dynamic config

packages/dsc-ts/src/dsl/dsl-core.ts

@@ -0,0 +1,48 @@
+import * as S from 'effect/Schema';
+import { ResourceUnion } from '../dsc-resource-schema-types/_resource-union.gen';
+import { Configuration as DscConfiguration } from '../dsc-schema-types/configuration.gen';
+
+const defaultSchemaUri =
+  'https://aka.ms/dsc/schemas/v3/config/document.json' as const;
+
+/**
+ * Enhanced configuration schema with strong typing for resources.
+ * This extends the base DSC Configuration schema but overrides the 'resources'
+ * field with our strongly-typed union of all resources available on this system.
+ */
+export const ConfigurationSchema = S.Struct({
+  ...DscConfiguration.fields,
+  $schema: S.optional(DscConfiguration.fields.$schema).pipe(
+    S.withDefaults({
+      constructor: () => defaultSchemaUri,
+      decoding: () => defaultSchemaUri,
+    }),
+  ),
+  resources: S.Array(ResourceUnion),
+});
+
+export type Configuration = S.Schema.Type<typeof ConfigurationSchema>;
+
+/**
+ * A resource that can be nested in an array.
+ */
+export type UserResource =
+  | S.Schema.Encoded<typeof ResourceUnion>
+  | Array<UserResource>;
+
+/**
+ * The configuration type that the user provides.
+ * This makes fields like $schema optional and allows nested resources.
+ */
+export interface UserConfiguration
+  extends Omit<S.Schema.Encoded<typeof ConfigurationSchema>, 'resources'> {
+  resources: Array<UserResource>;
+}
+
+/**
+ * The configuration can be a plain object or a function that returns the configuration.
+ * The function can be asynchronous.
+ */
+export type ConfigProvider =
+  | UserConfiguration
+  | (() => UserConfiguration | Promise<UserConfiguration>);