+  });
+  return res.ok;
+};
+
+export const deleteFile = async (fileId: string) => {
+  const res = await fetch(`${process.env.STORAGE_WORKER_URL}/api`, {
+    method: "DELETE",
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: `${process.env.WORKERS_KEY}`,
+    },
+    body: JSON.stringify({ fileId }),
+  });
+  return res.ok;
+};
+
+export const getProjectSize = async (id: string) => {
+  const res = await fetch(
+    `${process.env.STORAGE_WORKER_URL}/api/size?sandboxId=${id}`,
+    {
+      headers: {
+        Authorization: `${process.env.WORKERS_KEY}`,
+      },
+    }
+  );
+  return (await res.json()).size;
+};

backend/server/src/index.ts

@@ -1,11 +1,12 @@
-import fs from "fs";
-import os from "os";
 import path from "path";
 import cors from "cors";
 import express, { Express } from "express";
 import dotenv from "dotenv";
 import { createServer } from "http";
 import { Server } from "socket.io";
+import { DokkuClient } from "./DokkuClient";
+import { SecureGitClient, FileData } from "./SecureGitClient";
+import fs from "fs";
 
 import { z } from "zod";
 import { User } from "./types";
@@ -17,8 +18,9 @@ import {
   getSandboxFiles,
   renameFile,
   saveFile,
-} from "./utils";
-import { IDisposable, IPty, spawn } from "node-pty";
+} from "./fileoperations";
+import { LockManager } from "./utils";
+import { Sandbox, Terminal, FilesystemManager } from "e2b";
 import {
   MAX_BODY_SIZE,
   createFileRL,
@@ -43,11 +45,21 @@ const io = new Server(httpServer, {
 let inactivityTimeout: NodeJS.Timeout | null = null;
 let isOwnerConnected = false;
 
-const terminals: {
-  [id: string]: { terminal: IPty; onData: IDisposable; onExit: IDisposable };
-} = {};
+const containers: Record<string, Sandbox> = {};
+const connections: Record<string, number> = {};
+const terminals: Record<string, Terminal> = {};
 
-const dirName = path.join(__dirname, "..");
+const dirName = "/home/user";
+
+const moveFile = async (
+  filesystem: FilesystemManager,
+  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({
@@ -100,364 +112,578 @@ io.use(async (socket, next) => {
   next();
 });
 
-io.on("connection", async (socket) => {
-  if (inactivityTimeout) clearTimeout(inactivityTimeout);
+const lockManager = new LockManager();
 
-  const data = socket.data as {
-    userId: string;
-    sandboxId: string;
-    isOwner: boolean;
-  };
+if (!process.env.DOKKU_HOST) console.error('Environment variable DOKKU_HOST is not defined');
+if (!process.env.DOKKU_USERNAME) console.error('Environment variable DOKKU_USERNAME is not defined');
+if (!process.env.DOKKU_KEY) console.error('Environment variable DOKKU_KEY is not defined');
 
-  if (data.isOwner) {
-    isOwnerConnected = true;
-  } else {
-    if (!isOwnerConnected) {
-      socket.emit("disableAccess", "The sandbox owner is not connected.");
-      return;
-    }
-  }
-
-  const sandboxFiles = await getSandboxFiles(data.sandboxId);
-  sandboxFiles.fileData.forEach((file) => {
-    const filePath = path.join(dirName, file.id);
-    fs.mkdirSync(path.dirname(filePath), { recursive: true });
-    fs.writeFile(filePath, file.data, function (err) {
-      if (err) throw err;
-    });
-  });
-
-  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;
-
-      fs.writeFile(path.join(dirName, file.id), body, function (err) {
-        if (err) throw err;
-      });
-      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();
-
-    fs.rename(
-      path.join(dirName, fileId),
-      path.join(dirName, newFileId),
-      function (err) {
-        if (err) throw err;
-      }
-    );
-
-    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}`;
-
-      fs.writeFile(path.join(dirName, id), "", function (err) {
-        if (err) throw err;
-      });
-
-      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}`;
-
-      fs.mkdir(path.join(dirName, id), { recursive: true }, function (err) {
-        if (err) throw err;
-      });
-
-      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;
-
-      fs.rename(
-        path.join(dirName, fileId),
-        path.join(dirName, newFileId),
-        function (err) {
-          if (err) throw err;
-        }
-      );
-      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;
-
-      fs.unlink(path.join(dirName, fileId), function (err) {
-        if (err) throw err;
-      });
-      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) => {
-        fs.unlink(path.join(dirName, file), function (err) {
-          if (err) throw err;
-        });
-
-        sandboxFiles.fileData = sandboxFiles.fileData.filter(
-          (f) => f.id !== file
-        );
-
-        await deleteFile(file);
+const client =
+  process.env.DOKKU_HOST && process.env.DOKKU_KEY && process.env.DOKKU_USERNAME
+    ? new DokkuClient({
+        host: process.env.DOKKU_HOST,
+        username: process.env.DOKKU_USERNAME,
+        privateKey: fs.readFileSync(process.env.DOKKU_KEY),
       })
-    );
+    : null;
+client?.connect();
 
-    const newFiles = await getSandboxFiles(data.sandboxId);
+const git = process.env.DOKKU_HOST && process.env.DOKKU_KEY ? new SecureGitClient(
+  `dokku@${process.env.DOKKU_HOST}`,
+  process.env.DOKKU_KEY
+) : null;
 
-    callback(newFiles.files);
-  });
+io.on("connection", async (socket) => {
+  try {
+    if (inactivityTimeout) clearTimeout(inactivityTimeout);
 
-  socket.on("createTerminal", (id: string, callback) => {
-    if (terminals[id] || Object.keys(terminals).length >= 4) {
-      return;
-    }
-
-    const pty = spawn(os.platform() === "win32" ? "cmd.exe" : "bash", [], {
-      name: "xterm",
-      cols: 100,
-      cwd: path.join(dirName, "projects", data.sandboxId),
-    });
-
-    const onData = pty.onData((data) => {
-      io.emit("terminalResponse", {
-        id,
-        data,
-      });
-    });
-
-    const onExit = pty.onExit((code) => console.log("exit :(", code));
-
-    pty.write("export PS1='\\u > '\r");
-    pty.write("clear\r");
-
-    terminals[id] = {
-      terminal: pty,
-      onData,
-      onExit,
+    const data = socket.data as {
+      userId: string;
+      sandboxId: string;
+      isOwner: boolean;
     };
 
-    callback();
-  });
-
-  socket.on("resizeTerminal", (dimensions: { cols: number; rows: number }) => {
-    Object.values(terminals).forEach((t) => {
-      t.terminal.resize(dimensions.cols, dimensions.rows);
-    });
-  });
-
-  socket.on("terminalData", (id: string, data: string) => {
-    if (!terminals[id]) {
-      return;
-    }
-
-    try {
-      terminals[id].terminal.write(data);
-    } catch (e) {
-      console.log("Error writing to terminal", e);
-    }
-  });
-
-  socket.on("closeTerminal", (id: string, callback) => {
-    if (!terminals[id]) {
-      return;
-    }
-
-    terminals[id].onData.dispose();
-    terminals[id].onExit.dispose();
-    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) {
-      Object.entries(terminals).forEach((t) => {
-        const { terminal, onData, onExit } = t[1];
-        onData.dispose();
-        onExit.dispose();
-        delete terminals[t[0]];
-      });
-
-      socket.broadcast.emit(
-        "disableAccess",
-        "The sandbox owner has disconnected."
-      );
+      isOwnerConnected = true;
+      connections[data.sandboxId] = (connections[data.sandboxId] ?? 0) + 1;
+    } else {
+      if (!isOwnerConnected) {
+        socket.emit("disableAccess", "The sandbox owner is not connected.");
+        return;
+      }
     }
 
-    // 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);
-    // }
-  });
+    await lockManager.acquireLock(data.sandboxId, async () => {
+      try {
+        if (!containers[data.sandboxId]) {
+          containers[data.sandboxId] = await Sandbox.create();
+          console.log("Created container ", data.sandboxId);
+        }
+      } 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) => {
+      if (!fileId) return; // handles saving when no file is open
+
+      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}`);
+        }
+      }
+    );
+
+    interface CallbackResponse {
+      success: boolean;
+      apps?: string[];
+      message?: string;
+    }
+
+    socket.on(
+      "list",
+      async (callback: (response: CallbackResponse) => void) => {
+        console.log("Retrieving apps list...");
+        try {
+          if (!client) throw Error("Failed to retrieve apps list: No Dokku client")
+          callback({
+            success: true,
+            apps: await client.listApps()
+          });
+        } catch (error) {
+          callback({
+            success: false,
+            message: "Failed to retrieve apps list",
+          });
+        }
+      }
+    );
+
+    socket.on(
+      "deploy",
+      async (callback: (response: CallbackResponse) => void) => {
+        try {
+          // Push the project files to the Dokku server
+          console.log("Deploying project ${data.sandboxId}...");
+          if (!git) throw Error("Failed to retrieve apps list: No git client")
+          // Remove the /project/[id]/ component of each file path:
+          const fixedFilePaths = sandboxFiles.fileData.map((file) => {
+            return {
+              ...file,
+              id: file.id.split("/").slice(2).join("/"),
+            };
+          });
+          // Push all files to Dokku.
+          await git.pushFiles(fixedFilePaths, data.sandboxId);
+          callback({
+            success: true,
+          });
+        } catch (error) {
+          callback({
+            success: false,
+            message: "Failed to deploy project: " + error,
+          });
+        }
+      }
+    );
+
+    socket.on("createFile", async (name: string, callback) => {
+      try {
+        const size: number = await getProjectSize(data.sandboxId);
+        // limit is 200mb
+        if (size > 200 * 1024 * 1024) {
+          io.emit(
+            "error",
+            "Rate limited: project size exceeded. Please delete some files."
+          );
+          callback({ success: false });
+          return;
+        }
+
+        try {
+          await createFileRL.consume(data.userId, 1);
+        } catch (e) {
+          io.emit("error", "Rate limited: file creation. Please slow down.");
+          return;
+        }
+
+        const id = `projects/${data.sandboxId}/${name}`;
+
+        await containers[data.sandboxId].filesystem.write(
+          path.join(dirName, id),
+          ""
+        );
+        fixPermissions();
+
+        sandboxFiles.files.push({
+          id,
+          name,
+          type: "file",
+        });
+
+        sandboxFiles.fileData.push({
+          id,
+          data: "",
+        });
+
+        await createFile(id);
+
+        callback({ success: true });
+      } catch (e: any) {
+        console.error("Error creating file:", e);
+        io.emit("error", `Error: file creation. ${e.message ?? e}`);
+      }
+    });
+
+    socket.on("createFolder", async (name: string, callback) => {
+      try {
+        try {
+          await createFolderRL.consume(data.userId, 1);
+        } catch (e) {
+          io.emit("error", "Rate limited: folder creation. Please slow down.");
+          return;
+        }
+
+        const id = `projects/${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: (responseData: string) => {
+                io.emit("terminalResponse", { id, data: responseData });
+
+                function extractPortNumber(inputString: string) {
+                  // Remove ANSI escape codes
+                  const cleanedString = inputString.replace(/\x1B\[[0-9;]*m/g, '');
+                  // Regular expression to match port number
+                  const regex = /http:\/\/localhost:(\d+)/;
+                  // If a match is found, return the port number
+                  const match = cleanedString.match(regex);
+                  return match ? match[1] :  null;
+                }
+                const port = parseInt(extractPortNumber(responseData) ?? "");
+                if (port) {
+                  io.emit(
+                    "previewURL",
+                    "https://" + containers[data.sandboxId].getHostname(port)
+                  );
+                }
+
+              },
+              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}`);
+          }
+        });
+
+        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) => {
+      try {
+        if (!terminals[id]) {
+          return;
+        }
+
+        terminals[id].sendData(data);
+      } catch (e: any) {
+        console.error("Error writing to terminal:", e);
+        io.emit("error", `Error: writing to terminal. ${e.message ?? e}`);
+      }
+    });
+
+    socket.on("closeTerminal", async (id: string, callback) => {
+      try {
+        if (!terminals[id]) {
+          return;
+        }
+
+        await terminals[id].kill();
+        delete terminals[id];
+
+        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, () => {

backend/server/src/utils.ts

@@ -1,177 +1,23 @@
-import * as dotenv from "dotenv";
-import {
-  R2FileBody,
-  R2Files,
-  Sandbox,
-  TFile,
-  TFileData,
-  TFolder,
-} from "./types";
+export class LockManager {
+  private locks: { [key: string]: Promise<any> };
 
