[Response Ops][Rules] Version Get Rule Types API (elastic#195361)

## Summary

`GET /api/alerting/rule_types` item in
elastic#195181

x-pack/plugins/alerting/common/routes/rule/apis/list_types/index.ts

@@ -0,0 +1,18 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export { typesRulesResponseSchema, typesRulesResponseBodySchema } from './schemas/latest';
+export type { TypesRulesResponse, TypesRulesResponseBody } from './types/latest';
+
+export {
+  typesRulesResponseSchema as typesRulesResponseSchemaV1,
+  typesRulesResponseBodySchema as typesRulesResponseBodySchemaV1,
+} from './schemas/v1';
+export type {
+  TypesRulesResponse as TypesRulesResponseV1,
+  TypesRulesResponseBody as TypesRulesResponseBodyV1,
+} from './types/v1';

x-pack/plugins/alerting/common/routes/rule/apis/list_types/schemas/latest.ts

@@ -0,0 +1,8 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export * from './v1';

x-pack/plugins/alerting/common/routes/rule/apis/list_types/schemas/v1.ts

@@ -0,0 +1,75 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { schema } from '@kbn/config-schema';
+
+const actionVariableSchema = schema.object({
+  name: schema.string(),
+  description: schema.string(),
+  usesPublicBaseUrl: schema.maybe(schema.boolean()),
+});
+
+const actionGroupSchema = schema.object({
+  id: schema.string(),
+  name: schema.string(),
+});
+
+export const typesRulesResponseBodySchema = schema.arrayOf(
+  schema.object({
+    action_groups: schema.maybe(schema.arrayOf(actionGroupSchema)),
+    action_variables: schema.maybe(
+      schema.object({
+        context: schema.maybe(schema.arrayOf(actionVariableSchema)),
+        state: schema.maybe(schema.arrayOf(actionVariableSchema)),
+        params: schema.maybe(schema.arrayOf(actionVariableSchema)),
+      })
+    ),
+    alerts: schema.maybe(
+      schema.object({
+        context: schema.string(),
+        mappings: schema.maybe(
+          schema.object({
+            dynamic: schema.maybe(schema.oneOf([schema.literal(false), schema.literal('strict')])),
+            fieldMap: schema.recordOf(schema.string(), schema.any()),
+            shouldWrite: schema.maybe(schema.boolean()),
+            useEcs: schema.maybe(schema.boolean()),
+          })
+        ),
+      })
+    ),
+    authorized_consumers: schema.recordOf(
+      schema.string(),
+      schema.object({ read: schema.boolean(), all: schema.boolean() })
+    ),
+    category: schema.string(),
+    default_action_group_id: schema.string(),
+    default_schedule_interval: schema.maybe(schema.string()),
+    does_set_recovery_context: schema.maybe(schema.boolean()),
+    enabled_in_license: schema.boolean(),
+    fieldsForAAD: schema.maybe(schema.arrayOf(schema.string())),
+    has_alerts_mappings: schema.boolean(),
+    has_fields_for_a_a_d: schema.boolean(),
+    id: schema.string(),
+    is_exportable: schema.boolean(),
+    minimum_license_required: schema.oneOf([
+      schema.literal('basic'),
+      schema.literal('gold'),
+      schema.literal('platinum'),
+      schema.literal('standard'),
+      schema.literal('enterprise'),
+      schema.literal('trial'),
+    ]),
+    name: schema.string(),
+    producer: schema.string(),
+    recovery_action_group: actionGroupSchema,
+    rule_task_timeout: schema.maybe(schema.string()),
+  })
+);
+
+export const typesRulesResponseSchema = schema.object({
+  body: typesRulesResponseBodySchema,
+});

x-pack/plugins/alerting/common/routes/rule/apis/list_types/types/latest.ts

@@ -0,0 +1,8 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export * from './v1';

x-pack/plugins/alerting/common/routes/rule/apis/list_types/types/v1.ts

@@ -0,0 +1,13 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import type { TypeOf } from '@kbn/config-schema';
+
+import { typesRulesResponseSchemaV1, typesRulesResponseBodySchemaV1 } from '..';
+
+export type TypesRulesResponse = TypeOf<typeof typesRulesResponseSchemaV1>;
+export type TypesRulesResponseBody = TypeOf<typeof typesRulesResponseBodySchemaV1>;

x-pack/plugins/alerting/server/rules_client/methods/list_rule_types.ts → x-pack/plugins/alerting/server/application/rule/methods/rule_types/rule_types.ts

