[7.x] Alerting plugin migrate to Kibana platform (#57635) (#57921)

* resolved conflicts

* Delete codeowners file

* Revert merge conflicts with old version of utility.ts file

x-pack/.i18nrc.json

@@ -3,7 +3,7 @@
   "paths": {
     "xpack.actions": "plugins/actions",
     "xpack.advancedUiActions": "plugins/advanced_ui_actions",
-    "xpack.alerting": "legacy/plugins/alerting",
+    "xpack.alerting": "plugins/alerting",
     "xpack.triggersActionsUI": "plugins/triggers_actions_ui",
     "xpack.apm": ["legacy/plugins/apm", "plugins/apm"],
     "xpack.beatsManagement": "legacy/plugins/beats_management",

x-pack/legacy/plugins/alerting/index.ts

@@ -4,43 +4,4 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-import { Legacy } from 'kibana';
-import { Root } from 'joi';
-import { init } from './server';
-import mappings from './mappings.json';
-
-export {
-  AlertingPlugin,
-  AlertsClient,
-  AlertType,
-  AlertExecutorOptions,
-  PluginSetupContract,
-  PluginStartContract,
-} from './server';
-
-export function alerting(kibana: any) {
-  return new kibana.Plugin({
-    id: 'alerting',
-    configPrefix: 'xpack.alerting',
-    require: ['kibana', 'elasticsearch', 'actions', 'task_manager', 'encryptedSavedObjects'],
-    isEnabled(config: Legacy.KibanaConfig) {
-      return (
-        config.get('xpack.alerting.enabled') === true &&
-        config.get('xpack.actions.enabled') === true &&
-        config.get('xpack.encryptedSavedObjects.enabled') === true &&
-        config.get('xpack.task_manager.enabled') === true
-      );
-    },
-    config(Joi: Root) {
-      return Joi.object()
-        .keys({
-          enabled: Joi.boolean().default(true),
-        })
-        .default();
-    },
-    init,
-    uiExports: {
-      mappings,
-    },
-  });
-}
+export * from './server';

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

@@ -4,10 +4,32 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
-import { AlertsClient as AlertsClientClass } from './alerts_client';
+import { Legacy } from 'kibana';
+import { Root } from 'joi';
+import mappings from './mappings.json';
 
-export type AlertsClient = PublicMethodsOf<AlertsClientClass>;
-
-export { init } from './init';
-export { AlertType, AlertingPlugin, AlertExecutorOptions } from './types';
-export { PluginSetupContract, PluginStartContract } from './plugin';
+export function alerting(kibana: any) {
+  return new kibana.Plugin({
+    id: 'alerting',
+    configPrefix: 'xpack.alerting',
+    require: ['kibana', 'elasticsearch', 'actions', 'task_manager', 'encryptedSavedObjects'],
+    isEnabled(config: Legacy.KibanaConfig) {
+      return (
+        config.get('xpack.alerting.enabled') === true &&
+        config.get('xpack.actions.enabled') === true &&
+        config.get('xpack.encryptedSavedObjects.enabled') === true &&
+        config.get('xpack.task_manager.enabled') === true
+      );
+    },
+    config(Joi: Root) {
+      return Joi.object()
+        .keys({
+          enabled: Joi.boolean().default(true),
+        })
+        .default();
+    },
+    uiExports: {
+      mappings,
+    },
+  });
+}