-dotenv.config();
-
-export const getSandboxFiles = async (id: string) => {
-  const res = await fetch(
-    `${process.env.STORAGE_WORKER_URL}/api?sandboxId=${id}`,
-    {
-      headers: {
-        Authorization: `${process.env.WORKERS_KEY}`,
-      },
-    }
-  );
-  const data: R2Files = await res.json();
-
-  const paths = data.objects.map((obj) => obj.key);
-  const processedFiles = await processFiles(paths, id);
-  return processedFiles;
-};
-
-export const getFolder = async (folderId: string) => {
-  const res = await fetch(
-    `${process.env.STORAGE_WORKER_URL}/api?folderId=${folderId}`,
-    {
-      headers: {
-        Authorization: `${process.env.WORKERS_KEY}`,
-      },
-    }
-  );
-  const data: R2Files = await res.json();
-
-  return data.objects.map((obj) => obj.key);
-};
-
-const processFiles = async (paths: string[], id: string) => {
-  const root: TFolder = { id: "/", type: "folder", name: "/", children: [] };
-  const fileData: TFileData[] = [];
-
-  paths.forEach((path) => {
-    const allParts = path.split("/");
-    if (allParts[1] !== id) {
-      return;
-    }
-
-    const parts = allParts.slice(2);
-    let current: TFolder = root;
-
-    for (let i = 0; i < parts.length; i++) {
-      const part = parts[i];
-      const isFile = i === parts.length - 1 && part.includes(".");
-      const existing = current.children.find((child) => child.name === part);
-
-      if (existing) {
-        if (!isFile) {
-          current = existing as TFolder;
-        }
-      } else {
-        if (isFile) {
-          const file: TFile = { id: path, type: "file", name: part };
-          current.children.push(file);
-          fileData.push({ id: path, data: "" });
-        } else {
-          const folder: TFolder = {
-            // id: path, // todo: wrong id. for example, folder "src" ID is: projects/a7vgttfqbgy403ratp7du3ln/src/App.css
-            id: `projects/${id}/${parts.slice(0, i + 1).join("/")}`,
-            type: "folder",
-            name: part,
-            children: [],
-          };
-          current.children.push(folder);
-          current = folder;
-        }
-      }
-    }
-  });
-
-  await Promise.all(
-    fileData.map(async (file) => {
-      const data = await fetchFileContent(file.id);
-      file.data = data;
-    })
-  );
-
-  return {
-    files: root.children,
-    fileData,
-  };
-};
-
-const fetchFileContent = async (fileId: string): Promise<string> => {
-  try {
-    const fileRes = await fetch(
-      `${process.env.STORAGE_WORKER_URL}/api?fileId=${fileId}`,
-      {
-        headers: {
-          Authorization: `${process.env.WORKERS_KEY}`,
-        },
-      }
-    );
-    return await fileRes.text();
-  } catch (error) {
-    console.error("ERROR fetching file:", error);
-    return "";
+  constructor() {
+    this.locks = {};
   }
-};
 
-export const createFile = async (fileId: string) => {
-  const res = await fetch(`${process.env.STORAGE_WORKER_URL}/api`, {
-    method: "POST",
-    headers: {
-      "Content-Type": "application/json",
-      Authorization: `${process.env.WORKERS_KEY}`,
-    },
-    body: JSON.stringify({ fileId }),
-  });
-  return res.ok;
-};
-
-export const renameFile = async (
-  fileId: string,
-  newFileId: string,
-  data: string
-) => {
-  const res = await fetch(`${process.env.STORAGE_WORKER_URL}/api/rename`, {
-    method: "POST",
-    headers: {
-      "Content-Type": "application/json",
-      Authorization: `${process.env.WORKERS_KEY}`,
-    },
-    body: JSON.stringify({ fileId, newFileId, data }),
-  });
-  return res.ok;
-};
-
-export const saveFile = async (fileId: string, data: string) => {
-  const res = await fetch(`${process.env.STORAGE_WORKER_URL}/api/save`, {
-    method: "POST",
-    headers: {
-      "Content-Type": "application/json",
-      Authorization: `${process.env.WORKERS_KEY}`,
-    },
-    body: JSON.stringify({ fileId, data }),
-  });
-  return res.ok;
-};
-
-export const deleteFile = async (fileId: string) => {
-  const res = await fetch(`${process.env.STORAGE_WORKER_URL}/api`, {
-    method: "DELETE",
-    headers: {
-      "Content-Type": "application/json",
-      Authorization: `${process.env.WORKERS_KEY}`,
-    },
-    body: JSON.stringify({ fileId }),
-  });
-  return res.ok;
-};
-
-export const getProjectSize = async (id: string) => {
-  const res = await fetch(
-    `${process.env.STORAGE_WORKER_URL}/api/size?sandboxId=${id}`,
-    {
-      headers: {
-        Authorization: `${process.env.WORKERS_KEY}`,
-      },
+  async acquireLock<T>(key: string, task: () => Promise<T>): Promise<T> {
+    if (!this.locks[key]) {
+      this.locks[key] = new Promise<T>(async (resolve, reject) => {
+        try {
+          const result = await task();
+          resolve(result);
+        } catch (error) {
+          reject(error);
+        } finally {
+          delete this.locks[key];
+        }
+      });
     }
-  );
-  return (await res.json()).size;
-};
+    return await this.locks[key];
+  }
+}

backend/storage/src/index.ts

@@ -1,5 +1,4 @@
 import { z } from "zod"
-import startercode from "./startercode"
 
 export interface Env {
 	R2: R2Bucket
@@ -137,19 +136,25 @@ export default {
 		} else if (path === "/api/init" && method === "POST") {
 			const initSchema = z.object({
 				sandboxId: z.string(),
-				type: z.enum(["react", "node"]),
+				type: z.string(),
 			})
 
 			const body = await request.json()
 			const { sandboxId, type } = initSchema.parse(body)
 
-			console.log(startercode[type])
+			console.log(`Copying template: ${type}`);
 
-			await Promise.all(
-				startercode[type].map(async (file) => {
-					await env.R2.put(`projects/${sandboxId}/${file.name}`, file.body)
-				})
-			)
+			const templateDirectory = `templates/${type}`;
+
+			// List all objects under the directory
+			const { objects } = await env.R2.list({ prefix: templateDirectory });
+
+			// Copy each object to the new directory
+			for (const { key } of objects) {
+				const destinationKey = key.replace(templateDirectory, `projects/${sandboxId}`);
+				const fileBody = await env.R2.get(key).then(res => res?.body ?? "");
+				await env.R2.put(destinationKey, fileBody);
+			}
 
 			return success
 		} else {

backend/storage/src/startercode.ts

@@ -1,151 +0,0 @@
-const startercode = {
-	node: [
-		{ name: "index.js", body: `console.log("Hello World!")` },
-		{
-			name: "package.json",
-			body: `{
-  "name": "nodejs",
-  "version": "1.0.0",
-  "description": "",
-  "main": "index.js",
-  "keywords": [],
-  "author": "",
-  "license": "ISC",
-  "dependencies": {
-    "@types/node": "^18.0.6"
-  }
-}`,
-		},
-	],
-	react: [
-		{
-			name: "package.json",
-			body: `{
-  "name": "react",
-  "private": true,
-  "version": "0.0.0",
-  "type": "module",
-  "scripts": {
-    "dev": "vite",
-    "build": "vite build",
-    "lint": "eslint . --ext js,jsx --report-unused-disable-directives --max-warnings 0",
-    "preview": "vite preview"
-  },
-  "dependencies": {
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0"
-  },
-  "devDependencies": {
-    "@types/react": "^18.2.66",
-    "@types/react-dom": "^18.2.22",
-    "@vitejs/plugin-react": "^4.2.1",
-    "eslint": "^8.57.0",
-    "eslint-plugin-react": "^7.34.1",
-    "eslint-plugin-react-hooks": "^4.6.0",
-    "eslint-plugin-react-refresh": "^0.4.6",
-    "vite": "^5.2.0"
-  }
-}`,
-		},
-		{
-			name: "vite.config.js",
-			body: `import { defineConfig } from 'vite'
-import react from '@vitejs/plugin-react'
-
-// https://vitejs.dev/config/
-export default defineConfig({
-  plugins: [react()],
-  server: {
-    port: 5173,
-    host: "0.0.0.0",
-  }
-})
-`,
-		},
-		{
-			name: "index.html",
-			body: `<!doctype html>
-<html lang="en">
-  <head>
-    <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-    <title>React Starter Code</title>
-  </head>
-  <body>
-    <div id="root"></div>
-    <script type="module" src="/src/main.jsx"></script>
-  </body>
-</html>
-`,
-		},
-		{
-			name: "src/App.css",
-			body: `div {
-  width: 100%;
-  height: 100vh;
-  display: flex;
-  flex-direction: column;
-  align-items: center;
-  justify-content: center;
-
-  font-family: sans-serif;
-}
-
-h1 {
-  color: #000;
-  margin: 0;
-}
-
-p {
-  color: #777;
-  margin: 0;
-}
-
-button {
-  padding: 8px 16px;
-  margin-top: 16px;
-}`,
-		},
-		{
-			name: "src/App.jsx",
-			body: `import './App.css'
-import { useState } from 'react'
-
-function App() {
-
-  const [count, setCount] = useState(0)
-
-  return (
-    <div>
-      <h1>React Starter Code</h1>
-      <p>
-        Edit App.jsx to get started.
-      </p>
-      <button onClick={() => setCount(count => count + 1)}>
-        Clicked {count} times
-      </button>
-    </div>
-  )
-}
-
-export default App
-`,
-		},
-		{
-			name: "src/main.jsx",
-			body: `import React from 'react'
-import ReactDOM from 'react-dom/client'
-import App from './App.jsx'
-
-ReactDOM.createRoot(document.getElementById('root')).render(
-  <React.StrictMode>
-    <App />
-  </React.StrictMode>,
-)
-`,
-		},
-	],
-}
-
-export default startercode

frontend/.env.example

@@ -3,7 +3,7 @@ CLERK_SECRET_KEY=
 NEXT_PUBLIC_LIVEBLOCKS_PUBLIC_KEY=
 LIVEBLOCKS_SECRET_KEY=
 
-NEXT_PUBLIC_SERVER_PORT=4000
+NEXT_PUBLIC_SERVER_URL=http://localhost:4000
 NEXT_PUBLIC_APP_URL=http://localhost:3000
 
