Parse backend environment, expose more settings

packages/backend/src/config.ts

@@ -0,0 +1,33 @@
+import { pipe, Schema } from "effect";
+import { constant } from "effect/Function";
+
+/* NOTE I know "effect/Config" exists, but I also don't care. This works for me. */
+
+export const Config = Schema.Struct({
+	CLIENT_ID: Schema.UUID,
+	CLIENT_SECRET: pipe(
+		Schema.String,
+		Schema.Redacted,
+	),
+	DB_PATH: pipe(
+		Schema.String,
+		Schema.optional,
+	),
+	NODE_ENV: pipe(
+		Schema.Literal("development", "production"),
+		Schema.optionalWith({ default: constant("development" as const) }),
+	),
+	PORT: pipe(
+		Schema.NumberFromString,
+		Schema.optionalWith({ default: constant(3000) }),
+	),
+	TENANT_ID: Schema.UUID,
+	TENANT_SUBDOMAIN: Schema.String,
+});
+
+export type Config = typeof Config.Type;
+
+export const config = pipe(
+	process.env,
+	Schema.decodeUnknownSync(Config),
+);