feat(experimentalIdentityAndAuth): add HttpAuthExtensionConfiguration

Add code-generation for `HttpAuthExtensionConfiguration`, which allows
configuring:

- `httpAuthSchemes`
- `httpAuthSchemeProvider`
- Any `ConfigField` registered by `HttpAuthScheme`s

Also, add relative import dependencies for:

- `httpAuthSchemeProvider`
- `httpAuthExtensionConfiguration`

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/RuntimeConfigGenerator.java

@@ -15,7 +15,6 @@
 
 package software.amazon.smithy.typescript.codegen;
 
-import java.nio.file.Paths;
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
@@ -32,7 +31,6 @@
 import software.amazon.smithy.model.shapes.ShapeId;
 import software.amazon.smithy.typescript.codegen.auth.AuthUtils;
 import software.amazon.smithy.typescript.codegen.auth.http.HttpAuthScheme;
-import software.amazon.smithy.typescript.codegen.auth.http.HttpAuthSchemeProviderGenerator;
 import software.amazon.smithy.typescript.codegen.auth.http.SupportedHttpAuthSchemesIndex;
 import software.amazon.smithy.typescript.codegen.integration.TypeScriptIntegration;
 import software.amazon.smithy.utils.MapUtils;
@@ -212,9 +210,7 @@ private void generateHttpAuthSchemeConfig(
         if (target.equals(LanguageTarget.SHARED)) {
             configs.put("httpAuthSchemeProvider", w -> {
                 String providerName = "default" + service.toShapeId().getName() + "HttpAuthSchemeProvider";
-                w.addRelativeImport(providerName, null, Paths.get(".", CodegenUtils.SOURCE_FOLDER,
-                    HttpAuthSchemeProviderGenerator.HTTP_AUTH_FOLDER,
-                    HttpAuthSchemeProviderGenerator.HTTP_AUTH_SCHEME_RESOLVER_MODULE));
+                w.addImport(providerName, null, AuthUtils.AUTH_HTTP_PROVIDER_DEPENDENCY);
                 w.write(providerName);
             });
         }

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/ServiceBareBonesClientGenerator.java

@@ -32,7 +32,7 @@
 import software.amazon.smithy.model.shapes.OperationShape;
 import software.amazon.smithy.model.shapes.ServiceShape;
 import software.amazon.smithy.rulesengine.traits.EndpointRuleSetTrait;
-import software.amazon.smithy.typescript.codegen.auth.http.HttpAuthSchemeProviderGenerator;
+import software.amazon.smithy.typescript.codegen.auth.AuthUtils;
 import software.amazon.smithy.typescript.codegen.auth.http.integration.HttpAuthTypeScriptIntegration;
 import software.amazon.smithy.typescript.codegen.integration.RuntimeClientPlugin;
 import software.amazon.smithy.typescript.codegen.integration.TypeScriptIntegration;
@@ -313,10 +313,7 @@ private void generateClientDefaults() {
                 writer.write("httpAuthSchemes?: HttpAuthScheme[];\n");
 
                 String httpAuthSchemeProviderName = service.toShapeId().getName() + "HttpAuthSchemeProvider";
-                writer.addRelativeImport(httpAuthSchemeProviderName, null, Paths.get(".",
-                    CodegenUtils.SOURCE_FOLDER,
-                    HttpAuthSchemeProviderGenerator.HTTP_AUTH_FOLDER,
-                    HttpAuthSchemeProviderGenerator.HTTP_AUTH_SCHEME_RESOLVER_MODULE));
+                writer.addImport(httpAuthSchemeProviderName, null, AuthUtils.AUTH_HTTP_PROVIDER_DEPENDENCY);
                 writer.writeDocs("""
                     experimentalIdentityAndAuth: Configuration of an HttpAuthSchemeProvider for a client which \
                     resolves which HttpAuthScheme to use.