 # Set WORKER_URLs after deploying the workers.

frontend/app/(app)/code/[id]/page.tsx

@@ -63,14 +63,6 @@ const CodeEditor = dynamic(() => import("@/components/editor"), {
   loading: () => <Loading />,
 })
 
-function getReactDefinitionFile() {
-  const reactDefinitionFile = fs.readFileSync(
-    "node_modules/@types/react/index.d.ts",
-    "utf8"
-  )
-  return reactDefinitionFile
-}
-
 export default async function CodePage({ params }: { params: { id: string } }) {
   const user = await currentUser()
   const sandboxId = params.id
@@ -94,8 +86,6 @@ export default async function CodePage({ params }: { params: { id: string } }) {
     return notFound()
   }
 
-  const reactDefinitionFile = getReactDefinitionFile()
-
   return (
     <div className="overflow-hidden overscroll-none w-screen flex flex-col h-screen bg-background">
       <Room id={sandboxId}>
@@ -104,7 +94,6 @@ export default async function CodePage({ params }: { params: { id: string } }) {
           <CodeEditor
             userData={userData}
             sandboxData={sandboxData}
-            reactDefinitionFile={reactDefinitionFile}
           />
         </div>
       </Room>

frontend/app/layout.tsx

@@ -6,6 +6,9 @@ import { ThemeProvider } from "@/components/layout/themeProvider"
 import { ClerkProvider } from "@clerk/nextjs"
 import { Toaster } from "@/components/ui/sonner"
 import { Analytics } from "@vercel/analytics/react"
+import { TerminalProvider } from '@/context/TerminalContext';
+import { PreviewProvider } from "@/context/PreviewContext";
+import { SocketProvider } from '@/context/SocketContext'
 
 export const metadata: Metadata = {
   title: "Sandbox",
@@ -13,7 +16,7 @@ export const metadata: Metadata = {
 }
 
 export default function RootLayout({
-  children,
+  children
 }: Readonly<{
   children: React.ReactNode
 }>) {
@@ -27,7 +30,13 @@ export default function RootLayout({
             forcedTheme="dark"
             disableTransitionOnChange
           >
+            <SocketProvider>
+            <PreviewProvider>
+            <TerminalProvider>
             {children}
+            </TerminalProvider>
+            </PreviewProvider>
+            </SocketProvider>
             <Analytics />
             <Toaster position="bottom-left" richColors />
           </ThemeProvider>
@@ -35,4 +44,4 @@ export default function RootLayout({
       </html>
     </ClerkProvider>
   )
-}
+}

frontend/app/providers.js

@@ -0,0 +1,13 @@
+"use client"
+import posthog from "posthog-js"
+import { PostHogProvider } from "posthog-js/react"
+
+if (typeof window !== "undefined") {
+  posthog.init(process.env.NEXT_PUBLIC_POSTHOG_KEY, {
+    api_host: process.env.NEXT_PUBLIC_POSTHOG_HOST,
+  })
+}
+
+export function PHProvider({ children }) {
+  return <PostHogProvider client={posthog}>{children}</PostHogProvider>
+}

frontend/components/dashboard/index.tsx

@@ -49,10 +49,8 @@ export default function Dashboard({
   const q = searchParams.get("q")
   const router = useRouter()
 
-  useEffect(() => {
-    if (!sandboxes) {
-      router.refresh()
-    }
+  useEffect(() => { // update the dashboard to show a new project
+      router.refresh() 
   }, [sandboxes])
 
   return (

frontend/components/dashboard/newProject.tsx

@@ -37,43 +37,41 @@ import { useRouter } from "next/navigation"
 import { Loader2 } from "lucide-react"
 import { Button } from "../ui/button"
 
-type TOptions = "react" | "node" | "python" | "more"
-
 const data: {
-  id: TOptions
+  id: string
   name: string
   icon: string
   description: string
   disabled: boolean
 }[] = [
   {
-    id: "react",
+    id: "reactjs",
     name: "React",
     icon: "/project-icons/react.svg",
     description: "A JavaScript library for building user interfaces",
     disabled: false,
   },
   {
-    id: "node",
-    name: "Node",
+    id: "vanillajs",
+    name: "HTML/JS",
+    icon: "/project-icons/more.svg",
+    description: "More coming soon, feel free to contribute on GitHub",
+    disabled: false,
+  },
+  {
+    id: "nextjs",
+    name: "NextJS",
     icon: "/project-icons/node.svg",
     description: "A JavaScript runtime built on the V8 JavaScript engine",
     disabled: false,
   },
   {
-    id: "python",
-    name: "Python",
+    id: "streamlit",
+    name: "Streamlit",
     icon: "/project-icons/python.svg",
-    description: "A high-level, general-purpose language, coming soon",
-    disabled: true,
-  },
-  {
-    id: "more",
-    name: "More Languages",
-    icon: "/project-icons/more.svg",
-    description: "More coming soon, feel free to contribute on GitHub",
-    disabled: true,
-  },
+    description: "A JavaScript runtime built on the V8 JavaScript engine",
+    disabled: false,
+  }
 ]
 
 const formSchema = z.object({
@@ -95,7 +93,7 @@ export default function NewProjectModal({
   open: boolean
   setOpen: (open: boolean) => void
 }) {
-  const [selected, setSelected] = useState<TOptions>("react")
+  const [selected, setSelected] = useState("react")
   const [loading, setLoading] = useState(false)
   const router = useRouter()
 

frontend/components/dashboard/projects.tsx

@@ -12,7 +12,7 @@ import { toast } from "sonner";
 import { useEffect, useState } from "react";
 import { CanvasRevealEffect } from "./projectCard/revealEffect";
 
-const colors = {
+const colors: { [key: string]: number[][] } = {
   react: [
     [71, 207, 237],
     [30, 126, 148],

frontend/components/editor/index.tsx

@@ -1,9 +1,8 @@
 "use client"
 
-import { useEffect, useRef, useState } from "react"
+import { SetStateAction, useCallback, useEffect, useRef, useState } from "react"
 import monaco from "monaco-editor"
 import Editor, { BeforeMount, OnMount } from "@monaco-editor/react"
-import { io } from "socket.io-client"
 import { toast } from "sonner"
 import { useClerk } from "@clerk/nextjs"
 
@@ -23,7 +22,7 @@ import Tab from "../ui/tab"
 import Sidebar from "./sidebar"
 import GenerateInput from "./generate"
 import { Sandbox, User, TFile, TFolder, TTab } from "@/lib/types"
-import { addNew, processFileType, validateName } from "@/lib/utils"
+import { addNew, processFileType, validateName, debounce } from "@/lib/utils"
 import { Cursors } from "./live/cursors"
 import { Terminal } from "@xterm/xterm"
 import DisableAccessModal from "./live/disableModal"
@@ -31,23 +30,32 @@ import Loading from "./loading"
 import PreviewWindow from "./preview"
 import Terminals from "./terminals"
 import { ImperativePanelHandle } from "react-resizable-panels"
+import { PreviewProvider, usePreview } from '@/context/PreviewContext';
+import { useSocket } from "@/context/SocketContext"
 
 export default function CodeEditor({
   userData,
   sandboxData,
-  reactDefinitionFile,
 }: {
   userData: User
   sandboxData: Sandbox
-  reactDefinitionFile: string
 }) {
-  const socket = io(
-    `http://localhost:${process.env.NEXT_PUBLIC_SERVER_PORT}?userId=${userData.id}&sandboxId=${sandboxData.id}`,
-    {
-      timeout: 2000,
-    }
-  )
 
+  //SocketContext functions and effects
+  const { socket, setUserAndSandboxId } = useSocket();
+
+  useEffect(() => {
+    // Ensure userData.id and sandboxData.id are available before attempting to connect
+    if (userData.id && sandboxData.id) {
+      // Check if the socket is not initialized or not connected
+      if (!socket || (socket && !socket.connected)) {
+        // Initialize socket connection
+        setUserAndSandboxId(userData.id, sandboxData.id);
+      }
+    }
+  }, [socket, userData.id, sandboxData.id, setUserAndSandboxId]);
+
+  //Preview Button state
   const [isPreviewCollapsed, setIsPreviewCollapsed] = useState(true)
   const [disableAccess, setDisableAccess] = useState({
     isDisabled: false,
@@ -90,6 +98,16 @@ export default function CodeEditor({
     }[]
   >([])
 
+  // Preview state
+  const [previewURL, setPreviewURL] = useState<string>("");
+
+  const loadPreviewURL = (url: string) => {
+    // This will cause a reload if previewURL changed.
+    setPreviewURL(url);
+    // If the URL didn't change, still reload the preview.
+    previewWindowRef.current?.refreshIframe();
+  }
+
   const isOwner = sandboxData.userId === userData.id
   const clerk = useClerk()
 
@@ -98,6 +116,16 @@ export default function CodeEditor({
   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)
   const monacoRef = useRef<typeof monaco | null>(null)
@@ -105,6 +133,7 @@ export default function CodeEditor({
   const generateWidgetRef = useRef<HTMLDivElement>(null)
   const previewPanelRef = useRef<ImperativePanelHandle>(null)
   const editorPanelRef = useRef<ImperativePanelHandle>(null)
+  const previewWindowRef = useRef<{ refreshIframe: () => void }>(null)
 
   // Pre-mount editor keybindings
   const handleEditorWillMount: BeforeMount = (monaco) => {
@@ -290,26 +319,33 @@ export default function CodeEditor({
   }, [decorations.options])
 
