env

lib/env.ts

@@ -0,0 +1,75 @@
+import './load-env';
+import { z } from 'zod';
+
+/**
+ * Environment variable schema.
+ * This ensures the application has all required configuration at startup.
+ */
+const envSchema = z.object({
+  NODE_ENV: z.enum(['development', 'production', 'test']).default('development'),
+  NEXT_PUBLIC_BASE_URL: z.string().url().default('http://localhost:3000'),
+  
+  // 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'),
+  
+  // Error Tracking
+  SENTRY_DSN: z.string().optional(),
+  
+  // Cache
+  REDIS_URL: z.string().optional(),
+  REDIS_KEY_PREFIX: 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) || []),
+});
+
+export type Env = z.infer<typeof envSchema>;
+
+/**
+ * Helper to get environment variables.
+ * On the client, only NEXT_PUBLIC_ variables are available.
+ * On the server, all variables are available.
+ */
+function getRawEnv() {
+  if (typeof window !== 'undefined') {
+    // Client-side: only return NEXT_PUBLIC_ variables
+    // We must explicitly reference them for Next.js inlining to work
+    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 from process.env
+  return {
+    NODE_ENV: process.env.NODE_ENV,
+    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,
+    SENTRY_DSN: process.env.SENTRY_DSN,
+    REDIS_URL: process.env.REDIS_URL,
+    REDIS_KEY_PREFIX: process.env.REDIS_KEY_PREFIX,
+    LOG_LEVEL: process.env.LOG_LEVEL,
+    MAIL_HOST: process.env.MAIL_HOST,
+    MAIL_PORT: process.env.MAIL_PORT,
+    MAIL_USERNAME: process.env.MAIL_USERNAME,
+    MAIL_PASSWORD: process.env.MAIL_PASSWORD,
+    MAIL_FROM: process.env.MAIL_FROM,
+    MAIL_RECIPIENTS: process.env.MAIL_RECIPIENTS,
+  };
+}
+
+/**
+ * Validated environment variables.
+ */
+export const env = envSchema.parse(getRawEnv());