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/auth/AuthUtils.java

@@ -5,12 +5,18 @@
 
 package software.amazon.smithy.typescript.codegen.auth;
 
+import java.nio.file.Paths;
+import java.util.Collections;
+import java.util.List;
 import java.util.Map;
 import java.util.TreeMap;
+import software.amazon.smithy.codegen.core.SymbolDependency;
 import software.amazon.smithy.model.knowledge.ServiceIndex;
 import software.amazon.smithy.model.knowledge.ServiceIndex.AuthSchemeMode;
 import software.amazon.smithy.model.shapes.ServiceShape;
 import software.amazon.smithy.model.shapes.ShapeId;
+import software.amazon.smithy.typescript.codegen.CodegenUtils;
+import software.amazon.smithy.typescript.codegen.Dependency;
 import software.amazon.smithy.typescript.codegen.auth.http.HttpAuthScheme;
 import software.amazon.smithy.typescript.codegen.auth.http.SupportedHttpAuthSchemesIndex;
 import software.amazon.smithy.utils.SmithyInternalApi;
@@ -20,6 +26,54 @@
  */
 @SmithyInternalApi
 public final class AuthUtils {
+    public static final String HTTP_AUTH_FOLDER = "auth";
+
+    public static final String HTTP_AUTH_SCHEME_PROVIDER_MODULE = "httpAuthSchemeProvider";
+
+    public static final String HTTP_AUTH_SCHEME_PROVIDER_FILE =
+        HTTP_AUTH_SCHEME_PROVIDER_MODULE + ".ts";
+
+    public static final String HTTP_AUTH_SCHEME_PROVIDER_PATH =
+        Paths.get(".", CodegenUtils.SOURCE_FOLDER, HTTP_AUTH_FOLDER, HTTP_AUTH_SCHEME_PROVIDER_FILE).toString();
+
+    public static final Dependency AUTH_HTTP_PROVIDER_DEPENDENCY = new Dependency() {
+        @Override
+        public String getPackageName() {
+            return Paths.get(
+                ".", CodegenUtils.SOURCE_FOLDER,
+                HTTP_AUTH_FOLDER, HTTP_AUTH_SCHEME_PROVIDER_MODULE
+            ).toString();
+        }
+
+        @Override
+        public List<SymbolDependency> getDependencies() {
+            return Collections.emptyList();
+        }
+    };
+
+    public static final String HTTP_AUTH_SCHEME_EXTENSION_MODULE = "httpAuthExtensionConfiguration";
+
+    public static final String HTTP_AUTH_SCHEME_EXTENSION_FILE =
+        HTTP_AUTH_SCHEME_EXTENSION_MODULE + ".ts";
+
+    public static final String HTTP_AUTH_SCHEME_EXTENSION_PATH =
+        Paths.get(".", CodegenUtils.SOURCE_FOLDER, HTTP_AUTH_FOLDER, HTTP_AUTH_SCHEME_EXTENSION_FILE).toString();
+
+    public static final Dependency AUTH_HTTP_EXTENSION_DEPENDENCY = new Dependency() {
+        @Override
+        public String getPackageName() {
+            return Paths.get(
+                ".", CodegenUtils.SOURCE_FOLDER,
+                HTTP_AUTH_FOLDER, HTTP_AUTH_SCHEME_EXTENSION_MODULE
+            ).toString();
+        }
+
+        @Override
+        public List<SymbolDependency> getDependencies() {
+            return Collections.emptyList();
+        }
+    };
+
     private AuthUtils() {}
 
     public static Map<ShapeId, HttpAuthScheme> getAllEffectiveNoAuthAwareAuthSchemes(

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/auth/http/HttpAuthSchemeProviderGenerator.java

@@ -41,20 +41,6 @@
  */
 @SmithyInternalApi
 public class HttpAuthSchemeProviderGenerator implements Runnable {
-    /**
-     * Directory segment for {@code auth/}.
-     */
-    public static final String HTTP_AUTH_FOLDER = "auth";
-    /**
-     * File name segment for {@code httpAuthSchemeProvder}.
-     */
-    public static final String HTTP_AUTH_SCHEME_RESOLVER_MODULE = "httpAuthSchemeProvider";
-
-    private static final String HTTP_AUTH_SCHEME_RESOLVER_FILE =
-        HTTP_AUTH_SCHEME_RESOLVER_MODULE + ".ts";
-    private static final String HTTP_AUTH_SCHEME_RESOLVER_PATH =
-        Paths.get(CodegenUtils.SOURCE_FOLDER, HTTP_AUTH_FOLDER, HTTP_AUTH_SCHEME_RESOLVER_FILE).toString();
-
     private final TypeScriptDelegator delegator;
     private final Model model;
 