   // Save file keybinding logic effect
+  const debouncedSaveData = useCallback(
+    debounce((value: string | undefined, activeFileId: string | undefined) => {
+      setTabs((prev) =>
+        prev.map((tab) =>
+          tab.id === activeFileId ? { ...tab, saved: true } : tab
+        )
+      );
+      console.log(`Saving file...${activeFileId}`);
+      console.log(`Saving file...${value}`);
+      socket?.emit("saveFile", activeFileId, value);
+    }, Number(process.env.FILE_SAVE_DEBOUNCE_DELAY) || 1000),
+    [socket]
+  );
+
   useEffect(() => {
     const down = (e: KeyboardEvent) => {
       if (e.key === "s" && (e.metaKey || e.ctrlKey)) {
-        e.preventDefault()
-
-        setTabs((prev) =>
-          prev.map((tab) =>
-            tab.id === activeFileId ? { ...tab, saved: true } : tab
-          )
-        )
-
-        socket.emit("saveFile", activeFileId, editorRef?.getValue())
+        e.preventDefault();
+        debouncedSaveData(editorRef?.getValue(), activeFileId);
       }
-    }
-    document.addEventListener("keydown", down)
+    };
+    document.addEventListener("keydown", down);
 
     return () => {
-      document.removeEventListener("keydown", down)
-    }
-  }, [tabs, activeFileId])
+      document.removeEventListener("keydown", down);
+    };
+  }, [activeFileId, tabs, debouncedSaveData]);
 
   // Liveblocks live collaboration setup effect
   useEffect(() => {
@@ -318,56 +354,88 @@ export default function CodeEditor({
 
     if (!editorRef || !tab || !model) return
 
-    const yDoc = new Y.Doc()
-    const yText = yDoc.getText(tab.id)
-    const yProvider: any = new LiveblocksProvider(room, yDoc)
+    let providerData: ProviderData;
 
-    const onSync = (isSynced: boolean) => {
-      if (isSynced) {
-        const text = yText.toString()
-        if (text === "") {
-          if (activeFileContent) {
-            yText.insert(0, activeFileContent)
-          } else {
-            setTimeout(() => {
-              yText.insert(0, editorRef.getValue())
-            }, 0)
+    // When a file is opened for the first time, create a new provider and store in providersMap.
+    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) => {
+        if (isSynced) {
+          const text = yText.toString()
+          if (text === "") {
+            if (activeFileContent) {
+              yText.insert(0, activeFileContent)
+            } else {
+              setTimeout(() => {
+                yText.insert(0, editorRef.getValue())
+              }, 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(
-      yText,
+      providerData.yText,
       model,
       new Set([editorRef]),
-      yProvider.awareness as Awareness
-    )
+      providerData.provider.awareness as unknown as Awareness
+    );
+
+    providerData.binding = binding;
+    setProvider(providerData.provider);
 
     return () => {
-      yDoc.destroy()
-      yProvider.destroy()
-      binding.destroy()
-      yProvider.off("sync", onSync)
-    }
-  }, [editorRef, room, activeFileContent])
+      // Cleanup logic
+      if (binding) {
+        binding.destroy();
+      }
+      if (providerData.binding) {
+        providerData.binding = undefined;
+      }
+    };
+  }, [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(() => {
-    socket.connect()
-
+    socket?.connect()
     return () => {
-      socket.disconnect()
+      socket?.disconnect()
     }
-  }, [])
+  }, [socket])
 
   // Socket event listener effect
   useEffect(() => {
-    const onConnect = () => {}
+    const onConnect = () => { }
 
     const onDisconnect = () => {
       setTerminals([])
@@ -377,7 +445,7 @@ export default function CodeEditor({
       setFiles(files)
     }
 
-    const onRateLimit = (message: string) => {
+    const onError = (message: string) => {
       toast.error(message)
     }
 
@@ -396,52 +464,66 @@ export default function CodeEditor({
         })
     }
 
-    socket.on("connect", onConnect)
-    socket.on("disconnect", onDisconnect)
-    socket.on("loaded", onLoadedEvent)
-    socket.on("rateLimit", onRateLimit)
-    socket.on("terminalResponse", onTerminalResponse)
-    socket.on("disableAccess", onDisableAccess)
+    socket?.on("connect", onConnect)
+    socket?.on("disconnect", onDisconnect)
+    socket?.on("loaded", onLoadedEvent)
+    socket?.on("error", onError)
+    socket?.on("terminalResponse", onTerminalResponse)
+    socket?.on("disableAccess", onDisableAccess)
+    socket?.on("previewURL", loadPreviewURL)
 
     return () => {
-      socket.off("connect", onConnect)
-      socket.off("disconnect", onDisconnect)
-      socket.off("loaded", onLoadedEvent)
-      socket.off("rateLimit", onRateLimit)
-      socket.off("terminalResponse", onTerminalResponse)
-      socket.off("disableAccess", onDisableAccess)
+      socket?.off("connect", onConnect)
+      socket?.off("disconnect", onDisconnect)
+      socket?.off("loaded", onLoadedEvent)
+      socket?.off("error", onError)
+      socket?.off("terminalResponse", onTerminalResponse)
+      socket?.off("disableAccess", onDisableAccess)
+      socket?.off("previewURL", loadPreviewURL)
     }
-    // }, []);
-  }, [terminals])
+  }, [socket, terminals, setTerminals, setFiles, toast, setDisableAccess, isOwner, loadPreviewURL]);
 
   // Helper functions for tabs:
 
   // Select file and load content
-  const selectFile = (tab: TTab) => {
-    if (tab.id === activeFileId) return
 
-    setGenerate((prev) => {
-      return {
-        ...prev,
-        show: false,
-      }
-    })
-    const exists = tabs.find((t) => t.id === tab.id)
+  // Initialize debounced function once
+  const fileCache = useRef(new Map());
 
+  // Debounced function to get file content
+  const debouncedGetFile = useCallback(
+    debounce((tabId, callback) => {
+      socket?.emit('getFile', tabId, callback);
+    }, 300), // 300ms debounce delay, adjust as needed
+    []
+  );
+
+  const selectFile = useCallback((tab: TTab) => {
+    if (tab.id === activeFileId) return;
+
+    setGenerate((prev) => ({ ...prev, show: false }));
+
+    const exists = tabs.find((t) => t.id === tab.id);
     setTabs((prev) => {
       if (exists) {
-        setActiveFileId(exists.id)
-        return prev
+        setActiveFileId(exists.id);
+        return prev;
       }
-      return [...prev, tab]
-    })
+      return [...prev, tab];
+    });
 
-    socket.emit("getFile", tab.id, (response: string) => {
-      setActiveFileContent(response)
-    })
-    setEditorLanguage(processFileType(tab.name))
-    setActiveFileId(tab.id)
-  }
+    if (fileCache.current.has(tab.id)) {
+      setActiveFileContent(fileCache.current.get(tab.id));
+    } else {
+      debouncedGetFile(tab.id, (response: SetStateAction<string>) => {
+        fileCache.current.set(tab.id, response);
+        setActiveFileContent(response);
+      });
+    }
+
+    setEditorLanguage(processFileType(tab.name));
+    setActiveFileId(tab.id);
+  }, [activeFileId, tabs, debouncedGetFile]);
 
   // Close tab and remove from tabs
   const closeTab = (id: string) => {
@@ -457,8 +539,8 @@ export default function CodeEditor({
         ? numTabs === 1
           ? null
           : index < numTabs - 1
-          ? tabs[index + 1].id
-          : tabs[index - 1].id
+            ? tabs[index + 1].id
+            : tabs[index - 1].id
         : activeFileId
 
     setTabs((prev) => prev.filter((t) => t.id !== id))
@@ -515,7 +597,7 @@ export default function CodeEditor({
       return false
     }
 
-    socket.emit("renameFile", id, newName)
+    socket?.emit("renameFile", id, newName)
     setTabs((prev) =>
       prev.map((tab) => (tab.id === id ? { ...tab, name: newName } : tab))
     )
@@ -524,7 +606,7 @@ export default function CodeEditor({
   }
 
   const handleDeleteFile = (file: TFile) => {
-    socket.emit("deleteFile", file.id, (response: (TFolder | TFile)[]) => {
+    socket?.emit("deleteFile", file.id, (response: (TFolder | TFile)[]) => {
       setFiles(response)
     })
     closeTab(file.id)
@@ -534,11 +616,11 @@ export default function CodeEditor({
     setDeletingFolderId(folder.id)
     console.log("deleting folder", folder.id)
 
-    socket.emit("getFolder", folder.id, (response: string[]) =>
+    socket?.emit("getFolder", folder.id, (response: string[]) =>
       closeTabs(response)
     )
 
-    socket.emit("deleteFolder", folder.id, (response: (TFolder | TFile)[]) => {
+    socket?.emit("deleteFolder", folder.id, (response: (TFolder | TFile)[]) => {
       setFiles(response)
       setDeletingFolderId("")
     })
@@ -551,7 +633,7 @@ export default function CodeEditor({
         <DisableAccessModal
           message={disableAccess.message}
           open={disableAccess.isDisabled}
-          setOpen={() => {}}
+          setOpen={() => { }}
         />
         <Loading />
       </>
@@ -560,215 +642,212 @@ export default function CodeEditor({
   return (
     <>
       {/* Copilot DOM elements */}
-      <div ref={generateRef} />
-      <div className="z-50 p-1" ref={generateWidgetRef}>
-        {generate.show && ai ? (
-          <GenerateInput
-            user={userData}
-            socket={socket}
-            width={generate.width - 90}
-            data={{
-              fileName: tabs.find((t) => t.id === activeFileId)?.name ?? "",
-              code: editorRef?.getValue() ?? "",
-              line: generate.line,
-            }}
-            editor={{
-              language: editorLanguage,
-            }}
-            onExpand={() => {
-              editorRef?.changeViewZones(function (changeAccessor) {
-                changeAccessor.removeZone(generate.id)
+      <PreviewProvider>
+        <div ref={generateRef} />
+        <div className="z-50 p-1" ref={generateWidgetRef}>
+          {generate.show && ai ? (
+            <GenerateInput
+              user={userData}
+              socket={socket!}
+              width={generate.width - 90}
+              data={{
+                fileName: tabs.find((t) => t.id === activeFileId)?.name ?? "",
+                code: editorRef?.getValue() ?? "",
+                line: generate.line,
+              }}
+              editor={{
+                language: editorLanguage,
+              }}
+              onExpand={() => {
+                editorRef?.changeViewZones(function (changeAccessor) {
+                  changeAccessor.removeZone(generate.id)
 
-                if (!generateRef.current) return
-                const id = changeAccessor.addZone({
-                  afterLineNumber: cursorLine,
-                  heightInLines: 12,
-                  domNode: generateRef.current,
+                  if (!generateRef.current) return
+                  const id = changeAccessor.addZone({
+                    afterLineNumber: cursorLine,
+                    heightInLines: 12,
+                    domNode: generateRef.current,
+                  })
+                  setGenerate((prev) => {
+                    return { ...prev, id }
+                  })
                 })
+              }}
+              onAccept={(code: string) => {
+                const line = generate.line
                 setGenerate((prev) => {
-                  return { ...prev, id }
+                  return {
+                    ...prev,
+                    show: !prev.show,
+                  }
                 })
-              })
-            }}
-            onAccept={(code: string) => {
-              const line = generate.line
-              setGenerate((prev) => {
-                return {
-                  ...prev,
-                  show: !prev.show,
-                }
-              })
-              const file = editorRef?.getValue()
+                const file = editorRef?.getValue()
 
