Fix enable API to schedule task after alert is updated (#55095) (#55846)

Author: mikecote

x-pack/legacy/plugins/alerting/server/alerts_client.test.ts

@@ -883,7 +883,6 @@ describe('enable()', () => {
         schedule: { interval: '10s' },
         alertTypeId: '2',
         enabled: true,
-        scheduledTaskId: 'task-123',
         updatedBy: 'elastic',
         apiKey: null,
         apiKeyOwner: null,
@@ -892,6 +891,9 @@ describe('enable()', () => {
         version: '123',
       }
     );
+    expect(savedObjectsClient.update).toHaveBeenCalledWith('alert', '1', {
+      scheduledTaskId: 'task-123',
+    });
     expect(taskManager.schedule).toHaveBeenCalledWith({
       taskType: `alerting:2`,
       params: {
@@ -964,7 +966,6 @@ describe('enable()', () => {
         schedule: { interval: '10s' },
         alertTypeId: '2',
         enabled: true,
-        scheduledTaskId: 'task-123',
         apiKey: Buffer.from('123:abc').toString('base64'),
         apiKeyOwner: 'elastic',
         updatedBy: 'elastic',
@@ -973,6 +974,9 @@ describe('enable()', () => {
         version: '123',
       }
     );
+    expect(savedObjectsClient.update).toHaveBeenCalledWith('alert', '1', {
+      scheduledTaskId: 'task-123',
+    });
     expect(taskManager.schedule).toHaveBeenCalledWith({
       taskType: `alerting:2`,
       params: {

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

@@ -362,7 +362,6 @@ export class AlertsClient {
     });
 
     if (attributes.enabled === false) {
-      const scheduledTask = await this.scheduleAlert(id, attributes.alertTypeId);
       const username = await this.getUserName();
       await this.savedObjectsClient.update(
         'alert',
@@ -372,11 +371,11 @@ export class AlertsClient {
           enabled: true,
           ...this.apiKeyAsAlertAttributes(await this.createAPIKey(), username),
           updatedBy: username,
-
-          scheduledTaskId: scheduledTask.id,
         },
         { version }
       );
+      const scheduledTask = await this.scheduleAlert(id, attributes.alertTypeId);
+      await this.savedObjectsClient.update('alert', id, { scheduledTaskId: scheduledTask.id });
       await this.invalidateApiKey({ apiKey: attributes.apiKey });
     }
   }