@@ -5,8 +5,12 @@
  * 2.0.
  */
 
-import { WriteOperations, ReadOperations, AlertingAuthorizationEntity } from '../../authorization';
-import { RulesClientContext } from '../types';
+import {
+  WriteOperations,
+  ReadOperations,
+  AlertingAuthorizationEntity,
+} from '../../../../authorization';
+import { RulesClientContext } from '../../../../rules_client/types';
 
 export async function listRuleTypes(context: RulesClientContext) {
   return await context.authorization.filterByRuleTypeAuthorization(

x-pack/plugins/alerting/server/routes/index.ts

@@ -30,7 +30,7 @@ import { getRuleExecutionKPIRoute } from './get_rule_execution_kpi';
 import { getRuleStateRoute } from './get_rule_state';
 import { healthRoute } from './health';
 import { resolveRuleRoute } from './rule/apis/resolve';
-import { ruleTypesRoute } from './rule_types';
+import { ruleTypesRoute } from './rule/apis/list_types/rule_types';
 import { muteAllRuleRoute } from './rule/apis/mute_all/mute_all_rule';
 import { muteAlertRoute } from './rule/apis/mute_alert/mute_alert';
 import { unmuteAllRuleRoute } from './rule/apis/unmute_all';

x-pack/plugins/alerting/server/routes/rule/apis/list_types/index.ts

@@ -0,0 +1,8 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export { ruleTypesRoute } from './rule_types';

x-pack/plugins/alerting/server/routes/rule_types.test.ts → x-pack/plugins/alerting/server/routes/rule/apis/list_types/rule_types.test.ts

@@ -7,17 +7,17 @@
 
 import { ruleTypesRoute } from './rule_types';
 import { httpServiceMock } from '@kbn/core/server/mocks';
-import { licenseStateMock } from '../lib/license_state.mock';
-import { verifyApiAccess } from '../lib/license_api_access';
-import { mockHandlerArguments } from './_mock_handler_arguments';
-import { rulesClientMock } from '../rules_client.mock';
-import { RecoveredActionGroup } from '../../common';
-import { RegistryAlertTypeWithAuth } from '../authorization';
-import { AsApiContract } from './lib';
+import { licenseStateMock } from '../../../../lib/license_state.mock';
+import { verifyApiAccess } from '../../../../lib/license_api_access';
+import { mockHandlerArguments } from '../../../_mock_handler_arguments';
+import { rulesClientMock } from '../../../../rules_client.mock';
+import { RecoveredActionGroup } from '../../../../../common';
+import { RegistryAlertTypeWithAuth } from '../../../../authorization';
+import { AsApiContract } from '../../../lib';
 
 const rulesClient = rulesClientMock.create();
 
-jest.mock('../lib/license_api_access', () => ({
+jest.mock('../../../../lib/license_api_access', () => ({
   verifyApiAccess: jest.fn(),
 }));
 

x-pack/plugins/alerting/server/routes/rule/apis/list_types/rule_types.ts

@@ -0,0 +1,42 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { IRouter } from '@kbn/core/server';
+import { TypesRulesResponseBodyV1 } from '../../../../../common/routes/rule/apis/list_types';
+import { ILicenseState } from '../../../../lib';
+import { verifyAccessAndContext } from '../../../lib';
+import { AlertingRequestHandlerContext, BASE_ALERTING_API_PATH } from '../../../../types';
+import { transformRuleTypesResponseV1 } from './transforms';
+
+export const ruleTypesRoute = (
+  router: IRouter<AlertingRequestHandlerContext>,
+  licenseState: ILicenseState
+) => {
+  router.get(
+    {
+      path: `${BASE_ALERTING_API_PATH}/rule_types`,
+      options: {
+        access: 'public',
+        summary: `Get the rule types`,
+        tags: ['oas-tag:alerting'],
+      },
+      validate: {},
+    },
+    router.handleLegacyErrors(
+      verifyAccessAndContext(licenseState, async function (context, req, res) {
+        const rulesClient = (await context.alerting).getRulesClient();
+        const ruleTypes = await rulesClient.listRuleTypes();
+
+        const responseBody: TypesRulesResponseBodyV1 = transformRuleTypesResponseV1(ruleTypes);
+
+        return res.ok({
+          body: responseBody,
+        });
+      })
+    )
+  );
+};