-              const lines = file?.split("\n") || []
-              lines.splice(line - 1, 0, code)
-              const updatedFile = lines.join("\n")
-              editorRef?.setValue(updatedFile)
-            }}
-            onClose={() => {
-              setGenerate((prev) => {
-                return {
-                  ...prev,
-                  show: !prev.show,
-                }
-              })
-            }}
-          />
-        ) : null}
-      </div>
+                const lines = file?.split("\n") || []
+                lines.splice(line - 1, 0, code)
+                const updatedFile = lines.join("\n")
+                editorRef?.setValue(updatedFile)
+              }}
+              onClose={() => {
+                setGenerate((prev) => {
+                  return {
+                    ...prev,
+                    show: !prev.show,
+                  }
+                })
+              }}
+            />
+          ) : null}
+        </div>
 
-      {/* Main editor components */}
-      <Sidebar
-        sandboxData={sandboxData}
-        files={files}
-        selectFile={selectFile}
-        handleRename={handleRename}
-        handleDeleteFile={handleDeleteFile}
-        handleDeleteFolder={handleDeleteFolder}
-        socket={socket}
-        setFiles={setFiles}
-        addNew={(name, type) => addNew(name, type, setFiles, sandboxData)}
-        deletingFolderId={deletingFolderId}
-        // AI Copilot Toggle
-        ai={ai}
-        setAi={setAi}
-      />
+        {/* Main editor components */}
+        <Sidebar
+          sandboxData={sandboxData}
+          files={files}
+          selectFile={selectFile}
+          handleRename={handleRename}
+          handleDeleteFile={handleDeleteFile}
+          handleDeleteFolder={handleDeleteFolder}
+          socket={socket!}
+          setFiles={setFiles}
+          addNew={(name, type) => addNew(name, type, setFiles, sandboxData)}
+          deletingFolderId={deletingFolderId}
+          // AI Copilot Toggle
+          ai={ai}
+          setAi={setAi}
+        />
 
-      {/* Shadcn resizeable panels: https://ui.shadcn.com/docs/components/resizable */}
-      <ResizablePanelGroup direction="horizontal">
-        <ResizablePanel
-          className="p-2 flex flex-col"
-          maxSize={80}
-          minSize={30}
-          defaultSize={60}
-          ref={editorPanelRef}
-        >
-          <div className="h-10 w-full flex gap-2 overflow-auto tab-scroll">
-            {/* File tabs */}
-            {tabs.map((tab) => (
-              <Tab
-                key={tab.id}
-                saved={tab.saved}
-                selected={activeFileId === tab.id}
-                onClick={(e) => {
-                  selectFile(tab)
-                }}
-                onClose={() => closeTab(tab.id)}
-              >
-                {tab.name}
-              </Tab>
-            ))}
-          </div>
-          {/* Monaco editor */}
-          <div
-            ref={editorContainerRef}
-            className="grow w-full overflow-hidden rounded-md relative"
+        {/* Shadcn resizeable panels: https://ui.shadcn.com/docs/components/resizable */}
+        <ResizablePanelGroup direction="horizontal">
+          <ResizablePanel
+            className="p-2 flex flex-col"
+            maxSize={80}
+            minSize={30}
+            defaultSize={60}
+            ref={editorPanelRef}
           >
-            {!activeFileId ? (
-              <>
-                <div className="w-full h-full flex items-center justify-center text-xl font-medium text-muted-foreground/50 select-none">
-                  <FileJson className="w-6 h-6 mr-3" />
-                  No file selected.
-                </div>
-              </>
-            ) : // Note clerk.loaded is required here due to a bug: https://github.com/clerk/javascript/issues/1643
-            clerk.loaded ? (
-              <>
-                {provider && userInfo ? (
-                  <Cursors yProvider={provider} userInfo={userInfo} />
-                ) : null}
-                <Editor
-                  height="100%"
-                  language={editorLanguage}
-                  beforeMount={handleEditorWillMount}
-                  onMount={handleEditorMount}
-                  onChange={(value) => {
-                    if (value === activeFileContent) {
-                      setTabs((prev) =>
-                        prev.map((tab) =>
-                          tab.id === activeFileId
-                            ? { ...tab, saved: true }
-                            : tab
-                        )
-                      )
-                    } else {
-                      setTabs((prev) =>
-                        prev.map((tab) =>
-                          tab.id === activeFileId
-                            ? { ...tab, saved: false }
-                            : tab
-                        )
-                      )
-                    }
+            <div className="h-10 w-full flex gap-2 overflow-auto tab-scroll">
+              {/* File tabs */}
+              {tabs.map((tab) => (
+                <Tab
+                  key={tab.id}
+                  saved={tab.saved}
+                  selected={activeFileId === tab.id}
+                  onClick={(e) => {
+                    selectFile(tab)
                   }}
-                  options={{
-                    tabSize: 2,
-                    minimap: {
-                      enabled: false,
-                    },
-                    padding: {
-                      bottom: 4,
-                      top: 4,
-                    },
-                    scrollBeyondLastLine: false,
-                    fixedOverflowWidgets: true,
-                    fontFamily: "var(--font-geist-mono)",
-                  }}
-                  theme="vs-dark"
-                  value={activeFileContent}
-                />
-              </>
-            ) : (
-              <div className="w-full h-full flex items-center justify-center text-xl font-medium text-muted-foreground/50 select-none">
-                <Loader2 className="animate-spin w-6 h-6 mr-3" />
-                Waiting for Clerk to load...
-              </div>
-            )}
-          </div>
-        </ResizablePanel>
-        <ResizableHandle />
-        <ResizablePanel defaultSize={40}>
-          <ResizablePanelGroup direction="vertical">
-            <ResizablePanel
-              ref={previewPanelRef}
-              defaultSize={4}
-              collapsedSize={4}
-              minSize={25}
-              collapsible
-              className="p-2 flex flex-col"
-              onCollapse={() => setIsPreviewCollapsed(true)}
-              onExpand={() => setIsPreviewCollapsed(false)}
+                  onClose={() => closeTab(tab.id)}
+                >
+                  {tab.name}
+                </Tab>
+              ))}
+            </div>
+            {/* Monaco editor */}
+            <div
+              ref={editorContainerRef}
+              className="grow w-full overflow-hidden rounded-md relative"
             >
-              <PreviewWindow
-                collapsed={isPreviewCollapsed}
-                open={() => {
-                  previewPanelRef.current?.expand()
-                  setIsPreviewCollapsed(false)
-                }}
-              />
-            </ResizablePanel>
-            <ResizableHandle />
-            <ResizablePanel
-              defaultSize={50}
-              minSize={20}
-              className="p-2 flex flex-col"
-            >
-              {isOwner ? (
-                <Terminals
-                  terminals={terminals}
-                  setTerminals={setTerminals}
-                  socket={socket}
-                />
-              ) : (
-                <div className="w-full h-full flex items-center justify-center text-lg font-medium text-muted-foreground/50 select-none">
-                  <TerminalSquare className="w-4 h-4 mr-2" />
-                  No terminal access.
-                </div>
-              )}
-            </ResizablePanel>
-          </ResizablePanelGroup>
-        </ResizablePanel>
-      </ResizablePanelGroup>
+              {!activeFileId ? (
+                <>
+                  <div className="w-full h-full flex items-center justify-center text-xl font-medium text-muted-foreground/50 select-none">
+                    <FileJson className="w-6 h-6 mr-3" />
+                    No file selected.
+                  </div>
+                </>
+              ) : // Note clerk.loaded is required here due to a bug: https://github.com/clerk/javascript/issues/1643
+                clerk.loaded ? (
+                  <>
+                    {provider && userInfo ? (
+                      <Cursors yProvider={provider} userInfo={userInfo} />
+                    ) : null}
+                    <Editor
+                      height="100%"
+                      language={editorLanguage}
+                      beforeMount={handleEditorWillMount}
+                      onMount={handleEditorMount}
+                      onChange={(value) => {
+                        if (value === activeFileContent) {
+                          setTabs((prev) =>
+                            prev.map((tab) =>
+                              tab.id === activeFileId
+                                ? { ...tab, saved: true }
+                                : tab
+                            )
+                          )
+                        } else {
+                          setTabs((prev) =>
+                            prev.map((tab) =>
+                              tab.id === activeFileId
+                                ? { ...tab, saved: false }
+                                : tab
+                            )
+                          )
+                        }
+                      }}
+                      options={{
+                        tabSize: 2,
+                        minimap: {
+                          enabled: false,
+                        },
+                        padding: {
+                          bottom: 4,
+                          top: 4,
+                        },
+                        scrollBeyondLastLine: false,
+                        fixedOverflowWidgets: true,
+                        fontFamily: "var(--font-geist-mono)",
+                      }}
+                      theme="vs-dark"
+                      value={activeFileContent}
+                    />
+                  </>
+                ) : (
+                  <div className="w-full h-full flex items-center justify-center text-xl font-medium text-muted-foreground/50 select-none">
+                    <Loader2 className="animate-spin w-6 h-6 mr-3" />
+                    Waiting for Clerk to load...
+                  </div>
+                )}
+            </div>
+          </ResizablePanel>
+          <ResizableHandle />
+          <ResizablePanel defaultSize={40}>
+            <ResizablePanelGroup direction="vertical">
+              <ResizablePanel
+                ref={usePreview().previewPanelRef}
+                defaultSize={4}
+                collapsedSize={4}
+                minSize={25}
+                collapsible
+                className="p-2 flex flex-col"
+                onCollapse={() => setIsPreviewCollapsed(true)}
+                onExpand={() => setIsPreviewCollapsed(false)}
+              >
+                <PreviewWindow
+                  open={() => {
+                    usePreview().previewPanelRef.current?.expand()
+                    setIsPreviewCollapsed(false)
+                  }} collapsed={isPreviewCollapsed} src={previewURL} ref={previewWindowRef} />
+              </ResizablePanel>
+              <ResizableHandle />
+              <ResizablePanel
+                defaultSize={50}
+                minSize={20}
+                className="p-2 flex flex-col"
+              >
+                {isOwner ? (
+                  <Terminals />
+                ) : (
+                  <div className="w-full h-full flex items-center justify-center text-lg font-medium text-muted-foreground/50 select-none">
+                    <TerminalSquare className="w-4 h-4 mr-2" />
+                    No terminal access.
+                  </div>
+                )}
+              </ResizablePanel>
+            </ResizablePanelGroup>
+          </ResizablePanel>
+        </ResizablePanelGroup>
+      </PreviewProvider>
     </>
   )
 }
+

