refactor: replace NEXTAUTH environment variables with CLERK

This commit introduces the Clerk authentication service to the project.
It replaces the NEXTAUTH environment variables with the new Clerk
environment variables. The following commits will structure the
Clerk authentication service and the implementation in the `@louffee/auth`
internal package.

This commit is part of the issue #2.

Author: mrlemoos

.env.example

@@ -17,8 +17,6 @@ CLOUDFLARE_UPLOAD_BUCKET_ID="<bucket_id>"
 CLOUDFLARE_UPLOAD_BUCKET_NAME="louffee-dev-upload"
 CLOUDFLARE_STORAGE_BUCKET_NAME="louffee-dev"
 
-# Next Auth environment variables
-NEXTAUTH_URL="http://localhost:3000"
-NEXTAUTH_SECRET="<secret>"
-GOOGLE_CLIENT_ID="<google_client_id>"
-GOOGLE_CLIENT_SECRET="<google_client_secret>"
+# Clerk (Auth service) environment variables
+NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY="<clerk_publishable_key>"
+CLERK_SECRET_KEY="<clerk_secret_key>

packages/env/src/env.ts

@@ -1,13 +1,7 @@
-import path from 'node:path'
-
-import dotenv from 'dotenv'
 import { z } from 'zod'
+import loadEnvironment from './load-environment'
 
-dotenv.config({
-  encoding: 'UTF-8',
-  debug: true,
-  path: path.resolve(process.cwd(), '..', '..', '.env'),
-})
+loadEnvironment()
 
 /**
  * The object which defines the environment key names.
@@ -46,11 +40,16 @@ const environmentKeyMap = {
       name: 'CLOUDFLARE_STORAGE_BUCKET_NAME',
     },
   },
-  nextAuth: {
-    secret: 'NEXTAUTH_SECRET',
-    URL: 'NEXTAUTH_URL',
+  clerkJS: {
+    secret: {
+      key: 'CLERK_SECRET_KEY',
+    },
     public: {
-      nextAuthURL: 'NEXT_PUBLIC_NEXTAUTH_URL',
+      publishableKey: 'NEXT_PUBLIC_CLERK_PUBLISHABLE_KEY',
+      signInURL: 'NEXT_PUBLIC_CLERK_SIGN_IN_URL',
+      signUpURL: 'NEXT_PUBLIC_CLERK_SIGN_UP_URL',
+      afterSignInURL: 'NEXT_PUBLIC_CLERK_AFTER_SIGN_IN_URL',
+      afterSignUpURL: 'NEXT_PUBLIC_CLERK_AFTER_SIGN_UP_URL',
     },
   },
   googleClient: {
@@ -101,9 +100,12 @@ const EnvironmentVariablesSchema = z.object({
   [environmentKeyMap.cloudflare.uploadBucket.name]: z.string().default('<upload_bucket_name>'),
   [environmentKeyMap.cloudflare.storage.name]: z.string().default('<storage_bucket_name>'),
 
-  [environmentKeyMap.nextAuth.secret]: z.string().default('<nextauth_secret>'),
-  [environmentKeyMap.nextAuth.URL]: z.string().default('http://localhost:3000'),
-  [environmentKeyMap.nextAuth.public.nextAuthURL]: z.string().default('http://localhost:3000'),
+  [environmentKeyMap.clerkJS.secret.key]: z.string().default('<clerk_secret_key>'),
+  [environmentKeyMap.clerkJS.public.publishableKey]: z.string().default('<clerk_publishable_key>'),
+  [environmentKeyMap.clerkJS.public.signInURL]: z.string().default('<clerk_sign_in_url>'),
+  [environmentKeyMap.clerkJS.public.signUpURL]: z.string().default('<clerk_sign_up_url>'),
+  [environmentKeyMap.clerkJS.public.afterSignInURL]: z.string().default('<clerk_after_sign_in_url>'),
+  [environmentKeyMap.clerkJS.public.afterSignUpURL]: z.string().default('<clerk_after_sign_up_url>'),
 
   [environmentKeyMap.googleClient.id]: z.string().default('<google_client_id>'),
   [environmentKeyMap.googleClient.secret]: z.string().default('<google_client_secret>'),