chore(debug): envs in api functions

update-dotenv.mjs

@@ -0,0 +1,48 @@
+/**
+ * We define SCANDIC_ENV_URL for stable environments on Netlify:
+ * production, stage and test. Avoid using SCANDIC_ENV_URL locally.
+ * For deployments to those branches we have SCANDIC_ENV_URL defined.
+ * Otherwise we fallback to DEPLOY_PRIME_URL from Netlify built-in variables.
+ * Locally we set DEPLOY_PRIME_URL
+ *
+ * We set NEXTAUTH_URL here because build time environment variables are not
+ * available runtime in Netlify functions. This leads to use being unable to
+ * login on preview deployments.
+ *
+ * This approach updates the .env file in the root of the repo and tells
+ * Netlify to include this file in the bundled function output
+ * (see netlify.toml). This way Next.js will read .env runtime and update the
+ * environment accordingly making the value available at runtime.
+ */
+import fs from "node:fs"
+
+// This is set for stable environments, e.g. test, stage, production
+const SCANDIC_ENV_URL = process.env.SCANDIC_ENV_URL
+
+// This is set for stable environments, e.g. test, stage, production
+let NEXTAUTH_URL = process.env.NEXTAUTH_URL
+
+// This is used for preview deployments
+const DEPLOY_PRIME_URL = process.env.DEPLOY_PRIME_URL
+
+const URL = SCANDIC_ENV_URL || DEPLOY_PRIME_URL
+
+if (!NEXTAUTH_URL) {
+  NEXTAUTH_URL = URL + "/api/web/auth"
+}
+
+let contents = fs.readFileSync("./.env", { encoding: "utf-8" })
+
+contents = contents.replace(
+  // 'URL="REPLACEME-ON-BUILD-ON-NETLIFY"',
+  /URL="[^"]+"/,
+  `URL="${URL}"`
+)
+
+contents = contents.replace(
+  // 'NEXTAUTH_URL="REPLACEME-ON-BUILD-ON-NETLIFY"',
+  /NEXTAUTH_URL="[^"]+"/,
+  `NEXTAUTH_URL="${NEXTAUTH_URL}"`
+)
+
+fs.writeFileSync("./.env", contents, { encoding: "utf-8" })