frontend/components/editor/navbar/deploy.tsx

@@ -0,0 +1,78 @@
+"use client";
+
+import { useState } from "react";
+import { Button } from "@/components/ui/button";
+import { useTerminal } from "@/context/TerminalContext";
+import { Play, Pause, Globe, Globe2 } from "lucide-react";
+import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
+import { Sandbox, User } from "@/lib/types";
+
+export default function DeployButtonModal({
+  userData,
+  data,
+}: {
+  userData: User;
+  data: Sandbox;
+}) {
+  const { deploy } = useTerminal();
+  const [isDeploying, setIsDeploying] = useState(false);
+
+  const handleDeploy = () => {
+    if (isDeploying) {
+      console.log("Stopping deployment...");
+      setIsDeploying(false);
+    } else {
+      console.log("Starting deployment...");
+      setIsDeploying(true);
+      deploy(() => {
+        setIsDeploying(false);
+      });
+    }
+  };
+
+  return (
+    <>
+      <Popover>
+        <PopoverTrigger asChild>
+          <Button variant="outline">
+            <Globe className="w-4 h-4 mr-2" />
+            Deploy
+          </Button>
+        </PopoverTrigger>
+        <PopoverContent className="p-4 w-full max-w-xs sm:max-w-sm md:max-w-md lg:max-w-lg xl:max-w-xl rounded-lg shadow-lg" style={{ backgroundColor: 'rgb(10,10,10)', color: 'white' }}>
+          <h3 className="font-semibold text-gray-300 mb-2">Domains</h3>
+          <div className="flex flex-col gap-4">
+            <DeploymentOption
+              icon={<Globe className="text-gray-500 w-5 h-5" />}
+              domain={`${data.id}.gitwit.app`}
+              timestamp="Deployed 1h ago"
+              user={userData.name}
+            />
+          </div>
+          <Button variant="outline" className="mt-4 w-full bg-[#0a0a0a] text-white hover:bg-[#262626]" onClick={handleDeploy}>
+          {isDeploying ? "Deploying..." : "Update"}
+          </Button>
+        </PopoverContent>
+      </Popover>
+    </>
+  );
+}
+
+function DeploymentOption({ icon, domain, timestamp, user }: { icon: React.ReactNode; domain: string; timestamp: string; user: string }) {
+  return (
+    <div className="flex flex-col gap-2 w-full text-left p-2 rounded-md border border-gray-700 bg-gray-900">
+      <div className="flex items-start gap-2 relative">
+        <div className="flex-shrink-0">{icon}</div>
+        <a
+          href={`https://${domain}`}
+          target="_blank"
+          rel="noopener noreferrer"
+          className="font-semibold text-gray-300 hover:underline"
+        >
+          {domain}
+        </a>
+      </div>
+      <p className="text-sm text-gray-400 mt-0 ml-7">{timestamp} • {user}</p>
+    </div>
+  );
+}

frontend/components/editor/navbar/index.tsx

@@ -11,6 +11,8 @@ import { useState } from "react";
 import EditSandboxModal from "./edit";
 import ShareSandboxModal from "./share";
 import { Avatars } from "../live/avatars";
+import RunButtonModal from "./run";
+import DeployButtonModal from "./deploy";
 
 export default function Navbar({
   userData,
@@ -19,15 +21,13 @@ export default function Navbar({
 }: {
   userData: User;
   sandboxData: Sandbox;
-  shared: {
-    id: string;
-    name: string;
-  }[];
+  shared: { id: string; name: string }[];
 }) {
   const [isEditOpen, setIsEditOpen] = useState(false);
   const [isShareOpen, setIsShareOpen] = useState(false);
+  const [isRunning, setIsRunning] = useState(false);
 
-  const isOwner = sandboxData.userId === userData.id;
+  const isOwner = sandboxData.userId === userData.id;;
 
   return (
     <>
@@ -62,18 +62,29 @@ export default function Navbar({
             ) : null}
           </div>
         </div>
+        <RunButtonModal
+          isRunning={isRunning}
+          setIsRunning={setIsRunning}
+          sandboxData={sandboxData}
+        />
         <div className="flex items-center h-full space-x-4">
           <Avatars />
 
           {isOwner ? (
+            <>
+            <DeployButtonModal 
+            data={sandboxData}
+            userData={userData}
+            />
             <Button variant="outline" onClick={() => setIsShareOpen(true)}>
               <Users className="w-4 h-4 mr-2" />
               Share
             </Button>
+            </>
           ) : null}
           <UserButton userData={userData} />
         </div>
       </div>
     </>
   );
-}
+}

frontend/components/editor/navbar/run.tsx

@@ -0,0 +1,68 @@
+"use client";
+
+import { Play, StopCircle } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { useTerminal } from "@/context/TerminalContext";
+import { usePreview } from "@/context/PreviewContext";
+import { toast } from "sonner";
+import { Sandbox } from "@/lib/types";
+
+export default function RunButtonModal({
+  isRunning,
+  setIsRunning,
+  sandboxData,
+}: {
+  isRunning: boolean;
+  setIsRunning: (running: boolean) => void;
+  sandboxData: Sandbox;
+}) {
+  const { createNewTerminal, terminals, closeTerminal } = useTerminal();
+  const { setIsPreviewCollapsed, previewPanelRef } = usePreview();
+
+  const handleRun = () => {
+    if (isRunning) {
+      console.log('Stopping sandbox...');
+      console.log('Closing Preview Window');
+
+      terminals.forEach(term => {
+        if (term.terminal) {
+          closeTerminal(term.id);
+          console.log('Closing Terminal', term.id);
+        }
+      });
+
+      setIsPreviewCollapsed(true);
+      previewPanelRef.current?.collapse();
+    } else {
+      console.log('Running sandbox...');
+      console.log('Opening Terminal');
+      console.log('Opening Preview Window');
+
+      if (terminals.length < 4) {
+        if (sandboxData.type === "streamlit") {
+          createNewTerminal(
+            "pip install -r requirements.txt && streamlit run main.py --server.runOnSave true"
+          );
+        } else {
+          createNewTerminal("yarn install && yarn dev"); 
+        }
+      } else {
+        toast.error("You reached the maximum # of terminals.");
+        console.error("Maximum number of terminals reached.");
+      }
+
+      setIsPreviewCollapsed(false);
+      previewPanelRef.current?.expand();
+    }
+    setIsRunning(!isRunning);
+  };
+
+  return (
+    <>
+      <Button variant="outline" onClick={handleRun}>
+        {isRunning ? <StopCircle className="w-4 h-4 mr-2" /> : <Play className="w-4 h-4 mr-2" />}
+        {isRunning ? 'Stop' : 'Run'}
+      </Button>
+    </>
+  );
+}

frontend/components/editor/preview/index.tsx

@@ -1,64 +1,65 @@
 "use client"
 
 import {
-  ChevronLeft,
-  ChevronRight,
-  Globe,
   Link,
   RotateCw,
   TerminalSquare,
-  UnfoldVertical,
 } from "lucide-react"
-import { useRef, useState } from "react"
+import { useEffect, useRef, useState, useImperativeHandle, forwardRef } from "react"
 import { toast } from "sonner"
 
-export default function PreviewWindow({
+export default forwardRef(function PreviewWindow({
   collapsed,
   open,
+  src
 }: {
   collapsed: boolean
   open: () => void
-}) {
-  const ref = useRef<HTMLIFrameElement>(null)
+  src: string
+},
+ref: React.Ref<{
+  refreshIframe: () => void
+}>) {
+  const frameRef = useRef<HTMLIFrameElement>(null)
   const [iframeKey, setIframeKey] = useState(0)
+  const refreshIframe = () => {
+    setIframeKey(prev => prev + 1)
+  }
+  // Refresh the preview when the URL changes. 
+  useEffect(refreshIframe, [src])
+  // Expose refreshIframe method to the parent.
+  useImperativeHandle(ref, () => ({ refreshIframe }))
 
   return (
     <>
       <div
-        className={`${
-          collapsed ? "h-full" : "h-10"
-        } select-none w-full flex gap-2`}
+        className={`${collapsed ? "h-full" : "h-10"
+          } select-none w-full flex gap-2`}
       >
         <div className="h-8 rounded-md px-3 bg-secondary flex items-center w-full justify-between">
           <div className="text-xs">Preview</div>
           <div className="flex space-x-1 translate-x-1">
             {collapsed ? (
-              <PreviewButton onClick={open}>
-                <UnfoldVertical className="w-4 h-4" />
+              <PreviewButton disabled onClick={() => { }}>
+                <TerminalSquare className="w-4 h-4" />
               </PreviewButton>
             ) : (
               <>
-                {/* Todo, make this open inspector */}
-                {/* <PreviewButton disabled onClick={() => {}}>
-                  <TerminalSquare className="w-4 h-4" />
+                {/* Removed the unfoldvertical button since we have the same thing via the run button.
+                
+                <PreviewButton onClick={open}>
+                  <UnfoldVertical className="w-4 h-4" />
                 </PreviewButton> */}
 
                 <PreviewButton
                   onClick={() => {
-                    navigator.clipboard.writeText(`http://localhost:5173`)
+                    navigator.clipboard.writeText(src)
                     toast.info("Copied preview link to clipboard")
                   }}
                 >
                   <Link className="w-4 h-4" />
                 </PreviewButton>
-                <PreviewButton
-                  onClick={() => {
-                    // if (ref.current) {
-                    //   ref.current.contentWindow?.location.reload();
-                    // }
-                    setIframeKey((prev) => prev + 1)
-                  }}
-                >
+                <PreviewButton onClick={refreshIframe}>
                   <RotateCw className="w-3 h-3" />
                 </PreviewButton>
               </>
@@ -70,16 +71,16 @@ export default function PreviewWindow({
         <div className="w-full grow rounded-md overflow-hidden bg-foreground">
           <iframe
             key={iframeKey}
-            ref={ref}
+            ref={frameRef}
             width={"100%"}
             height={"100%"}
-            src={`http://localhost:5173`}
+            src={src}
           />
         </div>
       )}
     </>
   )
-}
+})
 
 function PreviewButton({
   children,
@@ -92,9 +93,8 @@ function PreviewButton({
 }) {
   return (
     <div
-      className={`${
-        disabled ? "pointer-events-none opacity-50" : ""
-      } p-0.5 h-5 w-5 ml-0.5 flex items-center justify-center transition-colors bg-transparent hover:bg-muted-foreground/25 cursor-pointer rounded-sm`}
+      className={`${disabled ? "pointer-events-none opacity-50" : ""
+        } p-0.5 h-5 w-5 ml-0.5 flex items-center justify-center transition-colors bg-transparent hover:bg-muted-foreground/25 cursor-pointer rounded-sm`}
       onClick={onClick}
     >
       {children}

frontend/components/editor/terminals/index.tsx

@@ -2,35 +2,45 @@
 
 import { Button } from "@/components/ui/button";
 import Tab from "@/components/ui/tab";
-import { closeTerminal, createTerminal } from "@/lib/terminal";
 import { Terminal } from "@xterm/xterm";
 import { Loader2, Plus, SquareTerminal, TerminalSquare } from "lucide-react";
-import { Socket } from "socket.io-client";
 import { toast } from "sonner";
 import EditorTerminal from "./terminal";
-import { useState } from "react";
+import { useTerminal } from "@/context/TerminalContext";
+import { useEffect } from "react";
+import { useSocket } from "@/context/SocketContext"
+
+export default function Terminals() {
+
+  const { socket } = useSocket();
+
+  const {
+    terminals,
+    setTerminals,
+    createNewTerminal,
+    closeTerminal,
+    activeTerminalId,
+    setActiveTerminalId,
+    creatingTerminal,
+  } = useTerminal();
 
