refactor: env validation typescript and common package (#1912)

packages/common/env.ts

@@ -0,0 +1,29 @@
+import { randomBytes } from "crypto";
+import { createEnv } from "@t3-oss/env-nextjs";
+import { z } from "zod";
+
+import { shouldSkipEnvValidation } from "./src/env-validation";
+
+const errorSuffix = `, please generate a 64 character secret in hex format or use the following: "${randomBytes(32).toString("hex")}"`;
+
+export const env = createEnv({
+  server: {
+    SECRET_ENCRYPTION_KEY: z
+      .string({
+        required_error: `SECRET_ENCRYPTION_KEY is required${errorSuffix}`,
+      })
+      .min(64, {
+        message: `SECRET_ENCRYPTION_KEY has to be 64 characters${errorSuffix}`,
+      })
+      .max(64, {
+        message: `SECRET_ENCRYPTION_KEY has to be 64 characters${errorSuffix}`,
+      })
+      .regex(/^[0-9a-fA-F]{64}$/, {
+        message: `SECRET_ENCRYPTION_KEY must only contain hex characters${errorSuffix}`,
+      }),
+  },
+  runtimeEnv: {
+    SECRET_ENCRYPTION_KEY: process.env.SECRET_ENCRYPTION_KEY,
+  },
+  skipValidation: shouldSkipEnvValidation(),
+});