env

Dockerfile

@@ -32,6 +32,9 @@ ENV NEXT_PUBLIC_UMAMI_SCRIPT_URL=$NEXT_PUBLIC_UMAMI_SCRIPT_URL
 ENV SENTRY_DSN=$SENTRY_DSN
 ENV NEXT_PUBLIC_BASE_URL=$NEXT_PUBLIC_BASE_URL
 
+# Validate environment variables during build
+RUN npx tsx scripts/validate-env.ts
+
 RUN npm run build
 
 # Production image, copy all the files and run next

instrumentation.ts

@@ -13,6 +13,9 @@ export async function register() {
     
     // Initialize server services on boot
     // We do this AFTER Sentry to ensure errors during service init are caught
+    const { getConfig } = await import('@/lib/config');
+    getConfig(); // Trigger validation
+    
     const { getServerAppServices } = await import('@/lib/services/create-services.server');
     getServerAppServices();
   }

lib/config.ts

@@ -2,9 +2,18 @@
  * Centralized configuration management for the application.
  * This file provides a type-safe way to access environment variables.
  */
-import { env } from './env';
+import { envSchema, getRawEnv } from './env';
 
-export const config = {
+let memoizedConfig: ReturnType<typeof createConfig> | undefined;
+
+/**
+ * Creates and validates the configuration object.
+ * Throws if validation fails.
+ */
+function createConfig() {
+  const env = envSchema.parse(getRawEnv());
+
+  return {
     env: env.NODE_ENV,
     isProduction: env.NODE_ENV === 'production',
     isDevelopment: env.NODE_ENV === 'development',
@@ -52,46 +61,76 @@ export const config = {
       from: env.MAIL_FROM,
       recipients: env.MAIL_RECIPIENTS,
     },
-} as const;
+  } as const;
+}
+
+/**
+ * Returns the validated configuration.
+ * Memoizes the result after the first call.
+ */
+export function getConfig() {
+  if (!memoizedConfig) {
+    memoizedConfig = createConfig();
+  }
+  return memoizedConfig;
+}
+
+/**
+ * Exported config object for convenience.
+ * Uses getters to ensure it's only initialized when accessed.
+ */
+export const config = {
+  get env() { return getConfig().env; },
+  get isProduction() { return getConfig().isProduction; },
+  get isDevelopment() { return getConfig().isDevelopment; },
+  get isTest() { return getConfig().isTest; },
+  get baseUrl() { return getConfig().baseUrl; },
+  get analytics() { return getConfig().analytics; },
+  get errors() { return getConfig().errors; },
+  get cache() { return getConfig().cache; },
+  get logging() { return getConfig().logging; },
+  get mail() { return getConfig().mail; },
+};
 
 /**
  * Helper to get a masked version of the config for logging.
  */
 export function getMaskedConfig() {
+  const c = getConfig();
   const mask = (val: string | undefined) => (val ? `***${val.slice(-4)}` : 'not set');
 
   return {
-    env: config.env,
-    baseUrl: config.baseUrl,
+    env: c.env,
+    baseUrl: c.baseUrl,
     analytics: {
       umami: {
-        websiteId: mask(config.analytics.umami.websiteId),
-        scriptUrl: config.analytics.umami.scriptUrl,
-        enabled: config.analytics.umami.enabled,
+        websiteId: mask(c.analytics.umami.websiteId),
+        scriptUrl: c.analytics.umami.scriptUrl,
+        enabled: c.analytics.umami.enabled,
       },
     },
     errors: {
       glitchtip: {
-        dsn: mask(config.errors.glitchtip.dsn),
-        enabled: config.errors.glitchtip.enabled,
+        dsn: mask(c.errors.glitchtip.dsn),
+        enabled: c.errors.glitchtip.enabled,
       },
     },
     cache: {
       redis: {
-        url: mask(config.cache.redis.url),
-        keyPrefix: config.cache.redis.keyPrefix,
-        enabled: config.cache.redis.enabled,
+        url: mask(c.cache.redis.url),
+        keyPrefix: c.cache.redis.keyPrefix,
+        enabled: c.cache.redis.enabled,
       },
     },
     logging: {
-      level: config.logging.level,
+      level: c.logging.level,
     },
     mail: {
-      host: config.mail.host,
-      port: config.mail.port,
-      user: mask(config.mail.user),
-      from: config.mail.from,
-      recipients: config.mail.recipients,
+      host: c.mail.host,
+      port: c.mail.port,
+      user: mask(c.mail.user),
+      from: c.mail.from,
+      recipients: c.mail.recipients,
     },
   };
 }

lib/env.ts

@@ -1,51 +1,50 @@
 import { z } from 'zod';
 
+/**
+ * Helper to treat empty strings as undefined.
+ */
+const preprocessEmptyString = (val: unknown) => (val === '' ? undefined : val);
+
 /**
  * Environment variable schema.
  */
-const envSchema = z.object({
+export const envSchema = z.object({
   NODE_ENV: z.enum(['development', 'production', 'test']).default('development'),
-  NEXT_PUBLIC_BASE_URL: z.string().url().default('http://localhost:3000'),
+  NEXT_PUBLIC_BASE_URL: z.preprocess(preprocessEmptyString, z.string().url()),
   
   // Analytics
-  NEXT_PUBLIC_UMAMI_WEBSITE_ID: z.string().optional(),
-  NEXT_PUBLIC_UMAMI_SCRIPT_URL: z.string().url().default('https://analytics.infra.mintel.me/script.js'),
+  NEXT_PUBLIC_UMAMI_WEBSITE_ID: z.preprocess(preprocessEmptyString, z.string().optional()),
+  NEXT_PUBLIC_UMAMI_SCRIPT_URL: z.preprocess(preprocessEmptyString, z.string().url().default('https://analytics.infra.mintel.me/script.js')),
   