-export default function Terminals({
-  terminals,
-  setTerminals,
-  socket,
-}: {
-  terminals: { id: string; terminal: Terminal | null }[];
-  setTerminals: React.Dispatch<
-    React.SetStateAction<
-      {
-        id: string;
-        terminal: Terminal | null;
-      }[]
-    >
-  >;
-  socket: Socket;
-}) {
-  const [activeTerminalId, setActiveTerminalId] = useState("");
-  const [creatingTerminal, setCreatingTerminal] = useState(false);
-  const [closingTerminal, setClosingTerminal] = useState("");
   const activeTerminal = terminals.find((t) => t.id === activeTerminalId);
 
+  // Effect to set the active terminal when a new one is created
+  useEffect(() => {
+    if (terminals.length > 0 && !activeTerminalId) {
+      setActiveTerminalId(terminals[terminals.length - 1].id);
+    }
+  }, [terminals, activeTerminalId, setActiveTerminalId]);
+
+  const handleCreateTerminal = () => {
+    if (terminals.length >= 4) {
+      toast.error("You reached the maximum # of terminals.");
+      return;
+    }
+    createNewTerminal();
+  };
+
   return (
     <>
       <div className="h-10 w-full overflow-auto flex gap-2 shrink-0 tab-scroll">
@@ -39,18 +49,7 @@ export default function Terminals({
             key={term.id}
             creating={creatingTerminal}
             onClick={() => setActiveTerminalId(term.id)}
-            onClose={() =>
-              closeTerminal({
-                term,
-                terminals,
-                setTerminals,
-                setActiveTerminalId,
-                setClosingTerminal,
-                socket,
-                activeTerminalId,
-              })
-            }
-            closing={closingTerminal === term.id}
+            onClose={() => closeTerminal(term.id)}
             selected={activeTerminalId === term.id}
           >
             <SquareTerminal className="w-4 h-4 mr-2" />
@@ -59,18 +58,7 @@ export default function Terminals({
         ))}
         <Button
           disabled={creatingTerminal}
-          onClick={() => {
-            if (terminals.length >= 4) {
-              toast.error("You reached the maximum # of terminals.");
-              return;
-            }
-            createTerminal({
-              setTerminals,
-              setActiveTerminalId,
-              setCreatingTerminal,
-              socket,
-            });
-          }}
+          onClick={handleCreateTerminal}
           size="smIcon"
           variant={"secondary"}
           className={`font-normal shrink-0 select-none text-muted-foreground disabled:opacity-50`}
@@ -111,4 +99,4 @@ export default function Terminals({
       )}
     </>
   );
-}
+}

frontend/components/editor/terminals/terminal.tsx

@@ -55,7 +55,6 @@ export default function EditorTerminal({
     fitAddon.fit();
 
     const disposableOnData = term.onData((data) => {
-      console.log("terminalData", id, data);
       socket.emit("terminalData", id, data);
     });
 
@@ -74,6 +73,20 @@ export default function EditorTerminal({
     };
   }, [term, terminalRef.current]);
 
+  useEffect(() => {
+    if (!term) return;  
+    const handleTerminalResponse = (response: { id: string; data: string }) => {
+      if (response.id === id) {
+        term.write(response.data);
+      }
+    };
+    socket.on("terminalResponse", handleTerminalResponse);
+  
+    return () => {
+      socket.off("terminalResponse", handleTerminalResponse);
+    };
+  }, [term, id, socket]);
+
   return (
     <>
       <div

frontend/components/ui/popover.tsx

@@ -0,0 +1,33 @@
+"use client"
+
+import * as React from "react"
+import * as PopoverPrimitive from "@radix-ui/react-popover"
+
+import { cn } from "@/lib/utils"
+
+const Popover = PopoverPrimitive.Root
+
+const PopoverTrigger = PopoverPrimitive.Trigger
+
+const PopoverAnchor = PopoverPrimitive.Anchor
+
+const PopoverContent = React.forwardRef<
+  React.ElementRef<typeof PopoverPrimitive.Content>,
+  React.ComponentPropsWithoutRef<typeof PopoverPrimitive.Content>
+>(({ className, align = "center", sideOffset = 4, ...props }, ref) => (
+  <PopoverPrimitive.Portal>
+    <PopoverPrimitive.Content
+      ref={ref}
+      align={align}
+      sideOffset={sideOffset}
+      className={cn(
+        "z-50 w-72 rounded-md border bg-popover p-4 text-popover-foreground shadow-md outline-none data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
+        className
+      )}
+      {...props}
+    />
+  </PopoverPrimitive.Portal>
+))
+PopoverContent.displayName = PopoverPrimitive.Content.displayName
+
+export { Popover, PopoverTrigger, PopoverContent, PopoverAnchor }

frontend/context/PreviewContext.tsx

@@ -0,0 +1,34 @@
+"use client"
+
+import React, { createContext, useContext, useState, useRef } from 'react';
+import { ImperativePanelHandle } from "react-resizable-panels";
+
+interface PreviewContextType {
+  isPreviewCollapsed: boolean;
+  setIsPreviewCollapsed: React.Dispatch<React.SetStateAction<boolean>>;
+  previewURL: string;
+  setPreviewURL: React.Dispatch<React.SetStateAction<string>>;
+  previewPanelRef: React.RefObject<ImperativePanelHandle>;
+}
+
+const PreviewContext = createContext<PreviewContextType | undefined>(undefined);
+
+export const PreviewProvider: React.FC<{ children: React.ReactNode }> = ({ children }) => {
+  const [isPreviewCollapsed, setIsPreviewCollapsed] = useState(true);
+  const [previewURL, setPreviewURL] = useState<string>("");
+  const previewPanelRef = useRef<ImperativePanelHandle>(null);
+
+  return (
+    <PreviewContext.Provider value={{ isPreviewCollapsed, setIsPreviewCollapsed, previewURL, setPreviewURL, previewPanelRef }}>
+      {children}
+    </PreviewContext.Provider>
+  );
+};
+
+export const usePreview = () => {
+  const context = useContext(PreviewContext);
+  if (context === undefined) {
+    throw new Error('usePreview must be used within a PreviewProvider');
+  }
+  return context;
+};

frontend/context/SocketContext.tsx

@@ -0,0 +1,63 @@
+"use client";
+
+import React, { createContext, useContext, useEffect, useState } from 'react';
+import { io, Socket } from 'socket.io-client';
+
+interface SocketContextType {
+  socket: Socket | null;
+  setUserAndSandboxId: (userId: string, sandboxId: string) => void;
+}
+
+const SocketContext = createContext<SocketContextType | undefined>(undefined);
+
+export const SocketProvider: React.FC<{ children: React.ReactNode }> = ({ children }) => {
+  const [socket, setSocket] = useState<Socket | null>(null);
+  const [userId, setUserId] = useState<string | null>(null);
+  const [sandboxId, setSandboxId] = useState<string | null>(null);
+
+  useEffect(() => {
+    if (userId && sandboxId) {
+      console.log("Initializing socket connection...");
+      const newSocket = io(`${process.env.NEXT_PUBLIC_SERVER_URL}?userId=${userId}&sandboxId=${sandboxId}`);
+      console.log("Socket instance:", newSocket);
+      setSocket(newSocket);
+
+      newSocket.on('connect', () => {
+        console.log("Socket connected:", newSocket.id);
+      });
+
+      newSocket.on('disconnect', () => {
+        console.log("Socket disconnected");
+      });
+
+      return () => {
+        console.log("Disconnecting socket...");
+        newSocket.disconnect();
+      };
+    }
+  }, [userId, sandboxId]);
+
+  const setUserAndSandboxId = (newUserId: string, newSandboxId: string) => {
+    setUserId(newUserId);
+    setSandboxId(newSandboxId);
+  };
+
+  const value = {
+    socket,
+    setUserAndSandboxId,
+  };
+
+  return (
+    <SocketContext.Provider value={ value }>
+      {children}
+    </SocketContext.Provider>
+  );
+};
+
+export const useSocket = (): SocketContextType => {
+  const context = useContext(SocketContext);
+  if (!context) {
+    throw new Error('useSocket must be used within a SocketProvider');
+  }
+  return context;
+};

frontend/context/TerminalContext.tsx

@@ -0,0 +1,95 @@
+"use client";
+
+import React, { createContext, useContext, useState } from 'react';
+import { Terminal } from '@xterm/xterm';
+import { createTerminal as createTerminalHelper, closeTerminal as closeTerminalHelper } from '@/lib/terminal';
+import { useSocket } from '@/context/SocketContext';
+
+interface TerminalContextType {
+  terminals: { id: string; terminal: Terminal | null }[];
+  setTerminals: React.Dispatch<React.SetStateAction<{ id: string; terminal: Terminal | null }[]>>;
+  activeTerminalId: string;
+  setActiveTerminalId: React.Dispatch<React.SetStateAction<string>>;
+  creatingTerminal: boolean;
+  setCreatingTerminal: React.Dispatch<React.SetStateAction<boolean>>;
+  createNewTerminal: (command?: string) => Promise<void>;
+  closeTerminal: (id: string) => void;
+  deploy: (callback: () => void) => void;
+}
+
+const TerminalContext = createContext<TerminalContextType | undefined>(undefined);
+
+export const TerminalProvider: React.FC<{ children: React.ReactNode }> = ({ children }) => {
+  const { socket } = useSocket();
+  const [terminals, setTerminals] = useState<{ id: string; terminal: Terminal | null }[]>([]);
+  const [activeTerminalId, setActiveTerminalId] = useState<string>('');
+  const [creatingTerminal, setCreatingTerminal] = useState<boolean>(false);
+
+  const createNewTerminal = async (command?: string): Promise<void> => {
+    if (!socket) return;
+    setCreatingTerminal(true);
+    try {
+      createTerminalHelper({
+        setTerminals,
+        setActiveTerminalId,
+        setCreatingTerminal,
+        command,
+        socket,
+      });
+    } catch (error) {
+      console.error("Error creating terminal:", error);
+    } finally {
+      setCreatingTerminal(false);
+    }
+  };
+
+  const closeTerminal = (id: string) => {
+    if (!socket) return;
+    const terminalToClose = terminals.find(term => term.id === id);
+    if (terminalToClose) {
+      closeTerminalHelper({
+        term: terminalToClose,
+        terminals,
+        setTerminals,
+        setActiveTerminalId,
+        setClosingTerminal: () => {}, 
+        socket,
+        activeTerminalId,
+      });
+    }
+  };
+
+  const deploy = (callback: () => void) => {
+    if (!socket) console.error("Couldn't deploy: No socket");
+    console.log("Deploying...")
+    socket?.emit("deploy", () => {
+      callback();
+    });
+  }
+
+  const value = {
+    terminals,
+    setTerminals,
+    activeTerminalId,
+    setActiveTerminalId,
+    creatingTerminal,
+    setCreatingTerminal,
+    createNewTerminal,
+    closeTerminal,
+    deploy
+  };
+
+  return (
+    <TerminalContext.Provider value={value}>
+      {children}
+    </TerminalContext.Provider>
+  );
+};
+
+export const useTerminal = (): TerminalContextType => {
+  const context = useContext(TerminalContext);
+  if (!context) {
+    throw new Error('useTerminal must be used within a TerminalProvider');
+  }
+  return context;
+};

frontend/lib/terminal.ts

@@ -8,6 +8,7 @@ export const createTerminal = ({
   setTerminals,
   setActiveTerminalId,
   setCreatingTerminal,
+  command,
   socket,
 }: {
   setTerminals: React.Dispatch<React.SetStateAction<{
@@ -16,6 +17,7 @@ export const createTerminal = ({
 }[]>>;
   setActiveTerminalId: React.Dispatch<React.SetStateAction<string>>;
   setCreatingTerminal: React.Dispatch<React.SetStateAction<boolean>>;
+  command?: string;
   socket: Socket;
 