x-pack/plugins/alerting/server/routes/rule/apis/list_types/transforms/index.ts

@@ -0,0 +1,9 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export { transformRuleTypesResponse } from './transform_rule_types_response/latest';
+export { transformRuleTypesResponse as transformRuleTypesResponseV1 } from './transform_rule_types_response/v1';

x-pack/plugins/alerting/server/routes/rule/apis/list_types/transforms/transform_rule_types_response/latest.ts

@@ -0,0 +1,8 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+export * from './v1';

x-pack/plugins/alerting/server/routes/rule/apis/list_types/transforms/transform_rule_types_response/v1.ts

@@ -0,0 +1,42 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { isBoolean } from 'lodash/fp';
+import { RegistryAlertTypeWithAuth } from '../../../../../../authorization';
+import type { TypesRulesResponseBodyV1 } from '../../../../../../../common/routes/rule/apis/list_types';
+
+export const transformRuleTypesResponse = (
+  ruleTypes: Set<RegistryAlertTypeWithAuth>
+): TypesRulesResponseBodyV1 => {
+  return Array.from(ruleTypes).map((ruleType: RegistryAlertTypeWithAuth) => {
+    return {
+      ...(ruleType.actionGroups ? { action_groups: ruleType.actionGroups } : {}),
+      ...(ruleType.actionVariables ? { action_variables: ruleType.actionVariables } : {}),
+      ...(ruleType.alerts ? { alerts: ruleType.alerts } : {}),
+      authorized_consumers: ruleType.authorizedConsumers,
+      category: ruleType.category,
+      default_action_group_id: ruleType.defaultActionGroupId,
+      ...(ruleType.defaultScheduleInterval
+        ? { default_schedule_interval: ruleType.defaultScheduleInterval }
+        : {}),
+      ...(isBoolean(ruleType.doesSetRecoveryContext)
+        ? { does_set_recovery_context: ruleType.doesSetRecoveryContext }
+        : {}),
+      enabled_in_license: ruleType.enabledInLicense,
+      ...(ruleType.fieldsForAAD ? { fieldsForAAD: ruleType.fieldsForAAD } : {}),
+      has_alerts_mappings: ruleType.hasAlertsMappings,
+      has_fields_for_a_a_d: ruleType.hasFieldsForAAD,
+      id: ruleType.id,
+      is_exportable: ruleType.isExportable,
+      minimum_license_required: ruleType.minimumLicenseRequired,
+      name: ruleType.name,
+      producer: ruleType.producer,
+      recovery_action_group: ruleType.recoveryActionGroup,
+      ...(ruleType.ruleTaskTimeout ? { rule_task_timeout: ruleType.ruleTaskTimeout } : {}),
+    };
+  });
+};

x-pack/plugins/alerting/server/rule_type_registry.ts

@@ -72,6 +72,7 @@ export interface RegistryRuleType
     | 'defaultScheduleInterval'
     | 'doesSetRecoveryContext'
     | 'fieldsForAAD'
+    | 'alerts'
   > {
   id: string;
   enabledInLicense: boolean;

x-pack/plugins/alerting/server/rules_client/rules_client.ts

@@ -62,7 +62,7 @@ import { unmuteAll } from '../application/rule/methods/unmute_all';
 import { muteAll } from '../application/rule/methods/mute_all';
 import { unmuteInstance } from '../application/rule/methods/unmute_alert/unmute_instance';
 import { runSoon } from './methods/run_soon';
-import { listRuleTypes } from './methods/list_rule_types';
+import { listRuleTypes } from '../application/rule/methods/rule_types/rule_types';
 import { getScheduleFrequency } from '../application/rule/methods/get_schedule_frequency/get_schedule_frequency';
 import {
   bulkUntrackAlerts,