@@ -104,7 +90,7 @@ export interface WeatherHttpAuthSchemeParameters {
     }
     */
     private void generateHttpAuthSchemeParametersInterface() {
-        delegator.useFileWriter(HTTP_AUTH_SCHEME_RESOLVER_PATH.toString(), w -> {
+        delegator.useFileWriter(AuthUtils.HTTP_AUTH_SCHEME_PROVIDER_PATH, w -> {
             w.openBlock("""
                 /**
                  * @internal
@@ -138,7 +124,7 @@ export async function defaultWeatherHttpAuthSchemeParametersProvider(
     };
     */
     private void generateDefaultHttpAuthSchemeParametersProviderFunction() {
-        delegator.useFileWriter(HTTP_AUTH_SCHEME_RESOLVER_PATH.toString(), w -> {
+        delegator.useFileWriter(AuthUtils.HTTP_AUTH_SCHEME_PROVIDER_PATH, w -> {
             w.addRelativeImport(serviceSymbol.getName() + "ResolvedConfig", null,
                 Paths.get(".", serviceSymbol.getNamespace()));
             w.addImport("HandlerExecutionContext", null, TypeScriptDependency.SMITHY_TYPES);
@@ -190,7 +176,7 @@ function createSmithyApiHttpApiKeyAuthHttpAuthOption(authParameters: WeatherHttp
     };
     */
     private void generateHttpAuthOptionFunction(ShapeId shapeId, HttpAuthScheme authScheme) {
-        delegator.useFileWriter(HTTP_AUTH_SCHEME_RESOLVER_PATH.toString(), w -> {
+        delegator.useFileWriter(AuthUtils.HTTP_AUTH_SCHEME_PROVIDER_PATH, w -> {
             String normalizedAuthSchemeName = normalizeAuthSchemeName(shapeId);
             w.addDependency(TypeScriptDependency.EXPERIMENTAL_IDENTITY_AND_AUTH);
             w.addImport("HttpAuthOption", null, TypeScriptDependency.EXPERIMENTAL_IDENTITY_AND_AUTH);
@@ -242,7 +228,7 @@ export interface WeatherHttpAuthSchemeProvider {
     }
     */
     private void generateHttpAuthSchemeProviderInterface() {
-        delegator.useFileWriter(HTTP_AUTH_SCHEME_RESOLVER_PATH.toString(), w -> {
+        delegator.useFileWriter(AuthUtils.HTTP_AUTH_SCHEME_PROVIDER_PATH, w -> {
             w.write("""
             /**
              * @internal
@@ -267,7 +253,7 @@ export function defaultWeatherHttpAuthSchemeProvider(authParameters: WeatherHttp
     };
     */
     private void generateHttpAuthSchemeProviderDefaultFunction() {
-        delegator.useFileWriter(HTTP_AUTH_SCHEME_RESOLVER_PATH.toString(), w -> {
+        delegator.useFileWriter(AuthUtils.HTTP_AUTH_SCHEME_PROVIDER_PATH, w -> {
             w.openBlock("""
             /**
              * @internal

smithy-typescript-codegen/src/main/java/software/amazon/smithy/typescript/codegen/auth/http/integration/HttpAuthExtensionConfigurationInterface.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+package software.amazon.smithy.typescript.codegen.auth.http.integration;
+
+import software.amazon.smithy.typescript.codegen.Dependency;
+import software.amazon.smithy.typescript.codegen.auth.AuthUtils;
+import software.amazon.smithy.typescript.codegen.extensions.ExtensionConfigurationInterface;
+import software.amazon.smithy.utils.Pair;
+import software.amazon.smithy.utils.SmithyInternalApi;
+
+/**
+ * Adds the corresponding interface and functions for {@code HttpAuthExtensionConfiguration}.
+ *
+ * This is experimental for `experimentalIdentityAndAuth`.
+ */
+@SmithyInternalApi
+public class HttpAuthExtensionConfigurationInterface implements ExtensionConfigurationInterface {
+    @Override
+    public Pair<String, Dependency> name() {
+        return Pair.of("HttpAuthExtensionConfiguration", AuthUtils.AUTH_HTTP_EXTENSION_DEPENDENCY);
+    }
+
+    @Override
+    public Pair<String, Dependency> getExtensionConfigurationFn() {
+        return Pair.of("getHttpAuthExtensionConfiguration", AuthUtils.AUTH_HTTP_EXTENSION_DEPENDENCY);
+    }
+
+    @Override
+    public Pair<String, Dependency> resolveRuntimeConfigFn() {
+        return Pair.of("resolveHttpAuthRuntimeConfig", AuthUtils.AUTH_HTTP_EXTENSION_DEPENDENCY);
+    }
+}