 }) => {
@@ -29,6 +31,7 @@ export const createTerminal = ({
   setTimeout(() => {
     socket.emit("createTerminal", id, () => {
       setCreatingTerminal(false);
+      if (command) socket.emit("terminalData", id, command + "\n");
     });
   }, 1000);
 };

frontend/lib/types.ts

@@ -12,7 +12,7 @@ export type User = {
 export type Sandbox = {
   id: string;
   name: string;
-  type: "react" | "node";
+  type: string;
   visibility: "public" | "private";
   createdAt: Date;
   userId: string;

frontend/lib/utils.ts

@@ -61,3 +61,13 @@ export function addNew(
     ])
   }
 }
+
+export function debounce<T extends (...args: any[]) => void>(func: T, wait: number): T {
+  let timeout: NodeJS.Timeout | null = null;
+  return function (...args: Parameters<T>) {
+      if (timeout) {
+          clearTimeout(timeout);
+      }
+      timeout = setTimeout(() => func(...args), wait);
+  } as T;
+}

frontend/package-lock.json

@@ -24,6 +24,7 @@
         "@radix-ui/react-dropdown-menu": "^2.0.6",
         "@radix-ui/react-icons": "^1.3.0",
         "@radix-ui/react-label": "^2.0.2",
+        "@radix-ui/react-popover": "^1.1.1",
         "@radix-ui/react-select": "^2.0.0",
         "@radix-ui/react-slot": "^1.0.2",
         "@radix-ui/react-switch": "^1.0.3",
@@ -40,6 +41,7 @@
         "monaco-themes": "^0.4.4",
         "next": "14.1.3",
         "next-themes": "^0.3.0",
+        "posthog-js": "^1.147.0",
         "react": "^18.3.1",
         "react-dom": "^18",
         "react-hook-form": "^7.51.3",
@@ -1118,6 +1120,419 @@
         }
       }
     },
+    "node_modules/@radix-ui/react-popover": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/@radix-ui/react-popover/-/react-popover-1.1.1.tgz",
+      "integrity": "sha512-3y1A3isulwnWhvTTwmIreiB8CF4L+qRjZnK1wYLO7pplddzXKby/GnZ2M7OZY3qgnl6p9AodUIHRYGXNah8Y7g==",
+      "dependencies": {
+        "@radix-ui/primitive": "1.1.0",
+        "@radix-ui/react-compose-refs": "1.1.0",
+        "@radix-ui/react-context": "1.1.0",
+        "@radix-ui/react-dismissable-layer": "1.1.0",
+        "@radix-ui/react-focus-guards": "1.1.0",
+        "@radix-ui/react-focus-scope": "1.1.0",
+        "@radix-ui/react-id": "1.1.0",
+        "@radix-ui/react-popper": "1.2.0",
+        "@radix-ui/react-portal": "1.1.1",
+        "@radix-ui/react-presence": "1.1.0",
+        "@radix-ui/react-primitive": "2.0.0",
+        "@radix-ui/react-slot": "1.1.0",
+        "@radix-ui/react-use-controllable-state": "1.1.0",
+        "aria-hidden": "^1.1.1",
+        "react-remove-scroll": "2.5.7"
+      },
+      "peerDependencies": {
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+        "@types/react-dom": "*",
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+      "resolved": "https://registry.npmjs.org/@radix-ui/primitive/-/primitive-1.1.0.tgz",
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+    },
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+        "use-sidecar": "^1.1.2"
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+      "peerDependencies": {
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     "node_modules/@radix-ui/react-popper": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/@radix-ui/react-popper/-/react-popper-1.1.3.tgz",
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frontend/package.json

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     "@radix-ui/react-icons": "^1.3.0",
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     "react-hook-form": "^7.51.3",

package-lock.json

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+    "node_modules/use-sidecar": {
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+      "dependencies": {
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+}

package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "@radix-ui/react-popover": "^1.1.1"
+  }
+}

tests/index.ts

@@ -0,0 +1,47 @@
+// Import necessary modules
+import { io, Socket } from "socket.io-client";
+import dotenv from "dotenv";
+
+dotenv.config();
+
+interface CallbackResponse {
+  success: boolean;
+  apps?: string[];
+  message?: string;
+}
+
+let socketRef: Socket = io(
+  `http://localhost:4000?userId=user_2hFB6KcK6bb3Gx9241UXsxFq4kO&sandboxId=v30a2c48xal03tzio7mapt19`,
+  {
+    timeout: 2000,
+  }
+);
+
+socketRef.on("connect", async () => {
+  console.log("Connected to the server");
+  await new Promise((resolve) => setTimeout(resolve, 1000));
+
+  socketRef.emit("list", (response: CallbackResponse) => {
+    if (response.success) {
+      console.log("List of apps:", response.apps);
+    } else {
+      console.log("Error:", response.message);
+    }
+  });
+
+  socketRef.emit("deploy", (response: CallbackResponse) => {
+    if (response.success) {
+      console.log("It worked!");
+    } else {
+      console.log("Error:", response.message);
+    }
+  });
+});
+
+socketRef.on("disconnect", () => {
+  console.log("Disconnected from the server");
+});
+
+socketRef.on("connect_error", (error: Error) => {
+  console.error("Connection error:", error);
+});

tests/package-lock.json

@@ -0,0 +1,310 @@
+{
+    "name": "socket-io-test",
+    "version": "1.0.0",
+    "lockfileVersion": 3,
+    "requires": true,
+    "packages": {
+        "": {
+            "name": "socket-io-test",
+            "version": "1.0.0",
+            "license": "ISC",
+            "dependencies": {
+                "dotenv": "^16.4.5",
+                "socket.io-client": "^4.7.5",
+                "ts-node": "^10.9.2"
+            }
+        },
+        "node_modules/@cspotcode/source-map-support": {
+            "version": "0.8.1",
+            "resolved": "https://registry.npmjs.org/@cspotcode/source-map-support/-/source-map-support-0.8.1.tgz",
+            "integrity": "sha512-IchNf6dN4tHoMFIn/7OE8LWZ19Y6q/67Bmf6vnGREv8RSbBVb9LPJxEcnwrcwX6ixSvaiGoomAUvu4YSxXrVgw==",
+            "dependencies": {
+                "@jridgewell/trace-mapping": "0.3.9"
+            },
+            "engines": {
+                "node": ">=12"
+            }
+        },
+        "node_modules/@jridgewell/resolve-uri": {
+            "version": "3.1.2",
+            "resolved": "https://registry.npmjs.org/@jridgewell/resolve-uri/-/resolve-uri-3.1.2.tgz",
+            "integrity": "sha512-bRISgCIjP20/tbWSPWMEi54QVPRZExkuD9lJL+UIxUKtwVJA8wW1Trb1jMs1RFXo1CBTNZ/5hpC9QvmKWdopKw==",
+            "engines": {
+                "node": ">=6.0.0"
+            }
+        },
+        "node_modules/@jridgewell/sourcemap-codec": {
+            "version": "1.5.0",
+            "resolved": "https://registry.npmjs.org/@jridgewell/sourcemap-codec/-/sourcemap-codec-1.5.0.tgz",
+            "integrity": "sha512-gv3ZRaISU3fjPAgNsriBRqGWQL6quFx04YMPW/zD8XMLsU32mhCCbfbO6KZFLjvYpCZ8zyDEgqsgf+PwPaM7GQ=="
+        },
+        "node_modules/@jridgewell/trace-mapping": {
+            "version": "0.3.9",
+            "resolved": "https://registry.npmjs.org/@jridgewell/trace-mapping/-/trace-mapping-0.3.9.tgz",
+            "integrity": "sha512-3Belt6tdc8bPgAtbcmdtNJlirVoTmEb5e2gC94PnkwEW9jI6CAHUeoG85tjWP5WquqfavoMtMwiG4P926ZKKuQ==",
+            "dependencies": {
+                "@jridgewell/resolve-uri": "^3.0.3",
+                "@jridgewell/sourcemap-codec": "^1.4.10"
+            }
+        },
+        "node_modules/@socket.io/component-emitter": {
+            "version": "3.1.2",
+            "resolved": "https://registry.npmjs.org/@socket.io/component-emitter/-/component-emitter-3.1.2.tgz",
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+        },
+        "node_modules/@tsconfig/node10": {
+            "version": "1.0.11",
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+        },
+        "node_modules/@tsconfig/node12": {
+            "version": "1.0.11",
+            "resolved": "https://registry.npmjs.org/@tsconfig/node12/-/node12-1.0.11.tgz",
+            "integrity": "sha512-cqefuRsh12pWyGsIoBKJA9luFu3mRxCA+ORZvA4ktLSzIuCUtWVxGIuXigEwO5/ywWFMZ2QEGKWvkZG1zDMTag=="
+        },
+        "node_modules/@tsconfig/node14": {
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+}

tests/package.json

@@ -0,0 +1,21 @@
+{
+    "name": "socket-io-test",
+    "version": "1.0.0",
+    "description": "A test script for socket.io-client using ES6 modules and TypeScript",
+    "main": "dist/index.js",
+    "type": "module",
+    "scripts": {
+        "build": "tsc",
+        "start": "npm run build && node dist/index.js"
+    },
+    "author": "Your Name",
+    "license": "ISC",
+    "dependencies": {
+        "dotenv": "^16.4.5",
+        "socket.io-client": "^4.7.5"
+    },
+    "devDependencies": {
+        "typescript": "^5.0.0",
+        "ts-node": "^10.9.2"
+    }
+}

tests/tsconfig.json

@@ -0,0 +1,13 @@
+{
+    "compilerOptions": {
+      "target": "ESNext",
+      "module": "ESNext",
+      "moduleResolution": "node",
+      "strict": true,
+      "esModuleInterop": true,
+      "skipLibCheck": true,
+      "forceConsistentCasingInFileNames": true,
+      "outDir": "./dist"
+    },
+    "include": ["index.ts"]
+}