   // Error Tracking
-  SENTRY_DSN: z.string().optional(),
+  SENTRY_DSN: z.preprocess(preprocessEmptyString, z.string().optional()),
   
   // Cache
-  REDIS_URL: z.string().optional(),
-  REDIS_KEY_PREFIX: z.string().default('klz:'),
+  REDIS_URL: z.preprocess(preprocessEmptyString, z.string().optional()),
+  REDIS_KEY_PREFIX: z.preprocess(preprocessEmptyString, z.string().default('klz:')),
   
   // Logging
   LOG_LEVEL: z.enum(['debug', 'info', 'warn', 'error']).default('info'),
   
   // Mail
-  MAIL_HOST: z.string().optional(),
-  MAIL_PORT: z.coerce.number().default(587),
-  MAIL_USERNAME: z.string().optional(),
-  MAIL_PASSWORD: z.string().optional(),
-  MAIL_FROM: z.string().optional(),
-  MAIL_RECIPIENTS: z.string().optional().transform(val => val?.split(',').filter(Boolean) || []),
+  MAIL_HOST: z.preprocess(preprocessEmptyString, z.string().optional()),
+  MAIL_PORT: z.preprocess(preprocessEmptyString, z.coerce.number().default(587)),
+  MAIL_USERNAME: z.preprocess(preprocessEmptyString, z.string().optional()),
+  MAIL_PASSWORD: z.preprocess(preprocessEmptyString, z.string().optional()),
+  MAIL_FROM: z.preprocess(preprocessEmptyString, z.string().optional()),
+  MAIL_RECIPIENTS: z.preprocess(
+    (val) => (typeof val === 'string' ? val.split(',').filter(Boolean) : val),
+    z.array(z.string()).default([])
+  ),
 });
 
+export type Env = z.infer<typeof envSchema>;
+
 /**
- * Helper to get environment variables.
+ * Collects all environment variables from the process.
+ * Explicitly references NEXT_PUBLIC_ variables for Next.js inlining.
  */
-function getRawEnv() {
-  const isServer = typeof window === 'undefined';
-
-  if (!isServer) {
-    // Client-side: only return NEXT_PUBLIC_ variables
-    return {
-      NEXT_PUBLIC_BASE_URL: process.env.NEXT_PUBLIC_BASE_URL,
-      NEXT_PUBLIC_UMAMI_WEBSITE_ID: process.env.NEXT_PUBLIC_UMAMI_WEBSITE_ID,
-      NEXT_PUBLIC_UMAMI_SCRIPT_URL: process.env.NEXT_PUBLIC_UMAMI_SCRIPT_URL,
-    };
-  }
-
-  // Server-side: return all variables
+export function getRawEnv() {
   return {
     NODE_ENV: process.env.NODE_ENV,
     NEXT_PUBLIC_BASE_URL: process.env.NEXT_PUBLIC_BASE_URL,
@@ -63,14 +62,3 @@ function getRawEnv() {
     MAIL_RECIPIENTS: process.env.MAIL_RECIPIENTS,
   };
 }
-
-/**
- * Validated environment variables.
- * We use safeParse during build to avoid crashing the build process.
- */
-const isBuildTime = process.env.NEXT_PHASE === 'phase-production-build';
-const parsed = isBuildTime 
-  ? envSchema.safeParse(getRawEnv())
-  : { success: true, data: envSchema.parse(getRawEnv()) };
-
-export const env = parsed.success ? parsed.data : envSchema.parse({});

package-lock.json

@@ -17,7 +17,6 @@
         "axios": "^1.13.2",
         "cheerio": "^1.1.2",
         "clsx": "^2.1.1",
-        "dotenv": "^17.2.3",
         "framer-motion": "^12.27.1",
         "gray-matter": "^4.0.3",
         "i18next": "^25.7.3",
@@ -9406,18 +9405,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/dotenv": {
-      "version": "17.2.3",
-      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.2.3.tgz",
-      "integrity": "sha512-JVUnt+DUIzu87TABbhPmNfVdBDt18BLOWjMUFJMSi/Qqg7NTYtabbvSNJGOJ7afbRuv9D/lngizHtP7QyLQ+9w==",
-      "license": "BSD-2-Clause",
-      "engines": {
-        "node": ">=12"
-      },
-      "funding": {
-        "url": "https://dotenvx.com"
-      }
-    },
     "node_modules/dunder-proto": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",

package.json

@@ -9,7 +9,6 @@
     "axios": "^1.13.2",
     "cheerio": "^1.1.2",
     "clsx": "^2.1.1",
-    "dotenv": "^17.2.3",
     "framer-motion": "^12.27.1",
     "gray-matter": "^4.0.3",
     "i18next": "^25.7.3",

scripts/validate-env.ts

@@ -0,0 +1,17 @@
+import { envSchema, getRawEnv } from '../lib/env';
+
+/**
+ * Simple script to validate environment variables.
+ * If validation fails, this script will exit with code 1.
+ */
+try {
+  const env = envSchema.parse(getRawEnv());
+  console.log('✅ Environment variables validated successfully.');
+  console.log('Base URL:', env.NEXT_PUBLIC_BASE_URL);
+} catch (error) {
+  console.error('❌ Environment validation failed.');
+  if (error instanceof Error) {
+    console.error(error.message);
+  }
+  process.exit(1);
+}