export more api (#3723)

- export more apis from http-client-csharp library so that those api can
be used in follow-up emitter.
- change NetEmitterOptions to interface: it can be extended; consistent
with others e.g. SdkEmitterOptions; it can used as partial scenario to
add more fields which may more suitable for plugin framework.

packages/http-client-csharp/emitter/src/index.ts

@@ -1,4 +1,15 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License. See License.txt in the project root for license information.
 
+export { configurationFileName, tspOutputFileName } from "./constants.js";
 export * from "./emitter.js";
+export { createDiagnostic, getTracer, reportDiagnostic } from "./lib/lib.js";
+export { LoggerLevel } from "./lib/log-level.js";
+export { Logger } from "./lib/logger.js";
+export {
+  NetEmitterOptions,
+  NetEmitterOptionsSchema,
+  defaultOptions,
+  resolveOptions,
+  resolveOutputFolder,
+} from "./options.js";

packages/http-client-csharp/emitter/src/options.ts

@@ -3,7 +3,7 @@ import { EmitContext, JSONSchemaType, resolvePath } from "@typespec/compiler";
 import { tspOutputFileName } from "./constants.js";
 import { LoggerLevel } from "./lib/log-level.js";
 
-export type NetEmitterOptions = {
+export interface NetEmitterOptions extends SdkEmitterOptions {
   "api-version"?: string;
   outputFile?: string;
   logFile?: string;
@@ -32,7 +32,7 @@ export type NetEmitterOptions = {
   "use-model-reader-writer"?: boolean;
   "disable-xml-docs"?: boolean;
   "plugin-name"?: string;
-} & SdkEmitterOptions;
+}
 
 export const NetEmitterOptionsSchema: JSONSchemaType<NetEmitterOptions> = {
   type: "object",
@@ -109,7 +109,7 @@ export const NetEmitterOptionsSchema: JSONSchemaType<NetEmitterOptions> = {
   required: [],
 };
 
-const defaultOptions = {
+export const defaultOptions = {
   "api-version": "latest",
   outputFile: tspOutputFileName,
   logFile: "log.json",